Full slit nut with limit boss for supporting anchor rod

A technology for limiting bosses and nuts, which is used in mine shafts, railway tunnels, slope support, and road fields, and can solve the problem of half-slit fractures at the clamping parts of nuts, circumferential cracking of supporting plates, and anchor bolts. Failure and other problems, to achieve the effect of improving support safety, reducing manufacturing costs, and reducing strength requirements

Inactive Publication Date: 2012-02-22
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the support plate made of glass steel is cracked in the circ

Method used

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Examples

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Example Embodiment

[0012] Such as figure 1 , figure 2 with image 3 As shown, the full-slit nut with limit boss for supporting the anchor rod includes a nut body 1 with an internal thread 5, and the nut body 1 is provided with a hexagonal and tapered clamping part 3; With a limiting boss 2, the nut body 1 is provided with a clamping slit 4 penetrating one side of the nut body 1, effectively avoiding the stress concentration caused by the semi-open seam 8 in the prior art and causing fracture. The limiting boss 2. The side length is 1.2 times the diameter of the anchor rod 7. It is molded or injection molded with the tapered clamping part 3 at one time, and then the internal thread 5 and clamping seam 4 are processed; the maximum diameter of the tapered clamping part 3 should be An interference fit is formed with the central through hole of the support plate 6, and the height of the frustum of the tapered clamping part 3 is the same as the thickness of the support plate 6; the width of the clamping

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Abstract

The invention relates to a full slit nut with a limit boss for supporting an anchor rod, and mainly solves the technical problem that the potential safety hazard is caused by failure of anchorage force because a support plate is annularly stressed and cracked when the conventional anchor rod is fastened by a nut and the support plate. The slit nut with the limit boss for supporting the anchor rodcomprises a nut body with internal threads, wherein the nut body is provided with a hexagon and a conical clamping part; the hexagon is provided with the limit boss, so that the support plate is prevented from being cracked due to overhigh annular stress; and the nut body is provided with a clamping slit which passes through one side of the nut body, so that the phenomenon that a semi clamping slit is subjected to stress concentration easily and cracked in the prior art is avoided. The full slit nut is suitable for fastening anchor rods for a mine shaft and tunnel support, and has the advantages that: the service life is long, the annular stress of the support plate is constant, the strength requirement on the support plate is reduced, the manufacturing cost of the support plate is reduced, support safety is improved, and the like.

Description

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Claims

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Application Information

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Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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