Supporting device for coal mining

Abstract

The utility model relates to the technical field of mine supporting equipment, and discloses a supporting device for coal mining, which comprises a supporting frame at the top, a group of hinged rods which are arranged in a crossed manner are arranged on two sides of the bottom of the supporting frame along the width direction of the supporting frame, and the bottom of each group of hinged rods is connected with a supporting beam. A driving piece connected with the hinge rod is arranged on the supporting beam; supporting sleeves are arranged on the inner sides of the supporting beams on the two sides of each set of hinge rods, and supporting rods connected with the supporting frame are arranged in the supporting sleeves in a sliding mode; a positioning piece is arranged between the supporting sleeve and the supporting rod; the utility model can be quickly built and dismantled, and is simple and quick to operate, simple in structure and strong in stability.

Description

Technical Field

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

[0002] During the coal mine excavation process, in order to ensure the construction safety, temporary support devices are usually set in the mine. After corresponding reinforcement construction in this area, the support devices can be removed and relocated to meet the needs of subsequent construction. When the existing temporary support devices are in use, the operation is relatively cumbersome, and they cannot be quickly erected and removed, which affects the work efficiency. Moreover, when erected, there is too much manual intervention, and there are many influencing factors on the structural strength of the support devices, and the stability is difficult to be quantitatively guaranteed. Therefore, there is an urgent need for a support device for coal mine excavation that is easy to use and has strong stability. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a support device for coal mine excavation, which can be quickly erected and removed, has simple and convenient operation, a simple structure, and strong stability.

[0004] The utility model adopts the following technical solutions:

[0005] A support device for coal mine excavation includes a support frame at the top. On both sides of the bottom of the support frame along its width direction, a group of articulated rods arranged in a cross manner are provided. The bottom of each group of articulated rods is connected with a support beam, and a driving member connected with the articulated rods is arranged on the support beam. On the inner sides of the support beams on both sides of each group of articulated rods, support sleeves are provided. A support rod connected with the support frame is slidably arranged in the support sleeves. A positioning member is arranged between the support sleeves and the support rods.

[0006] Preferably, the support beam is a U-shaped structure with an upward opening, and the driving member is arranged inside it.

[0007] Preferably, one side of the top end of each group of articulated rods is hinged with the support frame, and the bottom end is slidably connected with the bottom support beam. The other side of the top end is slidably connected with the support frame, and the bottom end is hinged with the support beam. The driving member is connected with the articulated rods slidably arranged on the support beam.

[0008] Preferably, a slide rail is arranged at the bottom of the support frame. Guide wheels slidably connected with the slide rail are arranged on the articulated rods slidably connected with the support frame. Guide wheels slidably connected with the support beam are arranged on the articulated rods slidably connected with the support beam.

[0009] Preferably, each of the positioning members includes a positioning tooth plate elastically arranged on the side wall of the support sleeve, and a positioning tooth groove is obliquely arranged downward on the side wall of the support rod; when the support rod moves upward, the positioning tooth plate gradually moves along the slope of the positioning tooth groove, and when the support rod is stationary, the positioning tooth plate meshes with the positioning tooth groove to prevent the support rod from moving downward.

[0010] Preferably, an adjusting piece connected to the positioning tooth plate is arranged on the outer wall of the support sleeve, and the adjusting piece is hinged to the telescopic end of the oil cylinder arranged on the outer wall of the support sleeve.

[0011] Preferably, the bottom of the support sleeve is open, and a moving wheel is arranged at the bottom of the support rod; when the hinged rod is retracted to the initial state, the support rod pushes the moving wheel out from the bottom of the support sleeve, and the bottom surface of the moving wheel is lower than the bottom surface of the support beam.

[0012] Preferably, a plurality of arc-shaped support top beams are arranged at intervals on the top of the support frame, and a protective net is arranged in the support frame below the lower part of the support top beam.

[0013] Preferably, a support frame is arranged at the bottom of the protective net, and diversion plates are obliquely arranged at both ends of the protective net.

[0014] Preferably, a moving groove is opened along the length direction of the support frame, two connecting plates are arranged in the moving groove, and each connecting plate is connected with a cleaning plate, and the cleaning plate is located in the support frame; a circular transmission belt is arranged on the support frame, the two connecting plates are respectively arranged on the inner and outer sides of the transmission belt, and one of the connecting plates is connected with the hinged rod slidably connected with the support frame.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: through the drive of the driving member, each group of hinged rods arranged in a crosswise manner on both sides can be synchronously lifted, so as to push the support frame to rise, and temporarily support the top of the mine shaft, meeting the temporary construction requirements; the operation is simple and fast, and without too much manual intervention, the standardization and stability of the support are ensured; the setting of the support sleeve, the support rod and the positioning member can provide further support for the support frame, avoiding the acting force being completely applied to the driving member and the hinged rod, further improving the support strength of the whole support device and the stability of the support device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view of the embodiment of the present application;

[0017] Figure 2 is Figure 1 the enlarged view of A in

[0018] Figure 3 This is a schematic structural diagram of the support frame implemented in this application. Detailed implementation manners

[0019] The following will clearly and completely describe the present utility model in conjunction with the accompanying drawings and embodiments:

[0020] As Figures 1 to 3 shown, a support device for coal mine excavation described in the present utility model includes a support frame 1 at the top. The support frame 1 is a steel frame structure to ensure its structural strength. On both sides of the bottom of the support frame 1 along its width direction, a group of hinged rods 2 arranged in a cross manner are provided. Each group of hinged rods 2 is connected to a support beam 3 at the bottom. A driving member 4 connected to the hinged rods 2 is provided on the support beam 3. The driving member 4 can adopt a lead screw slider or a hydraulic cylinder. In combination with the actual construction scenario and the stress intensity, this embodiment preferably adopts a hydraulic cylinder to drive the hinged rods 2 to realize the lifting operation of the support frame 1. Among them, the support beam 3 is a U-shaped structure with an upward opening, and the driving member 4 is arranged inside it. One side of the top end of the hinged rod 2 is hinged to the support frame 1, and the bottom end of this side is slidably connected to the bottom support beam 3. The other side of the top end of the hinged rod 2 is slidably connected to the support frame 1, and the bottom end of this side is hinged to the support beam 3. The driving member 4 is connected to one side of the hinged rod 2 slidably arranged on the support beam 3 and is horizontally placed in the groove inside the support beam 3. During operation, driving the connected hinged rod 2 to move along the length direction of the support beam 3 can realize the lifting operation of the support frame 1. A synchronizer is arranged between the driving members 4 on both sides to ensure the stable rising of the support frame 1.

[0021] Support sleeves 5 are arranged on the inner sides of the support beams 3 on both sides of each group of hinged rods 2. A support rod 6 connected to the support frame 1 is slidably arranged inside the support sleeve 5. A positioning member is arranged between the support sleeve 5 and the support rod 6. The positioning member can position the support rod 6 under the working state to ensure its stability, and further realize the stable support of the support frame 1, sharing the acting force on the hinged rods 2 and the driving member 4.

[0022] Furthermore, the positioning member includes a positioning tooth plate 7, which is elastically arranged on the side wall of the support sleeve 5 through a torsion spring, and a positioning tooth groove 8 is arranged on the side wall of the support rod 6 in an inclined downward direction; when the support rod 6 moves upward, the positioning tooth plate 7 gradually moves along the slope of the positioning tooth groove 8, and will not hinder the upward movement of the support rod 6. When the support rod 6 is stationary, the positioning tooth plate 7 is engaged with the positioning tooth groove 8 to prevent the support rod 6 from moving downward, thereby realizing the support of the support rod 6 to the support frame 1. In addition, an adjustment plate 9 is arranged on the outer wall of the support sleeve 5, and the adjustment plate 9 is connected to the hinge shaft extending from the positioning tooth plate 7, and the adjustment plate 9 is hinged to the telescopic end of the oil cylinder 10 arranged on the outer wall of the support sleeve 5; when the support device is stored, the telescopic end of the oil cylinder 10 extends upward to push the adjustment plate 9 to move, and the adjustment plate 9 drives the positioning tooth plate 7 to move in the direction away from the support rod 6 along the hinge axis, so as to realize its separation from the positioning tooth groove 8, release the restriction on the support rod 6, and realize the smooth storage of the support rod 6. The multiple oil cylinders 10 are connected with synchronizers to achieve synchronization of work.

[0023] In addition, the bottom of the support sleeve 5 is preferably open, and a moving wheel 11 is provided at the bottom of the support rod 6; when the hinged rod 2 is stored to the initial state, the support rod 6 pushes the moving wheel 11 out from the bottom of the support sleeve 5, and the bottom surface of the moving wheel 11 is lower than the bottom surface of the support beam 3, so that the moving wheel 11 contacts the bottom support surface, which can realize the pulling or pushing of the support device and improve the convenience of moving the support device.

[0024] Furthermore, a slide rail 12 is provided at the bottom of the support frame 1, and a guide wheel 13 slidably connected to the slide rail 12 is provided on one side of the articulated rod 2 slidably connected to the support frame 1; a guide wheel 13 slidably connected to the support beam 3 is provided on one side of the articulated rod 2 slidably connected to the support beam 3; so as to reduce the friction between the articulated rod 2 and the slide rail 12 and the support beam 3 when moving, thereby realizing stable adjustment of the articulated rod 2.

[0025] Furthermore, a plurality of arc-shaped support beams 14 are arranged at intervals on the top of the support frame 1 to enhance its structural strength. The arrangement of the arc-shaped support beams 14 can achieve better pressure transmission to both sides of the support frame 1. A protective net 15 is arranged in the support frame 1 below the support beams 14 to receive the soil blocks falling from the top of the mine to prevent the construction workers passing below from being hit. A support frame is arranged at the bottom of the protective net 15 to enhance its bearing capacity. Guide plates 16 are arranged at both ends of the protective net 15 to facilitate the subsequent cleaning of the soil blocks and other dirt received on the support net.

[0026] Further, a moving groove 17 is formed in the support frame 1 along its length direction. Two connecting plates 18 are slidably arranged in the moving groove 17. Each connecting plate 18 is connected with a cleaning plate 19. The cleaning plate 19 is located inside the support frame and is used to clean the dirt on the protective net 15. Pulleys 20 are rotatably arranged at both ends of the support frame 1. An annular transmission belt 21 is arranged on the two pulleys 20. The two connecting plates 18 are respectively arranged on the inner and outer sides of the transmission belt 21. One of the connecting plates 18 is movably connected with the axle of the guide wheel 13 on the articulated rod 2 slidably connected with the support frame 1. When the support device is stored, one side of the articulated rod 2 slidably connected with the support frame 1 will move towards the end of the support frame 1. At this time, the articulated rod 2 will drive the connecting rod to move outward synchronously. The cleaning scraper will drive the dirt on the protective net 15 to the diversion plate 16 and drop down under the drive of the connecting rod. As the support frame 1 is reset, the cleaning plate 19 will move to the position of the diversion plate 16. At the same time, the other connecting plate 18 will move in the opposite direction under the drive of the transmission belt 21, and push the dirt on the protective net 15 down from the other diversion plate 16. As the support frame 1 is reset, the connecting plate 18 and the cleaning plate 19 will move to the diversion plate 16 and reset.

[0027] When the utility model is in use, after moving the support device to a specified position, only the control switch of the driving member 4 needs to be turned on. The driving member 4 pushes the articulated rod 2 slidably connected with the support beam 3 to move, so as to drive the support frame 1 to rise. At the same time, the support rod 6 rises synchronously along the support sleeve 5, and the stable support of the support frame 1 is realized under the action of the positioning member. When the support device needs to be disassembled and stored, first control the oil cylinder arranged on the support sleeve 5 to move upward, drive the positioning tooth plate 7 in the positioning member to disengage from the engagement with the positioning tooth groove 8, and then control the driving member 4 to reset. During the reset process, as the articulated rod 2 slidably connected with the support frame 1 moves, it will drive the connecting rod and the corresponding cleaning plate 19 to move, so as to clean the dirt falling on the protective net 15. The operation is simple, the structure is simple, and the practicability is strong.

Claims

1. A support device for coal mine excavation, characterized in that: It includes a support frame at the top. On both sides of the bottom of the support frame along its width direction, a group of hinged rods arranged crosswise are provided. At the bottom of each group of hinged rods, a support beam is connected. A driving member connected to the hinged rods is arranged on the support beam. On the inner sides of the support beams on both sides of each group of hinged rods, support sleeves are provided. A support rod connected to the support frame is slidably arranged in the support sleeves. A positioning member is arranged between the support sleeves and the support rods.

2. The supporting device for coal mine excavation according to claim 1, characterized in that: The support beam is a U-shaped structure with an upward opening, and the driving member is arranged therein.

3. The support device for coal mine mining according to claim 2, characterized in that: One side of the top end of each group of hinged rods is hinged to the support frame, and the bottom end is slidably connected to the bottom support beam. The other side of the top end is slidably connected to the support frame, and the bottom end is hinged to the support beam. The driving member is connected to the hinged rods slidably arranged on the support beam.

4. The supporting device for coal mine excavation according to claim 3, wherein: Sliding rails are arranged at the bottom of the support frame. Guide wheels slidably connected to the sliding rails are arranged on the hinged rods slidably connected to the support frame. Guide wheels slidably connected to the support beam are arranged on the hinged rods slidably connected to the support beam.

5. The supporting device for coal mine excavation according to claim 1, characterized in that: Each positioning member includes a positioning toothed plate elastically arranged on the side wall of the support sleeve. A positioning tooth groove is obliquely arranged downward on the side wall of the support rod. When the support rod moves upward, the positioning toothed plate gradually moves along the slope of the positioning tooth groove. When the support rod is stationary, the positioning toothed plate meshes with the positioning tooth groove to prevent the support rod from moving downward.

6. The supporting device for coal mine mining according to claim 5, characterized in that: An adjusting piece connected to the positioning toothed plate is arranged on the outer wall of the support sleeve. The adjusting piece is hinged to the telescopic end of an oil cylinder arranged on the outer wall of the support sleeve.

7. The supporting device for coal mine excavation according to claim 1, wherein: The bottom of the support sleeve is open. A moving wheel is arranged at the bottom of the support rod. When the hinged rods are retracted to the initial state, the support rod pushes the moving wheel out from the bottom of the support sleeve, and the bottom surface of the moving wheel is lower than the bottom surface of the support beam.

8. The supporting device for coal mine excavation according to claim 3, characterized in that: A plurality of arc-shaped support top beams are arranged at intervals at the top of the support frame. A protective net is arranged inside the support frame below the support top beams.

9. The supporting device for coal mine mining according to claim 8, characterized in that: A support frame is arranged at the bottom of the protective net. Flow guide plates are obliquely arranged at both ends of the protective net.

10. The support device for coal mine excavation according to claim 9, characterized in that: A moving groove is opened along the length direction of the support frame. Two connecting plates are arranged in the moving groove. Each connecting plate is connected with a cleaning plate, and the cleaning plate is located inside the support frame. An annular conveyor belt is arranged on the support frame. The two connecting plates are respectively arranged on the inner and outer sides of the conveyor belt. One of the connecting plates is connected with the hinged rod slidably connected to the support frame.

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