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Gear with surface texture tooth surfaces

A technology of surface texture and gears, applied to components with teeth, belts/chains/gears, gear lubrication/cooling, etc., can solve problems affecting the working efficiency and service life of mechanical equipment, and affect the performance of mechanical systems, etc., to achieve Reduced friction coefficient, small groove width, and reduced abrasive wear

Inactive Publication Date: 2013-01-23
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The friction and wear of gear teeth directly affects the working efficiency and service life of mechanical equipment, and then affects the performance of the entire mechanical system.

Method used

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  • Gear with surface texture tooth surfaces
  • Gear with surface texture tooth surfaces
  • Gear with surface texture tooth surfaces

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the present invention is provided with evenly arranged surface texture marks on each tooth surface of the gear.

[0026] Such as figure 1 , image 3 As shown, the surface texture marks are strip-shaped convex marks or strip-shaped dent-shaped surface texture marks parallel to the gear meshing line. It is conducive to the formation of a dynamic pressure lubricating film, the texture direction is parallel to the gear meshing line, the groove width along the speed direction is small, the dynamic pressure effect is enhanced, and the friction coefficient is reduced, thereby reducing the friction and wear of the tooth surface.

[0027] Such as figure 2 , Figure 4 As shown, the surface texture trace type is a surface texture trace type with grid-like convex grooves or grid-like dent...

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Abstract

The invention discloses a gear with surface texture tooth surfaces. Uniformly arranged surface texture mark forms are arranged on each tooth surface of the gear. The surface texture mark forms are strip-type convex mark forms or strip-type concave mark forms which are parallel to gear engagement lines. Or, the surface texture mark forms are provided with grid-like convex mark forms or grid-like concave mark forms which are parallel and vertical to gear engagement lines. A surface texture is machined on a tooth surface, so that the gear with surface texture tooth surfaces can accommodate abrasive particles, and reduce the abrasive particle abrasion between the tooth surfaces; the gear with the surface texture tooth surfaces can store lubricating oil, take away friction heat generated between the tooth surfaces, reduce the tooth surface temperature, and prevent tooth surface agglutination from invalidation; and according to a partial film elastic fluid lubrication theory, the gear with surface texture tooth surfaces is favorable for forming an elastic fluid hydrodynamic lubricating oil film to improve the lubrication state. By the surface texture tooth surfaces, the wearing resistance of the gear can be improved, and the service life of the gear can be prolonged.

Description

technical field [0001] The invention relates to a gear, in particular to a gear with a textured tooth surface. Background technique [0002] The gear transmission mechanism is a line contact high-pair mechanism in operation. The contact stress of the gear teeth is very high, and the radius of curvature of the gear teeth is small. It is difficult to establish a fluid lubrication state, often in a mixed lubrication state. At high loads, the rough surface tends to break the lubricating oil film and even cause direct friction between protruding points. The friction and wear of gear teeth directly affects the working efficiency and service life of mechanical equipment, and then affects the performance of the entire mechanical system. Therefore, it is imminent to ensure that the gears are well lubricated, to overcome or reduce the occurrence of failures such as gear friction and wear, and to prolong the service life of the gears. [0003] In recent years, a large number of stud...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/17F16H57/04
Inventor 冯兰兰金亭亭汪久根吴长鸿
Owner ZHEJIANG UNIV
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