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Microsegment gear

A micro-segment and gear technology, applied in belts/chains/gears, components with teeth, portable lifting devices, etc., can solve the problems of insufficient bending strength, low contact strength of involute gears, etc., to achieve the minimum number of teeth, Suitable for miniaturization and high transmission efficiency

Active Publication Date: 2008-01-30
赵韩 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the circular arc gear basically solves the problem of low contact strength of the involute gear, the bending strength is insufficient, and it must be made into a helical gear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Micro-segment gear transmission with a gear ratio of 11:51. The pinion gear is a gear with a small number of teeth that has not been adjusted in structure (that is, other parameters such as addendum height coefficient, slot width, etc. do not need special treatment except for the tooth shape factor), and the large gear meshing with it has 51 teeth, which is also a micro-segment gear . It can be a straight toothed gear or a helical toothed gear.

Embodiment 2

[0041] A pair of micro-segment gears for meshing transmission, the number of teeth of the small gear is 3, the number of teeth of the large gear is 12, and the module is 6. The addendum height coefficient of the small gear is 1.4, the dedendum height coefficient is 0.6, the indexing circular tooth thickness is 0.7πm, and the tooth groove width is 0.3πm; the addendum height coefficient of the large gear is 0.6, and the dedendum height coefficient is 1.4. The indexing circular tooth thickness is 0.3πm, and the slot width is 0.7πm. (See Figure 5)

Embodiment 3

[0043] A pair of micro-segment gears for meshing transmission, the number of teeth of the small gear is 8, the number of teeth of the large gear is 20, and the module is 2. The addendum height coefficient of the small gear is 1.1, the dedendum height coefficient is 0.9, the indexing circular tooth thickness is 0.55πm, and the tooth slot width is 0.45πm; the addendum height coefficient of the large gear is 0.9, and the dedendum height coefficient is 1.1. The indexing circular tooth thickness is 0.45πm, and the slot width is 0.55πm.

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Abstract

A micro line segment type gear features that its profile curve is composed of the smoothly linked several micro curve segments or micro straight line segments and its minimal number of teeth is 3. It is especially suitable for high speed, heavy load and small size.

Description

technical field [0001] The invention relates to a micro-segment gear applied in the field of mechanical transmission and power transmission. Background technique [0002] Gears are indispensable and important parts of all kinds of industrial machinery, automobiles, ships, locomotives, airplanes and other machinery and devices. It is one of the main forms of transmitting motion and power in mechanical equipment, and its performance largely determines The quality and level of mechanical products. [0003] At present, involute gears are the most used. Involute gears have many advantages, such as simple manufacture, good interchangeability, easy to change positions, etc., but their disadvantages are also obvious, such as low strength, especially low contact strength. , The minimum number of teeth is large, so that the volume is larger, etc. The minimum number of teeth without undercutting is 17. After taking measures such as displacement, the minimum number of teeth is difficul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H55/17
Inventor 赵韩黄康
Owner 赵韩