11results about How to "Eliminate wobble" patented technology

The application discloses a semiconductor flat-plate warehouse inserting and taking structure, which comprises an inserting and taking connecting frame, an inserting and taking arm and a self-adapting locking mechanism arranged on the inserting and taking arm. The self-adapting locking mechanism mainly comprises a straight-line transmission rod, a scissor type lifting amplification mechanism, a limiting pressing plate and a guiding reset unit. The core of the application is that the self-weight load generated during the inserting and taking of the flat-plate warehouse is used as a driving force. When the inserting and taking arm supports the flat-plate warehouse, the weight presses the straight-line transmission rod, forces the scissor type lifting mechanism to expand and drives the limiting pressing plate to stably move downwards, so that the positioning pin on the limiting pressing plate is inserted into the pin hole of the flat-plate warehouse, automatic locking and positioning are realized. After unloading, the mechanism is automatically reset under the action of the reset spring. The application does not need external power, realizes "inserting and taking to locking", can effectively inhibit the inertial swing and vibration during the carrying process, prevents the wafers in the warehouse from being damaged due to knocking and has the advantages of simple structure, reliability, safety and high positioning precision.

The application relates to a vacuum smelting furnace feeding lifting mechanism, which comprises a feeding chamber and a lifting device arranged at the upper end in the feeding chamber. The lifting device comprises an electric hoist, the electric hoist is provided with a chain, the end of the chain is provided with a hook, the inner side wall of the feeding chamber is provided with a rectangular frame, the rectangular frame is internally provided with a horizontally-sliding mounting rack, the front end of the mounting rack is provided with a guide plate, the outer side of the rectangular frame is provided with a horizontal moving mechanism for driving the mounting rack to horizontally move, the guide plate is provided with a through hole for the chain to pass through, and the hook is located below the guide plate. Through the combined motion of horizontal movement and vertical lifting, the hook is actively deviated from the position directly below the lifting lug, and manual pulling of the inclined hook is not needed.

The invention relates to the technical field of cranes, and discloses a crane which comprises a vehicle body, a lifting hook, a distance measuring assembly and a gyroscope, the distance measuring assembly is installed on the vehicle body, and the gyroscope is installed on the lifting hook; the swinging posture change of a lifted object can be monitored in real time by additionally arranging the gyroscope on the lifting hook, the linear displacement change of the lifted object can be measured in real time by additionally arranging the distance measuring assembly on the vehicle body, after data obtained by the gyroscope and the distance measuring assembly is transmitted to the control system, the real-time motion state of the lifted object can be judged by the control system, and then the motion state of the vehicle body is adjusted accordingly. Swinging of a hung object is eliminated, and safety of an operator and the surrounding environment is guaranteed; the equipment can eliminate swing and is lower in cost and maintenance difficulty compared with the prior art.

The invention discloses a straight web steel box girder capable of suppressing wind vibration, belonging to the technical field of steel box girder structures. A plurality of vibration suppressing parts arranged in the steel box girder are installed, and the vibration suppressing parts can effectively eliminate the vibration of the steel box girder of a bridge body caused by strong wind. When the steel box girder swings in one direction, a swing beam suspended in the steel box girder and a seeding block fixed on the swing beam swing in the opposite direction of the wind flow relative to the steel box girder under the action of gravity. The swing can eliminate the force that pushes the steel box girder to swing in one direction, so that the swing of the steel box girder is reduced or even eliminated. The plurality of vibration suppressing parts respectively eliminate the swing of the steel box girder at their installation positions, so that the swinging trend of the entire steel box girder can be offset, and the vibration of the bridge caused by the swing of the steel box girder caused by the wind can be avoided. This structure eliminates the wind vibration phenomenon caused by the shaking of the bridge caused by strong wind, so that the bridge will not swing under strong wind conditions, thereby ensuring the comfort and safety of bridge driving, and avoiding fatigue damage of bridge components caused by vibration.

The utility model discloses a high-precision buffering supporting rod which comprises a guide rod, a positioning connector, a mounting connector, a guide sleeve and an elastic piece. The positioning connector and the mounting connector are fixedly arranged at the two ends of the guide rod respectively, the guide rod is sleeved with the guide sleeve and located between the positioning connector and the mounting connector, and the guide rod is sleeved with the elastic piece and located between the guide sleeve and the mounting connector; a ball spline structure is arranged between the guide sleeve and the guide rod, the guide sleeve is a spline nut, the guide rod is a spline shaft, and the guide sleeve is in linear sliding connection with the guide rod through the ball spline structure. The guide sleeve is in linear sliding connection with the guide rod through the ball spline structure, so that tight linear sliding connection is achieved between the guide sleeve and the guide rod, a gap between the guide sleeve and the guide rod is remarkably reduced, swing of the guide rod is effectively restrained, and the swing phenomenon of the guide rod is almost eliminated. In the working state, lifting of the guide rod is completed through rolling of the balls along the key grooves, direct hard friction is avoided through the design, abrasion and noise are remarkably reduced, meanwhile, dust is reduced, and the service life is prolonged.

The utility model belongs to the trailer technology field of bicycle, especially a bicycle trailer connecting type buckle, including trailer connecting seat, the both ends of U type of trailer connecting seat are provided with connecting mechanism, the connecting mechanism realizes trailer connecting seat and bicycle quick -witted connection installation's action. This bicycle trailer connecting type buckle, the trailer connecting seat of this device is through U type structure and limit sleeve shaft quick sleeve joint bicycle rear wheel axle, and the combination hoop mechanism and locking screw realizes the change from "hangs the connection" to "locks dead", forms rigid and reliable connection, effectively avoids the accidental drop of trailer in the driving. The design of rotating mechanism cooperation ball head plunger and arc -shaped groove can be free to tilt when guaranteeing bicycle overbend, provides clear rotation limit and straight -line travel positioning feeling for trailer, eliminates the control risk and swing brought by rigid traction, improves the smooth and stable feeling of riding, makes trailer follow naturally like the extension of the car body.

The invention discloses a high-voltage high-power V-shaped reciprocating vacuum pump which comprises a machine body, an air inlet and exhaust port, an input mechanism, a base and an oil observation window. The two V-shaped isolation cavities of the machine body are fixedly connected with two air cylinders through positioning bosses and a plurality of bolt assemblies, the upper portions of the two air cylinders are fixedly connected with two air cylinder covers through positioning bosses and a plurality of bolt assemblies, and the lower portions of the two air cylinders are provided with main packing sealing assemblies. An auxiliary packing sealing assembly and an oil scraping ring assembly are arranged on the lower portion of the machine body isolation cavity, the air cylinder and the air cylinder cover are provided with air valve assemblies, a slider-crank mechanism is arranged in the machine body, the output end of the input mechanism is fixedly connected with the slider-crank mechanism, and the air pipe is arranged on the machine body. The maintenance workload is reduced.

This utility model discloses a circular die-cutting machine, relating to the technical field of circular die-cutting machines. It includes a fixed plate, a circular die-cutting assembly on the top of the fixed plate, a gantry frame on the top of the fixed plate, and a fixed shell on the surface of the gantry frame. Limiting mechanisms for preventing material deviation on the left and right sides are provided on the gantry frame and the fixed shell. Two clamping mechanisms for clamping the material on the upper and lower sides to prevent jumping are provided on the limiting mechanisms. Each limiting mechanism includes a limiting shaft rotatably mounted on the gantry frame. A gear is fixedly mounted at the bottom end of the limiting shaft. Two moving rods are slidably mounted on the inner wall of the fixed shell. A toothed rod is fixedly mounted on the surface of each of the two moving rods, and the two toothed rods mesh with the gear. This utility model achieves positioning and correction for materials of various widths and thicknesses, offering high flexibility, good correction effect, improved die-cutting accuracy, simple operation, and strong practicality.

This invention discloses a drone lifting and locking mechanism, system, and docking control method. It includes a suspension device and a locking seat. The suspension device comprises a suspension section with a suspension seat at its top. A positioning seat is mounted on the lower side of the suspension section via multiple connecting rods. Half-gears are rotatably mounted on the connecting rods. A driver is mounted on the suspension section, and a drive gear is mounted on the output shaft of the driver, simultaneously meshing with each half-gear. A groove is provided in the middle of the upper side of the locking seat to mate with the positioning seat, and an annular groove is provided within the groove. When the driver drives each half-gear to rotate, a portion of the half-gear extends out of the positioning seat and inserts into the annular groove. This connects and locks the suspension device to the locking seat, eliminating the need for manual hooking or binding when docking the drone with cargo, making docking more convenient and reducing safety risks.

The present invention relates to a mechanical damping device for a butterfly valve to resist water flow vibration, which is installed at the lower end surface of the butterfly valve body. The device comprises a base box with an opening downward, a cover plate fixed at the opening of the base box by bolts, a cam rotatable with the valve disc shaft and installed in a circular hole of the base box, a push rod which rotates with the cam to produce lateral movement, and a disc spring which is compressed and produces a reaction force in cooperation with the lateral movement of the push rod. Compared with the prior art, the present invention has the advantages of eliminating all swing vibrations caused by transmission matching clearances, good sealing, greatly prolonged service life, simple construction and easy manufacturing.

The invention discloses a split type magnetic encoder calibration device, and belongs to the technical field of encoder calibration equipment. The split type magnetic encoder calibration device comprises a first mounting rack, an encoder fixing plate, a first adapter shaft, a first shaft system positioning structure, a calibration rotation output device and a first coupler. Due to the fact that the first shafting positioning structure is connected to the first top plate, and the first coupling shaft penetrates through the first shafting positioning structure, the first shafting positioning structure can circumferentially support the first coupling shaft so as to eliminate swinging and shaking errors of the first coupling shaft in the rotating process. Therefore, the relatively accurate relative error of the split type magnetic encoder relative to the calibration device is obtained, the relative error is used as an angle error compensation basis, and the precision of the split type magnetic encoder is improved.