2799 results about "Worm drive" patented technology

The utility model discloses a pressure controllable type machine tool clamp, belongs to the technical field of machine tool clamps, and aims to solve the problems that a workpiece cannot be clamped stably and cannot be protected. The pressure controllable type machine tool clamp comprises a concave frame, a disc is fixedly connected to the top of the concave frame, and a rotating shaft penetrating through the disc is rotationally connected to the upper surface of the bottom of the concave frame; the worm wheel is matched with the worm, the rotating wheel is rotated to enable the worm to rotate, and the worm wheel meshed with the worm drives the rotating shaft to rotate, so that the disc rotates, the disc rotates to drive the arc-shaped guide groove to push the guide wheel to move, and the guide wheel drives the sliding rod to move. The multiple sliding rods are driven to move towards the inner side, the multiple arc-shaped chucks are driven to clamp and fix a workpiece, the workpiece is clamped from four directions at the same time, the workpiece can be stably fixed, production errors caused by deviation of the workpiece in the machining process are avoided, and the production precision and stability are improved.

An automated hand having an arrangement for mounting a digit connector such that the connector can rotate when a force is applied to a digit. The arrangement can include a rigid mount and a resiliently deformable sleeve, with the connector within the sleeve. The automated hand can be compatible with a touchscreen. The automated hand can have a worm drive for rotating a digit, the worm drive including a bearing configured to resist axial loads in both directions. The automated hand can have a thumb with an auxiliary support. A catch can be provided to restrict pivoting of a digit under load. A wrist can be clamped to the hand, can be releasably electrically coupled to the hand, can be locked against rotation, and can include resiliently deformable pieces. A cover can also be provided for an automated hand. The cover can include a knitted body and a structural brace.

The rubber tapping device relates to the technical field of rubber tapping equipment, the operation smoothness and stability of the rubber tapping device in the prior art are improved, and the operation cost of the device is reduced. The rubber tapping device comprises a first tool apron, the worm gear is rotationally arranged on the first tool apron; the rubber tapping cutter bar is fixedly connected with a shaft of the worm gear and is used for driving the rubber tapping cutter bar to rotate; the rubber tapping blade is arranged on the rubber tapping cutter bar; the worm is meshed with the worm gear; and the output end of the motor is connected with the worm. A motor, a worm, a worm gear, a rubber tapping cutter bar and a rubber tapping blade are integrated in the device, the motor is used for driving the worm to rotate, the worm further drives the worm gear to rotate, the worm gear is in transmission connection with the worm, and under the cooperation of an electronic induction device, rotating operation power is provided for the rubber tapping blade in the cutter feeding, cutter discharging and resetting processes; and meanwhile, the bark can be cut off in a relatively labor-saving manner, and the smoothness of rubber cutting operation is guaranteed.

An anti-theft device for securing merchandise against theft. The anti-theft device has a stand that mounts onto a display surface. A pair of arms is disposed in a linear sliding relationship relative to the stand. The arms terminate with inwardly facing grips that receive the opposing edges or corners of the merchandise. The arms have gear racks operatively engaged by a pinion gear. The pinion gear is joined to a concentrically aligned worm wheel, which is operatively engaged by a worm. A motor is configured to selectively spin the worm in the first or the second direction, thereby selectively retracting or extending the arms relative to the stand to secure or release the merchandise, respectively. The worm drive immobilizes the arms against being extended from the stand using manual force, thereby locking the merchandise to the stand. A fob may be used to transmit a signal that actuates the motor.

The invention discloses a finger module, a manipulator and a robot. The finger module comprises a finger base, and a knuckle assembly is rotationally connected with the finger base; the driving assembly comprises a driving component, a worm and a worm gear, the driving component is arranged on the finger base, the worm is arranged in the finger base and connected with an output shaft of the driving component, and the worm gear is connected with the worm in an engaged mode. The other end of the connecting rod component is in transmission connection with the knuckle assembly; the driving component is configured to drive the worm to rotate and drive the connecting rod component to rotate through the worm gear so as to drive the knuckle assembly to rotate relative to the finger base. By means of the large transmission ratio characteristic of worm gear and worm transmission, the original relatively small torque of the driving component is amplified, strong driving force is provided for rotation of the knuckle assemblies, the knuckle assemblies rotate relative to the finger base, bending and stretching movement of human finger joints is simulated, the finger module achieves actions such as bending and stretching, and therefore the flexibility of the finger module is improved. Therefore, various grabbing and operation tasks can be completed.

The invention relates to the technical field of galvanized coiled plate machining, in particular to a galvanized coiled plate edge cutting device and an edge cutting method thereof.The galvanized coiled plate edge cutting device comprises an operation table, two rotating holes are formed in the upper side of the operation table, edge cutting and polishing assemblies are rotationally installed in the two rotating holes, and spraying assemblies are fixedly installed on the two sides of the operation table; an adjusting knob is manually rotated, the manual adjusting knob drives a worm to rotate, the worm drives a worm gear to rotate, the worm gear drives a first-stage half gear to rotate, the first-stage half gear drives a second-stage half gear to reversely rotate, the first-stage gear drives a driving block to move, and the driving block drives a driving plate to horizontally move under the limiting action of two sliding rails; the polishing support drives the polishing rollers to move, the two polishing rollers abut against each other correspondingly, after the cutter completes edge cutting, the two polishing motors are started, the output ends of the two polishing motors drive the polishing rollers to rotate at a high speed, and the cut edge area is polished to remove burrs.

The invention provides an asymmetric efficiency transmission system design method, which is applied to the technical field of transmission control, and comprises the following steps: S1, constructing a main transmission path model with a first driving side shaft part and a first load side shaft part, S2, constructing a shunt transmission path model with a second driving side shaft part and a second load side shaft part, and S3, constructing a shunt transmission path model with a second driving side shaft part and a second load side shaft part. S3, a parallel node model of the main and shunt transmission paths is constructed, a first load side shaft part and a second load side shaft part are connected through a worm and gear transmission structure, and a second load side shaft with the axial constraint rigidity being # imgabs0 # serves as a worm shaft; according to the design method, the total positive transmission efficiency and the total reverse transmission efficiency of the system and the relational expression between the parameters are obtained, model selection design is conducted on the actual rigidity characteristics and the transmission characteristics of all the models according to the relational expression, the transmission system can have the high positive transmission efficiency and the low reverse transmission efficiency through the design method, and the reverse transmission efficiency is flexible and adjustable.

The utility model provides a multifunctional measuring device, and relates to the technical field of measuring devices. A through groove is formed in the upper end of the main base, a gear is installed in the through groove in the upper end of the main base through a pin shaft, a worm gear is fixed to a center shaft of the gear, and a worm is installed at the upper end of the main base through a bearing. A wood board is measured through the scale plate on the main seat, when the length of the scale plate on the main seat is insufficient, the knob is rotated to enable the worm to rotate, the worm drives the gear to rotate, the inner rod extends out of the front side, the length of the wood board can be measured through the inner rod and the scale plate on the main seat, and the length is the sum of the reading of the inner rod and the scale of the main seat. The worm gear and the worm can prevent the inner rod from moving automatically, and reading is facilitated; the clamping buckle wheel is pulled downwards to be separated from the ratchet wheel, the ink line on the take-up barrel can be pulled out, the lower pressing plate can press the ink line downwards into an ink groove in the ink box, the measured wood board can be marked through the ink line, and cutting is convenient.

The invention relates to the technical field of oil field workover treatment, in particular to a rapid blowout wrecking device and method for minor repair operation. According to the technical scheme, a lifting mechanism is installed on workover treatment equipment through a fixing mechanism, a rotary speed reducer is installed at the upper end of the lifting mechanism, a blowout wrecking rotating arm is installed on the upper portion of the rotary speed reducer, the outer end of the blowout wrecking rotating arm is fixedly connected with a fixing base, a turbine is installed in the fixing base, and a rotating short section is installed in the center of the turbine. The lower end of the rotary short section is movably connected with a full-bore plug valve; the worm is installed on one side of the turbine, the worm is driven by the hydraulic cycloid motor to rotate, the worm drives the turbine and the rotary short section to rotate, then the full-bore plug valve is driven to be rotationally connected to an oil pipe of a wellhead, then the switch knob is closed, and blowout wrecking is completed. The full-bore plug valve is installed through mechanical rotation, the follow-up loading function is achieved, potential safety hazards caused by manual installation of the full-bore plug valve are avoided, and rapid blowout wrecking work of blowout is achieved.

The utility model relates to an automobile door lock mechanism capable of moving bidirectionally, which is characterized in that a driving motor drives a worm to rotate, the worm drives a gear to rotate, the gear drives an electric opening release lever to rotate, and an arc surface is arranged on the electric opening release lever; the gear rotates to drive the first protrusion to rotate, the first protrusion pushes the driven wheel to rotate in the notch of the driven wheel, and therefore the safety rod is driven by the swing arm to rotate, and the safety rod drives the safety pull rod to move. When the safety pull rod moves, the coupling rod is driven to rotate, so that a third convex column on the coupling rod coincides with or is staggered from the arc surface, safety is released when the third convex column coincides with the arc surface, and safety is loaded when the third convex column is staggered; in the unlocking state, the gear continuously rotates in the upper insurance rotating direction, and the upper insurance and unlocking functions are sequentially completed; when the gear completes the safety function or completes the safety function and the unlocking function at the same time, the gear rotates in the direction opposite to the rotation direction of the safety function, and the safety unlocking function is completed. Electric unlocking and electric safety locking and unlocking can be achieved at the same time, and space is saved.

The invention relates to the technical field of supporting structural parts, and discloses a chemical tanker liquid cargo pump supporting structural part which comprises a cross rod, a hanging rod, a flange seat and a pump pipe, positioning sleeves are installed on the upper circumference of the inner diameter of the flange seat at equal intervals, and wedge-shaped blocks are movably installed at the bottom ends of the positioning sleeves; by rotating a worm, the worm drives a worm gear ring outside a rotating ring, a synchronous gear ring outside the rotating ring drives a plurality of groups of synchronous gears, so that a second bevel gear synchronously rotating with the synchronous gears synchronously drives a plurality of groups of corresponding first bevel gears, and a plurality of groups of screws on the inner diameter of a flange seat synchronously rotate; therefore, the positioning sleeve drives the wedge block below the positioning sleeve to abut against the outside of the pump pipe in the flange seat, the rubber sleeve on the outer side of the wedge block can elastically connect the inner wall of the flange seat and the pump pipe, and when the pump pipe expands with heat and contracts with cold through liquid, the flange seat and the pump pipe can still be firmly connected.

The invention discloses a walk-in high and low temperature test box for automobile testing in the technical field of walk-in high and low temperature tests for automobile testing, which comprises a high and low temperature test box body, a sealing opening and closing door is arranged on one side of the high and low temperature test box body, and a temperature output assembly is arranged on the other side of the inner cavity of the high and low temperature test box body. According to the invention, refrigeration and heating cycle adjustment is facilitated through the temperature output assembly, independent work output of refrigeration and heating equipment is not needed, the configuration cost is low, the operation is simple, the operation is convenient, the cost is low, the operation is convenient, and the test efficiency is high. The space occupation ratio is small, operation is convenient and fast, during refrigerating or heating, the motor execution end drives the other end of the connected worm to be rotationally connected to the side wall of an inner cavity of the square shell for supporting rotation, and rotation of the worm drives a worm gear meshed with one side to be rotationally connected with an inner ring of a bearing part through the bottom for fixed supporting rotation.

The invention discloses a maintenance platform and new energy automobile maintenance equipment and method, and belongs to the technical field of new energy automobile maintenance. Aiming at the problems that visual angle blind areas exist in existing detection, manual errors are large, bolts are prone to missing, and a cover plate is difficult to disassemble, the equipment is provided with a clamping structure driven by a two-way lead screw through a maintenance platform body, and two sets of liftable moving plates are matched with L-shaped clamping plates to achieve multidirectional stable clamping of a battery pack; according to the double-high-definition-camera mobile detection mechanism, a rack-gear-worm transmission assembly triggered by the end of a mobile table is used for driving a battery pack to rotate intermittently in a one-way mode, and a secondary driving mechanism is formed by a hydraulic cylinder and a trapezoidal plate in a matched mode. Maintenance equipment is integrated with a magnetic type bolt collecting device, and an adsorption seat moves to drive a vacuum suction cup to automatically lift a cover plate. Through mechanical transmission and hydraulic linkage design, full-process automatic improvement of battery pack detection, bolt management and cover plate disassembly and assembly is structurally realized, and the safety and efficiency of new energy automobile battery maintenance operation are effectively improved.

The invention relates to a clamping device for plugging detection of an automobile joint system, which comprises a multi-direction vibration table, the multi-direction vibration table comprises a workbench, a track strip, an arc-shaped boss, a turntable, a threaded rod and a sliding plate, the sliding plate is provided with a rotary clamping mechanism, and the rotary clamping mechanism comprises a lifting plate, a rotary seat and a worm transmission mechanism. A rotating angle limiting mechanism is arranged on one side of the lifting plate, a connector body is fixed to the rotating base and connected with a butt joint wire harness, and an inserting and pulling force adjusting mechanism is installed on the rear side of the workbench and used for applying adjustable upward pulling force. Multi-direction vibration simulation is achieved through composite motion of the sliding plate and the lifting plate, clamping direction adjustment is achieved through the worm and the rotating seat structure, angle changes in the vibration process are effectively limited through the rotating angle limiting mechanism, the pulling-out force is flexibly controlled through the inserting and pulling force adjusting mechanism, and the clamping direction is adjusted. The simulation performance of the detection environment, the clamping stability and the detection precision can be improved.

The invention relates to the technical field of rice seedling raising, and provides a rice seedling raising device which comprises a seedling raising cabinet body, a driving assembly is arranged on one side of the seedling raising cabinet body, and limiting sliding grooves are formed in the side, close to the driving assembly, of the seedling raising cabinet body at equal intervals; a worker starts a motor to drive a rotating shaft to rotate, the rotating shaft drives a first gear to rotate, the first gear drives a fifth gear to rotate, the fifth gear drives a second worm to rotate, the second worm drives a moving block to move, the moving block moves to drive a liquid storage pipe to move, and the bottom end of the liquid storage pipe is located in a gap between rice seeds; a second worm drives a fourth gear to rotate, the fourth gear drives a first worm to rotate, the first worm drives a third gear to rotate, and the third gear drives a liquid storage pipe to rotate, so that rotation is performed while liquid is movably sprayed, spraying is more comprehensive, a supporting base is in a horizontal state, and when the liquid storage pipe moves, the liquid storage pipe does not make contact with the supporting base, so that the liquid storage pipe is more stable. And soil and rice seeds cannot be spilled out.

The invention discloses a lifting device and method for storage and transfer of an airship pod, and relates to the technical field of storage and transfer of airship pods.The lifting device comprises an upper bracket, two lifting driving assemblies, a middle support, a damping spring, a base, four wheels and a traction rod; through the modular truss structure design, the bearing capacity and the lightweight requirement are both considered; a multi-dimensional vibration reduction system is formed by the vibration reduction springs which are arranged horizontally, longitudinally and transversely and the soft rubber buffer cushion, and the structure and function integrity of the pod in the storage and transfer process can be effectively protected by matching with the flexible moving and locking functions of the universal wheels with brakes; the lifting driving assembly adopts worm and gear transmission to achieve stable lifting and + / -15-degree pitch angle adjustment, an operating hand wheel designed in an ergonomic mode is combined, electric drive is matched, and the requirement for precise adjustment and control of pods is met. And the operation efficiency is greatly improved through the quick disassembly and assembly design of the positioning and fixing assembly and the traction rod.

Disclosed herein is an actuator unit and an electro-mechanical drum brake including the same. An actuator unit includes a front housing including a worm shaft engagement provided with a worm shaft insertion hole on a back surface and protruding forward therefrom, a first bearing receiving portion extending to a rear side of the worm shaft insertion hole, a worm shaft support engagement extending to a rear side of the first bearing receiving portion, and a cylinder portion disposed on a lower side of the worm shaft engagement, a rear housing provided with a motor embedded portion and engaged with the front housing, a motor embedded in the motor embedded portion, a worm shaft including a first bearing disposed between an outer circumferential surface and the first bearing receiving portion and a worm disposed on a front end side and coupled to the worm shaft engagement and rotated by receiving a rotational force from the motor, an actuating portion including a pair of actuating pistons embedded in the cylinder portion and moving to opposite sides of the cylinder portion by a worm wheel transmitting a rotational force from the worm and rotating thereon, and a worm shaft support coupled to the worm shaft support engagement to support a rear surface of the first bearing.

The invention relates to the technical field of semitrailer production, in particular to a longitudinal beam welding device for semitrailer production and a machining method of the longitudinal beam welding device. And the rotary supporting assembly is composed of symmetrically-arranged bearing rotary discs, annular roller paths rotationally matched with the annular guide rails are arranged on the outer side faces of the bearing rotary discs in a surrounding mode, and spaced bearings are evenly distributed in the annular roller paths in the circumferential direction. The horizontal worm drives the adjusting worm gear to rotate, so that the bearing turntable rotates along the annular guide rail. Due to the fact that the tool support stretches across the bearing rotary disc, the tool support can move along with rotation of the bearing rotary disc, multi-angle overturning of the longitudinal beam fixed to the tool support is achieved, welding operation at different positions is facilitated, rapid and controllable overturning of workpieces is achieved, dependence on crown blocks, forklifts and manual operation in the traditional welding process is reduced, and welding efficiency is improved. And the machining period of a single workpiece is obviously shortened.

The utility model relates to the technical field of electrochemical descaling, and discloses a full-automatic EST electrochemical descaling device which comprises a box body, the top of the box body is fixedly connected with a descaling tank, the top of the descaling tank is fixedly connected with a water inlet pipe, the front side of the descaling tank is fixedly connected with a water outlet pipe, the right side of the interior of the box body is fixedly connected with a motor, and the right side of the interior of the box body is fixedly connected with a water outlet pipe. The output end of the motor is fixedly connected with a transmission rod, the periphery of the transmission rod is fixedly connected with a driving belt wheel, the left side of the interior of the box body is rotationally connected with a driven belt wheel, the periphery of the driving belt wheel and the periphery of the driven belt wheel are sleeved with a synchronous belt, and the top of the driven belt wheel is fixedly connected with a first rotating disc. According to the cleaning device, the worm drives the worm gear to rotate by rotating the rotating handle, and the threaded rod correspondingly rotates when the worm gear rotates, so that the movable rod ascends, the connecting rod is jacked, the connecting plate drives the scraping plate to move, and dirt on the scraping plate is cleaned.

The invention provides a double worm and gear driver. The double worm and gear driver comprises a shell; the driving motor is arranged in the shell; the first worm transmission assembly is arranged in the shell and comprises a first worm and a first worm gear which are in transmission fit, and the first worm is connected with the output end of the driving motor; the transmission gear is arranged in the shell and is in transmission connection with the first worm gear; the second worm transmission assembly is arranged in the shell and comprises a second worm and a second worm gear which are in transmission fit, and the second worm is in transmission connection with the transmission gear; the output shaft is used for being connected with an external driving load and comprises a transmission end and an output end which are connected, the transmission end is arranged in the shell and connected with the second worm wheel, the output end penetrates through the shell to the outside, the transmission structure layout of the driver is optimized, and operation noise is reduced. The invention further provides an automobile driving control system comprising the double worm and gear driver.

The invention provides a changeable adjustable field welding device, which relates to the technical field of welding and comprises a movable welding seat and a movable positioning clamp. According to the movable positioning clamp, through the spiral distribution design of the crank arm lever and the centering roller, progressive clamping force can be synchronously applied from 12 directions, the axis of a pipeline is automatically centered, the centering precision is high, compared with a traditional manual clamp, manual repeated adjustment is not needed, automatic centering and clamping are achieved, the welding precision is improved, and the production efficiency is improved. The coaxiality of pipeline butt joint is remarkably improved, the weld joint alignment tolerance is reduced, the welding quality is guaranteed, rotation of the driving lead screw is achieved through worm and gear transmission, synchronous belt transmission and composite motion of a lead screw nut, and meanwhile rotary centering of the rotary inner ring and axial feeding of the movable positioning clamp are achieved. According to the integrated design, clamping and butt joint processes of traditional step-by-step operation are combined, the operation efficiency is obviously improved, and the device is particularly suitable for rapid assembly of large-diameter pipelines.

The utility model relates to the technical field of electric vehicle production, and particularly discloses a vehicle frame positioning and welding device which comprises a supporting mechanism, a rotating mechanism used for rotationally supporting a vehicle frame is arranged on the supporting mechanism, and a fixing mechanism used for adjusting and fixing different positions of the vehicle frame is arranged on the rotating mechanism. The rotating mechanism comprises a supporting frame, supporting shafts are oppositely arranged at the two ends of the supporting frame, and a worm gear is fixed to one supporting shaft. Through the arrangement of the adjusting assembly and the clamping assembly of the fixing mechanism, the adjusting assembly adjusts and adapts to the position of the clamping assembly, the fixing positions of different frames can be adjusted and used conveniently, the use range is widened, through the arrangement of the rotating mechanism, a rotating worm drives a worm gear to rotate, and a supporting shaft and a supporting frame are driven to rotate, so that the fixing effect is improved. And then the vehicle frame on the supporting frame is turned over, welding operation can be conveniently conducted on other directions of the vehicle frame, the use convenience is improved, and the production efficiency is improved.

The invention discloses a steel transportation device for bridge engineering construction. The steel transportation device comprises a first base, and a second base and a third support are arranged on the two sides of the first base correspondingly. According to the invention, the handle is rotated to drive the first rotating shaft and the second rotating shaft to rotate, the first rotating shaft and the second rotating shaft drive the first worm and the second worm to rotate, the first worm and the second worm drive the corresponding first worm gear and the second worm gear to rotate, and the first worm gear and the second worm gear drive the corresponding first gear and the second gear to rotate; a first gear and a second gear are meshed with transmission teeth to drive a first telescopic rod and a second telescopic rod to move in the opposite directions, then a second base and a third support can be driven to move in the opposite directions with the first base as the center, and the overall length of the conveying device is adjusted by adjusting the distance between the second base and the third support. And the transportation device can be adjusted according to the length of the steel, so that the steel with different lengths can be transported.

The invention discloses a movable auxiliary tool for dismounting and mounting a motor of a wind turbine generator, and the tool comprises a supporting part which comprises a supporting assembly, an adjusting assembly disposed on the supporting assembly, and a moving assembly disposed on the supporting assembly. The control component comprises a driving assembly arranged on the supporting assembly, a lifting assembly arranged on the supporting assembly and a transmission assembly arranged on the driving assembly. According to the movable auxiliary tool for dismounting and mounting the wind turbine generator motor, a worm drives a worm gear to rotate by controlling a driving motor to operate, so that one second threaded rod rotates, then the two second threaded rods rotate together through mutual cooperation of a chain wheel and a chain, and a lifting block is controlled to move up and down; and after connection is completed, the lifting block is controlled to move upwards, and the limiting assembly can clamp the motor to prevent the motor from shaking.

The utility model relates to the technical field of air conditioners, and discloses a cool storage air conditioner convenient to install, which comprises an air conditioner shell and a base, a protective net is fixedly arranged close to the upper end of one side of the front end face of the air conditioner shell, and a moving mechanism is movably arranged close to the lower end in the air conditioner shell. The moving mechanism comprises four rotating shafts, four first gears, two second gears, two worm gears, two supporting rods and a worm, and a first damping mechanism is arranged at the position, close to the center, of the lower end face of the air conditioner shell. According to the air conditioner lifting device, by rotating a rotating handle, a worm drives two worm wheels to rotate, two supporting rods drive two second gears to rotate, four first gears drive four rotating shafts to move up and down, four universal wheels move out of the interior of an air conditioner shell, an air conditioner is jacked up by the universal wheels, and the four universal wheels can drive the air conditioner to move; and the four universal wheels are moved out, so that the air conditioner shell can be moved through the four universal wheels, and transportation of workers is facilitated.

The utility model discloses a steel structure lifting appliance convenient to assemble and disassemble, and relates to the technical field of lifting equipment, the lifting appliance comprises a main body, a connecting assembly is arranged at the upper end of the main body, a groove is formed in the lower end of the main body, and a moving assembly is arranged in the groove. According to the steel structure hoisting device, an electromagnet is arranged on the steel structure and makes contact with the steel structure, so that the electromagnet firmly attracts the steel structure, shaking in the hoisting process is prevented, meanwhile, the steel structure is further fixed and prevented from falling off, a first motor is started, a worm drives a worm gear to rotate, a second two-way threaded shaft rotates to drive a clamping plate to move towards the middle, and the steel structure is clamped; then a second motor is started, a threaded rod rotates, a positioning plate moves towards the steel structure, due to the action of a slope, the positioning plate moves to the position below the steel structure, so that the steel structure is located in the lifting appliance, the steel structure mounting convenience is improved, and dismounting and mounting can be conveniently conducted at any time.

The invention provides a transmission ratio self-adaptive adjusting mechanism for a lightweight knee joint artificial limb. The transmission ratio self-adaptive adjusting mechanism comprises a rack module, the joint rotating module is arranged on the rack module, is used for driving a knee joint to rotate and comprises a small quadrangular frustum pyramid, a rotating piece and a joint rotating shaft with a spline sleeve; the gear transmission module is arranged on the rack module, is used for driving the joint rotating module and comprises a driving motor, a bevel gear transmission system, a three-stage gear transmission system and a worm and gear transmission assembly, and the driving motor drives a joint rotating shaft to rotate by driving the bevel gear transmission system or the three-stage gear transmission system; the switching module is arranged on the rack module and used for driving the spline sleeve to slide so as to switch the bevel gear transmission system and the three-stage gear transmission system, the switching module comprises a switching motor and a switching module transmission assembly, the spline sleeve is sleeved with the switching module transmission assembly, and the switching module transmission assembly is driven by the switching motor to slide so as to switch the bevel gear transmission system and the three-stage gear transmission system. Therefore, the spline sleeve is driven to slide.

The utility model provides a five-axis workbench. The five-axis workbench solves the problems that an existing five-axis workbench needs to drive a head workpiece to rotate through a worm arranged below the workpiece on a rotating base, the structure is complex, and use is inconvenient. The device comprises a rotating seat and rotary tables which are arranged on the two sides of the rotating seat and drive the rotating seat to rotate, a hollow fixing column is fixedly arranged on the rotating seat, and a rotating disc is movably arranged at the upper end of the fixing column. A motor used for driving the rotating disc to rotate, a speed reducer and a distributor are sequentially arranged in the fixing column from bottom to top, the motor drives the rotating disc to drive the workpiece to rotate, the number of parts needed for driving the workpiece to rotate is greatly reduced, and the structure is simple.

The utility model relates to the technical field of air compressors, in particular to an improved air compressor which comprises a pressure pump and supports, the two supports are fixedly connected to the lower portion of the pressure pump, stabilizing mechanisms are arranged in the supports, a top plate is fixedly connected to the upper portion of the pressure pump, and a control box is fixedly connected to the upper surface of the top plate. A first conveying pipe is arranged above the control box, and a connecting mechanism is arranged on the outer wall of the connecting cylinder. Through cooperation of a worm, a rotating wheel, a worm gear, a first supporting rod, a second supporting rod, a third supporting rod and a cushion block, the rotating wheel is rotated, the rotating wheel drives the worm to rotate, the worm drives the worm gear to rotate, the worm gear drives the first supporting rod to rotate, the first supporting rod drives the second supporting rod to move, the second supporting rod regularly moves under the action of the third supporting rod, and the second supporting rod drives the cushion block to move. The cushion blocks make contact with the ground to support the wheels, stability of the air compressor is achieved, operation is easy, and stability of the position of the air compressor can be achieved conveniently.

The invention discloses a suspension type porcelain insulator detection method and equipment for detection of the method, and relates to the technical field of insulator detection, the suspension type porcelain insulator detection equipment comprises a mounting table, one end of a positioning block is provided with a distance adjusting traction piece connected with a movable guide block, and the other end of a tension sensor is provided with a bending detection piece connected with the distance adjusting traction piece. According to the suspension type porcelain insulator bending detection device, the bending detection part is arranged, the telescopic air cylinder is started, the positioning rod swings relative to the positioning block through extension of the inclined connecting rod, so that the suspension type porcelain insulator is bent, and when the telescopic air cylinder contracts, an aqueous solution in a second piston barrel can be extracted through cooperation of a first piston barrel and a first piston rod; the worm drives the worm gear to rotate, so that the mounting base can drive the suspension type porcelain insulator to rotate, the suspension type porcelain insulator is bent in different directions through repeated stretching and retracting of the telescopic air cylinder, and the accuracy of detection data is improved.