Gears and Transmission Mechanisms

A technology of gears and rims, which is applied in the field of gears and transmission mechanisms, can solve problems such as the inability to ensure uniform load on the tooth surface under working conditions, increase the amount of grinding modification, and reduce the hardness of the tooth surface, so as to reduce the amount of design modification and improve The strength and life of gears, and the effect of ensuring load balancing

Active Publication Date: 2019-07-19
CRRC QISHUYAN INSTITUTE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If the amount of gear meshing misalignment is large after loading, the amount of gear modification required will be relatively large. At present, gear modification is achieved by grinding teeth, and excessive grinding modification increases the amount of grinding teeth. time, it is easy to form a grinding boss at the root of the tooth and reduce the hardness of the tooth surface;
[0005] If the working conditions of the gears are changeable, for example, the use of heavy-duty vehicle transmission gears includes various working conditions such as starting, climbing, turning, and straight driving. It can be designed according to the amount of misalignment generated by one of the working conditions, so it cannot guarantee that the tooth surface of each working condition can be evenly loaded

Method used

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  • Gears and Transmission Mechanisms

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Please refer to figure 1 and figure 2 , the present embodiment provides a gear 100, which includes sequentially connected gear teeth 10, rim 20, web 30 and hub 40, with the plane perpendicular to the rotational axis 101 of the gear 100 as the reference plane 102, the web The plate 30 is inclined relative to the reference plane 102 .

[0038] The gear teeth 10, the wheel rim 20, the web 30 and the wheel hub 40 are fixedly connected or integrally formed.

[0039] The web 30 is arranged obliquely, and the web 30 of the gear 100 can be deformed under a load so as to have a certain degree of flexibility.

[0040] When the gear 100 is meshed and loaded, the web 30 can be deformed under force, reducing the amount of meshing misalignment of the gear 100, thereby reducing the amount of modification designed for the gear 100. Since the deformation of the flexible web 30 is related to the load of the working condition, that is, the load The greater the displacement, the greate...

Embodiment 2

[0094] Please refer to image 3 , this embodiment also provides a gear 100, the technical solution described in embodiment 1 is also applicable to this embodiment, and the disclosed technical solution in embodiment 1 will not be described again.

[0095] Specifically, the difference between this embodiment and Embodiment 1 is that the web 30 is provided with a plurality of through-hole groups, each through-hole group includes a plurality of through-holes 301, and the opening of the through-holes 301 is arc-shaped, and each through-hole A plurality of through holes 301 in the group are sequentially distributed in the direction from the hub 40 to the rim 20, the central angles corresponding to the plurality of through holes 301 in each through hole group are the same, and the plurality of through holes in each through hole group Through hole 301 is on the direction from wheel hub 40 to rim 20, and the width of through hole 301 gradually reduces, and in each through hole group, t...

Embodiment 3

[0104] This embodiment also provides a transmission mechanism, which includes the aforementioned gear 100 and has all the functions of the gear 100 .

[0105] The structure of the gear 100 can refer to Embodiment 1 or 2.

[0106] The transmission mechanism can use one of the above-mentioned gears 100, or two or more of the above-mentioned gears 100 can be selected.

[0107] The transmission mechanism has a better use effect under the conditions of heavy load, variable working conditions, and large meshing misalignment of the paired gears.

[0108] To sum up, the present invention provides a gear 100, which can deform under load, reduce the meshing misalignment and misalignment difference in each working condition, and reduce the design modification amount of the gear 100, thereby ensuring that the gear 100 The tooth surface is evenly loaded, and the strength and life of the gear 100 are improved.

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Abstract

The invention provides a gear and a transmission mechanism and belongs to the technical field of gears. The gear comprises gear teeth, a rim, a center plate and a hub which are sequentially connected,wherein a plane perpendicular to the rotation axis of the gear is taken as a datum plane, and the center plate is oblique relative to a datum plane. The gear can be deformed under the load action, the meshing misalignment quantities under various working conditions and the difference between the meshing misalignment quantities are reduced, and the design profiling quantity of the gear is reduced,so that the uniform load of tooth surfaces of the gear is guaranteed, the strength of the gear is improved, and the service life of the gear is prolonged. The transmission mechanism comprises the gear and has all functions of the gear.

Description

technical field [0001] The invention relates to the technical field of gears, in particular to a gear and a transmission mechanism. Background technique [0002] A gear is a mechanical element with gears on the rim that continuously mesh to transmit motion and power. The application of gears in transmission has appeared very early. At the end of the 19th century, the principle of generative gear cutting method and special machine tools and cutting tools using this principle appeared one after another. With the development of production, the stability of gear operation was paid more attention. [0003] The inventor finds in the research that traditional gears have the following disadvantages at least: [0004] If the amount of gear meshing misalignment is large after loading, the amount of gear modification required will be relatively large. At present, gear modification is achieved by grinding teeth, and excessive grinding modification increases the amount of grinding teet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H55/17F16H57/01
Inventor 颜力张鹏飞唐亮王文健
Owner CRRC QISHUYAN INSTITUTE CO LTD
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