Anti-impact supporting integrated device for coal mine tunneling

Abstract

The utility model discloses a coal mine tunneling anti-impact supporting integrated device which comprises a supporting net body, and a primary supporting structure is arranged on the supporting net body. The first-stage supporting structure comprises a plurality of supporting units which are arranged at intervals in the length direction of the supporting net body, and each supporting unit comprises a first hydraulic assembly and a second hydraulic assembly; the first hydraulic assembly comprises a first hydraulic cylinder, a piston rod of the first hydraulic cylinder is connected with a first push rod, and the end, away from the first hydraulic cylinder, of the first push rod is connected with a first mounting base arranged on the supporting net body. The second hydraulic assembly comprises a second hydraulic cylinder, a piston rod of the second hydraulic cylinder is connected with a second push rod, and the end, away from the second hydraulic cylinder, of the second push rod is connected with a second mounting base arranged on the supporting net body. A piston rod of the first hydraulic cylinder and a piston rod of the second hydraulic cylinder can move inwards or outwards at the same time to drive the supporting net body to contract inwards or expand outwards. According to the utility model, the labor intensity of operators can be reduced, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of coal mine tunneling, and relates to a tunneling device, in particular to a coal mine tunneling anti-impact supporting integrated device. BACKGROUND

[0002] Coal mine tunneling refers to a series of operation activities of breaking, loading and transporting coal seams or rock strata in the process of coal production to form new roadways or expand existing roadways, and is one of important links in coal production, and the main purpose is to create necessary space for coal mining and ensure that there are enough roadways in the mine for ventilation, transportation, drainage and safe escape; the coal mine tunneling anti-impact supporting device is a device specially designed for the process of coal mine roadway tunneling, which is used to prevent and reduce the damage of rock burst (also known as rock burst) to the roadway surrounding rock and supporting structure caused by factors such as ground pressure, blasting and mechanical operation.

[0003] In the existing coal mine tunneling supporting, the supporting mode of laying steel wire mesh is often used for protection to prevent the damage to the construction workers caused by spalling and gangue leakage and to protect the personal safety of the construction workers, but this supporting mode can improve the stability of the roadway surrounding rock, the steel wire mesh needs to be laid manually, the laying process includes drilling, inserting a steel column, binding or welding the steel wire mesh and the like, these works have high labor intensity and low efficiency, the steel wire mesh is prone to corrosion in the humid mine environment, the supporting performance of the steel wire mesh may be reduced after long-term use, and the steel wire mesh cannot be recycled after long-term use; therefore, it is urgent to develop a new supporting device for coal mine tunneling. CONTENT OF THE UTILITY MODEL

[0004] In view of the defects and deficiencies in the prior art, the utility model provides a coal mine tunneling anti-impact supporting integrated device to solve the technical problems of high labor intensity, low efficiency and poor supporting reliability of the existing supporting mode of laying steel wire mesh.

[0005] To achieve the above purpose, the utility model takes the following technical scheme:

[0006] A coal mine tunneling anti-impact supporting integrated device, comprising a supporting net body capable of stretching in the width direction thereof, a primary supporting structure is arranged on the upper surface of the supporting net body;

[0007] The primary supporting structure comprises a plurality of supporting units arranged at intervals along the length direction of the supporting net body, each supporting unit comprises a first hydraulic assembly and a second hydraulic assembly;

[0008] The first hydraulic assembly comprises a first hydraulic cylinder, a first push rod is connected to the piston rod of the first hydraulic cylinder, and the end of the first push rod away from the first hydraulic cylinder is connected with a first mounting seat arranged on the supporting net body;

[0009] The second hydraulic assembly comprises a second hydraulic cylinder, and a second push rod is connected to a piston rod of the second hydraulic cylinder, and an end of the second push rod away from the second hydraulic cylinder is connected to a second mounting seat arranged on the support net body.

[0010] The piston rod of the first hydraulic cylinder and the piston rod of the second hydraulic cylinder can simultaneously move inward or outward along the width direction of the support net body, thereby driving the support net body to contract inward or expand outward.

[0011] The utility model also has the following technical features:

[0012] Specifically, the first hydraulic assembly further comprises a first support seat arranged on the upper surface of the support net body, and the first hydraulic cylinder is arranged on the first support seat; the second hydraulic assembly further comprises a second support seat arranged on the upper surface of the support net body, and the second hydraulic cylinder is arranged on the second support seat.

[0013] Furthermore, first and second fixed plates extending along the length direction of the support net body are arranged on the two sides of the support net body, respectively, an end of the first fixed plate away from the support net body is outwardly convex to form a plurality of conical first insertion rods, and an end of the second fixed plate away from the support net body is outwardly convex to form a plurality of conical second insertion rods.

[0014] Furthermore, the utility model further comprises a secondary support structure, the secondary support structure comprises a first threaded seat arranged on the first support seat and a second threaded seat arranged on the second support seat; a first threaded rod is threadedly connected in the first threaded seat, a second threaded rod is threadedly connected in the second threaded seat, the first threaded rod is coaxially connected with the second threaded rod, and a rotating rod is sleeved at the connection position of the first threaded rod and the second threaded rod.

[0015] Furthermore, first and second abutting assemblies are arranged on the two sides of the upper surface of the support net body, respectively, the first and second abutting assemblies can abut against the first and second threaded seats, respectively, and can drive the support net body to expand outward under the pushing of the first and second threaded seats.

[0016] Furthermore, the first abutting assembly comprises first and second fixed blocks fixed on the support net body, and a first horizontal rod is arranged in each of the first and second fixed blocks, and the first horizontal rod can abut against the first threaded seat.

[0017] Furthermore, the second abutting assembly comprises third and fourth fixed blocks fixed on the support net body, and a second horizontal rod is arranged in each of the third and fourth fixed blocks, and the second horizontal rod can abut against the second threaded seat.

[0018] Further, the first support seat and the second support seat are provided with pressure sensors.

[0019] Compared with the prior art, the utility model has the beneficial technical effects that:

[0020] The utility model discloses a support structure can be used flexibly, which is composed of a support net body, a first support structure and a second support structure. In a coal mining site, the support structure is erected on a rock wall, and is quickly fixed by means of a plug rod, thereby reducing the labor intensity of on-site operators and significantly improving construction efficiency. Since the hydraulic assembly is adjustable, the bending degree of the support net can be adjusted according to different geological conditions and rock wall conditions to adapt to different support requirements. In addition, the second support structure is arranged, so that the hydraulic adjustment and the threaded seat support are combined to enhance the static stability and the support effect of the support net. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is an overall structure schematic view of the utility model device in use.

[0022] Figure 2 It is a top view of the utility model device in use.

[0023] Figure 3 It is a partial structure schematic view of the utility model device.

[0024] Figure 4 It is a partial top view of the utility model device.

[0025] The numbers in the drawing represent:

[0026] 1-support net body, 2-first support structure, 3-first fixed plate, 4-second fixed plate, 5-first plug rod, 6-second plug rod, 7-second support structure, 8-first abutting assembly, 9-second abutting assembly, 10-pressure sensor;

[0027] 21-support unit;

[0028] 71-first threaded seat, 72-second threaded seat, 73-first threaded rod, 74-second threaded rod, 75-rotating sleeve;

[0029] 81-first fixed block, 82-second fixed block, 83-first cross bar;

[0030] 91-third fixed block, 92-fourth fixed block, 93-second cross bar;

[0031] 211-first hydraulic assembly, 212-second hydraulic assembly;

[0032] 2111-first hydraulic cylinder, 2112-first push rod, 2113-first mounting seat, 2114-first support seat; 2121-second hydraulic cylinder, 2122-second push rod, 2123-second mounting seat, 2124-second support seat;

[0033] A-coal mine excavator, B-bundling rope.

[0034] The utility model will be explained in detail below in combination with the drawings and specific embodiments. Specific embodiments

[0035] According to the above technical solution, the following specific embodiments of the utility model are given, and it should be noted that the utility model is not limited to the following specific embodiments, and any equivalent transformation based on the technical solution of the application falls within the protection scope of the utility model. The utility model will be further described in detail in combination with the embodiments.

[0036] When describing the orientation, the terms "upper", "lower", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model. The utility model is described according to the orientation shown in the drawings. Figure 1

[0037] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more of the features. Without making the opposite statement, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected or integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] It should be noted that all the parts in the utility model are known parts in the art without special description.

[0039] Embodiment 1

[0040] According to the above technical solution, for example, Figures 1 to 4 ​As shown, the embodiment provides a coal mine tunneling anti-impact support integrated device, which comprises a support net body 1 capable of stretching in the width direction thereof, and a primary support structure 2 arranged on the upper surface of the support net body 1.

[0041] In the embodiment, the support net body 1 is composed of two edge frames arranged in parallel and a plurality of flexible alloy steel strips arranged in parallel between the two edge frames, and the support net body 1 is a rectangle after being unfolded.

[0042] As shown, Figure 2 The primary support structure 2 comprises a plurality of support units 21 arranged at intervals along the length direction of the support net body 1, each of the support units 21 comprises a first hydraulic assembly 211 and a second hydraulic assembly 212, the first hydraulic assembly 211 and the second hydraulic assembly 212 are oppositely arranged on the two sides of the upper surface of the support net body 1, and the first hydraulic assembly 211 and the second hydraulic assembly 212 are completely identical in structure.

[0043] Specifically, the first hydraulic assembly 211 comprises a first hydraulic cylinder 2111, a first push rod 2112 is connected to the piston rod of the first hydraulic cylinder 2111, and the end of the first push rod 2112 away from the first hydraulic cylinder 2111 is connected with a first mounting seat 2113 arranged on the support net body 1; in the embodiment, the first push rod 2112 is hinged to the first mounting seat 2113, and the first push rod 2112 can swing within a range of ±15° to adapt to the irregular surface of the rock wall.

[0044] The second hydraulic assembly 212 comprises a second hydraulic cylinder 2121, a second push rod 2122 is connected to the piston rod of the second hydraulic cylinder 2121, and the end of the second push rod 2122 away from the second hydraulic cylinder 2121 is connected with a second mounting seat 2123 arranged on the support net body 1; in the embodiment, the second push rod 2122 is hinged to the second mounting seat 2123, and the second push rod 2122 can swing within a range of ±15° to adapt to the irregular surface of the rock wall.

[0045] The piston rod of the first hydraulic cylinder 2111 and the piston rod of the second hydraulic cylinder 2121 can simultaneously move inward or outward, that is, the movement directions of the piston rod of the first hydraulic cylinder 2111 and the piston rod of the second hydraulic cylinder 2121 are opposite, which can drive the support net body 1 to contract inward or expand outward, and after the support net body 1 expands outward along the width direction thereof, the support net body 1 can be fixed on the rock wall.

[0046] As a preferred embodiment, the first hydraulic component 211 further includes a first support seat 2114 disposed on the upper surface of the support net body 1, and a first hydraulic cylinder 2111 disposed on the first support seat 2114; the second hydraulic component 212 further includes a second support seat 2124 disposed on the upper surface of the support net body 1, and a second hydraulic cylinder 2121 disposed on the second support seat 2124.

[0047] The first support seat 2114 and the second support seat 2124 are used to support the first hydraulic cylinder 2111 and the second hydraulic cylinder 2121, respectively.

[0048] In a preferred embodiment, the support mesh body 1 has a first fixing plate 3 and a second fixing plate 4 extending along its length on both sides. The end of the first fixing plate 3 away from the support mesh body 1 protrudes outward to form several conical first inserts 5, and the end of the second fixing plate 4 away from the support mesh body 1 protrudes outward to form several conical second inserts 6. The first inserts 5 and the second inserts 6 are used to insert into the rock wall.

[0049] As a preferred embodiment, the support mesh body 1 is located in... Figure 1 In the contracted state shown, the first fixing plate 3 and the second fixing plate 4 are located in the same horizontal plane.

[0050] As a preferred embodiment of this invention, such as Figure 3 As shown, it also includes a secondary support structure 7, which is used to assist in supporting the support net body 1. Specifically, the secondary support structure 7 includes a first threaded seat 71 set on the first support seat 2114 and a second threaded seat 72 set on the second support seat 2124; the first threaded seat 71 is internally threaded with a first threaded rod 73, and the second threaded seat 72 is internally threaded with a second threaded rod 74. The first threaded rod 73 and the second threaded rod 74 are coaxially connected, and a rotating sleeve 75 is sleeved at the connection between the first threaded rod 73 and the second threaded rod 74.

[0051] Preferably, the first threaded rod 73 and the second threaded rod 74 adopt an integrated connection structure, and the rotating sleeve 75 is set at the connection between the first threaded rod 73 and the second threaded rod 74 to form an integrated transmission structure. The first threaded rod 73 and the second threaded rod 74 can rotate synchronously under the drive of the rotating sleeve 75, pushing the first threaded seat 71 and the second threaded seat 72 to move axially and contact the first abutting component 8 and the second abutting component 9.

[0052] As a preferred embodiment, the rotating sleeve 75 is provided with a motor capable of driving the rotating sleeve 75 to rotate.

[0053] As a preferred arrangement of the present embodiment, the upper surface of the support net body 1 is provided with a first abutting assembly 8 and a second abutting assembly 9 on both sides respectively, the first abutting assembly 8 and the second abutting assembly 9 can abut against the first threaded seat 71 and the second threaded seat 72 respectively, and can be driven by the first threaded seat 71 and the second threaded seat 72 to expand the support net body 1 outward.

[0054] When the first abutting assembly 8 abuts against the first threaded seat 71 and the second abutting assembly 9 abuts against the second threaded seat 72, the first abutting assembly 8 and the second abutting assembly 9 are driven by the first threaded seat 71 and the second threaded seat 72 to move along the axial direction of the first threaded rod 73, and drive the support net body 1 to expand outward.

[0055] As a preferred arrangement of the present embodiment, the first abutting assembly 8 includes a first fixed block 81 and a second fixed block 82 fixed on the support net body 1, and a first cross rod 83 is arranged in the first fixed block 81 and the second fixed block 82, and the first cross rod 83 can abut against the first threaded seat 71.

[0056] As a preferred arrangement of the present embodiment, the second abutting assembly 9 includes a third fixed block 91 and a fourth fixed block 92 fixed on the support net body 1, and a second cross rod 83 is arranged in the third fixed block 91 and the fourth fixed block 92, and the second cross rod 83 can abut against the second threaded seat 72.

[0057] As a preferred arrangement of the present embodiment, the first support seat 2114 and the second support seat 2124 are provided with a pressure sensor 10. The pressure sensor 10 can communicate with a remote controller wirelessly, the remote controller can receive the data collected by the pressure sensor 10, and the display interface of the controller can display the pressure value and the pressure change curve in real time.

[0058] The use process of the device is as follows:

[0059] In the coal mining site, the supporting device is transported to the target position by the coal mining machine A, and the supporting device can be fixed by the binding rope B arranged on the top of the coal mining machine A during the transportation process. After reaching the target position, the hydraulic assembly is ensured to be stable and the power supply is connected, and when starting, the first hydraulic cylinder 2111 and the second hydraulic cylinder 2121 are started synchronously, the piston rod of the first hydraulic cylinder 2111 and the piston rod of the second hydraulic cylinder 2112 move outward at the same time, drive the supporting net body 1 to expand outward, so that it is gradually flattened, until the first inserting rod 5 and the second inserting rod 6 are inserted into the rock wall to fix the supporting net body 1;When further auxiliary support is needed, the motor drives the rotating sleeve 75 to rotate, so that the first threaded seat 71 moves axially along the first threaded rod 73 to abut against the first abutting assembly 8, and the second threaded seat 72 moves axially along the first threaded rod 234 to abut against the second abutting assembly 9, so as to increase the static support of the supporting net body 1, and further enhance the insertion strength of the first inserting rod 5 and the second inserting rod 6. During the whole working process, the pressure sensor 10 monitors the pressure data in real time, and the data is fed back to the remote controller, and once the signs of rock wall pressure loss or collapse are detected, the alarm is triggered, reminding the workers to take emergency measures in time.

[0060] The utility model discloses a kind of supporting systems, comprising supporting net body 1, first hydraulic cylinder 2111 and second hydraulic cylinder 2121, first inserting rod 5 and second inserting rod 6, first threaded seat 71 and second threaded seat 72, first abutting assembly 8 and second abutting assembly 9, pressure sensor 10 and remote controller, and first threaded rod 73 and first threaded rod 234 are arranged in supporting net body 1, and first hydraulic cylinder 2111 and second hydraulic cylinder 2121 are arranged on the top of supporting net body 1, and first inserting rod 5 and second inserting rod 6 are arranged on the bottom of supporting net body 1, and first threaded seat 71 and second threaded seat 72 are arranged on the top of supporting net body 1, and first abutting assembly 8 and second abutting assembly 9 are arranged on the bottom of supporting net body 1, and pressure sensor 10 is arranged on the top of supporting net body 1, and remote controller is arranged on the top of supporting net body 1.

[0061] The preferred embodiments of the present disclosure are described in detail in combination with the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments, and various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0062] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction, and to avoid unnecessary repetition, various possible combination manners are not described again in the present disclosure.

[0063] In addition, various different embodiments of the present disclosure can also be combined in any manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed by the present disclosure.

Claims

1. A coal mine tunneling anti-impact support integrated device, characterized in that, The utility model provides a supporting net body (1) which can stretch along its width direction, and a primary supporting structure (2) is arranged on the upper surface of the supporting net body (1). The primary supporting structure (2) comprises a plurality of supporting units (21) arranged at intervals along the length direction of the supporting net body (1), and each supporting unit (21) comprises a first hydraulic assembly (211) and a second hydraulic assembly (212). The first hydraulic assembly (211) comprises a first hydraulic cylinder (2111), and a first push rod (2112) is connected to the piston rod of the first hydraulic cylinder (2111); one end of the first push rod (2112) away from the first hydraulic cylinder (2111) is connected to a first mounting seat (2113) arranged on the supporting net body (1). The second hydraulic assembly (212) comprises a second hydraulic cylinder (2121), and a second push rod (2122) is connected to the piston rod of the second hydraulic cylinder (2121); one end of the second push rod (2122) away from the second hydraulic cylinder (2121) is connected to a second mounting seat (2123) arranged on the supporting net body (1). The piston rod of the first hydraulic cylinder (2111) and the piston rod of the second hydraulic cylinder (2121) can simultaneously move inward or outward along the width direction of the supporting net body (1), thereby driving the supporting net body (1) to contract inward or expand outward.

2. The coal mine tunneling anti-impact support integrated device of claim 1, wherein, The first hydraulic assembly (211) further comprises a first support seat (2114) arranged on the upper surface of the supporting net body (1), and the first hydraulic cylinder (2111) is arranged on the first support seat (2114); the second hydraulic assembly (212) further comprises a second support seat (2124) arranged on the upper surface of the supporting net body (1), and the second hydraulic cylinder (2121) is arranged on the second support seat (2124).

3. The coal mine tunneling anti-impact support integrated device of claim 1, wherein, First and second fixed plates (3, 4) extending along the length direction of the supporting net body (1) are arranged on both sides of the supporting net body (1); a plurality of tapered first insertion rods (5) are formed on one end of the first fixed plate (3) away from the supporting net body (1); and a plurality of tapered second insertion rods (6) are formed on one end of the second fixed plate (4) away from the supporting net body (1).

4. The coal mine tunneling anti-impact support integrated device of claim 1, wherein, The utility model further comprises a secondary supporting structure (7) comprising a first threaded seat (71) arranged on the first support seat (2114) and a second threaded seat (72) arranged on the second support seat (2124); a first threaded rod (73) is threadedly connected in the first threaded seat (71), a second threaded rod (74) is threadedly connected in the second threaded seat (72), the first threaded rod (73) and the second threaded rod (74) are coaxially connected, and a rotating sleeve (75) is arranged at the connection between the first threaded rod (73) and the second threaded rod (74).

5. The coal mine tunneling anti-impact support integrated device of claim 4, wherein, An electric motor capable of rotating the rotating sleeve (75) is arranged on the rotating sleeve (75).

6. The coal mine tunneling anti-impact support integrated device of claim 4, wherein, The upper surface of the support net body (1) is provided with a first abutting assembly (8) and a second abutting assembly (9) on both sides, respectively, the first abutting assembly (8) and the second abutting assembly (9) can abut the first threaded seat (71) and the second threaded seat (72) respectively, and can drive the support net body (1) to expand outward under the pushing of the first threaded seat (71) and the second threaded seat (72).

7. The coal mine tunneling anti-impact support integrated device of claim 6, wherein, The first abutting assembly (8) comprises a first fixed block (81) and a second fixed block (82) fixed on the support net body (1), and a first cross rod (83) is arranged in the first fixed block (81) and the second fixed block (82), and the first cross rod (83) can abut the first threaded seat (71).

8. The coal mine tunneling anti-impact support integrated device of claim 6, wherein, The second abutting assembly (9) comprises a third fixed block (91) and a fourth fixed block (92) fixed on the support net body (1), and a second cross rod (93) is arranged in the third fixed block (91) and the fourth fixed block (92), and the second cross rod (93) can abut the second threaded seat (72).

9. The coal mine tunneling anti-impact support integrated device of claim 2, wherein, The first support seat (2114) and the second support seat (2124) are provided with pressure sensors (10).

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