CN220365610U - Temporary support device for coal mining and tunneling of coal mine - Google Patents

Abstract

The utility model discloses a temporary support device for coal mine excavation, which belongs to the field of temporary support devices. It includes a roof. Support mechanisms are respectively provided below both sides of the roof. The cooperation between the roof and the support mechanism is provided. In use, according to the width of the coal mining tunnel, push the side plates in both directions through the universal wheels on the bottom surface of the bottom plate to move the side plates out of the side walls of the adjusting plate until the side plates are placed on both sides of the tunnel, and then, according to the mining At the same time, the handwheel located at the front end of the bottom plate is rotated to increase the height of the coal tunnel. The handwheel will drive the threaded hole through the first rotating rod to make the connecting block move relatively, and allow the connecting rod to change its inclination to push upward through the jacking rod. Raise the side plates until the roof plate is on the top of the coal mining tunnel, so that the roof plate and the support mechanisms on both sides can be quickly adjusted and built in the tunnel according to the width and height of the coal mining tunnel to form a temporary support structure, and It can effectively support and protect the tunnel.

Description

A temporary support device for coal mine excavation

Technical field

The utility model relates to the field of temporary support devices, in particular to a temporary support device for coal mining and excavation.

Background technique

In the field of coal mining, due to the restrictions and necessity of coal mine excavation, manual tunnels need to be dug in the coal seams. Since the rock quality of the coal seams is mostly fragile, the tunnels need to be supported by special support devices. coal seam to prevent safety hazards caused by coal seam falling.

In the existing technology, the main processes for temporary support of coal mining tunnels are generally opening anchor holes, erecting anchor nets, and driving resin bags and anchor rods into the anchor holes. In narrow sections of the tunnel, manual lifting is required. Anchor nets use pneumatic hammers to drive explosive bags and anchor rods. However, when building temporary support devices in coal mining tunnels through the above method, it is not only cumbersome to operate, but also time-consuming and labor-intensive, and also reduces work efficiency and the progress of coal mining. At the same time, because the temporary support device cannot be adjusted, it is impossible to quickly build a temporary support device in the tunnel according to the width and height of the tunnel.

Utility model content

The main purpose of this utility model is to provide a temporary support device for coal mine excavation, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical solution adopted by this utility model is:

A temporary support device for coal mine excavation, including a roof, with support mechanisms respectively provided on both sides of the roof, and the support mechanism includes a concave frame, a two-way adjusting screw, a connecting block, a concave block, a connecting rod, Side plates, adjustment plates and diagonal braces. The two-way adjustment screws are movably connected to the inner bottom surface of the concave frame through the first rotating rods at both ends, and the two connecting blocks pass through the threaded holes on the front wall and the two-way adjustment screws respectively. Movably connected, the side plates are movably connected to the top of the bottom plate through jacking rods on both sides of the bottom surface, and the top of the jacking rod and the top surface of the connecting block are fixedly connected to concave blocks, and the connecting rods are connected through both ends of the The second rotating rod is movably connected to the lifting rod and the concave block on the connecting block respectively. The adjusting plate is fixedly connected to the top of the side plate and movably connected to the side wall of the top plate, and there is also a gap between the side plate and the adjusting plate. Fixed connection with symmetrical diagonal braces.

Preferably, the left and right side walls of the top plate are respectively provided with inner cavities, and the left and right sides of the bottom surface of the top plate are respectively provided with a set of symmetrical movable openings connected to the inner cavities.

Preferably, the concave frame is fixedly installed on the top surface of the base plate, and the bottom surface of the base plate is fixedly installed with a set of front-to-back symmetrical universal wheels. The inner bottom surface of the concave frame is provided with a movable groove, and the inner wall of the movable groove is provided with a movable groove. Sliding openings are provided on the left and right sides respectively, first rotation holes are provided at the front and rear ends of the movable groove, and side grooves are provided on the left and right side walls of the recess of the concave frame.

Preferably, the first rotating rod is fixedly installed at the front and rear ends of the two-way adjusting screw, and the first rotating rod is movably installed in the first rotating hole. The end wall of the first rotating rod at the front end is also fixedly installed. Handwheels, the front walls of the two connecting blocks are respectively provided with threaded holes and are threadedly connected to the two-way adjusting screws through the threaded holes, and the left and right side walls of the connecting block are also fixedly installed with sliding blocks and movable installed on the sliding block. Intraoral.

Preferably, a set of symmetrical lifting rods are fixedly installed on the bottom surface of the side plate and inserted into the side groove, and the bottom end of the lifting rod and the top surface of the connecting block are respectively fixedly installed with concave blocks, and the concave blocks are fixedly installed. Second rotation holes are respectively provided on both sides of the inner wall of the recess, and second rotation rods are fixedly installed on both sides of the front and rear ends of the connecting rod, and the second rotation rod is movably installed in the second rotation hole.

Preferably, the adjustment plate is fixedly installed on the top surface of the side plate, and the adjustment plate is movably installed in the inner cavity. A set of symmetrical diagonal struts are also fixedly installed between the bottom surface of the adjustment plate and the inner side wall of the side plate. , and the diagonal support rod passes through the movable opening.

Compared with the existing technology, the utility model has the following beneficial effects:

In this utility model, the roof plate and the supporting mechanism are used in conjunction with each other. According to the width of the coal mining tunnel, the universal wheels on the bottom surface of the bottom plate push the side plates in both directions to move the side plates out of the side walls of the adjusting plate. , until the side plates are placed on both sides of the tunnel, and then simultaneously rotate the handwheel located at the front end of the bottom plate according to the height of the coal mining tunnel. The handwheel will drive the threaded hole through the first rotating rod to make the connecting block move relative to each other, and During the tilt change of the connecting rod, the side plate is lifted upward through the jacking rod until the top plate is placed on the top of the coal mining tunnel, so that the roof plate and the support mechanisms on both sides can be used according to the width and width of the coal mining tunnel. The height is quickly adjusted in the tunnel to form a temporary support structure, which effectively supports and protects the tunnel. The construction operation is simple and convenient and saves time and effort, thereby improving work efficiency and the progress of coal mining.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of the utility model;

Figure 2 is a schematic diagram of the overall structure of the roof of the present utility model;

Figure 3 is a schematic diagram of the overall structure of the concave frame of the present utility model;

Figure 4 is an exploded schematic diagram of the structure of the support mechanism of the present invention.

In the picture: 1. Top plate; 2. Supporting mechanism; 3. Inner cavity; 4. Movable port; 5. Bottom plate; 6. Universal wheel; 7. Concave frame; 8. Movable slot; 9. Sliding port; 10. First rotating hole; 11. Side groove; 12. Two-way adjusting screw; 13. First rotating rod; 14. Hand wheel; 15. Connecting block; 16. Threaded hole; 17. Sliding block; 18. Concave block; 19. Second rotating hole; 20, connecting rod; 21, second rotating rod; 22, side plate; 23, jacking rod; 24, adjusting plate; 25, diagonal support rod.

Detailed ways

In order to make it easy to understand the technical means, creative features, objectives and effects of the present utility model, the present utility model will be further elaborated below in conjunction with specific implementation modes.

As shown in Figures 1 to 4, in this embodiment, in order to quickly build a temporary support device in the coal mining tunnel through the use of the roof 1 and the support mechanisms 2 on both sides to support the tunnel, the roof The specific usage principles of 1 and both sides of the support mechanism 2 are as follows:

The entire device is moved into the coal mining tunnel through the universal wheel 6 installed on the bottom surface of the bottom plate 5. Then, the side plate 22 is pushed in the opposite direction according to the width of the tunnel, and the side plate 22 will move through the universal wheel 6 on the bottom surface of the bottom plate 5. This At this time, the side plate 22 will drive the adjustment plate 24 to move outward from the inner cavity 3 opened on both sides of the top plate 1 through the inclined support rod 25, and the inclined support rod 25 will move in the movable opening 4 opened on the bottom surface of the top plate 1 until The side plates 22 move to both sides of the tunnel, and then the universal wheel 6 is locked to prevent the device from moving. The universal wheel 6 is a universal wheel 6 with a locking function. Then, the universal wheel 6 is rotated simultaneously. There is a handwheel 14 under the front end of the concave frame 7 installed on the top surface of the base plate 5. The handwheel 14 will drive the first rotating rod 13 installed at the front and rear ends of the two-way adjustment screw 12 in the notch of the base plate 5 and in the groove of the bottom movable groove 8 on the front and rear end walls. Rotate in the first rotation hole 10 opened on the top, and the first rotation rod 13 will drive the two-way adjustment screw 12 to rotate in the movable groove 8. When the two-way adjustment screw 12 rotates, the symmetrical connecting block 15 will pass through the front end The threaded holes 16 opened in the wall make opposite movement operations in the groove of the movable groove 8 along the two-way adjusting screw 12, and the sliding blocks 17 installed on both sides of the connecting block 15 will be opened on the left and right sides of the inner wall of the movable groove 8 At this time, because the second rotating rods 21 installed on both sides of the front and rear ends of the connecting rod 20 are respectively movably installed on the two side walls of the concave block 18 installed on the bottom end of the lifting rod 23 and the top surface of the connecting block 15 Therefore, when the connecting block 15 moves, the connecting rod 20 will be forced to change its inclination, and the second rotating rod 21 rotates in the second rotating hole 19. The concave position between the connecting rod 20 and the concave frame 7 The angle formed between the bottom surfaces in the mouth will gradually become larger, and the lifting rod 23 will be pushed upward during the change, so that the lifting rod 23 can be positioned on the left and right side walls of the notch of the concave frame 7 The inside of the side groove 11 moves upward. At the same time, the side plate 22 and the adjustment plate 24 installed on the top of the side plate 22 and the top plate 1 outside the adjustment plate 24 will move upward at the same time until the top plate 1 is pressed against the top surface of the tunnel so that the handwheel 14 cannot rotate, so as to support the upper part of the tunnel through the top plate 1 and the adjusting plates 24 extending from both sides, and the diagonal support rods 25 can improve the support strength and stability of the upper part of the tunnel, and the side plates 22 can support both sides of the tunnel, so that it can be quickly adjusted and built in the tunnel according to the width and height of the coal mining tunnel to form a temporary support structure, and can effectively support and protect the tunnel, and the construction operation is simple It is convenient and saves time and effort, thereby improving work efficiency and the progress of coal mining.

In summary, the above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, without departing from the scope of the present utility model, Various improvements can be made to it and its components can be replaced with equivalents, or some of its technical features can be equivalently replaced. Everything within the spirit and principles of the utility model should be included in the protection scope of the utility model. within.

Claims (6)

1. A temporary support device for coal mine excavation, including a roof (1), characterized in that: support mechanisms (2) are respectively provided below both sides of the roof (1), and the support mechanisms (2) ) includes concave frame (7), two-way adjusting screw (12), connecting block (15), concave block (18), connecting rod (20), side plate (22), adjusting plate (24) and diagonal support rod (25 ), the two-way adjusting screw (12) is movably connected to the inner bottom surface of the concave frame (7) through the first rotating rods (13) at both ends, and the two connecting blocks (15) pass through the threaded holes on the front wall respectively. (16) is movably connected to the two-way adjusting screw (12). The side plate (22) is movably connected to the top of the bottom plate (5) through the jacking rods (23) on both sides of the bottom surface, and the top of the jacking rod (23) The concave block (18) is fixedly connected to the top surface of the connecting block (15). The connecting rod (20) is connected to the lifting rod (23) and the connecting block respectively through the second rotating rods (21) on both ends. The concave block (18) on (15) is movably connected, the adjustment plate (24) is fixedly connected to the top of the side plate (22) and movably connected in the side wall of the top plate (1), and the side plate (22) and Symmetrical diagonal braces (25) are also fixedly connected between the adjusting plates (24). 2. A temporary support device for coal mine excavation according to claim 1, characterized in that: the left and right side walls of the roof (1) are respectively provided with inner cavities (3), and the roof (1) ) is provided with a set of symmetrical movable ports (4) connected to the inner cavity (3) on the left and right sides of the bottom surface. 3. A temporary support device for coal mine excavation according to claim 2, characterized in that: the concave frame (7) is fixedly installed on the top surface of the bottom plate (5), and the bottom plate (5) A set of front-to-back symmetrical universal wheels (6) is fixedly installed on the bottom surface. A movable groove (8) is provided on the inner bottom surface of the notch of the concave frame (7), and sliding grooves (8) are provided on the left and right sides of the inner wall of the movable groove (8). The opening (9) is provided with first rotation holes (10) at the front and rear ends of the movable groove (8), and side grooves are provided on the left and right side walls of the recess of the recessed frame (7). (11). 4. A temporary support device for coal mine excavation according to claim 3, characterized in that: the front and rear ends of the two-way adjustment screw (12) are respectively fixed with first rotating rods (13), and The first rotating rod (13) is movably installed in the first rotating hole (10). A handwheel (14) is also fixedly installed on the end wall of the first rotating rod (13) at the front end. The two connecting blocks ( Threaded holes (16) are respectively provided on the front wall of 15) and are threadedly connected to the two-way adjusting screw (12) through the threaded holes (16), and sliding blocks are fixedly installed on the left and right side walls of the connecting block (15). (17) and is movably installed in the sliding port (9). 5. A temporary support device for coal mine excavation according to claim 4, characterized in that: a set of symmetrical lifting rods (23) are fixedly installed on the bottom surface of the side plate (22) and inserted and installed on the bottom surface of the side plate (22). In the side groove (11), the bottom end of the lifting rod (23) and the top surface of the connecting block (15) are respectively fixed with concave blocks (18). The two sides of the concave inner wall of the concave block (18) are respectively A second rotation hole (19) is provided, and a second rotation rod (21) is fixedly installed on both sides of the front and rear ends of the connecting rod (20), and the second rotation rod (21) is movably installed in the second rotation hole (20). 19) within. 6. A temporary support device for coal mine excavation according to claim 5, characterized in that: the adjustment plate (24) is fixedly installed on the top surface of the side plate (22), and the adjustment plate (24) Movably installed in the inner cavity (3), a set of symmetrical diagonal braces (25) are also fixedly installed between the bottom surface of the adjustment plate (24) and the inner wall of the side plate (22), and the diagonal braces (25) ) through the movable opening (4).