Internal-vibration multi-crankshaft small-tooth difference speed reducer

Abstract

The invention relates to an internal-vibration multi-crankshaft small-tooth difference speed reducer, which comprises a hollow half shaft. An axial through hole is reserved on the middle part of the hollow half shaft. Two spaced supporting disks are correspondingly arranged on the outer periphery of the hollow half shaft. A high-speed shaft is arranged in the axial through hole of the hollow half shaft through a bearing, and one end of the high-speed shaft is connected with a sun gear. Two or more than two double-throw crankshafts are arranged along two sides or a circumferential direction between the two spaced supporting disks. A phase difference of two cranks of each double-throw crankshaft is 180 degrees, and corresponds to that of two planetary gears. The two ends of the double-throw crankshafts are supported on the supporting disks. One end of each double-throw crankshaft is extended from the supporting disk, and is connected with a corresponding synchronous gear and meshed with the sun gear. The two cranks of each double-throw crankshaft are matched with bearing holes formed on the two sides or the circumferential directions of the two planetary gears. The two planetary gears have equal tooth numbers, and are correspondingly meshed with low-speed gear rings sleeved outside the two planetary gears. The internal-vibration multi-crankshaft small-tooth difference speed reducer is high in speed ratio and transmission power and compact and simple in structure, and stably runs.

Description

technical field [0001] The invention relates to an internally oscillating multi-crankshaft and less-tooth-difference reducer with large speed ratio and output power, which can also be used as a speed-increasing device. It belongs to the technical field of mechanical transmission. Background technique [0002] Most of the existing gear transmission devices with few tooth differences are single crankshaft swing arm structure, the bearing force is large, the force of the output part is unreasonable, the entire transmission mechanism is large in size, heavy in weight, small in transmission power, high in manufacturing cost, and cost-effective Poor (see "multi-axis swing reduction mechanism", patent number: ZL200420017855.7). In the Chinese patent publication CN102352916A, a kind of "external swing multi-crankshaft and less tooth difference increaser / reducer" is disclosed. This device has the characteristics of large speed ratio and transmission power, and is compact in structur...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing gear transmission devices with few tooth differences are single crankshaft swing arm structure, the bearing force is large, the force of the output part is unreasonable, the entire transmission mechanism is large in size, heavy in weight, small in transmission power, high in manufacturing cost, and cost-effective Poor (refer to "multi-axis swing reduction mechanism", patent number: ZL200420017855.7)

In the Chinese patent publication CN102352916A, a kind of "external swing multi-crankshaft and less tooth difference increaser / reducer" is disclosed. This device has the characteristics of large speed ratio and transmission power, and is compact in structure and stable in operation. However, the internal ring gear of the device is Non-rotating body, difficult to process, and its volume is relatively large

Images