Tapered rolling cycloid planetary transmission mechanism

Abstract

A tapered rolling cycloid planetary transmission mechanism comprises an input component, an output component and a fixed inner toothed ring; first tapered teeth are evenly distributed on the inner circumference of the inner toothed ring; the input shaft is provided with an eccentric shaft which is connected with one end of a cycloid wheel through a bearing; the other end of the cycloid wheel is connected with the output component at the dead center position, and an eccentric angle is formed between the connecting line of the midpoint of the axis of the eccentric shaft and the dead center position and the axis of the input shaft; second tapered teeth capable of being engaged with the first tapered teeth are evenly distributed on the periphery of the cycloid wheel supported on the eccentricshaft, and the number of the first tapered teeth is larger than that of the second tapered teeth; the included angle formed by the engagement center line of the first and second tapered teeth and theaxis of the input shaft is equal to the eccentric angle; the cycloid wheel and the output component are provided with opposite semicircular slots, and the two semicircular slots form a complete circular hole; and connecting balls are disposed in the circular hole so that the output component and the cycloid wheel can be universally rotated and synchronously rotated, and the circle centers of the sphere center distribution circumferences of the connecting balls coincide with the dead center position.

Description

technical field [0001] The invention relates to a cycloidal pinwheel planetary transmission mechanism, in particular to a conical rolling cycloidal planetary transmission mechanism. Background technique [0002] The latest statistics from the China Robot Industry Alliance show that in 2016, the market share of domestic robots was 32.7%. In other words, 67.3% of the domestic robot market is occupied by a few foreign giants. Why do imported robots occupy such a large market in China? [0003] In the composition of the robot, the reducer is the core component, and the cost ratio is also the highest, up to 35%. At present, there are mainly two types of reducers used in the field of robots, one is RV reducer, and the other is harmonic reducer. The former is generally placed on heavy load positions such as the upper arm and shoulder due to its higher rigidity; while the latter is placed on the forearm and wrist. [0004] In the past 30 to 40 years, Japanese companies have almo...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a cycloidal planetary reducer with excellent performance, simple structure and low manufacturing cost, which can completely replace the imported reducer, in view of the existi...

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