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Design method for tooth profile of involute internal spline needing heat treatment and internal spline

A design method, the technology of internal splines, applied in the direction of mechanical equipment, components with teeth, belts/chains/gears, etc., can solve the problems of low brushing efficiency and poor brushing effect, and achieve reasonable contact area. Guarantee centering accuracy, improve passability and standard compliance

Active Publication Date: 2022-01-28
SICHUAN MINGCHI GEAR MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the anti-seepage material is applied locally on the inner spline, the actual brushing efficiency is not high, and the brushing effect in the keyway is poor

Method used

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  • Design method for tooth profile of involute internal spline needing heat treatment and internal spline
  • Design method for tooth profile of involute internal spline needing heat treatment and internal spline

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Embodiment Construction

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, ...

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Abstract

The invention discloses a design method for the tooth profile of an involute internal spline needing heat treatment and an internal spline. The design method comprises the steps that the intersection point of an involute end circle and an original tooth profile curve is set as a reference point, and the intersection point of an original internal spline tooth profile and an internal spline small diameter is set as a first intersection point; and in the direction from the reference point to the first intersection point, an increment is added to the tooth profile pressure angle of the internal spline, so that the cutting and shaping amount is increased for the original tooth profile curve from the reference point to the first intersection point. The technical purpose of the invention is to provide the design method for the tooth profile of the involute internal spline needing heat treatment and the internal spline, and the design method and the internal spline designed based on the method can compensate deformation after heat treatment.

Description

technical field [0001] The invention belongs to the technical field of splines, and in particular relates to a tooth profile design method of an involute internal spline requiring heat treatment and the internal spline. Background technique [0002] The involute spline is the most commonly used structure for gears to transmit torque. The gear relies on the spline connection to transmit the torque, which has the characteristics of self-centering and strong bearing capacity. [0003] For gears used in heavy trucks and construction machinery, due to the high load requirements, the gears are usually required to be carburized and quenched to improve the surface hardness and maintain the toughness of the core. The internal spline of the gear is generally completed by broaching before heat treatment, and no longer processed after heat treatment. During heat treatment, carburizing and quenching, the inner spline undergoes shrinkage cavity deformation, which leads to the deteriorat...

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Application Information

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IPC IPC(8): F16H55/17F16H55/08F16H55/06
CPCF16H55/17F16H55/0806F16H55/06F16H2055/176
Inventor 郝成勇袁兴勇
Owner SICHUAN MINGCHI GEAR MFG
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