Anti-friction nut

A nut and nut body technology, applied in the direction of nuts, threaded fasteners, connecting components, etc., can solve the problem of large friction between the nut and the tray, and achieve the effect of improving the effective preload, reducing fracturing and reducing friction.

Active Publication Date: 2018-10-23
JIANGSU ZHENGXING MINING TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an anti-friction nut to solve the technical problem of relatively high friction between the nut and the tray in the prior art

Method used

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Embodiment 1

[0034] see figure 1 , figure 2 As shown, the present embodiment provides an anti-friction nut; figure 1 The front view of the anti-friction nut provided for this embodiment; in order to show the structure more clearly, figure 2 for figure 1 Half cutaway view of the antifriction nut shown.

[0035] see figure 1 , figure 2 As shown, the anti-friction nut provided in this embodiment is applied to anchor rods, especially to fiberglass anchor rods, and includes a nut body 1 and a threaded through hole 2 fixed on the nut body 1. The nut body 1 includes a threaded through hole The first part 11 and the second part 12 are fixedly connected in sequence in the axial direction of 2, and the threaded through hole 2 runs through the first part 11 and the second part 12. Wherein, the anti-friction nut is threadedly connected with the rod body of the anchor rod through the threaded through hole 2 .

[0036] Along the axial direction of the threaded through hole 2 , the cross-sectio...

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PUM

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Abstract

The invention relates to the technical field of fasteners, in particular to an anti-friction nut. The anti-friction nut comprises a nut body and a threaded through hole fixedly formed in the nut body, wherein the nut body comprises a first part and a second part which are fixedly connected in sequence in an axial direction of the threaded through hole, and the threaded through hole penetrates through the first part and the second part; a cross section area of the first part is not smaller than that of the second part in the axial direction of the threaded through hole; bulged lines are formed on the outer surface of the second part. The anti-friction nut is provided in order to solve the technical problem of larger friction force produced between the nut and a tray in the prior art.

Description

technical field [0001] The invention relates to the technical field of fasteners, in particular to an anti-friction nut. Background technique [0002] Anchor bolt is a kind of supporting equipment that is widely used in mines. As a tensile member that goes deep into the ground, the anchor rod is connected to the engineering structure at one end, and the other end goes deep into the ground; the whole bolt can be divided into a free section and an anchor section. The area of ​​the body, its function is to apply prestress to the anchor rod; the anchor section refers to the area where the cement paste bonds the prestressed tendons to the soil layer, and its function is to increase the bonding friction between the anchor body and the soil layer. Increase the pressure bearing effect of the anchor body, and transmit the tension of the free section to the depth of the soil. [0003] If the bolt support is to play its role in controlling the surrounding rock, the body of the bolt n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B37/04
CPCF16B37/042
Inventor 许兴亮田素川李俊生吴宇刘忠堂刘青鑫崔灿
Owner JIANGSU ZHENGXING MINING TECH DEV CO LTD
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