Wave generator cam design method, wave generator and harmonic reducer

A technology of harmonic reducer and wave generator, applied in computer-aided design, design optimization/simulation, instruments, etc., can solve the problems of plummeting harmonic performance, depression, damage, etc., to speed up the research and development process and reduce wear and tear Effect

Active Publication Date: 2019-09-10
SHENZHEN TONGCHUAN TECH
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Problems solved by technology

However, when this kind of wave generator works in harmonic mode, because the curve curvature change is not suitable for the harmonic motion track, the harmonic tooth surface will be severely worn, which will directly lead to excessive iron powder content, which will have a direct impact on the harmonic life; In addition, most of this kind of harmonic reducer will have the phenomenon that the wave generator is pressed down. As the service time increases, the bearings and flexible bearings will have different damages. When the bearings are damaged, the harmonic performance will plummet. Finally, this During the use of the harmonic reducer, it is easy to have movement and abnormal noise. At this time, the temperature of the harmonic reducer will be too high. When the temperature is too high, the tooth surface is easy to deform and cause serious wear

Method used

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  • Wave generator cam design method, wave generator and harmonic reducer
  • Wave generator cam design method, wave generator and harmonic reducer
  • Wave generator cam design method, wave generator and harmonic reducer

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Embodiment Construction

[0038] In order to better understand the present invention, below in conjunction with accompanying drawing and specific embodiment do further description:

[0039] Such as figure 1 The design method of the shown wave generator cam comprises the following steps:

[0040] i. Establish finite element model

[0041] The finite element model is established in the finite element pre-processor HYPERMESH according to the harmonic reducer structure that needs to be applied to the wave generator cam. The harmonic reducer includes harmonic finite element models such as the wave generator cam, flex spline and rigid spline;

[0042] ii. Import boundary conditions

[0043] After the virtual finite element model is obtained, it is imported into the finite element analysis program ABAQUS by the finite element preprocessor HYPERMESH, and the relative harmonic simulation model is established in the finite element analysis program ABAQUS, and the corresponding boundary conditions are establish...

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Abstract

The invention provides a novel wave generator cam design method. The method comprises the main steps of finite element model establishment, boundary condition introduction, analysis and calculation, fitting and the like. The outer edge curve of the cam designed by using the method conforms to a curve formula calculated by using the method instead of a standard ellipse, and the harmonic reducer ofthe wave generator cam designed by using the method can effectively reduce the problems of tooth surface abrasion, wave generator downward pressing, jumping, abnormal sound and the like.

Description

technical field [0001] The invention relates to the technical field of harmonic reducers, and more specifically, to a design method of a wave generator cam, a wave generator and a harmonic reducer. Background technique [0002] The harmonic reducer is mainly composed of three basic components: wave generator, flexible gear and rigid gear. It is a gear transmission that relies on a wave generator to assemble a flexible bearing to make the flexible gear produce controllable elastic deformation, and meshes with the rigid gear to transmit motion and power. Its applied disciplines: mechanical engineering (first-level discipline); transmission (second-level discipline); gear transmission (third-level discipline) Harmonic gear transmission reducer is a new type of reducer developed by using the principle of planetary gear transmission. [0003] Because the harmonic reducer has many advantages that other reducers do not have, such as small backlash, large range of single-stage redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50F16H49/00
CPCF16H49/001F16H2057/0087G06F30/3323G06F30/23G06F30/17G06F2119/06
Inventor 钟旭海沈晓龙
Owner SHENZHEN TONGCHUAN TECH
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