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Device for preventing nut looseness

A technology for loosening nuts and main nuts, applied in the direction of nuts, screws, bolts, etc., can solve problems such as difficulty in disassembly, and achieve the effect of firm and reliable connection and improved friction

Inactive Publication Date: 2016-03-09
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the bolt rod can only be used once, and it is very difficult to disassemble, and the thread pair must be destroyed to disassemble

Method used

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  • Device for preventing nut looseness
  • Device for preventing nut looseness
  • Device for preventing nut looseness

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Experimental program
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Embodiment Construction

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0023] Such as Figure 1 to Figure 6 As shown, the device for preventing nut loosening according to the present invention includes a bolt 1, a lock nut 2, a built-in threaded notch washer 3 with a bump, a main nut 4, a flat washer 5 and a connected workpiece 6, the specific structure and connection The way is:

[0024] The bolt 1 is a hexagon head standard bolt, the lock nut 2 is a special nut, the upper end of the lock nut 2 is a threaded hole, the upper end of the lock nut 2 is connected with the bolt 1 through the thread, and the lower end is a cone surface and a built-in The upper conical surface of the threaded gap washer 3 matches, and the upper end of the built-in threaded notched washer 3 with protrusions is a conical surface, and the lower end is a conical surface with protrusions. The main nut 4 is a special nut, and the upper end of ...

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PUM

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Abstract

The invention discloses a device for preventing nut looseness. The device for preventing nut looseness comprises a bolt, a lock nut, an internal threaded notch gasket, a main nut, a flat gasket and a workpiece to be connected, wherein the internal threaded notch gasket is provided with a lug. The bolt is a standard hexagonal head bolt. The lock nut is a purpose-made nut. The upper end of the lock nut is provided with a threaded hole and connected with the bolt through threads, and the lower end of the lock nut is provided with a conical surface and matched with the upper conical surface of the internal threaded notch gasket provided with the lug. The upper end of the internal threaded notch gasket provided with the lug is the conical surface, and the lower end of the internal threaded notch gasket provided with the lug is a conical surface provided with the lug. The main nut is a purpose-made nut. The upper end of the main nut is provided with a conical surface and matched with the conical surface, provided with the lug, at the lower end of the internal threaded notch gasket provided with the lug, and the conical surface at the upper end of the main nut is provided with a notch. The lower end of the main nut is provided with a threaded hole and connected with the bolt through threads. The bolt is directly sleeved with the flat gasket and the workpiece to be connected. The device is simple in structure, reasonable in design and capable of effectively preventing nut looseness.

Description

technical field [0001] The invention relates to the field of nuts, in particular to a device for preventing nuts from loosening. Background technique [0002] A nut is a fastener with an internal thread and used in conjunction with a bolt, a mechanical part with an internal thread and used in conjunction with a bolt to transmit motion or power. The existing ways to prevent the nut from loosening mainly include the following types: [0003] 1. Friction and anti-loosening. This method is the most widely used anti-loosening method, which generates a friction force between the thread pairs that can prevent the relative rotation of the thread pairs. For example, elastic washers, double nuts, etc. are used. In these nut loosening methods, the thread teeth are in point contact, which is easy to loosen under the condition of impact, vibration and variable load, which will eventually lead to the nut loosening. [0004] 2. The mechanical nut is anti-loose. This way is to directly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/12
Inventor 郑战光黄龙贵冯强杨兴
Owner GUANGXI UNIV
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