Wave generator for harmonic driving and hollow harmonic driving reducer

Abstract

The invention provides a wave generator for harmonic driving and a hollow harmonic driving reducer, and relates to the technical field of reducers. The wave generator comprises a central shaft; the central shaft is provided with a through hole formed in the axial direction of the central shaft, and the through hole and the central shaft are coaxially arranged; a cam surrounding one circle in the circumferential direction of the central shaft is further arranged on the outer wall of the central shaft, and the cam and the central shaft are integrally formed; the outer wall of the cam is rotationally sleeved with a flexible bearing; and the outer wall of the central shaft is further rotationally sleeved with a second bearing and a third bearing, and the second bearing and the third bearing are located on the two sides of the flexible bearing correspondingly. According to the wave generator for harmonic driving and the hollow harmonic driving reducer, the rigidity of the wave generator isimproved on the basis of ensuring that the machining link is simplified and the cost is lowered, and thus the rigidity of the whole harmonic driving reducer is improved; and in addition, in order to collect a wire harness conveniently, the hollow through hole is formed in the axial direction of the central shaft, control, communication and power cables penetrate through the through hole, thus thewire harness is collected, and the overall structure is simple and concise.

Description

technical field [0001] The invention relates to the technical field of reducers, in particular to a wave generator for harmonic transmission and a hollow type harmonic transmission reducer. Background technique [0002] The harmonic transmission reducer is mainly composed of four basic components: wave generator, flexible gear, flexible bearing and rigid gear. Gear transmission that elastically deforms and meshes with rigid gears to transmit motion and power. Applied disciplines: mechanical engineering (first-level discipline); transmission (second-level discipline); gear transmission (third-level discipline), harmonic gear transmission reducer is a new type of reducer developed using the principle of planetary gear transmission, using harmonic The principle of gear transmission (referred to as harmonic transmission). [0003] Harmonic drive reducers are widely used in aviation, aerospace, energy, navigation, shipbuilding, bionic machinery, common ordnance, machine tools, ...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a wave generator for harmonic transmission and a hollow type harmonic transmission reducer, to solve the problem that the structure of the wave generator applied to the harmonic reducer in the prior art has relatively low rigidity. Technical issues with low and high manufacturing costs

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