External swing speed increasing/reducing device with less teeth difference and more crankshafts

Abstract

The invention relates to an external swing speed increasing / reducing device with less teeth difference and more crankshafts, and the device comprises a box and a low speed shaft, wherein gears are arranged on the low speed shaft and equipped with two gear rings with same teeth number on the axial direction of the outboards of the gears, and the phase difference, in a circumferential direction, ofthe two gear rings is 180 degrees; two or more two-throw crank shafts with 180-degree phase difference in the circumferential direction are arranged at both sides or in the circumferential direction of the two gear rings; a high speed shaft, which is a two-throw crank shaft with 180-degree phase difference in the circumferential direction, is arranged at the middle part at the other side of the box; and a transmission two-throw crank shaft connected with the two-throw crank shaft is arranged at both sides or in the circumferential direction of the high speed shaft, and two cranks of the transmission two-throw crank shaft are respectively connected with two cranks of the high speed shaft through wobble plates. The external swing speed increasing / reducing device has the advantages of compact structure, reasonable arrangement, small volume, light weight and large single-level drive ratio. The external swing speed increasing / reducing device can realize non-clearance transmission with highprecision, has the characteristics of wide scope of transmission power and torsion, high transmission efficiency and precision, stable operation and high cost performance, and is especially suitable for high-power and large-torsion speeders.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission, and in particular relates to an externally swinging multi-crankshaft and less-tooth-difference increaser / reducer, which can be used as a speed-up or speed-down device. technical background [0002] Gearboxes and reducers are widely used mechanical transmissions. At present, reducers of various structures are widely used. Relatively speaking, the use amount of the speed increaser is smaller (mainly used in high-power wind power generation equipment), and the theory and invention of the speed increaser are also lacking. [0003] In principle, using the reducer in reverse is a speed increaser. However, if it is simply used in reverse, the impact and vibration of the ordinary speed increaser will be relatively large, the life of the pinion will be short, and the teeth will be easily broken. Since the quality of the large and small gears of the small-tooth-difference transmission me...

AI Technical Summary

Problems solved by technology

Most of the existing gear transmission devices with small tooth difference are single crankshaft swing arm structure, the bearing force is large, the force of the output mechanism 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)

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