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Method for detecting gear ratio and gear ratio crowned tooth sector machining precision

A technology of machining accuracy and speed change ratio, which is applied in the field of machining accuracy inspection of the speed change ratio and speed change ratio drum tooth rocker shaft gear sector for automobile steering gear, can solve the problem that the tooth profile deviation cannot be inspected directly, and achieves the goal of improving the machining quality. Effect

Pending Publication Date: 2021-12-21
宜昌长机科技有限责任公司
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Problems solved by technology

[0003] In order to solve the above technical problems, the present invention provides a method for inspecting the processing accuracy of the transmission ratio and the transmission ratio drum-shaped tooth sector. The present invention solves the problem that the existing transmission ratio and the transmission ratio drum-shaped To deal with the problem of deviation inspection, this method first obtains the vector diagrams of the ideal digital tooth shapes of various linear and nonlinear gear ratios and gear ratio drums as the inspection standard for the actual processed tooth shape, so as to determine the gear ratio and gear ratio drum tooth profile for direct inspection

Method used

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  • Method for detecting gear ratio and gear ratio crowned tooth sector machining precision
  • Method for detecting gear ratio and gear ratio crowned tooth sector machining precision
  • Method for detecting gear ratio and gear ratio crowned tooth sector machining precision

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Embodiment 1

[0049] see Figure 1-10 , variable speed ratio and variable speed ratio drum-shaped tooth sector processing is completed by using the comb-tooth cutter 3 to generate and process the blank of the rocker shaft gear fan. The design of the comb-tooth cutter 3 is based on the transmission ratio curve design, and its tooth profile The standard rack and comb cutters are different. When developing, the comb cutter 3 and the rocker shaft gear fan move according to the specified transmission ratio curve. For drum-shaped teeth, the center of the comb cutter 3 and the rocker shaft gear fan The distance will also change. The tooth shape of the rocker shaft tooth sector is the conjugate tooth shape of it and the comb-toothed cutter under a given transmission ratio, such as figure 1 . There is no common standard for this conjugate tooth shape. As long as any one of the tooth sector module, number of teeth, processing angle, transmission ratio curve or drum curve changes, the tooth shape wil...

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Abstract

The invention provides a method for detecting gear ratio and gear ratio crowned tooth sector machining precision, solves the problem that tooth profile deviation detection cannot be directly carried out on gear ratio and gear ratio crowned tooth profile machining precision in the prior art. The method is provided to obtain ideal digital tooth profiles of various linear and nonlinear gear ratios and gear ratio crowned teeth to serve as inspection standards of actual machining tooth profiles, and therefore the gear ratios and the gear ratio crowned tooth profiles are directly inspected.

Description

technical field [0001] The invention belongs to the technical field of gear processing, and more particularly relates to a method for checking the machining accuracy of a transmission ratio of an automobile steering gear and a gear fan of a drum-shaped gear rocker arm shaft. Background technique [0002] The rocker shaft gear fan is used in the steering gear of automobiles. In order to improve the steering performance, such as handling stability, steering portability, etc., the rocker shaft gear fan is usually designed with tooth shapes such as constant speed ratio, transmission ratio, and transmission ratio drum. , For heavy-duty vehicles, the gear fan of the rocker shaft uses a transmission ratio and a transmission ratio drum-shaped tooth in the majority. The impact on the performance of the automobile steering gear, the processing of the gear sector is the key, and its tooth shape error directly affects the operating performance of the automobile steering gear, and the to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/20G01M13/021
CPCG01B21/20G01M13/021
Inventor 钟瑞龄薛雷刚金绍兵代国辉陈保军孙伟
Owner 宜昌长机科技有限责任公司
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