Double-disc cycloid cam planet driving device

Abstract

The invention relates to a dual round disc cycloid wheel planet transmission device, providing a planetary reducer with fewer teeth differ, which can solve the problems of present cycloid planet reducer which can not bear bigger external axial force and need special frame with worse dynamic balance property and lower N-N transmission efficiency. The invention comprises a main body, an input axle, a roller, needle teeth, and a sleeve, left and right round discs, cycloid planet wheel, teeth sheath, and pin sheath and connection elements. Wherein, the dual-eccentric bearings, the pin sheath, the teeth and the teeth sheath are inside the cylinder hole which is in the middle of main body between the left and right round discs; the needle wheel formed by the needle teeth, the teeth sheath, and the main body can form a cycloid planet meshed pair with the cycloid planet wheel. The invention has better bearing capacity, especially bearing bigger external axial force with better dynamic balance property, easy production, N-type transmission, a meshed pair and a slit adjustable device. It can attain high transmission accuracy and efficiency while it can realize coaxial output since the dual round disc output element has symmetry functions.

Description

Technical field: [0001] The invention relates to a planetary reducer with small tooth difference, which is a precision transmission and power transmission device. Background technique: [0002] On May 14, 2003, Chongqing University submitted an invention patent application to the State Intellectual Property Office with the "Conical Cycloid Planetary Transmission Device", the application number is 03117879.0, and was granted the invention patent on February 16, 2005. The device includes a main body, a right support fixedly connected with the main body, a pre-tightening member located at the right end of the right support, the left end of the eccentric shaft equipped with a balance weight is supported by a bearing installed in the through hole at the left end of the main body, and its right end is supported by a bearing installed in the output member. The bearing in the blind hole at the left end is supported, and the output member is supported by the bearing and seal in the r...

AI Technical Summary

Problems solved by technology

The reducer has the following disadvantages: the conical meshing pair is difficult to bear a large external axial force, and requires a special frame support; the device needs to be equipped with a special balance block, which has poor dynamic balance characteristics and a complicated structure; The semi-buried tooth structure of the arc internal gear causes a large slip of the meshing pair, and the N-N transmission form reduces its transmission efficiency; in addition, the semi-buried tooth structure of the conical arc internal gear is difficult to manufacture, and there is no relatively mature one at present. processing methods

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