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High-precision double-lead worm and gear reducer for polishing mobile phone screen and method for adjusting high-precision meshing of worm and gear of reducer

A worm gear, double lead technology, applied in mechanical equipment, gear transmission, belt/chain/gear, etc., can solve the problem that the bearing clearance and backlash cannot be solved stably and reliably, the meshing accuracy of worm gear and worm is reduced, Bearing working accuracy is reduced and other problems, to achieve the effect of saving assembly gaskets, reducing assembly time, and improving strength

Pending Publication Date: 2019-08-09
ZHEJIANG ESSOR PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcoming: the nut and the worm screw are screwed in or out to force the worm to move axially in the inner ring of the bearing to adjust the bearing clearance and tooth side clearance, but it does not solve the nut loosening caused by the rotation of the nut with the worm , and the error gap caused by the cooperation between the sleeve and the stop washer, the stop washer and the nut, which leads to the inability to solve the problem of bearing clearance and tooth side clearance stably and reliably in use; secondly, the worm in the inner ring of the bearing The movement of the middle axis will cause the steel balls located in the inner ring and outer ring to wear more eccentrically, which will directly lead to a decrease in the working accuracy of the bearing, which in turn will lead to a decrease in the meshing accuracy of the worm gear

Method used

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  • High-precision double-lead worm and gear reducer for polishing mobile phone screen and method for adjusting high-precision meshing of worm and gear of reducer
  • High-precision double-lead worm and gear reducer for polishing mobile phone screen and method for adjusting high-precision meshing of worm and gear of reducer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: with reference to attached figure 1 and 2 . A high-precision double-lead worm gear reducer for mobile phone screen polishing, the double-lead worm gear 3 and the output shaft 4 are installed in the aluminum alloy box 1 and the meshing part of the double-lead worm gear 3 and the double-lead worm 2 There is a ring-shaped protrusion on each side (see attached figure 1 ), unmarked. Two sets of bearings 7 are sleeved on the double-lead worm respectively, and the inner rings of the two sets of bearings 7 are respectively in contact with the annular protrusions in the double-lead worm, and the two inner nuts 5 respectively pass through the two ends of the double-lead worm 2 and meet the aluminum The alloy box 1 is connected into one body, and two threaded pressure rings 6 respectively pass through the two ends of the double-lead worm 2 and are screwed with the inner nut 5, and the front surface of the threaded pressure ring 6 presses the bearing 7, and the loc...

Embodiment 2

[0011] Example 2: A high-precision meshing adjustment method for double-lead worm gears in a high-precision double-lead worm gear reducer for mobile phone screen polishing, two thread pressure rings in a high-precision double-lead worm gear reducer 6 Adjust the meshing accuracy of the double-lead worm 2 and the double-lead worm wheel 8 by screwing in or out with the inner nut 5. When the adjusted display meshing accuracy error is zero, tighten the locking screw 9 to connect the threaded pressure ring 6 to the aluminum Alloy box 1 can be locked.

[0012] The double-lead worm and the double-lead worm wheel constitute the prior art, and will not be described here. The method and device for detecting the meshing accuracy of the double-lead worm wheel and the double-lead worm are prior art, and will not be described here.

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Abstract

The invention relates to a high-precision double-lead worm and gear reducer for polishing a mobile phone screen and a method for adjusting high-precision meshing of the worm and gear of the reducer. According to the reducer and the method, zero backlash transmission is achieved, and the structure is simple and reliable. A double-lead worm gear and an output shaft are arranged in an aluminum alloybox body; two sides of meshing part of the double-lead worm gear and a double-lead worm are each provided with a ring bulge correspondingly; two bearings respectively sleeve the double-lead worm; inner rings of the two bearings are respectively in contact with the ring bulges in the double-lead worm; two inner nuts respectively penetrate through two ends of the double-lead worm and are integratedwith the aluminum alloy box body; two thread pressing rings respectively penetrate through two ends of the double-lead worm to be screwed with the inner nuts; the bearings are pressed by the front endfaces of the thread pressing rings; and the thread pressing rings are locked with the aluminum alloy box body by locking screws at the side ends of the inner nuts, so that double-lead screws are dynamically positioned.

Description

technical field [0001] The invention relates to a high-precision double-lead worm gear reducer and method for mobile phone screen polishing, which can not only realize zero backlash transmission, but also has a simple and reliable structure, and belongs to double-lead Worm gear reducer manufacturing field. Background technique [0002] CN109667923A, titled "a worm wheel and worm backlash adjustment device", including: worm wheel, worm, nut, bearing, and stop washer, wherein, the worm wheel is installed in the housing and meshed with the worm; the two ends of the worm Nuts, stop washers and bearings are arranged sequentially from the outside to the inside; the two bearings install the worm in the housing, and the worm can move axially in the inner ring of the bearings; the two nuts use Used to adjust bearing clearance and backlash. Its shortcoming: the nut and the worm screw are screwed in or out to force the worm to move axially in the inner ring of the bearing to adjust t...

Claims

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Application Information

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IPC IPC(8): F16H1/16F16H57/023F16H57/039F16H57/12
CPCF16H1/16F16H57/039F16H57/023F16H57/12
Inventor 林秀薰郭晓伟沙元彪
Owner ZHEJIANG ESSOR PRECISION MACHINERY