Hyperboloidal inner bore and transmission mechanism using same

A gear transmission mechanism, hyperboloid technology, applied in transmissions, differential transmissions, mechanical equipment, etc., can solve the problems of gear meshing accuracy and life impact, and achieve the effect of avoiding tooth flank contact

Inactive Publication Date: 2012-06-20
天津天海同步科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These abnormal contacts will have a serious impact on the meshing accuracy and life of the gears

Method used

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  • Hyperboloidal inner bore and transmission mechanism using same
  • Hyperboloidal inner bore and transmission mechanism using same
  • Hyperboloidal inner bore and transmission mechanism using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The formation principle of the hyperboloid inner hole is: an arbitrary straight line rotates around another central axis that is different from it, and the spatial shape obtained. Such as Figure three shown.

[0018] If the planetary gear shaft hole is processed into the shape shown in the figure, it will normally cooperate with the normal planetary gear shaft according to the minimum diameter of the middle part. When meshing with the side gear, if the cone top of the planetary bevel gear has a certain slight displacement, the planetary gear can swing and automatically adjust the contact to ensure normal meshing with the side gear. In this way, the above-mentioned Figure three As shown, the case of tooth flank contact when the bevel gear meshes.

[0019] According to the above, the formation principle of the inner hole of the hyperboloid is the same as that of a general cylinder. The hyperboloid is also formed by a generatrix rotating around a cylindrical surface, ...

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PUM

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Abstract

The invention provides a hyperboloidal inner bore and application of the hyperboloidal inner bore in a transmission mechanism. The curved surface shape of the bore wall of the inner bore is a space shape curved surface which is obtained in a way that a straight line rotates for a circle around a central axis of the bore. According to the invention, the hyperboloidal inner bore provided by the invention has the beneficial effects that a planet gear hole and a normal planet gear shaft are normally matched according to the minimum diameter of a central part. When the hyperboloidal inner bore is meshed with a half shaft gear, if the conic node of a planet bevel gear has a certain minuteness displacement, a planet gear can swing and can automatically adjust contact so as to guarantee the normal meshing with the half shaft gear; thus, tooth flank deflection contact condition can be avoided when the bevel gear is meshed,.

Description

technical field [0001] The invention belongs to the field of mechanical transmission mechanisms, and in particular relates to a shaft hole of a special shape in which each meshing gear axle is fitted in a gear transmission mechanism. Background technique [0002] We know that in the transmission of bevel gears, to ensure that the tops of the cones coincide, the meshing contact area of ​​the bevel gears should be located at the middle of the long teeth and slightly smaller than the small end, such as figure 1 A pair of well meshing bevel gears shown, the contact area under normal conditions. [0003] However, due to the joint action of various factors such as machining errors and installation errors, there are often abnormal contact areas in the gear meshing. For example, in a non-slip differential, there is a pair of side gears and planetary gears meshing. Due to the inevitable manufacturing errors and assembly errors in the holes of the planetary gear shafts and the housin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/20F16H55/18F16H48/38
Inventor 张鸿源李国志郝旭陶磊王蕊
Owner 天津天海同步科技有限公司
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