Superposition gear wheel with wide tooth form

A tooth profile and gear technology, applied in the direction of belts/chains/gears, components with teeth, portable lifting devices, etc., can solve the problem of precise design of tooth profile and complex manufacturing process, and difficulty in multiplying the torque strength of gears , No major breakthroughs and other issues have been achieved, and the production cost is low, which is conducive to thinning and miniaturization.

Inactive Publication Date: 2006-02-22
黄振强
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] (1) The tooth shape is narrow, making it difficult to double the torque strength that the gear can withstand
[0005] (2) The precise design and manufacturing process of the tooth profile are more complicated
[0007] Since the gear came out hundreds of years ago, the scientific and technological circles at home and abroad have done a lot of research experiments on the design and precise machining of the gear tooth profile. Although the gear transmission performance has been continuously improved and tends to the ideal limit, none of them have made a major breakthrough

Method used

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  • Superposition gear wheel with wide tooth form
  • Superposition gear wheel with wide tooth form
  • Superposition gear wheel with wide tooth form

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Embodiment 1

[0038] The gears can be stacked coaxially in series, with or without intervals in the middle, and can also be fixed together with connectors. The gears of this superposition mode are easy to forge processing and tooth profile repair, but the strength is not ideal enough. The other is the combined forging of two gears, the top of the tooth end and the corner point are trimmed for cutting, and the other parts can be considered for abrasive jet polishing. Regardless of whether it is an ordinary gear or a bevel gear with different radii, as long as the forging accuracy can meet the requirements, the latter should be preferred, which can further improve the strength.

Embodiment 2

[0040] For planetary gears, the node distance CD in formula (1.3), see Figure 6, should be changed to:

[0041]

[0042] It will result in less sliding distance and wear on the tooth flanks on the nodes.

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Abstract

This invention relates to a long gear superposition gear used in mechanical power actuating device, characterized in that its gear width is three times than the present gear width, and the moment strength a single gear can bear is nine times than the present gear. The design and manufacturing technique of the gear outline is simple with low cost, when it is used in the changeover speed gear of the mechanical power actuating device, it can save raw material above 60%.

Description

technical field [0001] Power transmission gears inside various mechanical equipment Background technique [0002] The existing gear tooth profiles designed and manufactured by the gear industry at home and abroad mainly include involute, arc and double arc gears. In recent years, my country has imported cycloidal bevel gears and hypoid gears from Europe and the United States, as well as harmonic gears designed by the former Soviet Union. Check the gear parts of recent imports and domestic high-end automobiles, and retrieve the invention and utility model patent announcements of China's F16H class since 1985 from the Internet, all of which belong to the gears of the above-mentioned contour tooth profile. [0003] The above-mentioned gears of various tooth profiles all have the following deficiencies: [0004] (1) The tooth shape is narrow, which makes it difficult to double the torque strength that the gear can withstand. [0005] (2) The precise design and manufacturing p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/17
Inventor 黄振强
Owner 黄振强
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