Gap eliminator for worm and wormwheel

A technology of worm gears and worms, which is applied in hoisting devices, portable lifting devices, belts/chains/gears, etc., can solve the problems of inconvenient adjustment of side clearance, high welding technology requirements, and deformation of worms, etc., and achieves simple structure and high efficiency. Stability, smooth running effect

Inactive Publication Date: 2008-07-02
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design is feasible, but there are still some shortcomings, because welding on the worm often leads to deformation of the worm, which requires high welding technology
On the other hand, its mechanism has carried out a lot of technical processing on the worm, such as adding loop frames, rolling elements, milling deep grooves, etc., and when it is applied to precision adjustment, the worm needs to be divided into two sections, which makes the structure much more complicated. Not convenient enough

Method used

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  • Gap eliminator for worm and wormwheel
  • Gap eliminator for worm and wormwheel
  • Gap eliminator for worm and wormwheel

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Embodiment Construction

[0016] see figure 1 , figure 2 . figure 1 It is an assembly sectional view of the worm part of the worm gear and worm anti-backlash device of the present invention. It can be seen from the figure that the worm gear and worm anti-backlash device of the present invention includes a worm gear clearance adjustment mechanism and a worm clearance adjustment mechanism. The structural form of the worm gear gap adjustment mechanism is that the rotating body 107 is inserted into the frame body 101 first, and then the worm wheel 106 and the bearings 105 at both ends of the worm wheel (two places) are installed on the frame body 101 and the rotating body 107. Between them, the rotating body pressure ring 103 is installed on the threaded end of the rotating body 107 to compress the worm wheel 106, and then the rotating body pressure ring 103 is fixed with set screws 104. The rotating body pressure ring 103 is a circular ring with threads in the center, and a plurality of threaded holes ...

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Abstract

The inventive worm and worm wheel backlash eliminating device uses a rotor pressure ring to regulate the worm wheel axially, in order to increase the fit precision of the worm and worm wheel contact surface. A mounting screw through hole is also used for making the worm sleeve have a radial translation regulation, so as to drive the worm mounted in the worm sleeve to move parallelly to achieve the goal of regulating the fit precision of the worm and worm wheel contact surface.

Description

technical field [0001] The invention relates to a worm gear, and is a worm gear anti-backlash device, which is mainly used in the mechanical transmission device of the worm gear mechanism, and is especially suitable for the transmission device in precision mechanical adjustment such as optics. Background technique [0002] Worm gear drives are commonly used to transmit rotary motion between interleaved shafts. It has the advantages of compact structure, stable operation, small impact and vibration, and large single-stage transmission ratio. Due to the unique advantage of the large transmission ratio of the worm gear, the worm gear has great practical value in improving the adjustment accuracy of the optical adjustment frame. However, the fit gap between worm gears and worms is one of the main reasons for the decrease of the stability of the overall mechanism, which is very unfavorable for the worm gear device to be used in precision instrument transmission and other devices...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H55/24
Inventor 朱健强高洁蔡志坚王国兴
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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