An assembled coal mine roadway supporting device

Abstract

The application discloses an assembled coal mine roadway supporting equipment, and relates to the technical field of underground coal mine supporting, which comprises two bases, a hydraulic cylinder, a supporting seat, an adjusting mechanism and a docking mechanism. The adjusting mechanism and the docking mechanism are arranged, the two bases are in contact with the two sides of the roadway, then the hydraulic cylinder is operated to drive the supporting seat to move upward, the connecting seat is synchronously moved upward, the supporting seat and the connecting seat support the top of the roadway, and the connecting seat and the connecting rod are automatically fixed; meanwhile, the two adjacent bases on the same side can be fixed, the roadway is conveniently supported, the equipment is designed in a standardized and modular manner, can be quickly assembled and disassembled, has the characteristics of compact structure, efficient installation and reusability, is suitable for coal mine roadways with different geological conditions and cross-sectional shapes, and can significantly improve the roadway supporting construction efficiency and safety and reduce the supporting cost.

Description

Technical Field

[0001] This invention relates to the field of underground support technology in coal mines, specifically a prefabricated coal mine roadway support device. Background Technology

[0002] Coal seam roadways are roadways that are excavated parallel to the coal seam plane and retained within the coal seam. In my country, coal mines are mainly mined underground, requiring the excavation of a large number of roadways underground. Roadway support is used to maintain the smooth flow of roadways and the stability of the surrounding rock, which is of great significance to coal mine construction and production. The basic purpose of roadway support is to mitigate and reduce the movement of the surrounding rock, so that the roadway cross-section does not shrink excessively, and at the same time to prevent the collapse of the scattered and damaged surrounding rock. The effectiveness of roadway support depends not only on the supporting force of the support itself, but also on a series of factors such as the properties of the surrounding rock, the mechanical properties of the support (supporting force and compressibility), the density of the support installation, the timing of the support installation, the quality of the support installation, and the contact method with the surrounding rock (point contact or surface contact).

[0003] However, the existing roadway support frame structure is fixed, making it difficult to adjust the support force in real time according to the deformation of the surrounding rock and effectively control the roadway deformation. In order to facilitate the support of the roadway, a prefabricated coal mine roadway support device is provided. Summary of the Invention

[0004] The purpose of this invention is to overcome the problems of existing roadway support equipment being unable to adapt to different roadway widths, unable to achieve modular rapid assembly, and having low disassembly and assembly efficiency, and to provide a prefabricated coal mine roadway support equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated coal mine roadway support device, comprising two bases, a hydraulic cylinder mounted on the top of each base, a support seat connected to the output end of the hydraulic cylinder, the distance between the two support seats being adjusted by an adjustment mechanism, and the bases on adjacent sides being docked by a docking mechanism, the adjustment mechanism including a connecting seat disposed between the two support seats, a connecting rod fixedly connected to the outer wall of the support seat, the connecting rod being slidably connected to the inner wall of the connecting seat, a first locking block fixedly connected to the top of one end of the connecting rod, a connecting plate disposed above the connecting seat, a first spring connected between the bottom end of the connecting plate and the connecting seat, a T-shaped frame fixedly connected to the bottom end of the connecting plate, the T-shaped frame being slidably connected up and down inside the connecting seat, and the T-shaped frame extending into the inner cavity of the connecting seat.

[0006] As a further embodiment of the present invention: the adjusting mechanism further includes a support plate, which is disposed above the support base. A second spring is connected between the bottom end of the support plate and the support base. A movable groove is formed at the top end of the support base. A movable plate is slidably connected to the inner wall of the movable groove. The movable plate is fixedly connected to the support plate. A displacement rod is slidably connected inside the support base and the connecting rod. A sliding rod is fixedly connected to one end of the displacement rod. The other end of the displacement rod extends into the inner cavity of the movable groove. A second locking block is slidably connected to one end of the displacement rod inside the connecting rod. An installation block is fixedly connected to one end of the second locking block. A third spring is connected between the installation block and the connecting rod. Inclined grooves are symmetrically formed on both sides of the second locking block. The sliding rod is slidably connected to the inner wall of the inclined groove.

[0007] As a further embodiment of the present invention: the docking mechanism includes a rotating disk, which is rotatably connected to both ends of the base. A mounting base is fixedly connected to the outer wall of the rotating disk, and a docking plate is rotatably connected to the inner wall of the mounting base. A first slot and a second slot are provided on the outer wall of the docking plate. A groove is provided on one side of the outer wall of the rotating disk located on the mounting base. An L-shaped frame is slidably connected to the inner wall of the groove. A rotating column is rotatably connected to the outer wall of the rotating disk. A threaded rod is fixedly connected between the two rotating columns and passes through the L-shaped frame. Positioning frames are symmetrically fixedly connected to both ends of the support base.

[0008] As a further embodiment of the present invention: the inner wall of the connecting seat is in contact with the outer wall of the connecting rod.

[0009] As a further embodiment of the present invention: the bottom end of the T-shaped frame is provided with a first toothed groove, and the top end of the first locking block engages with the first toothed groove.

[0010] As a further embodiment of the present invention: the outer wall of the movable plate is in contact with the inner wall of the movable groove, and a semi-circular surface is provided at one end of the displacement rod located in the inner cavity of the movable groove.

[0011] As a further embodiment of the present invention: the second card block has a displacement groove inside for the displacement rod to slide, and the outer wall of the sliding rod is in contact with the inner wall of the inclined groove.

[0012] As a further embodiment of the present invention: a second toothed groove is provided at the bottom end of the inner wall of the connecting seat, and the bottom end of the second locking block engages with the second toothed groove.

[0013] As a further embodiment of the present invention: the inner wall of the groove fits against the outer wall of the L-shaped frame, and the outer wall of the L-shaped frame is provided with a threaded hole, which matches the threaded rod.

[0014] As a further aspect of the present invention: the outer wall of the L-shaped frame is in contact with the inner walls of the first slot and the second slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are: By setting up adjustment and docking mechanisms, the two bases contact the two sides of the roadway respectively. Then, the hydraulic cylinder rotates to drive the support seat to move upward, and the connecting seat moves upward simultaneously. The support seat and connecting seat support the top of the roadway and automatically fix the connecting seat and connecting rod. At the same time, it can fix two adjacent bases on the same side, which facilitates the roadway support operation. It adopts a standardized and modular design, which can realize rapid assembly and disassembly. It has the characteristics of compact structure, efficient installation, and reusability. It is suitable for coal mine roadways with different geological conditions and cross-sectional shapes, significantly improving the efficiency and safety of roadway support construction and reducing support costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the installation of the connector of the present invention; Figure 3 This is a cross-sectional view of the connector of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional view of the support base of the present invention; Figure 6 This is a schematic diagram of the structure of the second card block of the present invention; Figure 7 This is a schematic diagram of the installation of the rotating disk of the present invention; Figure 8 This is a cross-sectional view of the rotating disk of the present invention.

[0017] In the diagram: 1. Base; 2. Hydraulic cylinder; 3. Support seat; 4. Adjustment mechanism; 401. Connecting seat; 402. Connecting rod; 403. First locking block; 404. Connecting plate; 405. First spring; 406. T-shaped frame; 407. Support plate; 408. Second spring; 409. Movable plate; 410. Movable groove; 411. Displacement rod; 412. Sliding rod; 413. Inclined groove; 414. Second locking block; 415. Mounting block; 416. Third spring; 5. Docking mechanism; 501. Rotating disk; 502. Mounting seat; 503. Docking plate; 504. First slot; 505. Second slot; 506. Groove; 507. L-shaped frame; 508. Rotating column; 509. Threaded rod; 6. Displacement groove; 7. Positioning frame. Detailed Implementation

[0018] 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.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not 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 invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0020] Please see Figures 1 to 8 In this embodiment of the invention, a prefabricated coal mine roadway support device includes two bases 1. A hydraulic cylinder 2 is installed at the top of the base 1. The output end of the hydraulic cylinder 2 is connected to a support seat 3. The distance between the two support seats 3 is adjusted by an adjustment mechanism 4. The bases 1 on adjacent sides are docked by a docking mechanism 5. The adjustment mechanism 4 includes a connecting seat 401, which is disposed between the two support seats 3. A connecting rod 402 is fixedly connected to the outer wall of the support seat 3. The connecting rod 402 is slidably connected to the inner wall of the connecting seat 401. A first locking block 403 is fixedly connected to the top of one end of the connecting rod 402. A connecting plate 404 is disposed above the connecting seat 401. A first spring 405 is connected between the bottom end of the connecting plate 404 and the connecting seat 401. A T-shaped frame 406 is fixedly connected to the bottom end of the connecting plate 404. The T-shaped frame 406 is slidably connected to the inside of the connecting seat 401 and extends into the inner cavity of the connecting seat 401.

[0021] The adjustment mechanism 4 also includes a support plate 407, which is positioned above the support base 3. A second spring 408 is connected between the bottom end of the support plate 407 and the support base 3. A movable groove 410 is provided at the top end of the support base 3. A movable plate 409 is slidably connected to the inner wall of the movable groove 410. The movable plate 409 is fixedly connected to the support plate 407. A displacement rod 411 is slidably connected inside the support base 3 and the connecting rod 402. A slide rod 412 is fixedly connected to one end of the displacement rod 411. The other end of the displacement rod 411 extends into the inner cavity of the movable groove 410. A second locking block 414 is slidably connected to one end of the displacement rod 411 inside the connecting rod 402. An installation block 415 is fixedly connected to one end of the second locking block 414. A third spring 416 is connected between the installation block 415 and the connecting rod 402. Inclined grooves 413 are symmetrically provided on both sides of the second locking block 414. The slide rod 412 is slidably connected to the inner wall of the inclined groove 413.

[0022] In this embodiment: when supporting the roadway, the two bases 1 move away from each other, and the two bases 1 respectively contact the two sides of the roadway. At this time, the connecting rod 402 slides within the connecting seat 401. Then, the hydraulic cylinder 2 is activated, and the operation of the hydraulic cylinder 2 drives the support seat 3 to move upward. The support seat 3 drives the connecting seat 401 to move upward synchronously through the connecting rod 402. When the top of the connecting plate 404 contacts the top of the roadway, the connecting seat 401 continues to move upward, and the connecting plate 404 moves downward relative to the connecting seat 401, which compresses the first spring 405. The displacement of the connecting plate 404 drives the T-shaped frame 406 to move. The displacement of the T-shaped frame 406 engages with the first locking block 403, which fixes the connecting seat 401 and the connecting rod 402. When the support plate 407 contacts the top of the tunnel, the support seat 3 continues to move upward, and the support plate 407 moves downward relative to the support seat 3, compressing the second spring 408. The displacement of the support plate 407 drives the movable plate 409 to move. The movable plate 409 slides in the movable groove 410. The displacement of the movable plate 409 contacts the displacement rod 411, pushing the displacement rod 411 to move. The displacement of the displacement rod 411 drives the sliding rod 412 to move. The sliding rod 412 slides in the inclined groove 413, pushing the second spring 408 to move. The second locking block 414 is displaced, and the displacement of the second locking block 414 causes the mounting block 415 to be displaced synchronously, which compresses the third spring 416. The bottom end of the second locking block 414 engages with the inner wall of the connecting seat 401, thereby fixing the connecting seat 401 and the connecting rod 402. Thus, when the support seat 3 or the connecting seat 401 supports the top of the roadway, the connecting seat 401 and the connecting rod 402 are fixed, which makes it easy to adjust the distance between the two bases 1 to adapt to roadways of different sizes.

[0023] Please refer to this carefully. Figures 7 to 8 The docking mechanism 5 includes a rotating disk 501, which is rotatably connected to both ends of the base 1. A mounting base 502 is fixedly connected to the outer wall of the rotating disk 501. A docking plate 503 is rotatably connected to the inner wall of the mounting base 502. A first slot 504 and a second slot 505 are provided on the outer wall of the docking plate 503. A groove 506 is provided on one side of the mounting base 502 on the outer wall of the rotating disk 501. An L-shaped frame 507 is slidably connected to the inner wall of the groove 506. A rotating column 508 is rotatably connected to the outer wall of the rotating disk 501. A threaded rod 509 is fixedly connected between the two rotating columns 508. The threaded rod 509 passes through the L-shaped frame 507. Positioning frames 7 are symmetrically fixedly connected to both ends of the support base 3.

[0024] In this embodiment: the docking plate 503 can rotate relative to the rotating disk 501, and the angle of rotation of the docking plate 503 is ninety degrees; when docking with the base 1 on the same side, the two docking plates 503 that are close to each other rotate in opposite directions and the two docking plates 503 are in contact, so that neither of the two docking plates 503 can rotate relative to the rotating disk 501. The first slot 504 and the second slot 505 on the two docking plates 503 come into contact. Then, the rotating column 508 is rotated, and the rotation of the rotating column 508 drives the threaded rod 509 to rotate. The rotation of the threaded rod 509 drives the L-shaped frame 507 to move. The L-shaped frame 507 slides along the inner wall of the groove 506. The L-shaped frame 507 is inserted into the first slot 506 in sequence. Within slots 504 and 505, the two mating plates 503 are fixed together, thereby fixing the two adjacent bases 1 on the same side, completing the assembly of the support structure, facilitating roadway support operations. Adopting a standardized and modular design, it enables rapid assembly and disassembly, featuring a compact structure, efficient installation, and reusability. It is suitable for coal mine roadways with different geological conditions and cross-sectional shapes, significantly improving roadway support construction efficiency and safety, and reducing support costs. When the hydraulic cylinder 2 drives the support base 3 to its lowest point, facilitating equipment movement, the mating plate 503 is vertical, and the mating plate is inserted into the positioning frame 7 for positioning.

[0025] Please refer to this carefully. Figures 2 to 6 The inner wall of the connecting seat 401 is in contact with the outer wall of the connecting rod 402.

[0026] In this embodiment: the two bases 1 move away from each other and contact the two sides of the roadway respectively. At this time, the connecting rod 402 slides in the connecting seat 401.

[0027] Please refer to this carefully. Figures 2 to 6 The bottom end of the T-shaped frame 406 is provided with a first toothed groove, and the top end of the first locking block 403 engages with the first toothed groove.

[0028] In this embodiment: when the top of the connecting plate 404 contacts the top of the tunnel, the connecting seat 401 continues to move upward, and the connecting plate 404 moves downward relative to the connecting seat 401, causing compression on the first spring 405. The displacement of the connecting plate 404 drives the T-shaped frame 406 to move. The displacement of the T-shaped frame 406 engages with the first locking block 403, thus fixing the connecting seat 401 and the connecting rod 402.

[0029] Please refer to this carefully. Figures 2 to 6 The outer wall of the movable plate 409 fits against the inner wall of the movable groove 410, and the displacement rod 411 is provided with a semi-circular surface at one end of the inner cavity of the movable groove 410.

[0030] In this embodiment: when the support plate 407 contacts the top of the tunnel, the support seat 3 continues to move upward, and the support plate 407 moves downward relative to the support seat 3, causing compression on the second spring 408. The displacement of the support plate 407 drives the movable plate 409 to move. The movable plate 409 slides in the movable groove 410. The displacement of the movable plate 409 contacts the displacement rod 411 and pushes the displacement rod 411 to move.

[0031] Please refer to this carefully. Figures 2 to 6 The second locking block 414 has a displacement groove 6 inside for the displacement rod 411 to slide, and the outer wall of the sliding rod 412 is in contact with the inner wall of the inclined groove 413.

[0032] In this embodiment: the displacement rod 411 moves and drives the slide rod 412 to move. The slide rod 412 slides in the inclined groove 413 and pushes the second locking block 414 to move. The displacement of the second locking block 414 drives the mounting block 415 to move synchronously, which compresses the third spring 416.

[0033] Please refer to this carefully. Figures 2 to 6 The bottom of the inner wall of the connecting seat 401 is provided with a second toothed groove, and the bottom of the second locking block 414 engages with the second toothed groove.

[0034] In this embodiment, the bottom end of the second locking block 414 engages with the inner wall of the connecting seat 401, thereby fixing the connecting seat 401 and the connecting rod 402.

[0035] Please refer to this carefully. Figures 7 to 8 The inner wall of the groove 506 fits against the outer wall of the L-shaped frame 507. The outer wall of the L-shaped frame 507 has a threaded hole that matches the threaded rod 509.

[0036] In this embodiment: Rotating the rotating column 508 causes the threaded rod 509 to rotate, and the rotation of the threaded rod 509 causes the L-shaped frame 507 to move, and the L-shaped frame 507 slides along the inner wall of the groove 506.

[0037] Please refer to this carefully. Figures 7 to 8 The outer wall of the L-shaped frame 507 is in contact with the inner wall of the first slot 504 and the second slot 505.

[0038] In this embodiment: the L-shaped bracket 507 slides along the inner wall of the groove 506, and the L-shaped bracket 507 is inserted into the first slot 504 and the second slot 505 in sequence to fix the two mating plates 503.

[0039] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A prefabricated coal mine roadway support device, characterized in that, The system includes two bases (1), with a hydraulic cylinder (2) mounted on the top of each base (1). The output end of the hydraulic cylinder (2) is connected to a support base (3). The distance between the two support bases (3) is adjusted by an adjustment mechanism (4). The bases (1) on adjacent sides are connected by a docking mechanism (5). The adjustment mechanism (4) includes a connecting seat (401), which is located between the two support bases (3). A connecting rod (402) is fixedly connected to the outer wall of each support base (3), and the connecting rod (402) is slidably connected to the support base (3). On the inner wall of the connecting seat (401), a first locking block (403) is fixedly connected to the top of one end of the connecting rod (402). A connecting plate (404) is provided above the connecting seat (401). A first spring (405) is connected between the bottom end of the connecting plate (404) and the connecting seat (401). A T-shaped frame (406) is fixedly connected to the bottom end of the connecting plate (404). The T-shaped frame (406) is slidably connected to the inside of the connecting seat (401) and extends into the inner cavity of the connecting seat (401).

2. The prefabricated coal mine roadway support equipment according to claim 1, characterized in that, The adjusting mechanism (4) further includes a support plate (407), which is disposed above the support base (3). A second spring (408) is connected between the bottom end of the support plate (407) and the support base (3). A movable groove (410) is provided at the top end of the support base (3). A movable plate (409) is slidably connected to the inner wall of the movable groove (410). The movable plate (409) is fixedly connected to the support plate (407). A displacement rod (411) is slidably connected inside the support base (3) and the connecting rod (402). One end of the displacement rod (411) is fixedly connected to a slide rod (412), and the other end of the displacement rod (411) extends into the inner cavity of the movable groove (410). The interior of the connecting rod (402) is slidably connected to a second locking block (414) at one end of the displacement rod (411). One end of the second locking block (414) is fixedly connected to an installation block (415). A third spring (416) is connected between the installation block (415) and the connecting rod (402). Inclined grooves (413) are symmetrically opened on both sides of the second locking block (414), and the slide rod (412) is slidably connected to the inner wall of the inclined groove (413).

3. The prefabricated coal mine roadway support equipment according to claim 2, characterized in that, The docking mechanism (5) includes a rotating disk (501), which is rotatably connected to both ends of the base (1). The outer wall of the rotating disk (501) is fixedly connected to a mounting base (502), and the inner wall of the mounting base (502) is rotatably connected to a docking plate (503). The outer wall of the docking plate (503) is provided with a first slot (504) and a second slot (505). The outer wall of the rotating disk (501) is provided with a groove (506) on one side of the mounting base (502). The inner wall of the groove (506) is slidably connected to an L-shaped frame (507). The outer wall of the rotating disk (501) is rotatably connected to a rotating column (508). A threaded rod (509) is fixedly connected between the two rotating columns (508). The threaded rod (509) passes through the L-shaped frame (507). The two ends of the support base (3) are symmetrically fixedly connected to positioning frames (7).

4. The prefabricated coal mine roadway support equipment according to claim 2, characterized in that, The inner wall of the connecting seat (401) is in contact with the outer wall of the connecting rod (402).

5. A prefabricated coal mine roadway support device according to claim 2, characterized in that, The bottom end of the T-shaped frame (406) is provided with a first toothed groove, and the top end of the first locking block (403) engages with the first toothed groove.

6. A prefabricated coal mine roadway support device according to claim 2, characterized in that, The outer wall of the movable plate (409) is in contact with the inner wall of the movable groove (410), and the displacement rod (411) is provided with a semi-circular surface at one end of the inner cavity of the movable groove (410).

7. A prefabricated coal mine roadway support device according to claim 2, characterized in that, The second locking block (414) has a displacement groove (6) inside for the displacement rod (411) to slide, and the outer wall of the sliding rod (412) is in contact with the inner wall of the inclined groove (413).

8. A prefabricated coal mine roadway support device according to claim 2, characterized in that, The bottom of the inner wall of the connecting seat (401) is provided with a second toothed groove, and the bottom of the second locking block (414) engages with the second toothed groove.

9. A prefabricated coal mine roadway support device according to claim 3, characterized in that, The inner wall of the groove (506) fits against the outer wall of the L-shaped frame (507), and the outer wall of the L-shaped frame (507) is provided with a threaded hole, which matches the threaded rod (509).

10. A prefabricated coal mine roadway support device according to claim 3, characterized in that, The outer wall of the L-shaped frame (507) is in contact with the inner walls of the first slot (504) and the second slot (505).

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