Gear clearance optimization design method comprehensively considering machining cost and movement stability

Abstract

The invention relates to a gear clearance optimization design method for a gear transmission system needing long-term operation such as wind power generation, which can effectively solve the influence of environmental factors such as system load and rotating speed and clearance coupling effect on clearance design. According to the method, the gap coupling model is included, the single-degree-of-freedom radial meshing force model is adopted, and the meshing force model with energy loss included is utilized, so that the solving result can better reflect the actual time domain and frequency domain characteristics of the system. According to the method, different radial clearances and gear backlashes are counted and solved by using a clearance dynamic model, and a reasonable gear clearance is selected by analyzing a spectrogram and comprehensively considering the motion stability and the machining difficulty and cost of different clearances of the gear. According to the invention, a traditional gear transmission system clearance design that a gear backlash and a radial clearance are selected according to a center distance is abandoned, and the influence on the clearance under working conditions of different rotating speeds, loads and the like is considered, so that the clearance is realized at lower cost, and good movement stability is realized.

Description

technical field [0001] The invention relates to a gear clearance optimization design method of a gear transmission system, which starts from the fact that there are multiple clearances in the actual gear transmission system, accurately describes the clearance and its coupling effect, uses the frequency domain characteristics to analyze the motion stability, and considers the gear clearance processing and assembly at the same time. According to the difficulty and cost of adjustment, the optimal design of the gear gap can be applied to the gap optimization field of the gear transmission system that needs long-term operation and mass production, such as wind power generation. Background technique [0002] Gear transmission systems are widely used in wind power and other fields, and their transmission performance directly affects the overall operating status of mechanical equipment. There are inevitably gaps between the components of the gear transmission system, and the mutual ...

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Problems solved by technology

[0004] At present, the research on the dynamics of the gear transmission system mostly simplifies the collision force, and the research on the gap coupling effect is still rare, so it is difficult to accurately describe the multi-gap coupling dynamic characteristics of the actual gear transmission system, and the optimal design of the gear gap cannot be solved. provide effective guidance

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