Bevel gear with double-point contact tooth profile curve

A technology of tooth profile curves and helical gears, applied to components with teeth, belts/chains/gears, hoisting devices, etc., can solve the problem of poor load-carrying capacity, inability to combine involute gears and arc gears, and inability to Satisfaction and other issues

Inactive Publication Date: 2017-01-11
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the problems of relative sliding and poor load-carrying capacity of the meshing tooth surfaces of involute gears, many scholars have carried out research and development of new gear transmissions.
Patent ZL201010508097.9 discloses a helical gear with an involute arc profile and its meshing pair. Formed by spiral motion; patent ZL97109330.X discloses a meshing gear, whose convex tooth profile curve is an involute, and the concave tooth profile curve is a transition curve, that is, half of the tooth height is an involute line, and the other half is a transition line. curve,

Method used

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  • Bevel gear with double-point contact tooth profile curve
  • Bevel gear with double-point contact tooth profile curve
  • Bevel gear with double-point contact tooth profile curve

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Embodiment Construction

[0026] figure 1 It is a schematic diagram of the normal section tooth profile curve of a specific embodiment of the gear of the present invention. In the helical gear with double-point contact tooth profile curve of the present invention, the internal tooth profile curve of the normal plane of the helical gear includes convex arc curve segment 1, gradual Open line curve segment 2 and concave arc curve segment 3, the outer end of the involute curve segment 2 is smoothly and tangentially connected with the starting end of the convex arc curve segment 1, and the inner end of the involute curve segment 2 is connected to the concave circle The outer ends of arc curve segment 3 are connected smoothly and tangentially. The helical gear with double-point contact tooth profile curve of the present invention has separability of center distance, high bending and contact strength, high transmission efficiency, low vibration noise, high reliability, etc. characteristics; and the gear of th...

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Abstract

The invention discloses a bevel gear with a double-point contact tooth profile curve. A normal-plane tooth profile curve of the bevel gear comprises a convex circular-arc curve section, an involute curve section and a concave circular-arc curve section; the outer end of the involute curve section is smoothly and tangentially connected with the initiating end of the convex circular-arc curve section; and the initiating end of the involute curve section is smoothly and tangentially connected with the outer end of the concave circular-arc curve section. In a transmission process, the novel bevel gear disclosed by the invention has the advantages such as a divisible involute gear center distance, simple manufacturing, convenient measuring, great circular-arc gear contact strength and good running-in property, has transmission performance which is greatly improved in comparison with expected transmission performance of an existing involute gear, and is of great significance on realizing lightweight of the gear and a transmission device thereof.

Description

technical field [0001] The invention relates to a gear, in particular to a helical gear with a double-point contact tooth profile curve. Background technique [0002] Involute gear transmission has a wide range of industrial applications due to the separability of its center distance and the convenience of manufacture and measurement. In view of the problems of relative sliding and poor load-bearing capacity of the meshing tooth surfaces of involute gears, many scholars have carried out research and development of new gear transmissions. Patent ZL201010508097.9 discloses a helical gear with an involute arc profile and its meshing pair. Formed by spiral motion; patent ZL97109330.X discloses a meshing gear, whose convex tooth profile curve is an involute, and the concave tooth profile curve is a transition curve, that is, half of the tooth height is an involute line, and the other half is a transition line. curve, and the meshing method is point-line meshing; patent ZL991143...

Claims

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Application Information

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IPC IPC(8): F16H55/17F16H55/08
Inventor 梁栋彭帅覃思玲张录合安来强
Owner CHONGQING UNIV
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