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RV speed reducer cycloidal gear contour profiling method based on deformation quantity compensation

A cycloidal gear tooth and deformation technology, which is applied in the direction of instruments, special data processing applications, electrical digital data processing, etc., can solve the problem of affecting the transmission stability and transmission accuracy, and does not consider the force and deformation of the cycloidal pin wheel meshing pair transmission, etc. problem, to achieve the effect of improving stiffness and eliminating transmission error

Inactive Publication Date: 2017-10-17
SOUTH CHINA UNIV OF TECH +1
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Problems solved by technology

However, these modification methods do not take into account the force and deformation of the cycloid pin wheel meshing pair transmission, especially when the RV reducer is applied under high load, the force deformation of the cycloid pin wheel meshing pair transmission will seriously affect Transmission stability and transmission precision

Method used

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  • RV speed reducer cycloidal gear contour profiling method based on deformation quantity compensation
  • RV speed reducer cycloidal gear contour profiling method based on deformation quantity compensation
  • RV speed reducer cycloidal gear contour profiling method based on deformation quantity compensation

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Embodiment Construction

[0048]The following figures will further illustrate the present invention in conjunction with the accompanying drawings and embodiments, and this embodiment should not be regarded as a limitation of the present invention.

[0049] In this embodiment, the cycloidal pin tooth meshing pair of RV40E is taken as an example, and its basic parameters are:

[0050] R z = 64; Z p =40;z g = 39; e = 1.3; r z =3.

[0051] Step 1: Use three traditional modification methods to obtain the cycloid tooth profile M

[0052] According to the method described in literature [1], solve to obtain the appropriate equidistant modification amount Δr rp =-0.105 and distance modification Δr p =-0.12

[0053] Step 2: Carry out force analysis on the meshing pair of cycloidal pinwheel, and calculate the tooth profile variable of cycloidal tooth profile

[0054] 1) Calculate the maximum load F of the tooth with the maximum force max

[0055]

[0056] Assuming that the RV reducer works under the ...

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Abstract

The invention discloses an RV speed reducer cycloidal gear contour profiling method based on deformation quantity compensation, and relates to the field of design and manufacturing of an RV speed reducer cycloidal gear. On the basis of the profiling gear contour determined by three conventional gear contour profiling methods, the extrusion deformation quantity of the cycloidal gear contour in the practical operation process is used as the profiling quantity to be compensated back into the gear contour of the cycloidal gear; the condition better conforms to the cycloidal gear contour profiling of an RV speed reducer applied to high-precision and high-load conditions; the transmission error of the RV speed reducer under the high-load condition can be further eliminated; and the rigidity of the speed reducer is improved. The method provided by the invention comprises the following steps of 1, obtaining the cycloidal gear contour M by using the three conventional profiling methods; 2, performing stress analysis on a cycloid pin gear engagement pair; and obtaining the cycloidal gear contour deformation quantity through calculation; and 3, using the deformation quantity as the profiling quantity to be compensated back into the cycloidal gear contour M for obtaining the final profiling contour.

Description

technical field [0001] The invention relates to the field of design and manufacture of a cycloidal wheel of an RV reducer, in particular to a method for modifying the tooth profile of a cycloidal wheel of an RV reducer based on deformation compensation. Background technique [0002] The RV reducer is a two-stage closed planetary transmission mechanism with few tooth differences. It has the advantages of small size, light weight, strong bearing capacity, large transmission ratio, long life, high precision, etc. It is currently widely used in precision transmission fields such as industrial robots. [0003] The cycloidal pinwheel meshing pair is the core component of the RV reducer. Theoretically, the conjugate tooth profile has no radial clearance. In order to ensure the smooth meshing, the formation of lubricating oil film, the convenience of disassembly and assembly, and the compensation of manufacturing errors, a certain clearance will be designed between the cycloidal ge...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17
Inventor 陆龙生张飞翔万珍平汤勇余鹏汤铠瑞
Owner SOUTH CHINA UNIV OF TECH
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