Mining telescopic hydraulic temporary supporting frame

Abstract

The utility model relates to the field of supporting frames, and discloses a mining telescopic hydraulic temporary supporting frame which comprises a base, the surface of the base is rotationally connected with a connecting frame through a rotating shaft, the surface of the connecting frame is rotationally connected with a supporting frame through a rotating shaft, and the bottom of the supporting frame is rotationally connected with a hydraulic cylinder through a rotating shaft. A mounting plate is fixedly connected to the bottom of the supporting frame, an oil cylinder is fixedly connected to the side wall of the mounting plate, a supporting plate is fixedly connected to the output end of the oil cylinder, and a guide groove is formed in the inner wall of the supporting frame. According to the utility model, the oil cylinder, the supporting plate, the guide groove and other structures are arranged, so that the supporting area is enlarged when a mine hole is temporarily supported, the wall thickness difference generated between the supporting plate and the supporting frame is made up to ensure the flatness of a supporting area, and finally, water flow can be discharged to avoid accumulation in the supporting area when the mine hole is sprayed with water; and the temporary supporting effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of support frame, especially relates to a mine telescopic hydraulic temporary support frame. BACKGROUND

[0002] In the process of mining, the stability of the roof rock is destroyed, and the roof rock is prone to collapse. The hydraulic temporary support frame can support the roof in time after blasting, and its hydraulic system can provide strong support force to effectively prevent the collapse of the roof rock and ensure the safety of underground workers during operation. In some soft rock mines or areas with poor geological conditions, the roof rock itself is low in strength and easy to weather and break, and the hydraulic temporary support frame can quickly build a temporary stable space to gain time for subsequent permanent support work.

[0003] Through retrieval, the patent publication number CN220566111U discloses a supporting hydraulic frame, which can provide additional support force to help withstand the pressure of the coal wall, ensuring the stability and safety of the coal wall. The extension of the extension plate can provide more stable support and reduce the risk of coal wall collapse, effectively preventing coal wall spalling and improving the safety performance of the working face.

[0004] In the above technical solution, the extension plate provides additional support force to the support frame to achieve the purpose of stable support. However, the support frame cannot expand the support area when supporting the top of the mine, and some telescopic extension plates cannot compensate for the gap between the telescopic areas when supporting. The uneven support area leads to uneven stress distribution of the support area, reducing the support effect. Therefore, a mine telescopic hydraulic temporary support frame is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] To make up for the above shortcomings, the utility model provides a mine telescopic hydraulic temporary support frame, which aims to improve the problem of reduced support effect caused by the inability of the mine telescopic hydraulic temporary support frame in the prior art to expand the support area.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a mine telescopic hydraulic temporary support frame, including base, the surface of base is connected with the connecting frame through the pivot rotation, the surface of connecting frame is connected with the support frame through the pivot rotation, the bottom of support frame is connected with the hydraulic cylinder through the pivot rotation, the bottom fixed connection of support frame has the mounting panel, the lateral wall fixed connection of mounting panel has the oil cylinder, the output fixed connection of oil cylinder has the support board, the inner wall of support frame is equipped with the guide groove, the inner wall sliding connection of guide groove has the guide block, the top of support board is equipped with the slot, the inner wall fixed connection of slot has the telescopic link, the outer wall sleeve of telescopic link has the spring, the inner wall sliding connection of slot has the fit frame, the outer wall of fit frame is equipped with the inclined plane, the surface of support frame is provided with drainage assembly.

[0007] As further description of the above technical scheme:

[0008] The outer wall of the guide block is fixedly connected with the outer wall of the support plate.

[0009] As further description of the above technical scheme:

[0010] The top of the telescopic link is fixedly connected with the inner surface of the fit frame, and the inclined plane is arranged on the outer wall of the fit frame close to the oil cylinder.

[0011] As further description of the above technical scheme:

[0012] The drainage assembly comprises a V-shaped guide groove, the inner wall of the slot is fixedly connected with an inclined slope, and the outer wall of the support plate is provided with an inclined hole.

[0013] As further description of the above technical scheme:

[0014] The V-shaped guide groove is arranged at the top of the support frame.

[0015] As further description of the above technical scheme:

[0016] One end of the inclined slope close to the oil cylinder is higher than the other end of the inclined slope away from the oil cylinder, and the inclined hole is arranged in a downward inclined manner.

[0017] As further description of the above technical scheme:

[0018] The top of the support frame is provided with a limiting groove, the limiting groove is provided with a protruding block in the inside, the top of the protruding block is fixedly connected with a mounting frame, and the mounting frame is fixedly connected with a filter screen in the inside.

[0019] As further description of the above technical scheme:

[0020] The inner wall of the limiting groove is matched with the outer wall of the protruding block, the mounting frame is in a back-shaped arrangement, and the bottom of the mounting frame is attached to the top of the support frame.

[0021] The utility model has the advantages of the following:

[0022] 1. In the utility model, the cooperation of the oil cylinder, support plate, guide groove, guide block, notch, telescopic rod, spring, fitting frame and drainage assembly expands the support area when temporarily supporting the mine tunnel, compensates for the wall thickness difference between the support plate and the support frame to ensure the flatness of the support area, and finally drains the water flow to avoid accumulation in the support area when the mine tunnel appears to be raining, thereby improving the temporary support effect.

[0023] 2. In the utility model, the cooperation of the limiting groove, protruding block, mounting frame and filter screen filters the water flow when draining to avoid a large amount of soil, sand and stone from being discharged with the water source, and facilitates quick disassembly and assembly of the filter screen, thereby ensuring stable drainage and improving the convenience of daily maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A side view schematic diagram of the main structure of the utility model of a mine telescopic hydraulic temporary support frame is provided.

[0025] Figure 2 A bottom view schematic diagram of the main structure of the utility model of a mine telescopic hydraulic temporary support frame is provided.

[0026] Figure 3 A partial structure separation sectional view schematic diagram of the utility model of a mine telescopic hydraulic temporary support frame is provided.

[0027] Figure 4 A filter screen and support frame separation top view schematic diagram of the utility model of a mine telescopic hydraulic temporary support frame is provided.

[0028] Figure 5 A Figure 4 A enlarged schematic diagram of area A of the utility model of a mine telescopic hydraulic temporary support frame is provided.

[0029] LEGEND:

[0030] 1. Base; 2. Connecting frame; 3. Support frame; 4. Hydraulic cylinder; 5. Mounting plate; 6. Oil cylinder; 7. Support plate; 8. Guide groove; 9. Guide block; 10. Notch; 11. Telescopic rod; 12. Spring; 13. Fitting frame; 14. Inclined surface; 15. V-shaped flow guide groove; 16. Inclined slope; 17. Inclined hole; 18. Limiting groove; 19. Protruding block; 20. Mounting frame; 21. Filter screen. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] With reference to Figures 1-3 The utility model provides an embodiment: a mine telescopic hydraulic temporary support frame, including base 1, the surface of base 1 is connected with connecting frame 2 through the pivot rotation, the surface of connecting frame 2 is connected with support frame 3 through the pivot rotation, the bottom of support frame 3 is connected with hydraulic cylinder 4 through the pivot rotation, hydraulic cylinder 4 is provided with two groups, and two groups of hydraulic cylinder 4 are symmetrically arranged with the central axis of support frame 3 as the symmetry axis, two groups of hydraulic cylinder 4 are connected with base 1 through ball hinge, and hydraulic mechanical two-stage locking device triggered by sensor is configured, hydraulic cylinder 4 promotes support frame 3 to go up and down and is the prior art of the field disclosure, and here is not too much repetition, the bottom of support frame 3 is fixedly connected with mounting plate 5, the side wall of mounting plate 5 is fixedly connected with oil cylinder 6, oil cylinder 6 is provided with two groups, and two groups of oil cylinder 6 are located on the opposite side of two groups of hydraulic cylinder 4 respectively, the output end of oil cylinder 6 is fixedly connected with support plate 7, the inner wall of support frame 3 is provided with guide slot 8, the inner wall of guide slot 8 is slidably connected with guide block 9, the outer wall of guide block 9 is fixedly connected with the outer wall of support plate 7, when support plate 7 is driven by oil cylinder 6 to extend out from support frame 3, guide block 9 is slid in guide slot 8, the stability of support plate 7 displacement is ensured, the top of support plate 7 is provided with slot 10, the inner wall of slot 10 is fixedly connected with telescopic rod 11, the outer wall of telescopic rod 11 is sleeved with spring 12, the inner wall of slot 10 is slidably connected with fit frame 13, the top of telescopic rod 11 is fixedly connected with the inner surface of fit frame 13, the outer wall of fit frame 13 is provided with inclined plane 14, inclined plane 14 is arranged on the outer wall of fit frame 13 close to oil cylinder 6, the setting of inclined plane 14 can be naturally contacted with the edge of support frame 3 when being in the top position of slot 10.

[0033] With reference to Figures 3-5The surface of the support frame 3 is provided with a drainage assembly, which comprises V-shaped flow guide grooves 15. The V-shaped flow guide grooves 15 are arranged on the top of the support frame 3. The V-shaped flow guide grooves 15 are arranged in groups, and the groups of V-shaped flow guide grooves 15 are arranged at equal distances on the surface of the support frame 3 and the fitting frame 13. The V-shaped flow guide grooves 15 can drain water. The inner wall of the slot 10 is fixedly connected with a slope 16. One end of the slope 16 close to the oil cylinder 6 is higher than the other end of the slope 16 away from the oil cylinder 6. The edge of the support plate 7 is round. When water appears, the water flowing out of the V-shaped flow guide groove 15 can be naturally drained. The outer wall of the support plate 7 is provided with an inclined hole 17. The inclined hole 17 is arranged in a downward inclined manner. The inclined hole 17 can drain the water flowing into the slot 10. The inclined hole 17 arranged in a downward inclined manner cooperates with the gravity to prevent water from remaining in the inclined hole 17.

[0034] Referring to Figures 4-5 The top of the support frame 3 is provided with a limiting groove 18. The limiting groove 18 is provided with a protrusion 19. The inner wall of the limiting groove 18 is matched with the outer wall of the protrusion 19. The top of the protrusion 19 is fixedly connected with a mounting frame 20. The mounting frame 20 is arranged in a back-shaped manner. The bottom of the mounting frame 20 is matched with the top of the support frame 3. The mounting frame 20 is fixedly connected with a filter screen 21. The filter screen 21 can prevent a large amount of sand and soil from being carried away by water when the mine support is performed.

[0035] Working principle: move the base 1 to the position required for support, start the two groups of hydraulic cylinders 4 to lift the support frame 3 until the top of the mine is contacted. When the area of the mine is large, open the two groups of oil cylinders 6. The two groups of oil cylinders 6 are started to drive the support plate 7 to gradually move out of the support frame 3. When the support plate 7 moves, the guide block 9 slides in the guide groove 8 to ensure the stability of the displacement. When the guide block 9 moves to the edge of the guide groove 8, the oil cylinder 6 is pushed to the extreme. At this time, the fitting frame 13 is exposed outside. The fitting frame 13 loses the limitation of the support frame 3. The spring 12 restores the elastic force to drive the telescopic rod 11 to stretch. The fitting frame 13 is popped out of the slot 10 to compensate the wall thickness between the support plate 7 and the support frame 3 to ensure the flatness of the support area. When the mine appears water, the water is filtered by the filter screen 21 and flows downward in the V-shaped flow guide groove 15 to avoid the accumulation on the support frame 3 and the support plate 7. At the same time, part of the unavoidable water flows into the slot 10 and is drained through the inclined side of the slope 16 to the inclined hole 17. When the temporary support work is completed, the hydraulic cylinder 4 drives the support frame 3 to descend. The two groups of mounting frames 20 on the support frame 3 and the fitting frame 13 are forced upward to make the protrusion 19 move out of the limiting groove 18. The filter screen 21 is quickly removed. Finally, the oil cylinder 6 drives the support plate 7 to move into the bottom of the support frame 3 in the reverse direction. Through the angle of the inclined surface 14, the fitting frame 13 can be naturally embedded in the slot 10 to restore the initial state of the support device for subsequent temporary support work.

[0036] It should be pointed out finally that: the above only for the preferred embodiments of the utility model have, and do not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A retractable hydraulic temporary support frame for mining, comprising a base (1), wherein a connecting frame (2) is rotatably connected to the surface of the base (1) via a pivot, a support frame (3) is rotatably connected to the surface of the connecting frame (2) via a pivot, and a hydraulic cylinder (4) is rotatably connected to the bottom of the support frame (3) via a pivot, characterized in that: The bottom of the support frame (3) is fixedly connected with a mounting plate (5), the side wall of the mounting plate (5) is fixedly connected with an oil cylinder (6), the output end of the oil cylinder (6) is fixedly connected with a support plate (7), the inner wall of the support frame (3) is provided with a guide groove (8), the inner wall of the guide groove (8) is slidably connected with a guide block (9), the top of the support plate (7) is provided with a notch (10), the inner wall of the notch (10) is fixedly connected with an extension rod (11), the outer wall of the extension rod (11) is sleeved with a spring (12), the inner wall of the notch (10) is slidably connected with a fitting frame (13), the outer wall of the fitting frame (13) is provided with an inclined surface (14), and the surface of the support frame (3) is provided with a drainage assembly.

2. A telescopic hydraulic temporary support frame for mining according to claim 1, characterised in that: The outer wall of the guide block (9) is fixedly connected with the outer wall of the support plate (7).

3. A telescopic hydraulic temporary support frame for mining according to claim 1, characterised in that: The top of the extension rod (11) is fixedly connected with the inner surface of the fitting frame (13), and the inclined surface (14) is arranged on the outer wall of the fitting frame (13) close to the oil cylinder (6).

4. A telescopic hydraulic temporary support frame for mining use according to claim 1, characterized in that: The drainage assembly comprises a V-shaped flow guide groove (15), the inner wall of the notch (10) is fixedly connected with an inclined slope (16), and the outer wall of the support plate (7) is provided with an inclined hole (17).

5. A telescoping hydraulic temporary roof support for use in a mine according to claim 4 wherein: The V-shaped flow guide groove (15) is arranged at the top of the support frame (3).

6. A telescoping hydraulic temporary roof support for use in a mine according to claim 4 wherein: One end of the inclined slope (16) close to the oil cylinder (6) is higher than the other end of the inclined slope (16) away from the oil cylinder (6), and the inclined hole (17) is arranged in a downward inclined manner.

7. A telescoping hydraulic temporary roof support for use in a mine according to claim 1 characterised in that: The top of the support frame (3) is provided with a limiting groove (18), the inside of the limiting groove (18) is provided with a protruding block (19), the top of the protruding block (19) is fixedly connected with a mounting frame (20), and the inside of the mounting frame (20) is fixedly connected with a filter screen (21).

8. A telescopic hydraulic temporary support frame for use in mines as claimed in claim 7, characterised in that: The inner wall of the limiting groove (18) is matched with the outer wall of the protruding block (19), the mounting frame (20) is arranged in a back-shaped manner, and the bottom of the mounting frame (20) is matched with the top of the support frame (3).

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