20results about How to "High transmission reliability" patented technology

This utility model's electric mining truck gearbox features a three-speed design that allows selection of the most suitable gear based on different working conditions, optimizing power output to meet the power requirements of mining trucks, increasing the coverage of the motor's high-efficiency zone, improving the overall efficiency of the gearbox, and effectively reducing energy consumption. Based on the powerful performance provided by the multi-motor configuration, it enhances the flexibility and efficiency of the drive system. The front intermediate shaft assembly is coaxially connected to the output end of the power coupling assembly, and the rear intermediate shaft extends into the front intermediate shaft assembly and is coaxially aligned with the output end of the power coupling assembly, forming a compact parallel shaft structure. This fully utilizes the radial space of the gearbox and reduces its axial dimensions, thereby reducing the gearbox's volume and facilitating overall vehicle layout. Furthermore, the front and rear intermediate shaft assemblies share the radial and axial loads during transmission, reducing gear stress and improving the transmission stability and reliability under harsh working conditions, thus enhancing the gearbox's adaptability to various operating conditions.

The utility model provides a tractor electric drive power system, including motor module, input module, variable speed module that transmits connection in proper order, variable speed module includes intermediate shaft with input module through the clutch connection, the gear shift tooth cover of slidable assembly along the axle direction on intermediate shaft, rotatable assembly on intermediate shaft gear position drive gear set, gear position driven gear set and gear position drive gear set with gear position drive gear set mesh with output shaft, and the number of intermediate shaft is at least two, and the gear shift tooth cover is combined with gear position drive gear set and forms the connection of intermediate shaft and output shaft along the axial sliding, the utility model improves the high efficiency interval coverage rate of motor, reduces energy consumption, avoids the tooth shaft damage among variable speed module under the sudden situation such as motor out of control, improves transmission safety, and reliability, avoids the power interruption of gear shifting, and reduces the gear shifting impact, improves the scene adaptability of electric drive power system, reduces energy and hardware loss.

The utility model provides a kind of rhythmic vibration machine, it is related to fitness equipment technical field, including base, lower support, upper support and pedal, lower support is fixed with base, upper support is fixed with pedal, and lower support is equipped with rhythmic module, including drive motor, pivot and the cam connected with pivot by eccentric bearing, drive motor drives pivot by transmission mechanism, drives cam to make upper support rhythmic up and down;Meanwhile, vibration module is equipped on the side of upper support away from drive motor, for generating high-frequency vibration. By efficiently integrating rhythmic and vibration function in one, compact structure, and the stability of both simultaneous operation is improved by effectively avoiding motion interference with the layout of the two, so that users can simultaneously obtain the dual effect of full-body rhythmic exercise and local muscle deep relaxation.

The utility model discloses a modular hydraulically-driven strip tillage machine which comprises a machine frame connected with a tractor in a hanging mode and a plurality of tillage units arranged on the machine frame, and each tillage unit comprises an adjusting frame, a first hydraulic motor arranged on the adjusting frame and a rotary tillage knife roll directly driven by the first hydraulic motor. Each cultivation unit is in sliding connection with the rack through a sliding adjusting mechanism; the strip tilling machine is further provided with a hydraulic driving system, and the hydraulic driving system comprises a multi-way hydraulic valve set for supplying oil to all the first hydraulic motors and a row spacing adjusting oil cylinder for driving all the tilling units to synchronously move in the opposite direction or the reverse direction along the rack so as to adjust the row spacing. A first transverse rod and a second transverse rod are fixedly connected to the rack in a penetrating mode. The row spacing adjusting mechanism has the advantages of dynamic and accurate row spacing adjustment, reliable locking, simplified structure and efficient operation.

This invention relates to a grinding repair method for a central drive spline shaft, belonging to the field of repair technology. The invention proposes a grinding repair method for a central drive spline shaft. This method involves micro-grinding of the splines on a drive shaft with out-of-tolerance tooth direction but whose spline tooth thickness meets process requirements and has a significant remaining lifespan. This restores the technical condition of the spline teeth on the central drive spline shaft to its original process level, extends the lifespan guarantee capability of the drive shaft, and achieves cost reduction and efficiency improvement.

The utility model relates to the field of steel structure cutting, in particular to an angle grinder base convenient for steel structure cutting, which comprises a base, a cutting table mounted at the top of the base, supporting plates mounted on two sides of the top of the cutting table, a first guide rod mounted between the two supporting plates, and a first screw rod mounted between the two supporting plates. According to the angle grinder base convenient to cut the steel structure, due to the ingenious structural design, low cost and simple later maintenance, the equipment purchase and operation and maintenance cost of an enterprise is reduced, and the angle grinder base convenient to cut the steel structure is high in practicability and high in practicability. Precise adjustment is achieved through the limiting assembly, the fixing assembly, the lead screw and the first guide rod, the traditional manual handheld operation mode is changed, the labor intensity of workers is reduced, the cutting precision and the part size qualification rate are improved, the safety of operators is guaranteed, the operation efficiency is improved, economical efficiency and practicability are both achieved, and the steel structure cutting device is suitable for various steel structure cutting scenes.

The utility model relates to the technical field of machinery, and discloses a conveyor belt tensioning device of a multi-station press machine, which comprises a supporting seat, a servo motor, a bidirectional screw rod, a moving block, an adjusting frame, a tensioning roller and the like, the servo motor drives the bidirectional screw rod to drive the moving block to move horizontally, and the adjusting frame is connected with the moving block through a sliding rod. And the guide columns slide in the inclined guide grooves, so that the tensioning roller synchronously ascends and descends during horizontal movement, and dynamic adjustment of the tensioning degree of the conveying belt is achieved. When heavy objects are conveyed, the wrap angle between the conveying belt and the transmission roller can be increased by lifting the tensioning roller, and the friction force and the transmission stability are improved.

The invention relates to the technical field of photography, and provides a camera device which comprises a machine shell, a lens module and a first rotation driving mechanism, the lens module is rotatably installed in the machine shell around a lens rolling shaft, the first rotation driving mechanism comprises a driving wheel, a tensioning wheel, a driven wheel and a synchronous belt, the driving wheel and the tensioning wheel are rotatably installed in the machine shell, and the driven wheel is driven by the synchronous belt. The driven wheel is fixedly installed on the lens module and abuts against the outer side of the synchronous belt. The synchronous belt is connected with the driving wheel and the tensioning wheel in a sleeved mode, or the first rotation driving mechanism further comprises a fixed wheel, and the synchronous belt is connected with the fixed wheel and the tensioning wheel in a sleeved mode. The synchronous belt can be well attached to the driving wheel and the driven wheel, a rigid gear gap is eliminated, it is guaranteed that the lens module is driven by the first rotation driving mechanism to rotate synchronously, meanwhile, the number of parts of the first rotation driving mechanism is small, the synchronous belt does not need to be sleeved with the driven wheel, the size is short, and the overall size and rotational inertia of the machine shell can be reduced.

The utility model relates to the technical field of range extending type automobile, especially increase a kind of active air intake grille structure for range extender, including grille frame, the upper or front area of car rear wheel package is provided with grille mounting hole;Grille frame one end is embedded and fixed in the inboard of grille mounting hole, forms air inlet end, the other end is equipped with air outlet end, for connecting the air intake system of range extender;Drive assembly is located on grille frame, for driving flap to carry out overturning movement, to open or close air inlet end. By arranging air inlet end in the upper or front area of car rear wheel package, and setting flap controlled by drive assembly, active opening and closure to air inlet end are realized. When vehicle is in pure electric driving mode, range extender does not need to work, flap closes air inlet end under the action of drive assembly, effectively reduces vehicle front end airflow interference, reduces air resistance, improves pure electric cruising range;When range extender starts, flap is automatically opened, guarantees engine air intake demand.

The utility model relates to ceramic fiber cotton processing equipment technical field, and disclose a kind of ceramic fiber cotton processing silk throwing device, including placing mechanism, is equipped with silk throwing placement bin, auxiliary turning-out groove is opened in the top of silk throwing placement bin, and assembly hole and support are equipped in bottom, rotating mechanism is constituted by speed reducer and connecting frame, and the output of speed reducer is connected with the connecting frame. The utility model is convenient to drive silk throwing assembly and rotary drive mechanism to turn out silk throwing placement bin by rotating mechanism and arc auxiliary turning-out groove cooperation, solve traditional device material loading and unloading difficult, component maintenance inconvenient problem, greatly improve operation efficiency and device maintainability, reduce manual operation intensity.

A toothed chain transmission system, belonging to the field of chain drive technology, includes a toothed chain and sprockets that mesh with each other. The chain includes guide plates, toothed chain plates, pins, and rollers. Rollers are mounted on the pins. The guide plates are located on both sides of the chain, and the two ends of the pins are respectively interference-fitted with first connecting holes on the guide plates. The toothed chain plates include first toothed chain plates and second toothed chain plates. The first toothed chain plates are arranged side by side along the pin axis on two adjacent pins between adjacent guide plates. The second toothed chain plates are connected to two pins located on the inner side of the first toothed chain plates between adjacent first toothed chain plates. This invention is based on the meshing transmission principle of toothed chains and optimizes and improves the original toothed chain, thereby achieving the goals of noise reduction, load increase, and transmission efficiency improvement when used in conveying equipment, significantly improving the overall performance and reliability of the chain drive system.

This utility model discloses a power transmission component structure for an electric micro-tiller, belonging to the field of agricultural machinery technology. It includes a mounting frame, with a transmission mechanism fixedly connected to the upper surface of the mounting frame. An adjustment mechanism is provided on the inner wall of the transmission mechanism. The transmission mechanism includes a mounting plate fixedly connected to the upper surface of the mounting frame, a motor fixedly connected to the side surface of the mounting plate, and a reducer fixedly connected to the upper surface of the mounting plate. The output shaft of the motor is fixedly connected to the input end of the reducer. This power transmission component structure for an electric micro-tiller forms a closed space through a screw connection between a sealed housing and a support plate, effectively isolating external dust, mud, and moisture, and preventing impurities from entering the sprockets, chains, and other transmission components. Simultaneously, the grease applied to the surface of the components reduces meshing friction and wear, lowers operating noise, and the detachable design of the sealed housing facilitates later maintenance and replacement.

The invention discloses a self-locking anti-backlash and segmented loading coating scratch testing device, comprising: a transmission mechanism mounted on a frame and used for providing rotation power and realizing self-locking; the loading mechanism is connected with the output end of the transmission mechanism and is used for converting the rotary motion into linear pressing motion and providing a linearly changing load for the pressing head; the measuring module is integrated on the loading mechanism and is used for detecting a normal load and a tangential shear force applied to the pressure head in real time; and the moving platform is used for bearing the sample. The transmission mechanism comprises a servo motor and a double-lead worm and gear pair driven by the servo motor. The loading mechanism comprises a cam shaft, a linear cam and a plane follower, and the working end of the plane follower is kept in contact with the contour curved surface of the linear cam. According to the invention, the dual-lead worm and gear transmission with a self-locking anti-backlash function is combined with the linear cam loading mechanism with segmented profile curves, so that the load control accuracy and the loading linearity are ensured, and the coating scratch test precision is improved.

The utility model discloses a catenary maintenance box step advancing wheel locking mechanism which comprises a fixing piece, a locking piece and a locking piece, and a pressing device is arranged in the fixing piece. The locking device is installed in the fixing piece and connected with the pressing device; when the wheel is locked, power is applied to the pressing device, so that the pressing device drives the locking device to move and be inserted into a wheel positioning hole of the wheel. Compared with the defects that a mechanical buckle device is insufficient in clamping force, easy to slip and the like, the locking mechanism has the advantages that the locking device is inserted into the wheel positioning hole, so that the wheel can be locked more stably, the locking reliability is improved, and the stability of the box step in the overhauling operation process is guaranteed.

The invention discloses a method for calculating the contact stiffness of a planetary roller screw under mixed lubrication, and belongs to the field of planetary roller screw transmission. The method comprises the steps that on the basis of a planetary roller screw mixed lubrication contact interface model, the rough contact load of a thread tooth is calculated through a GW model, the oil film contact load is solved through a central film thickness dimensionless equation, the oil film thickness, the rough contact load and the oil film load are solved at the same time, and according to the solved rough contact load, the rough contact load of the thread tooth is calculated. And solving the rough contact rigidity of the planetary roller screw under mixed lubrication by using a WAO model, and solving the oil film rigidity of the planetary roller screw under mixed lubrication by using the oil film thickness and the bulk modulus, so that a contact model of the planetary roller screw under mixed lubrication can be obtained. According to the method, the blank of a planetary roller screw contact stiffness model under mixed lubrication is filled up, and the influence of factors such as the axial load, the surface roughness and the lubricant viscosity of the planetary roller screw on the mixed lubrication contact stiffness can be directly solved.

The invention discloses a taper sleeve type impeller mounting shaft disc, an impeller and a fan comprising the same, and relates to the technical field of ventilation equipment. The shaft disc main body is provided with a central through hole and a mounting part for mounting an impeller; the taper sleeve is sleeved in a central through hole of the shaft disc main body, and an inner hole of the taper sleeve is a through hole for a fan shaft or a motor shaft to penetrate through; the outer wall of the taper sleeve is in taper fit with the inner wall of the central through hole of the shaft disc main body; at least one group of matching holes are correspondingly formed in the shaft disc main body and the taper sleeve, each group of matching holes comprises two half holes which are respectively formed in the shaft disc main body and the taper sleeve, and when the shaft disc main body is aligned with the taper sleeve, the two half holes are aligned to form a complete mounting hole or dismounting hole. The shaft disc is divided into the shaft disc main body and the taper sleeve, so that the shaft disc main body can realize standardized batch production, the shaft disc can adapt to various shaft diameters only by replacing taper sleeves with different inner diameters, the universality of parts is greatly improved, and the production cost and the inventory pressure are reduced.

The embodiment of the utility model relates to the technical field of dexterous hands, in particular to a micro-joint module, a finger module and a dexterous hand. The micro-joint module comprises a shell, a transmission mechanism and a driving mechanism. The shell is provided with a first transmission cavity and a second transmission cavity which communicate with each other, and the first transmission cavity and the second transmission cavity are stacked in the first direction. The transmission mechanism comprises a worm gear and a worm, the worm gear is contained in the first transmission cavity and can rotate in the second direction, the worm is contained in the second transmission cavity, a rod body of the worm is arranged in the third direction, the worm gear and the worm are meshed at the communication position of the first transmission cavity and the second transmission cavity, and the worm gear is used for driving the worm to rotate in the third direction. The driving mechanism is connected with the worm gear in the third direction and used for driving the worm gear to rotate around the third direction. Wherein the shell is contained in the knuckles of the finger module, through the structure, the purpose of outputting power is achieved, the current situation of tooth surface stress concentration is further improved, and the transmission efficiency and the transmission reliability are improved.

The utility model relates to valve technical field especially relates to a kind of liquid hydrogen stop valve of magnetic coupling drive, including valve assembly, valve assembly includes valve body part and the movable part installed on valve body part, movable part is used to open or close valve body part, elastic member is installed on movable part, inductive unit is installed on valve body part, elastic member is used to exert pre-tightening force to movable part, inductive unit is used to detect the stress value of elastic member, drive assembly is installed on valve body part, when inductive unit detects the stress value of elastic member is F1, it sends signal to drive assembly;The utility model realizes the control to drive assembly by the stress change of conical spring, so that valve can make support assembly play the supporting effect to valve core in opening state, prevent the sliding of valve core caused by magnetic coupling device failure, ensure the safe use of valve.

The utility model relates to the technical field of submarine shaft construction, disclose a kind of slurry balance anti-well drilling machine, comprising: anti-pulling driving device, suitable for installation on seabed;Tunneling host, including cutterhead and shield body;Drill rod, its upper end is drivingly connected with anti-pulling driving device, its lower end is connected with tunneling host;Anti-pulling driving device carries tunneling host and provides upward tunneling driving force for tunneling host.Slurry balance anti-well drilling machine is not set to push system, directly through anti-pulling driving device carries tunneling host and provides upward tunneling driving force for tunneling host, applicable to hard rock formation, improve tunneling efficiency, shorten construction cycle, further reduce the risk of water seepage, enhance the adaptability of equipment, expand the site selection range of nuclear power plant or deep sea sewage;And because there is no push system, will not occupy the internal space of main tunnel and squeeze the space of fire escape passage.

The application relates to a joint module shell structure, a joint module and a robot. A joint module shell structure is applied to a joint module, the joint module comprising a motor and a planetary reducer, the motor comprising a stator, the planetary reducer comprising at least one gear ring, the joint module shell structure comprising a first shell, the first shell comprising: a main body in a ring shape, an inner wall of the main body being configured to form a stator positioning surface for positioning the stator; and a cantilever arm integrally connected to the inner wall of the main body and extending inward from the inner wall of the main body, the cantilever arm having a gear ring positioning surface for positioning the gear ring. The joint module shell structure, the joint module and the robot can improve the assembly coaxiality between the motor and the reducer, improve the transmission reliability, and improve the structural compactness of the joint module.