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A device for preventing nut from loosening

A nut loosening and nut loosening technology, which is applied in the direction of nuts, screws, bolts, etc., can solve the problems of upper rubber roller escape, inconvenient operation, nut loosening, etc., and achieve the effect of ensuring anti-loosening

Active Publication Date: 2019-07-26
CHINA TOBACCO ZHEJIANG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the tobacco industry, there is a glue stick on the gluing part of the cigarette machine. The existing glue stick is installed on a rotating shaft and tightened and fixed by a nut with a slot hole. After the rotation is completed, the large nut needs to be fastened with an inner hexagon , the operation is inconvenient; and during the operation of the upper rubber roller, the phenomenon that the nut loosens and the upper rubber roller escapes often occurs, resulting in quality problems of the product

Method used

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  • A device for preventing nut from loosening
  • A device for preventing nut from loosening
  • A device for preventing nut from loosening

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Embodiment Construction

[0015] See attached picture. This embodiment includes a nut 1, a rotating shaft 2 and a top cover 3; the nut 1 is a hollow cylindrical structure, and a step 11 is milled at each end on the outer circumference of the nut, which can be tightened by a wrench; the inside of the nut is provided with a through The through hole of the whole nut has different aperture sizes at both ends of the through hole, one side is a small end, and the other side is a large end; the inner wall of the small end is provided with an internal thread 12, and the rotating shaft 2 is provided with an external thread 21. The internal thread 12 of the small end is connected and fixed; the top of the rotating shaft 2 is provided with a square positioning column 22, and one side of the square positioning column 22 is provided with a hole, and a top bead 23 is arranged in the hole, and a shrapnel is arranged below the top bead (the shrapnel is not shown in the figure) ), the shrapnel is used to eject the top ...

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Abstract

The invention discloses a device for preventing a nut from loosening. The device comprises the nut, a rotary shaft and a top cap, wherein the nut is of a hollow cylindrical structure; a first tooth-shaped structure is arranged on an inner wall of the nut; a positioning column is arranged on the top end of the rotary shaft; a hole is formed in one side of the positioning column; a top bead is arranged in the hole; a spring plate is arranged under the top bead; the top cap is of a cylindrical structure; a circle of second tooth-shaped structure matched with the first tooth-shaped structure is arranged on a circumferential surface; a square-shaped hole is formed in one side, facing the nut, of the top cap; a groove is formed in a hole wall of the square-shaped hole; the positioning column ofthe rotary shaft is inserted from one end of a screw cap so as to be arranged in the square-shaped hole; and the top bead is matched with the groove. According to the device for preventing the nut from loosening provided by the invention, through the tight installation coordination of the rotary shaft, the screw cap and the top cap, a rubber covered roller is ensured to be stressed by a constraining force of the nut so as to be prevented from separating during a mechanical rotating process, and the top cap ensures the relative rotation of the nut and the rotary shaft, so that the anti-looseness of the device is ensured.

Description

technical field [0001] The invention belongs to the field of machinery, in particular to a device for preventing nuts from loosening. Background technique [0002] In the tobacco industry, there is a glue stick on the gluing part of the cigarette machine. The existing glue stick is installed on a rotating shaft and tightened and fixed by a nut with a slot hole. After the rotation is completed, the large nut needs to be fastened with an inner hexagon , the operation is inconvenient; and during the operation of the upper rubber roller, the phenomenon that the nut loosens and the upper rubber roller escapes often occurs, resulting in quality problems of the product. Contents of the invention [0003] The object of the present invention is to solve the above problems and provide a device capable of preventing the nut from loosening and escaping during the operation of the equipment. [0004] For this reason, the technical solution of the present invention is: a device for pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D1/06F16B39/28
CPCF16B39/28F16D1/06
Inventor 徐玉中徐文溪陆子勇郭江吴伟明朱增旭
Owner CHINA TOBACCO ZHEJIANG IND
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