Crawler-type plugging vehicle for strip-type mining roadway of coal mine

Abstract

The utility model relates to the technical field of coal mines, in particular to a crawler-type plugging vehicle for a strip-type mining roadway of a coal mine. The blocking vehicle comprises a vehicle frame main body, a liftable crawler belt arranged on the lower portion of the vehicle frame main body, a power unit arranged on the vehicle frame main body and used for providing power for the blocking vehicle and a retaining wall mechanism arranged on one side of the vehicle frame main body, and the vehicle frame main body is further provided with a propping stand column which provides support for the retaining wall mechanism and resists lateral force brought by filling paste in a roadway. The plugging vehicle can be moved to the next plugging roadway for plugging after plugging is completed, can be repeatedly used, is easy to operate, does not need an external power source or a water source, can be rapidly moved, does not need manual wall building for plugging, is rapid in plugging, greatly improves the mining roadway filling efficiency, and reduces the labor intensity of workers.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mines, in particular to a crawler-type blocking vehicle used for strip mining lanes in coal mines. Background Art

[0002] Strip mining is a coal mining method in which the coal seam area to be mined is divided into relatively regular strip shapes, one tunnel is mined, and a coal pillar is left. The tunnel is sealed at both ends after mining, and the tunnel is filled with gangue, paste, high water, etc., and the next coal pillar is mined after solidification. This mining method is suitable for "three under" (under surface water bodies, under buildings, and under railways and highways) mining, can effectively control surface subsidence, and is a green and environmentally friendly mining method.

[0003] Strip mining is to divide a coal seam area into strips along a certain direction, and then mine one strip and leave one strip, so that the remaining strip coal pillar is sufficient to support the weight of the upper covering layer, thereby reducing the surface settlement caused by mining. In order to improve resource utilization, strip mining is generally combined with filling technology. After strip mining is completed, the two ends of the mining tunnel are blocked, and gangue and paste grouting are carried out in the mining tunnel. After the filling is completed and solidified, the adjacent strip coal pillars are mined. It is particularly suitable for "three under" (under surface water bodies, under buildings, and under railways and highways) coal mining, which can effectively protect water resources, avoid surface collapse, and damage to land and buildings. Combined with the gangue filling process, mining and filling can effectively reduce the pollution of the environment by gangue accumulation, etc. It is a green and environmentally friendly mining technology.

[0004] The end of the strip mining tunnel is prone to leakage when plugging, which is one of the important difficulties affecting the mining and filling efficiency. At present, there are two ways to plug the end of the mining tunnel: the first is to plug it by artificial brick wall, and the second is to plug it with simple templates and single pillars.

[0005] The first method is the most widely used. Manual wall blocking has problems such as high labor intensity, long time consumption and low efficiency. After solidification, the brick wall cannot be moved to the next blocked tunnel. In order to facilitate tunnel transportation, the brick wall even needs to be manually dismantled. The next blocked tunnel needs to be blocked again with a wall, which seriously affects the filling efficiency and thus the efficiency of the entire mining.

[0006] The second method is to use a steel formwork in combination with a single pillar for sealing. Since the weight of the steel formwork is easily deformed, especially when the lateral pressure caused by the fluidity after paste filling is large, the formwork will deform, leak or even collapse. Dealing with the outflow of leaked slurry brings great safety hazards and greatly affects the efficiency of tunnel filling.

[0007] Therefore, it is urgent to develop a stable and reliable mining tunnel filling and plugging device that can be reused, is easy to operate, can improve the mining tunnel filling efficiency, and reduce the labor intensity of workers. Utility Model Content

[0008] The utility model aims to provide a crawler-type blocking vehicle for coal mine strip mining tunnels. The blocking vehicle is simple to operate, does not require an external power supply or water source, can move quickly, and can be reused, thereby greatly improving the filling efficiency of the mining tunnel and reducing the labor intensity of workers.

[0009] Based on the above purpose, the utility model adopts the following technical solutions:

[0010] A crawler-type blocking vehicle for use in strip mining lanes in coal mines, the blocking vehicle comprising a frame body, a liftable crawler track arranged at the lower part of the frame body, a power unit arranged on the frame body for providing power to the blocking vehicle, and a retaining wall mechanism arranged on one side of the frame body; a buttress column is also arranged on the frame body to provide support for the retaining wall mechanism and resist the lateral force caused by the filling paste in the lane.

[0011] Preferably, the supporting column is a retractable structure, with a circular top plate on the top, and anti-slip nails on the top plate, so as to support the top plate and the bottom plate of the tunnel through the blocking vehicle.

[0012] Preferably, the frame body includes a frame platform arranged above the crawler track, and the power unit includes an explosion-proof engine, a radiator, a gear pump, a hydraulic oil tank and a diesel tank arranged on the frame platform.

[0013] Preferably, the retaining wall mechanism includes a fixed retaining wall arranged on the side of the blocking vehicle, the fixed retaining wall is integrated with the frame platform, and a first-level flip retaining wall and a second-level flip retaining wall are arranged on the upper part of the fixed retaining wall, which are folded and retracted when the equipment is moving, thereby reducing the height and space occupied by the equipment when moving, and are unfolded when blocking to ensure that the tunnel entrance is tightly sealed.

[0014] Preferably, the first-level flip retaining wall and the second-level flip retaining wall are supported by the first-level flip retaining wall lateral support cylinder and the second-level flip retaining wall lateral support cylinder respectively, and the two ends of the first-level flip retaining wall lateral support cylinder are respectively hinged to the frame body and the first-level flip retaining wall, and the two ends of the second-level flip retaining wall lateral support cylinder are respectively hinged to the first-level flip retaining wall and the second-level flip retaining wall.

[0015] Preferably, the retaining wall mechanism also includes a primary side retaining wall and a secondary side retaining wall to seal the sides of the tunnel entrance, the primary side retaining wall is located on both sides of the fixed retaining wall, and the secondary side retaining wall is located above the primary side retaining wall and extends to the top of the secondary flip retaining wall.

[0016] Preferably, the first-level side retaining wall and the second-level side retaining wall are supported by a first-level side retaining wall flip cylinder and a second-level side retaining wall flip cylinder, respectively; both ends of the first-level side retaining wall flip cylinder are hinged to the frame body and the first-level side retaining wall, respectively; and both ends of the second-level side retaining wall flip cylinder are hinged to the first-level side retaining wall and the second-level side retaining wall, respectively.

[0017] Preferably, a lateral support plate is provided on the side of the frame body opposite to the retaining wall mechanism, which can provide lateral support for the retaining wall during blocking and can be retracted during walking.

[0018] Preferably, diagonal bracing mechanisms are also provided at both ends of the frame platform, which can improve the stability of the blocking vehicle in the length direction and prevent slipping in a sloping lane.

[0019] Preferably, the crawler track is assembled with the guide cylinder on the frame body through a guide column. The guide column is a cylindrical structure. A telescopic cylinder is installed in the middle of the guide cylinder. The lifting and lowering of the crawler track is achieved by hydraulic power. When the equipment needs to move, the telescopic cylinder is extended, and the crawler track supports the entire equipment downward to lift it off the ground. The crawler track is used to move forward, backward, and turn. When the equipment moves to the blocking point at the entrance of the tunnel, the telescopic cylinder is moved upward, the crawler track is lifted, and the frame body is grounded for support and blocking.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model provides a crawler-type blocking vehicle for coal mine strip mining lanes, which provides a blocking device for the lane entrance in the form of a crawler-type walking blocking vehicle, which can quickly move forward and backward and turn. The crawler of the blocking vehicle is liftable. When walking, the crawler supports the entire device downward to lift it off the ground, and the crawler realizes forward, backward and turning. When moving to the blocking point of the lane entrance, the crawler is lifted, and the frame body is grounded to support and block, so that the blocking vehicle can switch freely between supporting blocking and walking. At the same time, when blocking, the retaining wall mechanism is supported by the blocking vehicle body, so that the blocking vehicle can block the lane entrance more tightly and effectively resist the lateral force impact caused by the flow of filling paste. And the blocking vehicle can be moved to the next blocking lane for blocking after the blocking is completed, and can be reused. The blocking vehicle is simple to operate, does not require an external power supply or water source, can move quickly, blocks quickly, does not require manual walling and blocking, greatly improves the filling efficiency of the mining lane, and reduces the labor intensity of workers.

[0022] The utility model also has the following beneficial effects:

[0023] 1. By setting up multiple levels of foldable retaining wall mechanisms, such as a first-level flip retaining wall, a second-level flip retaining wall, a first-level side retaining wall, and a second-level side retaining wall, the second-level flip retaining wall and the first-level flip retaining wall are folded down and retracted during travel, and the second-level side retaining wall is folded down and retracted, and then folded inward along the left and right directions along with the first-level side retaining wall, so that the blocking vehicle occupies less space when traveling, and is more convenient to travel. When traveling to the blocking point for blocking, the foldable retaining wall mechanisms are all unfolded, and the filling lane can be tightly blocked up and down and left and right, avoiding the paste outflow due to high pressure during filling;

[0024] 2. The supporting column structure set on the main frame ensures the stability of the blocking vehicle when supporting;

[0025] 3. Through the various supporting mechanisms arranged on the main body of the frame, such as lateral supporting plates, diagonal supporting mechanisms and top supporting columns, the reliability and safety of the blocking vehicle in supporting the upper and lower bottom plates of the tunnel entrance and the retaining wall mechanism when blocking the tunnel entrance are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of a crawler-type blocking vehicle used for strip mining lanes in a coal mine according to the utility model;

[0027] Figure 2 It is a front view of a crawler-type blocking vehicle used for strip mining lanes in a coal mine according to the utility model. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model is described in detail below, but the following embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] A crawler-type blocking vehicle for strip mining tunnels in coal mines, the blocking vehicle comprising a frame body 3, four liftable crawlers 4 arranged at the lower part of the frame body, a power unit arranged on the frame body for providing power to the blocking vehicle, and a retaining wall mechanism arranged on one side of the frame body, the frame body comprising a frame platform 5 arranged above the crawlers, a top support column 2 is also arranged on the frame platform, the top support column is a retractable structure, a circular top plate 1 is arranged on the top, and the top plate is provided with anti-skid nails, the top plate and bottom plate of the tunnel are supported by the blocking vehicle to ensure the stability of the equipment, and at the same time, provide reliable support for the retaining wall mechanism to resist the lateral force caused by the filling paste in the tunnel.

[0031] The power unit includes an explosion-proof diesel engine 24, a radiator 25, a gear pump 23, a hydraulic oil tank 20 and a diesel tank 26 arranged on the frame platform. The gear pump is used to drive the liftable crawler to work, drive the retaining wall mechanism and the top column to work, the explosion-proof diesel engine is used to drive the gear pump to work, the radiator is used to dissipate heat for the explosion-proof diesel engine, the diesel tank is used to supply oil to the explosion-proof diesel engine, and the hydraulic oil tank is used to pump hydraulic oil outward. The hydraulic oil tank and the diesel tank are respectively arranged at both ends of the frame body to counterweight the blocking vehicle and make the vehicle body more stable. The crawler is assembled with the guide cylinder 21 on the frame body through the guide column 22. The guide column is a cylindrical structure. A telescopic cylinder is installed in the middle of the guide cylinder. The telescopic cylinder is connected to the gear pump and the explosion-proof engine in sequence. The lifting and lowering of the crawler is realized by hydraulic power. When the equipment needs to move, the telescopic cylinder extends, and the crawler supports the whole equipment downward to lift it off the ground. The crawler is driven by the hydraulic motor to move forward, backward, and turn. When the equipment moves to the blocking point of the tunnel entrance, the telescopic cylinder moves upward, the crawler is lifted, and the frame body is grounded for support and blocking.

[0032] The retaining wall mechanism includes a fixed retaining wall 13 arranged on the side of the blocking vehicle, the fixed retaining wall is integrated with the frame platform, and a first-level flip retaining wall 17 and a second-level flip retaining wall 18 are arranged on the upper part of the fixed retaining wall. The first-level flip retaining wall and the second-level flip retaining wall are supported by a plurality of first-level flip retaining wall lateral support cylinders 14 and a plurality of second-level flip retaining wall lateral support cylinders 19, respectively. The first-level flip retaining wall lateral support cylinders are respectively hinged to the frame body and the first-level flip retaining wall at both ends, and the second-level flip retaining wall lateral support cylinders are respectively hinged to the first-level flip retaining wall and the second-level flip retaining wall at both ends. The retaining wall mechanism also includes a first-level side retaining wall 11 and a second-level side retaining wall 15, which seal the side of the tunnel entrance. The first-level side retaining wall is located on both sides of the fixed retaining wall, and the second-level side retaining wall is located above the first-level side retaining wall and extends to the top of the second-level flip retaining wall. The primary side retaining wall and the secondary side retaining wall are supported by the primary side retaining wall flipping cylinder 12 and the secondary side retaining wall flipping cylinder 16, respectively. The two ends of the primary side retaining wall flipping cylinder are respectively hinged to the frame body and the primary side retaining wall, and the two ends of the secondary side retaining wall flipping cylinder are respectively hinged to the primary side retaining wall and the secondary side retaining wall. When the equipment is moving, the primary flip retaining wall and the secondary flip retaining wall can be folded down and retracted, the secondary side retaining wall is folded down, and then folded inward along the left and right directions together with the primary side retaining wall to reduce the height and space occupied by the equipment when moving. When blocking, the primary flip retaining wall and the secondary flip retaining wall, the primary side retaining wall and the secondary side retaining wall are all unfolded to ensure the tight sealing of the tunnel entrance.

[0033] A lateral support plate 6 is provided on the side of the frame body opposite to the retaining wall mechanism, and the lateral support plate is supported by multiple lateral support cylinders 7. One end of the lateral support cylinder is hinged to the lateral support plate, and the other end is hinged to the frame body. The lateral support plate can provide lateral support for the retaining wall during blocking, and can be retracted under the action of the lateral support cylinder during walking.

[0034] A diagonal bracing mechanism 8 is also provided at both ends of the frame platform. The diagonal bracing mechanism is a drawer-type push-pull structure, including a fixed part 10 and a sliding part 9 arranged inside the diagonal bracing mechanism. A telescopic cylinder is provided inside the diagonal bracing mechanism, one end of the telescopic cylinder is connected to the fixed part, and the other end is connected to the sliding part. The sliding part of the diagonal bracing mechanism is driven to be telescopic by the telescopic cylinder, so that the diagonal bracing mechanism can be retracted when walking and extended when blocking, which can improve the stability of the blocking vehicle in the length direction and prevent slipping in a sloping lane.

[0035] The hydraulic oil tank is used to pump hydraulic oil to the above-mentioned first-level flip retaining wall lateral support cylinder, second-level flip retaining wall lateral support cylinder, first-level side retaining wall flip cylinder, second-level side retaining wall flip cylinder, lateral support cylinder and telescopic cylinder inside the diagonal bracing mechanism.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A crawler-type blocking vehicle for coal mine strip mining lanes, characterized in that: The blocking vehicle includes a frame body, a liftable crawler arranged at the lower part of the frame body, a power unit arranged on the frame body to provide power for the blocking vehicle, and a retaining wall mechanism arranged on one side of the frame body. The frame body is also provided with a supporting column to provide support for the retaining wall mechanism and resist the lateral force caused by the filling paste in the tunnel.

2. A crawler-type blocking vehicle for coal mine strip mining lanes according to claim 1, characterized in that: The supporting column is a retractable structure, with a circular top plate on the top. The top plate is provided with anti-slip nails, and the top plate and the bottom plate of the tunnel are supported by a blocking vehicle.

3. The crawler-type blocking vehicle for coal mine strip mining lane according to claim 1, characterized in that: The frame body comprises a frame platform arranged above the crawler track, and the power unit comprises an explosion-proof engine, a radiator, a gear pump, a hydraulic oil tank and a diesel tank arranged on the frame platform.

4. The crawler-type blocking vehicle for coal mine strip mining lane according to claim 1, characterized in that: The retaining wall mechanism includes a fixed retaining wall arranged on the side of the blocking vehicle, the fixed retaining wall is integrated with the frame platform, and a first-level flip retaining wall and a second-level flip retaining wall are arranged on the upper part of the fixed retaining wall. They are folded and retracted when the equipment is moving, thereby reducing the height and space occupied by the equipment when moving, and are unfolded when blocking to ensure that the tunnel entrance is tightly sealed.

5. A crawler-type blocking vehicle for coal mine strip mining lanes according to claim 4, characterized in that: The first-level flip retaining wall and the second-level flip retaining wall are supported by the first-level flip retaining wall lateral support cylinder and the second-level flip retaining wall lateral support cylinder respectively. The two ends of the first-level flip retaining wall lateral support cylinder are respectively hinged to the frame body and the first-level flip retaining wall, and the two ends of the second-level flip retaining wall lateral support cylinder are respectively hinged to the first-level flip retaining wall and the second-level flip retaining wall.

6. A crawler-type blocking vehicle for coal mine strip mining lanes according to claim 5, characterized in that: The retaining wall mechanism also includes a primary side retaining wall and a secondary side retaining wall to seal the sides of the tunnel opening. The primary side retaining wall is located on both sides of the fixed retaining wall, and the secondary side retaining wall is located above the primary side retaining wall and extends to the top of the secondary flip retaining wall.

7. A crawler-type blocking vehicle for coal mine strip mining lanes according to claim 6, characterized in that: The first-level side retaining wall and the second-level side retaining wall are supported by the first-level side retaining wall flipping cylinder and the second-level side retaining wall flipping cylinder respectively. The two ends of the first-level side retaining wall flipping cylinder are respectively hinged to the frame body and the first-level side retaining wall, and the two ends of the second-level side retaining wall flipping cylinder are respectively hinged to the first-level side retaining wall and the second-level side retaining wall.

8. The crawler-type blocking vehicle for coal mine strip mining lane according to claim 1, characterized in that: A lateral support plate is arranged on one side of the frame body opposite to the retaining wall mechanism, which can provide lateral support for the retaining wall during blocking and can be retracted during walking.

9. The crawler-type blocking vehicle for coal mine strip mining lane according to claim 3, characterized in that: Diagonal bracing mechanisms are also provided at both ends of the frame platform.

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