Method for homogenizing gear tooth surface grinding allowance of planar enveloping hourglass worm

A toroidal worm, grinding allowance technology, applied in the direction of worms, elements with teeth, belts/chains/gears, etc., to reduce the overall grinding allowance and homogenize the tooth root and tooth top grinding allowance , The effect of homogenizing the grinding allowance at the entrance and exit

Active Publication Date: 2016-11-02
上海合纵重工机械有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to address the above-mentioned deficiencies in the existing technical conditions, to provide a method for reducing the overall grinding allowance, homogenizing the grinding allowance at the entrance and exit, and homogenizing the grinding allowance at the root and top of the tooth, so as to solve the problem of existing methods. existing problems

Method used

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  • Method for homogenizing gear tooth surface grinding allowance of planar enveloping hourglass worm
  • Method for homogenizing gear tooth surface grinding allowance of planar enveloping hourglass worm
  • Method for homogenizing gear tooth surface grinding allowance of planar enveloping hourglass worm

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing, the present invention will be further described by embodiment, and the principle of this method is very clear to those skilled in the art.

[0033] center distance a 1 =125.2, transmission ratio i 01 =33, inclination angle of parent plane b=10°, radius of worm pitch circle r 1 =27.5, base circle radius r b =37.5, number of surrounding teeth is 3.5, indexing circle pressure angle a=22.33°, working half angle j w =16.64°, tooth pitch angle t=10.91°, worm addendum arc radius R a1 =94.51, worm tooth root arc radius R f1 =104.08 right-handed plane enveloping toroidal worm as an example. According to the principle of gear meshing and the homogeneous coordinate transformation matrix, the tooth surface equation of the worm is shown in the following equations:

[0034]

[0035] in

[0036] In the middle plane, the point p(x 1 ,y 1 ,z 1 ), should satisfy the following equations:

[0037]

[0038] where q? [0.37,0...

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Abstract

The invention relates to the technical field of grinding allowance homogenizing, in particular to a method for homogenizing gear tooth surface grinding allowance of a planar enveloping hourglass worm. The method is characterized by specifically comprising the following steps: a, establishing a mathematical model of the gear tooth surface grinding allowance of the planar enveloping hourglass worm; b, constructing an equation for enabling grinding allowance at an inlet and grinding allowance at an outlet in a helical line of a reference toroidal surface to be consistent by taking a tooth-punching center distance FORMULA and a radius of a tooth-punching base circle FORMULA as parameters; and enabling grinding allowance at a tooth-top helical line at the inlet and grinding allowance at a tooth-root helical line at the outlet to be consistent; c, solving the equation, regulating parameters of a machine tool to carry out tooth punching according to the tooth-punching center distance and the base circle radius; and d, obtaining smallest grinding allowance according to a difference value at a maximum point and a minimum point of the grinding allowance on a tooth surface. Compared with the prior art, the method has the advantages of being capable of reducing integral grinding allowance, homogenizing grinding allowance at the inlet and the outlet, and homogenizing the grinding allowance at the tooth root and the tooth top.

Description

[technical field] [0001] The invention relates to the technical field of homogenizing the grinding allowance, in particular to a method for homogenizing the grinding allowance of the tooth surface of a plane-enveloping toroidal worm. [Background technique] [0002] The common processing technology of the plane enveloping toroidal worm tooth surface is divided into two processes: rough turning and fine grinding of the tooth surface. During rough turning, the toroidal worm is obtained after processing according to the design parameters. Equal tooth thickness. When fine grinding the tooth surface, in order to ensure the inclination angle of the mother plane, the grinding wheel needs to be inclined at a certain angle, which will result in a large amount of grinding at the entrance of the tooth surface along the direction of the ring surface, and a small amount of grinding at the exit, and the grinding allowance of the tooth top is greater than that of the tooth root The grindin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23F13/04
CPCB23F13/04
Inventor 和法洋李开卫李展山
Owner 上海合纵重工机械有限公司
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