93 results about "Low transmission" patented technology

A side throwing type fertilizer distributor belongs to the technical field of fertilizer distributors and comprises a vehicle body, a throwing assembly, wheels, an upper spiral shaft, a lower spiral shaft, a rear flange, a swing frame, a gate, a connecting rod, a push-pull plate, an oil cylinder, a material throwing wheel, a lower large chain wheel, a lower small chain wheel, a driving wheel, an input shaft, an upper chain wheel, an upper large transmission wheel, an upper small transmission wheel, a lower large transmission wheel, a lower small transmission wheel, an upper transmission shaft and a lower transmission shaft. The wheels are connected to the swing frame, the swing frame is hinged to the lower end of the vehicle body, the gate is arranged in the rail groove, the connecting rod is hinged to the gate and the push-and-pull plate, the push-and-pull plate is hinged to the vehicle body, the oil cylinder is hinged to the push-and-pull plate and the vehicle body, the scattering assembly is arranged at the discharging port, and the upper spiral shaft and the lower spiral shaft are connected into the vehicle body through a bearing and a rear flange. The input shaft is arranged on the front lower portion of a transmission box of the vehicle body, and all rotating components are in transmission in the transmission box through chain wheels and chains. The vehicle body is good in sealing performance and high in transmission efficiency, and fertilizer can be thrown to the side of the vehicle body.

This utility model relates to the field of rotary joints, specifically to a rotary joint that can be used as a drive end. It includes a rotating central shaft, comprising an upper transmission part and a lower transmission part connected to a rotating mechanism. The rotating central shaft also includes an inlet and an outlet that are interconnected. A bearing is also included. A housing includes a mounting groove for mounting the rotating central shaft and a feed pipe for supplying material to the inlet, allowing the material to be discharged from the outlet. A connecting flange is located at the end of the lower transmission part away from the upper transmission part, and the connecting flange is adapted to connect to a stirring mechanism. The rotating central shaft passes through the housing. The side of the rotating central shaft is rotatably connected to the housing via the bearing. This utility model provides a rotary joint that can be used as a drive end, combining the rotary joint and the drive part of the stirring mechanism into one, reducing device costs. Because the rotary joint rotates while simultaneously conveying material, it improves the thoroughness of material mixing after stirring.

The invention relates to the technical field of aero-engine starter systems, and discloses an axial displacement control type overrun clutch which comprises a clutch body, a damper and an output shaft, the clutch body comprises a deep groove ball bearing, an input shaft, a diaphragm spring set, a spline shaft, a fixing pin, a conversion lining, a ball bearing, a driving gear, a lock washer and a locking nut; the damper comprises a retainer, a damping block and a spring, the output shaft is supported on the starter shell through a deep groove ball bearing, the input end of the output shaft is provided with end teeth, and when the driving gear stretches out and is meshed with the end teeth, the transmission function is achieved. The output end of the output shaft is of an internal spline structure and serves as a torque output connector. By means of the torque-displacement conversion characteristic of the left-hand thread pair, accurate meshing and physical isolation disengaging of the input shaft and the output shaft are achieved. A three-stage transmission control structure is adopted and comprises a torque-displacement conversion module, a damping control module and a spiral meshing module, and the technical defects that a traditional inclined strut type clutch is polluted in lubricating oil, low in torque transmission efficiency and the like are overcome.

This invention provides a driving device for a centrally located switchgear valve baffle, comprising an actuating mechanism, an active mechanism, a transmission mechanism, and a guiding mechanism. The actuating mechanism is located on the lower front side of the switchgear truck for the operator to apply force to drive the switchgear truck into the trolley compartment. The active mechanism is located on the left and right rear sides of the switchgear truck for applying force to the transmission mechanism during the movement of the switchgear truck into the trolley compartment. The transmission mechanism includes an upper transmission mechanism and a lower transmission mechanism located on the left and right side plates of the trolley compartment. The upper and lower transmission mechanisms are adapted to drive the upper and lower valve baffles respectively to open under the force applied by the active mechanism, thereby exposing the high-voltage stationary contacts. The guiding mechanism is located on the rear side plate of the trolley compartment for vertically guiding the movement of the upper and lower valve baffles. This application features a clever and simple structural design that can simultaneously drive both sides of the valve baffle, making the opening and closing action of the valve baffle more flexible, stable, and reliable, effectively avoiding valve baffle jamming.

The utility model discloses an electric push rod up-down concentric structure, which comprises a motor, a transmission structure and a telescopic structure, the motor, the transmission structure and the telescopic structure are sequentially connected, the transmission structure comprises a transmission assembly and a transmission shell, the transmission shell wraps the outer side of the transmission assembly, the transmission shell comprises a transmission lower shell and a transmission upper shell, and the transmission lower shell is connected with the telescopic structure. A positioning column is arranged at the top of the transmission lower shell, a positioning hole corresponding to the positioning column is formed in the transmission upper shell, a wire baffle is arranged in the transmission lower shell, and the wire baffle surrounds the peripheral side and the bottom side of the transmission assembly. The electric wire is prevented from being wound into the transmission assembly, grease is not prone to losing, the waterproof groove is formed in the connecting position of the upper transmission shell and the lower transmission shell, the waterproof effect of the outer transmission shell is enhanced, the lower transmission shell and the upper transmission shell are connected through the positioning columns and the positioning holes, and the concentricity of the bearing can be guaranteed.

The invention relates to the technical field of geotechnical engineering equipment, in particular to a drilling, punching and expanding hydraulic drilling rig which comprises a driving rod, one end of the driving rod is fixedly connected with an end, the end, away from the end, of the driving rod is communicated with a connecting pipe, a second gear is fixedly connected to the output end of a first motor, and a second gear is fixedly connected to the output end of a second motor. A drill bit is fixedly connected to the bottom of the end, and an expansion plate is arranged above the drill bit. The side plates on the two sides are fixed, the angle is adjusted through a hydraulic rod, a drill bit is made to conduct punching smoothly, meanwhile, reaming operation is conducted through an expansion plate, reaming operation is conducted while punching is conducted at different angles, meanwhile, a sliding column moves downwards, and an L-shaped rod is locked through a buckle column, a lower transmission column and a transverse rod so that the stability of the expansion plate can be guaranteed; the situation that vibration is generated in the drilling process, so that the expansion plate is uneven in drilling, and pipeline burying is caused to cause pipeline damage is avoided.

The application is suitable for the technical field of gear design, and particularly relates to a low-resistance gear based on the principle of bionics and a gear face design method thereof. The low-resistance gear based on the principle of bionics comprises a gear face, and the gear face is provided with streamlined grooves simulating the groove texture on the surface of shark skin for reducing the resistance during friction. The method comprises the following steps: determining the contour correlation data between a plurality of gear face feature points corresponding to a plurality of to-be-formed gear faces according to the obtained basic parameters and bionic prototype data; determining gear face bionic restriction data according to the contour correlation data between the plurality of gear face feature points and bionic low-resistance design data; and adjusting the contour parameters according to the gear face bionic restriction data corresponding to the plurality of gear face feature points to obtain processed gear face data. The application can solve the problem that the gear face of the designed gear has large sliding friction during meshing, thereby leading to low transmission efficiency.

The application discloses a magnetic gear motor system for a deep-sea robot and a use method thereof, and belongs to the technical field of robots. The transmission mechanism comprises two sets of power assemblies, a magnetic gear transmission assembly and a speed reducer assembly which are symmetrically arranged, wherein the magnetic gear transmission assembly adopts a radial arrangement of a magnetic adjusting ring output scheme, and the air gap between an outer rotor and a shell is eliminated to reduce the machining difficulty. By switching the assembly to drive the motors of the two sets of subsystems and synchronously moving the inner rotors in the reverse direction, non-contact gear shifting of high / low transmission ratio is realized, and mechanical wear is avoided. An independent oil path system prevents the metal chips of the speed reducer from polluting the magnetic gear oil path. By controlling the differential speed or reverse rotation of the two motors, differential speed operation of the output end is realized to reduce the turning radius or make a U-turn in place, and a mechanical differential is omitted. The application has high torque output, non-wear gear shifting and high reliability, and is suitable for deep-sea heavy-load operation.

The present application belongs to the technical field of carton sealing equipment, and particularly relates to an energy-saving high-speed carton sealing equipment and a control method, comprising a transmission assembly and a glue sealing assembly. The transmission assembly is used for transmitting the carton that has been boxed to the center of the glue sealing station. The glue sealing assembly is used for performing linear glue sealing on the top of the glue sealing station during the high-speed movement of the carton. The third roller uniformly arranged on the first pressing plate where the two transmission belts in the transmission assembly are located can effectively reduce the movement resistance of the transmission belt. Meanwhile, the structure of the automatic supply of lubricating grease between the third roller and the corresponding third roller shaft for automatic compensation of lubrication can effectively reduce the rotation resistance of the third roller, thereby improving the movement friction resistance of the transmission belt and reducing the energy consumption of the movement of the transmission belt.

The invention provides a semi-closed compressor based on a built-in motor, and aims to solve the problems of low transmission efficiency, easy leakage and high cost of an open compressor in the prior art. The compression module comprises a base flange, a motor cavity shell, a compression module cavity and an internal motor assembly. According to the invention, the motor is internally arranged to realize full sealing, so that a dynamic shaft seal which is easy to leak is eliminated fundamentally, absolute sealing of hazardous gas is achieved, and the safety is higher; the motor rotor and the compressor spindle are integrated in a direct-drive mode, transmission parts such as couplers are omitted, and the transmission efficiency is improved; a dual cooling scheme of medium internal circulation cooling and stator independent cooling is adopted; a medium flows through the interior of the motor along a preset path, so that heat is effectively taken away; the independent stator cooler strengthens heat dissipation, and solves the problem of motor cooling when the air quantity is insufficient; the compressor integrated structure is high in air inlet temperature adaptability and can still stably operate even under the high-temperature working condition of 100 DEG C or above, and the application scene is greatly widened.

The utility model discloses a hoisting winch, which relates to the technical field of hoisting devices and comprises a gear box body, one end of the gear box body is provided with an anchor point fixing end, and one side wall of the gear box body is fixedly connected with a transmission reel support. According to the utility model, the multi-gear input connection port is arranged and is connected with the drill bit of the electric drill, so that various lifting application scenes can be realized; in addition, when a first gear is connected, driving force of a drill bit of the electric drill is output through the center input gear assembly and drives the first transmission winding wheel and the second transmission winding wheel to rotate synchronously in the same direction, the rope wound on the first transmission winding wheel and the second transmission winding wheel can move synchronously, and a heavy object is hung at one end of the rope and lifted. The rope is wound on the upper transmission winding wheel and the lower transmission winding wheel, so that the friction force is larger, the hoisting is more stable, a heavy object cannot slip easily when being hoisted, the equipment safety is improved, and meanwhile, the hoisting load capacity is also improved; and sliding release can be achieved by reducing the number of turns of the rope wound on the transmission winding wheel, and control is accurate.

The invention provides a BCM analog quantity testing device for controlling an automobile electric appliance, and relates to the technical field of BCM analog quantity testing, the BCM analog quantity testing device comprises a support frame, the top of the support frame is provided with a transmission protection plate; movable plates are slidably mounted on the outer sides of the two guide sliding rods. An upper transmission wheel and a lower transmission wheel are installed in the movable frame, a servo motor is installed on the outer side of the movable frame, and the output end of the servo motor is connected with the upper transmission wheel. The lower transmission wheel is meshed with the side face of the upper transmission wheel, and the lower transmission wheel is meshed with the side face of the rotating gear after moving downwards. The servo motor drives the upper transmission wheel to mesh to drive the lower transmission wheel and then drives the rotating gear to rotate to realize the movement of the adjusting push rod, so that the connection stability of a single test plug and the upper joint of the BCM test module is improved, the test efficiency and accuracy are improved, and the problem of poor connection caused by looseness of individual pins in a multi-channel test interface is solved.

The invention relates to the technical field of planetary speed reducers, in particular to a planetary speed reducer capable of circularly reducing resistance. Comprising a shell, one side of the shell is provided with an input shaft, the side, away from the input shaft, of the shell is rotationally connected with an output shaft, the output shaft is fixedly connected with a planet carrier located in the shell, the planet carrier is rotationally connected with planet wheels distributed at equal intervals in the circumferential direction, and the input shaft is fixedly connected with a sun wheel meshed with the planet wheels distributed at equal intervals in the circumferential direction; an inner gear ring meshed with the planet gears distributed at equal intervals in the circumferential direction is rotationally connected into the shell. According to the planetary reducer, under the condition of large load, firstly, the input shaft and the output shaft are in the low transmission ratio condition, so that the torque of the output shaft is increased, the extrusion force between the planet gear and the sun gear and between the planet gear and the inner gear ring is reduced, abrasion between gears is reduced, in the process, abrasion resistance between the gears is continuously reduced, and the service life of the gears is prolonged. And multiple times of circular treatment are conducted, and the gear is protected.

The utility model discloses a crushing device for PVC (polyvinyl chloride) additive production, which comprises a crushing subassembly and a grinding subassembly which are arranged up and down, the crushing subassembly comprises two upper extrusion rollers arranged on the upper side in a crushing subassembly shell and two lower extrusion rollers arranged on the lower side in the crushing subassembly shell; the outer ends of the upper extrusion roller rotating shafts are provided with upper transmission gears respectively, the two upper transmission gears are in meshing transmission, the outer ends of the lower extrusion roller rotating shafts are provided with lower transmission gears respectively, the two lower transmission gears are in meshing transmission, and a driving gear is arranged between the upper transmission gear on the right side and the lower transmission gear on the right side. The upper side of the driving gear is in meshing transmission with the upper transmission gear, and the lower side of the driving gear is in meshing transmission with the lower transmission gear. Power is provided through gear transmission, so that the transmission efficiency is high, and the crushing effect is good; the grinding machine can be suitable for raw materials with different particle sizes, and the particle sizes of the ground raw materials are smaller.

The utility model provides a bearing box assembly, and belongs to the technical field of bearings. The problems that an existing bearing box is inconvenient to assemble and high in replacement cost are solved. The bearing box assembly comprises a box body with a transmission cavity, the box body is located in the transmission cavity and provided with an output assembly connected with the transmission cavity and used for bidirectional output, the output assembly is composed of a lower transmission unit and an upper transmission unit connected with the lower transmission unit in a meshed mode, and the two ends of the lower transmission unit and the two ends of the upper transmission unit extend out of the box body. The utility model has the advantages that the replacement is convenient, and the replacement cost is reduced.

The utility model discloses a kind of waste material separation and collection devices of automobile parts mould, including support and the collection separation mechanism being installed above support, the collection separation mechanism includes collection component and separation component;The collection component includes chassis, spring, upper conveyor belt, side plate, driving stick, lower transmission belt, material receiving frame and lower discharge port, and the top of support is fixedly installed with chassis;By being provided with driving motor drive rear connection transmission wheel rotation, then transmission wheel is rotated by the transmission belt of outside another transmission wheel, since the transmission wheel of top and eccentric shaft are interconnected, so eccentric shaft is rotated by transmission wheel, eccentric shaft and the shaft of top frame connection and the shaft of transmission wheel connection different center, so eccentric shaft can drive top frame to be dithered in device inside with transmission wheel as center, to be able to drive the screen plate inside to be dithered and conveniently screen waste material, the device solves the problem of current automobile manufacturing.

The invention provides a horizontal electric power steering gear and a vehicle, and the horizontal electric power steering gear comprises a steering gear body assembly which comprises a first input shaft and a first output shaft; the power assisting assembly is connected with the steering gear body assembly, and a power output shaft of the power assisting assembly is connected with the first input shaft; the input shaft assembly is connected with the steering gear body assembly and comprises a second input shaft and a third input shaft, the first end of the second input shaft is used for being connected with a steering column, and the second end of the second input shaft is connected with the first end of the third input shaft through a first transmission assembly; the second end of the third input shaft is connected with the first input shaft, the second input shaft is perpendicular to the third input shaft, and the second input shaft is parallel to the first output shaft. The technical problems that in the prior art, a steering gear horizontal installation mode is high in cost and low in transmission efficiency are solved.

An engine torque smoothing control method, apparatus and device, and a readable storage medium. The method comprises: acquiring a gearbox gear of a vehicle; on the basis of the gearbox gear or a transmission ratio corresponding to the gearbox gear, determining a target torque change rate limit value of an engine; and on the basis of the target torque change rate limit value, performing engine torque smoothing. The engine torque smoothing can be executed in different gears by using different target torque change rate limit values, such that the engine torque smoothing can be executed in a gear with a relatively high transmission ratio by using a relatively small target torque change rate limit value, thereby avoiding the oscillation of a vehicle caused by an excessively large torque change rate at a transmission system; and the engine torque smoothing can be executed in a gear with a relatively low transmission ratio by using a relatively large target torque change rate limit value, such that the torque of an engine can be increased as quickly as possible while the vehicle can maintain smoothness, thereby ultimately effectively balancing the torque response capability of the vehicle and the smoothness of a torque increase process.

The application discloses a lower transmission type motor heat dissipation structure, which comprises a supporting base, a motor outer shell, a driving shaft, a lower heat dissipation mechanism and a transmission assembly. The heat dissipation structure located at the rear end of the motor outer shell is removed, and the heat dissipation structure and an airflow path are installed at the bottom of the motor outer shell, so that the rainwater above cannot enter the inside of the motor outer shell through the airflow path. The rotation of the lower air guide blade makes the airflow enter the air inlet pipe from the lower filter box, the airflow in the air inlet pipe is uniformly discharged from the annular air outlet disc, the inside of the motor outer shell is cooled, and finally the airflow is discharged from the bottom air outlet pipe, so that the complete airflow path design is realized.

The invention discloses a forklift electric steering axle and a power-off auxiliary steering mechanism thereof, and belongs to the technical field of electric steering axles. The device comprises an assembling plate, a transmission box is fixedly arranged on the assembling plate, an electric driving mechanism is fixedly arranged on the transmission box, the device further comprises a magnetic control box fixed to the top of the transmission box, a magnetic control clutch mechanism is arranged in the magnetic control box in a matched mode, an upper electromagnetic plate is arranged in the magnetic control box, and a lower electromagnetic plate is arranged in the magnetic control box. The upper electromagnetic plate regulates and controls the position of the magnetic control clutch mechanism through magnetic attraction. After power failure, the upper electromagnetic plate loses magnetic attraction force, and the magnetic block drives the transmission sleeve to move downwards under the action of gravity, so that the clutch wheel is aligned with the pneumatic transmission wheel. The pneumatic motor works, the pneumatic transmission wheel is driven to rotate through the transmission belt, power is transmitted to the positioning shaft through the clutch wheel, the lower transmission sleeve and other components, then the transmission frame and the rim supporting seat are driven to rotate, and the problem that in the prior art, the running direction of the forklift cannot be flexibly adjusted after power failure is solved.

The utility model relates to a kind of washing machine roller drive system, belong to industrial cleaning transmission technical field;Including: washing machine main body edge is equipped with motor, and is equipped with driving sprocket, driving sprocket is linked double sprocket by chain, and is installed on vertical roller drive one, vertical transmission support is rotatably installed with vertical roller drive one, vertical roller drive two and vertical roller drive three, vertical roller drive one is fixedly installed with transmission sprocket one, transmission sprocket one is linked transmission sprocket two by chain, transmission sprocket two and transmission sprocket three are all installed on vertical roller drive two, transmission sprocket three is linked transmission sprocket four by chain, transmission sprocket four is installed on vertical roller drive three;By using single motor drive, transmission is carried out with sprocket and gear, solve the phenomenon such as low transmission efficiency, complex structure, high maintenance cost, limited scrubbing coverage, unstable transmission, roller speed inconsistency and other phenomena, affect cleaning effect and equipment service life.

The invention relates to a hybrid power system and a vehicle, and belongs to the technical field of hybrid power systems. According to the scheme, on the basis that an engine and a motor are coupled through a planet row and output through a multi-gear transmission at the downstream, a gear shifting mechanism is additionally arranged at the input end of the planet row, the gear shifting mechanism can achieve transmission connection of the two input ends of the planet row, and the whole planet row rotates synchronously; the output end of the planet row is directly connected with the output shaft in cooperation with a downstream gear shifting mechanism, 1: 1 direct driving from the first input end to the output shaft is achieved, and a high-speed gear mode with high efficiency and low transmission loss is achieved; meanwhile, when one input end of the planet row is locked through the added gear shifting mechanism, the planet row outputs power input by the first input shaft at the other speed ratio, and when the planet row has two output speed ratios of 1: 1 direct output and non-1, the number of driving modes is doubled in cooperation with a plurality of gears in the downstream multi-gear transmission, and therefore the driving efficiency is improved. And more subdivided working conditions can be efficiently adapted.

The utility model provides an integral slant bed numerical control machine tool, and belongs to the technical field of numerical control machine tools. The problem that cooling liquid of an existing slant bed numerical control machine tool cannot be recycled is solved. The integrated slant bed numerical control machine tool comprises a machine tool base, the top of the machine tool base is connected with a machining part, the left side of the front side of the machining part is connected with a cooling liquid pipe, the front side of the top of the machine tool base is provided with a liquid drainage groove, the left side of the machine tool base is connected with a liquid storage box, and supporting springs are welded to the four corners of an inner cavity of the liquid storage box; a filter screen plate is fixedly connected to the top of the supporting spring, a striking rod is movably connected to the front side of an inner cavity of the liquid storage box, a servo motor is connected to the top of the rear side of the liquid storage box, an output shaft of the servo motor penetrates to the front side of the liquid storage box, a stirring rod is welded to the surface of the output shaft of the servo motor, and transmission wheels fixedly sleeve the output shaft of the servo motor and the front side of the striking rod; a transmission belt is sleeved between the upper transmission wheel and the lower transmission wheel, and the bottom of the liquid storage box communicates with an infusion pump. According to the utility model, the cooling liquid can be filtered and recycled.

The invention discloses a crankshaft driver which can effectively transmit external rotary motion. A main body comprises a main box body, a middle main box body, a left box body cover, a right box body cover, a crankshaft transmission set, an electric drive lubricating oil pump and a flywheel. The crankshaft transmission set is divided into a first-stage crankshaft transmission set and a second-stage crankshaft transmission set, and the first-stage crankshaft transmission set and the second-stage crankshaft transmission set are divided into an up-down transmission set and a left-right transmission set. The up-down transmission set and the left-right transmission set of the first-stage crankshaft transmission set share one power input crankshaft which is a public power input crankshaft. The up-down transmission set and the left-right transmission set of the second-stage crankshaft transmission set share one power output half gear which is a public power output half gear.

The present invention relates to a hybrid power system and a vehicle, belonging to the technical field of hybrid power systems. In such a solution, on the basis of coupling an engine and an electric motor by means of a planetary gear set and achieving output by means of a downstream multi-speed transmission, a gear shifting mechanism is added to an input end of the planetary gear set and can achieve transmission connection between two input ends of the planetary gear set, such that the entire planetary gear set rotates synchronously, and then in cooperation with a downstream gear shifting mechanism, an output end of the planetary gear set is directly connected to an output shaft, such that 1:1 direct driving from a first input end to the output shaft is achieved, and a high-speed gear mode with high efficiency and low transmission losses is achieved. Moreover, when the added gear shifting mechanism locks one input end of the planetary gear set, the planetary gear set outputs power input by a first input shaft at another speed ratio. When the planetary gear set provides both 1:1 direct output and non-1 output speed ratios, in cooperation with a plurality of gears of the downstream multi-speed transmission, the number of driving modes is doubled, and a broader range of specialized working conditions can be efficiently adapted.

The application discloses a direct-drive electric cylinder device of an oil pumping unit loaded with a permanent magnet servo and a high-speed silent ball screw, and belongs to the technical field of oil exploitation equipment. The device comprises a rack assembly, a permanent magnet servo direct-drive assembly, a high-speed silent ball screw transmission assembly, a telescopic push rod assembly, an intelligent control assembly and a protection assembly. The device discloses a direct-drive mode of a permanent magnet servo motor, cooperates with a high-speed silent ball screw with a pre-tightening gap elimination structure to realize power transmission, converts the rotary motion of the motor into the vertical reciprocating linear motion of the push rod, and completes the oil pumping operation. Meanwhile, the intelligent control assembly is used for collecting the working conditions of oil wells and the operation parameters of equipment in real time, and the self-adaptive algorithm is used to realize the accurate intelligent regulation and control of the stroke, the stroke frequency and the torque. The application solves the technical problems of low transmission efficiency, high energy consumption, large operation noise, poor regulation precision, high operation and maintenance cost and insufficient intelligence of the traditional oil pumping equipment, has the advantages of high efficiency, energy saving, silence, low vibration, precision control, reliable structure and wide adaptability, greatly improves the oil pumping efficiency of oil wells and the operation stability of equipment, effectively reduces the production and operation cost of oil fields, is suitable for fine oil pumping operation of various oil wells, especially low-yield and intermittent oil wells, and has a wide application prospect.

The present application relates to the technical field of trackless side sliding door, disclose a kind of trackless side sliding door and its reduction gearbox, including reduction gearbox shell and controller, reduction gearbox shell is sequentially installed with drive portion, lower transmission mechanism, brake, upper transmission mechanism from below to top, drive portion is driven connection lower transmission mechanism, lower transmission mechanism is connected with brake transmission, brake is connected with upper transmission mechanism transmission, upper transmission mechanism transmission connection has transmission upper cover, the upper end of transmission upper cover extends output transmission shaft upward, brake and drive portion are connected with controller communication respectively.The trackless side sliding door and its reduction gearbox of the present application can simultaneously realize manual side sliding door and electric side sliding door, and realize emergency stop in the state of electric side sliding door.

The utility model provides a kind of middle door circuit breaker emergency opening device, it is related to circuit breaker technical field, including: switch board, knob rotationally arranged in cabinet door, transmission lever and transmission assembly.The transmission assembly is linked by mounting seat, displacement rack, main drive gear, driven gear and segmented lifting arm, the rotary motion of knob is converted into the vertical lifting action of lifting arm, and drive switch blade switching rod triggers opening;The segmented lifting arm top end is provided with switch blade switching rod with silicon rubber elastic buffer sheet, and impact force is dispersed by arc recessed contact surface;Insulating isolation ring is additionally provided at knob connection, to ensure high-voltage operation safety.The utility model solves the problems of low transmission efficiency, large operating torque, easily damaged components by opening impact and insufficient insulation protection in high-voltage environment of traditional emergency opening device, realizes single-hand operation quick opening, and reduces mechanical wear and tear and risk of accidental touch.

The utility model provides a self-lubricating door plate turnover mechanism which comprises a door plate, one side of the door plate is fixedly connected with a hinge assembly, the upper portion of the hinge assembly is fixedly connected with a crown ratchet gear set, one end of the crown ratchet gear set is in transmission connection with an intermittent driving assembly, and the intermittent driving assembly comprises a first transmission plate, a second transmission plate, a first transmission gear and a second transmission gear. Upper driving columns are fixedly connected to the upper portions of the first transmission plate and the second transmission plate respectively, lower driving columns are fixedly connected to the lower portions of the first transmission plate and the second transmission plate respectively, and one end of the lower driving column on the lower side of the lower transmission plate is in transmission connection with the crown ratchet gear set. The oil injection assembly is driven to inject oil through the first transmission gear after the door plate rotates for multiple times, one-time oil injection lubrication operation can be conducted after the door is opened and closed for certain times, in this way, a large external oil can does not need to be connected for continuous oil supply, the occupied space of the device is reduced, and the device is suitable for small household doors and does not need to be frequently maintained.

The application discloses a double elevator anti-collision triggering device, and aims at solving the problem of lacking of simple structure and stable anti-collision mechanism in the prior art, and adopts the following technical scheme: an upper triggering swing rod and an upper lifting swing rod are arranged on an upper car, the upper triggering swing rod and the upper lifting swing rod rotate around respective rotation centers; the upper lifting swing rod is connected with the upper triggering swing rod through a transmission assembly; the upper lifting swing rod is connected with a safety clamp of the upper car through an upper transmission member; a lower lifting swing rod is arranged on a lower car, the lower lifting swing rod rotates around a rotation center thereof, and the lower lifting swing rod is connected with a safety clamp of the lower car through a lower transmission member; an upper triggering member for triggering the upper car to brake and a lower triggering member for triggering the lower car to brake are arranged.When the two cars are about to collide, the double elevator anti-collision triggering device can trigger the safety clamps of the two cars to brake in an emergency, so that the mutual collision of the cars is prevented.