Battery replacement method of double-channel battery replacement station

The invention discloses a battery replacing method of a double-channel battery replacing station. The method comprises the steps that the battery replacing station receives a battery replacing request of a battery replacing vehicle and determines whether the battery replacing vehicle is located in a first channel or a second channel; when it is determined that the battery replacing vehicle is located in a first channel, the battery replacing station determines a first battery replacing robot corresponding to the first channel and controls the first battery replacing robot to grab a power-lack battery box on the battery replacing vehicle located in the first channel to a temporary storage base; the target fully-charged battery box is grabbed to the battery replacing vehicle located on the first channel; or when it is determined that the battery replacing vehicle is located in a second channel, the battery replacing station determines a second battery replacing robot corresponding to the ...

Data report generation method and device, electronic equipment and storage medium

The embodiment of the invention relates to the technical field of data processing, and provides a data report generation method and device, electronic equipment and a storage medium, and the method comprises the steps: responding to a report generation instruction, and determining a target theme and target feature information corresponding to the report generation instruction; selecting a target data combination corresponding to the target theme from preset data combinations; wherein different preset data combinations correspond to different themes, and each preset data combination comprises a plurality of preset data; and selecting target data from the target data combination based on the target feature information, and generating a data report based on the target data. According to the embodiment, the feature analysis is performed on the preset data, the preset data is divided into different themes, the corresponding target data is automatically selected based on the report generation ...

Space target relative pose measurement method and system based on laser radar variable scale observation

The invention discloses a space target relative pose measurement method and system based on laser radar variable scale observation, and relates to the technical field of space target pose measurement. The method is technically characterized by comprising the following steps: (1) establishing two parallel network structures to respectively estimate the relative position and the relative attitude of a target; (2) estimating the relative position of a target through a position network in the convolutional neural network so as to determine a target translation vector; (3) translating the original point cloud to a coordinate system with a centroid as an original point; and (4) estimating the attitude quaternion of the target through an attitude estimation network in the CNN. According to the method, the real-time performance and the accuracy of laser radar variable-scale observation space target pose estimation can be obviously improved.

安装支架(传感器安装支架)

自动折叠式营房

Method for reducing residual alkali on surface of nickel-based positive electrode material and application thereof

The invention discloses a method for reducing residual alkali on the surface of a nickel-based positive electrode material and application thereof, and relates to the technical field of battery positive electrode materials, the method comprises the following steps: uniformly mixing a nickel-based positive electrode material precursor with a lithium source, then roasting and crushing to obtain a first sintered material, dissolving an organic acid lithium salt in deionized water, and carrying out vacuum drying to obtain a second sintered material; compared with a conventional washing process, the method has the advantages that the washing time is shortened, the non-electron exchange reaction between Li < + > in the nickel-based positive electrode material and H < + > in water is inhibited, and the nickel-based positive electrode material is obtained. Furthermore, the water washing process is simple to operate and low in cost, alkali residues on the surface can be effectively removed, the ...

Pier maintenance structure and construction method

The invention discloses a pier maintenance structure which comprises a water pipe, a water tank, a water pump in the water tank, a power source electrically connected with the water pump, a control device, a top frame, a pipe frame, a top lifting rope and a side lifting rope, one end of the water pipe is communicated with a water outlet of the water pump, a plurality of spraying holes are formed in the water pipe, and the other end of the water pipe is sealed and fixed to the top frame. The water pipe is downwards and spirally wound around the pier, the pipe frames are sleeved outside each layer of the water pipe and are correspondingly arranged up and down, the top-layer pipe frame is connected with the top frame through a top lifting rope, and the upper and lower pipe frames are connected through a side lifting rope. The device is uniform in spraying, capable of moving up and down without manpower and electric power, safe to use, capable of adapting to maintenance of piers of different ...

Tree planting mechanism and automatic tree planting device

The invention relates to a tree planting mechanism and an automatic tree planting device. The tree planting mechanism comprises a walking vehicle, the walking vehicle is provided with a lifting mechanism, the lifting mechanism is connected with a drill bit assembly, the drill bit assembly comprises a drill bit fixing seat connected with the lifting mechanism, the drill bit fixing seat penetrates through a fixing inner pipe, and the fixing inner pipe is fixed to the drill bit fixing seat; a spiral outer pipe is rotatably connected to the periphery of the fixed inner pipe, the top end of the spiral outer pipe is connected with a rotation driving mechanism arranged on the drill bit fixing seat, a first conical piece and a second conical piece are rotatably connected to the bottom end of the fixed inner pipe, and the first conical piece and the second conical piece are connected with a linkage driving mechanism arranged on the drill bit fixing seat to achieve opening and closing. The tree planting ...

Wind power submarine cable route detection method

The invention provides a wind power submarine cable route detection method. The method comprises the following steps: acquiring field environment data of a wind power submarine cable; according to the field environment data, the ship size and the draft depth for detection are determined; according to the size and the draft of the ship, a support is designed, and the support is installed on the corresponding ship; a shallow profiler system is installed on the support; laying measuring lines; after the measuring lines are arranged, sediment distribution and pipeline burying position information collection are carried out; processing and outputting the collected information; and determining the routing condition of the submarine cable according to the output information.

Preparation method of high-purity low-gas environment-friendly copper-chromium contact

The invention discloses a preparation method of a high-purity low-gas environment-friendly copper-chromium contact, which comprises the following steps: S1, collecting reclaimed materials of risers and bottom plates sawn off by vacuum consumable arc melting and vacuum induction melting, and preparing the reclaimed materials into raw materials; s2, the raw materials are put into a graphite crucible, vacuumizing is conducted, heating is conducted, after the raw materials are evenly melted, a vacuum pump is turned off, argon is slowly filled, power is reduced, heat preservation is conducted, and then the raw materials are poured into a water-cooling copper mold to be cooled and discharged out of a furnace; s3, the CuCr25-50 cast ingot obtained after vacuum induction melting is forged, and a forged ingot is obtained; s4, annealing the forged ingot to obtain an annealed forged ingot; s5, turning off oxide skin of the annealed forging ingot, and connecting the annealed forging ingot by adopting ...

Concrete test block storage device convenient to carry

The utility model relates to a concrete test block storage device convenient to carry, which belongs to the field of concrete test block maintenance, comprises a test block storage frame, wheels arranged at the bottom of the test block storage frame and a supporting net laid in the test block storage frame, and is characterized in that the test block storage frame is of a box structure with an opening in the top; a test block storage groove is formed in the middle of a bottom plate of the test block storage frame, the supporting net is arranged above the test block storage groove, the edge of the supporting net is not fixedly laid on the portion, around the test block storage groove, of the bottom plate, a supporting net inserting groove is formed in the bottom plate of the test block storage frame, and an inserting opening matched with the supporting net inserting groove is formed in a side plate of the test block storage frame in a penetrating mode. The test block is demolded and placed ...

Industrial waste gas efficient treatment device and treatment process

The industrial waste gas efficient treatment device comprises a draught fan, a filtering mechanism and a UV photolysis mechanism, the UV photolysis mechanism comprises a photolysis box, a flow guide box communicating with the lower end of the photolysis box and a photocatalyst cylinder net in shaft connection with the interior of the photolysis box, and the upper end of the photocatalyst cylinder net is fixedly connected with a cylinder top plate; a photocatalyst barrel net is arranged in the guide box, the photocatalyst barrel net and the guide box form a closed photocatalyst chamber, a fixed ultraviolet lamp tube is arranged in the photocatalyst chamber, the upper end of the photolysis box is communicated with a vertical waste gas discharge pipe, and a barrel top plate is fixedly connected with a turbine located in the waste gas discharge pipe. The exhausted waste gas drives the turbine in the waste gas exhaust pipe to rotate, so that the photocatalyst cylinder net is driven to rotate ...

Battery replacement control method based on automatic driving

The invention provides a battery replacement control method based on automatic driving, which is used for carrying out automatic driving control on an automobile to be subjected to battery replacement so as to drive the automobile to a proper battery replacement position, and comprises the following steps executed in each battery replacement station: S1, acquiring the battery replacement demand of a nearby vehicle, based on battery reserve in the battery swap station and the idle state of each battery swap area; s2, on the basis of the information obtained in the step S1, screening available battery replacement areas meeting the battery replacement requirements of the vehicle to be subjected to battery replacement; s3, a shortest path is planned for the vehicle to be subjected to battery replacement based on the current available battery replacement area, and battery replacement preparation is completed in the planned battery replacement area in advance; and S4, controlling the vehicle ...

Method for measuring temperature of balance in hypersonic wind tunnel test process

The invention belongs to the technical field of hypersonic wind tunnel tests, and discloses a hypersonic wind tunnel test process balance temperature measuring method, which comprises the following steps: selecting a measuring point position; welding a thermocouple; pasting a strain gauge; static calibration of the balance; and acquiring test data and analyzing and processing the data. The method for measuring the temperature of the balance in the hypersonic wind tunnel test process is simple, quick in response, easy to implement and accurate in result. The used thermocouple is small in structure, safe and reliable, does not need to change the structure of the balance, can be installed in a gap between the balance and a water cooling sleeve or a heat insulation sleeve, can accurately obtain the temperature of a measuring point position under the condition that the force measuring data and the structural strength of the balance are not affected, and can be used for measuring the temperature ...

A METHOD FOR IMPROVING THE COOLING CAPACITY OF A DIRECT AIR COOLING SYSTEM OF POWER PLANTS AND SUCH A COOLING SYSTEM

A method for improving the cooling capacity of a direct air cooling system of power plants involves the following steps: connecting a motor into an electric network voltage by a transformer in the cooling system, and outputting a voltage to the motor so that its working voltage is 380-390 V; outputting a frequency of 40-47 Hz to the motor by a frequency converter in the cooling system; driving a fan to rotate at a setting speed ratio via a reducer by the motor that operates at the voltage of 380-390 V and the frequency of 40-47 Hz; transporting the cooling wind produced by the rotation of the fan to a heat radiator. By the method, the output torque of the motor is increased and the regulation range of the fan is widened, so as to improve the cooling capacity of the direct air cooling system.

Railway vehicle and roof device thereof

The invention discloses a railway vehicle and a roof device thereof.The roof device comprises a roof plate and further comprises a mounting platform and a cover, the periphery of the mounting platform is fixedly connected with the roof plate, the cover is located above the mounting platform and fixedly connected with the mounting platform, and the roof plate is fixedly connected with the mounting platform. A mounting cavity for mounting antenna equipment is formed between the cover body and the mounting platform; the outer contour of the cover body and the contour of the car roof plate are in smooth transition. According to the structure of the roof device, the antenna equipment located on the roof is covered, so that the roof is smoother, the aerodynamic resistance can be reduced, the aerodynamic performance of the vehicle can be improved, and meanwhile, the antenna equipment can be protected.

Continuous nitration method of 3-substituted pyrazole

The invention belongs to the technical field of organic synthesis, and particularly relates to a continuous nitration method of 3-substituted pyrazole. The method comprises the following steps: step 1, preparing a mixed solution A from a 3-substituted pyrazole raw material and sulfuric acid, respectively pumping the mixed solution A and a nitric acid solution into a continuous flow mixer 1 for mixing, and sequentially carrying out reaction in a continuous flow reactor 1 and liquid separation in a continuous flow condenser 1 to obtain a mixed solution B containing a nitrated product; and step 2, respectively pumping water and the mixed solution B obtained in the step 1 into a continuous flow mixer 2 for mixing, and sequentially reacting through a continuous flow reactor 2 and filtering through a continuous flow filter to obtain a nitrated product. By optimizing process parameters of the continuous flow reaction, continuous nitration of 3-substituted pyrazole is realized, and the method has ...

Metering abnormal data screening device based on electricity utilization information acquisition system

The invention provides a metering abnormal data screening device based on an electricity utilization information acquisition system, and the device comprises a starting module, an information acquisition module, a data classification storage module, a device abnormity analysis module, a data abnormity analysis module, and a cloud computing storage module. The time when the information acquisition module starts an information acquisition task is determined, the information acquisition module is used for completing the data acquisition task and storing the acquired data into the data classification storage module, and the data classification storage module is used for automatically performing classification storage according to data types and storing the data in the database; then, according to different exception types, the data exception types are sent to the device exception analysis module and the data exception analysis module for big data analysis, and for complex calculation, a cloud ...

Battery replacing bin and battery replacing station

The invention discloses a battery replacing bin and a battery replacing station. The battery replacing bin comprises a box body, a battery replacing robot and a door body. A first cavity and a second cavity are formed in the box body, the first cavity and the second cavity are sequentially arranged in the height direction of the box body, the first cavity is used for loading a battery box, and a battery box inlet and outlet communicated with the second cavity is formed in the box body. And the battery replacement robot is arranged in the second cavity. The door body is connected to the box body, and the door body is used for opening or closing the battery box inlet and outlet. The first cavity and the second cavity of the battery replacing bin are arranged in the longitudinal direction, the battery replacing bin is small in occupied area, space is saved, the second cavity is arranged, a battery box moving channel is formed, the battery replacing station can replace batteries at fixed points ...

DEVICE AND METHOD IN WHICH RADIO FREQUENCY ANTENNA IS ALSO USED AS FM ANTENNA

A device and method in which a radio frequency antenna is also used as a Frequency Modulation (FM) antenna are disclosed in the present invention. The device includes: a radio frequency antenna, used for receiving FM signals and radio frequency signals for normal communication; a matching and isolation circuit, connected to the radio frequency antenna, used for isolating the radio frequency signals, matching the FM signals, and outputting the FM signals in a predetermined frequency band; a low noise amplifier circuit, connected to the matching and isolation circuit, used for amplifying the received FM signals; and an FM modem chip, connected to the low noise amplifier circuit, used for demodulating the received FM signals and outputting analog audio signals. In the way that the radio frequency antenna is also used as an FM antenna, and the two signals are effectively separated by the matching and isolation circuit, the present invention provides FM signals with good quality and strong anti-interference ...

Detection method and device of cable protector, storage medium and equipment

The invention discloses a cable protector detection method and device, a storage medium and equipment. The method comprises the following steps: preprocessing a to-be-detected cable, and determining a target to-be-detected area; acquiring a reflected wave signal of the target to-be-detected area; and determining the detection result based on the reflected wave signal. The technical problem that an existing cable protector detection method is poor in applicability is solved.

Domestic sewage integrated treatment device and method

The invention discloses a domestic sewage integrated treatment device and method.The domestic sewage integrated treatment device comprises a power box communicated with the lower end of a downpipe and a filter pipe communicated with the side face of the power box, the lower end face of the filter pipe is communicated with an underground sewage pipe, and a filter screen is installed at a communication opening; the spiral blade shaft is fixedly connected with spiral blades attached to the filter screen, a horizontal rotating shaft is connected into the power box through a shaft, the rotating shaft is fixedly connected with a plurality of driving blades evenly distributed in the circumferential direction, the driving blades on one side of the rotating shaft are located below the downpipe, and the rotating shaft drives the spiral blade shaft to rotate through a transmission mechanism. The end, away from the power box, of the filter pipe is communicated with a solid sewage pipe extending downwards ...

Disaster recovery method, device and system

The embodiment of the invention provides a disaster recovery method, device and system, the disaster recovery method is applied to a scheduling platform, the scheduling platform provides a group of management services for a first machine room and a second machine room, and the method comprises the following steps: under the condition that the first machine room fails, calling a switching service of the second machine room, updating a data storage node in the second machine room and a metadatabase instance node in the second machine room; calling a management and control service unit in the second machine room, distributing a data processing task corresponding to the first machine room to the second machine room, and updating database instance nodes in the second machine room; synchronizing data to the second machine room based on the updated data storage node, metadatabase instance node and database instance node in the second machine room; and according to a data synchronization result ...

Battery replacement authentication method, system and device and storage medium

The invention discloses a battery replacement authentication method, system and device and a storage medium, and relates to the technical field of battery replacement, and the method comprises the steps: a battery replacement station obtains the battery replacement vehicle information of a battery replacement vehicle and the information of a power-deficient battery, and sends an authentication request containing the battery replacement station information, the battery replacement vehicle information and the information of the power-deficient battery to a battery replacement platform; the battery replacement platform obtains an authentication strategy according to the battery replacement station information in the authentication request, and authenticates the battery replacement vehicle information and the power-lack battery information by using the authentication strategy to obtain an authentication result; and the battery replacement platform sends the authentication result to the battery ...

Heavy-duty car lane keeping auxiliary development method and system based on function safety

The invention provides a heavy-duty car lane keeping auxiliary development method and system based on function safety, relates to the technical field of road vehicle function safety, and aims to identify a function fault of a lane keeping auxiliary system; obtaining a safety target and an ASIL level according to the HARA analysis and evaluation model; converting the security target into a security design requirement; the safety design requirements are distributed to elements contained in the lane keeping assistance system; and confirming the functional safety of the lane keeping auxiliary system. According to the invention, an LKA system with functional safety requirements is integrated, so that the safety problem caused by hardware random failure and system failure in traditional product development is solved. In addition, safety risks caused by system failure and hardware random failure can be reduced, and the safety and reliability of the system are improved.

Safety protection method, system and equipment in battery replacement process and storage medium

The invention discloses a safety protection method, system and equipment in a battery replacement process and a storage medium, and relates to the technical field of vehicle battery replacement, and the safety protection method comprises the steps that when a vehicle is shifted to an ON gear by a user and a vehicle control unit is awakened, the vehicle control unit sends a self-checking instruction to a battery management system; the battery management system obtains a current system state mode according to the self-checking instruction; and when the current system state mode is a system state mode in battery replacement, the battery management system sends a self-checking abnormal message to the vehicle control unit, so that the vehicle control unit terminates the power-on process of the current vehicle according to the self-checking abnormal message. And when the battery management system acquires that the current system state mode is a system state mode in battery replacement, a self-checking ...

Network attack judgment method, electronic equipment and computer readable storage medium

The embodiment of the invention provides a network attack judgment method, electronic equipment and a computer readable storage medium, and relates to the field of network security. The method comprises the steps that a pre-configured expression is loaded and transmitted to an attack result judgment expression environment, and the attack result judgment expression environment comprises pre-injected types and methods defined according to grammar; transmitting key information of the attack alarm associated network data to an attack result judgment expression environment; and judging an expression environment by adopting an attack result, and analyzing the key information according to the expression to obtain an attack judgment result. According to the method, the key information of the attack alarm associated network data is transmitted to the attack result judgment expression environment, so that the final attack result can be quickly obtained through dynamic execution of the expression, ...

Method for regulating and controlling crystal face area of layered positive electrode material precursor (010) through anions

The invention discloses a method for regulating and controlling the crystal face area of a layered positive electrode material precursor (010) through anions, which comprises the following steps: by taking nickel-based inorganic salt or nickel-based organic salt as a raw material, reacting by adopting a nitrogen-containing complexing agent and an inorganic anion crystal face growth inducer to prepare a hydroxide seed crystal; the preparation method comprises the following steps: carrying out a coprecipitation reaction by taking hydroxide seed crystal as a base material, taking nickel-based inorganic salt or nickel-based organic salt as a raw material, and reacting by adopting a nitrogen-containing complexing agent and an inorganic anion crystal face growth inducer to prepare a nickel-based layered ternary positive electrode material precursor; the ternary positive electrode material precursor prepared by the method is relatively good in quality, the primary particle (010) crystal face of ...

Friction structural part used for being matched with polymer pair and preparation method and application of friction structural part

The invention discloses a friction structural part used for being matched with a polymer pair and a preparation method and application of the friction structural part. The friction structural part comprises a base body and a composite coating arranged on the friction face of the base body, the composite coating comprises a transition layer and an amorphous carbon layer which are sequentially arranged in a stacked mode in the direction away from the base body, and the amorphous carbon layer is doped with the Cr element. The friction interface of the coating and a polymer is regulated and controlled by doping the metal element Cr, the excellent lubricating property of the carbon-based coating is kept, the forming process of an amorphous carbon graphitization friction film is not affected, meanwhile, the adhesion chemical reaction can be inhibited, an excellent metal and amorphous carbon lubricating interface is formed, the matching pair friction running-in period is shortened, the friction ...

Tight coupling circular seam nozzle and particle reinforced cobalt-based metal powder processed by same

The invention relates to the field of metal powder preparation equipment, in particular to a tight coupling circular seam nozzle and a particle reinforced cobalt-based metal powder tight coupling circular seam nozzle machined by the same. The invention discloses a tight coupling circular seam nozzle, and aims to provide a tight coupling circular seam nozzle which can automatically prevent blocking and is better in powder making effect. Metal fluid is communicated into a flow guide pipe, the flow guide pipe is sleeved with a nozzle body, a hollow air cavity is formed in the nozzle body, and the air cavity comprises an air inlet hole penetrating through the side wall of the nozzle, and further comprises a steel-clad jet flow prevention striking hole and an atomization breaking striking hole which face towards the metal fluid, and further comprises an anti-blocking striking hole which is automatically formed and impacts steel clad. A linkage mechanism is arranged between the anti-blocking ...

CARDIAC PACING SYSTEM AND PACEMAKER FIXING DEVICE

A cardiac pacing system (601) and a pacemaker fixing device. The pacemaker fixing device comprises an annular stent (10) and at least one folding and unfolding portion (31, 32). The annular stent (10) is used for the installation of a leadless pacemaker (40) so as to reliably fix the leadless pacemaker (40) at a pre-determined position inside a body to avoid dislocation, and can also be reliably connected to an external mechanism by means of a connection portion (311, 321) of the folding and unfolding portion (31, 32) so as to withdraw and remove the cardiac pacing system (601), thereby increasing the success rate of operations for the removal and withdrawal of the cardiac pacing system (601). In addition, during implantation, the folding and unfolding portion (31, 32) can be operated by means of the external mechanism to complete the regulation of the pacing position of the leadless pacemaker (40), such that an operator can conveniently find the optimal pacing position, thereby improving ...

NANO MULTILAYER FILM, FIELD EFFECT TUBE, SENSOR, RANDOM ACCESSORY MEMORY AND PREPARATION METHOD

Disclosed are a nano multilayer film of electrical field modulation type, a field effect tube of electrical field modulation type, an electrical field sensor of switch type, and a random accessory memory of electrical field drive type, for obtaining an electro-resistance effect in an electrical field modulation multilayer film at room temperature. The nano multiplayer film comprises in succession from bottom to top an underlying layer (102), a substrate (101), an underlying layer (103), a functional layer (104), a buffer layer (105), an insulation layer (106), an intermediate conductive layer (107), and a cover layer (108), and the buffer layer (105) and the insulation layer (106) can be selectively added as required when the intermediate conductive layer (107) is a magnetic metal, a magnetic alloy or a magnetic metal composite layer. When the intermediate conductive layer (107) is a non-magnetic metal layer or an anti-ferromagnetic metal layer, the buffer layer (105) and the insulation ...

Diversion tunnel concrete based on corallite aggregate and construction method thereof

The invention relates to the technical field of concrete, and discloses diversion tunnel concrete based on corallite aggregate and a construction method of the diversion tunnel concrete, and tests prove that on the premise that coral concrete raw materials meet technical standards, the optimal mix proportion is determined; the coral concrete stirring process is optimized, the coral concrete is stirred through a sand and stone wrapping method, coral aggregate can be more evenly distributed in slurry, ultrahigh molecular weight polyethylene fiber grafted titanium dioxide serves as a reinforcing phase, and the average strength growth rate of the concrete can be effectively increased; physical properties such as compressive strength, bending strength and shrinkage deformation of the coral concrete are studied through tests, and the influence of a water-cement ratio on the physical properties of the coral concrete is studied.

Control method, device and equipment of wind tunnel test damping device and medium

The invention discloses a control method, device and equipment for a wind tunnel test damping device and a storage medium, and relates to the technical field of control. The invention provides a control method of a wind tunnel test damping device, which is applied to the wind tunnel test damping device and comprises the following steps: determining a vibration measurement signal detected by a six-component balance corresponding to a previous control period; performing modal decoupling and direction decoupling on the vibration measurement signal to obtain a single-degree-of-freedom independent modal signal; determining a control signal of the next control period according to the independent modal signal and a transfer function of the excitation signal corresponding to each order of signal; and driving an actuator of the damping device according to the control signal so as to reduce the vibration of the supporting rod. Closed-loop control can be effectively carried out on the damping device ...

METHOD FOR PREPARING CR-AL-C BASED MAX PHASE COATING AND USE THEREOF

Disclosed are a method for preparing a Cr-Al-C based MAX phase coating and the use thereof. The method includes firstly depositing a Cr-C layer onto the surface of a substrate through deposition by means of electric arc ion plating, wherein the thickness of the Cr-C layer is 0.5-5 μm; then depositing an Al layer onto the surface of the Cr-C layer through deposition by means of magnetron sputtering to obtain an Al/Cr-C coating; and finally, performing a heat treatment to obtain the Cr-Al-C based MAX phase coating with a (103) crystal face being preferentially oriented. The coating has a good electrical conductivity and corrosion resistance. Compared with the prior art, the Cr-Al-C based MAX phase coating prepared by the method not only improves the interface electrical conductivity between the coating and the substrate, but also improves the corrosion resistance, and has an excellent electrical conductivity, corrosion resistance and protection performance in severe environments.

Preparation method of thermoplastic elastic material for oil well cement

The invention provides a preparation method of a thermoplastic elastic material for oil well cement, which comprises the following steps: carrying out first mixing on a reactive solvent and an oil-soluble initiator to obtain a mixed solution; dissolving a water-soluble monomer in water, and adjusting the pH value to obtain a dissolved solution; performing second mixing on the dissolving solution, the mixed solution and a thermoplastic elastic material to obtain a mixture; and carrying out third mixing on a water-soluble initiator and the mixture, and reacting to obtain the thermoplastic elastic material for the oil well cement. The invention provides a thermoplastic elastic material TKA with a core-shell structure for oil well cement, which is characterized in that a thermoplastic elastic material (TPE) is used as a core and is added into a mixed solution of a reactive solvent and a water-soluble monomer to initiate polymerization, and a hydrophilic shell is formed on the surface under ...

Offshore wind power maintenance platform guardrail and grating plate looseness monitoring device and calculation method

The invention discloses an offshore wind power maintenance platform guardrail and grating plate looseness monitoring device and a calculation method, and relates to the field of offshore wind power building operation and maintenance monitoring, the device comprises a distance measuring sensor, a power supply and communication cable, a fixing module, a data acquisition and forwarding device and an alarm system, measuring points at two ends of the distance measuring sensor are respectively connected with the fixing module, the fixing module is arranged between two to-be-measured grating plates or guardrails or between guardrails and grating plates, the power supply and communication cable is electrically connected with the distance measuring sensor, and the data acquisition and forwarding device and the alarm system are arranged in a tower drum. The problem of monitoring the looseness of the guardrail and the grating plate during the operation of the offshore wind power overhaul platform ...

Intelligent public toilet management system

The invention relates to the technical field of public toilet management analysis, and particularly discloses an intelligent public toilet management system which comprises a scenic spot information acquisition module, a scenic spot information analysis module, a scenic spot tourist analysis module, a personnel information analysis module, a public toilet number analysis module, a public toilet placement analysis module, a scenic spot terminal platform and a scenic spot database. By analyzing the basic information corresponding to each scenic spot in the target scenic spot to obtain the estimated number of players corresponding to the preset month of each scenic spot in the target scenic spot, and then analyzing the placement information of the mobile toilets in each reference scenic spot, the pressure of the toilets in the scenic spot is effectively relieved, the toilet facilities in the scenic spot are improved, the image of the scenic spot is established, and the scenic spot experience ...

Energy scheduling method for battery swap station

The invention provides an energy scheduling method for a battery swap station. The method comprises the following steps executed at each moment: S1, obtaining a first battery number corresponding to the number of replaceable batteries of the battery swap station; s2, acquiring information of all vehicles about to perform battery replacement around the battery replacement station, and calculating the number of second batteries corresponding to the battery replacement requirements of all the vehicles; s3, when the second battery number is greater than the first battery number, charging the battery of the battery swap station; and S4, when the number of the second batteries is smaller than or equal to the number of the first batteries, querying whether the current electricity price is off-peak electricity or not, and charging the battery of the battery swap station when the current electricity price is off-peak electricity. Preferably, the method further comprises the steps that S5, whether ...

Automatic online plastic detection equipment

The embodiment of the invention provides automatic online plastic detection equipment. The automatic online plastic detection equipment comprises an injection molding machine, an automatic sampling device, a water gap cutting device, a density meter and a colorimeter, based on the modes of the Internet of Things technology, intelligent hardware design, intelligent monitoring equipment modification and the like, a color board and a density strip are automatically cut, the color difference is recognized in an AI recognition mode, automatic detection of the density strip is achieved, and automatic injection molding is achieved to generate a detection sample, and density detection and color difference detection indexes are completed through automatic equipment, a professional detection instrument and an algorithm; and meanwhile, for later-stage cluster management, a distributed network architecture for automatic online monitoring is established in a micro-service mode and the like.

Water storage device for ecological restoration of mine

The utility model discloses a water storage device for mine ecological restoration, and relates to the technical field of mine ecological restoration, in particular to a water storage device for mine ecological restoration, which comprises a foundation, the top of the foundation is fixedly connected with a water storage tank, and the inner side wall of the water storage tank is fixedly connected with a limiting block. The water storage device for ecological restoration of the mine achieves the purpose of good use effect, solves the problem of poor use effect of a common water storage device for ecological restoration of the mine, can filter rainwater, avoids the situation that leaves are easily accumulated in a reservoir when the water storage device is placed outdoors, ensures that stored water is not polluted, improves the purity of water, and improves the water quality. Meanwhile, blockage of a filter screen and a water pipe is reduced, personnel are prevented from falling into the reservoir ...

Large-aperture lens flexible supporting structure and assembling and adjusting method

The invention provides a large-aperture lens flexible supporting structure and an adjustment method, the flexible supporting structure comprises a lens and a lens base, the lens is connected with the lens base through a flexible axial supporting assembly and a flexible radial supporting assembly, and the lens base is provided with a first mounting part close to the convex surface of the lens and a second mounting part close to the plane of the lens; the flexible axial supporting assembly comprises an inner pressing ring, an outer pressing ring and a flexible part used for connecting the inner pressing ring and the outer pressing ring, the outer pressing ring is connected with the first mounting part, and the inner pressing ring is attached to the lens; the flexible radial supporting assembly comprises a plurality of pressing blocks and flexible cushion blocks, the pressing blocks are evenly distributed on the second installation part, and the flexible cushion blocks are arranged between ...

Battery replacement searching method and system

The invention discloses a battery replacement searching method and system, and relates to the technical field of electric vehicle battery replacement, and the method comprises the steps: a cloud platform receives a battery replacement searching request which is sent by a battery replacement station and comprises a battery replacement station ID and searching distance range information, and obtains the battery replacement station information from a battery replacement station database according to the battery replacement station ID in the searching request; the cloud platform obtains information of a plurality of electric vehicles from an electric vehicle database according to the battery swap station information and the search distance range information; and the cloud platform generates corresponding battery replacement service information according to the information of each electric vehicle, and sends the battery replacement service information to each electric vehicle terminal.

Partial discharge pulse electric field time domain waveform recovery method and system

The invention discloses a partial discharge pulse electric field time domain waveform recovery method and system. The method comprises the following steps: respectively decomposing a broadband electric field signal and an ultrahigh frequency sensor output voltage signal into a plurality of first sub-band signals and a plurality of second sub-band signals of which the frequency bands are not overlapped; respectively calculating amplitude flatness and group delay flatness of each sub-band signal based on the first sub-band signal and the second sub-band signal; judging whether the ultrahigh frequency sensor is a linear system or not based on the amplitude flatness and the group delay flatness, and obtaining a judgment result; and recovering the time domain waveform according to a preset recovery strategy based on the judgment result. Aiming at the two conditions that whether the transfer function of the UHF sensor is linear or not, the phase is recovered by adopting the minimum phase method ...

Fructus momordicae tea for treating constipation and preparation method thereof

The invention discloses fructus momordicae tea for treating constipation and a preparation method thereof, and belongs to the technical field of traditional Chinese medicines. The fructus momordicae tea for treating constipation is prepared from the following raw materials in parts by mass: 1-5 parts of processed folium sennae, 1-15 parts of semen cassiae, 1-40 parts of fructus momordicae, 1-7 parts of fructus aurantii immaturus, 1-6 parts of semen myristicae, 1-10 parts of black tea, 1-5 parts of flos chrysanthemi and 1-10 parts of fructus crataegi. The siraitia grosvenorii tea for treating constipation has the characteristics of clearing heat, moistening intestines, relaxing bowels, small side effect, low drug dependence, dissolving turbidity, removing food retention and the like, is safe and reliable, is suitable for a wide range of people, and is suitable for further popularization.

Method for assembling and adjusting Kude optical path of large-aperture telescope

The invention provides a large-aperture telescope Kude optical path installation and adjustment method, which comprises the following steps of: respectively placing white paper with grid scale marks at a near-axis end and a far-axis end of a Kude optical path so as to receive light spots of a visible light laser; rotating the telescope, and searching an azimuth axis and a pitch axis of the telescope according to the motion trail of the light spot; adjusting the angle of a corresponding reflector in the Kuder optical path, converging the motion trail of the light spot in the rotation process of the telescope, and completing the coarse adjustment of the Kuder optical path; respectively placing image paper with grid scale marks at a near-axis end and a far-axis end of the Kuder light path so as to receive light spots of the invisible light laser; and rotating the telescope, and adjusting the angle of the corresponding reflector in the Kuder light path according to the motion trail of the light ...

CONDUCTIVE LIQUID SILICONE RUBBER AND PREPARATION METHOD AND USE THEREOF

Disclosed is a conductive liquid silicone rubber employing a conductive filler comprising single-walled carbon nanotubes. Single-walled carbon nanotubes are used herein for the first time as a conductive filler to prepare a conductive liquid silicone rubber complex material comprising the single-walled carbon nanotubes. By means of a two-step pre-mixing operation and a specific formula design, dispersion of single-walled carbon nanotubes, which have been added in the smallest quantity, throughout a system is effectively achieved, enabling a reduction in product viscosity and and enhancing workability, while preventing problems such as agglomeration, sedimentation, precipitation etc. Accordingly, an effective conductive network pathway is formed, allowing preparation of a conductive material having a volume resistivity of less than 100 Ω⋅cm. The resulting conductive liquid silicone rubber has excellent electrical performance for a small quantity of conductive filler added, good mechanical ...

Offshore wind power structure underwater biological attachment thickness measuring device and calculation method

The invention discloses an offshore wind power structure underwater biological attachment thickness measuring device and a calculating method, and relates to the field of offshore wind power building operation and maintenance monitoring, the device comprises a sonar range finder, a protective shell, an electromagnet, a position adjusting device, an integrated electronic device and a communication and power supply cable, the sonar range finder is arranged in the protective shell, and the electromagnet is arranged in the protective shell. The electromagnet is fixed to the protective shell, the position adjusting device is connected with the protective shell, the integrated electronic equipment is arranged in the tower drum, and the communication and power supply cable is electrically connected with corresponding elements. The problem of measuring and calculating the thickness of the underwater biological attachment of the offshore wind power structure is solved, and the device is easy to ...

Preparation method of chip solid electrolytic capacitor

The embodiment of the invention provides a preparation method of a chip solid electrolytic capacitor. The preparation method comprises the following steps: connecting a valve metal body to a valve metal wafer through a connecting colloid; sintering the valve metal wafer loaded with the valve metal body; sequentially forming a dielectric layer and a cathode layer on the surface of the sintered valve metal body, so that the dielectric layer and the cathode layer of the valve metal body form a capacitor element; the valve metal wafer loaded with the capacitor element is subjected to mould pressing packaging, and the cathode end of the capacitor element is exposed; the cathode end of the capacitor element is connected with a cathode end plate; and cutting the valve metal wafer to form the chip type solid electrolytic capacitor with the anode end plate and the cathode end plate. According to the method, the chip type solid electrolytic capacitor without a lead frame structure is realized, the ...

Vehicle-mounted multimedia camera test equipment

The invention discloses vehicle-mounted multimedia camera testing equipment, and belongs to the technical field of testing equipment, the vehicle-mounted multimedia camera testing equipment comprises a testing box, a supporting frame is fixed in the testing box, a first supporting rod, a second supporting rod, two sliding rods, a first straight rod, a second straight rod and a first camera are arranged in the testing box, and a first cylinder is arranged on the first supporting rod and the first straight rod; a second air cylinder is arranged on the second supporting rod and the second straight rod, a piston rod of the second air cylinder is connected with a second camera, a third camera is arranged on the second camera, a driving motor, a bearing plate, a transition plate, a pointer rotating disc and a third air cylinder are arranged on the supporting frame, and a mounting plate is fixed to the bearing plate. A test product and a clamping mechanism are arranged on the mounting plate, the ...

Decision-making method and device for relay protection equipment state maintenance strategy

The invention discloses a decision-making method and device for a relay protection equipment state maintenance strategy. The method comprises the steps that the operation service age of to-be-detected protection equipment is calculated, and the maximum maintenance period of the to-be-overhauled protection equipment is determined; according to the maximum maintenance period of the to-be-overhauled protection equipment, the optimal maintenance period range of the to-be-overhauled protection equipment is determined in combination with the operation state of the primary equipment; screening out a maintenance mode set of the to-be-maintained protection equipment according to the optimal maintenance period range and the fault condition of the to-be-maintained protection equipment; and according to a pre-established protection equipment maintenance optimization model, calculating each maintenance mode in the maintenance mode set of the to-be-maintained protection equipment, and determining the ...

Intelligent order sorting method and device and medium

The invention provides an intelligent order sorting method and device and a medium, and relates to the technical field of intelligent order sorting, and the method comprises the steps: S1, receiving a to-be-sorted order M submitted by an operator; s2, calling a point location state and a point location list of an actual point location Pi corresponding to the order point location OPi, wherein the point location list is a point location list in which the order point locations OPi in the point location list are sorted in an ascending order according to a retention time period; s3, updating the state and the retention time period of the order point location OPi according to the point location state corresponding to the order point location OPi; s4, judging whether the order point locations OPi in the to-be-sorted order M meet the condition of successful ordering or not, if yes, adding the order point locations OPi into the corresponding point location list according to the updated retention ...

Clamp device, test system and method for measuring interface bonding strength of coating and substrate

The invention discloses a clamp device, a test system and a method for measuring the interface bonding strength of a coating and a matrix, and the clamp device comprises an upper clamp and a flat-bottom cylindrical pin I. The upper clamp is used for clamping a sample to be tested, and the flat-bottom cylindrical pin I is used for bonding and fixing the coating surface of the sample to be tested; the upper clamp comprises a cylindrical pin II, a sliding part, a clamping assembly and a screw assembly; the cylindrical pin II is perpendicular to the upper surface of the sliding component and is in threaded connection with the upper surface of the sliding component; the clamping assembly is fixed on the sliding part in a sliding manner through the screw assembly and is used for clamping the sample to be tested. And under the drawing action of the drawing testing mechanism, the bonding strength of the to-be-tested material between the coating and the substrate at the relative position of the ...

Foundation pit horizontal displacement automatic monitoring method and system based on virtual center point

The invention discloses an automatic monitoring method and system for horizontal displacement of a foundation pit based on a virtual center point, and the method comprises the steps: respectively confirming the arrangement point positions of field monitoring based on the position of a current foundation pit, and constructing the geometric features of the foundation pit, calculating the plane distance from each monitoring point to the corresponding virtual center point of the foundation pit, and reducing the calculated plane distance to the corresponding direction perpendicular to the sideline of the foundation pit; and calculating a horizontal displacement value corresponding to the horizontal displacement monitoring point according to the foundation pit sideline type to which the monitoring point belongs. According to the method, the appropriate virtual center point is set, the calculation process of the horizontal displacement value of the monitoring point and the judgment condition of ...

Preparation method and application of bentonite-loaded sulfurized nano-iron repairing agent

The invention provides a preparation method and application of a bentonite loaded sulfurized nano-iron repairing agent. The preparation method comprises the following steps: under an anaerobic condition, adding bentonite and polyethylene glycol into a ferrite solution, then adding an alkaline solution containing NaBH4 and a vulcanizing agent, and preparing the bentonite-loaded vulcanized nano-iron repairing agent (PSNZVI) through a one-step synthesis method. According to the PSNZVI provided by the invention, the agglomeration is reduced, the biotoxicity is reduced, the oxidation resistance and the settling performance are enhanced, the reaction activity is greatly improved, the trichloroethylene removal efficiency is obviously improved, a new idea is provided for groundwater chlorohydrocarbon pollution remediation, and the method has a wide application prospect.

Signal separation method of Ethernet full duplex communication link

The invention discloses a signal separation method of an Ethernet full-duplex communication link, which comprises the following steps: when two pieces of Ethernet terminal equipment are in full-duplex communication, collecting mixed signals at two ends of a twisted pair connecting the two pieces of Ethernet terminal equipment for multiple times to obtain values of multiple groups of mixed signals; the mixed signal comprises single-ended signals sent by two Ethernet terminal devices; based on the values of the multiple groups of mixed signals and the resistance values of two resistors in the two wires of the twisted pair, determining the value of an internal resistance parameter which enables the single-ended signals of the two Ethernet terminal devices to have the highest mutual independence, and obtaining a target internal resistance parameter; and separating single-ended signals of the two Ethernet terminal devices from the mixed signal based on the target internal resistance parameter ...

STREAMLINE WAVY FIN FOR FINNED TUBE HEAT EXCHANGER

Disclosed is a streamline wavy fin for a finned tube heat exchanger, comprising a fin body (1), wherein an airflow inlet (3) is formed at one end of the fin body (1), an airflow outlet (4) is formed at the other end thereof, a mounting hole (2) for mounting a tube bundle is arranged in the fin body (1), several convex ripples (11) and concave ripples (12) arranged at intervals are continuously formed on the fin body (1) in an airflow streamline direction from the airflow inlet (3) to the airflow outlet (4), and both a wave crest connecting line (5) of the convex ripples (11) and a wave trough connecting line (6) of the concave ripples (12) are streamlines, so that the detachment of fluid at the tail of a circular tube is effectively inhibited, and the flow pressure loss is significantly reduced; and meanwhile, the surface area of a fin is increased, the fin-side heat-transfer thermal resistance is reduced, and the streamline flow of the fluid enables a backflow region to not be easily generated ...

Distributed offshore wind power pile foundation scouring monitoring device and calculation method

The invention discloses a distributed offshore wind power pile foundation scouring monitoring device and calculation method, and relates to the field of offshore wind power building operation and maintenance monitoring, the device comprises a tower fixing module, a structural rod piece, an anchor hammer, a connector, a communication cable, a power supply cable, a sensor module, a data acquisition and forwarding device, a mooring rope, a floating ball and a deployment and recovery module, the tower fixing module comprises an electromagnet, a sensor module is fixed to the midpoint in the length direction of each structural rod piece, an anchor hammer is fixed to the rod end of each structural rod piece, the connectors are fixed to the rod ends of the structural rod pieces, the structural rod pieces are connected end to end through the connectors, one end of each structural rod piece is connected with the tower fixing module after series connection and connected to the outer wall of a tower ...

Pressing and bonding machine for carbon fiber arrow shaft production

The invention discloses a carbon fiber arrow shaft production pressing and sticking machine which comprises a base, a left supporting arm and a right supporting arm are vertically arranged on the base, an instrument box is arranged on the left supporting arm and the right supporting arm, a lifting mechanism is arranged on a cross beam, the lower end of the lifting mechanism is connected with a pressing knife connecting block, and the pressing knife connecting block is connected with a pressing knife. A workbench panel and a limiting plate are horizontally arranged on the base, a supporting plate is arranged on the base and located under a gap between the workbench panel and the limiting plate, the supporting plate is used for placing an arrow shaft core rod, and the pressing knife is located over the supporting plate. According to the pressing and bonding machine for producing the carbon fiber arrow shaft, the arrow shaft core rod and the carbon fiber cloth are bonded together in an extrusion ...

Lever-type plugging and unplugging jack box

The jack box is arranged above the top face of a bus duct, side pressing plates are arranged on the two end faces of the jack box, plugging mechanisms are arranged on the outer sides of the two ends of the jack box, and each plugging mechanism comprises a rotating shaft seat, a plugging handle and a force application ball head. The rotating shaft seat is arranged on the outer side of the vertical center line of the two ends of the plugging box, the plugging handle is axially arranged on the rotating shaft seat, the plugging handle is in an inverted F shape, force application balls are arranged at the ends of two parallel cross rods at the bottom of the plugging handle, and the force application balls are arranged above the surfaces of the side pressing plates. By specially arranging the plugging mechanisms for assisting plugging on the outer sides of the two ends of the plugging box, the plugging box can be conveniently plugged into or pulled out of the bus duct through the principle of ...

Household solid heat storage type water heater

The invention provides a household solid heat storage type water heater, belongs to the technical field of water heaters, and solves the problem that in the prior art, the hot water storage amount is small. The household solid-state heat storage type water heater comprises a solid-state heat storage module, a water pipe and an electric heating device. The electric heating device is in contact connection with the solid-state heat storage module, and the electric heating device is used for generating heat energy and storing the heat energy in the solid-state heat storage module; a water inlet is formed in one end of the water pipe, a water outlet is formed in the other end of the water pipe, and the water pipe is arranged around the solid-state heat storage module and is in close contact with the solid-state heat storage module.

Intelligent detection system, method and platform based on injection molding production

The invention belongs to the technical field of injection molding production, and particularly relates to an intelligent detection system, method and platform based on injection molding production. The intelligent detection system based on injection molding production comprises an acquisition unit, a detection unit and a control unit, wherein the acquisition unit is used for acquiring a to-be-detected sample material; the processing unit is used for processing, detecting and analyzing the sample material in real time; the generating unit is used for generating a report in real time according to sample material processing and detection analysis data. The invention further discloses a corresponding method, a platform and a storage medium. According to the invention, automatic detection and acquisition can be realized after particles are injection-molded into a color plate, and detection data are automatically and efficiently transmitted and managed, so that the working efficiency is greatly ...

Multifunctional rock triaxial visual test system

The invention belongs to the field of rock mechanical tests and rock mechanical test equipment, and particularly relates to a multifunctional rock triaxial visual test system. The invention aims to solve the problems of insufficient overall rigidity of a test system, low resolution of a CT scanning system, winding of high-pressure pipelines, circuits and signal lines of the test system, complexity of a control system, large overall size and the like. The device comprises an axial loading system, a high-energy accelerator CT scanning system, a rotary table system, a triaxial pressure chamber, a fluid fracturing pump, a temperature pump, a confining pressure loading pump, a power oil source and a comprehensive console. The high-energy accelerator CT scanning system is driven by the rotary table system to rotate, scanning internal imaging is conducted on a rock sample, and compression and fracturing experiments are conducted on the rock sample through the triaxial pressure chamber and the ...

NANO-PATTERNED SYSTEM AND MAGNETIC-FIELD APPLYING DEVICE THEREOF

A nano-patterned system comprises a vacuum chamber (1), a sample platform (2) and a magnetic-field applying device (3). The magnetic-field applying device (3) comprises a power source (31), a magnetic-field generation device (32) and a pair of magnetic poles (33). The magnetic-field generation device (32) comprises a coil (321) and a magnetizer soft iron core (322). The power source (31) is connected to the coil (321), and the coil (321) is wound on the magnetizer soft iron core (322) to generate a magnetic field. The magnetizer soft iron core (322) is of a semi-closed frame structure, and the magnetic poles (33) are respectively arranged at the two ends of the semi-closed frame structure. The sample platform (2) is arranged in the vacuum chamber (1) of the nano-patterned system. The magnetic poles (33) are arranged inside the vacuum chamber (1) opposite to the sample platform (2), and the coil (321) and the magnetizer soft iron core (322) are arranged outside the vacuum chamber (1). The ...

Current shunt

The invention provides a current shunt, and belongs to the technical field of shunts. The current shunt comprises a shell, a conductive module, a gunpowder chamber, a controller and a circuit breaker. The conductive module is installed in the shell, the interior of the conductive module is disconnected, and the disconnected parts are electrically connected through the resistor narrow neck; the gunpowder chamber is installed on the side, facing the resistor narrow neck, of the shell. The controller is connected with a lead of the gunpowder chamber so as to detonate the gunpowder chamber when the current of the conductive module is larger than a preset threshold value. And the circuit breaker sheet is arranged in the shell and thrusts the resistor narrow neck under the impact of detonation airflow of the gunpowder chamber, so that the current shunt is actively disconnected. The problem that in the prior art, due to the fact that a current shunt lacks an active circuit breaking function, the ...

Semantic analysis method for self-checking alarm information of relay protection equipment and related device

The invention discloses a semantic analysis method for self-checking alarm information of relay protection equipment and a related device. The method comprises the following steps: collecting a self-checking alarm information feature set of relay protection equipment; performing effective feature extraction on the self-inspection alarm information feature set by adopting a pre-trained low-dimensional feature space, and determining a self-inspection alarm information feature subset of a predetermined dimension; and classifying the self-inspection alarm information feature subsets by using a pre-constructed second-class classifier, and determining semantic tags corresponding to the self-inspection alarm information feature subsets. Automatic understanding of original self-inspection alarm information semantics is realized, and relay protection online monitoring and operation analysis are supported.

NANO-PATTERNED SYSTEM AND PHOTORESPONSIVE CHARACTERISTIC DETECTION DEVICE THEREOF

A photoresponsive characteristic detection device (35). The photoresponsive characteristic detection device (35) comprises a light emitter (351), an inlet optical fibre (352), a light detector (353), a CCD imaging device (354) and a precisely conductive optical fibre (355), wherein the light emitter (351) is connected to the inlet optical fibre (352) by the precisely conductive optical fibre (355), the light detector (353) is connected to the CCD imaging device (354) by the precisely conductive optical fibre (355), both the inlet optical fibre (352) and the light detector (353) are arranged in a vacuum chamber (32) of a nano-patterned system corresponding to a sample platform (34) of the nano-patterned system, the inlet optical fibre (352) is used for introducing light beams emitted by the light emitter (351) onto a sample on the sample platform (34), the light detector (353) is used for collecting the reflected light of the sample, and the light detector (353) is arranged opposite to the ...

Method and equipment for determining travelled distance of battery-changing heavy truck and storage medium

The invention provides a method and equipment for determining the travelled distance of a battery-changing heavy truck and a storage medium. The method comprises the following steps: acquiring the travelled distance and road conditions of a vehicle; the weight of the vehicle is obtained through a tire pressure detection module, the tire pressure detection module is located in a battery replacement controller, and the battery replacement controller is located in the vehicle; and determining the mileage of the residual electric quantity according to the weight, the mileage and the road condition. The method provided by the invention comprises the following steps: acquiring the mileage and road condition of a vehicle; the weight of the vehicle is obtained through the tire pressure detection module, the travelled distance of the remaining electric quantity is determined according to the weight, the travelled distance and the road condition, and automatic and accurate calculation of the travelled ...

Luminescence enhanced temperature sensing up-conversion material and preparation method and application thereof

The invention belongs to the field of temperature sensing materials, and particularly relates to a luminescence enhanced temperature sensing up-conversion material and a preparation method and application thereof. The preparation method comprises the following steps: S1, dissolving Nb2O5 and excessive hydrofluoric acid in a water bath for several hours, dropwise adding ammonia water to adjust the pH value, filtering, and washing to obtain a white precipitate Nb2O5-nH2O; s2, Nb2O5-nH2O is dissolved in an aqueous solution of Ti (C4H9O) 4 and citric acid, bismuth nitrate, gadolinium nitrate, holmium nitrate, ytterbium nitrate, ammonium nitrate and EDTA are added into the solution, and a mixed solution is obtained; s3, heating and stirring the mixed solution until gel is formed, and drying the gel to obtain dry gel; and S4, calcining the xerogel in a muffle furnace to obtain the up-conversion material for luminescence enhanced temperature sensing. When the up-conversion material for luminescence ...

Long list rolling recovery method, system and device based on React framework

The invention relates to the technical field of computers, and discloses a long list scrolling recovery method, system and device based on a React framework, and the method comprises the steps: when a scrolling event of a long list scrolling container is monitored, obtaining a first method corresponding to an index value according to the index value of the long list scrolling container and a key value pair stored in a scrolling manager, calling a first method to obtain a rolling position of the long list rolling container, and reporting the rolling position to a rolling manager; monitoring a route switching condition, judging whether to switch from the route in which the long list scrolling container is located to other routes, if so, acquiring a route change condition, judging whether to match the route in which the long list scrolling container is located, and if the matching is successful, calling a second method of the scrolling manager according to the index value. And according to ...

Linkage device and high-pressure gas tank

The invention discloses a linkage device and a high-pressure gas tank in the technical field of power distribution systems, and aims to solve the problem that in the prior art, a linkage structure in a high-pressure gas tank is complex. And the replacement is inconvenient. The device comprises an impact rod, a connecting plate, a first rotating piece and a second rotating piece, the first rotating piece is movably connected to the first support; the second rotating piece is located below the first rotating piece and movably connected to the second support. The top end of the first rotating part is arranged on the impact rod, and the bottom end of the first rotating part is in contact with the top end of the second rotating part; the connecting plate is arranged at the bottom end of the second rotating part; when the connecting plate is pushed, the second rotating piece rotates anticlockwise, the first rotating piece can be driven to rotate clockwise, and the impact rod is jacked up; the ...

Battery pack, battery pack protection method and automobile

The invention provides a battery pack. The battery pack comprises a box cover; the box body is connected with the box cover; the battery cell group is arranged in the box body; the monitoring assembly is arranged in the box body so as to obtain the information of the environment where the battery cell group is located; the controller is used for acquiring the environment information of the monitoring assembly and entering different protection states based on a comparison result of the environment information and a preset condition; and the protection assembly is used for completing fire extinguishing according to the protection state of the controller. Through the battery pack disclosed by the invention, the safety performance of the battery pack can be improved.

Card type miniature imaging temperature monitoring device

The invention discloses a card type miniature imaging temperature monitoring device which comprises a shell, an angle adjustment driving mechanism, a locking mechanism and a butt joint mechanism. Connecting seats are symmetrically arranged at the upper end and the lower end of the left wall of the shell, second clamping balls are fixedly connected to the right ends of the opposite inner side faces of the two connecting seats through connecting rods, the second clamping balls are rotationally connected with first over-semi-circular grooves symmetrically formed in the outer side of the thermal infrared imager, and rectangular grooves are symmetrically formed in the four corners of the front surface of the shell; insertion blocks are inserted into the rectangular grooves, a buckle cover is fixedly connected between the front ends of the four insertion blocks, and a first round hole formed in the front surface of the buckle cover and the thermal infrared imager are installed in a matched mode ...

Continuous temperature measurement tray that can fix a position

... 本实用新型属于炼钢厂连铸机中间包测温使用的连续测温装置结构的改进，特别是种可定位的连续测温托盘, 包括上端设置有圆盘形托盘的圆筒状护筒，其托盘的上面固接着圆筒状的护壳，在圆筒状护筒内的上部设置着圆柱形的凹台，圆柱形的凹台与测温仪的测温头相配合。本实用新型结构合理，使测温探头安装稳固，可以提高中间包钢水测温准确率，降低连续测温探头的消耗和更换数量，提高使用寿命，可以降低备件成本及维护成本，降低工人劳动强度。 ...

Power grid fault positioning method and device, medium and equipment

The invention discloses a power grid fault positioning method and device, a medium and equipment. The method comprises the steps that after a power grid breaks down, preset fault characteristic quantities of power grid fault candidate equipment are extracted, and the preset fault characteristic quantities comprise eight power grid fault characteristic quantities of an A phase, a B phase, a C phase, an AB phase, a BC phase and an AC phase of each power grid fault candidate equipment; and inputting the preset fault characteristic quantity into the trained fault positioning model, and outputting a fault positioning result of the power grid.

Intelligent management system for office

The invention discloses an intelligent management system for an office. The intelligent management system comprises an office staff management system, an office article management system, an office work management system and a safety management system. The office management system is provided with the office staff management system, the office article management system, the office work management system, the safety management system, the central processing unit and the communication system, so that intelligent management work of an office is realized; the office staff, articles and work are managed through the office staff management system, the office article management system and the office work management system, so that the problems that the office staff and articles are numerous, and the work information of the staff and the processed work information are numerous are solved; according to the office management system, unified management of office staff, articles and work is achieved ...

Application of macrophage sealing agent in preparation of ADC drug side reaction treatment or prevention product

The invention relates to the field of medicine, in particular to application of a macrophage sealing agent to preparation of a product for treating or preventing ADC drug side reactions, the macrophage sealing agent is a substance capable of being swallowed by macrophages, the macrophage sealing agent is selected from small molecule substances or protein, and the protein is selected from globulin or albumin. Albumin is adopted to seal macrophages, then ADC drug treatment is carried out, a good interstitial pneumonia intervention effect is obtained, meanwhile, the anti-tumor curative effect of ADC is not affected, and high clinical value is achieved.

Domestic sewage treatment device and treatment method

The invention discloses a domestic sewage treatment device and method, and relates to the technical field of sewage treatment.The domestic sewage treatment device comprises a treatment box, the interior of the treatment box is divided into a filtering chamber and a biological reaction chamber through a partition plate, the filtering chamber communicates with a water inlet pipe, and the top of the biological reaction chamber communicates with a water outlet pipe; a communicating pipe is communicated between the bottom of the filtering chamber and the bottom of the biological reaction chamber; the cleaning mechanism comprises a filter screen, a linkage assembly, a cleaning shaft, cleaning blades and a collecting bag, the filter screen is installed in the filter chamber, and the linkage assembly is arranged, so that when the sealing bin door is rotationally opened, a biological membrane on the flow guide plate is conveniently replaced; meanwhile, the sealing bin door rotates to finally drive ...

Closed valve for ventilation air conditioner

The invention relates to the technical field of closed valves, discloses a closed valve for a ventilation air conditioner, and solves the problems that the automation degree of the closed valve is low due to the fact that a baffle in the closed valve needs to be manually rotated, dust can be brought in during ventilation of an air conditioner pipeline, the dust can enter the air conditioner through the closed valve, and the ventilation efficiency is high. The sealing valve comprises a sealing valve body, a cavity is formed in the middle of the sealing valve body, a first containing groove located above the cavity is formed in the top end of the sealing valve body, and a second containing groove located on one side of the cavity is formed in the sealing valve body; the cavity communicates with the second containing groove through communicating holes formed at equal intervals, and four rotating doors are sequentially arranged in the cavity from top to bottom. According to the design, intelligent ...

Multiplex fluorescent quantitative PCR primer group for simultaneously detecting three pathogenic bacteria in food, kit and application

The invention discloses a multiplex fluorescent quantitative PCR primer group for simultaneously detecting three pathogenic bacteria in food, a kit and application, and belongs to the technical field of molecular detection of food-borne pathogenic bacteria. The primer group comprises the following sequences: primers and probes as shown in SEQ ID NO: 1-3 for expanding a shiga toxin Escherichia coli gene wzx, and primers and probes as shown in SEQ ID NO: 2-3, the primers and the probes are used for amplifying a listeria monocytogenes gene plcA and are shown as SEQ ID NO: 4-6; the primers and the probes are used for amplifying salmonella gene hilA and are shown as SEQ ID NO: 7-9. The detection method disclosed by the invention can be used for simultaneously detecting the three pathogenic bacteria at one time, has the advantages of short time consumption and high detection efficiency, can be used for carrying out quantitative detection, can meet the rapid detection requirement of large-scale ...

Slow-release anti-freezing material and preparation method thereof

The invention belongs to the technical field of road safety. The invention provides a slow-release anti-freezing material and a preparation method thereof. The slow-release anti-freezing material is prepared from the following raw materials in parts by mass: 5-10 parts of vermiculite, 5-10 parts of an ice melting agent, 0.8-1.2 parts of sodium carboxymethyl cellulose, 15-20 parts of polyvinyl alcohol fiber, 15-25 parts of monolauryl phosphate, 1-3 parts of a coupling agent, 10-15 parts of epoxy resin, 8-12 parts of a curing agent and 30-40 parts of asphalt. Vermiculite, an ice melting agent and water are mixed and stirred, and the ice melting agent enters the vermiculite to be sealed and stored and is slowly released in the road; the addition of the polyvinyl alcohol fibers can effectively reduce the erosion of the ice melting agent to the road, and meanwhile, the fibers are in a disordered state in the mixture, so that various components can be connected, and a bridging effect is achieved ...

Three-dimensional visual safety production management and control system for port storage yard

The invention discloses a three-dimensional visual safety production management and control system for a port storage yard. The system comprises the following parts: a thermogram acquisition and splicing module, a point cloud three-dimensional data processing module, a thermogram material pile three-dimensional data processing module and a three-dimensional visual display module. A thermal imaging temperature monitoring module of the coal pile detection method and system is used as a temperature monitoring mode, and obtained full-field multi-angle thermal image temperature diagrams are converted and spliced through a thermal image temperature processing module. A material pile is scanned through a laser radar to obtain material pile point cloud data, and the data is sent to a three-dimensional material pile generation module to generate a material pile three-dimensional model. The data of the temperature processing module and the material pile three-dimensional model data are processed ...

Active dynamic compensation zero-flux current transformer

The invention discloses an active dynamic compensation zero-flux current transformer. The current transformer comprises a detection circuit and a signal output circuit, the detection circuit dynamically detects primary side input current, secondary current is generated through amplification and phase shift of an internal circuit, the secondary current demagnetizes the iron core to enable the iron core to reach a zero magnetic flux state, and the current is synchronously input to the signal output winding; and the signal output circuit converts the current of the detection winding into a voltage signal and outputs the voltage signal. Therefore, the detection circuit is simple, the number of required components is small, the reliability is high, and the manufacturing process is simple.

Phase displacement three-dimensional measurement system based on FPGA

The invention provides a phase displacement three-dimensional measurement system based on an FPGA, and relates to the technical field of three-dimensional measurement. Comprising a phase and signal-to-noise ratio calculation module, a phase unwrapping module, a phase correction module, a corresponding point matching module and a three-dimensional reconstruction module. The phase and signal-to-noise ratio calculation module is used for acquiring a phase main value of the grating image and solving the signal-to-noise ratio of each phase value; the phase unwrapping module obtains an image of an absolute phase value; the phase correction module is used for correcting the image with the absolute phase value; the corresponding point matching module is used for solving corresponding points with sub-pixel precision; the three-dimensional reconstruction module obtains three-dimensional coordinates of each point through a triangulation method and realizes output of the three-dimensional coordinates ...

Node composite beam final assembly method

The invention discloses a joint combination beam final assembly method, which optimizes the port form of a joint combination beam, the upper flange plate and the lower flange plate of the in-place joint combination beam port are long, the middle web is short, the whole joint combination beam port is in the shape of an inverted Chinese character'ao ', and in the land prefabrication stage of a deck sheet, the upper flange plate of the port is short, the lower flange plate is long, and the middle web is vertically centered. An upper flange plate and a lower flange plate of a composite beam port to be installed are short, a middle web plate is long, the whole port is in an inverted-T shape, the length of the upper flange plate and the length of the lower flange plate of the port are changed in the land prefabrication stage of a deck piece, and the middle web plate is vertically centered. During construction, after the composite beam with the joint to be installed is hoisted to the high altitude ...

METHOD FOR PREPARING 4,6-DIAMINO RESORCINOL HYDROCHLORIDE

Disclosed is a method for preparing 4,6-diamino resorcinol hydrochloride, which belongs to the organic chemical synthesis field. The method comprises: using a Bronsted acid and acetic anhydride as a new dioxime Beckmann rearrangement reaction system, subjecting same to an increased-temperature reaction and reduced pressure distillation so as to obtain residues and recover the solvent; subjecting the residues to warming and a reflux reaction with concentrated hydrochloric acid and SnCl2, to achieve an operation of hydrolysis; and further subjecting same to cooling, stirring and crystallization, suction filtration, hydrochloric acid washing and vacuum drying to prepare the 4,6-diamino resorcinol hydrochloride. The method has simple process steps, and uses readily available Bronsted acid and acetic anhydride; and the excess Bronsted acid and acetic anhydride in the reaction and the acetic acid produced during the reaction are recycled by reduced pressure distillation, thereby achieving reutilization ...

Electric turnover control device and method for vehicle cab and commercial vehicle

The invention discloses an electric turnover control device and method for a vehicle cab and a commercial vehicle, and relates to the field of automobiles, and the control device comprises a cab lifting switch, a cab wire drawing controller, a mask lock and a cab lifting device; the cab lifting switch is connected with the mask lock; the cab wire drawing controller is connected with the mask lock; and the mask lock is connected with a cab lifting device. When the cab is in the state, namely the cab does not turn over, the mask lock is in a closed state; when the lifting circuit is disconnected, the cab cannot turn over; when the cab needs to be turned over, the mask lock is controlled by controlling the cab lifting switch or the cab wire drawing controller, so that the mask lock is in an open state, the lifting circuit is closed, and the cab lifting device controls the cab to be turned over. The situation that a driver forgets to open the front face shield or the front face shield lock ...

USE OF MULTIFLORA GLYCOSIDE IN PREPARING ANTI-HYPOXIC DRUG

Provided is the use of multiflora glycoside in preparing an anti-hypoxic drug. A full body and cell level hypoxia model indicates that multiflora glycoside can significantly increase the survival time of a mouse with asphyxiant hypoxia, and has a significant protection effect on endothelial cell injury induced by hypoxia.

Wind -powered electricity generation formula portable power source

... 本实用新型公开了种风电式移动电源，包括主体（1）、扇叶（6）和三脚架（7）；扇叶为2?6片；主体安装在三脚架上；扇叶设置在主体的前端的转轴上；主体内设有发电机和锂电池；扇叶驱动发电机发电；发电机产生的电能存储在锂电池中；主体上设有指示灯（2）和USB接口（4）；锂电池通过升压电路与USB接口相连；三脚架具有三条管脚；每根管脚的末端设有作为管脚延长段的锈钢脚钉（9）；管脚末端还设有外螺纹；带内螺纹的橡胶套筒（8）旋装在管脚末端。该风电式移动电源易于实施，便携性好，功能丰富。 ...

Narrow-flow-channel three-dimensional impeller slotting welding method and narrow-flow-channel three-dimensional impeller

The invention discloses a narrow-runner three-dimensional impeller welding machining method and a narrow-runner three-dimensional impeller, and the narrow-runner three-dimensional impeller welding machining method comprises the steps that a blank is turned to form a wheel disc and a wheel cover; blades are milled on the wheel disc; a welding groove is milled in the wheel cover; and the wheel disc and the wheel cover are welded into a whole in a manual welding mode to form the impeller. Therefore, compared with an electric spark machining technology, the narrow-runner three-dimensional impeller is machined in a manual welding mode, the machining period is short, the machining cost is low, and compared with welding machining of a welding robot, welding conditions and welding parameters can be adjusted in real time according to deformation caused by welding in the welding process so as to meet the requirement of the current welding position; and therefore, the good welding effect is guaranteed ...

Plastic part manufacturing material pretreatment equipment

The invention belongs to the technical field of plastic pretreatment, and particularly relates to plastic part manufacturing material pretreatment equipment which comprises a bottom plate, a supporting plate is provided with a motor, the end of an output shaft extends out of the supporting plate to be provided with a universal transmission joint, the end of a transmission shaft is fixedly connected with a drying cylinder, and the sides, pointing to the circle center of the drying cylinder, of a plurality of inclined plates deflect clockwise. A supporting rod extending into the drying cylinder is fixedly connected to the middle of the cover plate, a through hole is formed in the supporting rod, a plurality of blowing holes communicating with the through hole are formed in the upper surface of the supporting rod, an arc-shaped sliding groove is formed in the fixing piece, one end of the supporting rod penetrates through the cover plate and the through groove to be connected with the arc-shaped ...

Relay protection homologous comparison method and device based on sampling time difference

The invention discloses a sampling time difference relay protection homologous comparison method and device. The method comprises the following steps: acquiring a plurality of physical quantities of sampling nodes which have homologous comparison conditions and are preset on relay protection equipment, the plurality of physical quantities being physical quantities collected by a plurality of sets of protection equipment; respectively filtering the plurality of physical quantities through a preset filtering method, and determining the waveforms of the plurality of filtered physical quantities; and comparing the plurality of physical quantity waveforms by using a homologous comparison method, and determining the state information of the sampling nodes of the plurality of sets of relay protection equipment. A process error caused by non-corresponding time is weakened through filtering based on time difference, so that primary elements with power fluctuation such as a traction line have homologous ...

Charging port assembly and vehicle

The invention relates to the field of vehicles, in particular to a charging port assembly and a vehicle, and aims to solve the problem that an existing charging port cover is large in size. To this end, the charging port assembly of the present invention comprises: a side wall outer plate, which is provided with a mounting port; the basin-shaped charging port sealing plate is arranged on the inner side of the mounting port and is fixedly and hermetically connected with the side wall outer plate; at least part of the charging seat is arranged in the basin cavity of the charging port sealing plate, the charging seat is located at the first end of the basin cavity, and the charging seat is used for being electrically connected with the connecting plug to charge the battery; the charging port cover assembly comprises a driving assembly, a mounting frame and a charging port outer plate, the mounting frame is mounted on the side wall outer plate or the charging port sealing plate, the driving ...

Preparation method of high-strength underwater adhesion type waste chrome leather scrap-based three-network hydrogel

The invention relates to a preparation method of high-strength underwater adhesion type waste chrome leather scrap-based three-network hydrogel. Sulfonic acid microgel is used as a first network, polyacrylamide is used as a second network, tannic acid modified waste chrome leather scrap hydrolysate is used as a third network, and the three-network hydrogel with high strength and underwater adhesion is constructed. Through multiple effects among three network macromolecular chain groups of the hydrogel, chromium in the waste chromium leather shavings is a crosslinking point provided by the hydrogel, so that high strength of the hydrogel is realized; based on the adhesion mechanism of tannic acid imitating mussel mucoprotein, the underwater adhesion of the hydrogel is realized. On one hand, a new thought is provided for high-value utilization of the waste chrome leather scraps; on the other hand, the development of functional hydrogel is promoted.

Automatic generation method for security code of integrated avionics system facing horizon operating system

The invention discloses a sky vessel operating system-oriented integrated avionics system security code automatic generation method, which comprises the following steps of: according to AADL ARINC653 attachment requirements, expressing software and hardware information of an IMA system by adopting AADL and expressing functional behaviors of the IMA system through heterogeneous components to obtain an IMA model; analyzing the IMA model through an AADL analysis module, converting model information into an abstract syntax tree and instantiating the abstract syntax tree to obtain a model instance syntax tree; the method comprises the following steps of: defining a corresponding conversion rule according to an API (Application Program Interface) requirement of a Tianvessel operating system, expressing the conversion rule by using a StringTemplate template engine, and generating a corresponding template file; key information is extracted from the model instance syntax tree according to the conversion ...

Mobile nest unmanned aerial vehicle inspection method and system

The invention provides a mobile nest unmanned aerial vehicle inspection method and system, and belongs to the technical field of electric unmanned aerial vehicles. The inspection method comprises the following steps: determining the electric quantity required by inspection of each to-be-inspected target according to the type of the to-be-inspected target; according to the battery capacity of the unmanned aerial vehicle, the return flight electric quantity threshold of the unmanned aerial vehicle, the consumed electric quantity of each to-be-inspected target, the consumed electric quantity of the unmanned aerial vehicle flying from one inspection target to the next inspection target, the seasonal coefficient and the relation coefficient of the actual flight time and the battery cycle index, the battery cycle index is calculated. The number of to-be-inspected targets capable of being inspected and recommended landing sites are obtained; according to the obtained number of the to-be-inspected ...

Account management method and device, computer equipment and storage medium

The invention relates to the technical field of data processing, and particularly discloses an account management method and device, computer equipment, a storage medium and a computer program product. The method comprises the following steps: acquiring a login state of an account of a second terminal, and when the login state of the account is logged in, taking the account as an online account; wherein the online state of the online account comprises an idle state and a non-idle state; acquiring a call request of a first terminal, distributing the call request to an online account with an idle online state, and changing the online state of the online account receiving the call request from the idle state to a non-idle state; and obtaining request feedback of the account to the call request, generating service data corresponding to the call request based on the call request and the request feedback, and storing the service data in a database. By adopting the method, the business processing ...

Numerical simulation method for towing anchor-anchor chain integrated installation penetration analysis

The invention relates to a numerical simulation method for towing anchor-anchor chain integrated installation penetration analysis, and belongs to the technical field of towing anchor-anchor chain numerical simulation, the method uses a CEL finite element calculation method in ABAQUS numerical analysis software, and the method comprises the following steps: S1, establishing a numerical calculation analysis model; s2, endowing each established model with a corresponding material attribute; s3, assembling a numerical calculation analysis model; s4, establishing a power display analysis step; s5, establishing interaction among the dragging anchor foundation model, the anchor chain model and the soil body model; s6, defining boundary conditions; s7, the material assignment of the hole unit is set to be empty, the soil body is endowed with the material attribute set in the step S2, and a crustal stress field is applied to the soil body; s8, performing grid division on the established numerical ...

Lower bin body of battery swap station and battery swap station

The invention provides a lower bin body of a battery replacing station and the battery replacing station. The lower bin body comprises a lower box body and a plurality of limiting beams. The lower box body is provided with a first cavity and a top hoisting opening communicated with the first cavity. All the limiting beams are arranged on the lower box body, all the limiting beams are sequentially arranged at intervals in the length direction of the lower box body, and a battery box limiting space is formed between every two adjacent limiting beams. According to the battery replacing station, the top hoisting opening is formed in the lower bin body, so that the battery box in the lower bin body can be hoisted through hoisting equipment, the limiting beams are arranged, the guiding and limiting effects are achieved, one battery box storage position corresponds to the position between every two adjacent limiting beams, and in the process that the hoisting equipment hoists or lowers the battery ...

Plastic waste recovery equipment

The invention belongs to the technical field of plastic recycling, and particularly relates to plastic waste recycling equipment which comprises a circular shell and a crushing mechanism in the circular shell, the crushing mechanism comprises two rotating shafts rotationally assembled in the circular shell, crushing rollers are fixed to the outer sides of the two rotating shafts, and the two crushing rollers are each provided with a plurality of linearly-distributed crushing gear rings; the multiple crushing gear rings on the two crushing rollers are arranged in a staggered mode, the crushing gear rings are provided with multiple crushing teeth distributed circumferentially, the rear ends of the two rotating shafts are connected with first gears, the two first gears are meshed with each other, and cleaning assemblies are arranged on the lower sides of the two crushing rollers. When the plastic parts are crushed and recycled, a tooth groove formed by a plurality of crushing teeth can be ...