A tooth profile optimization method for a harmonic reducer rigid wheel

A technology of harmonic reducer and optimization method, applied in design optimization/simulation, geometric CAD, special data processing applications, etc., can solve the problem of poor transmission effect of rigid wheel tooth profile and flexible wheel tooth profile, and it is difficult to simulate the motion trajectory of flexible wheel , interference and other problems, to achieve the effect of optimized tooth shape, high meshing transmission efficiency and small backlash

Active Publication Date: 2022-06-21
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Problems solved by technology

The biggest problem with this method is that the substituted flexspline parameters mostly use empirical values ​​or are obtained through static measurement methods, and the flexspline parameters obtained by the above two methods are not accurate, so it is difficult to simulate the flexspline motion track close to the real situation. The transmission effect of the rigid wheel tooth shape and the flexible wheel tooth shape obtained by the envelope is poor in the actual meshing process, and even the phenomenon of interference between the flexible wheel and the rigid wheel may occur

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  • A tooth profile optimization method for a harmonic reducer rigid wheel
  • A tooth profile optimization method for a harmonic reducer rigid wheel
  • A tooth profile optimization method for a harmonic reducer rigid wheel

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Embodiment Construction

[0033] like figure 2 As shown in the figure, a method for optimizing the tooth profile of a rigid wheel of a harmonic reducer specifically includes the following steps:

[0034] The first step is to form an observation gap 94 with a specific shape on the rigid wheel 93 of the harmonic reducer 9 by secondary cutting processing;

[0035] In the second step, the machined harmonic reducer 9 is installed into the measuring device for the radial deformation of the flex wheel teeth of the harmonic reducer. Turn on the device switch, calibrate the position of the point laser displacement sensor 10 through the three-degree-of-freedom displacement stage 13, so that the point laser displacement sensor 10 can measure normally, and is fixed on the open end of the rigid wheel observation gap 94;

[0036] In the third step, the AC servo motor 2 is controlled to rotate by the controller 22, and the point laser displacement sensor 10 records data and then transmits and stores it to the indus...

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Abstract

The invention discloses a method for optimizing the tooth shape of a rigid wheel of a harmonic reducer. The real parameters of the flexible wheel of the harmonic reducer under the meshing motion state are obtained by using a measuring device for the radial deformation of the tooth of the flexible wheel of the harmonic reducer. , through MATLAB simulation to obtain the motion trajectory that highly fits the real flexspline motion, take the envelope of the flexspline trajectory, and use multiple arcs to fit the envelope based on the envelope to obtain the tooth profile of the optimized rigid spline. The present invention can effectively optimize the tooth profile of the rigid wheel of the harmonic reducer. The side clearance between the rigid wheel and the flexible wheel optimized by the present invention is smaller, the meshing transmission efficiency is higher, the force on the tooth surface is more uniform, and the service life is longer. The flex spline and the rigid spline have better meshing performance, better tooth surface contact stress conditions, and prevent interference with the flex spline due to unreasonable tooth shape design of the rigid spline.

Description

technical field [0001] The invention relates to the technical field of the tooth profile design of the harmonic reducer, in particular to a method for optimizing the tooth profile of the harmonic reducer, which is suitable for optimizing the tooth profile of the harmonic reducer and reducing the backlash of the reducer. Improve the meshing performance of the harmonic reducer, so that the force is more uniform when the flexible wheel meshes with the steel wheel. Background technique [0002] The wave reducer has the characteristics of large transmission ratio, high transmission accuracy, compact structure and strong bearing capacity, so it is suitable for high-precision, high-load, small installation space application scenarios, and is currently widely used in aerospace, industrial robots and other fields. The harmonic reducer is mainly composed of wave generator, rigid wheel and flexible wheel. The wave generator is installed inside the flexible wheel, and the flexible whee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06F30/20
CPCG06F30/17G06F30/20
Inventor 冯平法袁庆龙曾龙冯峰查慧婷曾广胜吴凯平张世林邱楚锋
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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