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Spiral bevel gear tooth surface curvature interference detection method

A technology of spiral bevel gear and interference inspection, which is applied in the direction of measuring devices and instruments, and can solve problems such as the inability to analyze the meshing performance of two tooth surfaces

Inactive Publication Date: 2015-02-04
HENAN UNIV OF SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, the three-coordinate detection of the tooth surface in the gear measurement center has become an important means of tooth surface detection. However, this tooth surface detection is only for the measurement and analysis of the tooth surface accuracy of a single gear, and cannot analyze the meshing performance of the two tooth surfaces.

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  • Spiral bevel gear tooth surface curvature interference detection method
  • Spiral bevel gear tooth surface curvature interference detection method
  • Spiral bevel gear tooth surface curvature interference detection method

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Embodiment Construction

[0028] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0029] Such as figure 1 Shown is the flow chart of the spiral bevel gear tooth surface curvature interference inspection method of the present invention, as can be seen from the figure, the inspection method includes the following steps:

[0030] (1) Establish the theoretical tooth surface equation of the large wheel of the spiral bevel gear and the reference tooth surface of the small wheel: establish the theoretical tooth surface equation of the large wheel according to the basic parameters and processing parameters of the spiral bevel gear, and the wheel blank parameters and processing parameters are shown in Table 1 and Table 1. As shown in 2, the gear tooth surface equations of the large wheel are respectively established through coordinate transformation and meshing equation establishment:

[0031] r 2 = r 2 (θ g ,φ g )

[0032] In...

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Abstract

The invention discloses a spiral bevel gear tooth surface curvature interference detection method. Only by providing coordinate values of a plurality of discrete points of two tooth surfaces, tooth surface interference position can be accurately judged and actually-measured engagement position can be prejudged, and efficient and convenient and fast tooth surface curvature interference detection is provided for a gear pair, so that the technical problem that the gear pair can only carry out pairing rolling inspection on a rolling inspection machine to detect the tooth surface curvature interference is solved; not only the position of tooth surface interference can be accurately judged, but also the actually-measured engagement position can be prejudged. The detection method helps to expand the detection function of a gear measurement center without carrying out rolling inspection on the gear rolling inspection machine; whether the two tooth surfaces have tooth surface curvature interference can be judged directly according to the position vector and normal vector of the tooth surface points measured by the gear measurement center; and if interference occurs, the position of the interference can be judged.

Description

technical field [0001] The invention belongs to the technical field of gear meshing analysis and testing, and in particular relates to a curvature interference testing method of a spiral bevel gear tooth surface. Background technique [0002] No curvature interference at the point of contact is a necessary condition for correct meshing when the two tooth surfaces mesh. During gear machining, large tooth surface errors are caused by factors such as machine tool errors, installation errors, and heat treatment deformation. When two paired gears mesh, tooth surface curvature interference occurs and cannot mesh correctly. [0003] The tooth surface curvature interference test is currently only analyzed and calculated in the tooth surface design stage, and the judgment is made by calculating the relative normal curvature and relative short-range torsion of the meshing points of the two tooth surfaces. This method is based on the judgment method of the local topological structure. ...

Claims

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Application Information

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IPC IPC(8): G01B21/00G01B21/20
CPCG01B21/00G01B21/20
Inventor 曹雪梅孙宁刘数
Owner HENAN UNIV OF SCI & TECH
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