包装盒（时代经典70年代、时代经典80年代）

Two grade manual gearboxes of electric automobile

... 本实用新型提供种电动汽车手动两档变速箱，包括：箱体；输入轴；输入轴高档齿轮；输入轴低档齿轮，固定设置于输入轴上；中间轴；同步器；第转动套，可在中间轴上转动；低档从动齿轮，与输入轴低档齿轮相啮合；第二转动套，可在中间轴上转动；高档从动齿轮，与输入轴高档齿轮相啮合；同步器，设置于中间轴上，低档从动轮与高档从动齿轮之间，可与低档从动齿轮的结合齿或者所述高档从动齿轮的结合齿相结合；中间轴齿轮，固定设置于所述中间轴上；差速器，通过轴承安装于所述箱体上；差速器齿轮，与中间轴齿轮相啮合；换挡臂；拨块，与所述换挡臂固定连接，用于拨动同步器使所述同步器与低档从动齿轮的结合齿或者高档从动齿轮的结合齿相结合。 ...

Shipyard electric energy inquiry system

The invention relates to the technical field of shipyard electric energy management, and particularly discloses a shipyard electric energy query system, which comprises a central server, a system data configuration module, a basic data configuration module and a service configuration module, the central server is electrically connected with the system data configuration module, the basic data configuration module and the service configuration module; the system data configuration module defines login user information and a login user operable menu permission for operation step description, the basic data configuration module defines basic data information, the basic data information comprises but is not limited to substation type and time-division interval information, and the service configuration module defines service scene information; the communication technology, the database and the PLC technology are used for monitoring, analyzing, counting and managing all electric parameters of ...

Flow choking type eccentric semi-ball valve for slurry

The invention relates to the technical field of valves, in particular to a flow choking type eccentric semi-ball valve for slurry. Comprising a valve body, a first pipeline, a second pipeline, a rotating rod, a rotating valve element, a sliding plate, a reset spring and the like, the first pipeline is communicated with the second pipeline through the valve body, the rotating rod is rotationally connected with the valve body, the rotating valve element is connected with the rotating rod, the rotating valve element is located in the valve body, and the sliding plate is slidably connected with the first pipeline and can slide up and down. The rotary valve element makes contact with the sliding plate when rotationally closed, and the reset spring is connected with the sliding plate and the first pipeline. The rotary valve element can be controlled to rotate to be opened or closed by rotating the hand wheel forwards and backwards, so that on-off of slurry can be controlled, meanwhile, when the ...

Preparation method of compact cordierite ceramic material with high elastic modulus

The invention relates to a preparation method of a compact cordierite ceramic material with high elastic modulus. The preparation method comprises the following steps: step 1, preparing a GeO2-SnO2 system amorphous additive; and 2, preparing a cordierite ceramic raw material from 11-16% by weight of MgO, 29-37% by weight of Al2O3 and 51-59% by weight of SiO2, adding the amorphous additive obtained in the step 1, tap water and an organic dispergator, and carrying out weighing, uniform mixing, ball milling, sieving, slip casting, green body drying, high-temperature firing and cooling to obtain the high-elastic-modulus compact cordierite ceramic material. The material has high density, low thermal expansion coefficient and high elastic modulus, low thermal expansion can ensure that the size precision of the mobile platform is not affected by environment temperature fluctuation and temperature change caused in the machining process, and high modulus can ensure that the mobile platform does ...

Method for preparing high-strength glass ceramic by taking coke residue as main material

The invention discloses a method for preparing high-strength glass ceramic by using coke residue as a main material. The method specifically comprises the following steps: S1, preparation of raw materials; S2, preparation of raw powder; S3, preparation of raw slurry; the invention relates to the technical field of new materials. According to the method for preparing the high-strength glass ceramic by taking the coke residues as the main material, the impact strength of the glass ceramic can be improved by improving the components of the glass ceramic, the mechanical strength of the glass ceramic is greatly improved, and the prepared glass ceramic can meet the application scene needing impact resistance. Meanwhile, the use and preparation process of the glass ceramic material disclosed by the invention is good in environmental protection property, and the processing and forming of the glass ceramic can be completed by adopting the coke residue, the mineral compound, the black mud, the fly ...

Synchronous drive friction type novel electro-hydraulic load simulator

The invention relates to a novel synchronous driving friction type electro-hydraulic load simulator which comprises a controller, an oil tank, an oil suction filter, an alternating current servo motor, a hydraulic pump, a pressure gauge, an energy storage device, an overflow valve, an electromagnetic reversing valve, a hydraulic oil cylinder, a feedback sensor, an oil level gauge, a spring, a friction plate and a universal bull eyeball. The feedback sensor is connected with the controller, and the controller outputs a control signal to control the electromagnetic directional valve by comparing with an input instruction, so that the servo control system has high reliability and high stability; the opening of the friction plate is realized by a spring, the friction force generated by the locking of the friction plate is realized by two radial valve-controlled cylinder electro-hydraulic servo systems, and the two hydraulic cylinders accurately and synchronously move; the piston rod of the ...

Diamond slurry and diamond additive manufacturing method

The embodiment of the invention provides diamond slurry and a manufacturing method of a diamond additive, and belongs to the technical field of additive manufacturing. The diamond slurry is used for diamond additive manufacturing, and comprises the following raw material components in percentage by weight: 45%-80% of modified diamond powder, 10%-20% of a dispersing agent, 1%-5% of a dispersing agent and 1%-5% of a dispersing agent according to 100% of the total weight of the raw material components. 15%-50% of photosensitive resin; 0.5%-5.0% of a photoinitiator; wherein the photosensitive resin is mixed resin composed of polyfunctional resin and monofunctional resin. The content of diamond in the diamond slurry reaches 45% or above, the diamond slurry has the low viscosity characteristic and the excellent flow characteristic, when the diamond slurry serves as the 3D printing slurry for manufacturing the diamond additive, uniform curing can be achieved, warping does not occur, and the obtained ...

Shipyard electric energy management system

The invention belongs to the technical field of electric energy management, and particularly discloses a shipyard electric energy management system which comprises a system management module, a basic configuration module and a service management module. The system management module comprises a user module, a role module and a menu module, user login is carried out in the system management module, and roles are created according to corresponding substations; the basic configuration module comprises a configuration module and a peak and valley leveling module, a transformer substation is added or inquired in the basic configuration module, and peak and valley power consumption and electricity charge data in each time period range are inquired or calculated in the peak and valley leveling module; the business management module comprises a power distribution diagram module, a power distribution state module, a power utilization data statistics module, a data analysis module, an energy consumption ...

Double-valve-port independently-controlled rotary direct-drive electro-hydraulic servo valve

The invention relates to the technical field of hydraulic pressure, in particular to a double-valve-port independently-controlled rotary direct-driven electro-hydraulic servo valve. The valve comprises a controller, a pressure sensor, a rotating speed sensor, a servo motor, a motor base, a sealing ring, a hexagon socket cap screw, a side end cover, a valve body, a split type valve element, a cam shaft, a deep groove ball bearing, a valve sleeve, a side end cover sealing ring, a threaded hole and a screw hole sealing ring. The controller, the pressure sensor and the rotating speed sensor jointly form a control closed loop with the servo motor to control on-off and internal flow of the servo valve. Sealing rings are cushioned at the bottoms of the end covers on the two sides and are fixed on the two sides of the valve body through inner hexagonal column head screws; the motor drives the cam shaft to rotate, and the cam shaft drives the split type valve element to move in the valve sleeve.

Method for preparing ITO target material by oxygen atmosphere pressureless sintering method

The invention discloses a method for preparing an ITO target material through an oxygen atmosphere pressureless sintering method, and the method specifically comprises the following steps: S1, preparation of ITO target material powder, S2, preparation of an ITO target material primary material, S3, pressing treatment, S4, degreasing treatment, and S5, segmented sintering, and relates to the technical field of ceramic material synthesis. According to the method for preparing the ITO target material through the oxygen atmosphere pressureless sintering method, more comprehensive pressing and degreasing treatment can be carried out when the ITO target material raw material is subjected to pre-pressing treatment, a biscuit with better quality is obtained, the purposes of improving the quality of the ITO target material and saving the cost are well achieved, the pre-pressing and degreasing treatment is more thorough, and the quality of the ITO target material is improved. The condition that more ...

Ship control surface load simulation system

The invention discloses a ship control surface load simulation system, and belongs to the field of electro-hydraulic servo control and semi-physical simulation. Comprising a steering engine system and a load simulation system. The problem that in the loading process of an existing electro-hydraulic load simulator, active movement of a steering engine system seriously affects the loading performance of the load simulator, that is, the redundant force problem is solved. The device adopts hydraulic loading and is used for simulating seawater liquid power borne by the ship control surface, the loading force is not influenced by redundant force, a control strategy does not need to consider the redundant force compensation problem, the complexity of the control strategy is reduced, and the device is simple and reliable. According to the invention, the problem of low loading precision caused by redundant force in the electro-hydraulic load simulator is solved, and the structure is scientific and ...

Preparation method of high-density and low-resistivity AZO target material

... 本发明公开种高密度、低电阻率AZO靶材的制备方法，包括以下步骤：取分散剂和粘接剂加入水中，搅拌均匀，用氨水调pH值至8～11，得预混液；所述分散剂为重量比为1：1～2的柠檬酸和聚乙二醇的混合物；向预混液中加入以化学共沉淀法制备的AZO粉体和烧结剂，再于球磨机中进行球磨，球磨后得到混合浆料，搅拌，抽真空除去浆料中的气泡；所述烧结剂由稀土氧化物、氮化硅和纳米GeO组成；把铝制模装在石膏板上，将所得浆料注入铝制模中；吸浆成型后脱模干燥，得AZO坯体；干燥后的AZO坯体在空气中烧结，得AZO靶材。与现有技术相比，本方法可在较低烧结温度下获得致密度高、电阻率低及晶粒尺寸分布均匀的产品。 ...

Preparation process of high-strength glass ceramic mobile phone backboard composite material

The invention discloses a preparation process of a high-strength glass ceramic mobile phone backboard composite material, and particularly relates to the technical field of mobile phone accessory processing. The preparation process comprises the following steps: S1, material preparation, S2, grinding and screening, S3, primary material mixing, S4, secondary material mixing, S5, hot press forming and S6, sintering treatment. According to the preparation process of the high-strength glass ceramic mobile phone backboard composite material, the shrinkage problem of ceramic sintering is avoided by adopting a glass process, the processing cost is reduced, and the density of the material is reduced by adopting a glass ceramic composite process, so that the weight of a mobile phone backboard is reduced, the strength is improved, and the anti-falling capability is improved; the glass-ceramic composite material combines the advantages of glass and ceramic, not only has the characteristics of easy ...

Shipyard electric energy analysis system

The invention belongs to the field of electric energy analysis, and particularly discloses a shipyard electric energy analysis system which comprises a system data configuration module, a basic data configuration module and a service module. The system data configuration module is used for describing operation steps of login user information and login user operable menu permission, and the system data configuration module comprises a user configuration unit, a role configuration unit and a menu configuration unit; the user configuration unit is used for adding login account information, including query, addition, modification and deletion, and the user configuration unit is only open to accounts with administrator authority; the role configuration unit is used for setting access and operation authority of an account, and the role configuration unit is only open to the account with administrator authority; and the menu configuration unit is used for modifying menu names and sequences.