338results about How to "Affect stability" patented technology

The invention belongs to the technical field of distributed energy storage control, and discloses an optimized operation method and system for a multi-network-constructed energy storage system, and the method comprises the steps: carrying out the equivalence of the multi-network-constructed energy storage system, and obtaining an equivalent energy storage system; wherein the equivalent energy storage system comprises an isomorphic network-following converter, an equivalent impedance R and an ideal voltage source which are sequentially connected in series; based on the equivalent energy storage system, obtaining a small signal stability boundary condition by adopting a Routh criterion; and taking the minimum operation cost as an objective function, solving the objective function under operation constraints including small signal stability boundary conditions, and obtaining J and D of each network construction type converter at different moments, so that each network construction type converter operates under the corresponding J and D. The method is suitable for optimized operation configuration of an energy storage system comprising a plurality of network following-constructing converters, and can effectively promote advantage complementation of renewable energy sources and energy storage, thereby improving system stability and operation economy.

The invention discloses an unmanned vehicle cluster control method and system based on dynamic master-slave switching. The method comprises the following steps: initializing unmanned vehicles, selecting a formation, and determining the initial position and speed of each unmanned vehicle; state data of the unmanned vehicle are collected and monitored, a fitness function value is calculated, and whether main vehicle switching needs to be carried out or not is judged; establishing a multi-layer fitness evaluation method, identifying a vehicle which is most suitable for being used as a new main vehicle, and generating a switching preparation signal; the original main vehicle and the candidate main vehicle are coordinated, and role conversion is carried out through smooth transition; and after master-slave switching is completed, readjusting the formation pattern based on an obstacle avoidance and regression algorithm of a dynamic window. The system comprises a communication architecture module, an initialization module, a decision module, a switching preparation module, a smooth transition module and an adjustment module. According to the invention, by introducing a flexible switching mechanism and a self-adaptive control strategy, the problems of main vehicle selection and calculation load transfer of the current unmanned vehicle cluster are solved.

The invention relates to the technical field of logistics trays, and discloses logistics tray positioning equipment which comprises a tray body, a buffering mechanism is arranged at the bottom in the tray body, a positioning mechanism is arranged at the top of the buffering mechanism, a rotating mechanism is arranged at the bottom of the tray body, and the positioning mechanism comprises a positioning assembly and a limiting assembly. The positioning assembly is arranged at the top of the buffering mechanism, and the limiting assembly is arranged on the left side of the tray body. During use, through the positioning assembly, when goods need to be placed through the tray body and transported, the goods can be placed on the placing table, and the goods can be conveniently conveyed; the placing table can move downwards under the weight pressure of the goods, the rack can be driven to move in the moving process of the placing table, the rack drives the gear to rotate, the supporting column, the clamping plate and the limiting plate can be driven to rotate through the rotating rod under the action of the gear, and the supporting column and the clamping plate are located on the left side and the right side of the goods.

The invention relates to the technical field of battery pack shell processing, in particular to new energy automobile battery pack shell integrated punch forming equipment. Comprising a bottom plate, a workbench is installed at the upper end of the bottom plate, a portal frame fixedly connected with the workbench is erected above the workbench, a male die unit is arranged at the lower end of a horizontal section of the portal frame, a female die unit is arranged at the upper end of the workbench, and a limiting assembly used for circumferentially limiting a plate is arranged at the upper end of the workbench. The limiting assembly is adopted for conducting centering alignment and circumferential limiting on a plate before stamping, and it can be guaranteed that the plate is kept at the fixed and accurate position in the stamping process; the contact area of the male die unit and the female die unit with a punch-formed shell can be reduced through the inward shrinkage assembly and the outward expansion assembly, the friction force and the adsorption force between the male die unit and the shell and between the female die unit and the shell are reduced, the situation that the shell deforms due to external force in the demolding process is avoided, a smoother demolding path can be formed easily, and the demolding quality is improved. The forming quality and the demolding efficiency are improved.

The utility model discloses a combined stamping die, and relates to the technical field of stamping dies. The die comprises a bottom plate, a supporting table is arranged on the bottom plate, a female die is arranged on the supporting table, a groove is formed in the female die, a top plate is arranged in the groove, a plurality of vent holes communicated with the groove are formed in the bottom face of the female die, air inlet holes communicated with the vent holes are formed in the supporting table, and four electric push rods used for driving the top plate to slide are arranged on the bottom plate. A hydraulic mechanism is arranged on the bottom plate, and a male die is arranged at the output end of the hydraulic mechanism. According to the utility model, the top plate is pushed to slide upwards by the electric push rod, and after the square plate body at the lower part of the top plate completely slides out of the square groove at the lower part of the groove, air enters the groove through the air inlet hole and the vent hole to balance the pressure in the groove, so that the resistance of the top plate for pushing a model to demould is conveniently reduced; and the top plate is inclined while sliding on the dovetail block through the electric push rod, and the model on the top plate automatically slides away, so that the model can be quickly demoulded.

The invention relates to the technical field of grinding machines, and discloses an intelligent full-automatic unmanned double-disc grinding machine which is characterized in that a bottom fixing plate is fixedly connected to the bottom face of a protective frame, a wheel fixing frame is arranged over the bottom fixing plate, wheels are installed on the bottom face of the wheel fixing frame, and frame lifting rods are fixedly connected to the upper surface of the wheel fixing frame; the lifting rod is hinged to the surface of the bottom fixing plate, the hydraulic cylinder is fixedly connected to the interior of the lifting plate, the lifting groove base is slidably connected to the side face of the lifting rod, the induction radar is fixedly connected with the transverse table plate, and the wheel fixing frame is slidably connected with the side connecting rod. The protective frame of the device is convenient to move through the wheels, the wheel storage position adopts the protective frame built-in space, and the device is more practical in combination with the actual situation of field use under the condition that the external structure and the overall layout are not changed.

The utility model relates to the technical field of conveying belts, and discloses an anti-deviation conveying belt which comprises a supporting frame, two installation side plates are arranged on the two sides of the top of the supporting frame in parallel at intervals, transmission roller assemblies are installed at the two ends between the two installation side plates in a matched mode, and a conveying belt is installed between the outer sides of the circumferences of the two transmission roller assemblies in a matched mode. The transmission roller assembly comprises a roller body, the two ends of the roller body are connected to the inner sides of the two installation side plates in a rotating fit mode respectively, the position, corresponding to one roller body, of the outer side of one installation side plate is fixedly provided with a servo motor, and an output shaft of the servo motor is fixedly connected with one end of the corresponding roller body. According to the utility model, the transmission roller assembly and the conveyor belt are improved, so that the T-shaped flanges and the T-shaped grooves are matched to form a limiting effect, the conveyor belt is prevented from deviating in the rotating process, the effect is obvious, the structure is simple, the manufacturing is easy, the loss caused by deviation of the conveyor belt is avoided, and the economic benefits of enterprises are improved.

The utility model provides a measuring mechanism for road and bridge construction, which belongs to the technical field of road and bridge construction and comprises a shell, an automatic total station is fixedly arranged on the upper surface of the shell, and a supporting cylinder and a supporting transmission assembly are fixedly connected to the bottom surface of the shell. The supporting transmission assembly comprises a first sleeve and a second sleeve which are fixedly connected to the bottom face of the shell, supporting rods are slidably connected into the first sleeve and the second sleeve, and the inner wall of the first sleeve and the inner wall of the second sleeve are each provided with two limiting sliding grooves. According to the utility model, through the arrangement of the supporting transmission assembly, power can be provided for subsequent cleaning while a certain supporting effect is provided for the measuring mechanism, so that more trouble and labor are saved, the device is more environment-friendly, and through the arrangement of the cleaning assembly, the cleaning work on the placement ground can be completed while the mechanism is placed, so that the working efficiency is improved. And the accuracy of a measurement result is ensured.

The utility model belongs to the technical field of video acquisition, and particularly relates to a video acquisition device with a protection function, which comprises a box body, a waterproof device is arranged on the outer wall of the box body, a storage groove is formed in the box body, the bottom of the storage groove is fixedly connected with an electric telescopic rod, the electric telescopic rod is fixedly connected with a supporting plate, and the supporting plate is fixedly connected with the waterproof device. And a video acquisition device body is bolted on the supporting plate. According to the video acquisition device with the protection function, an electric telescopic rod drives a supporting plate to conduct transmission, so that the telescopic rod is driven to conduct transmission, the telescopic rod is connected into a sliding groove sleeve in a sleeved mode through a supporting ladder, and then a hinge rod set arranged on a fixing frame is driven to contract; and when the video acquisition device body finishes working and is retracted into the storage groove, the hinge rod group drives the brush to clean the lens of the video acquisition device body, so that the situation that dust falls on the lens for a long time, and reuse of the video acquisition device body is affected is avoided.

The invention discloses a resource exploration marking trolley with good trafficability, the resource exploration marking trolley comprises a bottom plate, the bottom of the bottom plate is in contact with four uniformly distributed wheel carriers, the inner side of each wheel carrier is hinged with a moving wheel, the top of the bottom plate is fixedly connected with a barrel body, the top of the barrel body is fixedly provided with a cover plate through bolts, and the cover plate is fixedly connected with the bottom of the bottom plate through bolts. A feeding port is fixedly connected to the interior of the upper end of the cover plate, a handrail is fixedly connected to the right end of the bottom plate, an anti-skid sleeve is arranged on the handrail, a fixing base is fixedly connected to the position, located at the right end of the barrel body, of the top of the bottom plate, a hydraulic cylinder is fixedly connected to the top of the fixing base, and the output end of the hydraulic cylinder is slidably connected with the fixing base; an adjusting mechanism is arranged on the wheel frame, and a marking mechanism is arranged on the can body. The invention relates to a resource exploration marking trolley with good trafficability. The marking trolley has the advantages of being high in moving trafficability, good in marking effect and not prone to drifting away.

The invention relates to the technical field of manufacturing of turbocharger bearings, in particular to a thrust bearing for a turbocharger, which comprises a ring body, a thrust ring, a thrust ring and a thrust ring, the multiple thrust tables are arranged on the axial end face of the ring body, and the multiple thrust tables are arranged in the circumferential direction of the shaft cavity; the oil film grooves are located between the adjacent thrust tables in the circumferential direction of the shaft cavity, and the oil film grooves are sunken in the thrust tables in the axial direction; the oil baffle wall is positioned between the oil film groove and the radial direction of the shaft cavity; the oil inlet groove is formed in the ring body and penetrates through the oil blocking wall, one end of the oil inlet groove is communicated with the oil film groove, and the other end of the oil inlet groove is communicated with the shaft cavity. The lubricating stability of the thrust end of the thrust bearing is improved, and the service life of the thrust bearing is prolonged.

The invention discloses a configuration issuing verification method and device for an SDN (Software Defined Network) controller and a medium. The method comprises the following steps: the SDN controller extracts a service type and a device type from service data; converting the service data according to the service type and the equipment type to generate a recognizable command line; in a command template database, matching the service type with the equipment type to obtain a target command template; according to the target command template, performing configuration integrity verification on the recognizable command line; performing data correctness verification on the recognizable command line according to the service data; performing configuration conflict verification on the recognizable command line according to the historical configuration content; and when the configuration integrity check, the data correctness check and the configuration conflict check are all passed, performing configuration issuing on the recognizable command line. And the configuration issuing accuracy can be effectively ensured.

The application discloses an electric vehicle charging protection device, which comprises a main body, a shielding part and a movable part, wherein the shielding part and the movable part are fixed on the main body; a controller, a button and a connecting port are arranged on the main body, the controller is connected with an external power supply and an electric device through the connecting port; a sleeve is arranged at the lower end of the shielding part, a connecting rod is arranged at the upper end of the main body, the shielding part is inserted into the sleeve through the connecting rod and is fixed at the upper end of the main body, so as to cover the button and the connecting port; the movable part comprises a support, a rotating block and a motor, the motor is fixed in the shielding part through the support, one end of the rotating block is connected with a driving end of the motor, the motor drives the rotating block to rotate and generates centrifugal force; the button and the motor are electrically connected with the controller. Through the arrangement of the shielding part and the movable part, the movable part drives the shielding part to move, the rotating block rotates and generates centrifugal force to make the accumulated snow above the shielding part fall off, the situation that the shielding part is deformed due to too much accumulated snow is avoided, and the safety and stability of the electric vehicle charging protection device are improved.

The utility model provides a double-layer oil tank body structure which comprises an outer-layer tank, a base is fixedly installed at the bottom of the outer-layer tank, an inner-layer tank is fixedly installed in an inner cavity of the outer-layer tank, the left side of the inner-layer tank is communicated with an oil pipe, and the oil pipe penetrates through the inner surface of the outer-layer tank and extends to the outer side of the outer-layer tank. An L-shaped plate is fixedly mounted on the left side of the base, a cooling mechanism is arranged at the top of the outer-layer tank and comprises a refrigerator, and a stirring mechanism is arranged on the right side of the L-shaped plate. By arranging the stirring mechanism, stirring blades can stir cold water in an inner cavity of the outer-layer tank, the higher the rotating speed of the stirring blades is, the higher the speed of the cold water driven by the stirring blades to pass through the surface of the inner-layer tank is, and then the cold water can conduct rapid heat exchange on the temperature in the inner-layer tank; and heat in the inner tank can be taken away through the flowing speed of the cold water, so that the heating inner tank can achieve a rapid cooling effect.

The application relates to the technical field of wind power generation, and discloses a wind turbine design method adopting a frictional tuned mass damper, which adds a frictional tuned mass damper to a man platform in a tower drum of a wind turbine, establishes a motion equation of the wind turbine after adding the frictional tuned mass damper based on a structural dynamics principle, deduces a mathematical analytic expression of a system dynamic coefficient, and obtains parameters of the frictional tuned mass damper through a system optimization theory. The application solves the problems that the prior art is difficult to realize damping through the tuned mass damper in the narrow space in the cabin or the tower drum, and the damping control effect is poor.

The utility model discloses a kind of traction devices for cable laying, including traction assembly, the traction assembly is installed on mobile base, and wire arrangement assembly is also installed on mobile base;The traction assembly includes two parallelly arranged side plates, lifting frame is vertically slidably installed between two side plates, and lifting drive mechanism that drives lifting frame to act up and down is installed on side plate;Two traction wheels are vertically arranged side by side on lifting frame, and the upper end and the lower end of traction wheel are respectively installed on upper sliding block and lower sliding block, and upper sliding block and lower sliding block are horizontally slidably installed on lifting frame;Telescopic cylinder is installed on the top of lifting frame, and the piston rod of telescopic cylinder is vertically and downward fixedly connected on the top block, and the top block is matched with two upper sliding blocks.This device can adapt to the laying installation of different size cable, and can effectively avoid the swing problem when cable traction transmission through wire arrangement assembly, so as to significantly improve cable laying efficiency and device running stability.

The utility model discloses an environment-friendly dust falling device convenient to adjust, and relates to the technical field of dust removal environment-friendly equipment, the device comprises a bottom plate, a pressurizing atomizing nozzle is arranged above the bottom plate, a base is arranged on the bottom plate, a first fixing plate is arranged above the base, a damping mechanism is arranged between the first fixing plate and the base, and a second fixing plate is arranged above the damping mechanism. A second fixing plate is arranged above the first fixing plate, a rotating mechanism is arranged between the second fixing plate and the first fixing plate, an angle adjusting mechanism is arranged at the position, located below a pressurized atomization nozzle, of the upper end of the second fixing plate, the pressurized atomization nozzle can spray water mist, and dust raised in the construction process is removed; the damping mechanism can improve the stability in the dust removal process, the rotating mechanism can conduct transverse angle adjustment on the dust removal device, the dust falling range is widened, the angle adjusting mechanism can conduct longitudinal angle adjustment on the pressurization atomization spray head, the dust falling area is increased, and the dust falling effect is improved.

The invention relates to the related technical field of health information monitoring, and discloses integrated health information monitoring equipment and a use method thereof, the equipment comprises a monitor body, and the monitor body is internally provided with an air inlet end, a processing assembly, a condenser, a sensor, a fan and an air outlet end in sequence. The treatment assembly comprises a shell, a cavity unit capable of rotating in the circumferential direction is arranged in the shell, a baffling channel is formed in the cavity unit, and a filtering assembly with a filtering state and a cleaning state is arranged on the baffling channel. The filtering assembly comprises a first arc-shaped filtering plate forming a rough filtering unit and a second arc-shaped filtering plate forming a fine filtering unit. The cavity unit is driven by the driving assembly to rotate, so that the filtering assembly is switched between the filtering station and the cleaning station; the filter resistance change is detected through the differential pressure detector, and when the filter assembly is located at the cleaning station, the cleaning assembly applies reverse airflow to the filter assembly for cleaning.

The road engineering repairing device comprises a vehicle body, a stirring tank is installed at the top end of the vehicle body, a connecting pipe is arranged between the stirring tank and the interior of the vehicle body, and a screw rod is arranged between the stirring tank and the interior of the connecting pipe; an adjusting mechanism is arranged at the bottom end of the connecting pipe, and a lifting assembly is arranged on one side of the top end of the vehicle body. The adjusting mechanism comprises a discharging hopper rotationally connected to the bottom end of the vehicle body, a discharging pipe is installed at the bottom end of the discharging hopper, a first gear is fixedly connected to the outer side of the discharging hopper, a rotating rod is rotationally connected to one side of the bottom end of the vehicle body, and a second gear is installed on the outer side of the rotating rod. Therefore, the angle of the discharging pipe can be rotationally adjusted, the raw material supplementing range is greatly increased, the road repairing efficiency is improved, and the phenomenon that the whole device needs to be moved again due to the fact that a discharging opening cannot be adjusted in the prior art can be solved.

The utility model relates to the field of metal part machining, in particular to a welding device for laser metal part machining. Comprising a box body, a box door, a welding mechanism, a transmission rod, a driving mechanism, a driving gear and the like, a box door is arranged on the box body, a welding mechanism is arranged on the top of the inner side of the box body, a transmission rod is rotatably arranged in the box body, a driving mechanism used for rotating the transmission rod is arranged in the box body, two driving gears are slidably arranged on the transmission rod, the transmission rod can drive the two driving gears to rotate, and air cylinders are arranged on the two sides in the box body. Pistons of the two air cylinders are connected with the two connecting frames respectively. The driving mechanism drives the transmission rod to rotate, so that the metal part is turned over, the welding mechanism can weld the metal part at different angles, a metal plate does not need to be repeatedly disassembled and fixed, and the welding efficiency is improved.

The application provides a sensitivity-based energy storage charging and discharging strategy method, and relates to the technical field of power system energy storage, which comprises the following steps: obtaining current section flow data and current section flow limit value, and judging whether there is a current overload / limit-exceeding section according to a preset overload / limit-exceeding standard; receiving an energy storage charging and discharging request, obtaining energy storage section sensitivity, and determining whether to allow energy storage charging and discharging operation in combination with the judgment result; if energy storage charging and discharging operation is allowed, calculating the maximum charging and discharging power; constructing a short-term load prediction model to determine predicted section flow data; constructing an energy storage charging and discharging strategy to calculate the predicted section flow change amount, and then obtaining simulated section flow data in combination with the predicted section flow data; judging whether there is a future overload / limit-exceeding section again according to the preset overload / limit-exceeding standard, and adjusting the energy storage charging and discharging strategy, so that the real-time performance and adaptability of energy storage charging and discharging can be improved, the energy storage utilization efficiency can be improved, and the safe operation of the power grid can be ensured.

The utility model relates to a water-based ink storage device, and aims to solve the technical problems that an existing water-based ink storage device easily causes ink separation and easily causes water-based ink deterioration due to change of external temperature, the water-based ink storage device comprises a tank body, and a stirring mechanism is arranged on the tank body in a penetrating manner; the tank body is provided with the tank shell, the inner container and the heat preservation layer, the influence of the external temperature on water-based ink is reduced, the motor drives the lantern ring to rotate and the half-tooth gear to rotate, the teeth and the half-tooth gear are meshed with the gear to drive the rotating shaft and the stirring rod to rotate in the inner cavity of the inner container in a reciprocating mode to stir the ink, and the ink is prevented from being separated; the air pressure in the tank body is high, the air jacks the piston upwards to enable the piston to move towards the top of the sleeve, the spring is compressed, the piston moves to the top of the communicating end of the exhaust pipe and the sleeve, the air pressure in the tank body can be exhausted from the exhaust pipe, and when the air pressure in the tank body is stable, the spring resets to drive the piston to descend to the bottom of the sleeve to keep the sealing performance of the tank body.

The utility model relates to the technical field of decorative lamps, and discloses a dustproof device of a decorative lamp, which is characterized in that a storage battery is arranged on the inner side of a mounting seat, a wire clamping plate is arranged on the top surface of the mounting seat, a ventilation frame is arranged on the side surface of a fixing sleeve, compaction plates are arranged at two ends of the ventilation frame, a fixing frame is arranged on the side surface of the fixing sleeve, and a ventilation door is arranged on the front surface of the fixing frame; drying plates are arranged on the inner sides of the ventilation frames. According to the dustproof device of the decorative lamp, the lampshade is fixedly connected with the fixing sleeve through threads, when the lamp pole and the lamp bead are overhauled, a user can directly take down the lampshade to overhaul the lampshade, the situation that the stability of a bolt is affected by the fact that the user disassemble and assemble the mounting base many times is avoided, and therefore the practicability of the device is improved; and dust is prevented from falling on the top face of the mounting base, the cleaning difficulty of workers is improved, a user directly uses a sweeping brush to clean dust falling on the side edges of the fixing sleeve and the lampshade, and then the cleaning difficulty of the decorative lamp is reduced.

The suspension double lug connecting structure positioning device comprises a driving assembly and a positioning assembly connected with the driving assembly, the double lug connecting structure comprises a double lug female end and a double lug male end, the positioning assembly comprises a positioning seat, the positioning seat is arranged on both sides of the double lug female end, guide blocks are arranged on the positioning seat, the guide blocks are located on both sides of the double lug male end, the positioning assembly and the guide blocks can facilitate assembly and positioning of the double lug female end and the double lug male end, the positioning seat can be flexibly adjusted according to the size of the double lug connecting structure and the assembly tolerance, the accurate alignment between the double lug female end and the double lug male end is effectively ensured, unnecessary stress concentration is avoided, and the problem that the performance of the suspension and the stability of the vehicle are affected by assembly errors is effectively avoided.

The utility model relates to a turning buckle structure for fixing an aluminum handle, which belongs to the technical field of electric aluminum bars and comprises a battery base, a plurality of accommodating cavities for storing batteries are arranged on the upper side of the battery base, and a plurality of turning buckle structures are arranged on the upper side of the battery base. The turning buckle structure comprises a turning buckle groove formed in the upper side of the battery base, a clamping groove is formed in the side wall of the turning buckle groove, and a material ejecting assembly moving on the inner side of the turning buckle structure is arranged on the lower side of the battery base. The material ejecting assembly comprises a pushing plate arranged at the bottom of the overturning and buckling groove and an ejecting rod which is fixedly arranged on the lower side of the pushing plate and penetrates through the battery base in a sliding mode, and an ejecting plate is fixedly arranged at the lower end of the ejecting rod. And therefore, the cover plate is pushed out from the upper side of the overturning and buckling groove, the cover plate is convenient to open, the battery is convenient to overhaul or replace, and the disassembly efficiency is improved.

The invention belongs to the technical field of double-screw type film blowing equipment, and discloses double-screw type film blowing production forming equipment which comprises a double-screw film blowing device. The film blowing air ring is arranged on the right side of the top of the double-screw film blowing device; the supporting frame is arranged on the right side of the top of the double-screw film blowing device and above the right side of the film blowing air ring. According to the technical scheme, by arranging the trigger rod and the air cavity ring, when the double-screw film blowing device extrudes and cools materials and is located below the film blowing air ring, film blowing can be carried out to enable film bubbles in the inner cavity of the film blowing air ring to expand, then the two air grooves are extruded to move oppositely, and at the moment, negative pressure can be generated in the inner cavity of the inner side of the trigger rod; the negative pressure acts on the first connecting air channel, the metal hose and the inner cavity of the air cavity ring, so that the outer side of the bottom of the bubble is tightly sucked, limited and fixed by the first air hole when the air cavity ring is communicated with the first air hole subsequently, and the influence of vibration on the stability of the bubble is avoided.

The utility model relates to the technical field of winding equipment, and discloses a winding device for a carbon-coated aluminum foil, which comprises a base, a winding device and a winding device, the deviation rectifying mechanism is arranged at the top end of the base; the deviation rectifying mechanism comprises a fixing frame, the bottom end of the fixing frame is fixedly connected with the top end of the base, a driving motor is fixedly installed on the fixing frame, and an output shaft of the driving motor is fixedly connected with a screw in a sleeved mode. According to the winding device for the carbon-coated aluminum foil, due to the design of the deviation rectifying mechanism, the defects in the prior art are effectively overcome, the guide plate can be flexibly adjusted according to the size specification of the carbon-coated aluminum foil, the winding device can be matched with both narrow-width aluminum foil and wide-width aluminum foil, the application range of the winding device in diversified production scenes is greatly expanded, and the winding device is suitable for popularization and application. And the aluminum foil is effectively prevented from deviating, wrinkling and the like in the winding process, the winding quality is greatly improved, and then the performance and production efficiency of the lithium ion battery are guaranteed.

The utility model discloses an adjusting device for sliding contact line connection, which belongs to the technical field of sliding contact lines and comprises a copper head sliding contact line, a steel base is slidably connected in the copper head sliding contact line, adjusting plates are in threaded connection with the middles of the two sides of the steel base through bolts, stress plates are fixedly connected with the bottom ends of the two sides of the steel base, and the stress plates are in threaded connection with the steel base through bolts. A mounting groove is formed in the middle of one side of the stress plate, and a heat dissipation assembly is fixedly connected to the position, located on the edge of the mounting groove, of one side of the stress plate. Through the arrangement of the steel base, the adjusting plate and the bolt, a gap is reserved between the adjusting plate and the steel base so as to adapt to the deformation of the copper head sliding contact wire, so that the copper head sliding contact wire always has good contact, and the phenomena that resistance is increased, the power transmission efficiency is reduced, sparks and even safety accidents are caused, and the production stability and safety are influenced are avoided; the dustproof net can prevent dust from affecting normal operation of the induced draft fan, and the induced draft fan can accelerate heat dissipation of the surface of the copper head sliding contact line.

The utility model relates to the technical field of distribution box equipment, in particular to a closed low-voltage distribution box with a negative-pressure dust collection function. The utility model provides the closed low-voltage distribution box with the negative-pressure dust collection function, which can maintain the normal operation of electrical equipment. A closed low-voltage distribution box with a negative-pressure dust collection function comprises a mounting rack, a cabinet body, a door plate and the like, the upper part of the mounting rack is connected with the cabinet body, and the right part of the front part of the cabinet body is rotatably connected with the door plate. According to the utility model, through cooperation between the dust collector and the dust collection box, dust in the cabinet body can be rapidly cleaned, thereby preventing dust accumulation from influencing normal work and heat dissipation of electrical equipment, and improving operation stability of the electrical equipment.