24results about How to "Large transmission ratio" patented technology

The utility model relates to an in-situ torsion experiment device for X-ray CT (Computed Tomography), and belongs to the technical field of scientific instruments for in-situ torsion experiments for X-ray CT. Comprising a driving assembly, a torque sensor and a clamp assembly. Two ends of a shaft of the torque sensor are respectively connected with the driving assembly and a clamp. The driving assembly comprises a motor, an outer shell, a worm gear and a worm, the worm gear and the worm are rotationally arranged in the outer shell and meshed, the upper end of the worm gear is in key connection with the lower end of the torque sensor, and one end of the worm is connected with the output end of the motor. The driving assembly is stable in transmission during an experiment, has a self-locking function, prevents reverse rotation, improves the detection accuracy, is compact in structure, has a large transmission ratio, is suitable for speed reduction, is low in noise and small in vibration, and effectively prevents the influence on other works in a laboratory.

The invention provides a continuous feeding device and method for square bars. The device comprises two roller driving units which are symmetrically arranged on the two sides of a square bar feeding path. Each roller driving unit comprises a box body, a worm rotatably arranged in the box body, at least two worm gears meshed with the worm, rollers coaxially and fixedly connected with the worm gears, and a driving mechanism; the rollers are configured in a manner that the working surfaces of the rollers can accommodate and press the side surfaces of the square bar, and a feeding cavity for clamping the square bar is formed between the corresponding rollers of the two roller driving units; the driving mechanism is connected to the worm and used for driving the worm to rotate. According to the square bar feeding device, a structure that a plurality of worm wheels on the same side are driven by a single worm at the same time is adopted for feeding square bars, stable conveying of the square bars can be achieved, and the problems that the square bars are prone to deflection or torsion in the feeding process, and the feeding precision and stability are difficult to guarantee are solved.

This invention discloses a rocket-shaped rotating amusement ride, belonging to the field of amusement equipment technology. The ride includes a column, a lifting and rotating assembly that can move up and down along the column, and multiple rocket cabin assemblies suspended from it. The lifting mechanism includes a fixed pulley at the top of the column and a drive pulley system on the ground. A steel cable passes around the fixed pulley, connecting the lifting and rotating assembly and the drive pulley system, and is balanced by a counterweight. The drive pulley system uses a hydraulic cylinder to change the distance between its internal upper and lower pulley systems to raise and lower the steel cable, achieving efficient and stable lifting. The lifting and rotating assembly can rotate horizontally, and the rocket cabin assemblies can rotate around their own axes. This invention has a novel structure, greatly enhancing the richness and excitement of the amusement experience through multiple composite movements such as lifting, revolution, and rotation.

The utility model discloses a kind of high radiation-tolerant underwater lamps, belong to underwater lamp technical field, solve when needing to the environment of different positions below water surface is clearly collected, then it needs to adjust the irradiation angle of underwater lamp, and ensure that the angle of underwater lamp cannot appear the situation of shaking due to the impact of water flow, otherwise it can cause the problem of influence to the environment collection below water surface. Including lamp shell, and a plurality of lamp bodies are set on lamp shell, the back of the lamp shell is fixedly connected with a set of hinged frame. When the utility model adjusts the angle of underwater lamp, traction electromagnet is powered off, elastic push-pull rod pushes away limit rod from tooth groove, friction strip is displaced under waterproof electric push rod control, the convex of friction sleeve and friction wheel increases friction coefficient, realizes that transmission ratio increases, friction wheel drives hinged frame and lamp body to rotate, completes angle adjustment. After adjustment, traction electromagnet is powered on, pull limit rod and embed tooth groove, fixed turntable, prevent underwater lamp from being affected by water flow and shaking.

The utility model provides a novel vertical axis ring wind wheel fan, and the fan includes wind wheel subassembly and guide rail support, wind wheel subassembly includes wind wheel frame, a plurality of inclined supports and blade, the inclined support is located on the wind wheel frame, the blade is located on the wind wheel frame, ring beam subassembly is connected with wind wheel frame subassembly rotation, and the wind wheel frame is separated from the tower column to make wind wheel subassembly lightweight and reduce the starting inertia of wind wheel frame, the blade is installed on the wind wheel frame, the blade quantity can increase at will but the weight increases not much, and the whole fan adopts the modularization design, makes the cost minimization, and the installation is convenient.

The invention relates to the field of electric power, and discloses a multi-degree-of-freedom wave power generation device which comprises a turbine and two floating mechanisms, first bevel gears are symmetrically and fixedly mounted on the left side and the right side of the turbine, and the two floating mechanisms are symmetrically arranged on the left side and the right side of the turbine; and the two speed change mechanisms are symmetrically arranged at the bottoms of the two floating mechanisms correspondingly, each speed change mechanism comprises a second mounting shell, the second mounting shells are arranged on the bottom faces of the floating mechanisms, and a speed regulating mechanism is arranged on the side, close to the floating mechanisms, of an inner cavity of each second mounting shell. The transmission ratio of the speed adjusting mechanism to the transmission mechanism is automatically adjusted through the floating mechanism, kinetic energy increased by waves is converted into electric energy generated by the power generator to the maximum extent, and the problem that when the waves are too small, kinetic energy generated by rotation of a turbine of an existing power generation device is insufficient to push the power generator to rotate for power generation is solved. The problem that an existing power generation device cannot effectively convert kinetic energy of waves into electric energy generated by a power generator to the maximum extent is solved.

This utility model discloses an adjustable-height composite lathe tool, relating to the field of lathe tool technology. It solves the technical problems of existing solutions, such as low adjustment precision, inability to continuously adjust, cumbersome operation, and low efficiency. The tool includes a base, a tool holder, and a cutting blade. The cutting blade is disposed on the upper wall of the tool holder, which is slidably mounted on the base. A fixed cylinder is provided on the base, and a threaded hole is formed inside the fixed cylinder. A screw is rotatably mounted inside the tool holder, and the screw is threadedly connected to the threaded hole of the fixed cylinder. This utility model employs a screw-driven, inclined-plane-wedge-tightened structure. When the screw is rotated, its rotational motion is converted into linear micro-movement of the tool holder along the inclined plane through the threaded pair. The linear displacement of the tool holder is then converted into even smaller vertical displacement of the cutting blade through the inclined plane structure. This mechanical transmission method has a large transmission ratio, allowing the operator to easily achieve continuous, stepless, and high-precision adjustment of the cutting blade height by rotating the screw.

This invention belongs to the field of activated carbon preparation technology, specifically relating to an activated carbon forming device, including a shell, a honeycomb forming component, a feeding component, and a driving component. The honeycomb forming component, the feeding component, and the driving component are disposed within the shell. The honeycomb forming component includes a bottom honeycomb plate and an extrusion section. The extrusion section is connected to the driving component. A plurality of honeycomb forming rods extend from the bottom of the extrusion section, and the plurality of honeycomb forming rods are slidably disposed in the honeycomb holes of the bottom honeycomb plate. A honeycomb forming cavity is formed between the extrusion section and the bottom honeycomb plate. The feeding component slides against the side of the extrusion section. The driving component drives the extrusion section to push the feeding component to move. The extrusion section and the feeding component alternately add material and extrude coal slime into the honeycomb forming cavity multiple times until activated carbon blocks are formed. This can avoid the problem in the prior art where activated carbon blocks penetrate into a honeycomb shape after forming, causing part of the structure to fall off.

The utility model discloses a reducer with the function of swing of output shaft, including output shaft, swing guide piece, swing block, first drive motor, box, vertical shaft, second drive motor, planetary gear, planetary gear axle, upper internal gear disc, lower internal gear disc, worm and gear drive group, bevel gear set and gear drive group, the output of first drive motor is connected with vertical shaft lower part through worm and gear drive group and bevel gear set, and the upper portion of vertical shaft is connected with one end of output shaft through bevel gear set, and output shaft rotatory installation is in swing block, and swing block sliding installation is on swing guide piece, the both sides of swing block rotatory installation has planetary gear axle, and the upper end of planetary gear axle is connected with planetary gear respectively, and the planetary gear of two planetary gear axle upper ends is engaged with upper internal gear disc and is connected with the output of second drive motor through gear drive group, and the planetary gear of two planetary gear axle lower ends is engaged with lower internal gear disc. Output shaft has the dual function of rotation and swing, and improves the steering flexibility.

The invention relates to a winching structure for a power transmission line maintenance lifting device, which comprises a bearing seat, the bearing seat is placed above a cross arm, the cross arm comprises a vertical plate, a mounting seat is arranged above the bearing seat, a movable clamping seat is arranged on the front side of the mounting seat, a bottom plate is arranged at the bottom of the movable clamping seat, and a movable clamping seat is arranged on the bottom plate. Clamping arms are symmetrically hinged to the left side and the right side of the bottom plate, clamping grooves are formed in the sides, close to each other, of the two clamping arms, a driving mechanism is arranged on the side, away from the movable clamping base, of the mounting base, and a driving part is arranged in the driving mechanism; the bearing seat is placed above the cross arm and connected with the cross arm through the positioning mechanism, the bottom of the mounting seat and the bottom of the driving mechanism are connected with the bearing seat through bolts, bolt holes are formed in the corresponding positions of the surface of the bearing seat, and the multi-layer connecting mode ensures that the whole device is firmly and reliably mounted on the cross arm; and shaking or displacement is not prone to occurring, and operation safety is guaranteed.

The application relates to the technical field of medical devices, and provides a clamping device for a bedside attached rail, a base assembly and a clamping mechanism; the clamping mechanism comprises a movable piece, an intermediate piece and a driving piece; the movable piece, the intermediate piece and the driving piece are respectively rotationally connected to form a linkage structure, and the base assembly is provided with a protruding part; the movable piece is matched with the protruding part during movement and is used for clamping the attached rail. In this way, the clamping device adopts a linkage mode to clamp the attached rail, the clamping force of the structure is controllable, the damage to the attached rail is small, and the clamping device is simple to operate and requires a small operation space.

The utility model discloses an adjustable base for crane belongs to crane equipment technical field, it includes: base, the one side of base is provided with controller, and the bottom fixed mounting of base has four groups of support column, and the inside rotatory mounting of base has the shaft and worm, the outside fixed mounting of shaft has worm wheel, and the top fixed mounting of shaft has workstation, and the bottom fixed mounting of workstation has rotating ring, and the top fixed mounting of base has rotating seat, and the bottom fixed mounting of base has support board, and the one side fixed mounting of support board has hydraulic cylinder, and the bottom sliding installation of base has two groups of inclined piece no.

The utility model relates to the field of electromagnetic valve machining, and discloses a low-temperature electromagnetic valve machining clamp which comprises a machining table, and supporting legs are fixedly connected to the four corners of the bottom of the machining table. The front side and the rear side of the top of the machining table are each provided with two sliding grooves, the front sliding grooves and the rear sliding grooves on the same side are distributed in a bilateral symmetry mode, the inner sides of the sliding grooves are slidably connected with sliding blocks in a clamped mode, the tops of the sliding blocks are fixedly connected with clamping plates, and the front clamping plates and the rear clamping plates on the same side extend oppositely. The two corners of the opposite sides of the tops of the left clamping plate and the right clamping plate are perpendicularly and fixedly connected with inner supporting columns. According to the electromagnetic valve clamping device, the electromagnetic valve can be centered and clamped through the clamping grooves in the clamping plates, external clamping is achieved, the inner wall of the electromagnetic valve can be supported through the inner supporting and supporting columns to be limited, internal clamping is achieved, and the adaptability of the internal and external combined clamping mode is higher.

This invention discloses an electronic expansion valve structure and vehicle, comprising a valve seat and a housing. A valve core seat is disposed within the valve seat, and a valve core capable of axial displacement is disposed within the valve core seat. A rotor and a transmission rod are coaxially arranged within the housing. The transmission rod is axially limited and circumferentially rotatable, and is fixedly connected to the rotor. The central axis of the transmission rod is not collinear with the central axis of the valve core. The transmission rod and the valve core are connected by a worm gear and rack mechanism. This invention provides a novel split-type transmission valve core structure to achieve transmission, adjustment of valve opening, and change of step angle.

The utility model belongs to locomotive transmission system technical field provides a new energy locomotive wheel pair drive arrangement, include: motor, hoist in the car body bogie below, speed reducer, its input end is through the shaft coupling with motor phase transmission connection, and wheel pair mechanism is connected with the transmission of speed reducer's output, is used for bearing locomotive weight, wherein, the speed reducer includes the box and is located in the input shaft subassembly of box inside, intermediate axle subassembly, output shaft subassembly, input shaft subassembly, intermediate axle subassembly and output shaft subassembly are gear transmission connection in proper order to constitute two stage gear transmission pair. The speed reducer set up of utility model adopts two stage gear transmission, compares with primary transmission, transmission ratio is big, can be matched with the smaller motor of using volume and drive wheel pair mechanism to pull, thereby lightens the weight of motor, reduces the cost.

The utility model discloses a kind of steel box girder processing pre-assembly support structure, relate to steel structure processing assembly technical field, to solve the technical problem of existing support jig adjusting laborious, without self-locking and lifting easy self-rotation leading to unstable support, the utility model includes the support component on substrate, this component has fixed support column and the movable sleeve of axial movement.It is adjusted component to adopt worm drive turbine, turbine drives screw rod rotation, drives the lifting of movable sleeve with it thread cooperation;Another with the anti-rotation mechanism of guide rod and guide groove composition is to limit the rotation of movable sleeve.The utility model realizes labor-saving adjustment and reliable self-locking by worm gear mechanism, guarantees lifting smooth and positioning accurate by anti-rotation mechanism, compact structure, safe and reliable, significantly improve assembly efficiency.

The utility model discloses a radar support and a radar mounting structure, and relates to the technical field of radar supporting and mounting, the radar support and the radar mounting structure comprise a bottom plate, semicircular plates are symmetrically and fixedly arranged on the upper surface of the bottom plate, a half-surface worm gear is fixedly connected between the semicircular plates, and a rotating frame is arranged on the outer sides of the two semicircular plates in a common rotating mode. The radar support and the radar installation structure are characterized in that a half-face worm gear is arranged on the upper inner wall of the rotating frame, limiting blocks are symmetrically and fixedly arranged on the lower inner wall of the rotating frame, a worm is rotationally arranged between the two limiting blocks, a rotary knob is fixedly arranged at one end of the worm, and the worm is connected with the half-face worm gear in a meshed mode. The structure is compact, the transmission ratio is large, the pointer groove and the dial are matched, accurate fine adjustment and visual reading can be achieved, and diversified requirements are met; the radar and the rotating seat are connected through the mounting plate, clamped and fixedly combined with bolts, the radar is stable and convenient to disassemble and assemble, the maintenance cost is reduced, and the working efficiency is improved.

The speed reducer comprises a rigid first wheel, a flexible second wheel and a transmission unit, the first wheel is provided with a through first channel, the second wheel is coaxially arranged in the first channel, the second wheel is provided with a through second channel, and the transmission unit is coaxially arranged in the second channel. The outer wall of the second wheel, the inner wall of the first channel and the inner wall of the second channel are smooth surfaces; the transmission unit is coaxially arranged in the second channel of the second wheel, and the rotating transmission unit drives the second wheel to generate periodic elastic deformation so that the pressing contact area can continuously move in the circumferential direction of the first wheel. The planetary gear train composed of the first gear, the second gear and the rolling body serves as a harmonic generator, and the harmonic effect is achieved through magnetic force, so that on the premise that input and output are kept coaxial, the composite transmission effect of the large transmission ratio and the high transmission precision is achieved, and the service life is prolonged. And the problem of backlash change caused by thermal expansion and cold contraction in a large-temperature-difference environment can be avoided, and the stability and reliability of a transmission system are improved.

The application discloses a combined marine propelling device, which comprises a device main body, a planetary gear mechanism, a quick-release mechanism and an anti-winding mechanism, wherein the planetary gear mechanism is connected with a power source input end of the device main body through a transmission shaft, the quick-release mechanism is embedded in a component connecting position of the device main body, and the anti-winding mechanism is fixed around a blade outer peripheral area of the device main body. The anti-winding mechanism is fixed around the blade outer peripheral area of the device main body, a fixed cutter is fixed on the outer periphery of a blade mounting base through welding, and a cutting cutter is mounted on one end of the device main body. The connecting mode can effectively prevent sundries in water from winding around the blade, so that the normal operation of the propelling device is ensured, and the sailing safety of a ship is improved.

The invention relates to a power tool, in particular a tube press, comprising a drive, an output shaft, a threaded spindle drive and a linear actuator, wherein a torque generated by the drive can be transmitted to the linear actuator via the output shaft and the threaded spindle drive connected to the output shaft. The power tool comprises an eccentric gear for torque adjustment between the drive and the threaded spindle drive, wherein the eccentric gear comprises a drive eccentric which can be driven by the drive, an eccentric gear wheel which can be driven by the drive eccentric, and a compensation coupling which can be driven by the eccentric gear wheel and serves to transmit torque from the eccentric gear wheel to the output shaft.

The application provides a wheel shaft type continuously variable transmission and relates to the technical field of automobile manufacturing.The wheel shaft type continuously variable transmission comprises a driving disc and a driven disc arranged in front and back, the outer side end face center of the driving disc is connected with a driving shaft, the outer side end face center of the driven disc is connected with a driven shaft, a cross-shaped first total support is arranged between the driving disc and the driven disc close to the driving disc side, a cross-shaped second total support is arranged between the driving disc and the driven disc close to the driven disc side, a driving gear is arranged between the first total support and the second total support, the driving gear is connected with a driving motor, one first friction wheel assembly is arranged on each of the four supporting rods of the first total support, one second friction wheel assembly is arranged on each of the four supporting rods of the second total support, a gear ring is arranged on the outer side of the first friction wheel assembly and the second friction wheel assembly on the same side, and the inner side of the gear ring is engaged with the outer side of the first friction wheel assembly and the second friction wheel assembly.

This utility model relates to the field of gear processing technology, and in particular to a cold forging forming device for locking differential connecting gears. The technical solution includes: a gear-cutting head movably mounted on a base, with a cutting head mounted at its output end; an indexing plate movably mounted below the gear-cutting head on the base; a Y-axis moving module mounted on the base, connected to an X-axis moving frame via a Y-axis moving frame and an X-axis moving module; a Z-axis moving module and a limiting module mounted on the X-axis moving frame; the gear-cutting head mounted on the Z-axis moving module via the Z-axis moving frame; a sliding groove and a first locking tooth on the X-axis moving frame, through which the limiting module is positioned; and a baffle on the Z-axis moving frame cooperating with the limiting module to restrict the movement distance of the gear-cutting head. This utility model, through the cooperation of a spring rod and the locking tooth, can quickly adjust the limiting position according to gears of different thicknesses, making the gear-cutting head suitable for processing gears of different specifications, thus possessing greater versatility and flexibility.

This invention discloses a leg structure for a wheel-legged hybrid robot based on the planetary gear differential principle, and the wheel-legged hybrid robot itself. The leg structure includes a power source module, a power switching module, a thigh mechanism, a wheel mechanism, and a lower leg mechanism. The power source module includes a first power source and a second power source, with the second power source driving the lower leg mechanism. The power switching module enables power switching between the thigh and wheel mechanisms: during leg movement, the thigh mechanism receives power from the first power source; during wheel movement, the wheel mechanism receives power from the first power source. Compared to traditional wheel-legged hybrid robots on the market, this invention achieves power output from two power sources to three motion mechanisms. Compared to dual-power-source wheel-legged hybrid robots, the wheel mechanism does not move during leg movement, thus more effectively saving energy and ensuring endurance.

The utility model relates to the field of ship ventilation equipment, in particular to a worm gear and worm air adjusting door which comprises a frame body, a gate plate is rotationally connected into the frame body, a rotating shaft is fixedly connected to the gate plate, the end of the rotating shaft extends out of the side wall of the frame body, and a worm gear and worm transmission assembly for driving the rotating shaft to rotate is arranged on the frame body. The air adjusting device has the effects that rotation of the air adjusting door can be adjusted conveniently, and operation of a user is facilitated.