A mining support structure and support method for coal mining

Abstract

This invention relates to the field of coal mining technology, specifically to a mining support structure for coal mining. It includes a support body and a sidewall plate disposed on one side of the support body. Two symmetrically arranged tilting cylinders are rotatably mounted on the end of the support body near the sidewall plate. Each tilting cylinder has a mounting block fixedly mounted on its telescopic shaft end, and each mounting block has a mounting hole inside. Mounting plates are fixedly mounted on both sides of the sidewall plate. Each of the two mounting bases has a connecting mechanism inside. A support mechanism is provided at the end of each tilting cylinder away from the sidewall plate. The beneficial effect of this invention is that it isolates the sidewall plate from a damaged tilting cylinder, allowing the sidewall plate to be temporarily controlled by one tilting cylinder to fit against the coal mine roadway sidewall, thus buying time for subsequent replacement of the damaged tilting cylinder and avoiding tunneling interruptions or safety risks caused by sudden shutdowns.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mining, in particular to a mining support structure and a support method for coal mining. BACKGROUND

[0002] The step-by-step self-moving tunneling temporary support belongs to the temporary support device in the coal mine tunneling. It adopts an overall frame structure, is composed of a cross beam, a longitudinal beam, a stand column, a pushing jack and the like, has strong roof adaptability, a large support area, and can effectively prevent roof falling and rib spalling accidents. The core feature is the self-moving walking function, which discards the high-risk mode of traditional temporary support manual climbing operation, can significantly shorten the temporary support operation time, and improves the tunneling efficiency.

[0003] One end of the temporary support is usually provided with a rib support plate. The front probe beam insertion plate space reserved by the rib support plate provides a protection basis for preventing roof falling and rib spalling accidents. Usually, the turning angle of the rib support plate is controlled by two air cylinders at the same time. When one of the air cylinders is damaged due to external impact, internal failure or environmental influence and the like, the normal air cylinder pushes one end of the rib support plate to move, and the damaged air cylinder cannot drive one end of the rib support plate to move, which will cause the force imbalance of the rib support plate, the rib support plate can only be stressed on one side, and the one-sided tilting occurs, so that the rib support plate cannot be attached to the coal mine tunnel rib, a support blind area appears, and the problems of support stability decline and safety risk are caused. SUMMARY

[0004] The present application aims to provide a mining support structure and a support method for coal mining to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a mining support structure for coal mining, comprising a support body and a rib support plate arranged on one side of the support body, two symmetrical turning air cylinders are rotatably installed at one end of the support body close to the rib support plate, mounting blocks are fixedly installed at the extension shaft ends of the two turning air cylinders, mounting holes are formed in the interiors of the two mounting blocks, two symmetrical mounting seats are fixedly installed at the bottom of the one end of the support body close to the rib support plate, two symmetrical sleeves I are fixedly installed at the bottom of the one end of the rib support plate close to the support body, one ends of the two sleeves I away from the rib support plate are rotatably connected with the two mounting seats respectively, mounting plates are fixedly installed on the two sides of the rib support plate, connection mechanisms are arranged in the interiors of the two mounting seats, and support mechanisms are arranged at the one ends of the two turning air cylinders away from the rib support plate.

[0006] Preferably, the connecting mechanism includes a connecting rod and an operating component. The connecting rod passes through the corresponding mounting base and the inside of the sleeve. A connecting arm is fixedly installed on the side of the connecting rod away from the corresponding tilting cylinder. A plug rod is fixedly installed on the side of the connecting arm away from the connecting rod. The plug rod passes through the inside of the corresponding mounting plate and cooperates with the corresponding mounting hole.

[0007] Preferably, the operating component includes a second sleeve, which is rotatably connected to a corresponding mounting base. A worm gear is fixedly sleeved on the outside of the second sleeve, and a threaded rod is threadedly connected to the inside of the second sleeve. A push rod is rotatably sleeved on the outside of the threaded rod. The end of the push rod away from the threaded rod is fixedly sleeved on the outside of a corresponding connecting rod. A worm wheel meshes with the side of the worm gear away from the push rod. An operating rod is fixedly sleeved inside the worm wheel, and the top end of the operating rod is rotatably mounted inside the corresponding mounting base.

[0008] Preferably, the operating lever includes a lever body one and a lever body two. The top end of the lever body one is rotatably connected to a corresponding mounting base. The lever body two is slidably installed inside the lever body one. One end of the lever body one has a plurality of evenly distributed slots. A limit strip is fixedly installed on the side of the lever body two away from the plurality of slots. A limit groove is opened at the bottom of the lever body one near the limit strip. The limit groove and the limit strip cooperate with each other. An adjustment mechanism is provided inside the lever body two.

[0009] Preferably, the adjusting mechanism includes a threaded rod II, which is threadedly connected to the interior of a rod body II. A rotating seat is rotatably mounted on the top of the rod body II, and an adjusting rod is rotatably mounted on the top of the rotating seat. A locking block is rotatably mounted on the top of the adjusting rod, and the locking block cooperates with multiple locking slots.

[0010] Preferably, the support mechanism includes a fixed base and a transmission assembly. The fixed base is fixedly installed at the end of the support body. A rotating shaft is rotatably installed inside the fixed base. The rotating shaft is fixedly connected to a corresponding tilting cylinder. A locking disc is fixedly sleeved on the outside of the rotating shaft.

[0011] Preferably, the transmission assembly includes a transmission bracket, which is slidably installed inside the support body. One end of the transmission bracket near the rotating shaft passes through the fixed seat and extends into the interior of the fixed seat. Multiple evenly distributed locking blocks are fixedly installed at the end of the transmission bracket near the locking disc, and the multiple locking blocks cooperate with the locking disc. A base plate is fixedly installed at the bottom of the transmission bracket at the end away from the multiple locking blocks. A transmission groove is opened inside the base plate, and a transmission rod is slidably installed inside the transmission groove. A push rod two is fixedly installed at the top of the transmission rod, and the end of the push rod two away from the transmission rod is rotatably sleeved on the outside of the corresponding threaded rod one.

[0012] Preferably, the transmission groove is composed of a horizontal groove and an inclined groove, the horizontal groove and the inclined groove are interconnected, and the transmission rod cooperates with both the horizontal groove and the inclined groove.

[0013] This invention also discloses a support method for a mining support structure used in coal mining, the method comprising the following steps:

[0014] S1: Moves in conjunction with components such as crossbeams, longitudinal beams, columns, and jacks in the support body, and flips the side protection plate through two tilting cylinders;

[0015] S2: When one of the tilting cylinders is damaged, the side guard plate is isolated from the damaged tilting cylinder through the corresponding connecting mechanism;

[0016] S3: While the corresponding connecting mechanism is in motion, the damaged tilting cylinder is fixed by the support mechanism to prevent the tilting cylinder from automatically swinging and colliding with other structures in the support body, causing damage.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. Under the action of the connecting mechanism, the side guard plate can be isolated from the damaged tilting cylinder. The normal tilting cylinder can temporarily control the tilting of the side guard plate, avoiding the situation where the side guard plate can only be stressed on one side and tilted on one side because the damaged tilting cylinder cannot drive one end of the side guard plate to move. This allows the side guard plate to be controlled by one tilting cylinder to fit against the side of the coal mine roadway in a short period of time, buying time for the subsequent replacement of the damaged tilting cylinder, and avoiding tunneling interruption or safety risks caused by sudden shutdown.

[0019] 2. The support mechanism can fix the rotating shaft when the side plate is separated from the damaged tilting cylinder, thereby preventing the tilting cylinder from swinging freely along the rotating shaft and colliding with other structures in the support body and causing damage when the damaged tilting cylinder is disassembled. The adjustment mechanism can adjust the overall length of the two operating rods according to the height of the staff or the working environment to meet the different needs of the users. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the image;

[0022] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0023] Figure 4This is a schematic diagram of the internal structure of the mounting base of the present invention;

[0024] Figure 5 This is a schematic diagram of one side of the connecting mechanism of the present invention;

[0025] Figure 6 This is a schematic diagram of the transmission support structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the other side of the connecting mechanism of the present invention;

[0027] Figure 8 This is a schematic diagram of the internal structure of rod one and rod two of the present invention;

[0028] Figure 9 This is a schematic diagram of the internal structure of the fixing base of the present invention.

[0029] The components represented by each number in the attached diagram are listed below: 1. Support body; 2. Side guard plate; 3. Tilting cylinder; 4. Mounting block; 5. Mounting hole; 6. Mounting seat; 7. Sleeve one; 8. Mounting plate; 9. Connecting rod; 10. Connecting arm; 11. Insert rod; 12. Sleeve two; 13. Worm gear; 14. Threaded rod one; 15. Push rod one; 16. Worm wheel; 17. Rod body one; 18. Rod body two; 19. Slot; 20. Limiting strip; 21. Limiting groove; 22. Threaded rod two; 23. Rotating seat; 24. Adjusting rod; 25. Locking block; 26. Fixed seat; 27. Rotating shaft; 28. Locking disc; 29. ​​Transmission bracket; 30. Locking block; 31. Base plate; 32. Transmission rod; 33. Push rod two; 34. Horizontal groove; 35. Inclined groove. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] This invention provides a technical solution: such as Figure 1 - Figure 9The diagram shows a mining support structure for coal mining, comprising a support body 1 and a side plate 2 disposed on one side of the support body 1. Two symmetrically arranged tilting cylinders 3 are rotatably mounted on the end of the support body 1 near the side plate 2. Mounting blocks 4 are fixedly mounted on the telescopic shaft ends of the two tilting cylinders 3. Mounting holes 5 are opened inside the two mounting blocks 4. Two symmetrically arranged mounting seats 6 are fixedly mounted on the bottom of the end of the support body 1 near the side plate 2. Two symmetrically arranged sleeves 7 are fixedly mounted on the bottom of the side plate 2 near the end of the support body 1. The ends of the two sleeves 7 away from the side plate 2 are rotatably connected to the two mounting seats 6 respectively. Mounting plates 8 are fixedly mounted on both sides of the side plate 2. Connecting mechanisms are provided inside the two mounting seats 6. Support mechanisms are provided at the ends of the two tilting cylinders 3 away from the side plate 2.

[0032] The connecting mechanism includes a connecting rod 9 and an operating component. The connecting rod 9 passes through the corresponding mounting base 6 and the sleeve 7. A connecting arm 10 is fixedly installed on the side of the connecting rod 9 away from the corresponding tilting cylinder 3. A plug rod 11 is fixedly installed on the side of the connecting arm 10 away from the connecting rod 9. The plug rod 11 passes through the corresponding mounting plate 8 and cooperates with the corresponding mounting hole 5.

[0033] The operating assembly includes a second sleeve 12, which is rotatably connected to a corresponding mounting base 6. A worm gear 13 is fixedly sleeved on the outside of the second sleeve 12. A threaded rod 14 is threadedly connected to the inside of the second sleeve 12. A push rod 15 is rotatably sleeved on the outside of the threaded rod 14. The end of the push rod 15 away from the threaded rod 14 is fixedly sleeved on the outside of a corresponding connecting rod 9. A worm wheel 16 meshes with the side of the worm gear 13 away from the push rod 15. An operating rod is fixedly sleeved inside the worm wheel 16. The top end of the operating rod is rotatably installed inside the corresponding mounting base 6.

[0034] The operating lever includes a first lever body 17 and a second lever body 18. The top of the first lever body 17 is rotatably connected to the corresponding mounting base 6. The second lever body 18 is slidably installed inside the first lever body 17. One end of the first lever body 17 has multiple evenly distributed slots 19. A limit strip 20 is fixedly installed on the side of the second lever body 18 away from the multiple slots 19. A limit groove 21 is opened at the bottom of the first lever body 17 near the limit strip 20. The limit groove 21 and the limit strip 20 cooperate with each other. An adjustment mechanism is provided inside the second lever body 18.

[0035] The adjustment mechanism includes a threaded rod 22, which is threadedly connected to the inside of a rod body 18. A rotating seat 23 is rotatably mounted on the top of the rod body 18. An adjustment rod 24 is rotatably mounted on the top of the rotating seat 23. A locking block 25 is rotatably mounted on the top of the adjustment rod 24. The locking block 25 cooperates with multiple locking slots 19.

[0036] The support mechanism includes a fixed base 26 and a transmission assembly. The fixed base 26 is fixedly installed at the end of the support body 1. A rotating shaft 27 is rotatably installed inside the fixed base 26. The rotating shaft 27 is fixedly connected to the corresponding tilting cylinder 3. A locking disc 28 is fixedly sleeved on the outside of the rotating shaft 27.

[0037] The transmission assembly includes a transmission bracket 29, which is slidably installed inside the support body 1. One end of the transmission bracket 29 near the rotating shaft 27 passes through the fixed seat 26 and extends into the interior of the fixed seat 26. Multiple evenly distributed locking blocks 30 are fixedly installed on the end of the transmission bracket 29 near the locking disc 28. All locking blocks 30 cooperate with the locking disc 28. A base plate 31 is fixedly installed on the bottom of the transmission bracket 29 away from the multiple locking blocks 30. A transmission groove is opened inside the base plate 31. A transmission rod 32 is slidably installed inside the transmission groove. A push rod 33 is fixedly installed on the top of the transmission rod 32. The end of the push rod 33 away from the transmission rod 32 is rotatably sleeved on the outside of the corresponding threaded rod 14.

[0038] The transmission groove is composed of a horizontal groove 34 and an inclined groove 35. The horizontal groove 34 and the inclined groove 35 are interconnected, and the transmission rod 32 cooperates with both the horizontal groove 34 and the inclined groove 35.

[0039] Working principle: During use, it moves in conjunction with the crossbeams, longitudinal beams, columns, and jacks in the support body 1. Two tilting cylinders 3 tilt the sidewall plate 2 to fit the top of the coal mine roadway. When one of the tilting cylinders 3 is damaged, the corresponding connecting mechanism is operated, and the corresponding support mechanism operates synchronously. The specific process is as follows: Rotating rod 18, with the cooperation of the limiting strip 20 and the limiting groove 21, rod 17 rotates, thereby driving the worm gear 16 at the top to rotate. Under the meshing action of the worm gear 16 and the worm 13, sleeve 12 rotates, thereby driving the threaded rod 14 inside to rotate. Simultaneously, the threaded rod 14 drives the push rods 15 and 23 at both ends to move synchronously, pushing... Both rod 15 and push rod 23 move toward one side of the side plate 2. Push rod 15 drives connecting rod 9, connecting arm 10 and insert rod 11 to move synchronously. While pushing rod 23 moves, it drives the transmission rod 32 at one end to rotate synchronously. The transmission rod 32 first moves along the inclined groove 35. At this time, the bottom plate 31 is forced to move the transmission bracket 29. The transmission bracket 29 drives multiple locking blocks 30 to move toward the corresponding locking disc 28. The multiple locking blocks 30 are inserted into the locking disc 28, and the locking disc 28 is fixed, thereby fixing the rotating shaft 27. After the insert rod 11 is separated from the mounting block 4, it prevents the tilting cylinder 3 from swinging freely along the rotating shaft 27 and colliding with other structures in the support body 1, causing damage. At this time, the insert rod 11 has not been separated from the mounting hole 5 inside the mounting block 4.

[0040] When the threaded rod 14 continues to rotate, the transmission rod 32 moves from the inclined groove 35 to the horizontal groove 34. At this time, the insertion rod 11 begins to disengage from the mounting hole 5, thereby isolating the side guard plate 2 from the damaged tilting cylinder 3. The normal tilting cylinder 3 temporarily controls the tilting of the side guard plate 2, avoiding the situation where the side guard plate 2 can only be subjected to force on one side and tilt on one side because the damaged tilting cylinder 3 cannot drive one end of the side guard plate 2 to move. This allows the side guard plate 2 to be controlled by one tilting cylinder 3 to fit against the side of the coal mine roadway in a short period of time, buying time for the subsequent replacement of the damaged tilting cylinder 3, and avoiding the interruption of tunneling or safety risks caused by sudden shutdown.

[0041] The adjustment mechanism allows for adjustment of the overall length of the two operating levers based on the height of the operator or the working environment. To adjust the length of one of the operating levers, first, grip lever 18 with one hand and rotate it. Then, rotate threaded rod 22 to move rotating seat 23 downwards. Adjusting rod 24 then pulls locking block 25 into the interior of lever 18. At this point, lever 18 can be moved up and down to adjust the overall length of the operating lever. Once the desired length is achieved, rotate threaded rod 22 in the opposite direction to position locking block 25 in the corresponding slot 19.

[0042] This invention also discloses a support method for a mining support structure used in coal mining, the method comprising the following steps:

[0043] S1: Moves in conjunction with components such as crossbeams, longitudinal beams, columns, and jacks in the support body 1, and flips the side plate 2 through two tilting cylinders 3;

[0044] S2: When one of the tilting cylinders 3 is damaged, the guard plate 2 is isolated from the damaged tilting cylinder 3 through the corresponding connecting mechanism;

[0045] S3: While the corresponding connecting mechanism is in motion, the damaged tilting cylinder 3 is fixed by the support mechanism to prevent the tilting cylinder 3 from automatically swinging and colliding with other structures in the support body 1, causing damage.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mining support structure for coal mining, comprising a support body (1) and a shield plate (2) arranged on one side of the support body (1), characterized in that: The supporting body (1) is rotatably installed with two symmetrical turnover cylinders (3) near one end of the support plate (2), the telescopic shaft ends of the two turnover cylinders (3) are fixedly installed with mounting blocks (4), mounting holes (5) are formed in the two mounting blocks (4), the bottom of the supporting body (1) near one end of the support plate (2) is fixedly installed with two symmetrically arranged mounting seats (6), the two sides of the support plate (2) are fixedly installed with mounting plates (8), the bottom of the support plate (2) near one end of the supporting body (1) is fixedly installed with two symmetrically arranged sleeve I (7), the ends of the two sleeve I (7) away from the support plate (2) are rotatably connected with the two mounting seats (6), the interiors of the two mounting seats (6) are provided with connecting mechanisms, and the ends of the two turnover cylinders (3) away from the support plate (2) are provided with supporting mechanisms. The connecting mechanism comprises a connecting rod (9) and an operating assembly, the connecting rod (9) penetrates the interiors of the corresponding mounting seat (6) and sleeve I (7), the side of the connecting rod (9) away from the corresponding turnover cylinder (3) is fixedly installed with a connecting arm (10), the side of the connecting arm (10) away from the connecting rod (9) is fixedly installed with a plug rod (11), the plug rod (11) penetrates the interior of the corresponding mounting plate (8), and the plug rod (11) and the corresponding mounting hole (5) are matched with each other. The operating assembly comprises a sleeve II (12), the sleeve II (12) is rotatably connected with the corresponding mounting seat (6), the exterior of the sleeve II (12) is fixedly sleeved with a worm (13), the interior of the sleeve II (12) is threadedly connected with a threaded rod I (14), the exterior of the threaded rod I (14) is rotatably sleeved with a push rod I (15), the end of the push rod I (15) away from the threaded rod I (14) is fixedly sleeved to the exterior of the corresponding connecting rod (9), the side of the worm (13) away from the push rod I (15) is engaged with a worm wheel (16), the interior of the worm wheel (16) is fixedly sleeved with an operating rod, and the top end of the operating rod is rotatably installed in the interior of the corresponding mounting seat (6).

2. A mining support structure for coal mining according to claim 1, characterised in that: The operating rod comprises a rod body I (17) and a rod body II (18), the top end of the rod body I (17) is rotatably connected with the corresponding mounting seat (6), the rod body II (18) is slidably installed in the interior of the rod body I (17), a plurality of uniformly distributed clamping grooves (19) are formed in one end of the interior of the rod body I (17), the side of the rod body II (18) away from the plurality of clamping grooves (19) is fixedly installed with a limiting strip (20), a limiting groove (21) is formed in the bottom of the end of the rod body I (17) near the limiting strip (20), the limiting groove (21) and the limiting strip (20) are matched with each other, and the interior of the rod body II (18) is provided with an adjusting mechanism.

3. A mining support structure for coal mining according to claim 2, characterised in that: The adjusting mechanism comprises a second threaded rod (22) which is threadedly connected to the inside of the second rod body (18), the top of the second rod body (18) is rotatably provided with a rotating seat (23), the top of the rotating seat (23) is rotatably provided with an adjusting rod (24), the top end of the adjusting rod (24) is rotatably provided with a clamping block (25), and the clamping block (25) is matched with the clamping grooves (19).

4. A mining support structure for coal mining according to claim 1 characterised in that: The supporting mechanism comprises a fixed seat (26) and a transmission assembly, the fixed seat (26) is fixedly installed at the end of the support body (1), the inside of the fixed seat (26) is rotatably provided with a rotating shaft (27), the rotating shaft (27) is fixedly connected with the corresponding turnover air cylinder (3), and the outside of the rotating shaft (27) is fixedly provided with a locking disc (28).

5. A mining support structure for coal mining according to claim 4 wherein: The transmission assembly comprises a transmission bracket (29), the transmission bracket (29) is slidably installed in the inside of the support body (1), one end of the transmission bracket (29) close to the rotating shaft (27) penetrates through the fixed seat (26) and extends into the inside of the fixed seat (26), a plurality of uniformly distributed locking blocks (30) are fixedly installed at the end of the transmission bracket (29) close to the locking disc (28), the plurality of locking blocks (30) are matched with the locking disc (28), a bottom plate (31) is fixedly installed at the bottom of the end of the transmission bracket (29) away from the plurality of locking blocks (30), a transmission groove is formed in the inside of the bottom plate (31), a transmission rod (32) is slidably installed in the inside of the transmission groove, a second pushing rod (33) is fixedly installed at the top of the transmission rod (32), and one end of the second pushing rod (33) away from the transmission rod (32) is rotatably sleeved on the outside of the corresponding first threaded rod (14).

6. A mining support structure for coal mining according to claim 5 wherein: The transmission groove is composed of a horizontal groove (34) and an inclined groove (35), the horizontal groove (34) and the inclined groove (35) are in communication, and the transmission rod (32), the horizontal groove (34) and the inclined groove (35) are matched with each other.

7. A supporting method for a mining support structure for coal mining, using the mining support structure for coal mining according to any one of claims 1 to 6, characterized in that, The method comprises the following steps: S1: the support body (1) is made to walk, and the guard plate (2) is turned over through the two turnover air cylinders (3); S2: when one of the turnover air cylinders (3) is damaged, the corresponding connecting mechanism is used to isolate the fault between the guard plate (2) and the damaged turnover air cylinder (3); S3: while the corresponding connecting mechanism is actuated, the damaged turnover air cylinder (3) is fixed by the supporting mechanism, so that the turnover air cylinder (3) is prevented from automatically swinging and colliding with other structures in the support body (1) to cause damage.

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