Self-adaptive large-supporting-surface mining top plate supporting device

Abstract

The utility model discloses a self-adaptive mining roof supporting device with a large supporting surface, which belongs to the technical field of mining safety facilities and comprises a base and two fixing sleeves fixed on the surface of the base, hydraulic cylinders are mounted on the bottom walls of inner cavities of the fixing sleeves, supporting rods movably connected with the fixing sleeves are fixed at the output ends of the hydraulic cylinders, and the supporting rods are fixed on the base. A supporting seat is fixed to the top of the supporting rod, a plurality of fixing boxes are fixed to the surface of the supporting seat, a plurality of fixing holes are formed in the surfaces of the fixing boxes, supporting head shells are fixed into the fixing holes in the surfaces of the fixing boxes, and piston supporting heads are movably connected into the supporting head shells. And a telescopic spring for supporting the piston head shell is arranged in the supporting head shell. The self-adaptive large-supporting-surface mining top plate supporting device can be suitable for uneven and irregular top plates, manual adjustment is not needed, and the workload of underground personnel is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of mine safety facilities, specifically relating to an adaptive large-support surface mine roof support device. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich areas, generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, underground tunnels are typically dug to extract the coal; this is called an underground coal mine. When the coal seam is very close to the surface, the surface soil is typically stripped away to extract the coal; this is called an open-pit coal mine. In coal mine tunneling projects, support devices are needed to support the roof of the tunnels being excavated.

[0003] Most existing support devices use support plates with a certain curvature to support the top surface of the roadway. However, in actual engineering, the top part of the roadway wall is uneven and irregular. When existing technologies support it, some support points may not be properly supported, which greatly reduces the support performance. Utility Model Content

[0004] The purpose of this utility model is to provide an adaptive large-support surface mine roof support device to solve the problem mentioned in the background art that the top part of the inner wall of the roadway is uneven and irregular, and when the existing technology supports it, some support points may not be properly supported, which greatly reduces the support performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adaptive large-support surface mine roof support device, including a base and two fixed sleeves fixed to the surface of the base, a hydraulic cylinder is installed on the bottom wall of the inner cavity of the fixed sleeve, a support rod is fixedly connected to the fixed sleeve at the output end of the hydraulic cylinder, and a support seat is fixed at the top of the support rod;

[0006] Multiple fixing boxes are fixed to the surface of the support base. Multiple fixing holes are opened on the surface of the fixing boxes. A support head shell is fixed in the fixing holes on the surface of the fixing boxes. A piston support head is movably connected in the support head shell. A telescopic spring for supporting the piston head shell is provided in the support head shell.

[0007] In a further embodiment, a guide pipe is provided on one side of the fixed box, and multiple oil delivery holes are opened on the surface of the support base, and an oil delivery pipe connected to the guide pipe is installed in the oil delivery holes on the surface of the support base.

[0008] In a further embodiment, through holes are provided at corresponding positions of the guide tube and the piston support head, and a diversion tube is fixed between the guide tube and the through hole of the piston support head.

[0009] In a further embodiment, an electrode plate one is installed on the bottom wall of the inner cavity of the support head housing, an electrode plate two matching the electrode plate one is installed on the bottom of the piston support head, and an alarm is installed on one side of the outer wall of the fixing box.

[0010] In a further embodiment, a rotating groove is provided on the top of the piston support head, and a ball bearing is rotatably connected in the rotating groove on the top of the piston support head.

[0011] In a further embodiment, a hydraulic cylinder and an oil replenishment pipe are respectively installed on one side of the outer wall of the support base, and an oil collection chamber is opened inside the support base.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] This adaptive large-face mine roof support device, through the setting of multiple fixed boxes, can support the roof of the roadway being excavated in coal mines in different areas. Under the action of the telescopic spring, when multiple piston support heads come into contact with the roof of the coal mine, the piston support heads squeeze the telescopic springs and change the position of the piston support heads. When the roof of the coal mine is uneven, multiple piston support heads can be simultaneously attached to the top of the coal mine, thereby achieving a better support effect.

[0014] By cooperating with each other, the guide pipe, oil supply pipe and the branch pipe can deliver oil to multiple support head housings, drive the piston support head to move, and adjust the height of the piston support head, so that the device can have a larger support range, be more flexible and versatile, and meet the support needs under different conditions.

[0015] When the local pressure is too high, it will push the piston support head downward, causing electrode plate one and electrode plate two to come into contact, thereby energizing the alarm and sounding an alarm to remind the workers, increasing the safety of the operation. This adaptive large support surface mine roof support device can be used for uneven and irregular roofs, without the need for manual adjustment, reducing the workload of underground personnel. Attached Figure Description

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2This is a structural schematic diagram of the fixed sleeve of this utility model in a cut-out state;

[0019] Figure 3 This is a schematic diagram of the structure of the fixing box of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the guide tube and the outer shell of the support head of this utility model;

[0021] Figure 5 This is a structural schematic diagram of the support head shell of this utility model in a cut-out state.

[0022] In the diagram: 1. Base; 2. Fixing sleeve; 3. Hydraulic cylinder; 4. Support rod; 5. Support base; 6. Fixing box; 7. Guide pipe; 8. Oil supply pipe; 9. Diverter pipe; 10. Support head shell; 11. Piston support head; 12. Telescopic spring; 13. Electrode plate one; 14. Electrode plate two; 15. Ball bearing; 16. Hydraulic cylinder; 17. Oil replenishment pipe; 18. Alarm. Detailed Implementation

[0023] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0024] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0025] Please see Figure 1-5 This utility model provides an adaptive large-support surface mine roof support device, including a base 1 and two fixed sleeves 2 fixed to the surface of the base 1. The fixed sleeves 2 are welded to the base 1. A hydraulic cylinder 3 is installed on the bottom wall of the inner cavity of the fixed sleeve 2 by bolts. The output end of the hydraulic cylinder 3 is fixed to a support rod 4 that is movably connected to the fixed sleeve 2 by bolts. A limit sleeve is welded to the lower half of the outer wall of the support rod 4. The limit sleeve can limit the movement distance of the support rod 4 and prevent the support rod 4 from sliding out of the fixed sleeve 2. A support seat 5 is welded to the top of the support rod 4. The height of the support seat 5 can be adjusted according to the actual support requirements through the operation of the hydraulic cylinder 3.

[0026] Multiple fixing boxes 6 are welded to the surface of the support base 5, and an oil collection chamber is opened inside the support base 5. Multiple fixing holes are opened on the surface of the fixing boxes 6, and a support head shell 10 is welded into the fixing holes on the surface of the fixing boxes 6. A guide pipe 7 is provided on one side of the fixing box 6. Multiple oil delivery holes are opened on the surface of the support base 5, and an oil delivery pipe 8 connected to the guide pipe 7 is installed in the oil delivery holes on the surface of the support base 5. A control valve is installed on the oil delivery pipe 8. Through holes are opened at the corresponding positions of the guide pipe 7 and the piston support head 11, and a diversion pipe 9 is welded between the guide pipe 7 and the through holes of the piston support head 11.

[0027] A piston support head 11 is movably connected inside the support head housing 10, and a telescopic spring 12 for supporting the piston head housing is provided inside the support head housing 10. A rotating groove is opened on the top of the piston support head 11, and a ball bearing 15 is rotatably connected in the rotating groove on the top of the piston support head 11. The ball bearing 15 enables the piston support head 11 to move more smoothly in the roadway. By setting multiple fixed boxes 6, the top surface of the roadway being excavated in the coal mine can be supported in different areas. Under the action of the telescopic spring 12, when multiple piston support heads 11 come into contact with the top surface of the coal mine, the position of the piston support head 11 is changed by the piston support head 11 squeezing the telescopic spring 12. When the top surface of the coal mine is uneven, multiple piston support heads 11 can simultaneously fit against the top of the coal mine, thereby achieving a better support effect.

[0028] Electrode plate 13 is bolted to the bottom wall of the inner cavity of the support head housing 10. Electrode plate 14, matching electrode plate 13, is mounted on the bottom of the piston support head 11. An alarm 18 is bolted to one side of the outer wall of the fixing box 6. The alarm 18 and electrode plate 13 are electrically connected. A hydraulic cylinder 16 and a replenishing oil pipe 17 are mounted on one side of the outer wall of the support base 5. A control pipe is also mounted on the replenishing oil pipe 17. The replenishing oil pipe 17 can replenish the oil in the support base 5 when it is low on oil. Through the cooperation of the guide pipe 7, the oil supply pipe 8, and the diverting pipe 9, it can... Oil is delivered to multiple support head housings 10, pushing the piston support head 11 to move. The height of the piston support head 11 is adjusted to give the device a larger support range, making it more flexible and adaptable to meet support needs in different situations. When the local pressure is too high, the piston support head 11 will be pushed downward, causing electrode plate one 13 and electrode plate two 14 to come into contact. Electrode plate one 13, electrode plate two 14 are electrically connected to the alarm 18, so that when electrode plate one 13 and electrode plate two 14 come into contact, the alarm 18 will be activated to alert the staff.

[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Working principle:

[0032] When in use, this adaptive large-face mine roof support device is moved to a suitable position, and the hydraulic cylinder 3 drives the support rod 4 to rise, thereby pushing the support seat 5 to rise. Multiple fixed boxes 6 support the roof of the roadway being excavated in the coal mine in different areas. The workers can start the hydraulic cylinder 16 to supply oil to the oil collection chamber inside the support seat 5. When the oil collection chamber is full, the oil will enter the guide pipe 7 through the oil supply pipe 8, and then be transported to the support head shell 10 through the diversion pipe 9, pushing the piston support head 11 to move and fit with the surface to be supported.

[0033] Under the action of the telescopic spring 12, when multiple piston support heads 11 are in contact with the top surface of the coal mine, the position of the piston support heads 11 is changed by squeezing the telescopic spring 12 through the piston support heads 11. When the top surface of the coal mine is uneven, multiple piston support heads 11 are simultaneously attached to the top of the coal mine, thereby achieving a better support effect. When the local pressure is too large, it will push the piston support heads 11 to move downward, so that electrode plate one 13 and electrode plate two 14 are attached together, thereby energizing the alarm 18 and sounding an alarm to remind the staff.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adaptive large-support surface mine roof support device, comprising a base (1) and two fixing sleeves (2) fixed to the surface of the base (1), characterized in that: A hydraulic cylinder (3) is installed on the bottom wall of the inner cavity of the fixed sleeve (2). A support rod (4) that is movably connected to the fixed sleeve (2) is fixed at the output end of the hydraulic cylinder (3). A support seat (5) is fixed at the top of the support rod (4). The surface of the support base (5) is fixed with a plurality of fixing boxes (6), the surface of the fixing boxes (6) is provided with a plurality of fixing holes, and a support head shell (10) is fixed in the fixing holes on the surface of the fixing boxes (6). A piston support head (11) is movably connected inside the support head shell (10), and a telescopic spring (12) for supporting the piston head shell is provided inside the support head shell (10).

2. The adaptive large-support-face mine roof support device according to claim 1, characterized in that: A guide pipe (7) is provided on one side of the fixed box (6), and multiple oil delivery holes are opened on the surface of the support base (5), and an oil delivery pipe (8) connected to the guide pipe (7) is installed in the oil delivery holes on the surface of the support base (5).

3. The adaptive large-support-face mine roof support device according to claim 2, characterized in that: The guide pipe (7) and the piston support head (11) are provided with through holes at corresponding positions, and a diversion pipe (9) is fixed between the guide pipe (7) and the through hole of the piston support head (11).

4. The adaptive large-face mine roof support device according to claim 1, characterized in that: Electrode plate one (13) is installed on the bottom wall of the inner cavity of the support head shell (10), and electrode plate two (14) matching electrode plate one (13) is installed on the bottom of the piston support head (11). An alarm (18) is installed on one side of the outer wall of the fixed box (6).

5. The adaptive large-face mine roof support device according to claim 4, characterized in that: The piston support head (11) has a rotating groove at its top, and a ball bearing (15) is rotatably connected in the rotating groove at the top of the piston support head (11).

6. The adaptive large-face mine roof support device according to claim 1, characterized in that: A hydraulic cylinder (16) and an oil supply pipe (17) are respectively installed on one side of the outer wall of the support base (5), and an oil collection chamber is provided inside the support base (5).

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