Stepping self-moving type ultra-thin coal seam hydraulic support

Abstract

The invention discloses a stepping self-moving type ultra-thin coal seam hydraulic support, relates to the technical field of mine underground equipment, and solves the problem that fine adjustment of the supporting position is inconvenient, the stepping self-moving type ultra-thin coal seam hydraulic support comprises a base, a moving mechanism is arranged in an inner cavity of the base, push plates are fixedly connected to the front and rear positions of the top of the moving mechanism, and a transverse plate is fixedly connected to the top of each push plate; by arranging the transverse plate, the first electric air cylinders and the supporting top plate, the top of the ultra-thin coal seam can be conveniently supported and protected, mine collapse is avoided, by arranging a second electric air cylinder and an auxiliary top plate, the top of the ultra-thin coal seam can be supported in an auxiliary mode, and the mining efficiency is improved. And by arranging a servo motor, a threaded rod and a threaded sleeve, a transverse plate, a first electric air cylinder and the supporting top plate can be driven to move, the position of the supporting top plate is finely adjusted, and the supporting effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of underground mine equipment, and in particular to a self-moving hydraulic support for ultra-thin coal seams. Background Art

[0002] Hydraulic supports are structures used to control mine pressure at the coal mining face, and also provide a safe working environment for the working face. The mining of extremely thin coal seams is relatively common, but due to the limitations of geological conditions and coal seam thickness, the mining of extremely thin coal seams still has a low degree of mechanization, especially support equipment. The level of mechanization of support equipment has a great impact on the safe production status, labor intensity and production efficiency of the mine. Although the currently used ultra-thin coal seam hydraulic supports can meet normal use needs, they still have certain defects in actual use. For example, the currently used ultra-thin coal seam hydraulic supports are relatively inconvenient to adjust, and it is not convenient to fine-tune the support position during use. When the support position is not suitable, it is often dismantled for adjustment. This method has certain safety hazards and needs to be improved. Therefore, a self-moving ultra-thin coal seam hydraulic support is proposed. Summary of the Invention

[0003] In order to improve the problem of inconvenience in fine-tuning the support position, the present invention provides a self-moving ultra-thin coal seam hydraulic support.

[0004] The present invention provides a self-moving ultra-thin coal seam hydraulic support, which adopts the following technical solutions:

[0005] A self-moving ultra-thin coal seam hydraulic support, comprising a base, an inner cavity of the base being provided with a moving mechanism, a push plate being fixedly connected to the front and rear positions of the top of the moving mechanism, a cross plate being fixedly connected to the top of the push plate, a first electric cylinder being fixedly connected to the front and rear positions of the top of the cross plate, a telescopic end of the first electric cylinder being fixedly connected to a supporting top plate, both sides of the bottom of the base being fixedly connected to an L-shaped support plate, a positioning frame being slidably connected to the outer surface of the L-shaped support plate, a second electric cylinder being fixedly connected to the top of the positioning frame, and a telescopic end of the second electric cylinder being fixedly connected to an auxiliary top plate;

[0006] The moving mechanism includes a servo motor, which is fixedly installed on the right side of the base cavity. The output end of the servo motor is fixedly connected to a threaded rod, and both sides of the outer surface of the threaded rod are threadedly connected to threaded sleeves. The top of the threaded sleeve is fixedly connected to the bottom of the push plate.

[0007] By adopting the above technical solution, it is convenient to support and protect the top of the extremely thin coal seam to avoid mine collapse. It can also drive the cross plate, the first electric cylinder and the supporting roof to move, and fine-tune the position of the supporting roof to improve the supporting effect.

[0008] Optionally, a through hole is provided on one side of the positioning frame, the inner surface of the through hole is movably connected to a limiting rod, a pull block is fixedly connected to one side of the limiting rod, and the surface of the L-shaped support plate is evenly provided with limiting holes used in conjunction with the limiting rod, and the outer surface of the limiting rod is plugged into the inner surface of the limiting hole.

[0009] By adopting the above technical solution, the position of the positioning frame can be fixed, thereby fixing the position of the auxiliary top plate, avoiding displacement of the auxiliary top plate during use, and improving stability in use.

[0010] Optionally, a slider is fixedly connected to the bottom of the threaded sleeve, a sliding groove for cooperating with the slider is provided at the bottom of the inner cavity of the base, and the outer surface of the slider is slidably connected to the inner surface of the sliding groove.

[0011] By adopting the above technical solution, the movement of the threaded sleeve can be guided and limited.

[0012] Optionally, the outer surface of the limiting rod is fixedly connected to a limiting ring, the inner cavity of the through hole is provided with a ring groove used to cooperate with the limiting ring, and the outer surface of the limiting ring is slidably connected to the inner surface of the ring groove.

[0013] By adopting the above technical solution, the movement of the limiting rod can be guided and limited.

[0014] Optionally, a compression spring is movably connected to the outer surface of the limiting rod, and one end of the compression spring close to the limiting ring is fixedly connected to the connection of the limiting ring, and one end of the compression spring away from the limiting ring is fixedly connected to the connection of the inner cavity of the ring groove.

[0015] By adopting the above technical solution, the connection tightness between the limiting rod and the limiting hole can be improved.

[0016] Optionally, through slots are provided at the front and rear positions of the top of the base, and the outer surface of the push plate is slidably connected to the inner surface of the through slot.

[0017] By adopting the above technical solution, the push plate can be easily moved.

[0018] Optionally, the four corners of the bottom of the base are movably connected to movable wheels, and both sides of the base are fixedly connected to push handles.

[0019] By adopting the above technical solution, the base can be easily moved.

[0020] Optionally, the surface of the supporting top plate is arc-shaped, and the surface of the auxiliary top plate is arc-shaped.

[0021] In summary, the present invention has the following beneficial effects:

[0022] 1. The present invention facilitates support and protection of the top of an extremely thin coal seam to prevent mine collapse by arranging a horizontal plate, a first electric cylinder and a supporting top plate. By arranging a second electric cylinder and an auxiliary top plate, the top of an extremely thin coal seam can be auxiliary supported, and the supporting top plate can be conveniently folded up and moved. By arranging a servo motor, a threaded rod and a threaded sleeve, the horizontal plate, the first electric cylinder and the supporting top plate can be driven to move, and the position of the supporting top plate can be fine-tuned to improve the supporting effect.

[0023] 2. The present invention can fix the position of the positioning frame by setting through holes, limiting rods, pull blocks and limiting holes, thereby fixing the position of the auxiliary top plate, avoiding displacement of the auxiliary top plate during use and improving stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 is a cross-sectional view of the structure of the present invention;

[0026] Figure 3 It is a right side sectional view of the structure of the present invention;

[0027] Figure 4 The structure of the present invention Figure 3 A partial enlarged view of point A in the middle.

[0028] In the figure: 1. base; 2. moving mechanism; 201. servo motor; 202. threaded rod; 203. threaded sleeve; 3. push plate; 4. cross plate; 5. first electric cylinder; 6. support top plate; 7. L-shaped support plate; 8. positioning frame; 9. second electric cylinder; 10. auxiliary top plate; 11. through hole; 12. limiting rod; 13. pulling block; 14. limiting hole; 15. slider; 16. slide groove; 17. limiting ring; 18. ring groove; 19. compression spring; 20. through groove. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example:

[0031] Please refer to Figure 1-4 A self-propelled ultra-thin coal seam hydraulic support comprises a base 1, an inner cavity of the base 1 is provided with a moving mechanism 2, the front and rear positions of the top of the moving mechanism 2 are fixedly connected to push plates 3, the top of the push plate 3 is fixedly connected to a cross plate 4, the front and rear positions of the top of the cross plate 4 are fixedly connected to a first electric cylinder 5, the telescopic end of the first electric cylinder 5 is fixedly connected to a supporting top plate 6, both sides of the bottom of the base 1 are fixedly connected to L-shaped support plates 7, the outer surface of the L-shaped support plate 7 is slidably connected to a positioning frame 8, the top of the positioning frame 8 is fixedly connected to a second electric cylinder 9, and the telescopic end of the second electric cylinder 9 is fixedly connected to an auxiliary top plate 10;

[0032] The moving mechanism 2 includes a servo motor 201, which is fixedly installed on the right side of the inner cavity of the base 1. The output end of the servo motor 201 is fixedly connected to a threaded rod 202, and both sides of the outer surface of the threaded rod 202 are threadedly connected to a threaded sleeve 203. The top of the threaded sleeve 203 is fixedly connected to the bottom of the push plate 3.

[0033] As a technical optimization solution of the present invention, further, a through hole 11 is opened on one side of the positioning frame 8, the inner surface of the through hole 11 is movably connected to the limiting rod 12, and a pull block 13 is fixedly connected to one side of the limiting rod 12. The surface of the L-shaped support plate 7 is evenly provided with limiting holes 14 used to cooperate with the limiting rod 12, and the outer surface of the limiting rod 12 is plugged into the inner surface of the limiting hole 14.

[0034] As a technical optimization solution of the present invention, further, the bottom of the threaded sleeve 203 is fixedly connected to a slider 15, and the bottom of the inner cavity of the base 1 is provided with a slide groove 16 used to cooperate with the slider 15, and the outer surface of the slider 15 is slidably connected to the inner surface of the slide groove 16.

[0035] As a technical optimization solution of the present invention, further, the outer surface of the limit rod 12 is fixedly connected to the limit ring 17, the inner cavity of the through hole 11 is provided with a ring groove 18 used to cooperate with the limit ring 17, and the outer surface of the limit ring 17 is slidably connected to the inner surface of the ring groove 18.

[0036] As a technical optimization solution of the present invention, further, the outer surface of the limiting rod 12 is movably connected with a compression spring 19, and the end of the compression spring 19 close to the limiting ring 17 is fixedly connected to the connection of the limiting ring 17, and the end of the compression spring 19 away from the limiting ring 17 is fixedly connected to the connection of the inner cavity of the ring groove 18.

[0037] As a technical optimization solution of the present invention, further, through grooves 20 are opened at the front and rear positions of the top of the base 1, and the outer surface of the push plate 3 is slidably connected to the inner surface of the through groove 20.

[0038] As a technical optimization solution of the present invention, further, the four corners of the bottom of the base 1 are movably connected with movable wheels, and both sides of the base 1 are fixedly connected with push handles.

[0039] As a technical optimization solution of the present invention, further, the surface of the supporting top plate 6 is arc-shaped, and the surface of the auxiliary top plate 10 is arc-shaped.

[0040] In this embodiment: by setting the cross plate 4, the first electric cylinder 5 and the supporting top plate 6, it is convenient to support and protect the top of the extremely thin coal seam to avoid mine collapse. By setting the second electric cylinder 9 and the auxiliary top plate 10, the top of the extremely thin coal seam can be auxiliary supported, and the supporting top plate 6 can be conveniently folded and moved. By setting the servo motor 201, the threaded rod 202 and the threaded sleeve 203, the cross plate 4, the first electric cylinder 5 and the supporting top plate 6 can be driven to move, and the position of the supporting top plate 6 can be fine-tuned to improve the supporting effect. By setting the through hole 11 and the limit rod 12, the pull block 13 and the limiting hole 14 can fix the position of the positioning frame 8, thereby fixing the position of the auxiliary top plate 10, avoiding displacement of the auxiliary top plate 10 during use, and improving the stability of use. By setting the slider 15 and the slide groove 16, the movement of the threaded sleeve 203 can be guided and limited. By setting the compression spring 19, the connection tightness between the limiting rod 12 and the limiting hole 14 can be improved. By setting the through groove 20, the push plate 3 can be easily moved in the left and right directions. By setting the moving wheel and the push handle, the base 1 can be easily moved.

[0041] The implementation principle of the present invention is as follows: when it is necessary to support the top of an extremely thin coal seam, the base 1 is moved to a designated position in the mine, the control switch of the first electric cylinder 5 is activated, the first electric cylinder 5 drives the support top plate 6 to move, so that the support top plate 6 contacts the top of the mining lamp, and the top of the extremely thin coal seam is supported and reinforced; when it is necessary to adjust the support position, the control switch of the second electric cylinder 9 is activated, the second electric cylinder 9 drives the auxiliary top plate 10 to move upward, so that the auxiliary top plate 10 contacts the top of the extremely thin coal seam, and then the first electric cylinder 5 is activated. The control switch is used to separate the supporting roof 6 from the top of the extremely thin coal seam, and then the control switch of the servo motor 201 is started. The servo motor 201 drives the threaded rod 202 to rotate, and the threaded rod 202 drives the threaded sleeve 203 to move. The threaded sleeve 203 drives the cross plate 4, the first electric cylinder 5 and the supporting roof 6 to move, and the position of the supporting roof 6 is fine-tuned. The supporting roof 6 is then used for support to move the auxiliary roof 10 downward, and the pull block 13 is pulled. The pull block 13 drives the limit rod 12 to move, so that the limit rod 12 is disengaged from the limit hole 14, and the position of the auxiliary roof 10 is adjusted;

[0042] When the position of the base 1 needs to be adjusted during the supporting process, the auxiliary top plate 10 is made to contact the top of the extremely thin coal seam, the supporting top plate 6 is separated from the top of the extremely thin coal seam, the limiting rod 12 falls off the limiting hole 14, and then the handle is pulled to drive the base 1 to move and adjust through the moving wheel. After the adjustment is completed, the limiting rod 12 is inserted into the limiting hole 14. This method is convenient for adjusting the bracket during the supporting process, and the top of the extremely thin coal seam can be stably supported during the adjustment process, and it is safe to use.

[0043] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-moving ultra-thin coal seam hydraulic support, comprising a base (1), characterized in that: The inner cavity of the base (1) is provided with a moving mechanism (2), the front and rear positions of the top of the moving mechanism (2) are fixedly connected to a push plate (3), the top of the push plate (3) is fixedly connected to a transverse plate (4), the front and rear positions of the top of the transverse plate (4) are fixedly connected to a first electric cylinder (5), the telescopic end of the first electric cylinder (5) is fixedly connected to a supporting top plate (6), both sides of the bottom of the base (1) are fixedly connected to an L-shaped supporting plate (7), the outer surface of the L-shaped supporting plate (7) is slidably connected to a positioning frame (8), the top of the positioning frame (8) is fixedly connected to a second electric cylinder (9), and the telescopic end of the second electric cylinder (9) is fixedly connected to an auxiliary top plate (10); The moving mechanism (2) comprises a servo motor (201), the servo motor (201) being fixedly mounted on the right side of the inner cavity of the base (1), the output end of the servo motor (201) being fixedly connected to a threaded rod (202), both sides of the outer surface of the threaded rod (202) being threadedly connected to threaded sleeves (203), and the top of the threaded sleeve (203) being fixedly connected to the bottom of the push plate (3).

2. The self-propelled ultra-thin coal seam hydraulic support according to claim 1, characterized in that: A through hole (11) is provided on one side of the positioning frame (8), the inner surface of the through hole (11) is movably connected to a limiting rod (12), one side of the limiting rod (12) is fixedly connected to a pull block (13), and limiting holes (14) used to cooperate with the limiting rod (12) are evenly provided on the surface of the L-shaped support plate (7), and the outer surface of the limiting rod (12) is plugged into the inner surface of the limiting hole (14).

3. The self-propelled ultra-thin coal seam hydraulic support according to claim 1 is characterized in that: The bottom of the threaded sleeve (203) is fixedly connected to a slider (15), and the bottom of the inner cavity of the base (1) is provided with a slide groove (16) used in conjunction with the slider (15), and the outer surface of the slider (15) is slidably connected to the inner surface of the slide groove (16).

4. The self-propelled ultra-thin coal seam hydraulic support according to claim 2, characterized in that: The outer surface of the limiting rod (12) is fixedly connected to the limiting ring (17), the inner cavity of the through hole (11) is provided with a ring groove (18) used to cooperate with the limiting ring (17), and the outer surface of the limiting ring (17) is slidably connected to the inner surface of the ring groove (18).

5. The self-propelled ultra-thin coal seam hydraulic support according to claim 4 is characterized in that: The outer surface of the limiting rod (12) is movably connected to a compression spring (19), one end of the compression spring (19) close to the limiting ring (17) is fixedly connected to the connection of the limiting ring (17), and the end of the compression spring (19) away from the limiting ring (17) is fixedly connected to the connection of the inner cavity of the ring groove (18).

6. The self-propelled ultra-thin coal seam hydraulic support according to claim 1, characterized in that: Through slots (20) are provided at the front and rear positions of the top of the base (1), and the outer surface of the push plate (3) is slidably connected to the inner surface of the through slot (20).

7. The self-propelled ultra-thin coal seam hydraulic support according to claim 1, characterized in that: The four corners of the bottom of the base (1) are movably connected to movable wheels, and both sides of the base (1) are fixedly connected to push handles.

8. The self-propelled ultra-thin coal seam hydraulic support according to claim 1, characterized in that: The surface of the supporting top plate (6) is arc-shaped, and the surface of the auxiliary top plate (10) is arc-shaped.

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