Two-stage sine hammer-shaped pin roller movable tooth reduction gear

Abstract

The invention discloses a two-stage sine hammer-shaped pin roller movable tooth reduction gear which mainly comprises an input shaft, a first-stage wave generator inner ring, a first-stage wave generator outer ring, a first shell, first-stage hammer-shaped pin roller movable teeth, a second shell, second-stage hammer-shaped pin roller movable teeth, a third shell, a second-stage movable tooth frame, a second-stage wave generator outer ring, a first-stage movable tooth frame, a frame seal ring and the like. The reduction gear has the advantages of a pin roller movable tooth reduction gear and the advantages of a steel ball movable tooth reduction gear, and a wave generator and a central wheel in transmission with the pin roller movable teeth and the movable tooth frame in transmission withsteel ball movable teeth are ingeniously combined together through the hammer-shaped pin roller movable teeth; by means of five composite integrated type specially-made crossed roller bearings, the whole reduction gear has the smaller draw ratio, lighter weight and lower machining and manufacturing difficulty and meanwhile has the higher structural rigidity, higher bearing capacity and higher transmission efficiency; and the reduction gear can be designed in a parameterization and serialization mode, can be applied to various fields and helps the rapid rising of intelligent manufacturing, 5G communication and other industries.

Description

technical field [0001] The invention relates to the field of reduction machinery, and belongs to a movable tooth transmission device, in particular to a double-stage sinusoidal hammer roller movable tooth reducer. Background technique [0002] The known reducers on the market are all evolved from gears. The three common types are planetary reducers, RV reducers and harmonic reducers. There are too many components, the manufacturing is too complicated, and the precision and torque are not enough. Among them, although the RV reducer and the harmonic reducer have high precision, the accuracy retention and rigidity are not enough, the torque is small, and the service life is not long. With the rapid rise of smart manufacturing, smart home, and 5G communication industries, miniaturization and light weight will become a new development trend of precision reducers. Transmission devices used in robots, precision machine tools, aerospace and other precision servo mechanisms require ...

AI Technical Summary

Problems solved by technology

For example, the patent No. CN201910292297.6 proposes "A Double Shock Roller Movable Tooth Reducer with Backlash Elimination Mechanism". The two eccentric circular shocks are symmetrically arranged to eliminate inertial loads. Spring devices and tapered rollers are used. Movable teeth can eliminate axial clearance, but only one-stage reduction, it is difficult to achieve large reduction ratio transmission, and the axial structure is too large, not suitable for fields with limited space size

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