Cylindrical spur gear tooth trace modification method based on tooth surface stress edge action and gear skew deformation

A technology of force deformation and tooth surface, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of gear elastic deformation and cannot guarantee the quality of gear transmission, so as to improve fatigue strength and tooth surface Uniform load distribution and the effect of improving service life

Active Publication Date: 2017-10-17
SHANXI PINGYAO REDUCER
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Problems solved by technology

[0002] For gears under high-speed and heavy-load conditions, each component of the gearbox will be deformed by force, and the elastic deformation of the gear will be obv

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  • Cylindrical spur gear tooth trace modification method based on tooth surface stress edge action and gear skew deformation
  • Cylindrical spur gear tooth trace modification method based on tooth surface stress edge action and gear skew deformation
  • Cylindrical spur gear tooth trace modification method based on tooth surface stress edge action and gear skew deformation

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[0047] In order to make it easy to understand the technical means, innovative features, work flow, and implementation methods of the present invention to achieve the purpose and effect, the present invention will be further described below in conjunction with specific examples.

[0048] A tooth profile modification method for cylindrical spur gears based on tooth surface stress and edge action and gear skew deformation, including: (1) establishing a three-dimensional model of the gear based on UG; (2) importing the three-dimensional model of the gear into the finite element software Workbench for analysis in a certain Elastic deformation of gear teeth under working conditions, and "edge action" of tooth surface stress; (3) Establish the overall 3D model of the gearbox based on UG; (4) Import the 3D model of the gearbox into the finite element software Workbench to analyze the gear box under certain working conditions The gear box is deformed by force; (5) Analysis of the deform...

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Abstract

The present invention discloses a cylindrical spur gear tooth trace modification method based on tooth surface stress edge action and gear skew deformation. The method comprises the steps of: 1. establishing a three-dimensional gear model based on UG; 2. analyzing gear tooth elastic deformation and tooth surface stress "edge action" of the three-dimensional gear model under a certain working condition; 3. establishing an overall three-dimensional gear box model based on the UG; 4. analyzing gear box stressed deformation of the three-dimensional gear box model under a certain working condition; 5. analyzing deformation amounts and deformation characteristics of a tooth surface in different directions caused by comprehensive deformation of a gear box; 6. for the "edge action" and characteristics of influence of skew deformation in different planes of a gear on tooth surface stress, classifying all deformations, and considering all the deformations into tooth trace modification; and 7. considering the "edge action" during elastic deformation and skew deformation of a tooth surface in a normal plane to deduce a tooth trace modification curved line formula for tooth trace modification. The method provided by the present invention increases modification precision of the cylindrical spur gear that is operated under a high-speed heavy-load working condition, effectively improves the tooth surface load distribution condition, and prolongs the service life of gears.

Description

technical field [0001] The invention belongs to a gear modification method, in particular to a method for modifying the tooth direction of a cylindrical spur gear based on the "edge effect" of the tooth surface stress and the skew deformation of the gear. Background technique [0002] For gears under high-speed and heavy-load conditions, each component of the gearbox will be deformed by force, and the elastic deformation of the gears will be obvious. These deformation factors also have a great impact on the gear meshing. If the deformation is too large, the transmission quality of the gears cannot be guaranteed. In addition, because the stiffness of the gear at the edge of the tooth end is lower than that of the middle part, the contact stress distribution of the two tooth surfaces is relatively small near the middle position in the tooth width direction, and the contact stress near the two ends is relatively large, that is, the so-called "edge edge effect". Therefore, it i...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17
Inventor 张瑞亮王道勇王铁武志斐
Owner SHANXI PINGYAO REDUCER
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