78results about How to "High lifting precision" patented technology

The invention discloses a lifting platform, comprising a supporting frame, a transmission mechanism, a sliding mechanism and a lifting bracket. The transmission mechanism comprises a first transmission assembly, a second transmission assembly, a fixed seat and a transmission shaft, wherein the fixed seat is arranged on the supporting frame, and the transmission shaft penetrates through the fixed seat and the two ends of the transmission shaft are respectively and fixedly connected with the first and second transmission assemblies; the first transmission assembly comprises a handle, a worm and a worm wheel, wherein the handle penetrates through the supporting frame and is pivoted with the supporting frame, the worm is fixedly connected with one end of the handle, and the worm wheel is fixedly connected with one end of the transmission shaft and is engaged with the worm; the second transmission assembly comprises a rack and a gear, wherein the rack is vertically arranged on the lifting bracket, and the gear is fixedly connected with the other end of the transmission shaft and is engaged with the rack; and the sliding mechanism comprises a guide rail and a sliding block, wherein the guide rail is arranged on the supporting frame and is parallel with the rack, and the sliding block is arranged on the lifting bracket and is clamped with the guide rail in a sliding manner. The lifting platform has the advantages of steady, safe and reliable lifting, high lifting precision, large stroke, no noise when in use, no pollution of environment, simple structure and compactness.

The invention relates to the field of railway roadbed maintenance, in particular to an expansive pouring device and a method for governing railway roadbed sedimentation and deformation. The expansive pouring device comprises a pouring pile core (1), a containing bag (2) and a slip casting pipe (11), wherein the slip casting pipe (11) is connected on the upper end of the pouring pile core (1) through a sleeved nut (4), the containing bag (2) sleeves the lower end of the pouring pile core (1) through a contracting sealing ring (3), and an expansive ring (12) is arranged on the contact segment of the slip casting pipe (11) and a roadbed (10). The expansive pouring device uses a frame structure supporting principle and a pile type structure principle, expansive foam, slip casting equipment and monitoring equipment are poured by matching with high pressure, the damaged roadbed can be accurately lifted, the accurate degree can realize plus-minus 1mm, the material using rate is high, the government of a large-scale cavity or an underground dark river is also effective, the damage to the roadbed structure is small, and the construction is rapid and convenient.

The invention discloses a movable type reverse self-locking lift platform. The platform comprises a transmission mechanism, a lift mechanism and a platform framework. The platform framework comprises an upper platform and a lower platform; the transmission mechanism comprises a direct current motor, a turbine reducer, four sets of driving piece stand columns, a driving piece installation plate, two sets of synchronous wheel driving wheels, two sets of synchronous belts, two sets of synchronous wheel driven wheels, two sets of ball screws, two sets of ball screw slide blocks, two sets of ball screw slide block installation seats, four sets of linear guide rail slide saddles and four sets of linear guide rails; and the lift mechanism comprises four sets of lift trestle combinations. According to the movable type reverse self-locking lift platform, the turbine reducer is arranged in the transmission mechanism, so that the lift platform can be reversely self-locked, and the upper platform is guaranteed to be locked firmly; the four sets of lift trestle combinations are driven by the same motor, so that movements of the four sets of lift trestle combinations are totally identical, and stable lift of the platform can be achieved; and a position sensor is configured on the direct current motor, and accordingly, the lift height of the platform can be accurately controlled.

The present invention relates to a fingerprint chip electrical performance testing device. The fingerprint chip electrical performance testing device includes a testing system, a feeding system, and amaterial collection system; the feeding system includes a tray separating and conveying device, a plurality of tray positioning devices, a fingerprint chip number identification device, and a material collection system, wherein the tray separating and conveying device is provided with two tray delivering conveyor belts, the plurality of tray positioning devices are arranged between the two tray delivering conveyor belts, the fingerprint chip number identification device is provided with a machine vision system located above the first tray positioning device, the material collection system isprovided with an adsorption mechanism located above the last tray positioning device; and the test system includes two test devices and material taking devices, wherein the two test devices are arranged symmetrically outside one side of the tray separating and conveying device, and the material taking devices are located at the test devices and adsorption devices located above the other tray positioning devices. The fingerprint chip electrical performance testing device can automatically feed, transfer and convey fingerprint chips and has high test efficiency.

The invention discloses a white paint spraying machine, with high lifting efficiency, for a trunk. The white paint spraying machine comprises a motor vehicle. A working arm is arranged at the front part of the motor vehicle. A spraying barrel assembly is arranged at the front end of the working arm, and comprises a left half barrel and a right half barrel, which can be opened or closed. When the left half barrel and the right half barrel are closed, the trunk is clamped between the left half barrel and the right half barrel to be sprayed with paint. A lifting mechanism is arranged between the working arm and the front part of the motor vehicle, and comprises an outer lifting cylinder, an inner lifting cylinder and a lifting cylinder. One of the outer lifting cylinder and the inner lifting cylinder is connected with the front part of the motor vehicle, and the other one is connected with the working arm. The lifting cylinder drives the outer lifting cylinder and the inner lifting cylinder to relatively move in the vertical direction. The white paint spraying machine has the advantage that the efficiency is higher when the working arm ascends or descends.

The invention relates to the field of automobile part detection devices, and provides an angle position test tool of a clock spring installation board 9 and an ignition switch installation frame 8. The angle position test tool of the clock spring installation board and the ignition switch installation frame comprises a bottom board, a right clamping block, a right clamping block drive device, a left clamping block, a lifting device, a spline section and installation hole detection assembly, a locating groove and a locating block, wherein the right clamping block is connected with the bottom board through a slide way and is provided with a right clamping groove and a square hole locating head; the left clamping block is provided with a left clamping groove and is fixedly connected with the bottom board; the spline section and installation hole detection assembly is connected with the lifting device; the locating groove is matched with the ignition switch installation frame in width; the locating block is fixedly connected with the bottom board. The angle position test tool of the clock spring installation board and the ignition switch installation frame is small in detection error and high in detection efficiency.

The invention relates to a bale plucker, and specifically relates to an induction type bale plucker. The bale plucker comprises a base, a spindle, a rotating arm, and a tong; the spindle is installed in the middle of the base; the top end of the spindle is fixedly connected with the rotating arm; the bottom end of the rotating arm is fixed with the tong; the rotating arm is fixedly connected with the spindle via a self-locking lead screw lifter; a lateral end of the tong is fixed with a photoelectric inductor; the bottom end of the rotating arm is fixed with a concave groove; a ball bearing is installed inside the concave groove; a lateral edge of the base is encircled inside the concave groove and sticks to the ball bearing; the bale plucker is able to adjust the height of the tong by inducing the plucked amount; the lifting precision is higher; the cost is saved; and the effect is increased.

The invention discloses an independent guide mechanism used for a road-rail motor tractor. The independent guide mechanism used for the road-rail motor tractor comprises a U-type rack, a guiding device, a hydraulic oil cylinder assembly and a guiding wheel assembly, wherein the guiding device and the hydraulic oil cylinder assembly are arranged in a triangle shape, the upper end of the guiding device is installed on the U-type rack, one end of the hydraulic oil cylinder assembly is connected to the U-type rack, the other end of the hydraulic oil cylinder assembly is connected to the guiding device, and the guiding wheel assembly is arranged on the lower portion of the guiding device. The independent guide mechanism is simple in whole structure, capable of bearing large alternating torque, high in lifting accuracy and convenient to maintain, and effectively overcomes the defects that an existing guide mechanism of the road-rail motor tractor is prone to being damaged, cumbersome in structure and not accurate enough in lifting distance.

The invention discloses a submersible step racking mechanism of a vertical racking mechanism, which comprises an electric step motor, a shaft joint, a supporting board, a slide rail frame, a ball screw, a feed screw nut, an elevating slide block, a slide rail, a fine tuning hand wheel, a connecting board and a racking head, two ends of the ball screw are arranged on the slide rail frame through a bearing, the upper end of the ball screw is connected with the electric step motor directly, and the electric step motor drives the ball screw to rotate so as to drive the racking head to move upwards and downwards, thus satisfying the submerged racking action requirement of the racking head. The submersible step racking mechanism of the vertical racking mechanism is characterized in that original complex gear shift mechanisms are replaced by the electric step motor which has compact structure and high precision of axial movement.

The invention discloses a synchronous lifting device and a material conveying device. A driving mechanism is adopted for being matched with a linkage mechanism for acting, a lifting material frame is synchronously lifted wholly along with the driving mechanism when the driving mechanism runs, under the condition that the cost is reduced, synchronous running stability and reliability are guaranteed, and the motion program is simple; and in addition, the mechanism accuracy has a certain fault tolerance, and the service life of elements is greatly prolonged. A balance weight mechanism is arranged, upward pull force is applied to the lifting material frame when materials are lifted, the weight of the lifting material frame can be offset, the load of the driving mechanism is reduced, and energy consumption is reduced.

The present application relates to a precise lifting method and a lifting and reinforcing structure for a plant equipment foundation. The method includes the construction steps of: forming a curtain wall: drilling downwards at two sides of the plant equipment to form curtain holes and grouting the curtain holes, in which the grouting areas overlap each other to form two parallel curtain walls; forming a reinforcing body: drilling grouting holes inclining downwards, grouting the grouting holes to form the reinforcing body attached to a lower surface of a baseplate of the plant equipment foundation among a bottom of the baseplate and two curtain walls; and lifting: drilling lifting holes obliquely downwards to below the bottom of the reinforcing body and between two curtain walls; and conducting pressure grouting to the bottom of the lifting holes and then backward grouting upwards layer by layer.

A hydraulic jack comprises a driving device, a base and a cylinder body which is movably connected with the base. The cylinder body is internally provided with a main hoisting groove and an auxiliary hoisting groove, the bottom of the main hoisting groove and the bottom of the auxiliary hoisting groove are communicated mutually, and the main hoisting groove and auxiliary hoisting groove are provided with a main hoisting block and an auxiliary hoisting block respectively, wherein the main hoisting block and the auxiliary hoisting block can ascend and descend along the inner wall of the main hoisting groove and the inner wall of the auxiliary hoisting groove respectively. The sealed space formed by the main hoisting block, the auxiliary hoisting block, the main hoisting groove and the auxiliary hoisting groove is injected with hydraulic oil and pressure-bearing grounders used for enhancing the pressure-bearing performance of the hydraulic oil. The driving device comprises two driving motors and racks, wherein the two driving motors are respectively provided with a driving gear, the racks are arranged on the auxiliary hoisting block and matched with the driving gears, and the rotation directions of the two driving motors are opposite to drive the driving gears to lift the auxiliary hoisting groove. Oil leaking and gas leaking are avoided when the hydraulic jack is used, the safety performance and the stability of the jack are improved, the occurrence that the using of the jack is affected when the hydraulic oil is polluted can be prevented, and the lifting speed and precision of the jack can be improved.

The invention discloses a 3D printer, and aims at solving deficiencies of complex structures, large size and low printing accuracy of 3D food printing equipment. The printer comprises a host, a spray nozzle, an X-axis assembly, a Y-axis assembly, and a Z-axis assembly. The X-axis assembly comprises a printing table and an X-axis motor; sliding rails supported by the host is arranged on the lower surface of the printing table; two sides of the sliding rails on the host are equipped with a plurality of guide wheels; and the lower surface of the printing table is connected to an X-axis synchronous belt. The Y-axis assembly comprises a Y-axis guiding beam, Y-axis guiding rails, and a Y-axis motor; a Y-axis sliding block is slidably mounted on the Y-axis guiding rails; the Y-axis sliding block is connected to a Y-axis synchronous belt; and the spray nozzle is mounted on the Y-axis sliding block. The Z-axis assembly comprises a Z-axis guiding beam, Z-axis guiding rails, and a Z-axis motor; a Z-axis sliding block is slidably mounted on the Z-axis guiding rails; the Z-axis sliding block is fixedly connected to the Y-axis guiding beam; the Z-axis motor is connected to a lifting screw; a lifting threaded sleeve is arranged on the Y-axis guiding beam; and the lifting threaded sleeve is adaptively connected to the lifting screw.

The invention discloses an adjusting and fixing mechanism which comprises a reference platform, a working platform and an adjusting and fixing assembly connected between the reference platform and the working platform. The adjusting and fixing assembly comprises a screw bushing, a press cover and a lock bolt, and the screw bushing and the press cover are both provided with bolt holes. The screw bushing is provided with an external thread, and the upper end of the screw bushing is provided with a groove. The working platform is provided with a thread hole engaged with the external thread of the screw bushing, the thread of the screw bushing is connected into the thread hole, and the lower end of the screw bushing protrudes a certain distance from the lower surface of the working platform. The lower end of the press cover is provided with a protruding block matched with the groove. The lower end of the lock bolt is provided with a thread, the reference platform is provided with a fixed screw hole engaged with the thread of the lower end of the lock bolt, and the lower end of the lock bolt penetrates through the bolt holes of the press cover and the screw bushing and is connected in the fixed screw hole in a threaded mode. The adjusting and fixing mechanism has high precision, reasonable and compact structure and convenient, stable and reliable installation. The invention also discloses an operating method for adjusting position by using the adjusting and fixing mechanism.

The invention belongs to the technical field of aluminum silicate fiberboard forming equipment, and provides an environment-friendly aluminum silicate board vacuum adsorption forming equipment and forming method. The equipment comprises a rack, a discharging rail, an upper die, a slurry tank, a lower die and a material receiving bottom board, wherein the discharging rail is horizontally arranged on the rack, the upper die is arranged below the discharging rail in a sliding mode, the upper mold is connected with a vacuum pipeline, the slurry tank is arranged below the rack, the slurry tank is positioned at one end of the discharging rail, the slurry tank is connected with a feeding pipeline, the lower die is arranged in the slurry tank in a lifting mode, the lower die is connected with a vacuum pipeline, and the material receiving bottom plate is arranged on the rack in a lifting mode, and is positioned at the other end of the discharging rail. According to the technical scheme, the problem that in the prior art, an aluminum silicate fiberboard forming machine is prone to collide with a just-formed board material during discharging so as to influence the product quality is solved.

A wafer thinning and polishing device comprises a rubberizing unit, a conveying unit and a thinning and polishing unit. The rubberizing unit is used for rubberizing the front surface of the wafer. The conveying unit is arranged on one side of the rubberizing unit and used for overturning and conveying the rubberized wafers. The thinning and polishing unit is arranged on one side of the conveying unit and comprises a sixth rodless linear air cylinder, a third rotating motor is arranged on one side of the sliding end of the sixth rodless linear air cylinder, a combined frame is arranged at one end of an output shaft of the third rotating motor, a pair of fourth rotating motors is arranged on the combined frame, grinding discs are arranged on output shafts of the third rotating motor, one grinding disc is a coarse grinding disc, and the other grinding disc is a fine grinding disc. A fifth rotating motor is arranged on one side face of a sliding block of the lead screw lifting assembly, a polishing wheel is arranged at one end of an output shaft of the fifth rotating motor, two sets of liquid spraying pipes are arranged on the two sides of the lead screw lifting assembly, and a plurality of laser distance measuring sensors are further arranged on one side of the lead screw lifting assembly. The wafer thinning and polishing device provided by the invention can be used for automatically gluing and transporting, and is simple in structure, low in equipment cost, high in thinning and polishing precision and relatively good in thickness uniformity of polished wafers.

The invention relates to the technical field of cutting, in particular to an intelligent feeding device for steel plate cutting. The intelligent feeding device comprises a metal laser automatic cutting machine, a tray is arranged at one side of the metal laser automatic cutting machine, a plurality of steel plate materials are arranged at one side of the tray, and a bottom plate is fixedly connected to one side of the metal laser automatic cutting machine; and a U-shaped guide frame is fixedly connected to one side of the bottom plate, a U-shaped supporting frame is fixedly connected to one side of the metal laser automatic cutting machine, a mounting groove is formed in one side of the U-shaped supporting frame, and the U-shaped guide frame is fixedly connected to the inner side of the mounting groove. According to the intelligent feeding device, the U-shaped guide frame, the U-shaped supporting frame, a lifting plate, a servo motor A, a first transmission device, an H-shaped slidingblock, a material pushing block, an automatic back-and-forth movement device, an L-shaped material pushing frame, a one-way passing plate, a precise driving device, an L-shaped positioning frame, a guide jacking plate and an automatic jacking device are arranged, so that the intelligent feeding device has the functions of automatic feeding, automatic continuous feeding, double material pushing, automatic positioning, automatic fixing and the like.

The invention relates to a device for connecting a lifting mechanism and a working box and applied to a 3D printer. The device comprises the working box, the lifting mechanism and an even number of electric suction discs, the electric suction discs are arranged at the top of the lifting mechanism and connect the working box with the lifting mechanism through magnetic force, and the electric suction discs are symmetrically arranged at the top of the lifting mechanism; and the lifting mechanism comprises a main frame, a driving member and lifting members, the driving member is arranged inside the main frame, and the lifting members are symmetrically arranged on both sides of the main frame correspondingly. According to the device for connecting the lifting mechanism and the working box and applied to the 3D printer, the fact that an existing working box can't keep the horizontal descent or descends too slowly , and can't reach the expected position quickly and stably in the descent process is overcome, in the non-printing process, the working box is separated from the lifting mechanism, and the maintenance is facilitated; and in the printing process, the working box is connected withthe lifting mechanism through the electric suction discs, a bottom plate of the working box can reach the expected position horizontally, stably and quickly, and the device printing accuracy is improved.

The invention discloses a jacking mechanism which comprises a base, a transverse movement part and a lifting part, wherein the transverse movement part comprises a transverse movement base and a transverse movement handle; the base is provided with a rotary seat which is internally provided with a ring convex cavity; the transverse movement handle comprises a braking part, a ring-shaped bulge and a thread section; the ring-shaped bulge is arranged in the ring convex cavity; the transverse movement base is connected with the transverse movement handle by screw threads; the lifting part comprises an internal thread seat, a lifting handle and a jacking rod; an internal thread hole is formed in the internal thread seat; the jacking rod is provided with external threads and a plurality of axial teeth; the length directions of the axial teeth are parallel to the axis of the jacking rod; the external threads arranged on the jacking rod are connected with the internal thread hole by screw threads; the internal thread seat is fixedly connected with the transverse movement base; the transverse movement handle is vertical to the jacking rod; a sealing ring is also arranged between the upper end of the jacking rod and the internal thread seat. The jacking mechanism is flexible in selection of a support point and can be conveniently installed relatively to a device to be jacked; furthermore, the jacking mechanism is long in service life, high in bearing capacity and high in jacking accuracy.