280results about How to "Accurate transmission ratio" patented technology

The invention discloses a novel transplanting machine automatic feeding device, which consists of a seedling disc step displacement device, a seedling taking device, a seedling jacking device, a pot seedling conveying device and a rotary seedling collecting device. The novel transplanting machine automatic feeding device is mainly used for realizing the mechanical fully automatic seedling taking in the agricultural transplanting process; the labor requirements on the transplanting are reduced; the planting quality is improved; the yield and income increase of farmers are promoted. In the work process of the device, the seedling jacking device jacks out pot seedlings in the seedling taking position, then, the whole line pot seedling clamping is performed by the seedling taking device from the seedling taking position; then, the pot seedling conveying device rotates for 90 degrees to reach the seedling putting position and puts the whole row of pot seedlings into a seedling collecting hopper of the rotary seedling collecting device; in addition, under the operation condition of the rotary seedling collecting device, the pot seedlings are separated into two lines to be put into a planting device one by one; finally, the pit disc seedlings are planted into the soil through the planting device.

The invention belongs to the technical field of electromagnetic clutches, and relates to an end tooth electromagnetic clutch. The end-tooth electromagnetic clutch includes a driving part and a driven part. The clutch claw, armature flange, and spring are composed of an end gear ring, a magnetic isolation ring, and a core shaft to assemble an end gear shaft, which is set in two 6807 bearings, axially positioned by a retaining ring, and assembled in the inner hole of the yoke. The coil wrapped by insulating paper is placed in the coil groove of the yoke; the armature flange is riveted in the end tooth clutch claw with a hollow pin, and the spring is set on the screw. The end-tooth electromagnetic clutch adopts end-tooth gear connection to transmit power. It has the advantages of simple structure, convenient installation and maintenance, and high transmission ratio precision, which effectively ensures the fast and accurate conversion of mechanical energy in industrial production and the transmission of torque.

The invention discloses an efficient space-use type damper of an end portion straight brace secondary displacement amplification device. The efficient space-use type damper of the end portion straightbrace secondary displacement amplification device comprises a vertical type moving displacement support, a T-shaped overhanging positioning bracket, a T-shaped connecting plate, a displacement amplification rod, an input rod with a rack, a duplicate gear, an output rod with a rack, a damper connecting piece, an input end guide gear, a damper device, a damper fixing support and the like. The efficient space-use type damper of the end portion straight brace secondary displacement amplification device performs first amplification on the relative displacement between layers of a building throughthe displacement amplification rod when the deformation of the building structure is small or slow, then the displacement of the first amplification is subjected to second amplification through the duplicate gear, two-time amplification is performed, so that the damper generates greater relative displacement, the damper generates greater damping force, and the better shock absorption effect is achieved. At the same time, the efficient space-use type damper has the characteristics of simple structure, considerable cost, convenient installation, convenient operation, flexible layout, firm and durable and the like, and has broad prospects of development and application.

A continuously variable transmission including a driving pulley, a driven pulley, an endless dry-type belt wound around both pulleys, a tension-adjusting device for pressing the slack side of the belt to generate belt tension, stroke mechanisms provided on both pulleys for axially shifting the movable sheaves, a ratio-changing motor, and a gear mechanism for transmitting the rotational force generated by the motor to both stroke mechanisms in such a way that the movable sheaves of both pulleys can be shifted synchronously and axially oppositely in relation to the fixed sheaves. With this arrangement, the belt is prevented from slipping, the transmission ratio can be controlled precisely and stably, and the shift-response of this transmission can be improved. The motor can be reduced both in its size and its consumption of electric power.

The invention provides sea cucumber processing equipment, and belongs to the technical field of sea cucumber processing. According to the sea cucumber processing equipment, the equipment comprises a conveying mechanism, the conveying mechanism comprises a left end part, a middle part and a right end part, a discharging mechanism is arranged at the left end part of the conveying mechanism, a viscera processing mechanism is arranged at the right end part of the conveying mechanism, the viscera processing mechanism comprises a pressing assembly and a cutting assembly, and the cutting assembly isarranged on the pressing assembly. The sea cucumber processing device has the beneficial effects that sea cucumbers are arranged on the conveying belt in an array mode, the belly of each sea cucumbercan be conveniently sectioned in a subsequent viscera processing mechanism, the cleaning assembly is used for removing viscera and silt in the viscera, and meanwhile the cleaning assembly is further used for precooking the sea cucumbers.

The invention discloses a composite shape correction method for the tooth contour of a cycloidal gear of an RV reducer. The method comprises the following steps of 1, determining the tooth contour scope of a work section of the cycloidal gear; 2, according to the corner shape correction mode, determining a tooth contour curve of the work section of the cycloidal gear out of the tooth contour scope, obtained in step 1, of the work section of the cycloidal gear; 3, determining tooth contour curves of a tooth top section and a tooth root section of the cycloidal gear; and 4, according to a tooth contour curve equation, obtained in step 2 and step 3, of the work section, the tooth top section and the tooth root section of the cycloidal gear and a region corresponding to the tooth contour curve equation, obtaining a tooth contour curve of the cycloidal gear obtained after composite shape correction based on MATLAB. The composite shape correction method has the beneficial effects that carrying capacity of the RV reducer is increased, and transmission precision of the RV reducer is improved.

A belt-type continuously variable transmission that is able, using a simple structure, to accommodate size reduction and to accurately determine an actual transmission ratio. A belt-type continuously variable transmission includes a measurement surface formed on an outer circumferential end of a movable sheave, and a displacement sensor provided isolatedly from the outer circumferential end for measuring the distance between the measurement surface and the displacement sensor. The measurement surface is formed such that the distance H between the measurement surface and the displacement sensor is changed as the movable sheave moves in the axial direction.

The present invention relates to a self-reconstructed robot capable of utilizing all geared driving mechanism to drive six rotary faces of module. Said invention includes box body, gear group, driving shaft, clutch device, motor and joint face device. Said invention also provides their connection mode and working principle of said robot.

The invention discloses a biological tissue dehydration device based on chain transmission and a dehydration method thereof. The biological tissue dehydration device comprises a machine frame and a reagent cylinder arranged in the machine frame, wherein horizontal supporting wheels are arranged under the machine frame, a horizontal chain is wound on the horizontal supporting wheels, the horizontalchain is connected with a horizontal driving wheel, a horizontal linear bearing is fixed with the horizontal chain, the horizontal linear bearing is arranged on a horizontal lower guiding rail in a penetrating mode, the horizontal lower guiding rail is fixed with the machine frame, the horizontal linear bearing is connected with a lifting module, an installation hanging basket is arranged on thelifting module, and the hanging basket is used for accommodating biological tissue samples. According to the biological tissue dehydration method based on the chain transmission disclosed by the invention, retention time of the hanging basket in the reagent cylinder is inversely proportional to an alcohol concentration, a product between the retention time of the hanging basket and the alcohol concentration is a fixed constant value, and the retention time of the hanging basket can be adjusted according to the alcohol concentration in the reagent cylinder. By means of the biological tissue dehydration device based on the chain transmission and the dehydration method thereof disclosed by the invention, a biological tissue dehydration technology efficiency is improved, a biological tissue dehydration efficiency is high, and transmission accuracy is high.

The invention discloses a novel plate shearer based on an optimized crank-rocker mechanism. The novel plate shearer based on the optimized crank-rocker mechanism comprises a main shaft of the plate shearer, an upper knife rest and a plate shearer wall plate; the novel plate shearer based on the optimized crank-rocker mechanism further comprises an actuating device, a transmission device, and a blade gap adjusting mechanism; and the actuating device comprises a switched reluctance speed regulation motor and a transmission shaft, the switched reluctance speed regulation motor is connected with the transmission shaft, the transmission device is connected with the actuating device, and the blade gap adjusting mechanism is connected with the upper knife rest. The novel plate shearer based on the optimized crank-rocker mechanism can accurately adjust the blade gap, namely, can continuously adjust the shear angle so as to guarantee the accuracy of processing; and meanwhile enables the actuating device of the plate shearer to achieve stepping speed regulation so that the shearing efficiency is improved. Besides, the transmission mode of the novel plate shearer based on the optimized crank-rocker mechanism is stable, the transmission ratio is accurate, the working is reliable, the working efficiency is high, the service life is long, and the applicable ranges of power, speed and size are wide.

The invention discloses a mixing device used for a hematology analyzer. The mixing device comprises a mounting rack, a first fixing base, a second fixing base, a motor, a pinion, a big gear, a fixing body, a supporting body and a sample fixing rack, wherein the first fixing base is arranged at one side of the mounting rack; a fixing body bearing is embedded into the first fixing base; a fixing body is mounted on the inner ring of the fixing body bearing; the big gear is arranged at one end of the fixing body in a sleeving mode; the pinion is arranged at one side of the big gear; one end of the pinion is connected with the motor; the sample fixing rack is mounted on the fixing body; one end of the sample fixing rack is mounted at one end of the supporting body; the supporting body is mounted in the supporting body bearing; the supporting body bearing is embedded into the second fixing base. The mixing device is compact in structure, wide in range of application of power and shake-up speed, capable of carrying out shake-up while mounting more than 10 samples once and improving the mixing efficiency, accurate in transmission ratio, high in transmission efficiency, capable of controlling a sample to swing by any angle, and capable of sufficiently shaking up.

The invention discloses a hull breaking machine based on pretreated walnuts, and relates to the field of walnut deep processing equipment. The hull breaking machine comprises a rack, an impeller feeding device and an opposite roller extrusion device; the impeller feeding device conducts feeding through an impeller to enable the walnuts to fall into the opposite roller extrusion device orderly, sothat the feeding efficiency is ensured; rollers of the opposite roller extrusion device are structurally optimized, V-shaped annular grooves in the rollers of the opposite roller extrusion device areformed alternately with roller sections to avoid mutual interference of the walnuts and improve the hull breaking efficiency, meanwhile one of the rollers is fixedly arranged, and the other roller isadjustable so as to adapt to hull breaking of the walnuts with different sizes and increase the kernel exposure rate; the impeller feeding device and the opposite roller extrusion device are both driven in a chain transmission mode, the driving speed of the impeller feeding device and the driving speed of the opposite roller extrusion device are matched to enable the materials to be smooth, the work continuity of the hull breaking machine is ensured, and the efficiency is improved; the outer surfaces of the rollers are wrapped with a PVC belt, jumping of the walnuts during falling is reduced,the extrusion efficiency is improved, meanwhile the adaptability of the walnuts in an extrusion work area is improved through the PVC belt, and the high kernel exposure rate is achieved.

The invention relates to a communication-in-moving satellite antenna with a low profile. The communication-in-moving satellite antenna comprises a receiving part and an emission part which are same instructure, wherein the receiving part comprises an upper-layer phase modulation surface, an intermediate-layer phase modulation surface, a lower-layer feeding source surface and a rotation mechanismwhich are sequentially arranged from top to bottom, the rotation mechanism comprises an upper-layer large ring gear, an intermediate-layer large ring gear, a lower-layer large ring gear and a rotationdriving device, and the rotation driving device drives the lower-layer large ring gear, the intermediate-layer large ring gear and the upper-layer large ring gear to rotate so as to achieve rotationof the lower-layer feeding source surface, the intermediate-layer phase modulation surface and the upper-layer phase modulation surface. The beam pitching angle of the satellite antenna is adjusted according to angle difference between the upper-layer phase modulation surface and the intermediate-layer phase modulation surface which are driven by the upper-layer large ring gear and the intermediate-layer large ring gear to rotate, the upper-layer phase modulation surface and the lower-layer phase modulation surface simultaneously rotate, the beam directional angle of the antenna is adjusted according to a rotation angle, the lower-layer feeding source surface is driven to rotate by the lower-layer large ring gear so as to adjust a polarization angle of the satellite antenna, polarization adjustment is achieved, and a main beam of the antenna points to a satellite all the way during the moving process on a vehicle, an airplane and a boat and is maintained within certain accuracy.

The invention discloses a cylindrical coordinate type automatic feeding and discharge mechanical hand. The cylindrical coordinate type automatic feeding and discharge mechanical hand comprises a sucking disc type mechanical arm mechanism, a horizontal motion mechanism which drives the mechanical hand to horizontally move, a rotating mechanism which drives the mechanical hand to rotate, a lifting mechanism which drives the mechanical hand to rise and fall, and a box body used for placing the mechanical hand. According to the cylindrical coordinate type automatic feeding and discharge mechanicalhand, an alternating current servo motor is adopted as a power source, horizontal motion and rising motion of the mechanical hand are achieved through a ball screw nut transmission mechanism, and rotating motion of the mechanical hand is achieved through a gear pair composed of a driving gear and a rotary disc bearing; the lifting mechanism adopts a synchronous belt mechanism and a screw nut mechanism and has an accurate transmission rate, and good working precision of the mechanical hand can be maintained; the sucking disc type mechanical arm mechanism can accurately and stably adsorb plateworkpieces and transfer the workpieces to be processed through cooperation of lifting motion, rotating motion and horizontal motion; and operation is simple, and labor intensity of workers is greatlyreduced.

The invention discloses a one-way damping hinge device, which comprises an upper connecting support, a lower connecting support and a hinge shaft, wherein the hinge shaft is fixedly connected with theupper connecting support; the hinge shaft is rotatably connected with the lower connecting support; a gear rack transmission mechanism, a damper mounting frame and a U-shaped transmission curved rodwhich is fixedly connected with an input rod of a damper are arranged on the lower connecting support; the gear rack transmission mechanism comprises a driving gear and a driven gear rack which are meshed with each other; the driving gear is fixedly connected with the hinge shaft; the driven gear rack is fixedly connected with the U-shaped transmission curved rod; and rollers are arranged betweenthe damper mounting frame and the U-shaped transmission curved rod. In addition, the invention also provides a method for controlling passive vibration of a structure by using the one-way damping hinge device. According to the one-way damping hinge device, the gear transmission principle is utilized, so that the capability of the building structure to resist vibration load can be effectively improved, the vibration control efficiency of the building structure is improved, and a new and effective method is provided for the vibration control of the structure in the field of civil engineering.

The invention provides a fluid conveying pipeline surface coating removing mechanical arm and belongs to the technical field of pipeline removing instruments. The mechanical arm comprises a support, chain tightness degree adjusting devices, a transverse adjusting device, execution mechanisms, pressure adjusting devices and a traveling mechanism. The transverse adjusting device is arranged on a top plate of the support. The two execution mechanisms are symmetrically connected to the two ends of the transverse adjusting device. The pressure adjusting devices are connected to the outer sides of the two execution mechanisms. The chain tightness degree adjusting devices are arranged on strip-shaped grooves in side plates of the support. The traveling mechanism is connected to the side plates of the support. The mechanical arm can adapt to needs of different pipelines under different environment conditions; moreover, chain mass is low, the length can be decided freely according to the different use conditions, and workers can carry out disassembling and assembling conveniently; balancing performance of the whole mechanical arm is good, working efficiency is high, and the working range is expanded; synchronous belts are adopted for driving steel brushes to rotate, the transmission ratio is accurate, acting force on shafts is small, and the mechanical arm is compact in structure, good in oil and abrasion resistance, and good in aging-resistant performance.

The invention discloses an independent rotary nozzle type compact gluing head capable of being detected online and a gluing method thereof. An existing frame gluing machine realizes change of a nozzle angle by rotating a gluing valve integrally, and is complex in structure and large in power consumption. The gluing head comprises a glue supply assembly of the gluing valve, a nozzle rotating mechanism and an online bilateral detection device, wherein a rotating air cylinder of the nozzle rotating mechanism drives a flat needle nozzle to rotate and the flat needle nozzle rotates directly to glue photovoltaic frames arranged inside and outside with different orientations by a single gluing head, such that the power consumption is reduced. The online bilateral detection detects whether the flat needle nozzle is aligned with a gluing groove of a to-be-glued frame or not online and whether the height of the gluing groove meets a gluing demand or not, the glue surface height after gluing changes, such that it is ensured that the system finds the quality problem of the gluing groove in time to replace the gluing frame as well as finds and corrects a gluing error caused by deviation of the gesture of the flat needle nozzle, unsmooth glue discharge or too quick glue discharge, thereby improving the gluing quality to the maximum extent.

The invention belongs to the field of underwater robots, in particular to a steerable type propulsion system for an underwater robot. The propulsion system for the underwater robot comprises a steering cabin, a steering shaft, a transmission mechanism, a drive mechanism and an electronic unit assembly, wherein the steering shaft, the transmission mechanism, the drive mechanism and the electronic unit assembly are installed in the steering cabin, the drive mechanism is connected with the steering shaft through the transmission mechanism and drives the steering shaft to rotate, two ends of the steering shaft penetrate through two sides of the steering cabin and respectively provided with a propeller, the two propellers simultaneously rotate along with the steering shaft, the drive mechanism and the two propellers are respectively connected with the electronic unit assembly and driven by the electronic unit assembly, and therefore a plurality of degrees of freedom of the propulsion system can be achieved. The propulsion system for the underwater robot has the advantages of being simple and compact in structure, small in size, light in weight, low in cost, high in reliability, strong in controllability, complete in functions, capable of being easily installed on the underwater robot and the like.

The invention discloses a screwing type pineapple picking device. The pineapple picking device comprises a swinging motor, a clamping mechanism and a picking head, the picking head comprises a base and an arc-shaped slideway, the clamping mechanism comprises a double-sided rack, the tail end of the slideway is provided with a linear sliding chute perpendicular to the slideway, the base is arrangedin the slideway, the double-sided rack is arranged in the sliding chute, cranks, connecting rods and the double-sided rack jointly form a crank sliding block mechanism, the clamping mechanism comprises a pair of clamps, the two sides of the double-sided rack mesh with gears, the gears mesh with gear structures on gear rods, each gear rod is hinged to the rear end of one clamp correspondingly, themiddle rear parts of the clamps are hinged to one ends of swing rods, the other ends of the swing rods are hinged to the base, and the gear rods, the swing rods and the clamps form two double-rockermechanisms. The pineapple picking device has the characteristics of being capable of achieving the clamping and screwing picking functions at the same time by adopting one driving device, efficient, energy-saving, accurate in picking and small in damage to branches and leaves.

The invention discloses a robot for precise assembling. The robot for precise assembling comprises a base, a rotary table, a large arm, a small arm, a wrist joint, a front end rotational joint and a pneumatic clamping device. The rotary table is rotationally installed on the base. One end of the large arm is hinged to the rotary table, and the other end of the large arm is hinged to one end of the small arm. The other end of the small arm is hinged to one end of the wrist joint, and the front end rotational joint is rotationally installed at the other end of the wrist joint. The pneumatic clamping device is installed at the outer end of the front end rotational joint. A rotary table ball screw driving mechanism used for driving the rotary table to rotate is installed on the base, a large arm ball screw driving mechanism used for driving the large arm to rotate is installed on the rotary table, a small arm ball screw driving mechanism used for driving the small arm to rotate is installed on the large arm, a wrist joint driving mechanism used for driving the wrist joint to rotate is installed on the small arm, and a front end joint driving mechanism used for driving the front end rotational joint to rotate is installed on the wrist joint. The robot for precise assembling is stable in transmission, high in positioning precision and production efficiency, long in service life and wide in application range.

The invention discloses a horizontal single-power two-way driving concrete mixing device, which relates to the technical field of construction engineering and comprises a mixing tank, an upper end of the mixing tank is provided with a feed port, and a lower end of the mixing tank is provided with a discharge port, and the mixing tank is arranged along the ground Inclined setting, the bottom of the mixing tank is provided with a fixed support base, and also includes a motor, a transmission shaft, several helical blades around the front section of the transmission shaft and several scraper blades around the rear section of the transmission shaft, and the end of the front section of the transmission shaft Through the inner wall of the front end of the mixing tank through the bearing seat, it is connected with the output shaft of the motor, and the end of the rear section of the transmission shaft is fixed on the inner wall of the rear end of the mixing tank through the bearing seat. The middle end of the transmission shaft is provided with a sorting drive mechanism. The building aggregate crushed by two helical blades is sorted and screened by the sorting drive mechanism to the rear section of the drive shaft, and mixed with cement evenly, and then sent out through the discharge port. By implementing the technical proposal, it is possible to effectively avoid the unevenly broken aggregates from being directly mixed with cement in the prior art.

The invention discloses a gear transmission mechanism of an electrode coping and cap replacing all-in-one machine. The gear transmission mechanism comprises a drive straight gear, a cap dismounting transmission straight gear, an electrode coping transmission straight gear, a worm shaft, a worm wheel, a transmission bevel gear and an electrode coping bevel gear, wherein the cap dismounting transmission straight gear and the electrode coping transmission straight gear are meshed with the drive straight gear, the worm shaft and the worm wheel are connected with the cap dismounting transmission straight gear, driven by the cap dismounting transmission straight gear and meshed with each other, and the transmission bevel gear and the electrode coping bevel gear are connected with the electrode coping transmission straight gear and driven by the electrode coping transmission straight gear. According to the gear transmission mechanism of the electrode coping and cap replacing all-in-one machine, the cap dismounting transmission straight gear and the electrode coping transmission straight gear are arranged on the two sides of the drive straight gear respectively to drive the worm shaft and the worm wheel on the two sides, the transmission bevel gear and the electrode coping bevel gear, wherein the worm shaft and the worm wheel are meshed with each other. The precise transmission ratio of the worm wheel and the electrode coping bevel gear is achieved through transmission mechanism which is simple and compact in structure, reliable and stable running can be guaranteed, and the gear transmission mechanism is applied to field of the mechanical transmission structure.

The invention discloses a sixteen-speed automatic transmission based on single-planetary gear train modular design. The sixteen-speed automatic transmission based on single-planetary gear train modular design is characterized by mainly comprising a motor, a planetary gear train, an ordinary gear train, a clutch, brakes, a duplicate gear and a shell, wherein the first brake, the second brake, the third brake, the fourth brake, and the fifth brake are in a parallel type structure, and the conversion of respective gear trains is realized through the respective engagement. The sixteen-speed automatic transmission based on the single-planetary gear train modular design has 16 front speeds and 16 reverse gears, has flexible transmission ratio design, not only can be used for improving the fuel economy of a car, but also can be applied to gearboxes of trucks and heavy trucks, provides a new scheme reference for the structures of existing large-sized vehicle power transmission systems, and hasrelatively high use value and good application prospect.

The invention discloses a processing and crushing device for traditional Chinese medicine, which comprises a base, a casing, a rotating device and a crushing device. A rotating device is arranged on one side of the casing, a bearing is arranged on one side of the upper part of the base, and a bearing is arranged on one side of the bearing. There is a connecting rod, the medicine bowl is fixed on the upper side of the connecting rod, and several grooves are uniformly arranged on the side wall of the medicine bowl, a turntable is arranged on one side of the medicine bowl, a lever is arranged on the turntable, and a transmission shaft I is arranged on the side of the turntable ;There is a pulley Ⅰ on the transmission shaft Ⅰ, a pulley Ⅱ is provided on one side of the pulley Ⅰ, the pulley Ⅰ and the pulley Ⅱ are connected by a belt, the pulley Ⅱ is installed on the transmission shaft Ⅱ, and a cam is provided at one end of the transmission shaft Ⅱ , the lower side of the cam is provided with a baffle, and the lower side of the baffle is provided with a pestle for pounding medicine; the upper end of the pestle for pounding medicine is provided with a spring. The invention utilizes a pounding device to grind and smash the traditional Chinese medicine in the medicine bowl, which reduces the labor intensity of the person who pours the medicine and improves the work efficiency; and a rotating device is provided to realize the rotation of the medicine bowl, which enhances the smashing of the traditional Chinese medicine Effect.

The invention discloses an alternate treating device of decontaminating filter screens for an open channel, and relates to a decontaminating device. The filter screens are respectively embedded in the upper part and the lower part of a frame, a power motor I is arranged at the top of the frame, the power motor I is in transmission cooperation with chain transmission mechanisms on outer walls on both sides of the frame, and the chain transmission mechanisms drive a sliding beam to move in slide grooves in both sides of the frame; suspension hooks and pushing hands are fixed below the sliding beam, the suspension hooks grasp lifting handles at the upper ends of filter screens, and the pushing hands are propped against the lifting handles; a funnel is hinged to the sliding beam through a suspension arm and positioned on one side of the frame, and a triggering lock device is arranged at the hinged position, and cooperated with upper limits and lower limits, which are arranged at edges on both sides of the frame; a receiving tray is arranged below the funnel, one end of the receiving tray is hinged to supporting legs of the receiving tray, and the other end of the receiving tray is cooperated with the funnel through a pulley mechanism. The alternate treating device disclosed by the invention has the advantages that the design is artful, the cost is low, the alternate treating device is easy to mount, the electric consumption is reduced, the cost is lowered, the efficiency is high, the service life is long, and problems are unlikely to occur.

The invention discloses a transverse transmission device of a weft paving trolley, which comprises a transverse supporting base matched with the cross beam of a tricot machine in a rolling or sliding manner and a timing belt pulley arranged in the transverse supporting base. A drive device is fixedly connected to the transverse supporting base; the timing belt pulley is driven to rotate by the drive device; a synchronous transmission belt is arranged at the upper part of a guide rail in the length direction, and the gear-shaped surface of the synchronous transmission belt and the upper surface of the guide rail are oppositely arranged, and both ends of the synchronous transmission belt pass through the two transverse sides of the transverse supporting base respectively and are fixedly connected with the guide rail; and the synchronous transmission belt positioned in the transverse supporting base is meshed and matched with the timing belt pulley. Synchronous belt guide pulleys are symmetrically arranged on two transverse sides of the timing belt pulley; and a wrapping angle of the synchronous transmission belt formed in the connecting position of the synchronous belt guide pulleys and the synchronous transmission belt is smaller than or equal to 90 degrees. The invention has the advantages of high driving accuracy, damage resistance, long service life and low noise, and has good commercial prospect.