Cycloid planetary speed reducer of rapid point machine

Abstract

The cycloid planetary speed reducer of a rapid point machine of the invention belongs to the technical field of mechanical drive technique, mainly comprising a uniform tray, a pin gear shell, a left cycloid gear, a right cycloid gear, pins, an input shaft, an output shaft, steady bearings and a dual-eccentric bearing. The uniform tray is supported on the end cap of the shell through the bearing, and the output shaft is supported by two ends of two bearings with different external diameters. The right end of the input shaft is supported on the inner surface of the centre bore of the output shaft, and the left end of the input shaft is supported on the inner surface of the centre bore of the uniform tray. When the input shaft rotates, the left cycloid gear and the right cycloid gear with 180 degrees phase difference take planetary motion through the dual-eccentric bearing. The uniform tray is used to equalize the bearing force of each pin, and the supporting of the output shaft is changed from the cantilever to the two ends to significantly enhance the strength and the rigidity of the entire output mechanism. The direct fixing of the pin gear shell and the shell is changed to cylindrical surface movable fit to play the function of overload protection. The invention has the characteristics of small size, light weight, large bearing capacity, steady transmission, high transmissionefficiency and long service life.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission, and relates to a pin pendulum planetary reducer for a fast switch machine. Background technique [0002] In the existing general-purpose pin pendulum planetary reducer, the output shaft is a cantilever structure, and the pins in the output mechanism are not connected with each other, and the force is very uneven, resulting in weak strength and rigidity, which affects the bearing capacity and working life; It is fixedly connected with the casing and has no overload protection device; in addition, for the ZD6 series switch machines currently in use, the input shaft of the reducer and the motor shaft are driven by involute gears, and the axes of the two shafts are not on the same axis. The structure is complex and the volume is large; at the same time, the output shaft support bearing lacks an axial positioning structure, cannot bear the axial force, and at the same time, the axial p...

AI Technical Summary

Problems solved by technology

[0002] In the existing universal pin pendulum planetary reducer, the output shaft is a cantilever structure, and the pins in the output mechanism are not connected with each other, and the force is very uneven, resulting in weak strength and rigidity, which affects the bearing capacity and working life; It is fixedly connected with the casing and has no overload protection device; in addition, for the ZD6 series switch machines currently in use, the input shaft of the reducer and the motor shaft are driven by involute gears, and the axes of the two shafts are not on the same axis. The structure is complex and the volume is large; at the same time, the output shaft support bearing lacks an axial positioning structure, cannot bear the axial force, and the axial positioning is unreliable

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