Method for detecting backlash control size of rigid wheel for harmonic drive

A technology to control the size and detection method, which is applied in the direction of machine gear/transmission mechanism testing, mechanical clearance measurement, and mechanical component testing, etc. It can solve problems such as low accuracy, wide quality fluctuation range, and low production efficiency of harmonic gears. , to achieve accurate and more effective control results and avoid errors

Pending Publication Date: 2021-02-02
GUIZHOU QUNJIAN PRECISION MACHINERY
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Problems solved by technology

However, the rigid wheel is difficult to align the extreme position of the two measuring rods when measuring the internal gear, and the accuracy of the measurement is not high
In addition, the cross-rod distance measurement method only reflects the size of a specific section, and cannot comprehensively...

Method used

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  • Method for detecting backlash control size of rigid wheel for harmonic drive
  • Method for detecting backlash control size of rigid wheel for harmonic drive
  • Method for detecting backlash control size of rigid wheel for harmonic drive

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Embodiment

[0027] The detection object in this example is figure 1 In the shown harmonic gear transmission mechanism, the harmonic transmission is mainly composed of rigid spline 1, flexible spline 2 and wave generator 3. The inner circle of the rigid spline 1 is provided with internal teeth, the outer circle of the flex spline 2 is provided with external teeth, and the flex spline 2 is set on the oval wave generator 3. Under the action of the wave generator 3, the flex spline 2 undergoes controllable deformation. Make the flexible spline external teeth 5 near the long axis 4 of the wave generator fully mesh with the rigid spline internal teeth 6; the flexible spline external teeth 5 near the short axis 7 of the wave generator completely disengage from the rigid spline internal teeth 6; The outer tooth 5 of the flex spline and the inner tooth 6 of the rigid spline between the major axis and the short axis are gradually disengaged or engaged.

[0028] The transmission meshing backlash be...

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Abstract

The invention discloses a method for detecting the backlash control size of a rigid wheel for harmonic drive. According to the method, two or three measuring blocks are adopted to be matched with a two-claw or three-claw inside micrometer for detection; and during measurement, a measuring block is adhered to each of the inner teeth of the rigid gear at an interval of 180 degrees or 120 degrees, and then the outer edge of the measuring head of the two-jaw or three-jaw inside micrometer is in contact with the inner wall of the measuring block to measure the control size H of the rigid gear whenthe harmonic gear is reasonably engaged with the backlash. According to the invention, the width of the measuring block is far greater than the tooth pitch of the harmonic gear, so that the measuringblock does not need to be strictly kept at equal intervals of 180 degrees or 120 degrees, and only the measuring contact of the inside micrometer needs to be ensured to be in contact with the inner wall of the measuring block; any position can be measured and is not limited by a rigid gear tooth groove or a tooth crest; comprehensive detection of the tooth surfaces of the rigid gear and the flexible gear can be realized, and errors caused by single-section detection are avoided; and the space position occupied by the flexible gear in actual assembly is simulated, and the control result is moreaccurate and effective.

Description

technical field [0001] The invention relates to a detection method for the side clearance control dimension of a rigid wheel for harmonic transmission, and belongs to the technical field of mechanical transmission detection. Background technique [0002] Harmonic drive is mainly composed of rigid wheel, flexible wheel and wave generator. The inner circle of the rigid spline is provided with internal teeth, and the outer circle of the flexible spline is provided with external teeth. The flexible spline is set on the oval wave generator, and the flexible spline undergoes controllable deformation under the action of the wave generator, so that The outer teeth of the flexible spline near the axis are completely meshed with the inner teeth of the rigid spline; the outer teeth of the flexible spline near the short axis of the wave generator are completely disengaged from the inner teeth of the rigid spline; the outer teeth of the flexible spline between the major axis and the shor...

Claims

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Application Information

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IPC IPC(8): G01M13/021G01B5/16
CPCG01B5/166G01M13/02
Inventor 贺志斌何永加
Owner GUIZHOU QUNJIAN PRECISION MACHINERY
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