Variable-arrangement large-working-resistance ultrahigh advanced hydraulic support

Abstract

The utility model provides a variable-arrangement large-working-resistance ultrahigh advanced hydraulic support, and belongs to the technical field of large-mining-height roadway supporting, the variable-arrangement large-working-resistance ultrahigh advanced hydraulic support comprises a front frame, three middle frames are arranged at the top position of the front of the front frame through connectors, a rear frame is arranged at the bottom position of the front of the middle frame through a connecting assembly, and the front of the rear frame is connected with the front of the front frame through a connecting assembly. Generally, the group of supports are arranged and combined through the pushing beams, the connecting assemblies, the connectors and the pushing jacks in a front-single-back-double mode, the supports are moved front and back through hydraulic force of the pushing jacks, and when the stress of a roadway changes, the double-row supports in the last row can be changed into the single-row supports according to the supporting condition needed by the roadway, so that the supporting efficiency is improved. And five groups of brackets can be changed into six groups of brackets, so that the width is narrowed, the transportation is convenient, the bracket can be suitable for roadway surrounding rock environments under different conditions, the purpose of effectively protecting personnel and equipment is achieved, and the purpose of convenient transportation and installation can also be achieved according to different permutation and combination.

Description

Technical Field

[0001] The present invention belongs to the technical field of large mining height tunnel support, and specifically relates to a variable arrangement large working resistance ultra-high advance hydraulic support. Background Art

[0002] my country is rich in coal resources, and the mining of thick and extra-thick coal seams plays an important role in ensuring coal production and supply capabilities. In recent years, with the continuous development of mechatronics, comprehensive mining mechanization, and automated control, my country's mining industry has been pushed into a fast track. Among them, the development of large-scale comprehensive mining technology has played an important role in the mining of thick and extra-thick coal seams.

[0003] In the existing technology, due to the continuous development of large-height fully-mechanized mining technology, the equipment in the mining area is getting larger and larger, which puts higher requirements on the tunnel support equipment on both sides of the mining area. If the support equipment on both sides of the tunnel is not upgraded, the tunnel surrounding rock environment will be complicated, and it will be difficult to achieve effective protection for personnel and equipment. It will also be inconvenient for operators to transport it conveniently, which may affect the efficiency of normal coal mining work. It will also be more troublesome for operators to disassemble the equipment, which increases the workload of operators and reduces practicality.

[0004] Therefore, we propose a variable arrangement large working resistance ultra-high advance hydraulic support to solve the tunnel surrounding rock environment in different situations, which can achieve the purpose of effective protection of personnel and equipment, and also facilitate transportation and installation. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems mentioned in the above background technology and to propose a variable arrangement large working resistance ultra-high advance hydraulic support.

[0006] The object of the present invention can be achieved by the following technical solution: a variable arrangement large working resistance ultra-high advance hydraulic support, comprising a front frame, a middle frame is provided at the top position in front of the front frame through a connector, and the number of the middle frames is three, and a rear frame is provided at the bottom position in front of the middle frame through a connecting assembly;

[0007] The rear frame includes two bottom plates, and the front of the upper surface of the two bottom plates is fixedly connected to a support frame, and the number of the support frames is four, and the bottom position in front of the two bottom plates is fixedly connected to a fixed plate, and a pin shaft 1 is provided inside the four support frames, and a connecting rod is provided on the outer surface of the pin shaft 1.

[0008] As a preferred embodiment of the present invention, a movable frame is provided at the top end of the connecting rod via a second pin, a fixed frame is provided above the inner wall of the movable frame via a third pin, and the number of the fixed frames is four.

[0009] As a preferred embodiment of the present invention, the upper surfaces of the four fixing frames are fixedly connected with load-bearing plates, and the number of the load-bearing plates is two.

[0010] As a preferred embodiment of the present invention, the lower surfaces of the two bearing plates are provided with lifting jacks, and the number of the lifting jacks is four.

[0011] As a preferred embodiment of the present invention, the connecting assembly includes a sliding beam, a square fixing groove is fixedly connected to the middle position of the upper surface of the sliding beam, and there are two square fixing grooves, and a threaded limiting groove is opened at the front position of the upper surface of the sliding beam.

[0012] As a preferred embodiment of the present invention, a limiting frame 1 is provided in the middle position in front of the sliding beam, a square groove is provided on the inner wall of the limiting frame 1, and a reinforcement clip is provided on the inner wall of the square groove, and the number of the reinforcement clips is two, and the two reinforcement clips are threadedly connected to a threaded fixing rod on the side away from the limiting frame 1, and two limiting frames 2 are provided on the left and right sides in front of the sliding beam.

[0013] As a preferred embodiment of the present invention, a card block is provided inside the limit frame 1, a square block is inserted at the bottom position of the inner wall of the card block, two circular plates are fixedly connected to the front of the two limit frames 2, and a push jack is fixedly connected to the middle position in front of the two circular plates.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) This group of supports is usually arranged and combined in a single-at-front-double-at-back manner using a push beam, connecting assembly, connector, and push jack, and the supports are moved forward and backward by the hydraulic pressure of the push jack. When the stress in the tunnel changes, the double-row supports in the last row can be changed to a single-row support according to the support required by the tunnel, and placed in the last row of the group of supports, thereby turning five groups of supports into six groups of supports. The push beam can connect two supports to increase the support width and improve the working resistance. It can also be connected to one support to narrow the width of the support for easy transportation, so that it can be applied to tunnel surrounding rock environments in different situations, achieving the purpose of effective protection of personnel and equipment. It can also be conveniently transported and installed according to different arrangements and combinations.

[0016] (2) By arranging and combining the push beam, the connector, the connecting assembly and the push jack, the connecting assembly can quickly remove the rear frame from the back of the middle frame, simplifying the disassembly steps and speeding up the installation efficiency, thereby avoiding the operator from spending a lot of manpower to disassemble and move the rear frame, reducing the operator's workload, and also improving the operator's work efficiency, simplifying the entire disassembly steps and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a structural schematic diagram of a variable arrangement large working resistance ultra-high advance hydraulic support according to the present invention;

[0019] Figure 2 It is the front view of the present invention;

[0020] Figure 3 A top view of the present invention;

[0021] Figure 4 Schematic diagram of the push beam structure of the present invention;

[0022] Figure 5 Schematic diagram of the connection assembly structure of the present invention.

[0023] In the figure: 1. Front frame; 2. Middle frame; 3. Connecting assembly; 4. Rear frame; 5. Bottom plate; 6. Support frame; 7. Fixed plate; 8. Pin 1; 9. Connecting rod; 10. Pin 2; 11. Movable frame; 12. Pin 3; 13. Fixed frame; 14. Load-bearing plate; 15. Lifting jack; 16. Sliding beam; 17. Square fixing groove; 18. Threaded limit groove; 19. Limit frame 1; 20. Square groove; 21. Reinforcement clamp; 22. Threaded fixing rod; 23. Limit frame 2; 24. Block; 25. Square block; 26. Round plate; 27. Sliding jack; 28. Connector. DETAILED DESCRIPTION

[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1:

[0026] See also Figure 1 - Figure 3 As shown, a variable arrangement large working resistance ultra-high advance hydraulic support includes a front frame 1, a middle frame 2 is provided at the top position in front of the front frame 1 through a connector 28, and the number of the middle frames 2 is three, and a rear frame 4 is provided at the bottom position in front of the front middle frame 2 through a connecting assembly 3;

[0027] The rear frame 4 includes two bottom plates 5, and the front of the upper surfaces of the two bottom plates 5 are fixedly connected with a support frame 6, and the number of the support frames 6 is four. The bottom position in front of the two bottom plates 5 is fixedly connected to a fixed plate 7, and a pin shaft 8 is provided inside the four support frames 6, and a connecting rod 9 is provided on the outer surface of the pin shaft 8.

[0028] In the existing technology, due to the continuous development of large-height fully-mechanized mining technology, the mining area equipment is getting larger and larger, which puts higher requirements on the tunnel support equipment on both sides of the mining area. If the support equipment of the tunnels on both sides is not upgraded, the tunnel surrounding rock environment will be complicated, making it difficult to achieve effective protection for personnel and equipment, and it will be inconvenient for operators to transport them conveniently, which may affect the efficiency of normal coal mining work.

[0029] When using this device, the operator first connects the front frame 1 to the rear of the middle frame 2 through the connector 28, and then connects the rear frame 4 to the front of the middle frame 2 through the connector assembly 3. Then, the lifting action of the lifting jack 15 will cause the load-bearing plate 14 to move up and down, thereby providing support. The group of brackets is usually arranged in a single-front and double-back manner using the push beam 16, the connector assembly 3, the connector 28, and the push jack 27. The brackets are moved forward and backward by the hydraulic pressure of the push jack 27. When the stress of the roadway changes, the double-row brackets in the last row can be converted to a single-row bracket according to the required support conditions of the roadway and placed in the last row of the bracket group, thereby converting the five bracket groups into six bracket groups. The push beam 16 can connect two brackets to increase the support width and improve the working resistance. Alternatively, a single bracket can be connected to narrow the bracket width, making it easier to transport. This makes it suitable for different roadway surrounding rock environments and effectively protects personnel and equipment. It can also be arranged and combined to facilitate transportation and installation.

[0030] Example 2:

[0031] Please refer to Figure 4 - Figure 5As shown, a movable frame 11 is provided at the top of the connecting rod 9 through a second pin 10, and a fixed frame 13 is provided above the inner wall of the movable frame 11 through a third pin 12, and the number of the fixed frames 13 is four, and the upper surfaces of the four fixed frames 13 are fixedly connected with a load-bearing plate 14, and the number of the load-bearing plates 14 is two, and the lower surfaces of the two load-bearing plates 14 are provided with a lifting jack 15, and the number of the lifting jack 15 is four, and the connecting assembly 3 includes a push beam 16, and the middle position of the upper surface of the push beam 16 is fixedly connected with a square fixing groove 17, and the number of the square fixing grooves 17 is two, and the front position of the upper surface of the push beam 16 is provided with a threaded limit groove 18 , a limit frame 19 is provided in the middle position in front of the push beam 16, and a square groove 20 is opened on the inner wall of the limit frame 19, and a reinforcing clip 21 is provided on the inner wall of the square groove 20, and the number of the reinforcing clips 21 is two, and the two reinforcing clips 21 are threadedly connected to a threaded fixing rod 22 on one side away from the limit frame 19. Two limit frames 23 are provided on the left and right sides of the front of the push beam 16, and a card block 24 is provided inside the limit frame 19. A square block 25 is inserted at the bottom position of the inner wall of the card block 24. Two circular plates 26 are fixedly connected to the front of the two limit frames 23, and a push jack 27 is fixedly connected to the middle position in front of the two circular plates 26;

[0032] In the prior art, it is also troublesome for operators to disassemble the device, requiring a lot of manpower to disassemble the rear frame 4 and then reinstall the rear frame 4, which changes the five sets of brackets into six sets of brackets, thereby increasing the workload of the operators and reducing practicality;

[0033] When the operator uses the connecting assembly 3 to disassemble the rear frame 4, the hydraulic pressure of the pushing jack 27 is used to move the left rear frame 4. After the pushing jack 27 is moved, the operator removes the square block 25 from the lower surface of the clamping block 24, and then rotates the threaded fixing rods 22 on both sides of the pushing beam 16, removes the threaded fixing rods 22 from both sides of the pushing beam 16, and then removes the clamping block 24 on the upper surface of the reinforcing clamp 21, and moves the right rear frame 4 to the middle position of the pushing beam 16. The operator then inserts the clamping block 24 through the limiting frame 23, the reinforcing clamp 21 and the pushing beam 16, and then uses the square block 25 for limiting. After the right rear frame 4 is fixed in front of the middle frame 2, the operator moves the left rear frame 4 to the back of the right rear frame 4 for fixing, thereby avoiding the operator consuming a lot of manpower to disassemble and shift the rear frame 4, reducing the operator's workload, while also improving the operator's work efficiency, simplifying the entire disassembly process, and improving practicality.

[0034] The specific working process of the present invention is as follows:

[0035] When the operator uses this device to operate, he first connects the front frame 1 to the rear of the middle frame 2 through the connector 28, and then connects the rear frame 4 to the front of the middle frame 2 through the connector assembly 3. Then, the lifting action of the lifting jack 15 will cause the load-bearing plate 14 to move up and down, thereby providing support. This group of brackets is usually arranged in a single-front and double-rear manner, using the push beam 16, connector assembly 3, connector 28 and push jack 27. The brackets are moved forward and backward by the hydraulic pressure of the push jack 27. When the stress of the roadway changes, the double-row brackets in the last row can be converted to single-row brackets according to the support required by the roadway and placed in the last row of the bracket group, thereby turning five groups of brackets into six groups of brackets. The push beam 16 can connect two brackets.

[0036] When the operator uses the connecting assembly 3 to disassemble the rear frame 4, the left rear frame 4 is moved by the hydraulic pressure of the pushing jack 27. After the moving of the frame by the pushing jack 27, the operator removes the square block 25 from the lower surface of the block 24, and then rotates the threaded fixing rods 22 on both sides of the pushing beam 16, removes the threaded fixing rods 22 from both sides of the pushing beam 16, and then removes the block 24 on the upper surface of the reinforcing clip 21, and moves the right rear frame 4 to the middle position of the pushing beam 16. The operator then inserts the block 24 through the limiting frame 23, the reinforcing clip 21 and the pushing beam 16, and then uses the square block 25 for limiting. After fixing the right rear frame 4 in front of the middle frame 2, the operator moves the left rear frame 4 to the back of the right rear frame 4 for fixing.

[0037] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A variable arrangement large working resistance ultra-high advance hydraulic support, comprising a front frame (1), characterized in that: A middle frame (2) is provided at the top position in front of the front frame (1) via a connector (28), and the number of the middle frames (2) is three, and a rear frame (4) is provided at the bottom position in front of the middle frame (2) via a connecting assembly (3); The rear frame (4) includes a bottom plate (5), and the number of the bottom plates (5) is two, and the front of the upper surface of the two bottom plates (5) is fixedly connected with a support frame (6), and the number of the support frames (6) is four, and the bottom position in front of the two bottom plates (5) is fixedly connected with a fixed plate (7), and the interior of the four support frames (6) is provided with a pin shaft (8), and the outer surface of the pin shaft (8) is provided with a connecting rod (9).

2. The variable arrangement large working resistance ultra-high advance hydraulic support according to claim 1 is characterized in that: A movable frame (11) is provided at the top end of the connecting rod (9) via a second pin shaft (10), and a fixed frame (13) is provided above the inner wall of the movable frame (11) via a third pin shaft (12), and the number of the fixed frames (13) is four.

3. The variable arrangement large working resistance ultra-high advance hydraulic support according to claim 2 is characterized in that: The upper surfaces of the four fixing frames (13) are fixedly connected with load-bearing plates (14), and the number of the load-bearing plates (14) is two.

4. The variable arrangement large working resistance ultra-high advance hydraulic support according to claim 3 is characterized in that: The lower surfaces of the two bearing plates (14) are provided with lifting jacks (15), and the number of the lifting jacks (15) is four.

5. The variable arrangement large working resistance ultra-high advance hydraulic support according to claim 3 is characterized in that: The connecting assembly (3) comprises a sliding beam (16), a square fixing groove (17) is fixedly connected to the middle position of the upper surface of the sliding beam (16), and the number of the square fixing grooves (17) is two, and a threaded limiting groove (18) is provided at the front position of the upper surface of the sliding beam (16).

6. The variable arrangement large working resistance ultra-high advance hydraulic support according to claim 5, characterized in that: A limiting frame (19) is provided in the middle position in front of the push beam (16), a square groove (20) is provided on the inner wall of the limiting frame (19), and a reinforcing clip (21) is provided on the inner wall of the square groove (20), and the number of the reinforcing clips (21) is two, and the two reinforcing clips (21) are threadedly connected to a threaded fixing rod (22) on one side away from the limiting frame (19), and two limiting frames (23) are provided on the left and right sides in front of the push beam (16).

7. The variable arrangement large working resistance ultra-high advance hydraulic support according to claim 6, characterized in that: A clamping block (24) is provided inside the first limiting frame (19), and a square block (25) is inserted at the bottom position of the inner wall of the clamping block (24). Two circular plates (26) are fixedly connected to the front of the two second limiting frames (23), and a push jack (27) is fixedly connected to the middle position in front of the two circular plates (26).

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