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Device and method for measuring radial deformation of flexible gear teeth of harmonic reducer

A harmonic reducer, radial deformation technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problem of low accuracy, long measurement time, and inability to measure the radial direction of the flexwheel tooth of the harmonic reducer Deformation and other issues to achieve the effect of improving accuracy and reliable measurement results

Pending Publication Date: 2021-11-02
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Problems solved by technology

This measurement method belongs to static measurement, and it cannot measure the radial deformation of the flex spline teeth in the motion state of the harmonic reducer, and the measurement time of this method is long and the accuracy is not high
At present, there is a dynamic measurement method based on laser ranging to measure the radial deformation of the flexspline, but the existing method can only measure the radial deformation of the flexspline cup in the meshing state or the radial direction of the flexspline tooth in the non-meshing state. Deformation

Method used

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  • Device and method for measuring radial deformation of flexible gear teeth of harmonic reducer
  • Device and method for measuring radial deformation of flexible gear teeth of harmonic reducer
  • Device and method for measuring radial deformation of flexible gear teeth of harmonic reducer

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Embodiment

[0042] Such as Figure 1 to Figure 8As shown in Fig. 1, a measuring device for the radial deformation of the flexspline tooth of a harmonic reducer includes a moving device body part and a parameter measuring part fixedly installed on a fixed base; each part will be described in detail below.

[0043] The body part of the motion device: the AC servo motor 2 is fixedly installed on the motor fixed base 3 fixed on the fixed base 1, and the torque speed sensor 15 is driven to rotate through the cross slider coupling 4, and the torque speed sensor 1 5 passes through the cross slide The block coupling 27 drives the harmonic reducer 9 for specific secondary processing to rotate, and the harmonic reducer 9 for specific secondary processing drives the torque speed sensor 2 16 to rotate through the flange coupling, and the torque speed sensor 2 16 passes through the cross The slider coupling 3 18 drives the magnetic powder brake 19 to rotate; the motor fixed base 3 is located in the mi...

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Abstract

The invention discloses a device and method for measuring radial deformation of flexible gear teeth of a harmonic reducer; a harmonic reducer rigid gear is processed to form an observation notch, and a laser displacement sensor is used for respectively measuring the radial deformation of flexible gear teeth at different positions along the central axis direction of the harmonic reducer during meshing movement of the harmonic reducer. According to the invention, the real radial deformation during meshing movement of a flexible gear can be measured, real and effective guidance parameters are provided for design and modification of the tooth shape of the rigid gear, improvement of the tooth shape design precision of the harmonic reducer rigid gear is facilitated, and the problem of partial interference between the flexible gear and the rigid gear of the harmonic reducer is solved. The method is of great significance in designing and optimizing the tooth shape of the rigid gear of the harmonic reducer.

Description

technical field [0001] The present invention relates to the technical field of gear tooth profile detection and design of harmonic reducers, in particular to a device and method for measuring the radial deformation of flexible gear teeth of harmonic reducers, which is suitable for guiding the design of rigid wheel tooth profiles of harmonic reducers , optimization, and solve the interference problem between the rigid wheel and the flexible wheel of the harmonic reducer. Background technique [0002] The harmonic reducer has the characteristics of large transmission ratio, high transmission precision, compact structure, and strong bearing capacity, so it is suitable for high-precision, high-load, and small installation space application scenarios, and is currently widely used in aerospace, industrial robots and other fields . The harmonic reducer is mainly composed of a wave generator, a rigid wheel and a flexible wheel. The wave generator is installed inside the flexspline...

Claims

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Application Information

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IPC IPC(8): G01B11/16
CPCG01B11/16Y02P70/10
Inventor 冯平法袁庆龙曾龙冯峰查慧婷曾广胜吴凯平张世林
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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