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Thrust bearing

A thrust bearing and axial displacement technology, applied in the field of thrust bearings, can solve problems such as stuck and unable to open, scrapped mechanism, difficult machine tools, etc.

Inactive Publication Date: 2017-12-22
于士才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In mechanical processing, sometimes the machine tool will have a "crash" phenomenon, and it is difficult to release the machine tool that is stuck due to the "crash", and sometimes some mechanisms will be scrapped; when the self-tightening drill chuck is subject to greater resistance, it is prone to jamming Phenomenon that can't be opened

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 1 Schematic diagram of the structure of the thrust bearing provided in Embodiment 1 of the present invention; figure 2 A schematic structural diagram of the upper cover provided in Embodiment 1 of the present invention; as Figure 1-Figure 2 As shown, the thrust bearing provided by Embodiment 1 of the present invention includes an upper sleeve 1, a lower sleeve 2 and a rolling element 3, the upper sleeve 1 and the lower sleeve 2 are connected in rotation in opposite directions, and the upper sleeve 1 is ring-mounted with The first stop tooth 11, the second stop tooth 21 is installed on the ring of the lower sleeve 2, the second stop tooth 21 is opposite to the first stop tooth 11, and is adjacent to the first stop tooth 11. The surface of the upper sleeve 1 between the limit teeth 11 is a slope 4, and the rolling element 3 is installed on the slope 4;

[0029] When the upper sleeve 1 and the lower sleeve 2 rotate in opposite directions, the second stop teeth 2...

Embodiment 2

[0040] image 3 Schematic diagram of the structure of the thrust bearing provided in Embodiment 2 of the present invention; Figure 4 The structural schematic diagram of the upper sleeve provided for the second embodiment of the present invention; as Figure 3-Figure 4 As shown, the thrust bearing provided by Embodiment 2 of the present invention includes an upper sleeve 1, a lower sleeve 2 and a rolling element 3, the upper sleeve 1 and the lower sleeve 2 are connected in rotation in opposite directions, and the upper sleeve 1 is ring-mounted with The first stop tooth 11, the second stop tooth 21 is installed on the ring of the lower sleeve 2, the second stop tooth 21 is opposite to the first stop tooth 11, and is adjacent to the first stop tooth 11. The surface of the upper sleeve 1 between the limit teeth 11 is an inclined track 5, and the rolling body 3 is installed on the inclined track 5;

[0041] When the upper sleeve 1 and the lower sleeve 2 rotate in opposite direct...

Embodiment 3

[0052] The thrust bearing provided in Embodiment 3 is a further improvement on the thrust bearing provided in Embodiment 1. In Embodiment 1 and figure 1 , figure 2On the basis of , the thrust bearing provided in the third embodiment includes an upper sleeve 1, a lower sleeve 2 and a rolling element 3, the upper sleeve 1 and the lower sleeve 2 are connected in rotation in opposite directions, and the upper sleeve 1 is ring-mounted with The first stop tooth 11, the second stop tooth 21 is installed on the ring of the lower sleeve 2, the second stop tooth 21 is opposite to the first stop tooth 11, and is adjacent to the first stop tooth 11. The surface of the upper sleeve 1 between the limit teeth 11 is a slope 4, and the rolling element 3 is installed on the slope 4;

[0053] When the upper sleeve 1 and the lower sleeve 2 rotate in opposite directions, the second stop teeth 21 on the lower sleeve 2 drive the rolling elements 3 to move along the slope 4, so that the upper sleev...

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Abstract

The invention discloses a thrust bearing. The thrust bearing comprises an upper cover, a lower cover and a rolling body. The upper cover and the lower cover are oppositely and rotationally connected. The upper cover is provided with first limiting teeth in a surrounding manner, and the lower cover is provided with second limiting teeth in a surrounding manner. The second limiting teeth and the first limiting teeth are oppositely arranged in a stagger manner. The surface, between the adjacent first limiting teeth, of the upper cover is a slope or an obliquely arranged track, and the rolling body is arranged on the slopes or the obliquely arranged tracks. When the upper cover and the lower cover oppositely rotate, the second limiting teeth of the lower cover drive the rolling body to move along the slopes or the obliquely arranged tracks, and the upper cover and the lower cover relatively move in the axial direction. The thrust bearing is simple in structure and practical in function and can be widely applied to various rotating mechanical structures, and the problem that clamping or locking is easily caused by relatively large resistance in the mechanical structure is solved.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a thrust bearing used for self-tightening drill chucks and machine tools. Background technique [0002] In mechanical processing, sometimes the machine tool will have a "crash" phenomenon, and it is difficult to release the machine tool that is stuck due to the "crash", and sometimes some mechanisms will be scrapped; when the self-tightening drill chuck is subject to greater resistance, it is prone to jamming The phenomenon that death cannot be opened. Contents of the invention [0003] The object of the present invention is to provide a thrust bearing to solve the above-mentioned technical problems existing in the prior art and structures. [0004] The thrust bearing provided by the present invention includes an upper sleeve, a lower sleeve and rolling elements, the upper sleeve and the lower sleeve are connected in rotation in opposite directions, the upper sleeve is provid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/10F16C19/30
CPCF16C19/10F16C19/30
Inventor 于士才
Owner 于士才
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