108results about How to "Reduced maintenance needs" patented technology

The invention discloses a sensorless motor control method based on self-adaptive NT-SMO. The method comprises the following steps: acquiring phase current and phase voltage of a motor; based on the phase current and the phase voltage, a self-adaptive NT-SMO model is adopted to determine the rotating speed of the motor and the position of a rotor; performing first coordinate transformation on the current of the motor according to the rotor position to obtain d-axis and q-axis feedback current; obtaining a q-axis reference current through a sliding mode controller based on the error between the motor rotating speed and the reference rotating speed; according to the d-axis feedback current, the q-axis feedback current and the reference current, a PI controller is adopted to determine d-axis reference voltage and q-axis reference voltage; and performing second coordinate transformation on the d-axis reference voltage and the q-axis reference voltage to obtain a control voltage, and driving an inverter to control a motor to operate by adopting an SVPWM modulation mode based on the control voltage. According to the method, the rotating speed and the position information are estimated by directly utilizing the phase current and the phase voltage of the motor in combination with the self-adaptive NT-SMO model, so that the operation of the motor is controlled, and the control precision and the stability in high-temperature, high-humidity, strong-vibration and electromagnetic interference environments are improved.

This invention relates to an attached milling unit, the housing of which has an attachment bracket for attachment to a movable support arm of a carrier. The housing extends along a longitudinal axis (01). Furthermore, the attached milling unit includes at least one motor (02) and a transmission unit, the axis of rotation (05) of which is perpendicular to the longitudinal axis (01) of the housing. Two cross-cutting heads (06) driven to rotate by the transmission unit are attached to both sides of the longitudinal axis (01) of the housing and carry several milling cutters (07). Each cross-cutting head (06) has a driven output shaft (09) about which it rotates, wherein the two output shafts (09) of the cross-cutting head (06) are arranged at an angle to each other and each forms an acute angle with the longitudinal axis (01) of the housing on the side opposite to the attachment bracket. Each output shaft (09) is attached with a driven gear (10) having helical teeth, wherein each helical tooth directly meshes with the corresponding spur tooth segment of the drive spur gear (04).

The utility model relates to lathe technical field provides a good micro - numerical control lathe of chip removal, solve the problem that lathe horizontal work surface falls the chip not easy clearance and the chip falls into the guide rail and influences the problem of tool rest feed. Scheme, the work surface of bed body is inclined surface, the lathe still includes: X axle assembly, include: a) X axle bottom plate, set up on the work surface of bed body, have X axle guide rail on it, b) workbench, slide connection in X axle guide rail, its upper portion is fixed with tool rest, c) first linear drive assembly, drive workbench and move along X axle direction, d) X axle protection assembly, install in workbench X axle direction both ends, protect X axle guide rail, Z axle assembly, include: a) Z axle guide rail, set up in the work surface of bed body, X axle bottom plate bottom slide connection in Z axle guide rail, b) second linear drive assembly, drive X axle bottom plate and move along Z axle direction, c) Z axle protection assembly, install in X axle bottom plate Z axle direction both ends, be used for protecting Z axle guide rail.

This application provides a semi-trailer pin seat, including a seat body, a pin seat base plate, and a traction pin. The seat body is disposed on the top surface of the pin seat base plate, and the traction pin is disposed on the bottom surface of the pin seat base plate. The key feature is that the seat body has an oil storage chamber for storing lubricating grease. The semi-trailer pin seat also includes an oil passage structure disposed within the seat body and located outside the oil storage chamber. The oil passage structure forms at least one first flow path, extending in a front-to-back direction. The front end of the first flow path connects to the oil storage chamber, and the rear end of the first flow path is closed. The pin seat base plate has multiple first oil outlet holes, arranged at intervals from front to back, and connected to the first flow path. Based on the semi-trailer's posture, the lubricating grease can automatically and continuously enter the first flow path from the oil storage chamber under gravity, and then seep out through the first oil outlet holes to the area between the semi-trailer pin seat and the traction pin seat, achieving long-term lubrication of the contact surfaces.

The utility model provides a multi-cold-source collaborative high-voltage cabinet which comprises a multi-cold-source collaborative high-voltage cabinet assembly. The multi-cold-source cooperative high-voltage cabinet assembly comprises a multi-cold-source cooperative high-voltage cabinet body, a heat dissipation plate arranged on the left side of the multi-cold-source cooperative high-voltage cabinet body, a maintenance opening formed in the surface of the heat dissipation plate, an observation door arranged on the front face of the multi-cold-source cooperative high-voltage cabinet body, and a maintenance quick opening assembly. According to the utility model, through the mutual cooperation of the multi-cold-source cooperation high-voltage cabinet assembly and the maintenance rapid opening assembly, the maintenance port is shielded by the fixed frame and the sealing door plate, so that the maintenance port can be rapidly opened to work; the situation that time and labor are wasted when an operator needs to manually disassemble a plurality of bolts is prevented, the stability and durability of the multi-cold-source collaborative high-voltage cabinet are improved, the maintenance requirement is reduced, the service life of the multi-cold-source collaborative high-voltage cabinet is prolonged, and therefore the overall reliability of the multi-cold-source collaborative high-voltage cabinet is improved.

This invention relates to the field of marine propulsion technology, specifically to an auxiliary propulsion structure for electric ships. The structure includes a ship hull, a propeller mounted on the bottom of the hull, and rotating rods fixedly connected to both sides of the hull. An auxiliary propeller is mounted on each rotating rod. Through an idling cooling mechanism, when the water inlet is above the water surface, causing the drive rod to drive the auxiliary propeller to idle, the idling cooling mechanism opens an emergency water path. This allows pre-stored cooling water from the tank to be precisely delivered via drip pipes to the junction of the drive rod and the bearing. This directional dripping forms a water film at the friction interface, providing immediate lubrication and drag reduction, as well as rapid heat absorption and cooling, preventing high-temperature wear, deformation, or sintering of components. Compared to traditional unprotected designs, this mechanism is fast-responding and highly targeted, minimizing damage to core components during idling and ensuring reliable operation of the auxiliary propeller in complex waters.

This utility model discloses a vibrating screen for nicotinamide production, comprising a support frame, four fixed seats (first type) fixed to the support frame, springs fixed to the fixed seats (first type), and fixed seats (second type) fixed to the springs. A vibrating screen body is fixed between the four fixed seats (second type). A dual-shaft motor is fixed to the lower side of the vibrating screen body. Eccentric wheels are fixed to the output shafts of the dual-shaft motors. Fixed columns are fixed to the output shafts of the dual-shaft motors. Connecting shells are fixed to the fixed columns. Sealing covers are fixed to the connecting shells. Connecting pipes are embedded within the fixed columns and communicate with the connecting shells. Through its control structure, this utility model allows the device to dynamically adjust the amplitude of the vibrating screen body according to screening requirements. When a water pump is started to inject water into the connecting shells, the centrifugal force of the connecting shells increases, causing the dual-shaft motors to drive the vibrating screen to produce a larger amplitude, suitable for processing materials that are difficult to screen. Conversely, pumping water reduces the amplitude, suitable for fine screening.

This utility model discloses an adjustable door and window pulley structure, relating to the field of door and window technology. It includes a long, narrow housing with a hollow inner cavity. Within the hollow inner cavity is at least one pulley module. Each pulley module comprises two detachably connected fixed shells, each containing a rotatable pulley. The opposing sides of the two fixed shells each have a guide slope inclined relative to the fixed shell, and each guide slope has an inclined guide groove recessed within it. At both ends of the hollow inner cavity are inclined guide members that can enter the guide grooves. Either guide member is movable, and the housing at the end of the housing near the guide member is also provided with an adjusting member for pressing against the guide member to allow the pulley module to protrude or retract from the housing. This utility model allows for flexible adjustment of the pulley module's extension distance, solving the problems of installation failure or friction, jamming, and noise after installation when the track is uneven.

The utility model discloses a secondary cooling carrier roller device which comprises a supporting frame, a cold roller assembly and a cooling assembly. A hollow roller shaft is sleeved with a sleeve, the inner wall of the sleeve is connected with a V-shaped oil storage pipe through a fixing plate, and the middle of the oil storage pipe is communicated with a connecting ring pipe and an oil conveying pipe. Labyrinth plugging blocks and built-in spring rods are arranged at the two ends of the oil storage pipe, and the top ends of the spring rods are connected with guide slopes with plugging pieces. Bearings and labyrinth plates are arranged on the two sides of the sleeve, heat dissipation bent grooves are formed in the outer side of the hollow roller shaft, and the rotating pipe is connected with the water sump and the water pipe. The device realizes automatic supply of lubricating oil through rotating centrifugal force, and guides the inclined plane to accurately guide the lubricating oil to the bearing; heat exchange is enhanced by winding airflow and the heat dissipation bent grooves, and the cooling efficiency is improved by a water circulation system; and the labyrinth plate obstructs external impurities. The self-adaptive lubricating device has the advantages of self-adaptive lubrication, efficient heat dissipation, reliable sealing and the like, oil consumption can be reduced, the service life is prolonged, and the maintenance frequency is reduced.

The invention belongs to the technical field of functional polymer materials and photocatalysis, and particularly relates to a preparation method and application of an antibacterial coating based on polyvinyl chloride plastics. Comprising the following steps: S1, pretreatment; s2, carrying out a reaction; s3, post-processing is carried out; s4, compounding with polyelectrolyte; and S5, preparing the coating. Through a specific catalytic cracking process, the waste PVC is converted into a functional photocatalytic antibacterial coating material, so that resource utilization and functional utilization of the waste chlorine-containing plastic are realized; a catalytic cracking process under a solvent-free condition is adopted, so that the use of an organic solvent is avoided; the coating material has relatively good photochemical stability, and can realize a relatively lasting antibacterial effect; the method has relatively low requirements on equipment, reaction conditions are easy to control, and the method is not only suitable for laboratory research, but also convenient for engineering and industrial amplification. And by combining the processing performance of the obtained coating, the technology has popularization and application potential.

This invention discloses a high-pressure forming apparatus and method for graphene high-speed steel bearings. The apparatus includes a human-machine interface system, an automatic loading and unloading system, a high-pressure forming system, and a control system. The method is as follows: First, the high-speed steel bearing is placed on a vibrating conveyor belt and transported to a bearing mounting base. After a proximity switch sensor detects the high-speed steel bearing, the main controller controls a magnetic mechanical gripper to remove the high-speed steel bearing from the bearing mounting base and place it between high-pressure forming molds. Then, a lower layer of graphite material is laid on the base of the high-pressure forming mold, and the high-speed steel bearing is placed in the inner ring of the mold. The upper cover of the high-pressure forming mold is lowered to cover the bearing, and a plug is placed in the inner ring of the upper cover of the high-pressure forming mold before laying the upper layer of graphite material. Finally, the high-pressure forming system is activated, and the high-pressure forming ejector pin performs double-sided forming on the upper and lower end faces of the high-speed steel bearing. This invention achieves high-pressure forming of graphite material for graphene high-speed steel bearings, with a high degree of automation, improving production efficiency and product quality.

The utility model discloses a kind of binding tables for sofa manufacturing, it is related to sofa technical field, and it includes: workbench, the outer surface front end of the workbench is fixedly installed with installation box, the inside fixed mounting of the installation box is with motor, the output of the motor is fixedly installed with threaded rod, the shaft surface one end of the threaded rod is fixedly installed with moving block, and the outer surface bottom end both sides of the moving block are fixedly installed with second connecting plate, by adopting single motor drive precision mechanical linkage mechanism including threaded rod, moving block, second connecting plate, first connecting plate, positioning shaft, slide rail and elastic reset component reset spring, replace the multiple electric push rod and motor relied on in the prior art.This design significantly reduces the procurement cost of equipment, while core transmission components such as threaded rod, connecting plate, slider, slide rail and elastic element compression spring, reset spring are all high-reliability, low-maintenance mechanical structures.

The application discloses a flexible on-load voltage regulating transformer multi-target cooperative control system and method based on hour-level load prediction, which comprises the following steps: a node parameter acquisition module acquires electrical parameters of each node of a power distribution network; a load prediction module outputs a load prediction sequence in the future time; a multi-target optimization module generates an optimal control optimization strategy according to a cooperative optimization model; an upper prediction optimization layer makes an hour-level optimization decision on tap position and capacitor group switching; a lower real-time adjustment layer outputs a voltage dynamic compensation amount and generates a minute-level equipment adjustment instruction; and an execution module coordinates and controls flexible on-load voltage regulating transformer (FOLTC) tap switching, capacitor group switching and converter action, so that multi-target optimization of voltage deviation, reactive power compensation and equipment loss is realized. The application is suitable for voltage optimization, reactive power compensation and loss control in a conventional load fluctuation scenario of a power distribution network.

This utility model discloses a foaming device, belonging to the field of microbubble cleaning technology, specifically relating to a micro / nanobubble generating device, comprising: a cavity with a fluid inlet and a mixed fluid outlet, the fluid inlet being used to receive a gas-liquid mixed fluid with a certain pressure; and a multi-stage vortex module disposed within the cavity; the multi-stage vortex module includes a flow channel composed of several blade units, used to cause the passing gas-liquid mixed fluid to undergo at least two rotational directional changes in opposite directions, thereby breaking the gas into microbubbles under the repeated impact and shearing action of the liquid. The blades in this utility model are assembled, and different numbers of blades can be selected depending on the length of the pipe; the blade shape is fluid-mechanically designed to facilitate the rotation of the liquid flow, achieving efficient and stable microbubble generation while significantly improving cost control, maintainability, and adaptability.

The utility model provides a kind of aluminium alloy automobile side step polishing device, including intelligent polishing component, the intelligent polishing component includes the side step polisher of setting, the bottom of the side step polisher is fixedly connected with workbench, the front of the side step polisher is provided with polisher, the front side of the side step polisher is provided with side step body, clamping positioning assembly, the clamping positioning assembly includes the support frame of setting, the support frame is fixedly connected at the both sides of workbench top, the utility model is cooperated by the setting of intelligent polishing component and clamping positioning assembly, the surface of side step body is clamped and fixed by clamp, to ensure the firmness and convenience of side step body connecting place, prevent side step body clamping positioning to be more complicated, improve the stability and durability of side step polisher, reduce maintenance requirement and prolong side step polisher service life, to improve the overall reliability of polishing device.

The invention belongs to the technical field of thermotechnical fluid tests, and discloses a thermotechnical fluid test system precious gas pressure stabilizing and recycling device and method.The device comprises a plurality of air bag type pressure tanks, each air bag type pressure tank is provided with an inlet adjusting valve, an outlet adjusting valve and a gas adjusting valve, and the gas adjusting valves are connected with a precious gas supplementing loop; the valuable gas supply loop is connected with the helium test loop, the helium test loop is connected with the vacuum pump set, the inlet regulating valve is connected with the water pump, the water pump is connected with the plant water inlet, and the outlet regulating valve is connected with the plant water outlet. Water is injected into part of the air bag type pressure tanks in sequence, gas is compressed into the remaining air bag type pressure tanks, the gas is stored in the different air bag type pressure tanks, and the helium test loop is filled with the recycled gas. The device is easy and convenient to operate, and pressure adjustment and gas recovery can be achieved by controlling the water level.

The utility model discloses a kind of tank uniform shaking devices, including rack, at least two groups of parallelly arranged rotating shaft assembly, transmission sprocket, drive assembly and idler sprocket. Rotating shaft assembly includes shaft and at least two adjustable wheel diameters adjusting wheel of sleeve set in the outer periphery of shaft, by locking bolt fixed and spacing adjustable;Transmission sprocket is positioned by way of key and is axially fixed using locking bolt, and different specifications can be quickly replaced to adjust transmission ratio;Drive assembly is driven by chain, cooperates idler sprocket and symmetrically arranged double-tension sprocket to realize chain stable tensioning, and idler sprocket height is adjustable to enhance tensioning force;Shaft both ends adjusting wheel is equipped with anti-slip retaining edge, rack bottom is equipped with universal caster and threaded lifting foot cup;The device has high universality, and different specifications tank is adapted by adjusting wheel diameter and spacing, transmission sprocket replacement realizes speed regulation, and double-tension structure ensures transmission stability, solves chain slack problem, and is suitable for the efficient mixing demand of multi-specification tank.

This invention discloses a method and system for rapid hydrogen flow control, belonging to the field of fluid control technology. To address the problems of low accuracy and slow response in existing PID control methods for hydrogen flow control, this invention proposes a data-driven intelligent control scheme. The method includes: covering different flow ranges through a multi-branch hardware system; using a lightweight neural network prediction model to predict the future state of the system in real time; constructing a model predictive control optimization problem based on the prediction model and solving it in parallel using the alternating direction multiplier method to generate optimal valve commands; introducing feedforward compensation to suppress nonlinear errors when executing commands; dynamically switching branches according to flow demand to achieve smooth transitions; and updating the prediction model online through an incremental learning mechanism. This invention eliminates the dependence on precise mathematical models, significantly improving the accuracy, response speed, and adaptability to a wide range and multiple operating conditions of hydrogen flow control, making it suitable for hydrogen fuel cell engine systems.

The utility model relates to a kind of non-excavation light curing repair hose manufacturing technical field, specifically to a kind of light curing hose forming machine. Including the conveying assembly for pushing multiple layers of flat cloth, the cloth folding assembly for the layering folding of multiple layers of flat cloth, cloth folding assembly is located above conveying assembly, cloth folding assembly is fixedly connected with conveying assembly. The utility model is sequentially arranged in conveying direction by multiple cloth folding units (each unit corresponds a layer of cloth), realizes the continuous, sequential folding (from top to bottom) of multiple layers of flat cloth, avoids the low-efficiency problem of traditional manual or single-layer processing, significantly improves production efficiency, and can handle multiple-layered structure simultaneously, facilitating subsequent sewing into hose. Conveying assembly promotes cloth movement, and cloth folding assembly automatically completes folding, without interrupting the process, reducing manual intervention.

This invention provides a device for chemical dewatering of sludge in wastewater treatment plants, comprising a treatment box with a chemical tank mounted on top. A rotating base plate is rotatably connected to the bottom of the chemical tank. Debris shovels are fixedly connected to both sides of the bottom of the chemical tank. A support frame is fixedly connected to one side of each debris shovel. Rolling rollers are rotatably connected to both sides of the support frame. A stirring motor is fixedly connected to one side of the chemical tank. A stirring component is fixedly connected to the power output end of the stirring motor. The bottom of the stirring component is fixedly connected to the rotating base plate, and a drive gear ring is fixedly connected to the bottom of the stirring component. The stirring motor drives the stirring component and the rotating base plate to rotate, mixing the chemical powder with warm water within the chemical tank. Undissolved lumps are squeezed into an arc-shaped area by the debris shovels, while the drive gear ring meshes with the rolling gears, driving the rolling rollers to rotate and crush the lumps outwards. This ensures thorough pulverization and fusion of the chemical powder, preventing lumps from entering the wastewater treatment system and improving mixing efficiency and chemical powder utilization.

This invention discloses a variable cross-section double-span rotating beam balance support structure suitable for soft soil foundations, relating to the field of support structure technology. It includes a support frame and a buffer assembly. The support frame has a rotating assembly mounted on its upper side, with a toggle assembly installed inside the rotating assembly. The rotating assembly and the toggle assembly are connected. Four corresponding fixing assemblies are installed inside the support frame, and the rotating assembly is connected to the four fixing assemblies. A fastening assembly is mounted on the front side of the toggle assembly. The buffer assembly includes a mounting frame, a damping disc, a first spring, a connecting rod, and a fixing frame. The mounting frame is fixed to the upper side of the support frame. By integrating buffering, fixing, splicing, and rotating assemblies, it effectively absorbs vibration and impact energy from the soft soil foundation, preventing uneven settlement and tilting of the beam, and improving the balance, stability, and efficiency of the rotating construction.

The utility model belongs to the technical field of frequency converter heat dissipation, especially relates to a frequency converter water cooling heat dissipation device, including heat exchanger, expansion tank, water pump, outlet water line, water cooling plate, backwater line, fan, outlet water line is connected with expansion tank, outlet water line is connected with water cooling plate, water cooling plate is connected with backwater line, backwater line is connected with heat exchanger, heat exchanger is connected with expansion tank through pipeline, water cooling plate is fixedly connected with frequency converter, the fan sets up in the outside heat exchanger, and the heat of heat exchanger is blown to the outside cabinet. Advantages are: flexible and reasonable structure, the water cooling plate and frequency converter can be integrated design, according to the frequency converter installation environment and heat dissipation demand adjustment water cooling plate and the arrangement of pipeline, can satisfy the need of compact structure layout, save space. The heat dissipation device is small, adopts integrated design to make this water cooling heat dissipation system be able to adapt to various space limited installation environment, especially suitable for using in compact industrial equipment.

The invention discloses a method for synthesizing silica sol by adopting a loop reactor and a method for synthesizing silicon dioxide. The vacuum suction feeding mode of the Venturi jet mixer in the loop reactor is adopted, and the system has the advantages that no return gas exists, the blockage and corrosion phenomena caused by return gas of the raw material silicon tetrachloride and the by-product hydrogen chloride are avoided, and the system can stably run for a long time. Compared with the problem of product agglomeration caused by violent reaction, mass transfer and untimely mixing of silicon tetrachloride liquid-phase hydrolysis in a traditional tank reactor, high-speed water flow shears sucked gaseous silicon tetrachloride into fine bubbles and forms turbulent flow, the gas-liquid mixing effect is enhanced, the water amount at the two-phase mixing position is always excessive, and the reaction time is shortened. The problem that the concentration of local silicic acid is too high to cause polycondensation to generate agglomerates is avoided, and homogeneous silica sol can be obtained. The yield of silicon dioxide is greater than 93% and is far greater than the yield in a traditional tank reactor.

The application discloses a kind of based on single drive photovoltaic panel biaxial tracking system of compliant mechanism, including data acquisition module, control circuit and flexible tracking mechanism, the control circuit includes control and computing unit, steering wheel controller and drive motor, the drive motor is connected with flexible tracking mechanism;The acquisition module will be collected photovoltaic panel parameter, GPS positioning, weather forecast and the height angle and azimuth angle information of sun, by wireless communication transmission to control and computing unit;The control and computing unit drives steering wheel controller and drive motor by tracking algorithm, and then controls compliant tracking mechanism, ensure that photovoltaic panel real-time alignment sun.The flexible tracking mechanism of the application adopts 3D integrated printing technology, simplifies transmission mechanism design, reduces cost, improves mechanical life, reduces maintenance requirement;And can automatically switch working mode according to weather condition, enhances stability and adaptability, improves robustness.

This utility model relates to the field of detector technology, specifically to a glass fiber filament breakage detector, comprising: a base; a steering mechanism including a universal joint, a locking part, and a steering part, wherein the universal joint is fixedly connected to the base, the steering part is rotatably connected to the universal joint, and the locking part is located on one side of the steering part and rotatably connected to the steering part; a support mechanism fixedly connected to the universal joint; and a pneumatic detection mechanism locked to the support mechanism. This utility model solves the problem of detection accuracy attenuation caused by the collection process, ensuring the continuous accuracy of filament breakage detection.

The invention relates to the technical field of pig farm monitoring systems and methods based on intelligent sensors, and particularly discloses a pig farm monitoring system and method based on intelligent sensors. The system comprises an environment sensing module, a data processing and compensation module, a control decision module and an execution mechanism module. According to the method, the multivariable compensation model fusing the temperature, the humidity and the air pressure is constructed and applied to dynamically correct the output signal of the electrochemical ammonia gas sensor in real time, so that systematic measurement drift caused by a water molecule adsorption effect caused by a high-humidity environment is fundamentally stripped. By means of the technical measure, the system can obtain the ammonia gas concentration value highly close to the real situation, an accurate and reliable data basis is provided for subsequent environment regulation and control decisions, and equipment misoperation caused by sensor misinformation is avoided.

This invention discloses a high-pressure hot water thermal energy storage phase change constant-pressure system and method for compressed air energy storage power stations, belonging to the field of compressed air energy storage. It includes an atmospheric pressure cold water storage tank, at least one high-pressure hot water storage tank, an energy storage heat exchanger, an energy release heat exchanger, a cold water circulation pump, and a constant-pressure system. A steam space is reserved at the top of the high-pressure hot water storage tank. The constant-pressure system includes a condenser and a high-pressure hot water buffer tank. The constant-pressure system maintains the pressure stability inside the high-pressure hot water storage tank by condensing steam and buffering pressure fluctuations. During energy release, the hot water is driven by the steam pressure inside the high-pressure hot water storage tank, eliminating the need for a hot water circulation pump. This invention, through cold and hot water separation, steam phase change constant-pressure design, and a pump-free design, significantly reduces the number and pressure levels of high-pressure hot water storage tanks, lowers equipment investment, and simultaneously improves thermal storage temperature and system efficiency, providing an efficient and economical solution for the large-scale application of compressed air energy storage power stations.

The utility model provides a mining low-voltage cabinet with a cable auxiliary plugging function, which comprises a mining low-voltage cabinet assembly. The mining low-voltage cabinet assembly comprises a mining low-voltage cabinet main body, a back plate arranged on the front surface of the mining low-voltage cabinet main body, a cooling fan arranged on the surface of the back plate, a connector arranged on the surface of the back plate, a connecting wire arranged on the front surface of the connector, and an auxiliary plugging assembly. According to the utility model, through the mutual arrangement of the mining low-voltage cabinet assembly and the auxiliary plugging assembly, the cable connector is driven by the motor to rotate, plug and unplug, so that the safety performance of operators is improved, and the safety of the operators is improved. The situation that time and labor are wasted by manual operation is prevented, the stability and durability of the auxiliary plugging assembly are improved, the maintenance requirement is reduced, the service life of the auxiliary plugging assembly is prolonged, and therefore the overall reliability of the auxiliary plugging assembly is improved.

The utility model relates to automatic door technical field, concretely for the automatic door drive mechanism of many connecting rod synchronous drive, including door frame, the right side of door frame inner wall is equipped with fixed door, the top of door frame is equipped with the top plate, the front side of top plate is equipped with the guide rail, and the guide rail is movably connected with sliding assembly, and the bottom of sliding assembly is equipped with movable door, the front side of top plate and the position close to top are equipped with motor, and the output shaft of motor is movably connected with sliding assembly through connecting rod component. The automatic door drive mechanism of many connecting rod synchronous drive, through motor drive driving push rod and driven connecting rod's linkage, will convert into translation motion for rotary motion, avoided the tooth surface abrasion or fracture problem that the gear and the rack led to because of long -term meshing, improved the durability of transmission component significantly, reduced the maintenance demand.