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Plastic cone gear

A technology of bevel gears and plastics, applied in the direction of belts/chains/gears, components with teeth, portable lifting devices, etc., can solve the problem that the transmission performance of the gear transmission system cannot reach the best, and achieve light weight and broad application prospects , the effect of easy molding

Inactive Publication Date: 2011-08-17
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the gears rotate, the transmission performance of the gear transmission system cannot be optimal due to the difference in lubrication conditions, meshing mechanisms, and load-carrying capacity between the meshing side and the non-meshing side.

Method used

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  • Plastic cone gear
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Examples

Experimental program
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Embodiment Construction

[0017] See Figure 1-2 , The tooth profile of the plastic bevel gear of the present embodiment mainly includes tooth top 1, dedendum 3, meshing side tooth profile 4, non-meshing side tooth profile 5 (large and small end tooth profiles have the same structure).

[0018] The principle of tooth profile surface generation is as follows:

[0019] with r bd Make the meshing side base conical surface of the plastic bevel gear as the radius of the bottom surface, and there is a first occurrence surface Q that is tangent to the meshing side base conical surface, and a line segment is formed when the first occurrence surface Q is tangent to the meshing side base conical surface AD, where point A is on the bottom surface of the meshing side base cone, and point D is the apex of the meshing side base cone; when the first occurrence surface Q performs pure rolling without sliding along the meshing side base cone surface, the Trajectory AA 1 It is the tooth profile surface of the meshing...

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Abstract

The invention provides a plastic cone gear which can increase the fatigue resistance strength of a dedendum and basically does not affect the impact resistance performance of the dedendum; the plastic cone gear is characterized in that a meshing pendant group circular conical surface is worked out by taking rbd as a radius, a first occurrence surface is tangent to the meshing side base conical surface, and a line segment AD is a tangent line of the first occurrence surface and the meshing side base conical surface. When the first occurrence surface purely rolls without slipping along the meshing side base conical surface, the locus of a point A is a meshing side tooth profile curved surface of the plastic cone gear. A non-meshing side base conical surface is worked out by taking rbc as a radius, a second occurrence surface is tangent to a non-meshing side base conical surface, and a line segment BC is a tangent line of the second occurrence surface and the non-meshing side base conical surface. When the second occurrence surface purely rolls without slipping along the non-meshing side base conical surface, the locus of a point B is a non-meshing side tooth profile curved surface of the plastic cone gear. The wheel gear reference circle modulus and tooth depth modulus of the plastic cone gear are unequal; and the design method of big tooth addendum coefficients is adopted.

Description

technical field [0001] The invention relates to the technical field of gear design, in particular to a plastic bevel gear. Background technique [0002] Plastic gears have been used extensively since the fiber nylon was developed in the 1930s. Compared with metal gears, plastic gears are widely used in various fields such as textiles, printing and dyeing, papermaking, food, automobiles, and instruments because of their advantages such as low friction, light weight, low noise, corrosion resistance, and insensitivity to processing errors. . [0003] The bevel gear mechanism can realize the transmission of motion and power between any two intersecting angular axes. Straight bevel gears are widely used in engineering because of their ease of design, processing and installation. Research shows that the tooth shape not only affects the kinematic characteristics of gear transmission, but also affects the dynamic characteristics of gear transmission. Commonly used involute bevel...

Claims

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Application Information

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IPC IPC(8): F16H55/17
Inventor 李秀莲王贵成赵景波朱福先王志周金宇
Owner JIANGSU UNIV OF TECH
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