Coal mine tunnel supporting device

Abstract

The utility model discloses a coal mine tunnel supporting device which comprises an H-shaped female support, an H-shaped male support and two side top plates, two pieces of channel steel are fixedly arranged at the upper end of the H-shaped female support respectively, openings of the two pieces of channel steel face the same direction, and square steel matched with the channel steel is fixedly arranged at the upper end of the H-shaped male support respectively. Inserting rods are fixedly arranged on the two sides of the bottom face of the side top plate respectively, and inserting holes matched with the inserting rods are formed in the top of the H-shaped female support and the top of the H-shaped male support respectively. By adjusting the position of the square steel in the channel steel, the purpose of adjusting the width of the roadway supporting device is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine roadway support equipment, and particularly relates to an adjustable coal mine roadway support device. Background Technique

[0002] As an important passage for coal transportation and ventilation in coal mines, the stability and safety of coal mine roadways are directly related to the production efficiency of coal mines and the lives of workers. Coal mine roadway support is an important link to ensure the safety of coal mine production. Therefore, reasonable support design and construction are crucial for ensuring the safety of coal mine production.

[0003] The utility model with the publication number of CN217712619U discloses a coal mine roadway support system, which includes a support roof. Two groups of slot bodies are respectively extended from the lower ends of both sides of the support roof. Two groups of support platforms are respectively and fittingly installed on the lower end faces of the two groups of slot bodies. A connecting bridge plate is inlaid between the two groups of support platforms, and the connecting bridge plate is attached to the lower end face of the support roof. Anti-slip convex strips are extended from the front and rear end faces of the support platform, and the anti-slip convex strips are attached to the inside of the slot body. A support is extended from the lower end face of the support platform, and a threaded support member is installed at the lower end of the support. The utility model effectively improves the assembly efficiency and ensures that there is no sliding phenomenon between the support platform and the support roof during support. However, the sizes of mine tunnels in different sections of coal mines are different. Since the width of the support system is fixed, it can only be used for support in coal mine roadways suitable for its width, which increases the limitation of the use of the support system and brings inconvenience to users. Therefore, it is necessary to design a coal mine roadway support device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a coal mine roadway support device to solve the problem that the sizes of mine tunnels in different sections of coal mines are different. Since the width of the support system is fixed, it can only be used for support in coal mine roadways suitable for its width, which increases the limitation of the use of the support system and brings inconvenience to users in the above-mentioned background technique.

[0005] To solve the above problems, the specific technical solution of a coal mine roadway support device of the utility model is as follows:

[0006] A coal mine roadway support device includes an H-shaped mother support, an H-shaped male support, and two side roofs. Two channel steels are respectively and fixedly arranged at the upper end of the H-shaped mother support, and the openings of the two channel steels face the same direction. Square steels matched with the channel steels are respectively and fixedly arranged at the upper end of the H-shaped male support. Insertion rods are respectively and fixedly arranged on both sides of the bottom surface of the side roof. Insertion holes matched with the insertion rods are respectively arranged at the tops of the H-shaped mother support and the H-shaped male support.

[0007] Further, cross beams are respectively and fixedly arranged on the H-shaped mother support and the H-shaped male support, and jacks are assembled on the cross beams.

[0008] Furthermore, an installation base is fixedly provided at the bottom of the jack, and several assembly holes are provided on the installation base.

[0009] Furthermore, the jack is a hydraulic jack.

[0010] Furthermore, a positioning groove is provided at the top of the piston of the jack, a positioning hole is provided on the bottom surface of the side top plate, and a positioning convex block matching with the positioning groove is provided in the positioning hole.

[0011] Furthermore, support bases are respectively and fixedly provided on the H-shaped female bracket and the H-shaped male bracket.

[0012] Furthermore, reinforcing ribs are provided between the H-shaped female bracket and the support base, and reinforcing ribs are also provided between the H-shaped male bracket and the support base.

[0013] Furthermore, threaded through holes are provided on the side wall of the channel steel, threaded rods are provided in the threaded through holes, and hand wheels are fixedly provided at the ends of the threaded rods.

[0014] Furthermore, a reinforcing bracket is fixedly connected between the channel steel and the H-shaped female bracket.

[0015] Furthermore, several hooks are linearly arrayed on the front facade of the side top plate, and the hooks are fixedly connected with the side top plate.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] During use, the square steel is placed into the channel steel, the position of the square steel in the channel steel is adjusted so that the width between the H-shaped female bracket and the H-shaped male bracket conforms to the width in the coal mine roadway, and then the side top plate is respectively installed on the H-shaped female bracket 1 and the H-shaped male bracket 2 through the cooperation of the insertion rod and the insertion hole. The whole installation process is convenient and efficient, shortening the installation time, improving the production efficiency, further increasing the practicability of the coal mine roadway support device, avoiding the enterprise from purchasing coal mine roadway support devices with different widths in order to cope with coal mine roadways of different widths, thus saving costs and improving the production benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional schematic diagram of the structure of an embodiment of the utility model;

[0019] Figure 2 is a three-dimensional structure schematic diagram of the H-shaped female bracket in an embodiment of the utility model;

[0020] Figure 3 is a three-dimensional structure schematic diagram of the H-shaped male bracket in an embodiment of the utility model;

[0021] Figure 4Schematic three-dimensional structure diagram of the side roof plate in the embodiment of the present utility model;

[0022] Figure 5 Schematic three-dimensional structure diagram of the jack in the embodiment of the present utility model;

[0023] Reference numerals:

[0024] 1. H-shaped female bracket; 101. Channel steel; 1011. Threaded through hole; 1012. Threaded rod; 1013. Handwheel; 102. Reinforcing bracket;

[0025] 2. H-shaped male bracket; 201. Square steel;

[0026] 3. Side roof plate; 301. Insertion rod; 3011. Insertion hole; 302. Positioning hole; 303. Positioning convex block; 304. Hook;

[0027] 4. Cross beam;

[0028] 5. Jack; 501. Installation base; 502. Assembly hole; 503. Positioning groove;

[0029] 6. Support base; 601. Reinforcing rib. Detailed implementation manners

[0030] In order to better understand the purpose, structure and function of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0031] Embodiment, referring to Figures 1 to 5 , this embodiment discloses a coal mine roadway support device, including an H-shaped female bracket 1, an H-shaped male bracket 2 and two side roof plates 3. At the upper ends of the two columns of the H-shaped female bracket 1, two channel steels 101 are respectively fixedly provided. At the upper ends of the two columns of the H-shaped male bracket 2, square steels 201 matching with the channel steels 101 are respectively fixedly provided. The openings of the two channel steels 101 face the same direction, preferably facing forward or backward at the same time, which is convenient for the square steel 201 to be assembled into the channel steel 101. By adjusting the position of the square steel 201 in the channel steel 101, the use width of the coal mine roadway support device can be adjusted to adapt to coal mine roadways of different widths; on both sides of the bottom surface of the side roof plate 3, insertion rods 301 are respectively fixedly provided. Insertion holes 3011 matching with the insertion rods 301 are respectively provided at the tops of the H-shaped female bracket 1 and the H-shaped male bracket 2. The side roof plate 3 is respectively installed on the H-shaped female bracket 1 and the H-shaped male bracket 2 through the cooperation of the insertion rods 301 and the insertion holes 3011. The whole installation process is convenient and efficient, shortening the installation time and improving the production efficiency.

[0032] Cross beams 4 are respectively and fixedly provided on the H-shaped female support 1 and the H-shaped male support 2. The cross beam 4 is equipped with a jack 5. The bottom of the jack 5 is fixedly provided with an installation base 501. The installation base 501 is provided with several assembly holes 502. The side roof plate 3 is jacked up by the jack 5 to adjust the height of the support device so as to adapt to coal mine roadways of different heights, enabling the side roof plate 3 to support the top of the coal mine roadway and prevent collapse. A positioning groove 503 is provided at the top of the piston of the jack 5. A positioning hole 302 is provided on the bottom surface of the side roof plate 3. A positioning convex block 303 that is matched with the positioning groove 503 is provided in the positioning hole 302. When the jack 5 abuts against the side roof plate 3, the positioning convex block 303 is just located in the positioning groove 503, making the support more stable.

[0033] The jack 5 is a hydraulic jack, and the hydraulic jack has the characteristics of compact structure, stable operation, large jacking force, and self-locking.

[0034] Support bases 6 are respectively and fixedly provided on the H-shaped female support 1 and the H-shaped male support 2. The support bases 6 can make the H-shaped female support 1 and the H-shaped male support 2 placed more stably in the coal mine roadway. Reinforcing ribs 601 are provided between the H-shaped female support 1 and the support base 6, and reinforcing ribs 601 are also provided between the H-shaped male support 2 and the support base 6, increasing the firmness of the coal mine roadway support device.

[0035] Threaded through holes 1011 are provided on the side wall of the channel steel 101. The threaded through holes 1011 are equipped with threaded rods 1012. A hand wheel 1013 is fixedly provided at the end of the threaded rod 1012. By rotating the hand wheel 1013, the threaded rod 1012 is advanced in the threaded through hole 1011, thereby squeezing the square steel 201 inside the channel steel 101 and making the connection between the H-shaped female support 1 and the H-shaped male support 2 more firm. As Figure 2 shown, a reinforcing bracket 102 is fixedly connected between the channel steel 101 and the H-shaped female support 1. The reinforcing bracket 102 plays a role in supporting the channel steel 101, making the structure of the coal mine roadway support device more stable.

[0036] A plurality of hooks 304 are linearly arrayed on the front facade of the side roof plate 3. The hooks 304 are fixedly connected to the side roof plate 3. A tarpaulin can be hung between two side roof plates 3 through the hooks 304 to prevent coal slag from falling from the top of the coal mine roadway and injuring the workers below.

[0037] Working principle: When in use, place the square steel 201 into the channel steel 101, adjust the position of the square steel 201 in the channel steel 101, turn the hand wheel 1013, and fix the square steel 201 in the channel steel 101 through the threaded rod 1012, so that the width between the H-shaped female bracket 1 and the H-shaped male bracket 2 conforms to the width in the coal mine roadway, which increases the practicability of the coal mine roadway support device. Adjust the height of the jack 5, use the jack 5 to support the side roof 3, resist the top of the coal mine roadway, and support the coal mine roadway. Hang a tarpaulin between the two side roofs 3 to prevent the top coal cinder from falling and injuring the workers below.

[0038] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A coal mine tunnel support device, characterized in that: The invention comprises an H-shaped female bracket (1), an H-shaped male bracket (2) and two side top plates (3), wherein two channel steels (101) are fixedly provided on the upper end of the H-shaped female bracket (1), the openings of the two channel steels (101) face the same direction, and square steels (201) matched with the channel steels (101) are fixedly provided on the upper end of the H-shaped male bracket (2); plug rods (301) are fixedly provided on both sides of the bottom surface of the side top plates (3), and plug holes (3011) matched with the plug rods (301) are provided on the tops of the H-shaped female bracket (1) and the H-shaped male bracket (2).

2. The coal mine tunnel support device according to claim 1, characterized in that: A crossbeam (4) is fixedly provided on the H-shaped female bracket (1) and the H-shaped male bracket (2), respectively, and the crossbeam (4) is equipped with a jack (5).

3. The coal mine tunnel support device according to claim 2, characterized in that: A mounting base (501) is fixedly provided at the bottom of the jack (5), and the mounting base (501) is provided with a plurality of assembly holes (502).

4. The coal mine tunnel support device according to claim 3, characterized in that: The jack (5) is a hydraulic jack.

5. The coal mine tunnel support device according to claim 2, characterized in that: A positioning groove (503) is provided on the top of the piston of the jack (5), a positioning hole (302) is provided on the bottom surface of the side top plate (3), and a positioning protrusion (303) matched with the positioning groove (503) is provided in the positioning hole (302).

6. The coal mine tunnel support device according to claim 1, characterized in that: The H-shaped female bracket (1) and the H-shaped male bracket (2) are respectively fixedly provided with a support base (6).

7. The coal mine tunnel support device according to claim 6, characterized in that: A reinforcing rib (601) is provided between the H-shaped female bracket (1) and the support base (6), and a reinforcing rib (601) is also provided between the H-shaped male bracket (2) and the support base (6).

8. The coal mine tunnel support device according to claim 1, characterized in that: A threaded through hole (1011) is provided on the side wall of the channel steel (101), a threaded through hole (1011) is provided with a threaded rod (1012), and a hand-turned wheel (1013) is fixedly provided at the end of the threaded rod (1012).

9. The coal mine tunnel support device according to claim 1, characterized in that: A reinforcing bracket (102) is fixedly connected between the channel steel (101) and the H-shaped mother bracket (1).

10. The coal mine tunnel support device according to claim 1, characterized in that: The front elevation linear array of the side top plate (3) has a plurality of hooks (304), and the hooks (304) are fixedly connected to the side top plate (3).

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