Low-slide-rate gradient pressure angle gear and design method

A technology of pressure angle and slip rate, which is applied to belts/chains/gears, mechanical equipment, components with teeth, etc., and can solve problems such as high slip rate and poor stability

Inactive Publication Date: 2013-05-01
CHONGQING UNIV
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Problems solved by technology

It can solve the problems of high slip rate and poor stability of existing gears in the transmission process

Method used

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  • Low-slide-rate gradient pressure angle gear and design method
  • Low-slide-rate gradient pressure angle gear and design method
  • Low-slide-rate gradient pressure angle gear and design method

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Embodiment Construction

[0024] Please refer to Figure 1-2 , and in conjunction with the following descriptions to understand the low slip rate gradual pressure angle gear and design method provided by the present invention.

[0025] The low-slip ratio gradual pressure angle gear provided by the present invention comprises: an addendum circle part 1 , a tooth profile curve 2 and a dedendum circle part 3 . The tooth profile curve 2 is divided into the addendum section ab and the dedendum section bc by the pitch circle 4 of the gear. The equation of the tooth profile curve 2 of the present invention is derived based on the linear function of the pressure angle (the pressure angle refers to the angle between the normal direction of the tooth profile of the meshing point and the speed direction of the point), so that the pressure angle of the gear It can change linearly during the transmission process, and ensure that the pressure angle is optimized at any time during the gear transmission process, ther...

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Abstract

The invention provides a low-slide-rate gradient pressure angle gear and a design method. The gear comprises a tooth profile curve, wherein the tooth profile curve is divided by a pitch circle of the gear into a tooth top section and a tooth root section, and a pressure angle of the gear is changed in a linear way in the transmission process of the gear. The design method comprises the steps that the pressure angle is designed to be linearly changed in the transmission process of the gear when the pressure angle of the gear is designed. By adopting the gear and the design method, the advantages such as low slide rate of the gear and high transmission stability of the gear can be realized.

Description

technical field [0001] The invention relates to gear technology, in particular to a low-slip ratio gradual pressure-angle gear and a design method. Background technique [0002] A gear is a mechanical element with teeth on the rim that can continuously mesh to transmit motion and power. It is widely used in various production fields such as mechanical clocks and watches, engineering machinery, automobiles, ships, and aerospace. In the current gear structure, due to a pair of meshing gears, the linear speeds of the two tooth profiles at the same meshing point are not the same (except for nodes), so there is sliding between the tooth profiles, resulting in wear or gluing of the tooth surface. The ratio indicates the degree of relative sliding between the tooth surfaces. The sliding ratio is closely related to the curvature of the tooth profiles of the two gears. The curvature of the tooth profile can be reflected by the normal direction of the tooth profile. Since the normal d...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/17F16H55/08
Inventor 唐倩金晓峰唐金涛刘铁成
Owner CHONGQING UNIV
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