Novel deformation-controllable elastic energy-releasing impact-resistant anchor rod and using method thereof

An impact-resistant and energy-releasing technology, used in the installation of bolts, earth-moving drilling, mining equipment, etc., and can solve problems such as bolt breakage

Active Publication Date: 2020-10-20
TAIAN TAISHUO STRATUM CONTROL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a novel controllable deformation elastic energy-releasing impact-resistant anchor and its use method, which effectively solves the problem of instantaneous breakage of the anchor under the condition of rock burst

Method used

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  • Novel deformation-controllable elastic energy-releasing impact-resistant anchor rod and using method thereof
  • Novel deformation-controllable elastic energy-releasing impact-resistant anchor rod and using method thereof
  • Novel deformation-controllable elastic energy-releasing impact-resistant anchor rod and using method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as image 3 A new type of controllable deformation elastic energy release shock-resistant bolt is shown, including a bolt body 4, a fastening nut 5 and a tray 7 installed on the bolt body, and there is also a gap between the fastening nut 5 and the tray 7 A controllable deformation energy release ring 6 is provided. The controllable deformation energy release ring of this embodiment is also applicable to the anchor cable. When the anchor cable is used for anchoring, the controllable deformation energy release ring is also arranged between the fastening nut 5 and the pallet 7 .

[0031] The controllable deformation energy release ring includes a first ring 3 and a second ring 1 arranged axially and sleeved on the anchor body. The first ring 3 and the second ring 1 pass through the double-arc reducer ring 2 are connected as a whole, the outer diameter of the first ring is smaller than the inner diameter of the second ring, and the axial projection of the first ring ...

Embodiment 2

[0038] The difference between this embodiment and Embodiment 1 is that there are two controllable deformation energy release rings, and the installation method of the two controllable deformation energy release rings is that the first circular ring is set opposite to each other, or the second ring of the two controllable deformation energy release rings The rings are arranged opposite to each other. In order to increase the contact area between the fastening nut, the tray and the controllable deformation energy release ring, this embodiment adopts the arrangement of the first rings of the two controllable deformation energy release rings opposite to each other.

Embodiment 3

[0040]The difference between this embodiment and Embodiment 1 is that the controllable deformation energy release ring of this embodiment includes a first circular ring, a second circular ring and a third circular ring arranged in sequence, and the first circular ring, the second circular ring and the The diameter of the third ring increases successively, the projection of the second ring along the axis is located within the range of the projection of the third ring along the axis, the first ring and the second ring, and the second ring and the third ring The rings are respectively connected as a whole by double-arc reducing rings, so that when the surrounding rock expands outward, the energy released by the surrounding rock is absorbed through two-stage folding deformation, which further strengthens the protection of the bolt body and prevents the bolt body from breaking instantly. .

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Abstract

The invention relates to a novel deformation-controllable elastic energy-releasing impact-resistant anchor rod and a using method thereof. The impact-resistant anchor rod comprises an anchor rod body,a fastening nut and a tray, wherein the fastening nut and the tray are installed on the anchor rod body. A deformation-controllable energy-releasing ring is further arranged between the fastening nutand the tray and comprises a first circular ring and a second circular ring, wherein the first circular ring and the second circular ring are arranged in the axial direction and arranged on the anchor rod body in a sleeving mode. The first circular ring and the second circular ring are connected into a whole through a double-arc reducing ring. The projection of the first circular ring in the axial direction is located within the range of the projection of the second circular ring in the axial direction. According to the novel deformation-controllable elastic energy-releasing impact-resistantanchor rod and the using method thereof, under the condition that surrounding rock is damaged and a large amount of deformation is generated, the double-arc reducing ring is used for guiding the deformation-controllable energy-releasing ring to be turned over and deformed, and the deformation amount of the anchor rod body is replaced; and in addition, the axial length of the deformation-controllable energy-releasing ring is decreased, the safety of the anchor rod body is ensured, and enough supporting force can be continuously provided under the large-deformation condition, so that the supporting technical problems of instant surrounding rock damage and instant anchor rod breakage are solved, and the production safety is ensured.

Description

technical field [0001] The invention relates to the technical field of roadway support, in particular to a novel controllable deformation elastic energy-releasing impact-resistant bolt and its use method, which are used to solve the problem of roadway bolts under the conditions of rock burst, dynamic pressure roadway or strong mine pressure. Instantly broken technical problems. Background technique [0002] In recent years, with the depletion of coal mine resources, deep mining has become the main battlefield of coal mining. Deep roadways are subject to strong mine pressure forces such as shocks and vibrations (waves) during the entire life cycle. [0003] The reason for the phenomenon of strong mine pressure force is that the surrounding rock stress of the roadway increases, and a large amount of elastic energy accumulates in it. When the surrounding rock is damaged and suddenly loses its strength, the elastic energy in the fragments will be converted into kinetic energy a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D21/00
CPCE21D21/00E21D21/0086
Inventor 王阁武颖奎文志杰高贯林
Owner TAIAN TAISHUO STRATUM CONTROL SCI & TECH CO LTD
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