Inner-engaged helical gear pair based on space conjugate curve

A technology of conjugate curves and helical gear pairs, applied in belts/chains/gears, components with teeth, portable lifting devices, etc., can solve the problem of single contact form of internal meshing helical gear pairs that cannot meet the diverse needs of gear pairs and other problems, to achieve the effect of reducing the sliding rate, expanding the contact characteristics, and high transmission efficiency

Pending Publication Date: 2021-02-19
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The internal meshing helical gear pair disclosed above has a single contact form, and none of them can meet the diverse needs of the gear pair.

Method used

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  • Inner-engaged helical gear pair based on space conjugate curve
  • Inner-engaged helical gear pair based on space conjugate curve
  • Inner-engaged helical gear pair based on space conjugate curve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment provides an internal meshing helical gear pair based on space conjugate curves, including a pair of convex tooth pinion 1 and convex tooth internal gear 2 with convex tooth profile, the convex tooth pinion 1 and convex tooth The internal gears 2 are of helical gear structure and are in a point contact state during the meshing process; the tooth surface contact trace C of the convex pinion 1 1 Contact trace C with the tooth surface of the convex internal gear 2 2 are space conjugate curves.

[0032] Tooth surface contact trace C of convex pinion 1 1 Contact trace C with the tooth surface of the convex internal gear 2 2 , There are various forms of tooth surface contact traces, and appropriate line types can be provided according to design requirements to meet specific meshing conditions.

[0033] The tooth surface contact trace C of the convex tooth pinion 1 1 The general expression of is:

[0034]

[0035] Among them, t is a space arbitrary curve...

Embodiment 2

[0047] This embodiment provides an internal meshing helical gear pair based on space conjugate curves, including a pair of convex tooth pinion 1 with convex tooth profile and convex tooth internal gear 2, the convex tooth pinion 1 and convex tooth The internal gears 2 are of helical gear structure and are in a point contact state during the meshing process; the tooth surface contact trace C of the convex pinion 1 1 Contact trace C with the tooth surface of the convex internal gear 2 2 are space conjugate curves.

[0048] Such as figure 1 As shown, establish the space coordinate system of the internal meshing helical gear pair based on the space conjugate curve, where S(O-x,y,z) and S p (O p -x p ,y p ,z p ) is a space fixed coordinate system, S 1 (O 1 -x 1 ,y 1 ,z 1 ) and S 2 (O 2 -x 2 ,y 2 ,z 2 ) is the moving coordinate system fixedly connected with the convex pinion 1 and the convex internal gear 2 respectively. ω 1 and ω 2 are the rotational angular velo...

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PUM

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Abstract

The invention belongs to the technical field of gear transmission, and particularly relates to an inner-engaged helical gear pair based on a space conjugate curve. The inner-engaged helical gear paircomprises a pair of convex tooth pinion with a convex tooth profile and a convex tooth internal gear; the convex tooth pinion and the convex tooth internal gear are both of helical gear structures, and are in a point contact state in the engagement process; and the tooth surface contact trace C1 of the convex tooth pinion and the tooth surface contact trace C2 of the convex tooth internal gear arespace conjugate curves. According to the inner-engaged helical gear pair based on the space conjugate curve, the requirement of a current electromechanical equipment transmission system for a high-performance gear can be met, and the contact characteristic of the inner-engaged helical gear pair can be expanded.

Description

technical field [0001] The invention belongs to the technical field of gear transmission, and in particular relates to an internal meshing helical gear pair based on space conjugate curves. Background technique [0002] Compared with external gear transmission, internal gear transmission has the advantages of compact structure, small volume and high load capacity, and is widely used in planetary gear transmission mechanisms. In the existing internal meshing involute gear transmission, the contact tooth surface is mainly formed based on the theory of space conjugate surface, usually in the form of convex-convex tooth profile contact, which has low bearing capacity of the tooth surface and large slip rate between the tooth surfaces , Serious tooth surface wear and other problems; In addition, internal meshing gear pairs mostly use displacement gears, and their design and manufacturing quality requirements are high. [0003] With the development of science and technology, high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/17F16H55/08
CPCF16H55/08F16H55/17
Inventor 梁栋孟胜
Owner CHONGQING JIAOTONG UNIVERSITY
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