Large-torque bevel gear-double-cycloidal speed reduction device of rocket launching movable platform

Abstract

The invention relates to the technical field of reducers, in particular to a large-torque bevel gear-double-cycloidal speed reduction device of a rocket launching movable platform. The speed reduction device is characterized in that a secondary speed reduction device is composed of a bevel gear pair and a double-cycloidal transmission, wherein (A) the double-cycloidal transmission consists of a frame, an output shaft, supporting bearings, three cycloidal gears with a phase angle of 120 degrees, an eccentric bearing, a hypocycloid gear ring, a front frame, an input shaft and a W output mechanism, the input shaft is supported in the inner hole of the front frame through the bearing, the shaft extension end of the input shaft is linked with the eccentric bearing, and the input end of the input shaft is linked with a large bevel gear; the front frame is sequentially linked with the hypocycloid gear ring and the frame into a whole; and the output shaft is supported in the inner hole of the frame through the bearing; and (B) two symmetrical devices of small bevel gear shafts, which are meshed with the large bevel gear are supported in box wall holes of the front frame through the bearings, one small bevel gear shaft is linked with a motor, and the other small bevel gear shaft is linked with a manual handle. The large-torque bevel gear-double-cycloidal speed reduction device has the following beneficial effects: (a) the double reduction is realized, the axial size is short, the weight is light, and high degree of lightweight is realized; (b) the cycloidal gears have no broken teeth, and the three cycloidal gears have the transmission bearing capacity greater than that of a planet with only four planetary gears; and (c) the cost is reduced by 40-55%.

Description

【Technical field】 [0001] The invention relates to the technical field of reducers, and relates to a high-torque bevel gear-double pendulum reducer for a rocket launching platform. 【Background technique】 [0002] The deceleration device of the rocket launch platform must have high reliability, long service life, and high light weight. [0003] There are two kinds of background technology: [0004] (1) Close round movable gear reducer, the problem is: the maximum allowable torque is small, the efficiency is low, and η≤70%; [0005] (2) Two inventions of Zhengzhou Machinery Research Institute, "Support Arm Reducer for Rocket Launching Movable Platform" (20091072401.4) and "Small Volume and Large Torque Reducer for Rocket Launching Movable Platform" (200910172402.9), the main problems are: [0006] Bevel gear + three-stage planetary reduction, long axial dimension, complex structure, and low light weight. 【Content of invention】 [0007] The object of the present invention i...

AI Technical Summary

Problems solved by technology

[0004] (1) Close round movable gear reducer, the problem is: the maximum allowable torque is small, the efficiency is low, and η≤70%;

[0006] Bevel gear + three-stage planetary reduction, long axial dimension, complex structure, low light weight

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