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Improved sliding anchor

A sliding body and sliding control technology, which is applied in the installation of bolts, mining equipment, earthwork drilling and mining, etc., can solve problems such as rock bolt fracture

Inactive Publication Date: 2013-04-03
ATLAS COPCO MAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Conventional rock bolts are capable of transmitting a maximum load corresponding to their mechanical design, and if this load is exceeded (the so-called fracture load), the conventional rock bolt will fracture

Method used

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  • Improved sliding anchor
  • Improved sliding anchor

Examples

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Embodiment Construction

[0033] figure 1 Denotes a sliding anchor, generally designated 10, for insertion into a rock hole (not shown) for stabilizing walls such as a tunnel or tunnel. The central element of the sliding anchor 10 is the anchor rod 12 , which is the load-bearing element of the sliding anchor 10 , and the length of the anchor rod 12 determines the length of the sliding anchor 10 . In the illustrated embodiment, the anchor rod 12 is a solid continuous steel rod with a circular cross-section, a diameter of 12 mm, and smooth side surfaces, where the length of the anchor rod 12 is 2 mm. rice. However, the diameter of the anchor shank 12 may be greater or less than 12 mm, depending on the required load transfer capability. Furthermore, depending on the installation situation, the length of the anchor rod 12 can also be longer or shorter than previously indicated. Also, the side surfaces of the anchor rod 12 need not be smooth, but could be, for example, roughened, grooved, or the like. A...

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PUM

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Abstract

The invention relates to a sliding bolt (10) for introducing into a bore, having an anchor rod (12), on which is disposed a sliding control element (14) with a through-opening (18), through which the anchor rod (12) extends, wherein the sliding control element (14) comprises a sliding body cage (16) having at least one recess (20) for receiving a sliding body (22) that is in contact with the lateral surface of the anchor rod (12), and having an anchor plate (24), which is intended to lie against a region surrounding the mouth of the bore once the sliding bolt (10) has been introduced into the bore. In contrast to conventional sliding bolts, the anchor plate (24) is in load-transferring connection with the sliding body cage (16), with the result that it is easily possible to provide a device that indicates a sliding path of the sliding bolt that is still available.

Description

technical field [0001] The invention relates to a sliding anchor bolt for insertion into a hole, wherein the sliding anchor bolt comprises an anchor bolt rod and an anchor bolt plate, a sliding control element with a through hole is arranged on the anchor bolt rod, the anchor bolt A bolt rod extends through the through hole, and the anchor plate is adapted to abut against an area surrounding the opening of the hole after the slide anchor has been inserted into the hole, and wherein the The sliding control element includes a slider housing having at least one recess for accommodating a slider that is in contact with a side surface of the anchor rod. Such a sliding anchor is known from WO 2006 / 034208 A1. Background technique [0002] Sliding bolts belong to the field of so-called rock bolts. Rock bolts are used in the mining industry, in tunnel construction and in special civil engineering to stabilize the walls of tunnels, tunnels or embankments. For this purpose, holes wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D21/00
CPCE21D21/0033E21D21/008
Inventor M·迈德F·查瑞特
Owner ATLAS COPCO MAI
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