A hydraulic support adjustment device for coal mines

Abstract

This invention relates to the field of hydraulic support installation technology in fully mechanized coal mining faces, specifically to a hydraulic support adjustment device for coal mines. The device includes a left upper sliding plate, a middle upper plate movably connected to one side wall of the left upper sliding plate, a right upper sliding plate movably connected to one side wall of the middle upper plate, and push-moving jacks installed on one side walls of the left and right upper sliding plates. A left lower base plate is installed on the lower surface of the left upper sliding plate, a middle lower base plate movably connected to one side wall of the left lower base plate, and a crossbeam movably connected to the upper surface of the middle upper plate. This invention uses the middle lower base plate, left lower base plate, and right lower base plate to form a lower base plate, and the middle upper plate, left upper sliding plate, and right upper sliding plate to form an upper sliding plate, creating a two-layer structure. To facilitate the transportation of non-removable parts, a U-shaped groove guide and guide slider are used to guide the middle upper plate during use, reducing the risk of displacement of the middle upper plate due to the extension and retraction of the push-moving jacks.

Description

Technical Field

[0001] This invention relates to the field of hydraulic support installation technology in coal mine fully mechanized mining faces, specifically to a hydraulic support adjustment device for coal mines. Background Technology

[0002] In the fully mechanized mining face of an underground coal mine, there is an important process called "installation and positioning of hydraulic supports in the cut". The hydraulic supports need to be moved from the center line of the monorail crane to the center line of the hydraulic supports in place. However, there is a gap between the theoretical and actual dimensions of the coal mine cut. The width of the cut will exceed a certain limit in some stages.

[0003] Current hydraulic support relocation equipment cannot automate the installation and positioning of hydraulic supports within the cut. Furthermore, while the equipment can be adjusted according to the width of the cut to complete the support positioning, it is also inconvenient to disassemble and carry. As a result, the hydraulic support relocation equipment is often too large and occupies a large area during installation. Moreover, it is inconvenient for workers to carry, requiring the entire hydraulic support relocation equipment to be moved, which is very troublesome and increases the labor intensity of the workers. Summary of the Invention

[0004] The purpose of this invention is to provide a hydraulic support adjustment device for coal mines. The hydraulic support adjustment device includes an upper plate, an upper left sliding plate, an upper right sliding plate, a lower middle bottom plate, a lower left bottom plate, a lower right bottom plate, a crossbeam, a pushing jack, and the lower middle bottom plate, the lower left bottom plate, and the lower right bottom plate together form a lower bottom plate, which provides support and serves as a track for the device. The upper middle plate, the upper left sliding plate, and the upper right sliding plate together form an upper sliding plate. The pushing jack extends and retracts to drive the relative movement of the upper and lower plate components.

[0005] To achieve the above effects, the technical solution adopted by the present invention is as follows: a hydraulic support adjustment device for coal mines, including an upper left sliding plate, a middle upper plate movably connected to one side wall of the upper left sliding plate, an upper right sliding plate movably connected to one side wall of the middle upper plate, a pushing jack provided on one side wall of the upper left and upper right sliding plates, a lower left bottom plate provided on the lower surface of the upper left sliding plate, a middle lower bottom plate movably connected to one side wall of the lower left bottom plate, a crossbeam movably connected to the upper surface of the middle upper plate, and a lower right bottom plate movably connected to one side wall of the middle lower bottom plate.

[0006] Preferably, a limiting plate is fixedly connected to the upper surface of one side wall of the lower left base plate and the lower right base plate, a locking block is movably connected to one side wall of the upper middle plate, and U-shaped grooves are provided inside the lower left base plate and the lower right base plate.

[0007] Preferably, the U-shaped groove guide has a guide slider internally slidably connected, and the guide slider is connected to the upper middle plate. The upper left slide plate and the upper right slide plate are fixedly connected to one side wall of the first connecting ring.

[0008] Preferably, each of the first connecting rings has a first through hole inside, and each of the lower left and lower right bottom plates has a mounting plate fixedly connected to one side wall. Each of the mounting plates has a second connecting ring fixedly connected to one side wall. Each of the second connecting rings has a second through hole inside.

[0009] Preferably, the upper left and upper right sliding plates have a first threaded hole on their front sides, the upper surface of the crossbeam has a second threaded hole in the middle, and the upper middle plate has a third threaded hole inside.

[0010] Preferably, a first heat dissipation plate is fixedly connected to the movable connection of the lower left base plate, the lower middle base plate, and the lower right base plate. A second heat dissipation plate is provided on the left and right sides inside the upper middle plate. A groove is provided inside one side wall of the upper middle plate, and the groove is movably connected to the locking block.

[0011] Preferably, the first connecting ring has a fixed bolt connected to its internal thread, and the number of fixed bolts is set to several. The fixed bolts are respectively located inside the first connecting ring, the second connecting ring, the first threaded hole, the second threaded hole, and the third threaded hole. The outer wall of the fixed bolt is rotatably connected to a connecting block, and the connecting block is connected to the push jack. The outer wall of the fixed bolt is threadedly connected to a nut.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The hydraulic support system consists of an upper middle plate, an upper left sliding plate, an upper right sliding plate, a lower middle bottom plate, an lower left bottom plate, a lower right bottom plate, a crossbeam, and a moving jack. The lower middle bottom plate, the lower left bottom plate, and the lower right bottom plate together form the lower bottom plate, which provides support and serves as a track for the equipment. The upper middle plate, the upper left sliding plate, and the upper right sliding plate together form the upper sliding plate. The installation process of the hydraulic support system, which consists of these parts, does not require specialized equipment. It requires the use of a single support column for long-distance operation of the lateral support frame, which is labor-intensive and carries the risk of the support frame tipping over. Using this set of equipment, the installation process is automated. This equipment has a large adjustment distance, a stable structure, and can move hydraulic supports weighing up to 40 tons.

[0014] 2. The equipment is divided into two layers: a lower base plate (comprising the lower middle, lower left, and lower right base plates) and an upper plate (comprising the upper middle, upper left, and upper right sliding plates). To facilitate the transport of non-removable parts, U-shaped grooves and guide sliders are used to guide the upper middle plate during use, reducing the risk of misalignment due to the extension and retraction of the jacks. The locking blocks and grooves limit the movement of the crossbeam when not in use, preventing loosening and protecting it from damage caused by prolonged use where the hydraulic supports come into contact with the upper middle plate and crossbeam.

[0015] 3. The upper and lower structures are assembled from three parts by fixed bolts, nuts, first threaded holes, second threaded holes and third threaded holes. The upper and lower plate assemblies can move relative to each other by the extension and retraction of the push jack. The upper crossbeam is fixed to the upper plate by fixed bolts. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only represent some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a hydraulic support adjustment device for coal mines according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the bottom structure of the adjusting device according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the left front structure of the adjustment device according to an embodiment of the present invention;

[0020] Figure 4 This is an enlarged structural schematic diagram of section A in embodiment A of the present invention;

[0021] Figure 5 This is an enlarged structural schematic diagram of section B in embodiment B of the present invention.

[0022] In the diagram, 1. Upper left sliding plate; 2. Upper middle plate; 3. Upper right sliding plate; 4. Push jack; 5. Lower left base plate; 6. Lower middle base plate; 7. Crossbeam; 8. Lower right base plate; 9. Limiting plate; 10. Locking block; 11. U-shaped groove guide; 12. Guide slider; 13. First connecting ring; 14. First through hole; 15. Mounting plate; 16. Second connecting ring; 17. Second through hole; 18. First threaded hole; 19. Second threaded hole; 20. Third threaded hole; 21. First heat sink; 22. Second heat sink; 23. Groove; 24. Fixing bolt; 25. Connecting block; 26. Nut. Detailed Implementation

[0023] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1:

[0025] Please see Figures 1 to 5As shown, this embodiment discloses a hydraulic support adjustment device for coal mines, including an upper left sliding plate 1. A middle upper plate 2 is movably connected to one side wall of the upper left sliding plate 1, and a right upper sliding plate 3 is movably connected to one side wall of the middle upper plate 2. Pushing jacks 4 are provided on one side wall of the upper left sliding plate 1 and the right upper sliding plate 3. A lower left bottom plate 5 is provided on the lower surface of the upper left sliding plate 1. A middle lower bottom plate 6 is movably connected to one side wall of the lower left bottom plate 5. A crossbeam 7 is movably connected to the upper surface of the middle upper plate 2, and a right lower bottom plate 8 is movably connected to one side wall of the middle lower bottom plate 6. The lower bottom plate, consisting of the middle lower bottom plate 6, the lower left bottom plate 5, and the lower right bottom plate 8, provides support and serves as a track for the device. The upper middle plate 2, the upper left sliding plate 1, and the upper right sliding plate 3 form an upper sliding plate, which, in conjunction with the extension and retraction of the pushing jacks 4, drives the relative movement of the upper and lower plate components.

[0026] Limiting plates 9 are fixedly connected to the upper surface of one side wall of the lower left base plate 5 and the lower right base plate 8. A locking block 10 is movably connected to one side wall of the upper middle plate 2. U-shaped groove guides 11 are opened inside the lower left base plate 5 and the lower right base plate 8. By setting a pair of limiting plates 9, the pushing jack 4 can be restricted during use, thereby preventing the pushing jack 4 from making slight bending when in contact with the hydraulic support, which would cause the pushing jack 4 to deviate.

[0027] The U-shaped groove guide 11 has a sliding connection to a guide slider 12, which is connected to the upper middle plate 2. The upper left slide plate 1 and the upper right slide plate 3 are fixed to one side wall with a first connecting ring 13. Through the U-shaped groove guide 11 and the guide slider 12, the upper middle plate 2 can be guided during use, thereby reducing the phenomenon that the upper middle plate 2 will shift when the jack 4 is pushed.

[0028] The first connecting ring 13 has a first through hole 14 inside. The lower left base plate 5 and the lower right base plate 8 are both fixed to one side wall of the mounting plate 15. The second connecting ring 16 is fixed to one side wall of the mounting plate 15. The second connecting ring 16 has a second through hole 17 inside. Through the cooperation of the first connecting ring 13 and the first through hole 14, and with the fixing bolt 24 and nut 26, the pushing jack 4 and the connecting block 25 can be installed. It can also make the crossbeam 7 threadedly connected to the upper left slide plate 1, the upper right slide plate 3 and the upper middle plate 2 respectively.

[0029] The upper left slide plate 1 and the upper right slide plate 3 have a first threaded hole 18 on their front sides, the upper surface of the crossbeam 7 has a second threaded hole 19 in the middle, and the upper middle plate 2 has a third threaded hole 20 inside. Because of the first threaded hole 18, the second threaded hole 19 and the third threaded hole 20, when in use, the upper left slide plate 1, the upper right slide plate 3 and the upper middle plate 2 are connected to the crossbeam 7 by means of fixing bolts 24.

[0030] The lower left base plate 5, the lower middle base plate 6, and the lower right base plate 8 are all fixedly connected with a first heat dissipation plate 21. The upper middle plate 2 has a second heat dissipation plate 22 on the left and right sides inside. The upper middle plate 2 has a groove 23 inside one side wall, and the groove 23 is movably connected to the locking block 10. Due to the setting of the first heat dissipation plate 21 and the second heat dissipation plate 22, heat dissipation can be carried out when in use. Due to the cooperation between the locking block 10 and the groove 23, the crossbeam 7 can be limited, thereby preventing the crossbeam 7 from loosening. It can also protect the crossbeam 7 and prevent the hydraulic support from contacting the upper middle plate 2 and the crossbeam 7 after long-term use, which would cause damage to the crossbeam 7 and the upper middle plate 2.

[0031] The first connecting ring 13 has a threaded connection to a fixing bolt 24, and the number of fixing bolts 24 is set to several. The fixing bolts 24 are respectively located inside the first connecting ring 13, the second connecting ring 16, the first threaded hole 18, the second threaded hole 19, and the third threaded hole 20. The outer wall of the fixing bolt 24 is rotatably connected to a connecting block 25, and the connecting block 25 is connected to the push jack 4. The outer wall of the fixing bolt 24 is threadedly connected to a nut 26. Through the cooperation of the fixing bolt 24, the connecting block 25, and the nut 26, the upper left sliding plate 1, the upper right sliding plate 3, and the upper middle plate 2 can be threadedly connected to the crossbeam 7, and the push jack 4 can be installed with the connecting block 25.

[0032] Example 2:

[0033] Please see Figures 1 to 3As shown, this embodiment discloses a hydraulic support adjustment device for coal mines, including an upper left sliding plate 1. A middle upper plate 2 is movably connected to one side wall of the upper left sliding plate 1. A upper right sliding plate 3 is movably connected to one side wall of the middle upper plate 2. Pushing jacks 4 are provided on one side wall of the upper left sliding plate 1 and the upper right sliding plate 3. A lower left bottom plate 5 is provided on the lower surface of the upper left sliding plate 1. A middle lower bottom plate 6 is movably connected to one side wall of the lower left bottom plate 5. A crossbeam 7 is movably connected to the upper surface of the middle upper plate 2. A lower right bottom plate 8 is movably connected to one side wall of the middle lower bottom plate 6. Limiting plates 9 are fixedly connected to the upper surfaces of one side wall of the lower left bottom plate 5 and the lower right bottom plate 8. A locking block 10 is movably connected to one side wall of the middle upper plate 2. Both the lower left base plate 5 and the lower right base plate 8 have U-shaped groove guides 11 inside. Guide sliders 12 are slidably connected inside the U-shaped groove guides 11, and the guide sliders 12 are connected to the upper middle plate 2. A first connecting ring 13 is fixedly connected to one side wall of the upper left slide plate 1 and the upper right slide plate 3. A first through hole 14 is opened inside the first connecting ring 13. A mounting plate 15 is fixedly connected to one side wall of both the lower left base plate 5 and the lower right base plate 8. A second connecting ring 16 is fixedly connected to one side wall of the mounting plate 15. A second through hole 17 is opened inside the second connecting ring 16. A first threaded hole 18 is opened on the front of the upper left slide plate 1 and the upper right slide plate 3. A hole is opened in the middle of the upper surface of the crossbeam 7. The device is equipped with a second threaded hole 19, and a third threaded hole 20 is provided inside the upper middle plate 2. A first heat dissipation plate 21 is fixedly connected to the movable joints of the lower left bottom plate 5, the lower middle bottom plate 6, and the lower right bottom plate 8. Second heat dissipation plates 22 are provided on the left and right sides inside the upper middle plate 2. A groove 23 is provided inside one side wall of the upper middle plate 2, and the groove 23 is movably connected to the locking block 10. The device has a two-layer structure. To facilitate the transportation of non-removable parts, both the upper and lower layers are constructed by splicing three parts together with fixing bolts 24. The upper and lower plate assemblies move relative to each other through the extension and retraction of the pushing jack 4. The crossbeam 7 is connected to the upper plate by fixing bolts 24. The components are fixed and consist of the upper middle plate 2, the upper left sliding plate 1, the upper right sliding plate 3, the lower middle bottom plate 6, the lower left bottom plate 5, the lower right bottom plate 8, the crossbeam 7, and the pushing jack 4. The lower middle bottom plate 6, the lower left bottom plate 5, and the lower right bottom plate 8 form the lower bottom plate, which provides support and serves as a track for the equipment. The upper middle plate 2, the upper left sliding plate 1, and the upper right sliding plate 3 form the upper sliding plate. The installation process of the hydraulic support composed of these parts does not have dedicated equipment and requires the use of single pillars for long-distance operation of the lateral support frame. This is labor-intensive and carries the risk of the support frame tipping over. Using this set of equipment, the installation process is automated. This equipment has a large adjustment distance, a stable structure, and can push hydraulic supports weighing up to 40 tons.

[0034] In use, this utility model employs a monorail crane to slowly place the hydraulic support onto the upper sliding plate of the equipment. The upper sliding plate consists of a middle upper plate 2, a left upper sliding plate 1, and a right upper sliding plate 3. Fixing bolts 24 are aligned with the third threaded hole 20 inside the crossbeam 7 for placement. The crossbeam 7 is then fixedly connected to the upper sliding plate. A push jack 4 extends, driving the hydraulic support forward. The push jack 4 retracts, driving the upper plate assembly to retract as well. The fixing bolts 24 between the crossbeam 7 and the upper sliding plate are removed, and the upper plate assembly retracts. The crossbeam 7 remains stationary in its original position. The first threaded holes 18 at the front ends of the left upper sliding plate 1 and the right upper sliding plate 3 are bolted to the crossbeam 7. The push jack 4 then pushes the upper plate assembly and the crossbeam 7 forward, propelling the support forward and completing the installation of the hydraulic support.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] This invention is not limited to the optional embodiments described above, and anyone can derive other various forms of products based on the inspiration of this invention. The specific embodiments described above should not be construed as limiting the scope of protection of this invention; the scope of protection of this invention should be determined by the claims, and the specification can be used to interpret the claims.

Claims

1. A hydraulic support adjustment device for coal mines, comprising an upper left sliding plate (1), characterized in that: The upper left slide plate (1) is movably connected to the upper middle plate (2) on one side wall, the upper middle plate (2) is movably connected to the upper right slide plate (3) on one side wall, the upper left slide plate (1) and the upper right slide plate (3) are provided with a pushing jack (4) on one side wall, the lower left slide plate (1) is provided with a lower left bottom plate (5) on the lower left bottom plate (5) is movably connected to the lower middle bottom plate (6) on one side wall, the upper middle plate (2) is movably connected to a crossbeam (7), and the lower middle bottom plate (6) is movably connected to the lower right bottom plate (8) on one side wall.

2. The hydraulic support adjustment device for coal mines according to claim 1, characterized in that: Limiting plates (9) are fixedly connected to the upper surface of one side wall of the lower left base plate (5) and the lower right base plate (8). A locking block (10) is movably connected to one side wall of the upper middle plate (2). U-shaped groove guides (11) are provided inside the lower left base plate (5) and the lower right base plate (8).

3. The hydraulic support adjustment device for coal mines according to claim 2, characterized in that: The U-shaped groove guide (11) is internally slidably connected to a guide slider (12), and the guide slider (12) is connected to the middle upper plate (2). The left upper slide plate (1) and the right upper slide plate (3) are fixedly connected to one side wall of the first connecting ring (13).

4. The hydraulic support adjustment device for coal mines according to claim 3, characterized in that: The first connecting ring (13) has a first through hole (14) inside. The lower left base plate (5) and the lower right base plate (8) are both fixedly connected to a mounting plate (15). The mounting plate (15) is fixedly connected to a second connecting ring (16) on one side wall. The second connecting ring (16) has a second through hole (17) inside.

5. The hydraulic support adjustment device for coal mines according to claim 1, characterized in that: The upper left slide plate (1) and the upper right slide plate (3) are provided with a first threaded hole (18) on their front sides, the upper surface of the crossbeam (7) is provided with a second threaded hole (19) in the middle, and the upper middle plate (2) is provided with a third threaded hole (20) inside.

6. The hydraulic support adjustment device for coal mines according to claim 1, characterized in that: The lower left base plate (5), the lower middle base plate (6), and the lower right base plate (8) are all fixedly connected with a first heat sink plate (21). The upper middle plate (2) has a second heat sink plate (22) on its left and right sides. The upper middle plate (2) has a groove (23) inside its side wall, and the groove (23) is movably connected to the locking block (10).

7. A hydraulic support adjustment device for coal mines according to claim 3, characterized in that: The first connecting ring (13) is internally threaded with a fixing bolt (24), and the number of fixing bolts (24) is set to several. The fixing bolts (24) are respectively located inside the first connecting ring (13), the second connecting ring (16), the first threaded hole (18), the second threaded hole (19) and the third threaded hole (20). The outer wall of the fixing bolt (24) is rotatably connected with a connecting block (25), and the connecting block (25) is connected to the push jack (4). The outer wall of the fixing bolt (24) is threaded with a nut (26).

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