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Sleeve assembly capable of improvinganti-shearing performance of anchor rod and anchor rod comprising sleeve assembly

A technology of bolts and sleeves, which is applied in the installation of bolts, mining equipment, earth-moving drilling, etc., can solve the problem of high support costs, affecting the effect of roadway support, roadway excavation construction speed, and roadway support safety is difficult to guarantee. and other problems to achieve the effect of improving the quality of support, reducing the physical labor of workers, and reducing costs

Pending Publication Date: 2019-04-05
TAIAN TAISHUO STRATUM CONTROL SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After the bolt is broken, in order to effectively control the deformation of the roadway and prevent accidents, the method of repairing the bolt in time is often used for reinforcement and support, which leads to high support costs and seriously affects the support effect of the roadway and the normal operation of the roadway. The speed of excavation and the safety of roadway support are difficult to be guaranteed, so it is very important to develop a new type of shear-resistant anchor

Method used

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  • Sleeve assembly capable of improvinganti-shearing performance of anchor rod and anchor rod comprising sleeve assembly
  • Sleeve assembly capable of improvinganti-shearing performance of anchor rod and anchor rod comprising sleeve assembly

Examples

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Embodiment 1

[0022] Example 1, such as Figure 1-Figure 2 As shown, a sleeve assembly for improving the shear resistance performance of the anchor rod, the sleeve assembly includes a sleeve 2, and the sleeve 2 is sleeved on the outside of the anchor rod body 1 and is located inside the tray 4 of the anchor rod end, an O-ring 3 for fixing the position of the sleeve 2 is set between the sleeve 2 and the anchor rod body 1; the sleeve assembly also includes a ball pad 5, a plastic Washer 6, iron gasket 7, the outer end of the iron gasket 7 is provided with a fixed damping nut 8.

[0023] As a preference, the length of the sleeve 2 is 100-1000mm, and the pipe wall of the sleeve 2 is 2.5-3mm; the inner diameter of the sleeve 2 is 6-8mm larger than the diameter of the bolt body 1, and the sleeve 2 The wire diameter of the inner O-ring 3 is 2.5mm.

[0024] As a preference, the specification model of the ball pad 5 is φ50mm×φ25mm×13mm.

[0025] An anchor with shear resistance, comprising an anch...

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Abstract

The invention belongs to the field of auxiliary components of anchor rods, and particularly relates to a sleeve assembly capable of improving the anti-shearing performance of an anchor rod and the anchor rod comprising thesleeve assembly. The sleeve assembly comprises a sleeve (2), the sleeve (2) is arranged at the inner side end, provided with a tray (4), of an anchor rod body (1), and an O-shaped sealing ring (3) is arranged between the sleeve (2) and the anchor rod body (1); the sleeve assembly further comprises an iron spacer (7) arranged at the outer side end of the tray (4) of the anchorrod body (1), a plastic washer (6) and a ball pad (5), and a fixed damping nut (8) is arranged at the outer end of the ball pad (5). The whole design can effectively reduce the amount of anchor rod fracturing caused by staggering of holes and surrounding rock, improve the anti-shearing capacity of an anchor rod supporting system, reduce cost of supplementary driving of anchor rods, reduce manuallabor of workers, improve the supporting effect of the anchor rods, and improve the safety ofroadway supporting.

Description

technical field [0001] The present application relates to a sleeve assembly for improving the shear resistance performance of an anchor rod and an anchor rod comprising the assembly. Background technique [0002] During the bolt support process of the roadway, the opening of the roadway and within a certain range of the opening, because the surrounding rock is loose and broken, under the action of external stress, the surrounding rock moves or shifts. , breaking under the shear stress from the dislocation of the surrounding rock, this phenomenon is very common in the bolting process of coal mines, and the breaking of the bolt has become a major hidden danger of roadway accidents. It has been observed that the breakage of anchor bolts is mostly concentrated between the contact position with the pallet and the position between 0 and 1m away from the orifice. [0003] After the bolt is broken, in order to effectively control the deformation of the roadway and prevent accidents...

Claims

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Application Information

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IPC IPC(8): E21D21/00C22C38/02C22C38/04
CPCE21D21/0033C22C38/002C22C38/02C22C38/04E21D21/0006E21D21/008E21D21/0086
Inventor 王阁仇亚男高贯林
Owner TAIAN TAISHUO STRATUM CONTROL SCI & TECH CO LTD
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