Dodecagonal spline tooth rotation preventing self-locking check ring

A spline tooth, dodecagonal technology, applied in the field of dodecagonal spline tooth anti-rotation self-locking retaining ring, can solve problems such as failure and low strength, and achieve the effect of sufficient strength, firm and reliable connection, and ability to prevent rotation.

Inactive Publication Date: 2018-02-02
GUIZHOU AEROSPACE PRECISION PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]After the parts in the hole are assembled, the elastic retaining ring for the hole is usually used to limit the axial position of the part in the hole. The ring wall is thin and the strength is low, so it is easy to fail under the action of axial impact force
Therefore, when the axial load is large, the method of using the existing circlip for the hole to limit the axial position of the parts in the hole cannot meet the needs of use.

Method used

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  • Dodecagonal spline tooth rotation preventing self-locking check ring
  • Dodecagonal spline tooth rotation preventing self-locking check ring

Examples

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Effect test

Embodiment

[0016] This example Figure 1-2 As shown, when implementing the present invention, first process the part body 1, then process the external thread 4 on the outer circle of the part body 1, and process the dodecagonal spline tooth hole 2 at the center of the part body 1, and then in the part body 1 Extrude 2 to 4 concave deformation pits 3 on the inner wall where the external thread is located by using the existing flaring method or stamping method, and make the external thread on the outer surface of the part body 1 produce local convex deformation 6 through the concave deformation pit 3, Deformed as figure 2 shown by figure 2 It can be seen that the tooth height of the external thread is raised upwards by δ from the original height (shown by the dotted line in the figure). Due to the local convex deformation on the thread, a self-locking moment will be generated during connection; the twelve-point spline hole has the effect of preventing rotation. In order to facilitate ...

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Abstract

The invention discloses a dodecagonal spline tooth rotation preventing self-locking check ring which comprises a part body (1). The part body (1) is shaped like a short pipe with one end closed. The closed end of the short pipe is provided with a dodecagonal spline tooth hole (2) coinciding with the central axis of the short pipe. The outer cylindrical face of the short pipe is provided with an external thread (4). The inner wall of the short pipe is provided with sunken deformation pits (3) uniformly distributed along the circumference. The end face of the unclosed end of the short pipe is provided with screwing notches (5) uniformly distributed along the circumstance. The check ring has the beneficial effects of having a self-locking function and having an ability to prevent rotation. The check ring is sufficient in strength, firm and reliable in connection, and particularly suitable for limiting the axial position of a part in the hole after the part in the hole is assembled, and can be applied to other occasions with large axial loads.

Description

technical field [0001] The invention relates to a twelve-corner spline tooth anti-rotation self-locking retaining ring, which belongs to the technical field of self-locking screw connection. Background technique [0002] After the parts in the hole are assembled, the axial position of the part in the hole is usually limited by the elastic retaining ring for the hole. Because the existing elastic retaining ring for the hole has a thin wall and low strength, it is easy to be affected by the axial impact force. next failure. Therefore, when the axial load is relatively large, the existing method of limiting the axial position of the parts in the hole by using the existing circlip for the hole cannot meet the needs of use. Contents of the invention [0003] The object of the present invention is to provide a twelve-point spline tooth anti-rotation self-locking retaining ring, which can limit the axial position of the parts in the hole, has high strength, can prevent the parts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/30F16B33/02
CPCF16B39/30F16B33/002F16B33/02
Inventor 杨鑫刘骞李祥周绚何志友王维斌
Owner GUIZHOU AEROSPACE PRECISION PRODS
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