Harmonic teeth-driving stage-less speed variator

A continuously variable transmission, tooth transmission technology, applied in the direction of transmission, friction transmission, belt/chain/gear, etc., can solve the problem of low efficiency, achieve the effect of convenient speed change, improve efficiency, and save the trouble of shifting.

Inactive Publication Date: 2008-02-20
李维农
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above three types are essentially using friction, so the efficiency is low

Method used

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  • Harmonic teeth-driving stage-less speed variator
  • Harmonic teeth-driving stage-less speed variator
  • Harmonic teeth-driving stage-less speed variator

Examples

Experimental program
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Embodiment Construction

[0014] Embodiments of the present invention are shown in Figure 1 and Figure 2, in which 1 is an input shaft, 2 is a wave generator, 3 is a rigid spline, 4 is a flexible spline, 5 is an output shaft, and 6 is a roller. In the implementation, it can be designed and manufactured according to the schematic diagram of the mechanism and the specific application environment. The cone angle of the rigid wheel 3 should be within an appropriate range to ensure the proper clearance and lubrication of each part. You can refer to some relevant parameters of the existing harmonic reducer. When the rigid spline 3 does not move, the flexible spline 4 moves axially relative to the rigid spline, and the driving shaft 1 drives the wave generator 2 to rotate, the wave generator 2 forces the flexible spline 4 to produce continuous elastic deformation through the roller 6, although the rigid spline 3 When the number of teeth is fixed, the tooth thickness or tooth slot width is variable, but because...

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Abstract

The invention belongs to the field of mechanical stepless transmission and includes a harmonic gear-driving stepless transmission, which is composed of a driving shaft, a driven shaft, a rigid gear, a flexible gear, a wave generator and a roller; the flexible gear can make axial movement relative to the rigid gear, the teeth of the flexible gear are composite teeth, which are composed of two branch teeth. When the flexible gear makes axial movement relative to the rigid gear, the angle between the two branch teeth of the composite teeth and the tooth thickness are variable, when the rigid gear keeps stationary and the driving shaft actuates the wave generator to rotate, the wave generator forces the flexible gear to generate continuous elastic deformation by the roller, and the tooth thickness of the composite teeth of the flexible gear also changes with the deformation of the flexible gear; because the tooth thickness or the width between the teeth keeps variable when the teeth number of the rigid gear is fixed, although the teeth number ratio of the flexible gear and the rigid gear keeps unchanged, the arc length passing the nodal circle is variable, and the stepless transmission can be realized so long as the flexible gear makes axial movement relative to the rigid gear.

Description

technical field [0001] The invention belongs to the field of mechanical stepless transmissions. Background technique [0002] In the field of mechanical continuously variable transmissions, there are currently three categories: namely (1) hydraulic type; (2) electromagnetic type; (3) friction type. The above three types are essentially using friction, so the efficiency is low. [0003] The purpose of the present invention is to design a mechanical continuously variable transmission system that can overcome the above-mentioned shortcomings and realize rigid connection, so as to realize the long-awaited goal of people in the field of mechanical transmission. Contents of the invention [0004] The invention discloses a harmonic gear drive continuously variable transmission, which is composed of a driving shaft, a driven shaft, a rigid wheel, a flexible wheel, a wave generator and rollers, the flexible wheel can move axially relative to the rigid wheel, and the rigid wheel is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H13/08
Inventor 李维农
Owner 李维农
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