Underground mining hydraulic support

Abstract

The utility model belongs to the technical field of mining hydraulic supports, and particularly relates to an underground mining hydraulic support which comprises a base, first rotating rods are symmetrically and rotationally arranged on one side of the base, second rotating rods are symmetrically and rotationally arranged on the side, close to the first rotating rods, of the upper side face of the base, and rotating plates are rotationally arranged on the upper sides of the first rotating rods and the upper sides of the second rotating rods. A supporting plate is rotationally arranged on the upper side of the rotating plate. The output end of the main hydraulic rod drives the supporting plate to move upwards, after the supporting plate is close to the top of the roadway, hydraulic pressure in the hydraulic box is controlled through the first liquid guide pipe and the second liquid guide pipe, and the piston rods sequentially push the supporting rods upwards under the hydraulic action. The supporting rods are directly and respectively contacted with the top of the roadway, and the supporting rods can extend out of different heights according to the contact surface distribution of the top of the roadway so as to support different parts of the top of the roadway, so that the supporting contact to the top of the roadway is more comprehensive compared with the supporting of a whole surface plate, and the supporting strength to the top of the roadway and the supporting stability are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic supports for mines, and in particular relates to a hydraulic support for underground mines. Background Art

[0002] During coal mining, hydraulic supports are generally used for support of the internal tunnels of the mine. The top support plates of current hydraulic supports are generally flat plates, while the top of the tunnel is generally uneven, and the higher it is towards the middle. Supporting it only with a flat plate will result in incomplete support contact with the top of the tunnel, resulting in a decrease in support strength. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a hydraulic support for underground mining, which solves the problem that during coal mining, hydraulic supports are generally used for support in the internal tunnels of the mine. The top support plate of the current hydraulic support is generally a flat plate, and the top of the tunnel is generally uneven, and the higher it is towards the middle. Support only by a flat plate will result in incomplete support contact with the top of the tunnel, thereby causing a decrease in support strength.

[0004] To achieve the above objectives, the utility model adopts the following technical solution: an underground mining hydraulic support, comprising a base, a rotating rod 1 is symmetrically rotatably arranged on one side of the base, a rotating rod 2 is symmetrically rotatably arranged on the upper side of the base close to the rotating rod 1, a rotating plate is rotatably arranged on the upper side of the rotating rod 1 and the rotating rod 2, a support plate is rotatably arranged on the upper side of the rotating plate, a hydraulic box is arranged on the lower side of the support plate, piston rods are equidistantly arranged on the upper side of the hydraulic box, support rods are arranged on the upper sides of the piston rods, a liquid guide tube 1 and a liquid guide tube 2 are respectively connected to the lower side of the hydraulic box, a main hydraulic rod is symmetrically rotatably arranged on the upper side of the base, and the upper output end of the main hydraulic rod is rotatably connected to the lower side of the support plate.

[0005] The beneficial effects of the utility model are as follows: the output end of the main hydraulic rod drives the support plate to move upward, and after the support plate approaches the top of the tunnel, the hydraulic pressure in the hydraulic box is controlled by the first and second liquid guide tubes, and the piston rod is acted upon by the hydraulic pressure to push the support rods upward in sequence until each support rod contacts the top of the tunnel respectively. The support rods can extend to different heights according to the distribution of the top contact surface of the tunnel, thereby supporting different parts of the top of the tunnel. Compared with the entire flat plate support, the support contact with the top of the tunnel is more comprehensive, thereby increasing the support strength of the top of the tunnel and increasing the stability of the support.

[0006] In order to increase the shielding protection range of the device to the middle of the tunnel;

[0007] As a further improvement of the above technical solution: a secondary hydraulic rod is symmetrically rotatably arranged on the lower side of the support plate away from the rotating plate, a secondary support plate is rotatably arranged on the side of the support plate away from the rotating plate, and the output end of the secondary hydraulic rod is rotatably connected to the secondary support plate.

[0008] The beneficial effect of this improvement is that a secondary hydraulic rod is provided, and the output end of the secondary hydraulic rod pushes the secondary support plate to flip upward, which can increase the shielding and protection range of the device for the middle part of the tunnel.

[0009] To reduce material consumption;

[0010] As a further improvement of the above technical solution: side rods are symmetrically threaded on both sides of the support plate, sliding blocks are arranged on the outer sides of the side rods, an auxiliary plate is arranged on the upper side of the sliding block, and bolts are symmetrically threaded on the lower side of the sliding block, and the bolts penetrate the sliding block and are rotatably connected to the auxiliary plate.

[0011] The beneficial effect of this improvement is that when the devices are supported, they are generally distributed closely to provide connection support for the laneways. This will result in the investment of a large number of devices and increase material consumption. Side rods are set to connect the support plates of adjacent devices, and sliding blocks are evenly distributed between the rotating plates. The bolts are adjusted and the bolts push the auxiliary plates upward to support the laneways. The laneway parts between the devices can be supported, thereby reducing device investment and reducing material consumption.

[0012] In order to adjust the supporting position of the auxiliary plate;

[0013] As a further improvement of the above technical solution: the sliding block is slidably sleeved with the side rod.

[0014] The beneficial effect of this improvement is that the sliding block is slidably sleeved with the side rod, so that the position of the sliding block can be freely adjusted, thereby adjusting the supporting position of the auxiliary plate.

[0015] In order to facilitate the adjustment of the device position;

[0016] As a further improvement of the above technical solution: seat rods are symmetrically arranged on the lower side of the base, hydraulic telescopic rods are arranged on the sides of the seat rods close to each other, fixed blocks are arranged at the output ends of the hydraulic telescopic rods, and the upper side of the fixed blocks is fixedly connected to the base.

[0017] The beneficial effect of this improvement is: when placing the device, it is sometimes necessary to adjust the position of the device. The device as a whole is bulky and difficult to adjust the position. The output end of the hydraulic telescopic rod drives the fixed block, and then drives the base to slide on the upper side of the seat rod, thereby facilitating the adjustment of the position of the device.

[0018] In order to increase the flexibility of the device movement and the stability of the base relative to the seat post;

[0019] As a further improvement of the above technical solution: connecting grooves are symmetrically opened on the lower side of the base, sliding rods are arranged on the upper side of the seat rods, and support rollers are equidistantly arranged on the upper side of the sliding rods. The sliding rods are slidingly connected to the connecting grooves, and the support rollers are rollingly connected to the connecting grooves.

[0020] The beneficial effect of this improvement is that the support roller is arranged to roll in the connecting groove, so as to increase the flexibility of the movement of the device and the stability of the base relative to the seat rod.

[0021] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 3 It is a structural side view of the utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure between the hydraulic box and the support rod in the utility model;

[0026] Figure 5 This is a schematic diagram of the connection structure of the base in the utility model;

[0027] In the figure: 1. base; 2. rotating rod 1; 3. rotating rod 2; 4. rotating plate; 5. support plate; 6. hydraulic box; 7. piston rod; 8. support rod; 9. liquid guide tube 1; 10. liquid guide tube 2; 11. main hydraulic rod; 12. auxiliary hydraulic rod; 13. auxiliary support plate; 14. side rod; 15. sliding block; 16. auxiliary plate; 17. bolt; 18. connecting groove; 19. seat rod; 20. sliding rod; 21. support roller; 22. hydraulic telescopic rod; 23. fixing block. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0029] like Figure 1 — Figure 5As shown: an underground mining hydraulic support, comprising a base 1, a rotating rod 2 is symmetrically rotatably arranged on one side of the base 1, a rotating rod 2 3 is symmetrically rotatably arranged on the upper side of the base 1 close to the rotating rod 2, a rotating plate 4 is rotatably arranged on the upper side of the rotating rod 2 and the rotating rod 2 3, a supporting plate 5 is rotatably arranged on the upper side of the rotating plate 4, a hydraulic box 6 is arranged on the lower side of the supporting plate 5, a piston rod 7 is equidistantly arranged on the upper side of the hydraulic box 6, a supporting rod 8 is arranged on the upper side of the piston rod 7, a liquid guide tube 1 9 and a liquid guide tube 2 10 are respectively connected on the lower side of the hydraulic box 6, a main hydraulic rod 11 is symmetrically rotatably arranged on the upper side of the base 1, an upper output end of the main hydraulic rod 11 is rotatably connected to the lower side of the supporting plate 5, the output end of the main hydraulic rod 11 drives the supporting plate 5 to move upward, and after the supporting plate 5 approaches the top of the tunnel, the hydraulic pressure in the hydraulic box 6 is controlled by the liquid guide tube 1 9 and the liquid guide tube 2 10, and the piston rod 7 is acted on by the hydraulic pressure to push the supporting rod 8 upward in turn.The support rods 8 are directly connected to the top of the tunnel, and the support rods 8 can extend to different heights according to the distribution of the top contact surface of the tunnel, so as to support different parts of the top of the tunnel. Compared with the support of the entire plane plate, the support contact with the top of the tunnel is more comprehensive, thereby increasing the support strength of the top of the tunnel and increasing the stability of the support. A secondary hydraulic rod 12 is symmetrically arranged on the side of the lower side of the support plate 5 away from the rotating plate 4, and a secondary support plate 13 is rotatably arranged on the side of the support plate 5 away from the rotating plate 4. The output end of the secondary hydraulic rod 12 is rotatably connected to the secondary support plate 13, and the secondary hydraulic rod 12 is arranged. The output end of the secondary hydraulic rod 12 pushes the secondary support plate 13 to rotate. The support plate 13 is flipped upward to increase the shielding protection range of the device for the middle of the lane. The two sides of the support plate 5 are symmetrically threaded with side rods 14, and the outer side of the side rods 14 is provided with sliding blocks 15. The upper side of the sliding block 15 is provided with auxiliary plates 16, and the lower side of the sliding block 15 is symmetrically threaded with bolts 17. The bolts 17 penetrate the sliding block 15 and are rotatably connected with the auxiliary plate 16. When the device is supported, it is generally closely distributed, so as to connect and support the lane. This will lead to the investment of a large number of devices and increase material consumption. The side rods 14 are set to connect the support plates 5 of adjacent devices, and the sliding blocks are evenly distributed between the rotating plates 4. 15, adjusting bolt 17, bolt 17 pushes the auxiliary plate 16 upward to support the lane, which can support the lane part between the devices, thereby reducing the device investment and reducing material consumption. The sliding block 15 is slidably sleeved with the side rod 14, and the sliding block 15 is slidably sleeved with the side rod 14, which is convenient for freely adjusting the position of the sliding block 15, thereby adjusting the supporting position of the auxiliary plate 16. The lower side of the base 1 is symmetrically provided with seat rods 19, and the sides of the seat rods 19 close to each other are provided with hydraulic telescopic rods 22. The output end of the hydraulic telescopic rod 22 is provided with a fixed block 23, and the upper side of the fixed block 23 is fixedly connected to the base 1. When placing the device, it is sometimes necessary To adjust the position of the device, the device as a whole is bulky and difficult to adjust the position. The output end of the hydraulic telescopic rod 22 drives the fixed block 23, and then drives the base 1 to slide on the upper side of the seat rod 19, so as to facilitate the adjustment of the position of the device. The lower side of the base 1 is symmetrically provided with connecting grooves 18, and the upper side of the seat rod 19 is provided with sliding rods 20. The upper side of the sliding rod 20 is equidistantly provided with support rollers 21. The sliding rod 20 is slidably connected to the connecting groove 18, and the support roller 21 is rollingly connected to the connecting groove 18. The support roller 21 is arranged to roll in the connecting groove 18, so as to increase the flexibility of the device movement and the stability of the base 1 relative to the seat rod 19.

[0030] The working principle and use process of this utility model:

[0031] When in use, the device is arranged on both sides of the tunnel, the main hydraulic rod 11 is started, and the output end of the main hydraulic rod 11 drives the support plate 5 to move upward. After the support plate 5 is close to the top of the tunnel, the hydraulic pressure in the hydraulic box 6 is controlled by the liquid guide tube 1 9 and the liquid guide tube 2 10. The piston rod 7 is hydraulically acted on and pushes the support rods 8 upward in sequence. Until each support rod 8 contacts the top of the tunnel respectively, the support rod 8 can extend to different heights according to the distribution of the top contact surface of the tunnel, so as to support different parts of the top of the tunnel. Compared with the support of the entire flat plate, the support contact with the top of the tunnel is more comprehensive, thereby increasing the support strength of the top of the tunnel and increasing the stability of the support. In addition, when in use, a secondary hydraulic rod 12 is set, and the output end of the secondary hydraulic rod 12 pushes the secondary support plate 13 to flip upward, which can increase the shielding and protection range of the device to the middle of the tunnel. In addition, when the device is supported, it is generally distributed closely, so as to connect and support the tunnel, which will lead to the investment of a large number of devices and increase material consumption. The side rod 14 is set to connect the support plates 5 of adjacent devices and the rotating plates 4. The sliding blocks 15 are evenly distributed, and the bolts 17 are adjusted. The bolts 17 push the auxiliary plates 16 upward to support the tunnels, which can support the tunnel parts between the devices, thereby reducing the investment in the devices and reducing the material consumption. The sliding blocks 15 are slidably connected with the side rods 14, which is convenient for freely adjusting the position of the sliding blocks 15, thereby adjusting the supporting position of the auxiliary plates 16. In addition, when placing the device, it is sometimes necessary to adjust the position of the device. The device as a whole is bulky and difficult to adjust the position. The fixed block 23 is driven by the output end of the hydraulic telescopic rod 22, and then the base 1 is driven to slide on the upper side of the seat rod 19, thereby facilitating the adjustment of the position of the device. In addition, a support roller 21 is set to roll in the connecting groove 18, which is convenient for increasing the flexibility of the device movement and the stability of the base 1 relative to the seat rod 19.

[0032] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0033] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A hydraulic support for underground mining, characterized in that: The invention comprises a base (1), a rotating rod 1 (2) is symmetrically rotatably arranged on one side of the base (1), a rotating rod 2 (3) is symmetrically rotatably arranged on the upper side of the base (1) near the rotating rod 1 (2), a rotating plate (4) is rotatably arranged on the upper side of the rotating rod 1 (2) and the rotating rod 2 (3), a supporting plate (5) is rotatably arranged on the upper side of the rotating plate (4), a hydraulic box (6) is arranged on the lower side of the supporting plate (5), piston rods (7) are equidistantly arranged on the upper side of the hydraulic box (6), support rods (8) are arranged on the upper side of the piston rods (7), a liquid guide tube 1 (9) and a liquid guide tube 2 (10) are respectively connected on the lower side of the hydraulic box (6), a main hydraulic rod (11) is symmetrically rotatably arranged on the upper side of the base (1), and the upper output end of the main hydraulic rod (11) is rotatably connected to the lower side of the supporting plate (5).

2. The underground mining hydraulic support according to claim 1, characterized in that: A secondary hydraulic rod (12) is symmetrically rotatably arranged on the lower side of the support plate (5) away from the rotating plate (4), and a secondary support plate (13) is rotatably arranged on the side of the support plate (5) away from the rotating plate (4), and the output end of the secondary hydraulic rod (12) is rotatably connected to the secondary support plate (13).

3. The underground mining hydraulic support according to claim 1, characterized in that: Side rods (14) are symmetrically threadedly arranged on both sides of the support plate (5), a sliding block (15) is arranged on the outer side of the side rod (14), an auxiliary plate (16) is arranged on the upper side of the sliding block (15), and bolts (17) are symmetrically threadedly arranged on the lower side of the sliding block (15), and the bolts (17) penetrate the sliding block (15) and are rotatably connected to the auxiliary plate (16).

4. The underground mining hydraulic support according to claim 3, characterized in that: The sliding block (15) is slidably sleeved with the side rod (14).

5. The underground mining hydraulic support according to claim 1, characterized in that: A seat rod (19) is symmetrically arranged on the lower side of the base (1), a hydraulic telescopic rod (22) is arranged on the side of the seat rod (19) close to each other, a fixed block (23) is arranged at the output end of the hydraulic telescopic rod (22), and the upper side of the fixed block (23) is fixedly connected to the base (1).

6. The underground mining hydraulic support according to claim 5, characterized in that: The lower side of the base (1) is symmetrically provided with a connecting groove (18), the upper side of the seat rod (19) is provided with a sliding rod (20), the upper side of the sliding rod (20) is equidistantly provided with a supporting roller (21), the sliding rod (20) is slidably connected to the connecting groove (18), and the supporting roller (21) is rollingly connected to the connecting groove (18).

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