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Planar secondary enveloping ring surface worm and gear and manufacturing method thereof

A technology of plane secondary enveloping and manufacturing methods, which is applied in the direction of gear transmission, belt/chain/gear, portable lifting device, etc., can solve the problems of decreased transmission accuracy, unstable operation, increased noise, etc., and achieves the elimination of gear Side clearance, increase load capacity, reduce the effect of tooth side clearance

Active Publication Date: 2021-07-27
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technical solution cannot solve the problems of decreased transmission accuracy, increased noise, and unstable operation caused by the large gap between the helical gear and the worm gear after running for a certain period of time.

Method used

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  • Planar secondary enveloping ring surface worm and gear and manufacturing method thereof
  • Planar secondary enveloping ring surface worm and gear and manufacturing method thereof
  • Planar secondary enveloping ring surface worm and gear and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The present invention provides a method for manufacturing a plane quadratic enveloping toroidal worm gear 1, which includes the steps of manufacturing the worm 100, the manufacturing step of the hob 400 and the manufacturing step of the worm wheel 200, wherein, when the worm wheel 200 is a straight tooth profile For a gear with a simple tooth surface, the worm 100 corresponding to the worm wheel 200 is a planar primary enveloping toroidal worm drive. The worm tooth surface formed by the plane envelope can be precisely ground, so that not only the machining accuracy is improved, but also the hard tooth surface can be used to improve the load-carrying capacity. At the same time, the design structure of the worm 100 can be used as the process parameter for manufacturing the hob 400, and the corresponding worm wheel 200 can be re-enveloped according to the conjugate motion, so that the worm wheel 200 and the worm 100 can realize double-line contact during operation to improv...

Embodiment 2

[0089]The present invention also discloses a plane secondary enveloping toroidal worm gear 1 made by adopting the manufacturing method described in Embodiment 1, such as Figure 5 Shown is the three views of the planar quadratic enveloping toroidal worm gear 1 .

[0090] The planar quadratic enveloping toroidal worm gear 1 is formed by meshing a worm 100 and a worm gear 200 whose rotation axes are out of plane with each other under the condition of matching modulus and / or pressure angle. Preferably, axes out of plane means that the worm wheel rotation axis 240 and the worm screw rotation axis 140 are out-of-plane straight lines, the worm wheel rotation axis 140 and the worm wheel rotation axis 240 are not on the same plane, neither intersecting nor parallel. Preferably, the worm axis of rotation 140 and the worm wheel axis of rotation 240 are orthogonal to each other. Through this arrangement, the friction between the worm gear 230 and the wormway 160 can be reduced, and a la...

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Abstract

The invention relates to a plane secondary enveloping ring surface worm gear and worm and a manufacturing method thereof. The manufacturing method is characterized by comprising a worm manufacturing step: the worm is at least divided into a left half section worm and a right half section worm for segmented manufacturing, and a left worm tooth surface and a right worm tooth surface are respectively formed through conjugate motion enveloping based on corresponding female surfaces. A first grinding tool used for machining the left half section worm and a second grinding tool used for machining the right half section worm grind blanks of the left half section worm and the right half section worm rotating around the worm rotating axis at the same cut-in angle and / or cut-in depth so as to form respective corresponding primary machined parts. The first grinding tool and the second grinding tool deflect by a certain angle in the opposite rotating directions to grind the primary machined parts, so that the grinding amount of the right side tooth surface of the left worm tooth surface is larger than that of the left side tooth surface of the left worm tooth surface, and the grinding amount of the left side tooth surface of the right worm tooth surface is larger than that of the right side tooth surface of the right worm tooth surface. The left half worm and the right half worm with different tooth surface structures are combined to form the worm.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a plane secondary enveloping toroidal worm gear and a manufacturing method thereof. Background technique [0002] The worm gear transmission mode is widely used. Both the worm gear and the worm are installed on the body through the rotating shaft and bearings. The outer side of the worm is processed with helical teeth, and the periphery of the worm gear is processed with worm gear teeth matching the helical teeth. The driving device drives the worm to rotate. Drive the worm gear to rotate to achieve the purpose of power transmission. Due to the large friction force and serious wear of the worm gear transmission, there will be a large gap between the helical teeth and the worm gear teeth after a certain period of operation. The worm gear structure currently used cannot adjust the above gap, which will reduce the transmission accuracy and increase the noise. unstable...

Claims

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Application Information

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IPC IPC(8): F16H1/16F16H55/28B23P15/14
CPCF16H1/16F16H55/28B23P15/14
Inventor 刘清友邓星桥王帆费春霞
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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