Roadway supporting equipment for coal mining tunneling

Abstract

The utility model discloses roadway supporting equipment for coal mining tunneling, belongs to the technical field of roadway supporting, and aims to solve the problem that the roadway supporting cost is increased due to the fact that supporting frames with different heights are needed when a roadway is supported. Symmetrically-distributed side plates are fixed to the middle of one side face of the inner side wall of the sleeve rod, and a gear is rotationally connected between the two side plates and engaged with the moving rod. The height of the first supporting plate and the height of the second supporting plate can be adjusted according to different heights of the top of a roadway through the movable rod, the first supporting plate, the second supporting plate, the bolt, the gear and the movable rack, and the position of the movable rack can be limited through the inserted link and the mounting strip. Therefore, the height of the first supporting plate and the height of the second supporting plate can be adjusted by adjusting the height of the moving rod, the positions of different heights in the roadway can be conveniently supported, and the roadway supporting cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel support, and in particular relates to a tunnel support device for coal mining and excavation. Background Art

[0002] Foundation pit support is a measure of support, reinforcement and protection for the side walls and surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. As a structural system, foundation pit support should meet the requirements of stability and deformation, that is, the two limit states mentioned in the usual specifications, namely the bearing capacity limit state and the normal use limit state. The so-called bearing capacity limit state, for foundation pit support, means the destruction, dumping, sliding of the supporting structure or the destruction of the surrounding environment, resulting in a larger range of instability.

[0003] Most of the existing support frames used in coal mining and excavation tunnels have fixed heights, and the height of the coal mining and excavation tunnels cannot be completely unified during excavation. Large height deviations will occur during the excavation process. When support frames of the same height are used to protect and support the tunnels, it is not possible to conveniently play a supporting role. Support frames of different heights are required to support and protect the tunnels, which greatly increases the support cost of the coal mining and excavation tunnels.

[0004] Therefore, there is a need for a tunnel support equipment for coal mining and excavation to solve the problem in the prior art that when supporting the tunnel, support frames of different heights are required, thereby increasing the cost of tunnel support. Utility Model Content

[0005] The purpose of the utility model is to provide a tunnel support device for coal mining and excavation to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tunnel support equipment for coal mining and excavation, comprising two sleeve rods, a moving rod movably engaged inside the sleeve rods, a symmetrically distributed side plate is fixed to the middle of a side surface of an inner wall of the sleeve rod, a gear is rotatably connected between the two side plates, the gear is meshed with the moving rod, a top opening is provided on one side of the top surface of the sleeve rod, a moving rack is movably engaged inside the top opening, the moving rack is meshed with the gear, a first support plate is rotatably connected to the top surface of the moving rod on one side, and a second support plate is rotatably connected to the top surface of the moving rod on the other side, an inner groove is provided on one side of the top surface of the sleeve rod, a limiting assembly is arranged inside the inner groove, a positioning plate is detachably connected inside the inner groove, and a support assembly is arranged at the bottom of the outer wall of the sleeve rod.

[0007] It should be noted in the scheme that the limit assembly includes a limit column, which is fixed to a side of the inner wall of the inner groove, and one end of the outer wall of the limit column is movably engaged with a push plate, and the push plate is movably engaged in the inner groove, and a spring is provided on the outer wall of the limit column, one end of the spring is in contact with a side of the inner wall of the inner groove, and the other end of the spring is in contact with a side of the push plate, and the other side of the push plate is fixed with symmetrically distributed positioning columns.

[0008] It is further worth mentioning that the positioning plate is provided with symmetrically distributed embedding holes that cooperate with the positioning column on one side close to the spring. The positioning column is detachably connected in the embedding hole, and a connecting rod is fixed between the two positioning plates on one side close to each other.

[0009] It should be further explained that the supporting assembly includes a fixing bar, which is fixed to the middle and bottom of the opposite side surfaces of the outer wall of the sleeve rod, and a threaded rod is rotatably connected between the two fixing bars, and a third limiter is fixed to the bottom of the opposite side surfaces of the outer wall of the sleeve rod respectively, and a rotating rod is rotatably connected in the third limiter, a second limiter is fixed in the middle of the top surface of the rotating rod, and a rotating rod is rotatably connected in the second limiter, the outer wall of the threaded rod is rotatably connected to the first limiter, and one end of the rotating rod is rotatably connected to the first limiter.

[0010] As a preferred embodiment, symmetrically distributed mounting strips are fixed to one side of the two sleeve rods close to each other, and an insertion rod is detachably connected between the two mounting strips and the bottom of the movable rack.

[0011] As a preferred embodiment, two side surfaces of the inner wall of the top opening are respectively provided with card slots, and two opposite side surfaces of the outer wall of the movable rack are respectively fixed with card strips, and the card strips are movably engaged in the card slots.

[0012] As a preferred embodiment, a slot is formed on the top surface of the inner groove, a pull bar is movably engaged inside the slot, and the bottom surface of the pull bar is fixed to the top surface of the push plate.

[0013] As a preferred implementation, the first support plate and the second support plate are rotatably connected by bolts at one end close to each other.

[0014] Compared with the prior art, the tunnel support equipment for coal mining and excavation provided by the utility model has at least the following beneficial effects:

[0015] (1) By setting a movable rod, a first support plate, a second support plate, a bolt, a gear and a movable rack, the height of the first support plate and the second support plate can be adjusted according to the different heights of the tunnel top. By setting a plug rod and a mounting strip, the position of the movable rack can be limited, so that the height of the first support plate and the second support plate can be adjusted by adjusting the height of the movable rod, which is convenient for supporting different height positions in the tunnel and reducing the tunnel support cost.

[0016] (2) The threaded rod, the first limiter, the rotating rod, the second limiter and the rotatable rod are provided to further support the sleeve rod, thereby preventing the sleeve rod from tilting due to external force when supported.

[0017] (3) By providing the first support plate, the second support plate, the bolts, the positioning columns and the positioning plate, the entire support equipment is easy to install and disassemble, thereby improving the efficiency of installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the limit assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the sleeve rod of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the installation strip of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the first support plate of the utility model;

[0023] Figure 6 For this utility model Figure 1 A is a schematic diagram of the partially enlarged structure of the middle part;

[0024] Figure 7 For this utility model Figure 5 A schematic diagram of the partially enlarged structure of B in the middle;

[0025] Figure 8 For this utility model Figure 5 A schematic diagram of the partially enlarged structure of C in the middle;

[0026] Fig. 9 It is a partial structural schematic diagram of the second support plate of the utility model.

[0027] In the figure:

[0028] 100, sleeve rod; 101, moving rod; 102, moving rack; 103, gear; 104, side plate;

[0029] 200, card strip; 201, card slot; 202, top opening;

[0030] 300, first support plate; 301, second support plate; 302, bolt;

[0031] 400, inner groove; 401, slot; 402, push plate; 403, limit column; 404, spring; 405, pull bar; 406, positioning column; 407, embedded hole; 408, positioning plate; 409, connecting rod;

[0032] 500, fixed bar; 501, hand wheel; 502, threaded rod; 503, first stopper; 504, rotating rod; 505, second stopper; 506, third stopper; 507, rotating rod;

[0033] 600, mounting strip; 601, plug rod. DETAILED DESCRIPTION

[0034] See also Figure 1-9 The utility model provides a tunnel support device for coal mining and excavation, including two sleeve rods 100, wherein a mobile rod 101 is movably engaged inside the sleeve rods 100, a symmetrically distributed side plate 104 is fixed to the middle of a side surface of the inner wall of the sleeve rod 100, a gear 103 is rotatably connected between the two side plates 104, the gear 103 is meshed with the mobile rod 101, a top opening 202 is opened on one side of the top surface of the sleeve rod 100, and a mobile rod 101 is movably engaged inside the top opening 202. The rack 102 is meshed with the gear 103. The top surface of the moving rod 101 on one side is rotatably connected to the first support plate 300, and the top surface of the moving rod 101 on the other side is rotatably connected to the second support plate 301. An inner groove 400 is provided on one side of the top surface of the sleeve rod 100, and a limiting assembly is arranged inside the inner groove 400. A positioning plate 408 is detachably connected inside the inner groove 400, and a support assembly is arranged at the bottom of the outer wall of the sleeve rod 100.

[0035] Further Figure 2 As shown, the limiting assembly includes a limiting column 403, the limiting column 403 is fixed to a side of the inner wall of the inner groove 400, one end of the outer wall of the limiting column 403 is movably engaged with a push plate 402, the push plate 402 is movably engaged in the inner groove 400, and the outer wall of the limiting column 403 is provided with a spring 404, one end of the spring 404 is in contact with a side of the inner wall of the inner groove 400, and the other end of the spring 404 is in contact with a side of the push plate 402, and the other side of the push plate 402 is fixed with symmetrically distributed positioning columns 406.

[0036] By providing the limiting assembly, the position of the positioning plate 408 can be limited, thereby enabling the two sleeve rods 100 to be assembled into a whole.

[0037] Further as Figure 2 As shown, the positioning plate 408 is provided with symmetrically distributed embedding holes 407 that cooperate with the positioning column 406 on one side close to the spring 404. The positioning column 406 is detachably connected in the embedding hole 407, and a connecting rod 409 is fixed between the two positioning plates 408 on one side close to each other.

[0038] By providing the embedding hole 407 , the positioning column 406 can fix the position of the positioning plate 408 .

[0039] Further as Figure 6 As shown, the support assembly includes a fixing bar 500, which is fixed to the middle and bottom of the two opposite side surfaces of the outer wall of the sleeve rod 100, and a threaded rod 502 is rotatably connected between the two fixing bars 500, and the non-threaded positions at both ends of the outer wall of the threaded rod 502 are rotatably connected to the fixing bar 500 respectively, and a hand wheel 501 is fixed to the top of the threaded rod 502, and the bottom of the two opposite side surfaces of the outer wall of the sleeve rod 100 are respectively fixed, and a rotating rod 507 is rotatably connected in the third limiter 506, and a second limiter 505 is fixed in the middle of the top surface of the rotating rod 507, and a rotating rod 504 is rotatably connected in the second limiter 505, and a first limiter 503 is rotatably connected to the outer wall of the threaded rod 502, and one end of the rotating rod 504 is rotatably connected to the first limiter 503.

[0040] By providing the support assembly, the rotating rod 507 can support the sleeve rod 100, so that the position of the sleeve rod 100 is more stable.

[0041] Further as Figure 4 As shown, two sleeve rods 100 are respectively fixed with symmetrically distributed mounting bars 600 on one side close to each other, and an insertion rod 601 is detachably connected between the two mounting bars 600 and the bottom of the movable rack 102 .

[0042] By providing the mounting strip 600 and the inserting rod 601 , the position of the movable rack 102 can be fixed.

[0043] This scheme has the following working process: when supporting the tunnel, the two hand wheels 501 on one sleeve rod 100 are manually rotated respectively, and the rotation of the hand wheel 501 drives the threaded rod 502 to rotate, and the rotation of the threaded rod 502 drives the first limiter 503 to move, and the movement of the first limiter 503 drives the moving rod 101 to move, and the movement of the moving rod 101 causes the retracted rotating rod 507 to rotate until the rotating rod 507 is in a horizontal state. At this time, the position of the sleeve rod 100 is supported by the support column, and the other sleeve rod 100 is supported in the same way. The distance between the two sleeve rods 100 is adjusted, and the pulling bars 405 on both sides are pulled by two people at the same time. The movement of the pulling bar 405 drives the positioning column 406 to move, so that the spring 404 is compressed, and then the two positioning plates 408 are pressed down, so that the positioning plate 408 is engaged in the inner groove 400, and the restriction on the pulling bar 405 is released. The elastic force of the spring 404 is released, so that the positioning column 406 is stuck in the embedded hole 407, and the two sleeve rods 100 are connected.

[0044] When supporting the tunnel, the insertion rods 601 on both sides are removed manually, and the folded first support plate 300 and the second support plate 301 are unfolded, and the first support plate 300 and the second support plate 301 are fixed by bolts 302. Two people manually pull down the moving racks 102 on both sides at the same time, and the moving rack 102 moves downward to drive the gear 103 to rotate, and the rotation of the gear 103 drives the moving rod 101 to move upward until the first support plate 300 and the second support plate 301 are in contact with the top of the tunnel. Two people connect the insertion rods 601 to the mounting strips 600 respectively, so that the position of the moving rod 101 is fixed.

[0045] When the entire device is disassembled, the insertion rods 601 on both sides are removed respectively, and the movable rack 102 is moved upward at the same time to restore the movable rod 101 to its original position. The bolt 302 is removed to rotate the first support plate 300 and the second support plate 301 and to be in a folded state. The hand wheels 501 are manually rotated to put the rotating rod 507 in a folded state. The pulling bar 405 is manually pulled at the same time to remove the positioning plate 408, and finally the entire device is disassembled.

[0046] According to the above working process, it can be known that: through the setting of the moving rod 101, the first support plate 300, the second support plate 301, the bolt 302, the gear 103 and the moving rack 102, the height of the first support plate 300 and the second support plate 301 can be adjusted according to the different heights of the tunnel top, and through the setting of the insertion rod 601 and the installation strip 600, the position of the moving rack 102 can be limited, so that the height of the first support plate 300 and the second support plate 301 can be adjusted by adjusting the height of the moving rod 101, which is convenient for supporting different height positions in the tunnel and reducing the tunnel support cost.

[0047] By providing the threaded rod 502 , the first stopper 503 , the rotating rod 504 , the second stopper 505 and the rotating rod 507 , the sleeve rod 100 can be further supported, thereby preventing the sleeve rod 100 from tilting due to external force when supported.

[0048] By providing the first support plate 300, the second support plate 301, the bolts 302, the positioning columns and the positioning plate 408, the entire support equipment is easy to install and disassemble, thereby improving the efficiency of installation and disassembly.

[0049] Further as Figure 7 As shown, two side surfaces of the inner wall of the top opening 202 are respectively provided with clamping grooves 201 , and two opposite side surfaces of the outer wall of the movable rack 102 are respectively fixed with clamping strips 200 , and the clamping strips 200 are movably engaged in the clamping grooves 201 .

[0050] By providing the clamping strip 200 and the clamping slot 201 , the position of the movable rack 102 can be limited, so that the movable rack 102 can be easily moved.

[0051] Further as Figure 2 As shown, a slot 401 is formed on the top surface of the inner groove 400 , a pull bar 405 is movably engaged inside the slot 401 , and the bottom surface of the pull bar 405 is fixed to the top surface of the push plate 402 .

[0052] The pulling bar 405 is provided so that the pushing plate 402 can be moved, so as to separate the positioning column 406 from the embedding hole 407 .

[0053] Further as Fig. 9 As shown, the first support plate 300 and the second support plate 301 are rotatably connected by a bolt 302 between one end close to each other.

[0054] The provided bolts 302 enable the first support plate 300 and the second support plate 301 to be stably connected.

[0055] In summary, when supporting the tunnel, the two hand wheels 501 on one sleeve rod 100 are manually rotated respectively, and the rotation of the hand wheel 501 drives the threaded rod 502 to rotate, and the rotation of the threaded rod 502 drives the first limiter 503 to move, and the movement of the first limiter 503 drives the moving rod 101 to move, and the movement of the moving rod 101 causes the retracted rotating rod 507 to rotate until the rotating rod 507 is in a horizontal state. At this time, the position of the sleeve rod 100 is supported by the support column, and the other sleeve rod 100 is supported in the same way. The distance between the two sleeve rods 100 is adjusted, and the pulling bars 405 on both sides are pulled by two people at the same time. The pulling bar 405 moves and drives the positioning column 406 to move, so that the spring 404 is compressed, and then the two positioning plates 408 are pressed down, so that the positioning plate 408 is engaged in the inner groove 400, and the restriction on the pulling bar 405 is released. The spring 404 releases the elastic force, so that the positioning column 406 is stuck in the embedding hole 407, and the two sleeve rods 100 are connected.

[0056] When supporting the tunnel, the insertion rods 601 on both sides are removed manually, and the folded first support plate 300 and the second support plate 301 are unfolded, and the first support plate 300 and the second support plate 301 are fixed by bolts 302. Two people manually pull down the moving racks 102 on both sides at the same time, and the moving rack 102 moves downward to drive the gear 103 to rotate, and the rotation of the gear 103 drives the moving rod 101 to move upward until the first support plate 300 and the second support plate 301 are in contact with the top of the tunnel. Two people connect the insertion rods 601 to the mounting strips 600 respectively, so that the position of the moving rod 101 is fixed.

[0057] When the entire device is disassembled, the insertion rods 601 on both sides are removed respectively, and the movable rack 102 is moved upward at the same time to restore the movable rod 101 to its original position. The bolt 302 is removed to rotate the first support plate 300 and the second support plate 301 and to be in a folded state. The hand wheels 501 are manually rotated to put the rotating rod 507 in a folded state. The pulling bar 405 is manually pulled at the same time to remove the positioning plate 408, and finally the entire device is disassembled.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel support device for coal mining and excavation, comprising two sleeve rods (100), characterized in that: The sleeve rod (100) is internally engaged with a moving rod (101), and a symmetrically distributed side plate (104) is fixed to the middle of a side surface of the inner side wall of the sleeve rod (100). A gear (103) is rotatably connected between the two side plates (104), and the gear (103) is meshed with the moving rod (101). A top opening (202) is provided on one side of the top surface of the sleeve rod (100), and a moving rack (102) is movably engaged inside the top opening (202). The moving rack (102) is ) is meshed with the gear (103), the top surface of the moving rod (101) on one side is rotatably connected to a first support plate (300), and the top surface of the moving rod (101) on the other side is rotatably connected to a second support plate (301), an inner groove (400) is provided on one side of the top surface of the sleeve rod (100), a limit position component is provided inside the inner groove (400), a positioning plate (408) is detachably connected inside the inner groove (400), and a support component is provided at the bottom of the outer wall of the sleeve rod (100).

2. A tunnel support device for coal mining and excavation according to claim 1, characterized in that: The limiting assembly comprises a limiting column (403), wherein the limiting column (403) is fixed to a side surface of an inner wall of the inner groove (400), and a push plate (402) is movably engaged at one end of an outer wall of the limiting column (403), and the push plate (402) is movably engaged in the inner groove (400). A spring (404) is arranged on the outer wall of the limiting column (403), and one end of the spring (404) contacts a side surface of the inner wall of the inner groove (400), and the other end of the spring (404) contacts a side surface of the push plate (402), and symmetrically distributed positioning columns (406) are fixed to the other side surface of the push plate (402).

3. A tunnel support device for coal mining and excavation according to claim 2, characterized in that: The positioning plate (408) is provided with symmetrically distributed embedding holes (407) that match the positioning column (406) on one side close to the spring (404); the positioning column (406) is detachably connected in the embedding hole (407); and a connecting rod (409) is fixed between the two positioning plates (408) on one side close to each other.

4. A tunnel support device for coal mining and excavation according to claim 3, characterized in that: The support assembly comprises a fixing bar (500), wherein the fixing bar (500) is fixed to the middle and bottom of two opposite side surfaces of the outer wall of the sleeve rod (100), a threaded rod (502) is rotatably connected between the two fixing bars (500), third stoppers (506) are respectively fixed to the bottom of two opposite side surfaces of the outer wall of the sleeve rod (100), a rotating rod (507) is rotatably connected inside the third stopper (506), a second stopper (505) is fixed to the middle of the top surface of the rotating rod (507), a rotating rod (504) is rotatably connected inside the second stopper (505), a first stopper (503) is rotatably connected to the outer wall of the threaded rod (502), and one end of the rotating rod (504) is rotatably connected to the first stopper (503).

5. A tunnel support device for coal mining and excavation according to claim 4, characterized in that: Symmetrically distributed mounting bars (600) are fixed to the sides of the two sleeve rods (100) close to each other, and an insertion rod (601) is detachably connected between the two mounting bars (600) and the bottom of the movable rack (102).

6. A tunnel support device for coal mining and excavation according to claim 5, characterized in that: The inner side walls of the top opening (202) are respectively provided with clamping grooves (201), and the outer side walls of the movable rack (102) are respectively fixed with clamping strips (200) on opposite sides, and the clamping strips (200) are movably clamped in the clamping grooves (201).

7. A tunnel support device for coal mining and excavation according to claim 6, characterized in that: The top surface of the inner groove (400) is provided with a slot (401), a pull bar (405) is movably engaged inside the slot (401), and the bottom surface of the pull bar (405) is fixed to the top surface of the push plate (402).

8. A tunnel support device for coal mining and excavation according to claim 7, characterized in that: The first support plate (300) and the second support plate (301) are rotatably connected by a bolt (302) at one end close to each other.

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