Mining face supporting structure

Abstract

The mining face supporting structure comprises a base, a hydraulic cylinder, a top plate, a supporting shaft and a limiting rod, the hydraulic cylinder is fixedly installed in the center of the top end of the base, the supporting shaft is connected to the upper portion of the side wall of the hydraulic cylinder in a penetrating mode, the two ends of the supporting shaft penetrate through fixing plates, and one end of the supporting shaft is fixedly connected with a fixing switch. The top end of the fixing plate is fixedly connected with the two sides of the bottom of a top plate, a groove is formed in the top end of the top plate, a limiting groove is formed in the bottom of the groove, and limiting rods are connected to the inner side walls of the limiting groove in an up-and-down sliding mode and fixedly connected with the two sides of the bottom of a supporting block. Two sides of the bottom of the sponge pad are detachably connected with two sides of the top end of the top plate; the device adapts to different mining working faces by freely adjusting the angle of the top plate, so that the stress is more uniform, and the safety is improved.

Description

Technical Field

[0001] The present application relates to the technical field of support structures, and in particular to a support structure for a mining working face. Background Art

[0002] A mining face refers to a work site used for direct mining of mineral resources in mining operations. In a mining face, there are usually a large amount of ore and rock that need to be processed, so a series of safety measures need to be taken to ensure the safety of workers and the stability of the mine. In view of the characteristics of the mining face, a series of technical measures need to be taken to ensure safety, such as setting up support devices on the mining face to prevent accidents such as roof collapse and spalling. The existing support structure cannot adapt well to the support conditions of the mining face, and the protection effect is poor.

[0003] Application No. 202321703487.0 discloses a mining working face support structure, including a support rod, a telescopic rod, a support plate, a connecting rod, a driving block, a rotating shaft, a fixed rod and a positioning block, etc. The support rod is provided to facilitate supporting the entire device. The first telescopic rod is provided to facilitate height adjustment. The support plate is provided to play a supporting role. The roller is provided to facilitate moving the entire device, which is conducive to enhancing the convenience of the device. The bottom block can stabilize the support rod. The first combining block can stabilize the connecting rod. The driving block can facilitate the rotation of the rotating shaft. The second telescopic rod is provided to facilitate width adjustment. The fixed rod is provided to facilitate movement of the second telescopic rod. The fixed plate is provided to stabilize the roller. At the same time, the screw is provided to facilitate disassembly and reduce construction costs. When the roller moves, the moving block can be fixed above the moving block to facilitate movement of the roller. The rotating disk is provided to facilitate steering of the roller. The second combining seat is provided to facilitate stabilizing the roller.

[0004] However, in use, there are the following defects:

[0005] Since the working surface that needs to be supported in the mining pit is rugged and has different inclination angles, during the process of the support plate supporting the working surface, the protruding or recessed working surface contacts the support plate, which may cause serious uneven force, and even the support plate may be deformed and damaged due to the left and right pressure, affecting the safety of the actual use of the device. Utility Model Content

[0006] The purpose of the present application is to provide a mining working face support structure, which solves the problem raised in the background technology that the working face to be supported in the mining pit is rugged and has different inclination angles. During the process of the support plate supporting the working face, the protruding or recessed working face contacts the support plate, which may cause serious uneven force, and even the support plate may be deformed and damaged due to the left and right pressure, thereby affecting the safety of the actual use of the device.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a mining working face support structure, comprising a base, a hydraulic cylinder, a top plate, a support shaft and a limit rod, a hydraulic cylinder is fixedly installed at the top center of the base, a support shaft is connected through the top of the side wall of the hydraulic cylinder, both ends of the support shaft pass through the fixed plate, and one end of the support shaft is fixedly connected to a fixed switch, the top of the fixed plate is fixedly connected to the bottom two sides of the top plate, the top of the top plate is provided with a groove, the bottom of the groove is provided with a limit groove, the limit rod is connected by sliding up and down on the inner side wall of the limit groove, the top of the limit rod is fixedly connected to the bottom two sides of the support block, the top of the support block is contacted and connected to the bottom of the sponge pad, and the bottom two sides of the sponge pad are detachably connected to the top two sides of the top plate.

[0008] In this technical solution, the height of the top plate is adjusted by a hydraulic cylinder, and the base is fixed to the ground through a fixing hole using a fixing rivet, thereby increasing stability. The fixing plate, support shaft, fixing switch and top plate can adapt to different working surface inclinations. The inclination angle of the top plate is adjusted according to the actual working surface inclination. The support shaft is rotated to tilt the top plate. After adjusting to the appropriate angle, the fixing switch is tightened to stop the support shaft from rotating, so that the top plate maintains its current state. This not only enables the device to adapt to different working surface support conditions, but also reduces the space between the device and the working surface. The gap improves the supporting force of the device and increases the stability. At the same time, the top plate can be made to fit the working surface more closely through the sponge pad, support block, shock absorber, limit rod and limit groove. The working surface is rugged. After the top plate contacts the working surface, the working surface will squeeze the sponge pad above the top plate. The support block at the bottom of the sponge pad will be compressed after being squeezed. The shock absorbers at different positions are compressed to different degrees due to the different undulations of the working surface, so that the sponge pad can fit the working surface more closely and the force is more evenly applied, thereby improving the supporting effect of the device and increasing safety.

[0009] As an optional solution of the technical solution of the present application, a fixing hole is opened at the top of the base on one side of the hydraulic cylinder, and a fixing rivet is slidably connected to the inner wall of the fixing hole up and down.

[0010] As an optional solution of the technical solution of the present application, a cross bar is fixedly connected to the middle section of the side wall of the hydraulic cylinder, and an inclined bar is fixedly welded to the center of the bottom of the cross bar, and the other end of the inclined bar is fixedly connected to the lower side wall of the hydraulic cylinder.

[0011] As an optional solution of the technical solution of the present application, a shock absorber is fixedly connected to the center of the bottom of the support block, and the bottom of the shock absorber is fixedly connected to the bottom of the groove.

[0012] As an optional solution of the technical solution of the present application, a side rod is welded to the top of the base, the top of the side rod is fixedly connected to the side wall of the hydraulic cylinder, and the side rod is located on the opposite side of the fixed switch.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present application can adapt to different working surface inclinations through the fixed plate, support shaft, fixed switch and top plate. The inclination angle of the top plate can be adjusted according to the actual working surface inclination. This not only enables the device to adapt to different working surface support conditions, but also reduces the gap with the working surface, thereby improving the supporting force of the device and increasing stability.

[0015] 2. The present application can make the top plate fit the working surface more closely through the sponge pad, support block, shock absorber, limit rod and limit groove. The working surface will squeeze the sponge pad above the top plate. The support block at the bottom of the sponge pad will be compressed after being squeezed. The degree of compression of shock absorbers at different positions is different due to the different undulations of the working surface, so that the sponge pad can fit the working surface more closely and the force is more evenly distributed, thereby improving the supporting effect of the device and increasing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view of the supporting structure of the mining working face;

[0017] Figure 2 This is a partial enlarged view of location A of the support structure of the mining working face;

[0018] Figure 3 This is a side structural schematic diagram of the support structure of this mining working face.

[0019] Among them, 1. base; 2. fixing rivet; 201, fixing hole; 3. hydraulic cylinder; 4. cross bar; 5. diagonal bar; 6. fixing plate; 7. support shaft; 8. fixed switch; 9. top plate; 901, groove; 10. sponge pad; 11. support block; 12. shock absorber; 13. limit rod; 14. limit slot; 15. side rod. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, they are further explained below in conjunction with specific implementation methods.

[0021] like Figure 1 As shown, a mining face support structure includes a base 1, a hydraulic cylinder 3, a top plate 9, a support shaft 7 and a limit rod 13. The hydraulic cylinder 3 is fixedly installed at the top center of the base 1, and the support shaft 7 is connected to the top of the side wall of the hydraulic cylinder 3. Both ends of the support shaft 7 pass through the fixed plate 6, and one end of the support shaft 7 is fixedly connected to a fixed switch 8. The top of the fixed plate 6 is fixedly connected to the bottom two sides of the top plate 9.

[0022] like Figure 1 As shown, a groove 901 is provided at the top of the top plate 9, and a limiting groove 14 is provided at the bottom of the groove 901. The two sides of the bottom of the sponge pad 10 are detachably connected to the two sides of the top of the top plate 9. The sponge pad 10 can provide a buffering effect for the support block 11 and reduce the entry of dust into the groove 901.

[0023] like Figure 1 As shown, a fixing hole 201 is opened at the top of the base 1 on one side of the hydraulic cylinder 3, and a fixing rivet 2 is slidably connected to the inner wall of the fixing hole 201 up and down, a cross bar 4 is fixedly connected to the middle section of the side wall of the hydraulic cylinder 3, and an inclined rod 5 is fixedly welded to the center of the bottom of the cross bar 4, and the other end of the inclined rod 5 is fixedly connected to the lower side wall of the hydraulic cylinder 3, and the cross bar 4 and the inclined rod 5 can increase the stability of the device.

[0024] like Figure 2 As shown, the limit rod 13 is connected by sliding up and down the inner wall of the limit groove 14, the top of the limit rod 13 is fixedly connected to the two sides of the bottom of the support block 11, the top of the support block 11 is in contact with the bottom of the sponge pad 10, and the shock absorber 12 is fixedly connected to the center of the bottom of the support block 11, and the bottom of the shock absorber 12 is fixedly connected to the bottom of the groove 901. The limit rod 13 slides up and down in the limit groove 14, which can prevent the support block 11 from tilting due to extrusion.

[0025] like Figure 3 As shown, a side rod 15 is welded to the top of the base 1, and the top of the side rod 15 is fixedly connected to the side wall of the hydraulic cylinder 3. The side rod 15 is located on the opposite side of the fixed switch 8, and the side rod 15 can increase the lateral stability of the device.

[0026] In actual use, the height of the top plate 9 is adjusted by the hydraulic cylinder 3, and the base 1 is fixed to the ground through the fixing hole 201 using the fixing rivet 2, so as to increase stability. The fixing plate 6, the support shaft 7, the fixing switch 8 and the top plate 9 can adapt to different working surface inclinations. According to the actual working surface inclination, the inclination angle of the top plate 9 is adjusted, the support shaft 7 is rotated to tilt the top plate 9, and after adjusting to a suitable angle, the fixing switch 8 is tightened to stop the support shaft 7 from rotating, so that the top plate 9 maintains the current state. This not only enables the device to adapt to different working surface support conditions, but also reduces the gap with the working surface, thereby improving The supporting force of the device increases stability. At the same time, through the sponge pad 10, the support block 11, the shock absorber 12, the limit rod 13 and the limit groove 14, the top plate 9 can be more closely fitted to the working surface. The working surface is rugged. After the top plate 9 contacts the working surface, the working surface will squeeze the sponge pad 10 above the top plate 9. The support block 11 at the bottom of the sponge pad 10 will be compressed after being squeezed. The shock absorber 12 at different positions is compressed to different degrees due to the different undulations of the working surface, so that the sponge pad 10 can fit the working surface more closely and the force is more evenly applied, thereby improving the supporting effect of the device and increasing safety.

Claims

1. A mining face support structure, comprising a base (1), a hydraulic cylinder (3), a top plate (9), a support shaft (7) and a limit rod (13), characterized in that: A hydraulic cylinder (3) is fixedly installed at the center of the top of the base (1); a support shaft (7) is connected to the top of the side wall of the hydraulic cylinder (3); both ends of the support shaft (7) pass through the fixed plate (6); one end of the support shaft (7) is fixedly connected to the fixed switch (8); the top of the fixed plate (6) is fixedly connected to the bottom two sides of the top plate (9); the top of the top plate (9) is provided with a groove (901); the bottom of the groove (901) is provided with a limiting groove (14); the limiting rod (13) is connected to the inner side wall of the limiting groove (14) by sliding up and down; the top of the limiting rod (13) is fixedly connected to the bottom two sides of the support block (11); the top of the support block (11) is contacted and connected to the bottom of the sponge pad (10); the bottom two sides of the sponge pad (10) are detachably connected to the top two sides of the top plate (9).

2. A mining face support structure according to claim 1, characterized in that: A fixing hole (201) is provided at the top of the base (1) on one side of the hydraulic cylinder (3), and a fixing rivet (2) is slidably connected to the inner wall of the fixing hole (201) up and down.

3. A mining face support structure according to claim 1, characterized in that: A cross bar (4) is fixedly connected to the middle section of the side wall of the hydraulic cylinder (3), and an inclined bar (5) is fixedly welded to the center of the bottom of the cross bar (4), and the other end of the inclined bar (5) is fixedly connected to the lower part of the side wall of the hydraulic cylinder (3).

4. A mining face support structure according to claim 1, characterized in that: A shock absorber (12) is fixedly connected to the center of the bottom of the support block (11), and the bottom of the shock absorber (12) is fixedly connected to the bottom of the groove (901).

5. A mining face support structure according to claim 1, characterized in that: A side rod (15) is welded to the top end of the base (1), the top end of the side rod (15) is fixedly connected to the side wall of the hydraulic cylinder (3), and the side rod (15) is located on the opposite side of the fixed switch (8).

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