A supporting device for coal mine roadway construction

Abstract

The utility model relates to the roadway support field, concretely is a kind of supporting device for coal mine roadway construction, include: roof;Supporting plate, the supporting plate symmetry is set in the both sides of roof;Reel assembly, the reel assembly is set in the inside of roof, is connected with both sides supporting plate;Protective component, the protective component is set between both sides supporting plate, is connected with the bottom end outer wall of roof, for the shielding of cooperation roof to falling rock;Lifting assembly, the lifting assembly is connected with supporting plate, for the lifting of cooperation supporting plate to roof, by setting protective component, cooperation reel assembly and lifting assembly, so that equipment not only can be applicable to different height's tunnel, and can effectively protect the inner wall of both sides of tunnel, also can realize the synchronous reeling of protective component in the process of reeling, to cooperate with the shielding of roof to falling rock, ensure the safety of staff walking in tunnel.

Description

Technical Field

[0001] This utility model relates to the field of roadway support, specifically a support device for coal mine roadway construction. Background Technology

[0002] my country's coal mines are primarily underground, requiring the excavation of numerous tunnels. These tunnels are passageways excavated during underground mining for purposes such as hoisting, transportation, ventilation, and power supply. During tunnel operations, temporary supports are necessary. The fundamental purpose of tunnel support is to mitigate and reduce the movement of the surrounding rock, preventing excessive reduction in the tunnel cross-section, and preventing the collapse of loosened or damaged surrounding rock. The support structure maintains the usable clearance of the tunnel cross-section, prevents further deterioration of the rock quality, withstands various possible loads, maintains the safety of the support, provides sufficient resistance to the surrounding rock, and maintains the stability of the surrounding rock.

[0003] Existing support devices often only support the top of the roadway, lacking protection for the sides. Moreover, they cannot shield the roadway from falling debris during the support process, resulting in poor safety. Therefore, in view of the above situation, there is an urgent need to develop a support device for coal mine roadway construction to overcome the shortcomings in current practical applications. Utility Model Content

[0004] The purpose of this utility model is to provide a support device for coal mine roadway construction to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A support device for coal mine roadway construction includes: a roof plate; support plates symmetrically arranged on both sides of the roof plate; a retraction assembly disposed on the inner side of the roof plate and connected to the two support plates; a protective assembly disposed between the two support plates and connected to the outer wall of the bottom end of the roof plate, used to cooperate with the roof plate to block falling rocks; and a lifting assembly connected to the support plates, used to cooperate with the support plates to lift the roof plate.

[0007] As a further embodiment of this utility model: the retractable assembly includes: a motor, a threaded rod, a movable block, and a transmission rod. The motor is fixedly installed on the inner side of the top plate, and the motor output end is fixedly connected to the threaded rod. Movable blocks are threadedly connected to the outer sides of both ends of the threaded rod. Transmission rods are symmetrically arranged between the movable blocks and the two side support plates. One end of the transmission rod is rotatably connected to the support plate, and the other end is rotatably connected to the movable block.

[0008] As a further embodiment of this utility model: the lifting assembly includes: a base plate, a support block, an electric push rod, a control plate, a transmission cavity, a control tube, a piston, an adjusting tube, a lifting plate, and a sensing piston. The base plate is disposed on the outer side of the bottom end of the support plate, and the base plate is fixedly connected to the lifting plate which is slidably disposed on the inner side of the support plate. A control groove is disposed on the inner side of the lifting plate, and an adjusting tube is disposed on the inner side of the control groove. The adjusting tube is connected to the transmission cavity disposed on the inner side of the support plate and is fixedly connected to the support plate. A sensing piston which is slidably connected to the control groove is fixedly disposed on the outer side of the adjusting tube. The transmission cavity is also connected to the control tube which is fixedly disposed on the support plate. A piston is slidably disposed on the inner side of the control tube, and the other end of the piston is fixedly connected to the control plate. The control plate and the support block which is fixedly disposed on the support plate are connected by an electric push rod.

[0009] As a further embodiment of this utility model: the protective assembly includes: a connecting frame, a rotating rod, a movable plate, a protective plate, a buffer seat, a movable seat, a buffer disc, a buffer rod, a mounting frame, and a support rod. The buffer seat is fixedly installed on the outer side of the bottom end of the top plate. A movable seat is slidably installed on the inner side of the buffer seat. Several buffer grooves are provided on the inner side of the movable seat. Damping fluid is provided on the inner side of the buffer grooves. A buffer disc is slidably installed on the inner side of the buffer grooves. A buffer rod is fixedly installed on the buffer disc. The other end of the buffer rod is fixedly connected to the buffer seat. A buffer spring is fixedly installed between the buffer disc and the buffer groove. A mounting frame is fixedly installed on the end of the movable seat away from the top plate. A support rod is fixedly installed on the mounting frame. The support rod is rotatably connected to the protective plate. A movable plate is slidably installed on the inner side of the other end of the protective plate. A rotating rod is fixedly installed on the outer sides of both ends of the movable plate. The rotating rod is rotatably connected to the connecting frame fixedly installed on the support plate.

[0010] As a further embodiment of this utility model, it also includes: a slot and a plug, wherein the plug is fixedly disposed on the outer side of one end of the support plate, and a slot adapted to the plug is disposed on the other side wall of the support plate, the slot wall is provided with a slot, a plug is slidably disposed on the plug and engages with the slot, and a spring is fixedly disposed between the plug and the plug to realize the connection of adjacent support devices.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The retraction and extension components work in conjunction with the top plate to unfold the support plates on both sides. The support plates on both sides abut against the inner walls of the tunnel. The bottom of the lifting component contacts the ground and lifts the support plates. The support plates then drive the top plate to abut against the inner wall of the tunnel top. The protective components can extend synchronously with the unfolding of the support plates, thereby effectively blocking falling rocks inside the tunnel. By setting up the protective components, in conjunction with the retraction and extension components and the lifting component, this application enables the equipment to be applicable to tunnels of different heights, effectively protect the inner walls of both sides of the tunnel, and achieve synchronous retraction and extension of the protective components during the retraction and extension process. This, together with the top plate, completes the blocking of falling rocks, ensuring the safety of workers walking inside the tunnel. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of a support device used in coal mine roadway construction.

[0014] Figure 2 This is a cross-sectional view of a support device used in coal mine roadway construction.

[0015] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle.

[0016] Figure 4 This is a schematic diagram of the internal structure of the roof plate in a support device used in coal mine roadway construction.

[0017] Figure 5 This is a schematic diagram of the support plate in a support device used in coal mine roadway construction.

[0018] In the diagram: 1. Top plate; 2. Support plate; 3. Slot; 4. Base plate; 5. Connecting frame; 6. Rotating rod; 7. Movable plate; 8. Protective plate; 9. Buffer seat; 10. Movable seat; 11. Buffer plate; 12. Buffer rod; 13. Mounting frame; 14. Support rod; 15. Support block; 16. Electric push rod; 17. Control panel; 18. Transmission chamber; 19. Control tube; 20. Piston; 21. Adjusting tube; 22. Lifting plate; 23. Induction piston; 24. Motor; 25. Threaded rod; 26. Movable block; 27. Transmission rod; 28. Insert block. Detailed Implementation

[0019] The technical solution of this application will be further described in detail below with reference to specific embodiments.

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] Please see Figure 1 and Figure 2 In one embodiment of this utility model, a support device for coal mine roadway construction includes: a roof plate 1; support plates 2, the support plates 2 being symmetrically arranged on both sides of the roof plate 1; a retraction assembly, the retraction assembly being arranged on the inner side of the roof plate 1 and connected to the support plates 2 on both sides; a protective assembly, the protective assembly being arranged between the support plates 2 on both sides and connected to the outer wall of the bottom end of the roof plate 1, used to cooperate with the roof plate 1 to block falling rocks; and a lifting assembly, the lifting assembly being connected to the support plates 2, used to cooperate with the support plates 2 to lift the roof plate 1.

[0022] In this embodiment, during operation, the retraction and extension components work with the top plate 1 to unfold the two side support plates 2. The two side support plates 2 abut against the inner walls of the tunnel on both sides respectively. The bottom end of the lifting component contacts the ground and lifts the support plates 2. The support plates 2 drive the top plate 1 to abut against the inner wall of the tunnel top. The protective component can extend synchronously with the unfolding of the support plates 2, thereby effectively blocking falling rocks in the tunnel. By setting up the protective component, in conjunction with the retraction and extension components and the lifting component, this application enables the equipment to be applicable to tunnels of different heights, effectively protect the inner walls of the tunnel on both sides, and achieve synchronous retraction and extension of the protective component during the retraction and extension process, thereby working with the top plate 1 to block falling rocks and ensuring the safety of workers walking in the tunnel.

[0023] In one embodiment of this utility model, please refer to Figure 2 and Figure 4 The retractable assembly includes a motor 24, a threaded rod 25, a movable block 26, and a transmission rod 27. The motor 24 is fixedly installed inside the top plate 1, and the output end of the motor 24 is fixedly connected to the threaded rod 25. Movable blocks 26 are threadedly connected to both outer ends of the threaded rod 25. Transmission rods 27 are symmetrically arranged between the movable blocks 26 and the two side support plates 2. One end of the transmission rod 27 is rotatably connected to the support plate 2, and the other end is rotatably connected to the movable block 26.

[0024] In this embodiment, the threads on the outer sides of the two ends of the threaded rod 25 are in opposite directions. The motor 24 drives the threaded rod 25 to rotate, and the threaded rod 25 drives the movable blocks 26 on both sides to move in opposite directions. The movable blocks 26 realize the retraction and extension of the two side support plates 2 through the transmission rod 27, and adjust the distance between the support plates 2 and the top plate 1. In addition, a positioning plate is fixedly installed on one side of the support plate 2, and a sliding plate is fixedly installed on the other side of the support plate 2. The sliding plate is slidably connected to the positioning plate. By setting the retraction and extension assembly, it can cooperate with the top plate 1 to complete the retraction and extension of the two side support plates 2, so that the two side support plates 2 can fully contact the inner walls of the tunnel on both sides respectively, and complete the protection of the inner wall of the mine tunnel.

[0025] In one embodiment of this utility model, please refer to Figure 2 , Figure 3 and Figure 5 The lifting assembly includes: a base plate 4, a support block 15, an electric push rod 16, a control plate 17, a transmission cavity 18, a control pipe 19, a piston 20, an adjusting pipe 21, a lifting plate 22, and a sensing piston 23. The base plate 4 is located on the outer side of the bottom end of the support plate 2. The base plate 4 is fixedly connected to the lifting plate 22, which is slidably located on the inner side of the support plate 2. A control groove is provided on the inner side of the lifting plate 22. An adjusting pipe 21 is provided on the inner side of the control groove. The adjusting pipe 21 is connected to the transmission cavity 18, which is located on the inner side of the support plate 2. The adjusting pipe 21 is fixedly connected to the support plate 2. A sensing piston 23, which is slidably connected to the control groove, is fixedly located on the outer side of the adjusting pipe 21. The transmission cavity 18 is also connected to the control pipe 19, which is fixedly located on the support plate 2. A piston 20 is slidably located on the inner side of the control pipe 19. The other end of the piston 20 is fixedly connected to the control plate 17. The control plate 17 is connected to the support block 15, which is fixedly located on the support plate 2, through the electric push rod 16.

[0026] In this embodiment, the piston component 20 includes a second piston slidably disposed inside the control tube 19 and a second push rod fixedly connected to the second piston. The other end of the second push rod is fixedly connected to the control plate 17. The electric push rod 16, in conjunction with the support block 15, drives the control plate 17 to move downward. The control plate 17 drives each second piston to move synchronously inside the control tube 19, driving the air inside the transmission chamber 18 to enter the control slot along the regulating pipe 21. In conjunction with the sensing piston 23, the lifting plate 22 can be extended and retracted. The lifting plate 22 drives the bottom plate 4 to move. The bottom plate 4 contacts the ground and lifts the support plate 2, so that the top plate 1 abuts against the inner wall of the top of the mine tunnel, thus completing the support of the mine tunnel. By setting the lifting component, the support height can be adjusted. In conjunction with the unfolded support plates 2 on both sides, the equipment can support the upper inner wall and the inner walls on both sides of the underground roadway respectively, providing more comprehensive support for the roadway and better support effect.

[0027] In one embodiment of this utility model, please refer to Figure 2 and Figure 3The protective assembly includes: a connecting frame 5, a rotating rod 6, a movable plate 7, a protective plate 8, a buffer seat 9, a movable seat 10, a buffer disc 11, a buffer rod 12, a mounting frame 13, and a support rod 14. The buffer seat 9 is fixedly installed on the outer side of the bottom end of the top plate 1. The movable seat 10 is slidably installed on the inner side of the buffer seat 9. Several buffer grooves are provided on the inner side of the movable seat 10. Damping fluid is provided on the inner side of the buffer grooves. The buffer disc 11 is slidably installed on the inner side of the buffer grooves. The buffer rod 12 is fixedly installed on the buffer disc 11. The other end of the buffer rod 12 is fixedly connected to the buffer seat 9. A buffer spring is fixedly installed between the buffer disc 11 and the buffer grooves. The mounting frame 13 is fixedly installed on the movable seat 10 away from the top plate 1. The support rod 14 is fixedly installed on the mounting frame 13. The support rod 14 is rotatably connected to the protective plate 8. The movable plate 7 is slidably installed on the inner side of the other end of the protective plate 8. The rotating rod 6 is fixedly installed on the outer side of both ends of the movable plate 7. The rotating rod 6 is rotatably connected to the connecting frame 5 fixedly installed on the support plate 2.

[0028] In this embodiment, when the support plate 2 unfolds to both sides, the support plate 2 will drive the movable plate 7 to move synchronously through the rotating rod 6. The movable plate 7 slides with the protective plate 8. The movable plate 7, together with the protective plate 8, can block the falling gravel. When the gravel falls, it will come into contact with the movable plate 7 and the protective plate 8, forming an impact. The damping fluid and buffer spring set inside the buffer groove, together with the buffer plate 11, can absorb the impact force, improving the safety and stability of the equipment during use.

[0029] In one embodiment of this utility model, please refer to Figure 1 and Figure 4 It also includes: slot 3 and plug 28. The plug 28 is fixedly installed on the outer side of one end of the support plate 2. The other side of the support plate 2 is provided with a slot 3 that is compatible with the plug 28. The slot 3 is provided with a groove on its groove wall. The plug 28 is slidably provided with a locking block that engages with the groove. A spring is fixedly provided between the locking block and the plug 28 to realize the connection of adjacent support devices.

[0030] In this embodiment, during installation, the insert block 28 on the support plate 2 is inserted into the slot 3 on the adjacent support plate 2, and the locking block on the insert block 28 is engaged with the locking groove on the inner side of the slot 3, so as to realize the installation and connection of adjacent support devices and facilitate the disassembly and assembly of support devices.

[0031] This support device for coal mine roadway construction uses a motor 24 to drive a threaded rod 25 to rotate. The threaded rod 25 drives two movable blocks 26 on both sides to move in opposite directions. The movable blocks 26, through a transmission rod 27, adjust the distance between the support plates 2 and the top plate 1. An electric push rod 16, in conjunction with the support blocks 15, drives a control plate 17 to move downwards. The control plate 17 drives each second piston to move synchronously inside the control tube 19, driving the air inside the transmission chamber 18 to enter the control slot along the regulating tube 21. In conjunction with the sensing piston 23, this enables the lifting plate 22 to move. The lifting plate 22 drives the bottom plate 4 to move, and the bottom plate 4 contacts the ground, lifting the support plate 2, thus lifting the top plate 1. It abuts against the inner wall at the top of the mine tunnel to support the tunnel. When the support plate 2 unfolds to both sides, the support plate 2 will drive the movable plate 7 to move synchronously through the rotating rod 6. The movable plate 7 slides with the protective plate 8. The movable plate 7, together with the protective plate 8, can block falling gravel. When the gravel falls, it will come into contact with the movable plate 7 and the protective plate 8, forming an impact. The damping fluid and buffer spring set inside the buffer groove, together with the buffer plate 11, can absorb the impact force. When the device is installed, the insert block 28 on the support plate 2 is inserted into the slot 3 on the adjacent support plate 2. The locking block set on the insert block 28 is locked into the locking groove set inside the slot 3, realizing the installation and connection of adjacent support devices, which facilitates the disassembly and assembly of the support devices.

[0032] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A support device for coal mine roadway construction, characterized in that, include: roof; Support plates are symmetrically arranged on both sides of the top plate; A retractable assembly is disposed on the inner side of the top plate and connected to the two side support plates; The protective component is disposed between the two side support plates and connected to the outer wall of the bottom end of the top plate, and is used to work with the top plate to block falling rocks. A lifting assembly, which is connected to a support plate, is used to cooperate with the support plate to lift the top plate.

2. The support device for coal mine roadway construction according to claim 1, characterized in that, The retractable assembly includes a motor, a threaded rod, a movable block, and a transmission rod. The motor is fixedly installed inside the top plate, and the motor output end is fixedly connected to the threaded rod. Movable blocks are threadedly connected to both outer ends of the threaded rod. Transmission rods are symmetrically arranged between the movable blocks and the support plates on both sides. One end of the transmission rod is rotatably connected to the support plate, and the other end is rotatably connected to the movable block.

3. The support device for coal mine roadway construction according to claim 2, characterized in that, The lifting assembly includes: a base plate, a support block, an electric push rod, a control plate, a transmission cavity, a control tube, a piston, an adjusting tube, a lifting plate, and a sensing piston. The base plate is located on the outer side of the bottom end of the support plate. The base plate is fixedly connected to the lifting plate, which is slidably located on the inner side of the support plate. A control groove is provided on the inner side of the lifting plate, and an adjusting tube is provided on the inner side of the control groove. The adjusting tube is connected to the transmission cavity located on the inner side of the support plate and is fixedly connected to the support plate. A sensing piston, which is slidably connected to the control groove, is fixedly located on the outer side of the adjusting tube. The transmission cavity is also connected to the control tube, which is fixedly located on the support plate. A piston is slidably located on the inner side of the control tube, and the other end of the piston is fixedly connected to the control plate. The control plate and the support block, which is fixedly located on the support plate, are connected by an electric push rod.

4. The support device for coal mine roadway construction according to claim 3, characterized in that, The protective assembly includes: a connecting frame, a rotating rod, a movable plate, a protective plate, a buffer seat, a movable seat, a buffer disc, a buffer rod, a mounting frame, and a support rod. The buffer seat is fixedly installed on the outer side of the bottom end of the top plate. A movable seat is slidably installed on the inner side of the buffer seat. Several buffer grooves are provided on the inner side of the movable seat. Damping fluid is provided on the inner side of the buffer grooves. A buffer disc is slidably installed on the inner side of the buffer grooves. A buffer rod is fixedly installed on the buffer disc. The other end of the buffer rod is fixedly connected to the buffer seat. A buffer spring is fixedly installed between the buffer disc and the buffer groove. A mounting frame is fixedly installed on the end of the movable seat away from the top plate. A support rod is fixedly installed on the mounting frame. The support rod is rotatably connected to the protective plate. A movable plate is slidably installed on the inner side of the other end of the protective plate. A rotating rod is fixedly installed on the outer sides of both ends of the movable plate. The rotating rod is rotatably connected to the connecting frame fixedly installed on the support plate.

5. The support device for coal mine roadway construction according to claim 4, characterized in that, Also includes: The slot and the plug are provided. The plug is fixedly installed on the outer side of one end of the support plate. The other side of the support plate is provided with a slot that matches the plug. The slot wall is provided with a slot. The plug is slidably provided with a locking block that engages with the slot. A spring is fixedly provided between the locking block and the plug to realize the connection of adjacent support devices.

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