CN214836451U

CN214836451U - Tunneling support device for lower coal seam roadway of goaf

Info

Publication number: CN214836451U
Application number: CN202120552604.2U
Authority: CN
Inventors: 杨彦朋; 杨鹏; 郝建军; 丁志成
Original assignee: Shenmu Haihong Mining Co ltd
Current assignee: Shenmu Haihong Mining Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-11-23
Anticipated expiration: 2031-03-18

Abstract

The utility model discloses a goaf lower part coal seam tunnel tunnelling supporting device, including first connecting block, first backup pad, third backup pad, second connecting block and second backup pad, first backup pad is located the below of second backup pad, the one end of first backup pad and second backup pad welds with first connecting block respectively, the other end of first backup pad and second backup pad welds with the second connecting block respectively, square groove has been seted up respectively at both ends around the second backup pad, two the relative one side of third backup pad has welded square piece, two the square inslot at both ends around the injection second backup pad that square piece on the third backup pad corresponds respectively, two the relative one end of third backup pad both sides has welded the fixed block respectively, the fixed block passes through the bolt and is fixed with the second backup pad. The utility model has the advantages of set up double-deck backup pad to the supporting area of increase backup pad strengthens the holding power.

Description

Tunneling support device for lower coal seam roadway of goaf

Technical Field

The utility model relates to a coal road struts technical field, specifically is collecting space area lower part coal seam tunnelling supporting device.

Background

The goaf is a 'cavity' generated below the ground surface by artificial excavation or natural geological motion, the existence of the goaf causes great safety problems in the safety production of mines, and personnel and mechanical equipment can fall into the goaf and be damaged.

Generally, a supporting device is additionally arranged in a coal seam roadway at the lower part of the goaf, and the coal seam roadway at the lower part of the goaf is supported by the supporting device. The supporting plate on the general supporting device is only single-layer, the area of the supporting plate is limited, and the supporting effect has certain limitation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a goaf lower part coal seam roadway tunnelling supporting device possesses and sets up double-deck backup pad to the support area of increase backup pad strengthens the advantage of support ability, has solved the backup pad on the supporting device and has only the individual layer, and the area of backup pad is limited, and the supporting effect has the problem of certain limitation.

In order to achieve the above object, the utility model provides a following technical scheme: the coal seam roadway tunneling support device at the lower part of the goaf comprises a first connecting block, a first support plate, a third support plate, a second connecting block and a second support plate, vertical plates are respectively welded at two ends of one opposite side of the first supporting plate and the second supporting plate, the first supporting plate is positioned below the second supporting plate, one end of the first supporting plate and one end of the second supporting plate are respectively welded with the first connecting block, the other end of the first supporting plate and the other end of the second supporting plate are respectively welded with the second connecting block, the front end and the rear end of the second supporting plate are respectively provided with a square groove, two square blocks are welded on one opposite side of the third supporting plate respectively, the square blocks on the third supporting plate are correspondingly inserted into the square grooves at the front end and the rear end of the second supporting plate respectively, two fixing blocks are welded at the opposite ends of the two sides of the third supporting plate respectively, and the fixing blocks are fixed with the second supporting plate through bolts.

Preferably, two the welding has the support frame between the first backup pad of the relative one side of riser and the second backup pad, and the support frame adopts the triangle structural design.

Preferably, the slot has been seted up to one side that first connecting block deviates from first backup pad and second backup pad, has seted up the round hole on the first connecting block, and the welding of one side that the second connecting block deviates from first backup pad and second backup pad has the inserted block, has seted up the round hole on the inserted block, inserted block and slot phase-match.

Preferably, square piece and square groove phase-match, third backup pad upper surface and second backup pad upper surface parallel and level.

Preferably, the fixing block is provided with a through hole, both sides of the front end and the rear end of the second supporting plate are respectively provided with a screw hole, and the bolt penetrates through the through hole and is screwed into the screw hole.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses a set up first backup pad, second backup pad and third backup pad, reached and set up double-deck backup pad to the support area of increase backup pad strengthens the effect of support capacity. The utility model discloses be provided with first backup pad, second backup pad and third backup pad, the riser has been welded respectively at the both ends of the relative one side of first backup pad and second backup pad, and the welding has the support frame between the first backup pad of the relative one side of two risers and the second backup pad, and the support frame adopts the triangle structure. Square grooves are formed in the front end and the rear end of the second supporting plate respectively, square blocks are welded on one opposite sides of the two third supporting plates respectively, the square blocks are inserted into the square grooves, bolts penetrate through the fixing blocks and are screwed into the screw holes, and the third supporting plates and the second supporting plates are fixed. When the first supporting plate, the second supporting plate and the third supporting plate support a coal seam roadway at the lower part of the goaf, the second supporting plate and the third supporting plate are embedded into the wall of the coal seam roadway, the first connecting blocks are in butt joint with the second connecting blocks, the inserting blocks are inserted into the inserting grooves, and the inserting blocks penetrate through the round holes through expansion screws and are nailed into the wall of the coal seam roadway at the lower part of the goaf. The first supporting plate and the second supporting plate are supported in a double-layer mode, the supporting area is increased through the third supporting plate, and the supporting capacity is enhanced.

Drawings

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

fig. 2 is a schematic view of a front view connection structure of the first support plate and the second support plate of the present invention;

fig. 3 is a schematic top view of the present invention;

fig. 4 is an enlarged schematic view of fig. 3 a according to the present invention;

fig. 5 is a schematic view of a third supporting plate of the present invention illustrating a top-view connection structure.

In the figure: 1. a first connection block; 2. a first support plate; 3. a support frame; 4. a third support plate; 5. a vertical plate; 6. a second connecting block; 7. inserting a block; 8. a fixed block; 9. a bolt; 10. a second support plate; 11. a square groove; 12. a screw hole; 13. a circular hole; 14. a square block; 15. and (4) a slot.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, the present invention provides an embodiment: goaf lower part coal seam roadway tunnelling supporting device, including first connecting block 1, first backup pad 2, third backup pad 4, second connecting block 6 and second backup pad 10, first backup pad 2 is located the below of second backup pad 10, the one end of first backup pad 2 and second backup pad 10 welds with first connecting block 1 respectively, slot 15 has been seted up to one side that first connecting block 1 deviates from first backup pad 2 and second backup pad 10, round hole 13 has been seted up on first connecting block 1. The other end of first backup pad 2 and second backup pad 10 welds with second connecting block 6 respectively, and one side welding that second connecting block 6 deviates from first backup pad 2 and second backup pad 10 has inserted block 7, has seted up round hole 13 on inserted block 7, inserted block 7 and slot 15 phase-match. The first connecting blocks 1 are in butt joint with the second connecting blocks 6, and the inserting blocks 7 are inserted into the inserting grooves 15 and are driven into the wall of the coal seam roadway at the lower part of the goaf through expansion screws penetrating through the round holes 13. Risers 5 have been welded respectively at the both ends of the relative one side of first backup pad 2 and second backup pad 10, and the welding has support frame 3 between the first backup pad 2 and the second backup pad 10 of the relative one side of two risers 5, and support frame 3 adopts the triangle structural design. The first supporting plate 2 and the second supporting plate 10 are supported in a double-layer mode, and the supporting frame 3 reinforces the first supporting plate 2 and the second supporting plate 10.

Square grooves 11 are respectively formed in the front end and the rear end of the second supporting plate 10, square blocks 14 are welded on one opposite sides of the two third supporting plates 4 respectively, the square blocks 14 on the two third supporting plates 4 are correspondingly inserted into the square grooves 11 in the front end and the rear end of the second supporting plate 10 respectively, the square blocks 14 are matched with the square grooves 11, and the upper surface of the third supporting plate 4 is flush with the upper surface of the second supporting plate 10. The opposite ends of two sides of the third supporting plates 4 are respectively welded with a fixing block 8, the fixing blocks 8 are fixed with a second supporting plate 10 through bolts 9, through holes are formed in the fixing blocks 8, screw holes 12 are respectively formed in the two sides of the front end and the rear end of the second supporting plate 10, and the bolts 9 penetrate through the through holes and are screwed into the screw holes 12. When the first supporting plate 2, the second supporting plate 10 and the third supporting plate 4 support a coal seam roadway at the lower part of the goaf, the second supporting plate 10 and the third supporting plate 4 are embedded into the wall of the coal seam roadway, the supporting area is increased through the third supporting plate 4, and the supporting capacity is enhanced.

The working principle is as follows: the first connecting blocks 1 are butted with the second connecting blocks 6, and the inserting blocks 7 are inserted into the inserting grooves 15 and are driven into the wall of the coal seam roadway at the lower part of the goaf through expansion screws penetrating through the round holes 13; when the first supporting plate 2, the second supporting plate 10 and the third supporting plate 4 support a coal seam roadway at the lower part of the goaf, the second supporting plate 10 and the third supporting plate 4 are embedded into the wall of the coal seam roadway, and the supporting area is increased through the third supporting plate 4.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Goaf lower coal seam roadway driving support device, including first connecting block (1), first backup pad (2), third backup pad (4), second connecting block (6) and second backup pad (10), its characterized in that: risers (5) are welded at two ends of one side, opposite to the first supporting plate (2) and the second supporting plate (10), of the first supporting plate (2) respectively, the first supporting plate (2) is located below the second supporting plate (10), one ends of the first supporting plate (2) and the second supporting plate (10) are welded with the first connecting block (1) respectively, the other ends of the first supporting plate (2) and the second supporting plate (10) are welded with the second connecting block (6) respectively, square grooves (11) are formed in the front end and the rear end of the second supporting plate (10) respectively, square blocks (14) are welded at one side, opposite to the two third supporting plates (4), the square blocks (14) on the two third supporting plates (4) are correspondingly inserted into the square grooves (11) at the front end and the rear end of the second supporting plate (10) respectively, fixing blocks (8) are welded at the opposite ends of the two sides of the two third supporting plates (4) respectively, the fixing block (8) is fixed with the second supporting plate (10) through a bolt (9).

2. The gob lower coal seam roadway excavation supporting device according to claim 1, characterized in that: two welding has support frame (3) between first backup pad (2) and second backup pad (10) of riser (5) relative side, and support frame (3) adopt the design of triangle structure.

3. The gob lower coal seam roadway excavation supporting device according to claim 1, characterized in that: slot (15) have been seted up to one side that first connecting block (1) deviates from first backup pad (2) and second backup pad (10), have seted up round hole (13) on first connecting block (1), and one side welding that second connecting block (6) deviate from first backup pad (2) and second backup pad (10) has inserted block (7), has seted up round hole (13) on inserted block (7), and inserted block (7) and slot (15) phase-match.

4. The gob lower coal seam roadway excavation supporting device according to claim 1, characterized in that: the square block (14) is matched with the square groove (11), and the upper surface of the third supporting plate (4) is flush with the upper surface of the second supporting plate (10).

5. The gob lower coal seam roadway excavation supporting device according to claim 1, characterized in that: the fixing block (8) is provided with a through hole, the two sides of the front end and the rear end of the second supporting plate (10) are respectively provided with a screw hole (12), and the bolt (9) penetrates through the through hole and is screwed into the screw hole (12).