A blasting type mine single support pillar

Abstract

The present invention provides a blasting-type single-body support pillar for a mine, comprising a base and a top rod, a receiving groove is provided on the base, one end of the top rod is fixedly connected with an elastic member and is mounted in the receiving groove, a detonator and gunpowder are sequentially filled between the bottom of the receiving groove and the elastic member, and the detonator is electrically connected to an externally arranged detonator through a wire. By adopting the technical solution of the present invention, when the detonator is started and the gunpowder is detonated by the detonator, the top rod and the elastic member are caused to slide outward, and at the same time, the elastic member is caused to deform and be mounted in the limiting hole, thereby achieving the purpose of supporting the roof or surrounding rock of the mine shaft. Compared with the single-body hydraulic support commonly used in the prior art, no complex hydraulic system is used to provide power, the supporting device has a simple structure, is easy to move and turn around, has high operational flexibility, does not need to consider the problem of hydraulic fluid leakage, reduces the processing accuracy requirements of the corresponding parts, and is conducive to reducing manufacturing costs.

Description

Technical Field

[0001] The invention belongs to the technical field of mining engineering equipment, and in particular relates to an explosive-type mine single supporting pillar. Background Art

[0002] In the process of mineral mining, in the process of continuous excavation and extension of mine shafts and tunnels, it is necessary to continuously dig deeper and support the mine shaft and tunnel roof or surrounding rock. Most of the existing support devices use single hydraulic supports, and the corresponding supporting components are supported on the mine shaft and tunnel roof or surrounding rock through hydraulic power. This type of single hydraulic support has the following disadvantages when used in practice: First, the hydraulic system used to drive the support to support the mine shaft and tunnel roof or surrounding rock is usually very complicated and difficult to move and circulate, and the flexibility is insufficient when used on site; second, in order to prevent the hydraulic fluid from leaking, the processing accuracy of the corresponding parts must be very high, the manufacturing cost is relatively high, and the structure of the support is also developed in the direction of complexity. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a blasting type single supporting pillar for a mine.

[0004] The present invention is achieved through the following technical solutions.

[0005] The present invention provides an explosive-type single mine support pillar, which includes a base and a top rod. The base is provided with a receiving groove. One end of the top rod is fixedly connected with an elastic member and is sleeved in the receiving groove. The other end of the top rod extends outward. Detonators and gunpowder are filled in sequence between the bottom of the receiving groove and the elastic member. The detonator is electrically connected to a detonator arranged outside through a wire.

[0006] The elastic member is made of 7075 aluminum alloy.

[0007] A height adjuster is also embedded in the push rod.

[0008] The height adjuster is a cylindrical helical compression spring.

[0009] A limiting hole is also provided on the outer peripheral surface of the base, and the limiting hole is connected to the accommodating groove. When the detonator is started and the gunpowder is detonated by the detonator, the push rod and the elastic member are caused to slide outward, and at the same time, the elastic member is caused to deform and fit into the limiting hole.

[0010] The base is also provided with a vent hole which is communicated with the containing groove.

[0011] The base or the top rod is in the shape of a cylinder as a whole.

[0012] The outer diameter of the base is 170 mm, and the length of the base is 2000 mm.

[0013] The end of the top rod is also fixedly connected with a tray A.

[0014] The end of the push rod is also fixedly connected with a tray B.

[0015] The beneficial effect of the present invention is that: by adopting the technical scheme of the present invention, when the detonator is started and the gunpowder is detonated by the detonator, the push rod and the elastic part are caused to slide outward, and at the same time, the elastic part is caused to be deformed and fitted into the limiting hole, thereby achieving the purpose of supporting the roof or surrounding rock of the mine shaft. Compared with the commonly used single hydraulic support in the prior art, no complex hydraulic system is used to provide power, the supporting device has a simple structure, is easy to move and turn around, has high operational flexibility, does not need to consider the problem of hydraulic fluid leakage, reduces the processing accuracy requirements of corresponding components, and is conducive to reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the present invention after the gunpowder is detonated by a detonator.

[0018] In the figure: 1-base, 2-top rod, 3-elastic member, 4-detonator, 5-gunpowder, 6-lead, 7-initiator, 8-height adjuster, 9-limiting hole, 10-tray A, 11-tray B, 12-vent. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0020] like Figure 1 , Figure 2 As shown, the present invention provides an explosive-type single-body mine support pillar, including a base 1 and a top rod 2, wherein a receiving groove is provided on the base 1, one end of the top rod 2 is fixedly connected with an elastic member 3 and is sleeved in the receiving groove, and the other end of the top rod 2 extends outward, and a detonator 4 and gunpowder 5 are filled in sequence between the bottom of the receiving groove and the elastic member 3, and the detonator 4 is electrically connected to a detonator 7 arranged outside through a wire 6.

[0021] Furthermore, the material of the elastic member 3 is preferably aluminum alloy with a grade of 7075. A height adjuster 8 is also embedded in the top rod 2. The height adjuster 8 is a cylindrical helical compression spring.

[0022] In addition, a limiting hole 9 is provided on the outer circumference of the base 1, and the limiting hole 9 is connected to the receiving groove. When the detonator 7 is started and the gunpowder 5 is detonated by the detonator 4, the top rod 2 and the elastic member 3 are caused to slide outward, and the elastic member 3 is caused to deform and fit into the limiting hole 9. The base 1 or the top rod 2 is cylindrical in shape as a whole. The outer diameter of the base 1 is 170 mm, and the length of the base 1 is 2000 mm. The end of the top rod 2 is also fixedly connected to a tray A10. The end of the top rod 2 is also fixedly connected to a tray B11.

[0023] By adopting the technical solution of the present invention, when the detonator is started and the gunpowder is detonated by the detonator, the push rod and the elastic part are caused to slide outward, and at the same time, the elastic part is caused to deform and fit into the limiting hole, thereby achieving the purpose of supporting the roof or surrounding rock of the mine shaft. Compared with the commonly used single hydraulic support in the prior art, no complex hydraulic system is used to provide power, the supporting device has a simple structure, is easy to move and turn around, has high operational flexibility, does not need to consider the problem of hydraulic fluid leakage, reduces the processing accuracy requirements of corresponding components, and is conducive to reducing manufacturing costs.

Claims

1. A blasting type mine single support pillar, characterized in that: The invention comprises a base (1) and a push rod (2), wherein a receiving groove is arranged on the base (1), one end of the push rod (2) is fixedly connected with an elastic member (3) and is sleeved in the receiving groove, and the other end of the push rod (2) extends outwards, and a detonator (4) and gunpowder (5) are sequentially filled between the bottom of the receiving groove and the elastic member (3), and the detonator (4) is electrically connected to an externally arranged detonator (7) through a wire (6); the elastic member (3) is made of aluminum alloy with a grade of 7075, and a limiting hole (9) is also arranged on the outer peripheral surface of the base (1), and the limiting hole (9) is communicated with the receiving groove. When the detonator (7) is started and the gunpowder (5) is detonated by the detonator (4), the push rod (2) and the elastic member (3) are prompted to slide outwards, and at the same time, the elastic member (3) is prompted to deform and sleeved in the limiting hole (9).

2. The blasting type mine single support pillar according to claim 1, characterized in that: A height adjuster (8) is also embedded in the top rod (2).

3. The blasting type mine single support pillar according to claim 2, characterized in that: The height adjuster (8) is a cylindrical helical compression spring.

4. The blasting type mine single support pillar according to claim 1, characterized in that: The base (1) is also provided with a vent hole (12), and the vent hole (12) is communicated with the containing groove.

5. The blasting type mine single support pillar according to claim 1, characterized in that: The base (1) or the top rod (2) is in the shape of a cylinder as a whole.

6. The blasting type mine single support pillar according to claim 1, characterized in that: The outer diameter of the base (1) is 170 mm, and the length of the base (1) is 2000 mm.

7. The blasting type mine single support pillar according to claim 1, characterized in that: The end of the top rod (2) is also fixedly connected to a tray A (10).

8. The blasting type mine single support pillar according to claim 1, characterized in that: The end of the top rod (2) is also fixedly connected to a tray B (11).

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