A logarithm-based method for modifying the tooth profile of cycloidal gears and cycloidal gears and rv reducers
A cycloidal gear tooth and cycloidal gear technology, applied in instruments, components with teeth, electrical digital data processing and other directions, can solve the problems of complex process, inaccurate modification amount, low transmission accuracy of RV reducer, etc. To achieve the effect of simple modification method
Active Publication Date: 2019-12-24
HENAN UNIV OF SCI & TECH
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Problems solved by technology
[0005] The purpose of the present invention is to provide a logarithm-based method for modifying the tooth profile of a cycloidal gear, so as to solve the problems that the current method for modifying the tooth profile of a cycloidal gear is complicated, and the amount of modification is inaccurate, which leads to the low transmission accuracy of the RV reducer; At the same time, the invention also provides a cycloidal wheel and RV reducer
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[0039] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0040] The method for modifying the tooth profile of the cycloidal wheel of the present invention is to superimpose a modification amount in the normal direction of the normal line of the theoretical tooth profile of the cycloidal wheel. Processing accuracy requirements and transmission requirements, by changing the modification coefficient, the logarithmic base and the power of the logarithm to adjust the modification amount at each position point of the cycloidal gear profile, and then can control the shape of the modification function curve and the cycloidal gear The amount of modification at each position point of the tooth profile achieves the purpose of controlling the shape of the tooth profile curve of the cycloidal gear. The modification method of the present invention can make the tooth profile of the main working section of the mo...
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The invention relates to a cycloidal gear tooth profile modification method based on the logarithm, a cycloidal gear and an RV reducer and belongs to the technical field of cycloidal gear machining. The modification quantity in a logarithmic relationship with the cycloidal gear tooth profile generating line is superposed on a tooth profile curve of the standard cycloidal gear, the modification quantities of all position points of the cycloidal gear tooth profile can be adjusted by changing the modification coefficient, the logarithmic base and the logarithmic power, and further the curve shapeof the modification function and the modification quantities of all the position points of the cycloidal gear tooth profile can be controlled. The modification method is simple and easy to implement,the main working segment tooth profile, engaged with a pin gear, of the modified cycloidal gear is closer to the standard cycloidal gear tooth profile, certain engagement radial gaps exist between the non-main engagement segments close to the tooth tops and the tooth roots, manufacturing and mounting errors are compensated advantageously, storage of lubricating oil is facilitated, and the transmission property and the engagement quality of the cycloidal gear can be improved.
Description
technical field [0001] The invention relates to a logarithm-based method for modifying the tooth profile of a cycloidal wheel, a cycloidal wheel and an RV reducer, and belongs to the technical field of cycloidal wheel processing. Background technique [0002] The cycloid planetary gear system is a key component of the robot RV reducer. In the cycloid planetary gear system, the modification amount of the tooth profile of the cycloid and its modification curve equation determine the performance of the RV reducer. The standard cycloidal pin-wheel pair is conjugate meshing, and the transmission ratio remains constant during the transmission process. However, under actual working conditions, due to factors such as processing errors, temperature changes, and elastic deformation of the tooth surface, in order to ensure the transmission accuracy of the cycloidal pinwheel pair under normal meshing work, the gears in the cycloidal pinwheel meshing pair must be adjusted. The cycloidal...
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IPC IPC(8): F16H55/08F16H55/17F16H57/08G06F17/50
CPCF16H55/08F16H55/088F16H55/17F16H57/08G06F30/17
Inventor 邓效忠柯庆勋苏建新邓静
Owner HENAN UNIV OF SCI & TECH