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Method for processing ring surface worm-gears of hard tooth-surface ring surface worm-gear involute gear pair

A technology of involute gears and toroidal worms, which is applied in the field of toroidal worm processing, can solve problems such as hard-toothed worms that have not yet been found, and achieve the effect of solving precision machining problems

Inactive Publication Date: 2009-09-02
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a method for accurately machining the hard-toothed worm of the toroidal worm involute gear pair has not yet been found

Method used

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  • Method for processing ring surface worm-gears of hard tooth-surface ring surface worm-gear involute gear pair

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Embodiment Construction

[0013] Embodiments of the present invention will be described below according to the accompanying drawings.

[0014] The toroidal worm machining method of hard tooth surface toroidal worm involute gear pair can be implemented on ordinary gear hobbing machines. Design the involute gear pair of hard-toothed toroidal worm as a standard hard-toothed toroidal worm involute gear pair, the toroidal worm 1 and the involute helical cylindrical gear 2 are both left-handed, and the involute helical cylindrical gear 2 For standard involute gears, they have the same modulus m n and pressure angle α n , the number of teeth, pitch circle diameter and pitch circle helix angle of the involute helical cylindrical gear 2 are respectively z 2 、d 2 and beta 2 , the number of heads of the toroidal worm 1 is z 1 , transmission ratio i 12 =z 2 / z 1 , center distance a, involute helical gear 2 helical parameter p d = d 2 / (2tanβ 2 ).

[0015] The material of the toroidal worm 1 is selected...

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PUM

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Abstract

The invention discloses a toroidal worm processing method of an involute gear pair with a hard-toothed toroidal worm, which belongs to the finishing method of a hardened toroidal worm. The technical solution includes a toroidal worm 1 and its rotation axis 4, an involute helical cylindrical gear 2 and an involute gear-shaped honing wheel 3 having the same geometric parameters and the same rotation axis 5, and the two axes 4 and 5 are fixed and vertical Staggered, the center distance is a, the involute gear-shaped honing wheel 3 moves s along the axis 5 relative to the toroidal worm 1 and rotates around the axis 5 φdc=φ / i12+s / pd=f(φ, s), involute The linear gear-shaped honing wheel 3 performs a two-degree-of-freedom motion relative to the toroidal worm 1 to honing the toroidal worm 1 . The honing method of the toroidal worm of the involute gear pair of the hard-toothed toroidal worm proposed by the present invention solves the problem of precision machining of the hard-toothed toroidal worm involute gear pair, and is a hardened toroidal worm involute gear pair Gear pairs offer a new approach to machining.

Description

technical field [0001] The invention relates to a toroidal worm processing method for an involute gear pair of a hard-toothed toroidal worm, which belongs to the finishing method of a hardened toroidal worm. The thus obtained hardened toroidal worm and the hardened involute helical gear are meshed and driven to form a hardened toroidal worm involute gear pair. Background technique [0002] In worm and worm gear transmission, in order to obtain better contact quality, the worm pair needs to run-in, and in order to improve wear resistance and running-in performance, worm pairs with hard tooth surface and soft tooth surface are generally used, and soft tooth surface worm gear Copper is generally used as the material, but the cost is higher, or cast iron is used, but the bearing capacity is low. If the machining accuracy of the worm and worm gear is high, the contact quality of the worm pair is good, and it is conducive to elastohydrodynamic lubrication, and the extreme pressur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23F13/04
Inventor 李海涛董学朱魏文军赵亚平
Owner CHINA AGRI UNIV
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