36results about How to "Quiet operation" patented technology

The utility model discloses a sliding rail fixing seat which comprises a base, a left clamping groove, a right clamping groove and a convex part, the left clamping groove and the right clamping groove are symmetrical, and an upper protrusion is located in the middle of the upper end of the convex part. In addition, due to the convex piece structure and the supporting ribs of the left clamping groove and the right clamping groove, the material cost is greatly reduced. On the other hand, the utility model discloses a sliding rail matched with the sliding rail fixing seat, which comprises a combination of a first guide rail, a second guide rail and a guide rail connecting piece, the rail is easy to bend through the combination, the production process is simplified, a bottom groove at the bottom of the guide rail connecting piece can accommodate a fixing screw, the influence on pulley running is avoided, and the center of the guide rail connecting piece is conveniently and accurately found; and the silent rail and other structures are further arranged, so that the pulleys and the belt run more smoothly and quietly.

The invention discloses a liquid metal-based vibration suppression and noise reduction cooling motor structure, which comprises a shell, a motor stator and a motor rotor, and is characterized in that the interior of the shell is of a hollow structure, the inner surface and the outer surface of the shell are covered with honeycomb structure units, and the interior of the hollow shell is divided into an upper semicircular ring layer cavity and a lower semicircular ring layer cavity; cavities of the upper and lower semicircular ring layers are filled with liquid metal; liquid metal-based magnetofluid is filled between the casing and the motor stator, and sealing rings are arranged at the two axial ends, in contact with the internal honeycomb structure, of the stator core. The honeycomb structures are designed on the inner surface and the outer surface of the shell, filling of the liquid metal and application of the liquid metal-based magnetofluid are combined, the heat dissipation performance of the motor is remarkably improved, the liquid metal-based magnetofluid plays a vibration reduction role between the stator and the shell, vibration impact in the operation of the motor is relieved, and the service life of the motor is prolonged. Noise generated during operation of the motor can be absorbed and attenuated, noise propagation is further reduced through an interference path of the honeycomb structure, and the motor can operate more quietly and stably.

This utility model discloses a bottom structure for a dishwasher and the dishwasher itself. The bottom structure is adapted to be arranged on the lower side of the inner tub. The bottom structure includes a base, a flow guide, and a sound insulation plate. A hinge seat is provided on the base. At least a portion of the flow guide is located on the upper side of the base. The sound insulation plate is located on the upper side of the base and is connected to at least one of the flow guide and the hinge seat. According to the bottom structure of the dishwasher of this utility model, by setting a sound insulation plate that cooperates with the flow guide, the noise generated by the water flow impacting the bottom of the inner tub and the motor pump is effectively isolated, making the dishwasher quieter during operation and reducing the impact of operating noise on the user. The sound insulation plate is connected to the flow guide and / or the hinge seat, realizing the integrated design of the sound insulation plate, the flow guide, and / or the hinge seat, which facilitates modular assembly, improves production assembly efficiency, and has a compact overall structure and small space volume.

The wind wheel assembly comprises a wind wheel body and a wind guide structure, a wind guide channel is formed in the wind guide structure, at least part of the wind wheel body is arranged in the wind guide channel, the wind guide channel is provided with a first wind guide section, the inner wall of the first wind guide section is arranged in an arc shape, and the inner wall of the first wind guide section is provided with a second wind guide section. The first air guide section is arranged in a concave mode back to the rotating center shaft of the wind wheel body, and the inner diameter of the first air guide section is set to be gradually increased in the air outlet direction of the air guide structure. According to the technical scheme, the wind guide structure of the wind wheel assembly is improved, the acting force of blade tip vortexes on the inner wall of the wind guide structure is reduced, and noise generated when the wind wheel assembly rotates is reduced.

The invention discloses an annular scanning type laser mosquito killing device. The device comprises a laser emitting mechanism, an annular reflecting surface, a light guide part and a photoelectric sensor which are sequentially arranged along a light path; the laser emitting mechanism is arranged in the annular reflecting surface, and the laser emitting mechanism is used for annularly emitting laser beams to the annular reflecting surface; the annular reflecting surface is used for reflecting the laser beam to the light guide piece; the light guide part is used for transmitting the laser beam to the photoelectric sensor from the annular reflecting surface; the photoelectric sensor is used for detecting light rays emitted from the light guide part, and the photoelectric sensor is electrically connected to the laser emitting mechanism. According to the circumferential scanning type laser mosquito killing device, the scanning face is formed through laser circumferential scanning, mosquitoes are detected and killed at the same time, simple and efficient mosquito killing is achieved, and the device is simple in structure, compact in size, low in manufacturing cost and capable of effectively overcoming the defects in the prior art.

The invention relates to a pseudo-random high-frequency quarter sinusoidal signal injection method and system for permanent magnet synchronous motor sensorless control, and belongs to the technical field of motor control. The method aims at solving the problems that noise is remarkable, torque ripple is aggravated and rotor position estimation precision is limited due to signal injection during zero-low-speed operation of a traditional high-frequency injection method. According to the technical scheme, the method comprises the following steps: constructing a pseudo-random high-frequency windowing quarter sine injection signal to suppress noise and torque ripple; high-frequency response current containing rotor position information is obtained through Clark transformation and Park transformation; designing a layered second-order generalized integrator band-pass filtering method to accurately extract position signals; and a cosine delay elimination normalization demodulation method is provided to eliminate the influence of the delay effect. According to the invention, synchronous improvement of noise suppression, torque ripple attenuation and rotor position estimation precision is realized, and the system stability and reliability are significantly enhanced.

The utility model discloses a sliding plate support base wheel set which comprises a base and a support, the base and the support are respectively provided with a containing cavity, a spring is arranged between the containing cavity of the base and the containing cavity of the support, a taper groove A assembled with the spring is formed in the containing cavity of the base, a taper groove B assembled with the spring is formed in the containing cavity of the support, and a taper tangent plane A is arranged at the end, making contact with the taper groove A, of the spring. The end, making contact with the taper groove B, of the spring is provided with a taper tangent plane B. The spring is tightly assembled in the taper groove A of the base through the taper tangent plane A. The spring is tightly assembled in the taper groove B of the support through the taper tangent plane B. Through the design, the spring is tightly connected with the base and the support, when the spring is used for a long time, the taper grooves of the support and the base become wider under friction and extrusion of the spring, connection between the spring and the taper grooves is more compact under the axial pressure of the spring, the action is more accurate in the using process, operation is quiet, and the service life of the spring is prolonged. The sliding plate support base wheel set is particularly suitable for sliding plates, land impact plates, sliding plate frames and other related products.

The invention discloses an active supercharging device for an automobile braking system, and relates to the technical field of supercharging devices, the active supercharging device comprises a cavity, a partition plate is arranged in the cavity, an air inlet pipe is arranged on the cavity in a communicating mode, an air outlet pipe is arranged on one side of the cavity in a communicating mode, and a rotating shaft is rotationally connected to the partition plate; a first turbine is fixedly connected to one end of the rotating shaft, a second turbine is fixedly connected to the other end of the rotating shaft, a noise reduction mechanism is arranged on the air outlet pipe, the noise reduction mechanism comprises an outer sheath, an inner sheath, a connecting plate, sound absorption cotton, a connecting bolt and a first spring, and the air outlet pipe is fixedly sleeved with the outer sheath. The air outlet pipe can be protected by arranging the outer sheath and the inner sheath, noise generated during air compression can be absorbed by arranging the first spring and the sound absorption cotton, so that the supercharger operates more quietly, and the sound absorption cotton is conveniently taken out for replacement by arranging the connecting bolt.

The application discloses a bit error rate test device, which comprises a first box and a second box which are stacked and used for placing a signal amplification device and a signal processing device; the first box and the second box are provided with opposite openings; a locking device comprises a first magnet and a second magnet, the first magnet is vertically arranged in the opening of the first box, and the second magnet is transversely arranged in the opening of the second box; the first magnet can move up and down under the action of the second magnet to realize locking and unlocking of the first box and the second box; the second magnet can switch the magnetic pole close to the first magnet through transverse movement. The first magnet is driven to move up and down in the vertical direction by using the principle that "like poles repel and opposite poles attract" to change the magnetic pole of the second magnet through transverse movement of the second magnet, so that locking or unlocking is completed.

The utility model provides negative pressure deodorization equipment which comprises a combined box body formed by splicing an electrical box, an air outlet box and a deodorization box, the electrical box and the air outlet box are arranged up and down, and the deodorization box and a combined body of the electrical box and the air outlet box are arranged side by side; a draught fan is arranged at the bottom of the interior of the deodorization box, an air outlet of the draught fan penetrates through a partition plate between the air outlet box and the deodorization box, a plurality of filter screens, a UV lamp tube and an ion deodorization tube are arranged in the deodorization box above the draught fan, an air inlet is formed in the top of the deodorization box, and an air outlet is formed in the bottom of the deodorization box. The air outlet box is provided with a shutter air outlet. According to the deodorization equipment disclosed by the utility model, air is fed by utilizing negative pressure formed by the fan, and after odor is filtered, disinfected and deodorized in the deodorization box, discharged air flows into the air outlet box provided with the blind window instead of being directly discharged out through an air outlet of the fan, so that discomfort caused by direct air discharge of the fan to passing people is avoided, and the operation is quieter.

The invention relates to the technical field of atomization equipment, and discloses an atomizer which comprises an outer shell and a compression pump arranged in the outer shell, a hanging support is arranged on the outer side of the compression pump, and the hanging support surrounds the bottom and the two sides of the opposite face of the compression pump; the two sides of the compression pump are connected with the two side walls of the hanging support in a hanging mode through flexible connecting pieces, and the bottom of the hanging support is connected with the bottom of the outer shell in an installing mode through a plurality of vibration reduction assemblies. The atomizing equipment has the effect of reducing noise generated in the working process of the atomizing equipment.

This application discloses a backup power supply metering device for 5G communication base stations, belonging to the field of power management technology for communication base stations. The backup power supply metering device for 5G communication base stations includes a housing, with communication equipment placed on the left side of the housing and a backup power supply fixedly connected to the bottom inner side of the housing. This application utilizes an adjustment plate and a rotation angle indicator. When the equipment is powered by backup power, a sudden increase in the backup power supply voltage can easily damage its lifespan. In this case, the backup power supply voltage value controls the motor to start. This, in conjunction with a rotating shaft, pulley one, belt, pulley two, transmission gear one, transmission gear two, and a lead screw, continuously changes the adjustment value within the DC-DC buck converter. This allows the DC-DC buck converter to adapt to different output voltage values ​​of the backup power supply in real time, ensuring that the output voltage value is always within a safe threshold, thereby protecting both the backup power supply and the communication equipment.

The invention relates to the field of oxygenation pump speed reducers, and discloses a novel oxygenation pump speed reducer device with a sealing structure, which comprises a gear ring flange plate, a sun gear and a mounting bracket, a first planet carrier is arranged at the bottom of the gear ring flange plate in a surrounding manner, and three planet gears are arranged at the bottom of the first planet carrier; a gear ring is arranged at the bottom of the outer side of the gear ring flange plate, an inward-extending lubricating oil rod is arranged at the top of the gear ring in a penetrating mode, a sun gear is arranged on the inner sides of the three planetary gears, and a second planetary carrier is arranged at the bottom of the sun gear. According to the speed reducer device, precise lubrication of moving parts such as gears and bearings in the gear ring is achieved, lubricating oil can be evenly distributed on all the moving parts through the through holes and the oil outlet holes formed at equal intervals, friction and abrasion are effectively reduced, the operation efficiency of the speed reducer device is improved, and the service life of the speed reducer device is prolonged. According to the precise lubricating system of the device, the operation efficiency and stability of equipment are greatly improved.

The utility model provides a panel assembly integrating a glass direction switch box and an inner handle. The panel assembly comprises a decorative plate, a decorative plate decorative strip, a handle, a handle panel, a rotating shaft, a torsion spring, a buffer cushion and the glass direction switch box. The decorative plate is provided with a first installation hole, and the decorative plate decorative strip penetrates through the first installation hole to be fixedly connected with an installation structure on the decorative plate in a clamped mode. The handle is provided with a second mounting hole, and the decorative plate penetrates through the second mounting hole to be connected with a first hook structure arranged in the handle in a clamped mode. The handle is provided with symmetrical third mounting holes, the handle panel is provided with corresponding fourth mounting holes, and the rotating shaft sequentially penetrates through the fourth mounting holes, the torsion springs and the third mounting holes to enable the handle to be connected to the handle panel in a pivoted mode. The problem of abnormal sound caused by reset collision is effectively solved, the quality feeling of the whole automobile is improved, the number of independent parts is reduced, the utilization of the internal space of the automobile door is optimized, and the assembling procedure is greatly simplified through the connecting modes of clamping, hooking and the like.

This utility model discloses a bass bearing with noise reduction function, including a hollow corrugated shell, an outer ring fixedly installed inside the hollow corrugated shell, and an inner ring rotatably installed inside the outer ring. Both ends of the inner ring surface are fixed with cages, and several equally spaced balls are embedded inside the cages, contacting the inner wall surface of the outer ring. A rubber bushing is fixed to the inner wall of the inner ring, and a fan-shaped protrusion is integrally formed on the outer wall of the rubber bushing. The end of the fan-shaped protrusion extends outward and penetrates to the outside of the inner ring. This utility model, through the interlocking structure of the inner ring, rubber bushing, fan-shaped protrusion, and cage, allows the inner ring to roll and rub against the outer ring via the cage and balls. During this rolling friction, the rubber bushing in the inner ring continuously contacts the double-wing elastic oil overflow structure via the fan-shaped protrusion, causing grease from the polyurethane foam block to overflow.

The invention discloses chain direct-drive type vertical circulation mechanical parking equipment, and relates to the technical field of parking equipment, the chain direct-drive type vertical circulation mechanical parking equipment comprises a frame, a circulation chain, a tray, at least one primary unit and a plurality of secondary units, and the tray is connected to the circulation chain; the primary unit is fixedly arranged on the frame; the secondary units are fixedly arranged on the circulating chain and are distributed along the extending direction of the circulating chain; a gap is formed between the primary unit and the secondary unit, when the primary unit is powered on, electromagnetic induction is generated between the primary unit and the secondary unit, the secondary unit is driven to drive the circulating chain to operate, and the parking equipment is simple in transmission chain, low in failure rate, high in efficiency, low in operation noise and compact in structure.

This utility model relates to the field of chemical reactor technology, and particularly to a chemical reactor with vibration damping and noise reduction functions. It includes a fixed ring, with three support rods fixedly connected to the outer surface of the fixed ring. Each of the three support rods has a vibration damping and noise reduction structure fixedly connected to its lower end. A chemical reactor body is fixedly sleeved inside the fixed ring. A first mounting plate and a second mounting plate are fixedly connected to the outer surface of the chemical reactor body, with the first mounting plate located below the second mounting plate. A control mechanism is fixedly mounted on the upper end of the first mounting plate. This utility model's chemical reactor with vibration damping and noise reduction functions, through the synergistic action of dampers and springs, significantly reduces the vibration intensity transmitted to the fixed block, reduces the propagation of vibration to the ground and the vibration amplitude of the chemical reactor body, effectively suppresses noise generated by vibration, ensures continuous operation of the chemical reactor body in a quiet and stable state, extends the service life of the equipment, and improves the production environment.

The utility model discloses an intelligent large barrier gate which comprises a door row assembly, a driving mechanism case used for containing a driving mechanism and a balance mechanism case used for containing a balance mechanism, the driving mechanism and the balance mechanism are connected with the door row assembly through a main shaft, and the door row assembly is driven by the driving mechanism to vertically rotate through the main shaft. The balance mechanism is characterized in that the balance mechanism comprises a spring assembly, a transmission chain and a chain hanging arm, the chain hanging arm is connected with the main shaft, and a plurality of idler wheels are arranged on the transmission chain and connected with the chain hanging arm in a rolling mode. The device is good in stability, quiet in operation and low in cost.

The invention discloses a diaphragm pump, and belongs to liquid conveying equipment. The liquid conveying device is characterized in that the pulsation of liquid is extremely small during conveying, the liquid can be conveyed extremely stably, and vibration and noise are also greatly improved. The multi-cavity diaphragm and multi-roller pressure plate assembly comprises a multi-cavity diaphragm and a multi-roller pressure plate which are combined, so that liquid can be sucked and discharged for multiple times in a rotation period. In the process, the rising edge and the falling edge appear for multiple times and are mutually supplemented, eliminated and counteracted, so that the pulsation is extremely small and even cannot be measured, and the liquid can be stably output. An eccentric wheel structure is omitted, noise is hardly generated, operation is stable, and mute work can be achieved.

The utility model relates to a compact projection type LED car light, including base one, still including setting on the upper end of base one half -reflector cover, and half -reflector cover is composed of multiple continuous free surface, and the upper end surface of base one is provided with the locating groove, and the inside of locating groove is provided with the locating seat, and the upper end of locating seat is installed with LED light source, and the left end of base one is provided with mobile assembly, and mobile assembly is installed with the light shield on, and mobile assembly is used for moving to the light shield, and it realizes light regulation, and the half -reflector cover of multiple continuous free surface composition, the novel mobile assembly utilizes the magnetic force to realize the non -contact drive, and there is no mechanical friction, and the service life is long, and there is no noise in operation, and the response speed is fast, and the magnet layout of magnetic pole opposition is adopted to form controllable magnetic field, and the control precision is promoted, and the reset spring is combined with PWM signal regulation, ensures that the light shield moves steadily accurately, realizes stable and reliable accurate intelligent dimming.

The invention discloses a laser depilation control and depilation instrument supporting sliding type continuous treatment, and relates to the field of beauty instruments. The method comprises the steps that in the process of moving a treatment head, skin images are collected in real time to obtain continuous image frames, and the linear acceleration and the angular velocity of the treatment head are collected; performing hair follicle target recognition on the image frame, extracting the position of a hair follicle, generating a data packet containing a timestamp and a target coordinate, and inserting the data packet into a task queue according to the timestamp; according to the linear acceleration and the angular velocity, the instantaneous velocity and the motion direction vector of the treatment head relative to the skin are obtained; and sequentially reading the data packets from the task queue, extracting target point coordinates from the data packets to perform laser irradiation, and performing fine adjustment compensation on the laser irradiation position according to the instantaneous speed and the motion direction vector. A sliding continuous treatment scheme is provided, and efficient, comfortable and quiet hair removal experience is achieved.

This utility model relates to the field of energy storage cabinet heat dissipation technology, and more particularly to an energy storage cabinet heat dissipation system, comprising: a cabinet body, with a battery chamber and a liquid cooling chamber inside; the battery chamber is equipped with a temperature sensor and a first liquid cooling plate; the liquid cooling chamber is equipped with a liquid cooling unit; the liquid cooling unit includes an inlet pipe, both the temperature sensor and the inlet pipe are connected to a circulating pump, the circulating pump is connected to a radiator through a first regulating valve, the circulating pump is connected to a heat exchanger through a second regulating valve, the radiator is connected to a cooler and a heat exchanger respectively, the cooler is connected to a cooling fan, the heat exchanger is connected to a heater and a gas-liquid separator respectively, the heater is connected to the first liquid cooling plate through an outlet pipe, and both the cooler and the gas-liquid separator are connected to an air compressor. This utility model's energy storage cabinet heat dissipation system can more quickly and effectively remove heat from the energy storage battery, ensuring that the battery can operate at a suitable temperature, improving battery performance and lifespan.

The invention discloses an annular sliding plate synchronous driving control system and method, and belongs to the technical field of whole vehicle manufacturing, the system comprises a PLC, a field sensor and a frequency converter, the field sensor comprises a plurality of encoders and is used for measuring the speed of a gear motor of a driving part, the sliding plate speed of a process section and the sliding plate speed of a chasing section; the measured speed data is transmitted to the PLC; and the PLC sends a control instruction to the frequency converter based on data transmitted by the field sensor so as to control a gear motor of the driving part to carry out coordination control according to dynamic given parameters. Synchronous driving of the sliding plates is achieved, the phenomena of clearance and over-extrusion of the sliding plates are avoided, the problem that parameters of driving points are unreasonably set is solved, energy consumption is reduced, and abrasion is reduced.

The utility model provides a fan cover of quick assembly and disassembly relates to fan technical field, include: fan machine head, the fan machine head front is equipped with fixed net cover, the fixed net cover front is equipped with installation net cover, the fixed net cover inner peripheral surface is equipped with four place adjustment subassembly, through the rectangular socket of elastic buckle and connecting sleeve frame is connected, by spacing insertion rod and support plate intercoordination, and utilize the elastic action of compression spring, can make installation net cover and fixed net cover quick stable connection, whole assembly process does not need to use tool and screw connection fixed, facilitates daily cleaning, season storage, quick dismounting and reinstallation can reduce user's operation time, let the process of maintaining fan be easier, solved when carrying out daily cleaning, season storage to fan, fan cover dismounting process is troublesome and laboursaving, and the maintenance difficulty is bigger, and the fixed screw of fan cover can be loose, leads to the front and back guard cover vibration to produce bigger noise, influences user experience problem.

The utility model relates to the technical field of battery processing equipment, and discloses a power supply assembly, a power supply device and charging and discharging equipment, the power supply assembly comprises a power supply module and a liquid cooling assembly, the power supply module comprises a circuit board and a component arranged on the circuit board, the liquid cooling assembly comprises a shell part, the shell part is provided with an accommodating cavity, and the accommodating cavity is provided with an opening. The shell part is provided with a containing cavity, the containing cavity is used for introducing and discharging cooling liquid, the shell part is connected to the circuit board, part of the surface of the shell part is sunken towards the interior of the containing cavity to form an avoiding groove, and the avoiding groove is arranged corresponding to the component to avoid the component. According to the power supply assembly, the power supply device and the charging and discharging equipment, heat dissipation is carried out in a liquid cooling mode, the heat conductivity coefficient of liquid is high, the heat conduction speed is high, the heat dissipation efficiency of the power supply assembly is high, and the situation that the power supply assembly cannot operate normally or even is damaged due to the high temperature can be avoided.

According to the ash conveying equipment, a pulling rope is used for pulling an ash scraping trolley to move back and forth in a reciprocating mode to scrape ash, compared with embedded scraper conveying equipment which scrapes ash through one-way rotation of a scraper chain, the structure is simpler, the chain breaking problem is avoided, the requirement for installation precision is reduced, and even if the installation precision is low, the ash conveying equipment can be used for conveying ash. And the serious vibration problem cannot be caused. And moreover, the ash scraping trolley is in rolling friction with the bottom plate of the machine shell when moving, so that the problems of serious abrasion, high operation energy consumption, large noise, obvious vibration and the like caused by sliding friction are avoided. Therefore, the service life is longer, the operation energy consumption is lower, the operation is quieter, and the operation safety is higher.

The learning lamp comprises a base, a control circuit board, a lamp body, a barrel, an atomization device and a fan, a containing cavity is formed in the base, an air inlet communicated with the containing cavity is formed in the base, the control circuit board is arranged in the containing cavity, the control circuit board is provided with a first heat conduction part, the lamp body is arranged on the base and electrically connected with the control circuit board, and the barrel is arranged on the base and electrically connected with the atomization device. A fluid channel is formed in the barrel, a plurality of air outlet holes communicated with the fluid channel are formed in the side wall of the barrel, the atomization device is arranged on the base and comprises a liquid storage cavity, the liquid storage cavity is provided with an output port, the output port is communicated with the fluid channel and located between the air inlet and the air outlet holes, and the first heat conduction part can heat liquid in the liquid storage cavity. The mosquito repellent liquid can be added into the liquid storage cavity, when the lamp body is used, heat emitted by the control circuit board is transferred to the liquid in the liquid storage cavity through the first heat conduction part, the mosquito repellent liquid can be heated and atomized, the heat can be fully utilized for atomization work, and therefore use power consumption is reduced.

The present invention discloses a synchronous drive control system and method for an annular slide, belonging to the technical field of vehicle manufacturing. The system includes a PLC, a field sensor and a frequency converter. The field sensor includes a plurality of encoders for measuring the speed of the reduction motor of the driving part, the speed of the process section slide and the speed of the catching-up section slide, and transmitting the measured speed data to the PLC; the PLC sends a control instruction to the frequency converter based on the data transmitted by the field sensor to control the reduction motor of the driving part to coordinate control according to the dynamic given parameters. The present invention realizes the synchronous drive of the slide, avoids the gap and over-extrusion of the slide, solves the problem of unreasonable setting of the driving point parameters, reduces energy consumption, and reduces wear.

The invention belongs to the technical field of transmission devices, and particularly relates to an aluminum alloy gearbox structure for high-speed rails.The aluminum alloy gearbox structure comprises a gearbox, hydraulic devices are fixedly connected to the front side and the rear side of the outer surface of the gearbox, the gearbox comprises a heat dissipation box shell, and a brake device is arranged on the left side of the inner wall of the heat dissipation box shell; a sealing cover is fixedly connected to the top of the inner wall of the heat dissipation box shell, a main rotating gear is arranged on the left side of the inner wall of the heat dissipation box shell, and a first driven gear is arranged on the upper portion of the inner wall of the heat dissipation box shell. When the device is used, if internal gears need to be lubricated, only the hollow threaded sleeve needs to be controlled to rotate clockwise, then the oil conveying pipe in the heat dissipation box shell can automatically oil and lubricate the three internal gears, and the operation can also be carried out in the working process of the gearbox; and the gear can be lubricated without opening the gear box, so that the operation is simple and convenient.

The invention discloses low-profile high-precision flexible cable winding and unwinding equipment, and belongs to the field of mooring unmanned aerial vehicles. The equipment comprises a shell, and a cable storage mechanism, a cable arrangement mechanism and a main control unit which are mounted in the shell. A main motor of the cable storage mechanism is used for driving a cable storage cylinder to rotate, a first synchronous belt assembly is used for transmitting rotation of the main motor to the cable storage cylinder, and the cable storage cylinder is used for winding a stored cable. A cable arranging motor of the cable arranging mechanism is used for driving a lead screw of a lead screw sliding rail mechanism to rotate, the lead screw sliding rail mechanism is used for driving a guide wheel assembly to move in the axial direction of the lead screw, the guide wheel assembly is used for guiding a cable in the cable winding and unwinding process, and a second synchronous belt assembly is used for transmitting rotation of the cable arranging motor to the lead screw. The main control unit is electrically connected with the main motor and the winding displacement motor and controls operation of the whole equipment. The device is suitable for cables with different outer diameters, meets the requirement for high-speed cable winding and unwinding, has the function of monitoring all states, and is stable in work and high in reliability.