Full-tooth-width line-contact helical bevel gear tooth structure

A spiral bevel gear, line contact technology, applied in the direction of gear lubrication/cooling, belt/chain/gear, components with teeth, etc., can solve the problem of poor oil-containing performance of tooth surface lines, affecting gear transmission performance, poor bearing capacity, etc. problem, to achieve the effect of good oil-containing performance of the tooth surface, low noise, and improved transmission performance

Inactive Publication Date: 2014-03-26
林菁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the technical defects of the existing traditional spiral bevel gears which are point-contact meshing gears, which have low coincidence degree, poor load-carrying capacity, poor oil-containing performance of tooth surface lines, poor lubrication, and affect gear transmission performance. A full tooth width line contact spiral bevel gear tooth structure, this kind of gear is full tooth width line contact during transmission, high coincidence, stable transmission, low noise, high load capacity, good oil content on the tooth surface, easy to form lubricating oil film, Reduce the friction and wear of the tooth surface, and comprehensively improve the transmission performance of the helical gear

Method used

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  • Full-tooth-width line-contact helical bevel gear tooth structure
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  • Full-tooth-width line-contact helical bevel gear tooth structure

Examples

Experimental program
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Effect test

Embodiment 1

[0023] as attached figure 2 As shown, a full tooth width line contact spiral bevel gear tooth structure is characterized in that: the tooth surface of the spiral bevel gear is a full arc along the tooth length direction;

[0024] The tooth surfaces on both sides of the spiral bevel gear teeth along the tooth length direction are convex full arcs on one side, and the other side tooth surfaces are concave full arcs, which are convex along the tooth height direction. surface.

[0025] The arc of the tooth surface is a circular arc or an involute or a cycloid or a logarithmic helix.

[0026] as attached image 3 and 4 As shown, the texture of the tooth surface of the gear tooth is a well-shaped texture composed of shallow narrow grooves along the tooth length direction and intersecting shallow narrow grooves along the tooth height direction,

[0027] The well-shaped texture is rectangular or rhombus.

[0028] The distance between the grooves of the well-shaped pattern is 0.0...

Embodiment 2

[0030] as attached Figure 5 As shown, the texture on the tooth surface of the gear tooth can also be a closed circular curved texture.

[0031] The distance between the closed ring-shaped curved grooves is 0.01-3mm, and the depth of the grooves is 0.005-0.05mm.

[0032] The production process of the tooth surface with full tooth width contact of the gear is to first use the traditional spiral bevel gear milling machine to rough the tooth groove, and then generate the NC machining program according to the point data of the tooth surface and use the NC machining center to finish the tooth surface , in order to obtain tooth flanks with full tooth width contact. Among them, the well-shaped texture is processed by the numerical control machining center on the tooth surface, and then the tooth surface is processed by the tooth surface enhancement process (such as polishing, grinding, shot peening, etc.) to ensure the tooth surface is smooth.

[0033] The present invention provide...

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PUM

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Abstract

The invention discloses a full-tooth-width line-contact helical bevel gear tooth structure which is characterized in that the surface of a helical bevel gear tooth is a full arc in the tooth length direction. According to the full-tooth-width line-contact helical bevel gear tooth structure, an originally-considered point-contact helical bevel gear is changed. Full-tooth-width line contact is achieved in transmission, the contact area is higher than 90%, the coincidence degree is high, transmission is stable, noise is low, the bearing capacity is high, the tooth-surface oil-containing performance is good, a lubricating oil film can be easily formed, friction and abrasions on the tooth surface are reduced, and the transmission performance of a helical gear is improved comprehensively.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission parts manufacturing, and in particular relates to a gear, in particular to a full tooth width line contact spiral bevel gear. Background technique [0002] Bevel gears are gears whose indexing surface is conical, also called bevel gears. Bevel gear transmission is used to transmit motion and power between two intersecting shafts, and the angle between the two shafts can be arbitrary. The most widely used in mechanical transmission is the straight bevel gear transmission with the intersection angle of two shafts being 90°. The single-stage transmission ratio of the bevel gear can reach 6, the maximum can reach 8, and the transmission efficiency is generally 0.94-0.98. Bevel gears are divided into straight bevel gears, helical bevel gears, and curved bevel gears. Straight bevel gears have small axial force and high noise, and are used for low-speed transmission (<5m / s); helical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/08F16H57/04
CPCF16H55/08F16H55/17F16H57/043
Inventor 林菁
Owner 林菁
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