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An anti-involute obtaining method for a gear

An acquisition method, an involute technology, applied to components with teeth, belts/chains/gears, special data processing applications, etc., can solve problems such as low reliability, short gear life, and large contact stress at contact points. Achieve the effect of reducing difficulty, improving carrying capacity and relaxing error

Pending Publication Date: 2019-06-25
重庆模源齿轮有限公司
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Problems solved by technology

[0002] The involute gear is an outer convex tooth profile composed of two symmetrical involutes. During the transmission process, the tooth profile is in convex-convex contact. According to the theory of Hertz (H.Hertz) spherical contact stress, the convex-convex contact is elastic deformation and stress concentration At the contact point, it is distributed from large to small with the deformation area, and the contact stress at the contact point is large. In the high power and high power transmission, the gear is mostly damaged by pitting corrosion, so the gear life is short, the reliability is low, and the transmission mechanism High maintenance cost, which is a fatal flaw of involute gears

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  • An anti-involute obtaining method for a gear
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  • An anti-involute obtaining method for a gear

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with accompanying drawing.

[0034] Such as Figure 1 to Figure 7 As shown, the acquisition method of the present invention includes the following steps:

[0035] 1): Based on the base circle of the gear, the function relationship of the reverse involute is obtained;

[0036] It is known that when the hob or slotting tool is cutting outside the base circle, the occurrence line of the involute is formed along the base circle, and when the hob or slotting tool extends into the base circle, the The direction of the starting point changes, take the starting point as the tangent line of the base circle, connect the starting point and the center of the base circle and extend it, it can be proved that the connecting line and the tangent line are perpendicular to each other, forming a plane Cartesian coordinate system, let the tangent line be the x line, connect The center line is the y line, and the origin ...

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Abstract

The invention discloses an anti-involute obtaining method for a gear, and the method comprises the following steps: 1), carrying out the modeling with a gear base circle as a reference, and building afunction relational expression of an anti-involute; 2) deducing a backlash-free meshing equation of the reverse involute tooth profile meshing transmission from the backlash-free meshing equation ofthe involute tooth profile meshing transmission; And 3) calculating the condition of the reverse involute tooth profile and the displacement coefficient of the reverse involute gear. An involute gearis provided with a meshing track of an anti-involute tooth profile; Compared with the prior art, the bearing capacity of the main working face can be improved, elastic deformation is considered in thedesign process, the stress deformation of the gear is corrected through the elastic deformation, meanwhile, the requirement for an elastic conjugate tooth profile curve is met, errors of gear manufacturing can be properly relaxed, and the difficulty for meeting the precision requirement for gear manufacturing is reduced.

Description

technical field [0001] The invention relates to the field of gear manufacturing, in particular to a reverse involute acquisition method for gears. Background technique [0002] The involute gear is an outer convex tooth profile composed of two symmetrical involutes. During the transmission process, the tooth profile is in convex-convex contact. According to the theory of Hertz (H.Hertz) spherical contact stress, the convex-convex contact is elastic deformation and stress concentration At the contact point, it is distributed from large to small with the deformation area, and the contact stress at the contact point is large. In the high power and high power transmission, the gear is mostly damaged by pitting corrosion, so the gear life is short, the reliability is low, and the transmission mechanism The maintenance cost is high, which is a fatal flaw of involute gears. Contents of the invention [0003] The technical problem to be solved by the present invention is to provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50F16H55/08
Inventor 谭富春
Owner 重庆模源齿轮有限公司
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