Unloading-type anti-vibration nut capable of automatically adjusting position

Abstract

The invention discloses an anti-vibration nut capable of automatically adjusting a position, comprising a nut body, wherein a section of groove without a thread is disposed at one end close to a nut bearing surface; the depth of the groove is equal to a pitch length or the double of the pitch length; an annular groove is disposed on the root part of the groove; an assistant screw sleeve matched with the groove and the annular groove in shape is fixed close to the nut bearing surface; the assistant screw sleeve is made of a high-strength non-metallic material different from the material of the nut body; the assistant screw sleeve is accordant with the thread of the nut body; and one end of the nut bearing surface is convex-spherical. The unloading-type anti-vibration nut capable of automatically adjusting a position disclosed by the invention can automatically adjust a position and avoid the additional stress generated by the error brought while assembling during an assembly process, and can reduce a load between the nut and an assembly bolt and keep the stress of the thread uniform after the assembly is finished, thereby achieving a purpose of unloading the nut after the assembly.

Description

technical field [0001] The invention relates to an unloading type self-adjusting anti-vibration nut. Background technique [0002] Various types of fastening nuts currently on the market are standard parts, and there are many varieties. However, in engineering applications, especially fastening nuts working in vibration environments, spring washers or other anti-loosening measures are usually required. Even in this case, under strong vibration conditions, the nuts will loosen or the matching bolts will break when the working stress is much lower than the strength limit. Like a fracture, there is almost no extension, which is generally difficult to find during maintenance; on the other hand, in engineering, it is often encountered that the size of the product structure is limited, and it is impossible to assemble spring washers or use other anti-loosening measures for locking. Contents of the invention [0003] The purpose of the present invention is to provide an unloadin...

AI Technical Summary

Problems solved by technology

[0002] Various types of fastening nuts currently on the market are standard parts, and there are many varieties. However, in engineering applications, especially fastening nuts working in vibration environments, spring washers or other anti-loosening measures are usually required. Even in this case, under strong vibration conditions, the nuts will loosen or the matching bolts will break when the working stress is much lower than the strength limit. Like a fracture, there is almost no extension, which is generally difficult to find during maintenance; on the other hand, in engineering, it is often encountered that the product structure size is limited, and it is impossible to assemble spring washers or use other anti-loosening measures for locking

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