Coal mine tunneling supporting device

Abstract

The invention relates to the technical field of tunneling supporting, and provides a coal mine tunneling supporting device which comprises two supporting frames, a plurality of supporting rods and a plurality of supporting rods. The belt wheels are rotationally arranged on the left side and the right side of each supporting frame; the number of the conveying belts is two, the conveying belts are circularly and rotationally arranged on the peripheries of the two supporting frames, and the conveying belts are wound on the two belt wheels on the same side; the supporting rollers are arranged, the two sides of each supporting roller are arranged on the conveying belts on the two sides correspondingly, and the supporting rollers are annularly distributed along the conveying belts at intervals; the adjusting frame is located between the two supporting frames and arranged in a lifting mode; the number of the adjusting wheels is two, the two adjusting wheels are arranged at the left end and the right end of the adjusting frame correspondingly, and the adjusting wheels abut against the conveying belt and are used for tensioning the conveying belt. By means of the technical scheme, the problem that existing supporting equipment may be scratched or collided during translation is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunneling support, and in particular to a coal mine tunneling support device. Background Art

[0002] On the coal mine excavation working face, mobile support equipment needs to be installed to support the top of the mine or provide cover and protection on the lower side of the mine top to prevent the gravel on the top from suddenly falling and damaging the construction equipment below or causing personal injury.

[0003] The existing self-moving mobile support equipment uses two mutually supporting and relatively moving combined structures to achieve translation. However, during the translation process, it may cause scratches or collisions on the top of the mine, affecting the translation or causing gravel to fall, which is unsafe.

[0004] Existing support equipment may have problems such as scratches or collisions during translation, which need to be solved to improve safety. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a coal mine excavation support device in response to the above-mentioned technical deficiencies, which solves the problem that the existing support equipment may be scratched or hit during translation.

[0006] The technical solution adopted by the present invention is to provide a coal mine excavation support device, comprising: There are two support frames, and the two support frames are arranged to move relative to each other in the front-to-back direction; There are a plurality of pulleys, and each support frame is rotatably provided with a pulley on both the left and right sides; There are two conveyor belts, which are cyclically arranged on the periphery of the two support frames and are wound around the two pulleys on the same side; There are a plurality of support rollers, both sides of which are respectively arranged on the conveyor belts on both sides, and the plurality of support rollers are distributed in an annular manner along the conveyor belt; An adjustment frame, located between the two support frames and arranged to be raised and lowered; There are two adjusting wheels, which are respectively arranged at the left and right ends of the adjusting frame. The adjusting wheels abut against the conveyor belt and are used to tighten the conveyor belt.

[0007] Further optimization of this technical solution also includes: A movable frame is located between the two supporting frames, the pulleys are provided on both the left and right sides of the movable frame, and the two supporting frames are both arranged to move relative to the movable frame; There are two linear drive units, and the two linear drive units are respectively used to drive the two support frames to move relative to the moving frame.

[0008] To further optimize the technical solution, there are two adjusting frames and four adjusting wheels, the movable frame is located above the two adjusting frames, and the adjusting wheels are rotatably provided on the left and right sides of each adjusting frame.

[0009] Further optimizing the technical solution, one end of the adjustment frame is rotatably arranged at the end of the support frame, and the two adjustment frames are arranged opposite to each other; further comprising: There are two protective plates, each of which is provided on the adjustment frame and is located below between the two conveyor belts.

[0010] Further optimizing the technical solution, it also includes a plurality of height adjustment components for driving the pulley and the adjusting wheel to move up and down; the height adjustment components include: A mobile seat, having travel wheels, is arranged to be moved in the mine; A lifting drive assembly is provided on the movable seat; The vertical rod has a lower end arranged on the lifting end of the lifting drive component, and an upper end rotatably sleeved with the shaft of the pulley or the shaft of the regulating wheel.

[0011] To further optimize this technical solution, the height adjustment component further includes: The lifting and positioning component is arranged on the movable seat, and the lifting end of the lifting and positioning component is close to or away from the mine ground.

[0012] To further optimize the technical solution, the support frame has a guide tube, the movable frame has a sleeve, and the sleeve and the guide tube are slidably connected.

[0013] The beneficial effects of the present invention are: 1. The conveyor belt can drive the support roller to rotate cyclically to achieve horizontal movement. There is no long-distance translation action, which greatly reduces translation scratches or collisions.

[0014] 2. The middle regulating wheel is raised and lowered, and the pulleys on both sides are relatively close to or far away, so that the horizontal movement can be achieved while keeping the conveyor belt tensioned. There is no need to set up a rotating motor to drive the pulley to rotate. The pulley is passively rotated to adapt to the tension of the conveyor belt. There is no need for the top of the coal mine to provide a large friction force. Less force is applied to the top of the coal mine, which can reduce the damage and falling of the top ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a side structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the height adjustment component structure of the present invention; Figure 4 This is a schematic diagram of the conveyor belt installation structure of the present invention; Figure 5 It is a schematic diagram of the mobile state structure of the present invention; Figure 6 For the present invention Figure 5 A side structural diagram of Explanation of the marks in the figure: 1. Support frame; 101. Guide tube; 2. Pulley; 3. Conveyor belt; 301. Support roller; 4. Adjustment frame; 401. Adjustment wheel; 402. Protective plate; 5. Moving frame; 501. Linear drive unit; 502. Sleeve; 6. Height adjustment assembly; 601. Moving seat; 602. Travel wheel; 603. Lifting drive assembly; 604. Vertical rod; 605. Lifting positioning assembly. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0018] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0019] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0020] like Figure 1-6As shown, a coal mine excavation support device includes: two support frames 1, which are arranged to move relative to each other in the front and rear directions; several pulleys 2, and each support frame 1 is rotatably provided with pulleys 2 on the left and right sides; two conveyor belts 3, which are cyclically arranged on the periphery of the two support frames 1, and the conveyor belt 3 is wound around the two pulleys 2 on the same side; several support rollers 301, which are respectively arranged on both sides of the support roller 301 on the conveyor belts 3 on both sides, and several support rollers 301 are distributed in a ring-shaped interval along the conveyor belt 3; an adjusting frame 4, which is located between the two support frames 1 and is set to rise and fall; two adjusting wheels 401, which are respectively arranged on the left and right ends of the adjusting frame 4, and the adjusting wheels 401 are in contact with the conveyor belt 3 for tensioning the conveyor belt 3.

[0021] When in use, the support roller 301 can be supported on the lower side of the mine top or located below the top to prevent large pieces of gravel from falling. When the support roller 301 supports the mine top, the conveyor belt 3 has a small amount of deformation adaptability, and the support roller 301 can relatively better support the mine top.

[0022] When forward movement is required, the front support frame 1 remains stationary, the rear support frame 1 moves forward, and the adjustment frame 4 moves downward. The conveyor belt 3 and the support roller 301 gradually separate from the mine roof from the rear, and the support roller 301 has little horizontal movement, thus reducing the impact or scratches on the raised parts of the mine roof. The rear support frame 1 then remains stationary, the front support frame 1 moves forward, and the adjustment frame 4 moves upward. The front support roller 301 moves upward and contacts the mine roof, with minimal horizontal movement, completing the forward movement.

[0023] During storage or transportation, the two support frames 1 can be in a close state, and the adjustment frame 4 is located at the lower side, occupying less space in the front and back, which is convenient for transportation and storage.

[0024] Furthermore, it also includes: a movable frame 5, located between the two support frames 1, with pulleys 2 provided on the left and right sides of the movable frame 5, and the two support frames 1 are both arranged to move relative to the movable frame 5; a linear drive unit 501, which has two, and the two linear drive units 501 are respectively used to drive the two support frames 1 to move relative to the movable frame 5.

[0025] During use, adding a mobile frame 5 between the two support frames 1 increases the relative movement distance of the two support frames 1. The pulleys 2 on the left and right sides of the mobile frame 5 can be positioned below the upper conveyor belt 3 to provide support, thereby increasing the support capacity of the conveyor belt 3 and providing more stable support from the support rollers 301. Linear drive units 501 are provided on both the front and rear sides of the mobile frame 5. The linear drive units 501 can be hydraulic components, which enable the mobile frame 5 to move closer to or away from the front support frame 1, and the rear support frame 1 to move closer to or away from the mobile frame 5.

[0026] The linear drive unit 501 is located between the annular support rollers 301, providing a certain degree of safety. A telescopic cover can be installed over the linear drive unit 501 to provide safety protection and extend its service life. Hydraulic or pneumatic components are commonly used linear drive equipment in mines and have sufficient power sources. Linear drive can also be achieved through conventional rack and pinion structures. Those skilled in the art can adapt various suitable drive methods based on existing technology.

[0027] It is understandable that a plurality of movable racks 5 may be arranged at intervals, and the movable racks 5 may be arranged to move relative to each other, thereby extending the relative movement distance between the two support racks 1 .

[0028] Furthermore, there are two adjustment racks 4 and four adjustment wheels 401 . The movable rack 5 is located above the two adjustment racks 4 . Adjustment wheels 401 are rotatably provided on the left and right sides of each adjustment rack 4 .

[0029] During use, two adjustment racks 4 are provided. When the two support racks 1 are relatively close to each other, the two adjustment racks 4 are moved to keep the conveyor belt 3 taut. Compared with one adjustment rack 4 , the lifting and lowering distance of the adjustment rack 4 can be reduced.

[0030] Furthermore, one end of the adjustment frame 4 is rotatably set at the end of the support frame 1, and the two adjustment frames 4 are arranged opposite to each other; it also includes: a protective plate 402, with two, each adjustment frame 4 is provided with a protective plate, and the protective plate is located below between the two conveyor belts 3.

[0031] When in use, the front end of the front adjustment frame 4 is rotatably arranged at the front lower end of the front support frame 1, and the rear end is provided with an adjustment wheel 401. The rear end of the rear adjustment frame 4 is rotatably arranged at the rear lower end of the rear support frame 1, and the front end is provided with an adjustment wheel 401. The two adjustment frames 4 are arranged relative to each other, and the adjustment wheel 401 can be raised and lowered by rotating the adjustment frame 4. The two adjustment frames 4 are in a split-door form, located below the two support frames 1, and can intercept the falling of gravel through the protective plate 402. The two adjustment frames 4 are in a split-door form. When gravel exists on the protective plate 402, when moving, the adjusting wheel 401 moves down, and the adjustment frame 4 flips down and opens, and the gravel is controllably discharged downward. After falling to the ground, it can be cleaned up uniformly, avoiding excessive accumulation on the protective plate 402 and accidental falling, which may cause an accident.

[0032] Furthermore, it also includes a height adjustment component 6, which has several parts and is used to drive the pulley 2 and the adjusting wheel 401 to rise and fall; the height adjustment component 6 includes: a moving seat 601, which has a walking wheel 602 and is moved in the mine; a lifting drive component 603, which is set on the moving seat 601; a vertical rod 604, the lower end of which is set at the lifting end of the lifting drive component 603, and the upper end is rotatably connected to the shaft of the pulley 2 or the shaft of the adjusting wheel 401.

[0033] When in use, the height adjustment component 6 can drive the pulley 2 or the adjusting wheel 401 to rise and fall, and at the same time form a height support so that the support roller 301 abuts against the top of the mine. The support frame 1, the adjusting frame 4 and the movable frame 5 all move horizontally, so the height adjustment component 6 can follow the movement through the movable seat 601. When performing support movement, for example, the front support frame 1 is kept stationary first, and the rear support frame 1 moves forward. The height adjustment component 6 corresponding to the front support frame 1 is lifted to press the front support frame 1 against the top of the mine and keep it stationary. The height adjustment component 6 corresponding to the rear support frame 1 is appropriately lowered in height, and the rear support frame 1 is separated from the pressurized contact with the top of the mine. The linear drive unit 501 on the movable frame 5 brings the two support frames 1 closer, so that the rear movable frame 5 moves forward. The height adjustment component 6 corresponding to the adjusting frame 4 is lowered in height, driving the adjusting frame 4 to move downward. The conveyor belt 3 remains taut, and the adjusting frame 4 also moves forward.

[0034] Without the linear drive unit 501, the front support frame 1 remains stationary, while the adjustment frame 4 moves downward, pulling down the conveyor belt 3. This causes the rear support frame 1 to move forward. However, a force must be provided by a compression spring or other means to force the two support frames 1 apart so that they can move toward each other in a stable and controllable manner. The height adjustment assembly 6 moves in conjunction with the corresponding support frame 1, movable frame 5, or adjustment frame 4. The installation of the linear drive unit 501 allows for more stable and controllable movement of the support frame 1.

[0035] The movable base 601 can independently and stably move, maintain the vertical arrangement of the lifting drive assembly 603, and provide sufficient gravity to facilitate the height adjustment assembly 6 to pull down the conveyor belt 3 via the adjustment wheel 401. The coordination between the lifting and lowering of the adjustment wheel 401 and the relative movement of the support frame 1 can be controlled by a program, which can be implemented by those skilled in the art.

[0036] Furthermore, the height adjustment component 6 further includes: a lifting and positioning component 605, which is arranged on the moving seat 601, and the lifting end of the lifting and positioning component 605 is close to or away from the mine ground.

[0037] During use, the lifting end of the lifting and positioning assembly 605 moves downward and contacts the mine floor, thereby lifting the travel wheels 602 of the mobile group. When positioning is required, this provides stable positioning capability and reduces downward pressure damage to the travel wheels 602. Both the lifting and positioning assembly 605 and the lifting drive assembly 603 can be hydraulic assemblies.

[0038] Furthermore, the support frame 1 has a guide tube 101 , and the movable frame 5 has a sleeve 502 , and the sleeve 502 and the guide tube 101 are slidably sleeved.

[0039] When in use, both the left and right sides of the support frame 1 can have a guide tube 101, and a sleeve 502 is set on the movable frame 5 corresponding to the guide tube 101, then the front and rear sides of the movable frame 5 have guide tubes, which are slidably sleeved with the guide tubes 101 on the front and rear support frames 1 respectively, to achieve a relatively stable connection, forming a stable support structure, and providing stable support force for the support roller 301 to abut against the top of the mine.

[0040] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A coal mine excavation support device, characterized in that: include: There are two support frames (1), and the two support frames (1) are arranged to move relative to each other in the front-back direction; There are a plurality of pulleys (2), and the pulleys (2) are rotatably provided on the left and right sides of each support frame (1); There are two conveyor belts (3), the conveyor belts (3) are cyclically arranged on the periphery of the two support frames (1), and the conveyor belts (3) are wound around the two pulleys (2) on the same side; There are a plurality of support rollers (301), both sides of the support rollers (301) are respectively arranged on the conveyor belt (3) on both sides, and the plurality of support rollers (301) are distributed in an annular manner along the conveyor belt (3); An adjustment frame (4) is located between the two support frames (1) and is arranged to be raised and lowered; There are two adjusting wheels (401), which are respectively arranged at the left and right ends of the adjusting frame (4). The adjusting wheels (401) abut against the conveyor belt (3) and are used to tighten the conveyor belt (3).

2. A coal mine excavation support device according to claim 1, characterized in that: Also includes: A movable frame (5) is located between the two support frames (1), the pulleys (2) are provided on both the left and right sides of the movable frame (5), and the two support frames (1) are movably arranged relative to the movable frame (5); There are two linear drive units (501), and the two linear drive units (501) are respectively used to drive the two support frames (1) to move relative to the moving frame (5).

3. A coal mine excavation support device according to claim 2, characterized in that: There are two adjustment racks (4), four adjustment wheels (401), and the movable rack (5) is located above the two adjustment racks (4). The adjustment wheels (401) are rotatably provided on the left and right sides of each adjustment rack (4).

4. A coal mine excavation support device according to claim 3, characterized in that: One end of the adjustment frame (4) is rotatably arranged at the end of the support frame (1), and the two adjustment frames (4) are arranged opposite to each other; and further comprising: There are two protective plates (402), each of which is provided on the adjustment frame (4), and the protective plate (402) is located below between the two conveyor belts (3).

5. A coal mine excavation support device according to claim 4, characterized in that: It also includes a height adjustment component (6) having a plurality of parts for driving the pulley (2) and the regulating wheel (401) to move up and down; the height adjustment component (6) includes: A movable seat (601) is provided with travel wheels (602) and is arranged to move in the mine; A lifting drive assembly (603) is arranged on the movable seat (601); The vertical rod (604) has a lower end arranged at the lifting end of the lifting drive assembly (603), and an upper end rotatably sleeved with the shaft of the pulley (2) or the shaft of the regulating wheel (401).

6. A coal mine excavation support device according to claim 5, characterized in that: The height adjustment component (6) further comprises: The lifting and positioning component (605) is arranged on the movable seat (601), and the lifting end of the lifting and positioning component (605) is close to or away from the mine ground.

7. A coal mine excavation support device according to claim 2, characterized in that: The support frame (1) has a guide tube (101), the movable frame (5) has a sleeve (502), and the sleeve (502) and the guide tube (101) are slidably sleeved.

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