Large surrounding rock stress measuring device and method based on fiber bragg grating displacement meter string

The invention discloses a large surrounding rock stress measuring device and method based on a fiber bragg grating displacement meter string. The device comprises displacement meters connected in sequence. The displacement meters comprise displacement sensing mechanisms and signal converting mechanisms, wherein the displacement mechanisms and the signal converting mechanisms are connected through signal transmission mechanisms. The displacement sensing mechanisms convert the displacement of the surrounding rock at the position where the displacement sensing mechanisms are mounted into signals capable of being transmitted through the signal transmission mechanisms, and then the dependent variable is converted according to the displacement. The signal converting mechanisms comprises display screens. The method includes the following steps that a mounting hole is formed in the surrounding rock in the surrounding rock stress measuring direction; corresponding numbers of displacement meters ...

Method for calibrating measurement value applied to singlechip without multiply instruction

The invention discloses a method for calibrating a measurement value applied to a singlechip without a multiply instruction, which comprises the following steps: (1) segmenting an area where the measurement value is positioned by adopting a nonlinear segmenting mode; and (2) calibrating the measurement value at each segmented linear area, namely accumulating multiple A/D sampling values and then shifting the sum to right for n times, acquiring the calibrated parameter measurement value through calculation, storing a calibration coefficient S by using two bytes, defining the high byte as SH, and defining the low byte as SL, wherein S = SH*256 + SL; and (3) accurately calibrating the parameter measurement value by adjusting the calibration coefficient S according to the standard measurement value of a standard instrument. The method improves the processing capability of the singlechip without the multiply instruction, avoids a floating-point number multiplication-division method for operation ...

Control circuit for outputting synchronous signals by using Spider8 data acquisition system

The invention discloses a control circuit for outputting synchronous signals by using a Spider8 data acquisition system, which comprises a 12-digit binary counter CD4040, an analog switch CD4051 and a frequency dividing coefficient selection connector; the 18th pin and 19th pin of the Spider8 data acquisition system are connected with the 1st and 2nd pins of a circuit board port; the circuit board port is connected with the input end of the binary counter CD4040; the output end of the binary counter CD4040 is respectively connected with the analog switch CD4051; the three-digit selection signal end of the analog switch CD4051 is connected with the frequency dividing coefficient selection connector; and the output end of the analog switch CD4051 is connected with a synchronous signal output port. The invention provides a control circuit for outputting synchronous signals by using the Spider8 data acquisition system, which can ensure accurate synchronization of samples during data exchange ...

Combined air flotation device unaffected by disturbance of air pipes

The invention relates to a combined air flotation device unaffected by the disturbance of air pipes, which comprises a one-dimensional air floatation shaft and at least two one-dimensional air floatation sleeves. The one-dimensional air floatation sleeves are sleeved on the one-dimensional air floatation shaft and are in sealing connection with a one-dimensional air storage sleeve, an air storagecavity is arranged between the one-dimensional air storage sleeve and the one-dimensional air floatation shaft, the axle center of the one-dimensional air floatation shaft is provided with an air inlet passage which is connected with a compression air inlet pipe and communicated with the air storage cavity, and the air storage cavity is provided with an air outlet which is communicated with air inlets of all the one-dimensional air floatation sleeves through connecting air pipes. The air flotation device also comprises a one-dimensional mounting seat, the one-dimensional air floatation shaft is ...

Three-dimensional air-floation follow-up device

The invention relates to a three-dimensional air-floation follow-up device, which comprises an upright post, a rotating shaft capable of rotating with zero friction, a long-distance linear guide rail and a hanging rope, wherein two air bearings are sheathed on the rotating shaft and installed on the upright post in the vertical direction; the lower end of the rotating shaft is positioned on the air float; the air float is installed on an air float supporting seat; the air float supporting seat is installed on the upright post; the rotating shaft is connected with the long-distance linear guide rail; a slide block is sheathed on the long-distance linear guide rail in a slideable way; the slide block is connected with a driving mechanism in a transmission way; the slide block is connected with a short-distance air-floating guide rail; an air storage sleeve of the short-distance air-floating guide rail is fixedly connected with a fixed pulley seat; the fixed pulley seat is fixedly connected ...

Two-dimensional plane air-floatation zero-gravity cradle

The invention relates to a two-dimensional plane air-floatation zero-gravity cradle which comprises two long-distance air-floatation linear guide rails, a Y-axis air-floatation axle, a Y-axis air-floatation sleeve and a hanging rope, wherein at least two X-axis air-floatation sleeves are sleeved on an X-axis air-floatation axle, the X-axis air-floatation sleeves are all connected with an air storage sleeve in a sealing way, an installing slide block is slidably arranged on the long-distance air-floatation linear guide rails and is connected with a drive mechanism in a drive way, the slide block is fixedly connected with the X-axis air-floatation axle, an air storage cavity is arranged between the air storage sleeve and the X-axis air-floatation axle, the axle center of the X-axis air-floatation axle is provided with an air inlet channel which is communicated with the air storage cavity, the air storage cavity is provided with an air outlet which is communicated with an air inlet of each ...

Bury case becomes casing waterproofly

The utility model discloses a bury case becomes casing waterproofly, bury the formula case becomes the shell main part with including, bury the formula case and become the shell main part and constitute by case lid and low pressure compartment, the low pressure compartment is perpendicular setting in the case lid bottom to weld with the case lid, the top of case lid is equipped with four water tanks that are the symmetric distribution, the water tank is perpendicular setting on four angles of case lid to pass through the screw fixation with the case lid, the top of water tank is equipped withthe inlet opening, one side of water tank is equipped with the connecting pipe, the connecting pipe runs through the lateral wall of setting at the water tank to link up with the water tank, this kindof bury case becomes casing waterproofly is equipped with the inlet opening, and during rainwater accessible inlet opening got into the water tank, the rainwater in the water tank discharged throughthe ...

Distributed authentication/charge server system and its implementation method

A distributed authentication/charge server system is composed of the basic radius server directly connected to remove access server for implementing the client-orientated receiving/transmitting of data packets, encoding/decoding data packets and forwarding data packets to other servers, in-line user manager connected to said basic Radius server and able to perform individual logic processing function, IPDR collector connected to more charge servers, and multiple authentication/authorization servers. Its advantages include hot connection/dis-connection of services, in-line upgrade, and high scalability and stability.

Qualitative analysis detection method for low polarity sugar-reducing chemical medicament in traditional Chinese medicine

The invention discloses a qualitative analysis detection method for illegally mixed high-polar chemical anti-diabetic components in anti-diabetic traditional Chinese medicine products. The method comprises the following steps that: 1) high efficient liquid phase chromatography conditions: an ammonium acetate-triethylamine-acetonitrile moving phase system and a C18 chromatographic column with certain specification are used, the wavelength is detected by ultraviolet, and the flow rate is 1.0ml/min; 2) analysis result: glibenclamide, glipizide, gliclazide, glimepiride, gliquidone, repaglinide, nateglinide, rosiglitazone and pioglitazone hydrochloride can realize the complete separation; 3) result judgment: when retention time of a chromatographic peak in an anti-diabetic traditional Chinese medicine product is consistent with that of anti-diabetic medicine in the step 2) and the apparent absorption is shown out, which indicate that the anti-diabetic medicine is contained in the sample tobe ...

Box-type transformer

The box-type transformer comprises a transformer body, the top of the transformer body is fixedly connected with a disc, the disc is provided with a through groove and two grooves, the inner wall of the through groove is fixedly connected with two fans, the disc is sleeved with a filter ring rotationally connected with the disc, and the filter ring is fixedly connected with the through groove. The inner wall of the through groove communicates with an air inlet pipe, the bottom end of the air inlet pipe penetrates through the disc and communicates with the transformer body, the inner walls of the two grooves communicate with air outlet pipes, the bottom ends of the two air outlet pipes penetrate through the disc and communicate with the transformer body, and a driving structure is arranged at the top of the disc. According to the transformer, the effect of automatically cleaning the filtering ring used for filtering air can be achieved, then the situation that the filtering ring is blocked ...

Composite photo-thermal catalyst for wastewater treatment and preparation method thereof

The invention discloses a composite photo-thermal catalyst for wastewater treatment and a preparation method thereof, and belongs to the technical field of semiconductor photo-thermal catalytic reaction, and the preparation method comprises the following steps: (1) dissolving a zinc source compound, an indium source compound and a sulfur source compound in a mixed solution of deionized water and glycerol, stirring, and reacting at 100-200 DEG C for 8-16 hours to obtain a mixed solution; zn2In2S5 is obtained, and then the Zn2In2S5 is washed and dried; and (2) dispersing the Zn2In2S5 prepared in the step (1) into deionized water, adding GO, carrying out ultrasonic treatment, then spraying the mixed solution onto a carbon felt, and calcining to obtain rGO/Zn2In2S5-CF.

Automatic lifting mechanism for punching and feeding ball cage type retainers

The invention discloses an automatic lifting machine for punching and feeding ball cage type retainers. The lifting machine is capable of feeding the ball cage type retaining racks one by one and accurately controlling the feeding time interval between two adjacent ball cage type retainers. The automatic lifting machine comprises a lifting bracket, an upper gear fixing plate, a lower gear fixing plate, an upper synchronization gear, a lower synchronization gear, a gear driving motor, a chain, two linear guide rails, a feeding channel, a lifting channel and a sliding block, wherein the lifting bracket is formed by an upper base plate, a lower base plate and two aluminum profiles which are parallelly mounted between the upper base plate and the lower base plate. According to the lifting machine, the gear driving motor is used for driving the chain to drive; the sliding block is driven to move upwards in the vertical direction by the driving of the chain so as to drive the lifting channel ...

Air-float magneto motive friction-free suspension device

The utility model relates to an air-floated magnetic motive frictionless suspending device, comprising a frame, a mounting case, a mobile beam, a plurality of guiding bars, a main rod, an air floatation system and a magnetic motive system, wherein, the air floatation system comprises two frictionless cylinders and two air storage tanks of same size; the magnetic motive system comprises a moving coil with a long stroke and the iron core of a exciter; the mounting case is fixed in the middle part of the frame, and a lower mounting plate is positioned in the lower part of the frame; a top plate and a bottom plate are positioned on the mounting plate; two small air bearings for installing the guide bars and a large air bearing for installing the main rod are positioned on the top plate; a large air bearing for installing the guide bars is positioned below the bottom plate; two frictionless cylinders are positioned symmetrically above the mounting plate under the frame; the cylinder rod of the ...

Process for integrating pulping and bleaching by using ultrasonic wave

The invention discloses a process for integrating pulping and bleaching by using ultrasonic wave, which relates to the technical field of papermaking and pulping. The process comprises the following steps: adding water to raw materials to obtain a raw material liquid which has a concentration of 3%-30%, and adding an ultrasonic wave assistant enhanced additive which is 0.1%-1.0% of the raw material liquid weight; then heating the raw material liquid to 50 DEG C-180 DEG C and turning on an ultrasonic generator, wherein the ultrasonic power is 0.25-1 kilowatt per cubic meter of the raw materialliquid; the frequency is 15-80KHz; and the ultrasonic wave acts on the raw material liquid intermittently for 1-5 hours. With the action of ultrasonic wave, fiber and lignin in the raw material are separated to form bleached slurry; and carrying out processes such as selecting, purifying, solvent extracting and the like after discharging. The invention has the beneficial effects that: carrying out pulping ...

Oil-immersed amorphous transformer

The oil-immersed amorphous transformer comprises a transformer body, two supporting rods are fixedly connected to the bottom of the transformer body, buffer rods fixedly connected with the two supporting rods are inserted into the bottom ends of the two supporting rods in a penetrating mode, and four sliding blocks are inserted into the outer sides of the two supporting rods in a penetrating mode; two mounting seats and a mounting plate are arranged below the transformer body, four sliding grooves matched with the sliding blocks are formed in the inner walls of the two mounting seats, one sides of the eight sliding blocks make contact with the inner walls of the eight sliding grooves correspondingly, and the other sides of the eight sliding blocks make contact with two buffer rods correspondingly. According to the transformer, vibration reduction treatment can be conducted on the transformer body in the up-down direction, the left-right direction and the front-back direction, the situation ...

Two-dimensional gas floating follow-up device for supplying constant suspension force

The invention relates to a two-dimensional gas floating follow-up device for supplying constant suspension force, which comprises a gas floating shaft and gas floating sleeves, wherein the gas floating sleeves are sleeved on the gas floating shaft; at least two gas floating sleeves are arranged; the gas floating sleeves are hermetically connected with a gas storing sleeve; a gas storing cavity is formed between the gas storing sleeve and the gas floating shaft; a shaft center of the gas floating shaft is provided with a gas inlet channel; the gas inlet channel is connected with a compressed gas inlet pipe and is communicated with the gas storing cavity; the gas storing cavity is provided with a gas outlet; the gas outlet is communicated with the gas inlet of each gas floating sleeve through a connecting gas pipe; the gas floating device also comprises a slide block and a guide rail; the gas floating shaft is installed on the slide block; the slide block is installed on the guide rail in ...

Chain-chip automatic sorting array machine

The invention relates to a chain-chip automatic sorting array machine, comprising a frame and a vibrating screening loading machine used for arraying chain-chips which are to be sorted in sequence. The vibrating screening loading machine is provided with a chain-chip profile adjusting channel for pushing out the chain-chips in sequence. The chain-chip profile adjusting channel is connected to a chain-chip sorting mechanism. The chain-chip sorting mechanism comprises a sorting chamber. An entrance of the sorting chamber is connected to the chain-chip profile adjusting channel. The sorting chamber comprises a front chain export, a rear chain export and a back material export. A trigger sensor is arranged at the entrance of the sorting chamber. The chain-chip sorting mechanism also comprisesa vision sensor and a sorting control module. The sorting chamber is in the visual range of the vision sensor. Both the front chain export and the rear chain export are connected to an aggregating area.

Charging control circuit of quick electrical bicycle charging station

The invention relates to a charging control circuit of a quick electrical bicycle charging station, comprising a charging power supply anode, a charging power supply cathode, a charging relay and a controlled switching tube, wherein the charging power supply anode is connected with a normally open contact of the charging relay in series; the normally open contact is connected with an anode end of a charged battery pack; a coil of the charging relay is connected with a first charging control end through a controlled triode; a control pole of the controlled switching tube is connected with a second charging control end; the charging power supply cathode is connected with an electronic switch of the controlled switching tube in series; the electronic switch is connected with a cathode end of the charged battery pack; the anode end of the charged battery pack is provided with a voltage sensor; and the voltage sensor, the first charging control end and the second charging control end are all ...

Friction-free air floating guide rail for long distance

The invention relates to a friction-free air floating guide rail for long distance, which comprises an air floating sleeve and an air floating shaft; the air floating sleeve is sleeved on the air floating shaft; the air floating sleeve comprises a left air floating sleeve and a right air floating sleeve, the left air floating sleeve is sleeved on the left side of the air floating shaft, and the right air floating sleeve is sleeved on the right side of the air floating shaft; the middle part of the air floating shaft is provided with a connecting seat, the connecting seat is connected with a bearing guiding piece, and the bearing guiding piece follows up a movement piece; an air flowing device also comprises a long-distance linear guide rail, a main slider is arranged on the long-distance linear guide rail in a sliding way, and the main slider is fixedly connected with the left and the right air floating sleeves; and a main air pipe is connected with the main slider, the main air pipe is ...

Qualitative analysis detection method for high polarity sugar-reducing chemical medicament in traditional Chinese medicine

The invention discloses a qualitative analysis detection method for illegally mixed high-polar chemical anti-diabetic components in anti-diabetic traditional Chinese medicine products. In the method, a moving phase is a phosphate-acetonitrile moving phase system; the flow rate is between 0.8 and 1.2ml/min; a chromatographic column adopts a Hypersil amino chromatographic column, the column temperature is between 20 and 45 DEG C, metformin hydrochloride, phenformin hydrochloride, acarbose and voglibose can realize the complete separation. When retention time of a chromatographic peak in an anti-diabetic traditional Chinese medicine product is consistent with that of anti-diabetic medicine and the apparent absorption is shown out, which indicate that the anti-diabetic medicine is contained in the sample to be tested. The method has the advantages of quickness, simplicity, convenience, high sensitivity, strong specialization, broad coverage and so on.

Undisturbed air-flotation magnetomotive suspension device based on double electromagnetic forces

The invention relates to an undisturbed air-flotation magnetomotive suspension device based on double electromagnetic forces. In the device, an installation frame is fixed in the middle of a chassis, a chassis lower installing plate is fixed in the lower part; two small air bearings with installation guide bars and a big air bearing with a main rod are arranged on the top plate of the installation frame; a big air bearing with a main rod is arranged under the bottom plate of the installation frame; two symmetrical frictionless cylinders are arranged on the chassis lower installing plate, the piston rods of the frictionless cylinders are connected with a moving beam; the moving beam comprises two symmetrical parts, a main rod and two guide bars are arranged on the moving beam, a magnetomotive system contains two long-stroke moving coils and two shaker iron cores, the shaker iron cores are arranged between the bottom plate and top plate of the installation frame, and the two shaker iron cores ...

Method for measuring friction torque of ferrofluidic seal shafts under thermal vacuum environment

The invention relates to a method for measuring the friction torque of ferrofluidic seal shafts under the thermal vacuum environment. Two ferrofluidic seal shafts are coaxially arranged at the two sides of a vacuum tank which is internally provided with a special shaft, the two ends of the special shaft is connected with the ferrofluidic seal shafts; and parts of the two ferrofluidic seal shafts which are outside the vacuum tank are respectively provided with a torque sensor. The torque values of the two torque sensors are simultaneously acquired, and the D-value of an input shaft and an output shaft is the total friction torque of the two ferrofluidic seal shafts which serve as a whole under the thermal vacuum environment; and the output shaft is replaced, three groups of friction torquevalues are obtained by measuring for three times with the same method, and the friction torque value of each ferrofluidic seal shaft can be obtained by simple mathematical computation. The invention provides ...

Air-float magneto motive friction-free suspension device

Transformer switch cabinet with good heat dissipation effect

The invention discloses a transformer switch cabinet with a good heat dissipation effect, and belongs to the technical field of switch cabinets, the transformer switch cabinet comprises a cabinet body, the inner bottom wall of the cabinet body is fixedly connected with a water tank, the interior of the cabinet body is fixedly connected with a fixed box, the top of the fixed box is provided with a group of air inlet holes, and the top of the water tank is provided with an air pump located at the bottom of the fixed box. The output end and the input end of the air pump are fixedly connected with a three-way pipe and a fixing pipe correspondingly, the top end of the fixing pipe penetrates into the fixing box, the top end of the three-way pipe penetrates through and extends to the top of the water tank, hoses are installed on the left side and the right side of the water tank correspondingly, and the ends, away from the water tank, of the hoses penetrate through the cabinet body and extend ...

Combustion coal desulfurizing agent

Amorphous alloy distribution transformer

The utility model discloses an amorphous alloy distribution transformer, the device comprises a device body, the device body comprises with the roof that sets up at this box top at the box on one sideof the the device body the setting, this kind of amorphous alloy distribution transformer, the inside core structure of current transformer adopts amorphous alloy material to make, thereby the technique that makes the no -load loss of current transformer compare has in the past reduced greatly, thereby collimating objective lens's utilization efficiency has been improved, also further saving theresource, reducing production cost, this kind of transformer is equipped with the component that can supply mechanical overhead hoist handling, can make things convenient for the removal of equipment,thereby further make things convenient for the installation of equipment, the efficiency of the installation of transformer equipment is improved, this kind of transformer is equipped with one deck protection ...

Pulling and discharging device and pulling and discharging method thereof

The invention discloses a pulling and discharging device and a pulling and discharging method thereof. The pulling and discharging device is used for pulling and discharging a seal cover on an oil rail nozzle of an oil rail piece and comprises an oil rail piece locating component and a jack catch locating component, wherein the oil rail piece locating component comprises a first locating groove plate and a second locating groove plate, the first locating groove plate and the second locating groove plate are combined for forming an oil rail piece locating groove used for installing the oil rail piece; the jack catch locating component comprises a jack catch vertical locating piece and a jack catch horizontal locating piece which is combined with the jack catch vertical locating piece, and a jack catch combined with the seal cover is arranged on the jack catch vertical locating piece. The pulling and discharging efficiency of the seal cover of the oil rail nozzle can be improved and the oil ...

特性齐全的调制解调器用数据接入装置

... 一种用于把调制解调器连接到公用电话交换网(PSTN)的特性齐全的数据接入装置(DAA)，其中包括桥接电流环路电路、线路忙检测电路、摘机继电器、环路电流侦测电路和分机/远端事件检测器电路。摘机继电器与电流环路电路串联，以使DAA能在调制解调器处于挂机状态时检测外部摘机和挂机事件。DAA构成即使在调制解调器和与调制解调器共用线路连接器的送受话器都处于挂机状态也检测某一位置的分机电话的摘机状态和后续挂机状态。DAA还可即使在调制解调器处于摘机状态时也检测分机电话的摘机状态。此外，DAA可检测发起呼入的远端电话装置何时挂机。 ...

Method for measuring friction torque of ferrofluidic seal shafts under thermal vacuum environment

The invention relates to a method for measuring the friction torque of ferrofluidic seal shafts under the thermal vacuum environment. Two ferrofluidic seal shafts are coaxially arranged at the two sides of a vacuum tank which is internally provided with a special shaft, the two ends of the special shaft is connected with the ferrofluidic seal shafts; and parts of the two ferrofluidic seal shafts which are outside the vacuum tank are respectively provided with a torque sensor. The torque values of the two torque sensors are simultaneously acquired, and the D-value of an input shaft and an output shaft is the total friction torque of the two ferrofluidic seal shafts which serve as a whole under the thermal vacuum environment; and the output shaft is replaced, three groups of friction torque values are obtained by measuring for three times with the same method, and the friction torque value of each ferrofluidic seal shaft can be obtained by simple mathematical computation. The invention provides ...

Combined air flotation device unaffected by disturbance of air pipes

The invention relates to a combined air flotation device unaffected by the disturbance of air pipes, which comprises a one-dimensional air floatation shaft and at least two one-dimensional air floatation sleeves. The one-dimensional air floatation sleeves are sleeved on the one-dimensional air floatation shaft and are in sealing connection with a one-dimensional air storage sleeve, an air storage cavity is arranged between the one-dimensional air storage sleeve and the one-dimensional air floatation shaft, the axle center of the one-dimensional air floatation shaft is provided with an air inlet passage which is connected with a compression air inlet pipe and communicated with the air storage cavity, and the air storage cavity is provided with an air outlet which is communicated with air inlets of all the one-dimensional air floatation sleeves through connecting air pipes. The air flotation device also comprises a one-dimensional mounting seat, the one-dimensional air floatation shaft is ...

Ultra-low frequency modal test suspension system

The invention discloses an ultra-low frequency modal test suspension system, comprising a modal test suspension device and a monitoring computer for realizing remote detection and monitoring. The monitoring computer is connected with an Ethernet router; an air tank and a pneumatic actuator are connected with an air pressure control MPU (Microprocessor Unit); a suspension follower is connected with a linear displacement coder, a suspension force sensor and an electromagnetic force sensor; an electromagnetic actuator is connected with a power amplifier; the linear displacement coder is connected with a CPLD (Complex Programable Logic Device) processing module which is connected with an electromagnetic force control MPU; the suspension force sensor and the electromagnetic force sensor are connected with the electromagnetic force control MPU; the air pressure control MPU and the electromagnetic force control MPU are both connected with a modal suspension control MPU; and the modal suspension ...

Neural sequence data privacy protection circuit and method

The invention discloses a neural sequence data privacy protection circuit and method, and belongs to the technical field of information security. According to the invention, high-entropy modulation is carried out on original neural sequence data (low-entropy data) through a true random number circuit and random slot time slot insertion, and reversible or irreversible desensitization protection can be carried out on the original neural sequence data by randomly or manually designating and selecting part of sensitive data according to the protection degree; meanwhile, for reversible desensitization protection neural data, original neural data signals can be recovered through desensitization reverse processing. The circuit is designed for effectively protecting digital neural sequence data after sampling and digital quantization of the neural electric sensor, and the circuit hardware is simple and effective to realize. The problem of lack of a privacy protection circuit for biological neural ...

Follow-up type air-floating magneto-motive friction-free suspension device

Jig for removing glue on surface of steel shaft of satellite machine equipment

The invention provides a jig for removing glue on the surface of a steel shaft of satellite machine equipment, which is used for quickly removing residual glue and foreign matters in the rotating process of the steel shaft and ensuring that the quality of a die-cut product is stable and reliable. The device comprises a connecting rod; each side cutter body comprises a cutter holder and a cutting edge part; the mounting rack on each side comprises a rack body and a connecting shaft, one end of the rack body is fixedly connected with the connecting shaft, and a mounting hole is formed in the other end of the rack body; the two ends of the connecting rod in the length direction are inserted into the mounting holes of the frame bodies on the corresponding sides respectively, positioning hole sets are formed in the two ends of the connecting rod in the length direction respectively, and the tool apron is fixedly installed in the positioning hole sets through the tool bodies on the sides through ...

Undisturbed air-flotation magnetomotive suspension device based on double electromagnetic forces

The invention relates to an undisturbed air-flotation magnetomotive suspension device based on double electromagnetic forces. In the device, an installation frame is fixed in the middle of a chassis, a chassis lower installing plate is fixed in the lower part; two small air bearings with installation guide bars and a big air bearing with a main rod are arranged on the top plate of the installation frame; a big air bearing with a main rod is arranged under the bottom plate of the installation frame; two symmetrical frictionless cylinders are arranged on the chassis lower installing plate, the piston rods of the frictionless cylinders are connected with a moving beam; the moving beam comprises two symmetrical parts, a main rod and two guide bars are arranged on the moving beam, a magnetomotive system contains two long-stroke moving coils and two shaker iron cores, the shaker iron cores are arranged between the bottom plate and top plate of the installation frame, and the two shaker ironcores ...

Efficient and low-cost downward drift cemented filling mining device and implementation method

The invention discloses an efficient and low-cost downward drift cemented filling mining device and an implementation method, relates to the technical field of downward drift cemented filling, and aims to solve the problems that the filling cost is too high and the filling amount is judged during filling. According to the efficient and low-cost downward drift cemented filling mining method, a segmented along-vein transportation roadway, a mining area slope ramp, a draw shaft, an air return connection roadway and an air return gate roadway of a mining preparation project are included, filling roof contact is carried out in drift filling twice or multiple times, and high-strength filling is carried out within a certain height range of the bottom of a drift. And the upper part of the high-strength filling body is in roof contact with the low-strength filling body as a second-layer one-step recovery access road recovery top plate. And after the first layered ore body is completely stoped and ...

Air flotation device following one-dimensional motion trail of lifting point at overlength distance without being influenced by air pipe disturbance

The invention relates to an air flotation device following a one-dimensional motion trail of a lifting point at an overlength distance without being influenced by air pipe disturbance, comprising an air flotation shaft, air flotation sleeves and a guide track, wherein the air flotation sleeves are sleeved on the air flotation shaft, and at least two air flotation sleeves are all hermetically connected with an air storage sleeve; the air storage sleeve is connected with a lifting rope; the lifting rope moves along with a moving part; the guide track is slidably provided with a slide block; theslide block is fixedly connected with the air flotation shaft; an air storage cavity is positioned between the air storage sleeve and the air flotation shaft; the shaft center of the air flotation shaft is provided with an air inlet passage; the air inlet passage is connected with a compressed air inlet pipe and is communicated with the air storage cavity; the air storage cavity is provided with an ...

Device and method for fixing insulation board by using template pull rod mounting combined limiting piece

The invention discloses a device and a method for fixing an insulation board by using a template pull rod to mount a combined limiting piece, and aims to solve the problems that a complete set of combined pieces used in building insulation structure integration in the prior art is complicated in form and high in manufacturing cost, an insulation layer is easy to crack and fall off, and the energy consumption loss of a building is increased due to a heat bridge generated by the limiting piece. The device comprises a combined limiting piece used for fixing the heat preservation plate, a first fixing disc, a second fixing disc and a middle section pipe are adopted on the two sides of the heat preservation plate to serve as limiting and fixing stress components, a second sleeve penetrates through the first fixing disc, the first sleeve and the second fixing disc, a pull rod is arranged on the inner side of the second sleeve in a sleeving mode, and a firm whole is formed after assembling and ...

Fine adjustment jig for etching sheet

The invention provides a fine tuning jig for an etching sheet, which enables the etching sheet to be finely tuned in front, back, left and right positions and ensures the dimensional accuracy of a punched product. An inner groove is formed in the center of the surface of the lower portion of the hardware die holder. The etching sheet comprises an etching sheet body and a lower convex cutting die; and a plurality of slide blocks. Etching piece positioning holes are formed in the positions, corresponding to the four corners of the etching piece, of the inner groove respectively, positioning holes are formed in the four corners of the etching piece respectively, at least one sliding block is arranged on each of the four edges of the inner groove, and the inner surfaces of the sliding blocks are tightly attached to the outer edge of the etching piece. Fastening screws penetrate through the positioning holes and then are fixedly installed in the etching piece positioning holes respectively, ...

Rzeppa universal joint holder automatic lifting device

The utility model discloses a holder automatic lifting mechanism realizes that the full -automatic of holder promotes one by one, including feed arrangement, lifting platform, discharge apparatus, promotion track and driving motor, the utility model discloses simple structure is compact, realizes through simple mechanical structure that the feeding one by one of rzeppa universal joint holder and short distance promote, and degree of automation is high, has reduced labour's consumption.

Method for processing lead-zinc sulfide mixed ores by using normal-pressure oxygen-rich leaching

The invention relates to a method for processing lead-zinc sulfide mixed ores by using normal-pressure oxygen-rich leaching, which comprises the following steps: adding water into the lead-zinc sulfide mixed ores to carry out wet ball-milling; feeding oxygen into ore pulp obtained by ball-milling; adding the obtained object into sulfuric acid with a concentration of 120-170-g/L, and stirring for reacting; carrying out sulfur flotation on a mixed liquid obtained by reacting; and carrying out solid-liquid separation on the obtained product. The method disclosed by the invention is small in investment, low in energy consumption, economic in slag material processing, and high in comprehensive recovery rate.

Triphase combined type mutual -inductor

The utility model discloses a triphase combined type mutual -inductor, including mutual -inductor insulating casing and base cross bar, mutual -inductor insulating casing and base cross bar pass through screw fixed connection, mutual -inductor insulating casing's surface is equipped with the recess, just recess and mutual -inductor insulating casing fixed connection, the inside of recess is equipped with a plurality of output port, just output port sets up with the recess is perpendicular, and be " one " word evenly distributed, this kind of triphase combined type mutual -inductor, insulatingpad has been installed to bottom at fixed diaphragm, can effectually prevent to electrocute, simultaneously also can be through the very objective numerical value of observing inside humidity of mutual -inductor insulating casing and temperature of display screen, because these data can influence the life of mutual -inductor, notice humidity and temperature when using as far as possible, then canthe ...

Frictionless air flotation device used for following moving trace of suspension centre in extra-long distance

The invention provides a frictionless air flotation device used for following a moving trace of a suspension centre in an extra-long distance. The frictionless air flotation device comprises an air flotation shaft and an air flotation sleeve, wherein the air flotation sleeve is sleeved on the air flotation shaft; the air flotation sleeve is connected with a suspension rope; and the suspension rope moves together with a moving piece. The frictionless air flotation device also comprises a guide rail, wherein a sliding block is moveably arranged on the guide rail; and the sliding block is fixedly connected with the air flotation shaft. The frictionless air flotation device used for following the moving trace of the suspension centre in the extra-long distance has the advantages of lowering requirements on coaxiality machining accuracy, lowering the requirements on flexural rigidity, reducing cost, improving the reliability and maintainability, along with convenient transportation, installation ...

Simulator for monitoring generation of nitrous oxide in process of aerobic biological treatment of sewage

The invention discloses a simulator for monitoring generation of nitrous oxide in a process of aerobic biological treatment of sewage. According to the technical scheme, the simulator is characterized by comprising a reaction tank and a seal cover on the reaction tank, wherein the seal cover is provided with a sample inlet and a gas sampling opening; the gas sampling opening is connected with a gaseous nitrous oxide monitoring system; the reaction tank is internally provided with a dissolved nitrous oxide monitoring system, a dissolved oxygen control system, a pH control system and a temperature control system. The simulator can be used for monitoring the generation of N2O in the process of aerobic biological treatment of sewage and precisely measuring the generation quantity and variation principle of N2O in a reaction, and is suitable for research on the influences to the generation of N2O under environmental conditions of load of pollutants, dissolved oxygen, pH value, temperature and ...

Scraper jig for stripping narrow material

According to the scraper jig for stripping the narrow material, waste is discharged through the oblique angle, it is guaranteed that a product cannot be brought up to move during stripping, and the waste discharging efficiency and the product quality are guaranteed. The positioning device comprises fixing blocks on the two sides, and each positioning block comprises a production line positioning hole and shaft insertion holes in the two ends; a first connecting shaft; a second connecting shaft; a plurality of groups of pressing rollers; and a blade; the fixing blocks on the two sides are arranged on the two sides of the production line in a staggered mode relative to the production line, the axial positions of the fixing blocks do not coincide, the two ends of the first connecting shaft are inserted into the first end shaft inserting holes of the corresponding fixing blocks respectively, and the two ends of the second connecting shaft are inserted into the second end shaft inserting holes ...

Negative pressure soil pick -up equipment

The utility model discloses a negative pressure soil pick -up equipment, include: remove the support body, install move the sealed box on the support body, arrange a plurality of supports in it sealed box wall is used for reinforcing the cross brace rod of sealed box, with sealed box intercommunication makes the internal portion of seal box produce the soil pick -up cylinder of negative pressure, with the sewage suction pipe way of sealed box intercommunication, be used for external foul solution suction seal box when seal box internal portion produces the negative pressure in. The utility model discloses simple structure, easy operation can clear away the foul solution totally in in short -term.

Electrode probe for detecting electroencephalogram and dry electrode unit applying electrode probe

The invention provides an electrode probe for detecting an electroencephalogram and a dry electrode unit applying the electrode probe. According to the electrode probe, an anti-oxidation material such as Ag/AgCl, gold and a titanium alloy is plated on the surface of a probe head, so that the probe head can be prevented from oxidization; meanwhile, the biocompatibility of the electrode is increased; a material which has a nano effect and good biocompatibility, such as polypyrrole graphene, is modified on the surface, so that the stability and sensitivity of detection can be further improved.

Follow-up type air-floating magneto-motive friction-free suspension device

Device for torsion experiment rotation characteristic test in thermal vacuum environment

A device for torsion experiment rotation characteristic test in a thermal vacuum environment comprises a shift rod device, an indexing plate, a connecting spline, an installation platform, a thermal vacuum tank and the like, wherein the installation platform is fixed in the thermal vacuum tank, a tested piece is fixed on the installation platform, the tested piece is connected with a tested piece output shaft, the tested piece output shaft is connected with a drive shaft through the connecting spline, the drive shaft passes through the thermal vacuum tank to be led out of the tank, the connecting spline is connected with the shift rod device, and the shift rod device is installed in the thermal vacuum tank. The shift rod device is adopted for controlling separation and combination between the tested piece output shaft and the drive shaft in the tank from outside the tank, the rotation characteristics of the tested piece output shaft can be precisely obtained outside the tank through the ...

Preparation method of zinc oxide visible-light-induced photocatalyst

The invention discloses a preparation method of a zinc oxide visible-light-induced photocatalyst. The preparation method comprises the following steps: (1) mixing 30mL of propylene glycol and 30mL of deionized water to obtain a mixed solution A; (2) adding 2mmol of Zn(CH3COO)2.2H2O into the mixed solution A, and completely dissolving to obtain a mixed solution B; (3) adding 2mmol of NaWO4 into the mixed solution B to obtain a mixed solution C; (4) adding 0.75-1.25g of sodium dodecyl benzene sulfonate into the mixed solution C to obtain a mixed solution D; (5) transferring the mixed solution D to a reaction kettle, maintaining for 6 hours at 180 DEG C, naturally cooling the solution to room temperature after reacting, filtering, washing the solution by respectively using the deionized water and ethanol for three times, and then drying for 5 hours in a constant-temperature drying box at 80 DEG C to prepare a rod-like zinc oxide nano visible-light-induced photocatalyst of which the particle ...

Device and method for detecting pocket holes of double-camera universal joint holder

The invention discloses a device for detecting pocket holes of a double-camera universal joint holder, and the device is used for detecting the precision of the pocket holes of the double-camera universal joint holder quickly and conveniently. The device comprises a feeding mechanism, a clamping platform, a clamping system, a cylinder clamping system, a detection system, and a discharging apparatus. The detection system comprises a first camera and a second camera, wherein the first and second cameras are used for image photographing and the detection of the pocket holes is carried through the technology of image recognition. The device is simple and compact in structure, is low in production cost, can detect the precision of the pocket holes of the double-camera universal joint holder one by one through image recognition, is high in detection precision, is high in automation degree, and saves the labor force. The device is suitable for the detection of double-camera universal joint holders ...

Novel powerful confinement flow controllable polishing device

The invention discloses a novel powerful confinement flow controllable polishing device which comprises a nozzle sheath moveable mechanism, a gap control mechanism, a grinding particle flow input base, a pre-pressing system and a fixing plate, wherein the nozzle sheath moveable mechanism is mounted on the fixing plate which is vertically arranged through a straight line bearing; the grinding particle flow input base sleeves the nozzle sheath moveable mechanism and is fixedly mounted on the fixing plate through a fixing bolt; the pre-pressing system is mounted on the top of the nozzle sheath moveable mechanism; the gap control system is used for monitoring the moving distance of the nozzle sheath moveable mechanism; the nozzle sheath moveable mechanism comprises a grinding particle flow straight tube, a nozzle and a nozzle sheath which are arranged vertically. The novel powerful confinement flow controllable polishing device is simple and compact in structure and low in production cost, ...

Air flotation device following motion trail of lifting point at overlength distance without being influenced by disturbing force of air tube

The invention relates to an air flotation device following the motion trail of a lifting point at an overlength distance without being influenced by the disturbing force of an air tube, comprising an air flotation shaft, an air flotation sleeve and a guide track, wherein the air flotation sleeve is sleeved on the air flotation shaft and comprises a left air flotation sleeve and a right air flotation sleeve; the left air flotation sleeve is sleeved at the left side of the air flotation shaft, and the right air flotation sleeve is sleeved at the right side of the air flotation shaft; the middleof the air flotation shaft is provided with a lifting bed; the lifting bed is connected with a lifting rope; the lifting rope moves along with a motion member; a slide block is slidably arranged on the guide track and is fixedly connected with the left air flotation sleeve and the right air flotation sleeve; the slide block is connected with a main air tube; the main air tube is communicated witha left ...

Protection device of externally-hung transformer

The invention discloses an externally-hung transformer protection device which comprises an installation base, two parallel guide rails are installed on the installation base, sliding grooves are formed in the two guide rails, a protection cover is installed between the two sliding grooves in a sliding mode, a driving mechanism is installed on the guide rail on one side and matched with the protection cover, and the protection cover is installed on the other side of the guide rail. And the front surface of the protective cover is open. The transformer is mounted between the two parallel guide rails on the mounting base, then the protective cover is mounted through the two sliding grooves in the two guide rails, and the driving mechanism is rotated to drive the protective cover to linearly move along the sliding grooves in the guide rails until the transformer is completely covered with the protective cover. Therefore, the device has the advantages that the device is provided with the integrated ...

Geographic information system (GIS)-based territorial space planning drawing method

The invention discloses a geographic information system (GIS)-based territorial space planning and mapping method, which comprises the following steps of: S1, collecting and sorting geographic data, including land utilization data, topography and landform data, climate and meteorological data and remote sensing image data, and carrying out topology check on the geographic data; s2, setting a planning index and a space limiting condition according to the requirement of territorial space planning; s3, performing spatial analysis on the geographic data by using a GIS tool to obtain an optimizable region; s4, planning the optimizable area based on a genetic algorithm to obtain an optimal land utilization type combination and distribution planning scheme; and S5, drawing the generated planning scheme by using a GIS (Geographic Information System) tool, wherein GIS software provides symbols, labels and colors required by drawing. According to the method, scientificity, accuracy and visualization ...

Ethylene propylene diene monomer rubber with low-temperature vulcanization property and waterstop as well as manufacturing method of waterstop

The invention provides an ethylene propylene diene monomer rubber with a low-temperature vulcanization property and a waterstop as well as a manufacturing method of the waterstop. The ethylene propylene diene monomer rubber is prepared from the following materials in parts by weight: 100-120 parts of ethylene propylene diene monomer rubber, 5.9-6.1 parts of a vulcanizing activator, 50-65 parts of carbon black, and 2-5 parts of a peroxide vulcanizing agent. The rubber composition disclosed by the invention can be carried out with a vulcanization reaction at the temperature of 140 DEG C, which is lower than the conventional standard of about 160 DEG C; the properties of the vulcanized ethylene propylene diene monomer rubber are consistent with that vulcanized at the conventional standard of about 160 DEG C. The ethylene propylene diene monomer rubber disclosed by the invention can reduce the heating cost and improve the production efficiency. Furthermore, the waterstop prepared from the ethylene ...

Cleaning equipment of honing cutter

The utility model relates to a cleaning equipment of honing cutter, its characterized in that, including washing basket (2) that hold washing tank (1) of washing liquid and be used for holding the honing cutter, it places to wash basket (2) in washing tank (1), and surperficial fretwork so that the honing cutter dipes in the washing liquid, still be provided with ultrasonic wave vibrating plate (3) in washing tank (1). Setting up washing liquid and ultrasonic wave vibrating plate in the washing tank, utilizing hyperacoustic cavitation to wash the honing cutter, it can to take out the washing basket after the washing and tak eoff the honing cutter away. Like this, can reduce the manpower, raise the efficiency, and can promote the cleanliness. In addition, do not soak the honing cutter owingto need not use washing liquid such as kerosene to put for a long time at shop floor, avoided the potential safety hazard.

Transformer power distribution cabinet

A transformer power distribution cabinet disclosed by the present invention comprises a power distribution cabinet body, the top of the power distribution cabinet body is fixedly connected with a shielding plate, the inner wall of the power distribution cabinet body is fixedly connected with two ventilation boxes, the ventilation boxes penetrate through and extend to the outside of the power distribution cabinet body, and the inner walls of the ventilation boxes are slidably connected with filter plates. Uniformly distributed springs are fixedly connected to the filter plate, the other ends of the springs are fixedly connected to the inner wall of the ventilation box, and a push rod is fixedly mounted on the inner wall of the power distribution cabinet body. According to the power distribution cabinet, the filter plate is arranged in the ventilation box to block dust, water vapor in air can be eliminated through the rising movable plate and the drying plate in rainy days to keep the interior ...

Spiral constrained abrasive flow processing device

The invention discloses a spiral constrained abrasive flow processing device. The spiral constrained abrasive flow processing device is used for grinding and processing the inner wall of a workpiece to be processed, and comprises a fixed plate, a spiral constrained processing device, a workpiece clamping device, a workpiece feeding device and a damping device, wherein the spiral constrained processing device, the workpiece clamping device, the workpiece feeding device and the damping device are fixedly mounted on the fixed plate; the workpiece clamping device is used for clamping the workpiece to be processed, the spiral constrained processing device comprises a grinding guide rod and a short spiral groove, the short spiral groove is fixed on the grinding guide rod, the workpiece to be processed is sheathed on the grinding guide rod, and the spiral constrained processing device and the workpiece to be processed form a constrained flow passage in the workpiece to be processed; a fluid inlet ...

Friction-free air floating guide rail for long distance

The invention relates to a friction-free air floating guide rail for long distance, which comprises an air floating sleeve and an air floating shaft; the air floating sleeve is sleeved on the air floating shaft; the air floating sleeve comprises a left air floating sleeve and a right air floating sleeve, the left air floating sleeve is sleeved on the left side of the air floating shaft, and the right air floating sleeve is sleeved on the right side of the air floating shaft; the middle part of the air floating shaft is provided with a connecting seat, the connecting seat is connected with a bearing guiding piece, and the bearing guiding piece follows up a movement piece; an air flowing device also comprises a long-distance linear guide rail, a main slider is arranged on the long-distance linear guide rail in a sliding way, and the main slider is fixedly connected with the left and the right air floating sleeves; and a main air pipe is connected with the main slider, the main air pipe is ...

Intelligence wind -power box become

The utility model discloses an intelligence wind -power box become, including box and the fly leaf of setting in box one side, the fly leaf embedding sets up in the box, the inside of box is equippedwith low pressure aerogenerator, low pressure aerogenerator passes through bolt fixed connection with the box, this kind of intelligence wind -power box become, it is more convenient to use on the basis that traditional wind -power box becomes, do not need the manual work to come to the operation personally, can detect each item data that wind -power box becomes through computer terminal, then itcarries out remote control to become wind -power box, the unexpected reason that has a power failure of analysis that can be quick then carry out quick restoration, when if the inside component of wind -power box change simultaneously breaks down, the warning of can reporting to the police, thereby it leads to wind -power box to become the condition emergence of burning out meanwhile to have avoided ...

Support electrohydraulic control system

The invention relates to a support electrohydraulic control system. The support electrohydraulic control system is characterized by comprising an explosive-proof and intrinsically safe power source, single support electrohydraulic control devices, a support server, a monitoring host, infrared emitters, handheld remote control units and positioning cards, wherein the single support electrohydraulic control devices are connected with the explosive-proof and intrinsically safe power source, the explosive-proof and intrinsically safe power source outputs two sets of intrinsically safe power sources to supply electricity to the single support electrohydraulic control devices, the single support electrohydraulic control devices are connected with one another through a wireless communication network or isolation couplers or cables, and one single support electrohydraulic control device is connected with the monitoring host through the support server. The support electrohydraulic control system ...

High-efficiency pulse dust removal device for feed feeding

The utility model belongs to the technical field of feed processing equipment, particularly relates to an efficient pulse dust removal device for feed feeding, and provides the following scheme aiming at the problems that a large amount of dust is generated when existing feed is fed, feed waste is caused, the content of the dust in air is greatly increased, and pollution is generated, and the efficient pulse dust removal device comprises a box body, a cover plate is fixedly installed on the top of the box body, a feeding hopper is fixedly installed on the top of the cover plate, an isolation net is fixedly installed on the top of the box body and the inner wall of the bottom of the cover plate, a material collecting box is fixedly installed on the box body, a motor is fixedly installed on one side of the box body, and a first rotating rod is fixedly installed on an output shaft of the motor. The first rotating rod penetrates through the material collecting box and is fixedly provided with ...

Qualitative analysis detection method for high polarity sugar-reducing chemical medicament in traditional Chinese medicine

The invention discloses a qualitative analysis detection method for illegally mixed high-polar chemical anti-diabetic components in anti-diabetic traditional Chinese medicine products. In the method, a moving phase is a phosphate-acetonitrile moving phase system; the flow rate is between 0.8 and 1.2ml/min; a chromatographic column adopts a Hypersil amino chromatographic column, the column temperature is between 20 and 45 DEG C, metformin hydrochloride, phenformin hydrochloride, acarbose and voglibose can realize the complete separation. When retention time of a chromatographic peak in an anti-diabetic traditional Chinese medicine product is consistent with that of anti-diabetic medicine and the apparent absorption is shown out, which indicate that the anti-diabetic medicine is contained in the sample to be tested. The method has the advantages of quickness, simplicity, convenience, high sensitivity, strong specialization, broad coverage and so on.

Preparation method of bismuth oxychloride/graphene composite visible light catalyst

The invention discloses a preparation method of a bismuth oxychloride/graphene composite visible light catalyst. The preparation method comprises the following steps of (1) preparing a silvery white pure bismuth oxychloride photocatalyst; (2) preparing 100 ml of graphene oxide solution with the mass concentration of 10 to 60 mg/l, performing ultrasonic dispersion for 1 h, adding 0.2 g of bismuth oxychloride photocatalyst prepared in the step (1), mixing and adsorbing for 2 hours, then adding hydrazine hydrate, uniformly mixing, and then reducing in a water bath at 80 DEG C until the solution uniformly becomes black; (3) naturally cooling the solution to room temperature after reaction, filtering, washing with water and ethanol respectively for three times, and then drying in a constant-temperature drying box at 60 DEG C for 8 hours, so as to prepare the bismuth oxychloride/graphene composite visible light catalyst. The bismuth oxychloride/graphene composite visible light catalyst prepared ...

Universal fee-counting method for telecommunication services

An universal charge counting method for telecommunicaltion service can calculate out the final charge information for each telecommunication service by sorting the same type word section, unifying the various word section used for recording in telecommunication, setting the identification symbol for different word section and carrying out the logic or arithmetic calculatino of this type of word section so that the various charge counting in different telecommunication charge amount definition formula of telecommunication service can be adjusted flexibly and dynamically. This charge counting system is able to finish the various complicated charge counting functions for a newly rising telecommunication service by only modifying the disposal document of charge amount definition with no modificatino of the charge counting system to reduce the working load for maintenance of the charge counting system.

Application of vitepofen in preparation of medicine for inhibiting pulmonary fibrosis

The invention relates to an application of vitepofen in preparation of a medicine for inhibiting pulmonary fibrosis. The vinipofen provided by the invention can inhibit fibrosis to generate epithelial cells and fibroblasts, so that the vinipofen has anti-pulmonary fibrosis performance, and can be used for preparing medicines for treating or preventing pulmonary fibrosis related diseases.

Long-distance air-flotation linear guide rail unaffected by air pipe disturbance

The invention relates to a long-distance air-flotation linear guide rail unaffected by air pipe disturbance, comprises an air flotation shaft and at least two air flotation sleeves, wherein the air flotation sleeves are sleeved on the air flotation shaft and are both connected with an air storage sleeve in a sealing way; the air storage sleeve is connected with a guide bearing member which is in follow-up with a moving member; the long-distance air-flotation linear guide rail also comprises a long-distance linear guide rail which is used for providing support and guidance for long-distance motion, wherein a sliding block can be slidably arranged on the long-distance linear guide rail and fixedly connected with the air flotation shaft; an air storage cavity is arranged between the air storage sleeve and the air flotation shaft; and the shaft center of the air flotation shaft is provided with an air inlet channel which is connected with a compressed air inlet pipe and communicated with the ...

Transformer cooling device

The invention discloses a transformer cooling device which comprises a transformer cabinet body, ventilation boxes are fixedly connected to the left side and the right side of the transformer cabinet body correspondingly, the interiors of the ventilation boxes communicate with the interior of the transformer cabinet body, and cooling fans are fixedly installed on the inner walls of the ventilation boxes; and the cooling fan penetrates through and extends into the transformer cabinet body, and an air groove communicating with the interior of the ventilation box is formed in the side, away from the transformer cabinet body, of the ventilation box. According to the transformer, ventilation between external airflow and the interior of the transformer cabinet body is achieved by arranging the ventilation box, cooling of the interior of the transformer cabinet body is achieved, a filter plate is arranged in the ventilation box, dust in the airflow can be blocked, and erosion of the dust to transformer ...

Preparation method of bismuth oxyfluoride/ grapheme composite visible-light-induced photocatalyst

The invention discloses a preparation method of a bismuth oxyfluoride/ grapheme composite visible-light-induced photocatalyst. According to the technical scheme, the method comprises the following steps: respectively preparing an ethylene glycol solution of Bi (NO3)3.5H2O and an ethylene glycol solution of NaF; mixing; dropwise adding 100mL deionized water to obtain white precipitate; performing suction filtration and drying; maintaining for 2 hours under a temperature of 300 DEG C to obtain spherical bismuth oxyfluoride with particle size of 800nm; dispersing graphene oxide into deionized water; adding spherical bismuth oxyfluoride to an aqueous solution of graphene oxide; adding hydrazine hydrate; reducing through water bath under the temperature of 80 DEG C until reaching polymerization precipitation and clear solution; naturally cooling the solution to reach room temperature after the reaction is done; filtering; washing with deionized water and ethyl alcohol three times, respectively ...

Seal pot using noise for test vibration

The invention relates to a detection device, in particular to a seal pot using noise for testing vibration. The seal pot comprises a pot body, microphones, an installing platform, a shock insulation base and a driving device, wherein the driving device is installed outside the pot body, the installing platform is located in the pot body, the microphones are installed in the pot body and located on the periphery of the installing platform, the installing platform penetrates through the pot body and is fixedly installed on the shock insulation base outside the pot body, the inner wall of the pot body is coated with an acoustical material, the pot body is filled with high-pressure and high-density gas, a part to be tested is installed on the installing platform, an output shaft of the driving device penetrates through the pot body and is connected with the part to be tested, the positions of the microphones are adjusted to be over against the part to be tested, the voice frequency information ...

Nursery stock supporting device

The utility model discloses a nursery stock supporting device, in the nursery stock supporting device, a mounting seat is supported at one end of a supporting column, the mounting seat is of an arc-shaped structure, and the mounting seats of all supporting mechanisms are spliced to form a circular structure to surround a nursery stock; the second fixing plate is arranged at the other end of the arc-shaped structure and is parallel to the first fixing plate, and the second fixing plate is connected with the first fixing plate to fasten the circular structure; one end of the connecting rod is pivotally connected with the base, and the other end of the connecting rod is connected with the rotating sleeve and the base of the other seedling supporting device in a switchable manner. According to the nursery stock supporting device, supporting and fixing of a single nursery stock can be enhanced, a plurality of nursery stocks can be supported and fixed mutually, and the nursery stock supporting ...

Air flotation shaft rotary soft abrasive flow polishing device

The invention discloses an air flotation shaft rotary soft abrasive flow polishing device which is used for grinding and processing a slender rod to be processed. The device comprises a fixed plate, a slender rod core polishing device, a workpiece feeding device and a damping device, wherein the slender rod core polishing device, the workpiece feeding device and the damping device are fixedly mounted on the fixed plate; the workpiece feeding device is used for axial feeding of the slender rod core polishing device, and the damping device is used for damping the axial feeding of the slender rod core polishing device; the slender rod core polishing device comprises an internal spiral constraining module, a constraining module mounting seat, a sealing cover, a clamping end cover, an O-shaped sealing ring and a screw rod, the slender rod to be processed passes through one end of the constraining module mounting seat and is connected with a servomotor through a shaft coupling, the other end ...

Anti-dust device and reactor containing anti-dust device thereof

The invention provides an anti-dust device and a reactor containing the anti-dust device. The anti-dust device comprises an annular groove part (1), the annular groove part (1) comprises an inner wall of the groove and an outer wall of the groove and a bottom capable of connecting the inner wall of the groove with the outer wall of the groove, an accommodating cavity surrounded by the inner wall of the groove, the outer wall of the groove and the bottom, and a discharge structure is provided with the annular groove part (1), the provided discharged structure enables a solution in the accommodating cavity to flow as a ring-shaped surface. The powdered dust can be enclosed in the solution shaped as the ring-shaped surface by the anti-dust device; therefore the dust can not be dispersed in all directions, so that the environment can be effectively protected. The reactor comprises the anti-dust device thereof.

Two camera universal joint cage pocket detection device

The utility model discloses a two camera universal joint cage pocket detection device for the pocket hole precision of quick convenient detection universal joint holder, including feed mechanism, clamping platform, clamping system, cylinder clamping system, detecting system and discharging device, detecting system includes first camera and second camera, carries out the image through first camera and second camera and shoots and utilize image identification technology to carry out the pocket hole and detect, the utility model discloses simple structure is compact, low in production cost, can detect the pocket hole precision of universal joint holder through the mode that the image is differentiated one by one, it is high to detect the precision, and degree of automation is high, has saved the labour, the utility model discloses can use the measuring of the universal joint holder of different sizes, adaptability is good, easily promotes.

Universal joint retainer clamping and positioning device

The invention discloses a universal joint retainer clamping and positioning device which is used for accurately clamping and positioning a universal joint retainer before pocket detection to facilitate a next detection procedure. The universal joint retainer clamping and positioning device comprises a feeding channel and a reference platform, the reference platform is arranged at the tail end of the feeding channel, a limit stopper is arranged at the end of the reference platform, and a clamping system and a cylinder clamping system are arranged on two sides of the reference platform perpendicular to a feeding direction. The universal joint retainer clamping and positioning device is simple and compact in structure, low in production cost and high in automation degree, the universal joint retainer can be automatically clamped and accurately positioned, the detection procedure of the universal joint retainer is facilitated, manual labor is omitted, and clamping efficiency is improved.

Preparation method of zinc molybdate/graphene composite visible light catalyst

The invention discloses a preparation method of a zinc molybdate/graphene composite visible light catalyst. The preparation method comprises the following steps of (1) adding 2 mmol of Na2M0O4 into a graphene oxide solution, and performing ultrasonic dissolution for 30 min, so as to prepare a solution X; (2) mixing and dissolving 2mmol of Zn(CH3COO)2.2H20 into 40 ml of water, so as to obtain a transparent clear solution Y; (3) dropwise adding the solution Y into the solution X under the ultrasonic action, performing ultrasonic operation for 120 min, then adding hydrazine hydrate, uniformly mixing, and then reducing in a water bath at 80 DEG C to polymerize and precipitate, so that the solution is clear; (4) naturally cooling the solution to room temperature after reaction, filtering, washing with water and ethanol respectively for three times, and then drying in a constant-temperature drying box at 80 DEG C for 5 hours, so as to prepare the zinc molybdate/graphene composite visible light ...

Automatic calibration system of charge/discharge detection instrument of storage battery

The invention relates to an automatic calibration system of a charge/discharge detection instrument of a storage battery, which comprises an storage battery simulation load, a sampling control module and an upper computer which is used for collecting a signal of the charge/discharge detection instrument of the storage battery and controls different calibration modes, wherein the upper computer comprises a communication interface and a collection interface, the communication interface is communicated with the charge/discharge detection instrument of the storage battery, the collection interface is communicated with a collection control module and is connected with the sampling control module, the sampling control module is connected with the storage battery simulation load, and the output positive pole and the output negative pole of the storage battery simulation load are connected with the input end of the charge/discharge detection instrument of the storage battery to be calibrated.The ...

Qualitative analysis detection method for low polarity sugar-reducing chemical medicament in traditional Chinese medicine

The invention discloses a qualitative analysis detection method for illegally mixed high-polar chemical anti-diabetic components in anti-diabetic traditional Chinese medicine products. The method comprises the following steps that: 1) high efficient liquid phase chromatography conditions: an ammonium acetate-triethylamine-acetonitrile moving phase system and a C18 chromatographic column with certain specification are used, the wavelength is detected by ultraviolet, and the flow rate is 1.0ml/min; 2) analysis result: glibenclamide, glipizide, gliclazide, glimepiride, gliquidone, repaglinide, nateglinide, rosiglitazone and pioglitazone hydrochloride can realize the complete separation; 3) result judgment: when retention time of a chromatographic peak in an anti-diabetic traditional Chinese medicine product is consistent with that of anti-diabetic medicine in the step 2) and the apparent absorption is shown out, which indicate that the anti-diabetic medicine is contained in the sample to be ...

Universal joint cage pocket detection device based on image is differentiated

The utility model discloses an universal joint cage pocket detection device based on image is differentiated for the pocket hole precision of quick convenient detection universal joint holder, including feed mechanism, clamping platform, cylinder clamping system, clamping system, detection device and discharging device. The utility model discloses simple structure is compact, low in production cost, can detect the pocket hole precision of universal joint holder through the mode that the image is differentiated one by one, it is high to detect the precision, and degree of automation is high, has saved the labour, the utility model discloses can use the measuring of the universal joint holder of different sizes, adaptability is good, easily promotes.

Excitation method of vibrating wire sensor

An excitation method of a vibrating wire sensor mainly comprises the following operating steps: performing single excitation for exciting coils of the vibrating wire sensor by an intermittent excitation mode to obtain a resonant frequency measured value f1 with low precision; calculating statistical characteristics of vibration signals during various periods, and inspecting the statistical characteristics; exciting the exciting coils of the vibrating wire sensor by adopting a signal with the frequency being f1 and stopping excitation after vibrating wire resonance, or performing frequency-sweep excitation at the position of a narrower bandwidth near the frequency f1; and finally processing signals from vibration pickup coils, and measuring the signal frequency to obtain a measured value f2as an exact value of vibrating wire resonance frequency. The excitation method of the vibrating wire sensor has the advantages of fast starting of vibration, large amplitude, shortened detection time, ...

Automatic and continuous lifting mechanism of ball-cage type constant velocity universal joint holders

The invention discloses an automatic and continuous lifting mechanism of ball-cage type constant velocity universal joint holders, so as to lift the ball-cage type constant velocity universal joint holders one by one automatically. The automatic and continuous lifting mechanism comprises a lifting bracket, a lifting mechanism, two linear guide rails, a sliding block, a feeding channel and a lifting channel, wherein the upper ends and the lower ends of two linear guide rails are fixed on the lifting bracket; the sliding block sleeveds two linear guide rails; the sliding block is fixedly connected with the lifting channel and drives the lifting channel to move up and down along the linear guide rails; the feeding channel is fixed on the lifting bracket; the lifting mechanism is arranged on the lifting bracket and is used for driving the sliding block to move up and down along the linear guide rails. The automatic and continuous lifting mechanism is simple and compact in structure, can achieve ...

Process for integrating pulping and bleaching by using ultrasonic wave

The invention discloses a process for integrating pulping and bleaching by using ultrasonic wave, which relates to the technical field of papermaking and pulping. The process comprises the following steps: adding water to raw materials to obtain a raw material liquid which has a concentration of 3%-30%, and adding an ultrasonic wave assistant enhanced additive which is 0.1%-1.0% of the raw material liquid weight; then heating the raw material liquid to 50 DEG C-180 DEG C and turning on an ultrasonic generator, wherein the ultrasonic power is 0.25-1 kilowatt per cubic meter of the raw material liquid; the frequency is 15-80KHz; and the ultrasonic wave acts on the raw material liquid intermittently for 1-5 hours. With the action of ultrasonic wave, fiber and lignin in the raw material are separated to form bleached slurry; and carrying out processes such as selecting, purifying, solvent extracting and the like after discharging. The invention has the beneficial effects that: carrying out ...

Sewage treatment automatic control device for reducing production of N2O and operation method of sewage treatment automatic control device

The invention discloses a sewage treatment automatic control device for reducing the production of N2O and an operation method of the sewage treatment automatic control device. The technical scheme of the invention is characterized in that the sewage treatment automatic control device for reducing the production of N2O comprises an anaerobic treatment tank, an anoxic treatment tank, an aerobic treatment tank and a sludge sedimentation tank, wherein the anoxic treatment tank is communicated with the aerobic treatment tank by virtue of an internal circulation reflux pump and a pipeline; the anaerobic treatment tank is communicated with the sludge sedimentation tank by virtue of an external circulation reflux pump and the pipeline; an anaerobic treatment tank NO2 detection probe, an anoxic treatment tank NO2 detection probe, an aerobic treatment tank NO2 detection probe, a dissolved oxygen detection probe, an auxiliary air pump, the internal circulation reflux pump and the external circulation ...

Protective effect and bowel relaxing effect of maca extract on alcoholic liver injury

The maca extract has the effects of protecting alcoholic liver injury and relaxing the bowels. The maca extract is a maca water extract or a maca alcohol extract or a maca powder solution.

Two-dimensional plane air-floatation zero-gravity cradle

The invention relates to a two-dimensional plane air-floatation zero-gravity cradle which comprises two long-distance air-floatation linear guide rails, a Y-axis air-floatation axle, a Y-axis air-floatation sleeve and a hanging rope, wherein at least two X-axis air-floatation sleeves are sleeved on an X-axis air-floatation axle, the X-axis air-floatation sleeves are all connected with an air storage sleeve in a sealing way, an installing slide block is slidably arranged on the long-distance air-floatation linear guide rails and is connected with a drive mechanism in a drive way, the slide block is fixedly connected with the X-axis air-floatation axle, an air storage cavity is arranged between the air storage sleeve and the X-axis air-floatation axle, the axle center of the X-axis air-floatation axle is provided with an air inlet channel which is communicated with the air storage cavity, the air storage cavity is provided with an air outlet which is communicated with an air inlet of each ...

Solar cell module supporting structure

The utility model relates to the technical field of solar cells, and discloses a solar cell module supporting structure which comprises a fixing seat, a fixing groove is formed in the top of the fixing seat, a fixing shaft is fixedly installed between the opposite sides of the left side wall and the right side wall of the fixing groove, and rotating blocks are movably installed on the left side and the right side of the outer surface of the fixing shaft. And the tops of the outer surfaces of the two rotating blocks are each fixedly provided with a connecting block, and one end of each connecting block penetrates through and extends out of the fixing base. According to the solar cell module supporting structure, the two electric push rods are arranged, when the inclination angle of the solar cell module body needs to be adjusted, the two electric push rods are started, the two electric push rods can drive the movable block to slide in the movable groove through the fixed block, and the mounting ...

Motion accompanying suspension device providing constant hanging force

The invention provides a motion accompanying suspension device providing constant hanging force. The device comprises an aerostatic guide rail, a first fixed pulley, a second fixed pulley, an additional fixed pulley, a movable pulley, a suspension rope and a weight reduction weight, wherein slide blocks are slidably arranged on the aerostatic guide rail, and are fixedly connected with a fixed pulley seat; the first fixed pulley and the second fixed pulley are arranged on the fixed pulley seat; the movable pulley is arranged on a movable pulley seat; a moving part is hoisted on the movable pulley seat; one end of the suspension rope is fixed on a fixed framework; the suspension rope passes through the first fixed pulley, the movable pulley, the second fixed pulley and the additional fixed pulley in sequence; the other end of the suspension rope is connected with the weight reduction weight; the first fixed pulley and the second fixed pulley are flotation bearing pulleys; air inlet holes ...

Information interaction method, identity authentication method, server and terminal

The invention discloses an information interaction method, an identity authentication method, a server and a terminal, and belongs to the technical field of information. The method comprises the following steps: receiving an information sending request sent by a first terminal corresponding to a first user, wherein the information sending request carries information needing to be sent and at least one user identifier, the user identifier is the user identifier of a second user receiving the information, and the first user and the second user belong to the same group; inquiring a social application identifier corresponding to each user identifier carried in the information sending request; and sending the information carried in the information sending request to a second terminal corresponding to each second user according to each social application identifier. Interaction of the first terminal with the second terminal can be realized through a social application server which is compatible ...

Control circuit for outputting synchronous signals by using Spider8 data acquisition system

The invention discloses a control circuit for outputting synchronous signals by using a Spider8 data acquisition system, which comprises a 12-digit binary counter CD4040, an analog switch CD4051 and a frequency dividing coefficient selection connector; the 18th pin and 19th pin of the Spider8 data acquisition system are connected with the 1st and 2nd pins of a circuit board port; the circuit board port is connected with the input end of the binary counter CD4040; the output end of the binary counter CD4040 is respectively connected with the analog switch CD4051; the three-digit selection signal end of the analog switch CD4051 is connected with the frequency dividing coefficient selection connector; and the output end of the analog switch CD4051 is connected with a synchronous signal output port. The invention provides a control circuit for outputting synchronous signals by using the Spider8 data acquisition system, which can ensure accurate synchronization of samples during data exchange ...

Method for calibrating measurement value applied to singlechip without multiply instruction

The invention discloses a method for calibrating a measurement value applied to a singlechip without a multiply instruction, which comprises the following steps: (1), segmenting an area where the measurement value is positioned by adopting a nonlinear segmenting mode; and (2), calibrating the measurement value at each segmented linear area, namely accumulating multiple A/D sampling values and then shifting the sum to right for n times, acquiring the calibrated parameter measurement value through calculation, storing a calibration coefficient S by using two bytes, defining the high byte as SH, and defining the low byte as SL, wherein S = SH * 256 + SL; and (3), accurately calibrating the parameter measurement value by adjusting the calibration coefficient S according to the standard measurement value of a standard instrument. The method improves the processing capability of the singlechip without the multiply instruction, avoids a floating-point number multiplication-division method for ...

Excitation method of vibrating wire sensor

An excitation method of a vibrating wire sensor mainly comprises the following operating steps: performing single excitation for exciting coils of the vibrating wire sensor by an intermittent excitation mode to obtain a resonant frequency measured value f1 with low precision; calculating statistical characteristics of vibration signals during various periods, and inspecting the statistical characteristics; exciting the exciting coils of the vibrating wire sensor by adopting a signal with the frequency being f1 and stopping excitation after vibrating wire resonance, or performing frequency-sweep excitation at the position of a narrower bandwidth near the frequency f1; and finally processing signals from vibration pickup coils, and measuring the signal frequency to obtain a measured value f2 as an exact value of vibrating wire resonance frequency. The excitation method of the vibrating wire sensor has the advantages of fast starting of vibration, large amplitude, shortened detection time, ...

Frictionless air flotation device used for following moving trace of suspension centre in extra-long distance

The invention provides a frictionless air flotation device used for following a moving trace of a suspension centre in an extra-long distance. The frictionless air flotation device comprises an air flotation shaft and an air flotation sleeve, wherein the air flotation sleeve is sleeved on the air flotation shaft; the air flotation sleeve is connected with a suspension rope; and the suspension rope moves together with a moving piece. The frictionless air flotation device also comprises a guide rail, wherein a sliding block is moveably arranged on the guide rail; and the sliding block is fixedly connected with the air flotation shaft. The frictionless air flotation device used for following the moving trace of the suspension centre in the extra-long distance has the advantages of lowering requirements on coaxiality machining accuracy, lowering the requirements on flexural rigidity, reducing cost, improving the reliability and maintainability, along with convenient transportation, installation ...

Buried prefabricated transformer substation

The utility model discloses a buried prefabricated transformer substation, including the device main part, the device main part comprises at the transformer room of switch gear room bottom and the water tank that sets up at the switch gear room top switch gear room, setting, the top of switch gear room is equipped with switch gear room's roof and aeration grid board, just switch gear room's roof with closely weld the switch gear room, the aeration grid board with switch gear room's roof closely welds, the top of switch gear room's roof is equipped with the maintenance and goes into the handhole door, and exhaust fan and aeration grid board are installed to the top of switch gear room, make the transformer substation have better waterproof and radiating effect, guarantees substation operation safety, reliably, generally speaking fairly simple, the environmental protection of this equipment structure, energy -conservation, theftproof, noiseless, radiationless, not frighten mud -rock flowand ...

Hot vacuum environment test moment value correction method

The invention relates to a hot vacuum environment test moment value correction method. Two identical magnetofluid sealing shafts are coaxially arranged at both sides of a vacuum tank, and a torque sensor is respectively arranged on the two magnetofluid sealing shafts. The method comprises the following steps: firstly, testing the friction moment of each magnetofluid sealing shaft at the normal temperature and the normal pressure; then, testing the total friction moment of the two magnetofluid sealing shafts as a whole body in hot vacuum environment through directing connecting the two magnetofluid sealing shafts; and calculating the friction moment variable quantity of the two magnetofluid sealing shafts at the normal temperature and the normal pressure in the hot vacuum environment through the above two test results. Thereby, the value of the friction moment of each magnetofluid sealing shaft in the hot vacuum environment can be obtained. The invention provides the hot vacuum environment ...

Two-dimensional gas floating follow-up device for supplying constant suspension force

The invention relates to a two-dimensional gas floating follow-up device for supplying constant suspension force, which comprises a gas floating shaft and gas floating sleeves, wherein the gas floating sleeves are sleeved on the gas floating shaft; at least two gas floating sleeves are arranged; the gas floating sleeves are hermetically connected with a gas storing sleeve; a gas storing cavity isformed between the gas storing sleeve and the gas floating shaft; a shaft center of the gas floating shaft is provided with a gas inlet channel; the gas inlet channel is connected with a compressed gas inlet pipe and is communicated with the gas storing cavity; the gas storing cavity is provided with a gas outlet; the gas outlet is communicated with the gas inlet of each gas floating sleeve through a connecting gas pipe; the gas floating device also comprises a slide block and a guide rail; the gas floating shaft is installed on the slide block; the slide block is installed on the guide rail in ...

分布式认证/计费服务器系统及其实现方法

... 一种分布式认证/计费服务器系统及其实现方法，该系统包括：直接与远程接入服务器连接的、用于实现面向客户端的接收/发送数据包、完成编码/解码数据包和向系统内其他服务器转发数据包功能的基本Radius服务器；其特征在于：该系统还包括：与基本Radius服务器分别相连接、并够独立完成各自不同逻辑处理功能的用户在线管理器、IPDR采集器和多个认证/授权服务器；该IPDR采集器又与多个计费服务器相连接。该系统能够实现业务的热插拔，即引入新业务或对现有业务进行修改时，不会影响正在运行的其他业务，可实现系统的在线升级；且能够提高系统性能的伸缩性和工作稳定性，在系统性能不足时，只需增加新的服务器，对系统进行简单必要的配置即可生效。 ...

Air flotation device following one-dimensional motion trail of lifting point at overlength distance without being influenced by air pipe disturbance

The invention relates to an air flotation device following a one-dimensional motion trail of a lifting point at an overlength distance without being influenced by air pipe disturbance, comprising an air flotation shaft, air flotation sleeves and a guide track, wherein the air flotation sleeves are sleeved on the air flotation shaft, and at least two air flotation sleeves are all hermetically connected with an air storage sleeve; the air storage sleeve is connected with a lifting rope; the lifting rope moves along with a moving part; the guide track is slidably provided with a slide block; the slide block is fixedly connected with the air flotation shaft; an air storage cavity is positioned between the air storage sleeve and the air flotation shaft; the shaft center of the air flotation shaft is provided with an air inlet passage; the air inlet passage is connected with a compressed air inlet pipe and is communicated with the air storage cavity; the air storage cavity is provided with an ...

Discharging circuit used for capacity detector for storage battery of electric bicycle

The invention relates to a discharging circuit used for a capacity detector for a storage battery of an electric bicycle. The discharging circuit comprises a storage battery, a load resistor R1 and a main power tube Q1, wherein the storage battery is in series connection with the load resistor R1 and the main power tube Q1 in turn. The discharging circuit further comprises an adjustment branch circuit, wherein the adjustment branch circuit comprises an adjustment resistor R2 and an adjustment power tube; the adjustment resistor R2 is in series connection with the adjustment power tube; and the adjustment branch circuit is in parallel connection with the storage battery. The discharging circuit used for the capacity detector for the storage battery of the electric bicycle provided by the invention has the advantages of effectively reducing the maximum power dissipation of the power tube and reducing the cost, along with high reliability.

Automatic calibration system of charge/discharge detection instrument of storage battery

The invention relates to an automatic calibration system of a charge/discharge detection instrument of a storage battery, which comprises an storage battery simulation load, a sampling control module and an upper computer which is used for collecting a signal of the charge/discharge detection instrument of the storage battery and controls different calibration modes, wherein the upper computer comprises a communication interface and a collection interface, the communication interface is communicated with the charge/discharge detection instrument of the storage battery, the collection interface is communicated with a collection control module and is connected with the sampling control module, the sampling control module is connected with the storage battery simulation load, and the output positive pole and the output negative pole of the storage battery simulation load are connected with the input end of the charge/discharge detection instrument of the storage battery to be calibrated. The ...