CN214196361U

CN214196361U - Tunneling and shielding device for coal mining

Info

Publication number: CN214196361U
Application number: CN202120153971.5U
Authority: CN
Inventors: 罗兵兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-09-14
Anticipated expiration: 2031-01-20

Abstract

The utility model relates to the technical field of coal mining, a tunneling shield device for coal mining, which comprises a rope net and a hydraulic column, wherein four corners of the rope net are fixedly connected with connecting ropes, four connecting ropes are fixedly connected with limit balls at one ends far away from the rope net, the upper surface of the hydraulic column is fixedly connected with a connecting block, a supporting sheet is integrally formed on the upper surface of the connecting block, a square groove is integrally formed on one side of the connecting block and the supporting sheet close to the rope net, round holes penetrating through the connecting block are integrally formed on the upper surface of the supporting sheet, and the limit balls are respectively positioned inside the four round holes; through setting up hydraulic pressure post and detachable fag end, simple structure, the quality is lighter, and convenient the building fast avoids the tunnel top to have the rubble to drop and injures the miner by a crashing object, and the fag end is conveniently dismantled with the hydraulic pressure post, can directly build the shield structure under the fag end, and the hydraulic pressure post that falls gives up the fag end, improves the security of construction.

Description

Tunneling and shielding device for coal mining

Technical Field

The utility model relates to a coal mining technical field specifically is a tunnelling of coal mining adoption shields device.

Background

Coal is an important natural resource in China and plays an important role in the development of China, and in the process of mining and tunneling, a mine needs to support a mined tunnel wall so as to avoid collapse accidents in the process of tunneling, and the condition often occurs at the top and the side wall of a tunnel.

Among the prior art, the shield device is comparatively heavy, builds inconveniently, but in the position that the entry driving machine just dug, the mine cave structure is unstable, falls the rubble from the tunnel top easily, causes huge threat to constructor's safety.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a device is shielded in tunnelling that coal mining adopted has solved the rubble problem that falls.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a tunneling shield device for coal mining comprises a rope net and a hydraulic column, wherein four corners of the rope net are fixedly connected with connecting ropes, one ends of the four connecting ropes, far away from the rope net, are fixedly connected with limit balls, the middle position of the outer wall of the hydraulic column is fixedly connected with a large connecting sheet, four sides of the lower surface of the large connecting sheet are rotatably connected with limit rods, the lower surfaces of the four limit rods are fixedly connected with small connecting sheets, the upper surface of the hydraulic column is fixedly connected with a connecting block, a supporting sheet is integrally formed on the upper surface of the connecting block, a square groove is integrally formed on one side, close to the rope net, of the connecting block and the supporting sheet, a round hole penetrating through the connecting block is integrally formed on the upper surface of the supporting sheet, the square groove is communicated with the round hole, and a hydraulic joint is fixedly connected below the large connecting sheet on the front surface of the hydraulic column, the front surface of the hydraulic column is located above the large connecting piece and is fixedly connected with a pressure release valve, the number of the hydraulic columns is four, the hydraulic columns are distributed in a rectangular mode, and the four limiting balls are located inside the four round holes respectively.

Preferably, the lower surfaces of the hydraulic columns are fixedly connected with large conical heads.

Preferably, the middle positions of the lower surfaces of the four small connecting pieces are fixedly connected with small conical heads.

Preferably, the diameter of the connecting rope is smaller than the width of the square groove.

Preferably, the diameter of the limiting ball is smaller than that of the round hole.

(III) advantageous effects

The utility model provides a device is shielded in tunnelling that coal mining adopted possesses following beneficial effect:

the utility model discloses a set up hydraulic pressure post and detachable fag end, simple structure, the quality is lighter, conveniently builds fast, and the hydraulic pressure post is fixed the fag end at the top in tunnel, can drive through the back at the entry driving machine and build fast, avoids the tunnel top loose because of the stone structure, has the rubble to drop and injures the miner by a crashing object, and the fag end is convenient to be dismantled with the hydraulic pressure post, can directly build the shield structure under the fag end, falls the hydraulic pressure post, gives up the fag end, improves the security of construction.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic view of the top-view structure of the middle-large connecting sheet of the present invention.

In the figure: 1. a rope net; 2. a hydraulic column; 3. a large connecting sheet; 4. a limiting rod; 5. a small connecting sheet; 6. a support sheet; 7. connecting blocks; 8. a pressure relief valve; 9. a circular hole; 10. a hydraulic joint; 11. a small conical head; 12. a large conical head; 13. a limiting ball; 14. connecting ropes; 15. a square groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, the utility model provides a technical solution: a tunneling shield device for coal mining comprises a rope net 1 and a hydraulic column 2, wherein four corners of the rope net 1 are fixedly connected with connecting ropes 14, one ends of the four connecting ropes 14, which are far away from the rope net 1, are fixedly connected with limiting balls 13, the middle position of the outer wall of the hydraulic column 2 is fixedly connected with a large connecting sheet 3, four sides of the lower surface of the large connecting sheet 3 are rotatably connected with limiting rods 4, the lower surfaces of the four limiting rods 4 are fixedly connected with small connecting sheets 5, the upper surface of the hydraulic column 2 is fixedly connected with a connecting block 7, the upper surface of the connecting block 7 is integrally formed with a supporting sheet 6, one side of the connecting block 7 and one side of the supporting sheet 6, which are close to the rope net 1, are integrally formed with square grooves 15, the upper surface of the supporting sheet 6 is integrally formed with round holes 9 penetrating through the connecting block 7, the square grooves 15 are communicated with the round holes 9, the front surface of the hydraulic column 2 is fixedly connected with hydraulic joints 10 below the large connecting sheet 3, the front surface of hydraulic pressure post 2 is located the top fixedly connected with relief valve 8 of big connection piece 3, and hydraulic pressure post 2 has four, and four hydraulic pressure posts 2 become the rectangle and distribute, and four spacing balls 13 are located the inside of four round holes 9 respectively, and hydraulic pressure joint 10 is connected with the hydraulic pressure pipeline on the entry driving machine, provides the oil pressure through the entry driving machine and rises hydraulic pressure post 2, and relief valve 8 can be used to the internal pressure of uninstallation hydraulic pressure post 2 for dismantle.

Further, the lower surface of the hydraulic column 2 is fixedly connected with a large conical head 12, when the support sheet 6 props against the upper wall of the tunnel, the hydraulic column 2 continues to apply pressure, the hydraulic column 2 can be inserted into the ground along with the large conical head 12 for adjusting the height of the hydraulic column 2, and the hydraulic column 2 can be stabilized.

Furthermore, the middle positions of the lower surfaces of the four small connecting pieces 5 are fixedly connected with small conical heads 11, and the small conical heads 11 can be inserted into the ground to provide stable support for the limiting rod 4.

Furthermore, the diameter of the connecting rope 14 is smaller than the width of the square groove 15, and the connecting rope 14 can freely slide up and down in the square groove 15.

Furthermore, the diameter of the limiting ball 13 is smaller than that of the round hole 9, and the limiting ball 13 can be placed into the round hole 9 of the connecting block 7 from the top of the supporting plate 6.

To sum up, the utility model discloses a work flow: when the tunnel boring machine is used, after the tunnel boring machine works, the limiting balls 13 at four corners of the rope net 1 are respectively put into the round holes 9 on the supporting sheet 6 at the top of the hydraulic column 2, the connecting rope 14 is arranged in the square groove 15, the pressure release valve 8 is screwed, a hydraulic interface on the tunnel boring machine is connected with the hydraulic joint 10 of the device, oil is supplied to the hydraulic column 2, the hydraulic column 2 jacks up the rope net 1 to the top of the tunnel, pressure is continuously applied, the large conical head 12 at the bottom of the hydraulic column 2 is inserted into the ground through the extension of the hydraulic column 2, the limiting rod 4 is propped outwards, the limiting rod 4 is driven to move downwards in the downward movement process of the hydraulic column 2, the small conical head 11 is inserted into the ground, the small connecting sheet 5 is increased in the contact area of the ground to support the hydraulic column 2, the limiting rod 4 can prevent the hydraulic column 2 from turning over, crushed stones falling from the top of the tunnel are caught by the rope net 1 at the top, when the supporting device of the tunnel is installed, the supporting device is directly built below the rope net 1, together with the rope net 1, the hydraulic column 2 is extruded on the upper wall of the tunnel, after the building is completed, the hydraulic column 2 is lowered through the pressure release valve 8, the limiting ball 13 slides out of the round hole 9 in the connecting block 7, together with the rope net 1 and the connecting rope 14, the hydraulic column 2 is discarded, and then the hydraulic column 2 is taken out.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tunnelling shield device that coal mining adopted, includes rope net (1) and hydraulic column (2), its characterized in that: the four corners of the rope net (1) are fixedly connected with connecting ropes (14), four ends, far away from the rope net (1), of the connecting ropes (14) are fixedly connected with limiting balls (13), the middle positions of the outer wall of the hydraulic column (2) are fixedly connected with large connecting pieces (3), four sides of the lower surface of each large connecting piece (3) are rotatably connected with limiting rods (4), the lower surfaces of the four limiting rods (4) are fixedly connected with small connecting pieces (5), the upper surface of the hydraulic column (2) is fixedly connected with a connecting block (7), a supporting piece (6) is integrally formed on the upper surface of the connecting block (7), a square groove (15) is integrally formed on one side, close to the rope net (1), of the connecting block (7) and the supporting piece (6), and a round hole (9) penetrating through the connecting block (7) is integrally formed on the upper surface of the supporting piece (6), square groove (15) with round hole (9) are linked together, the front surface of hydraulic pressure post (2) is located the below fixedly connected with hydraulic pressure of big connection piece (3) connects (10), the front surface of hydraulic pressure post (2) is located the top fixedly connected with relief valve (8) of big connection piece (3), hydraulic pressure post (2) have four, four hydraulic pressure post (2) become the rectangle and distribute, four spacing ball (13) are located four respectively the inside of round hole (9).

2. A tunnelling shield for coal mining as claimed in claim 1, in which: the lower surfaces of the hydraulic columns (2) are fixedly connected with large conical heads (12).

3. A tunnelling shield for coal mining as claimed in claim 1, in which: the middle positions of the lower surfaces of the four small connecting sheets (5) are fixedly connected with small conical heads (11).

4. A tunnelling shield for coal mining as claimed in claim 1, in which: the diameter of the connecting rope (14) is smaller than the width of the square groove (15).

5. A tunnelling shield for coal mining as claimed in claim 1, in which: the diameter of the limiting ball (13) is smaller than that of the round hole (9).