Underground coal mine rail transportation overturning unloading device

Abstract

The invention discloses a coal mine underground rail transportation overturning unloading device, and belongs to the technical field of coal mine mechanical transportation equipment. The turnover unloading device is suitable for turnover unloading operation of a fixed non-self-unloading mine car in an underground coal mine, consists of a power lifting device, a base fixing device and a turnover dumping device, and comprises a steel wire rope tractor, a top plate fixed pulley, a fixed base, a track, a turnover rod and a turnover rod base stand column. According to the underground coal mine rail transportation overturning unloading device, the defects that underground unloading of a conventional mine car is limited in space operation, high in cost, inconvenient to transfer and the like can be overcome, and manpower and material resources are saved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine mechanical transportation equipment, in particular to a coal mine underground rail transportation overturning and unloading device. Background Art

[0002] Under the mining method, rail transportation is still one of the mainstream underground transportation methods. Rail transportation adopts the method of railway mine car transportation, which has the advantages of mine cars that can be connected and integrated, large transportation capacity, material classification and distribution, and can realize large-angle tunnel transportation. Rail transportation often needs to carry out loading and unloading and transshipment operations of mine cars in the confined space underground. Therefore, rail transportation mine cars have high requirements for loading and unloading, transshipment and other functions.

[0003] At present, rail transport mine cars still have fixed buckets, which cannot realize the function of bucket flipping and self-unloading. To realize the flipping and self-unloading of mine cars, the existing technology often transforms and upgrades the mine cars, but the structure of the transformed mine cars is often more complicated. In harsh environments, dust, gravel and other debris will reduce the service life of fine components, limiting the scope of use of mine cars. Summary of the invention

[0004] The present invention aims to at least solve the drawbacks of the prior art that fixed mine cars cannot be flipped and unloaded, and the cost of mine car modification is high. The present invention proposes a coal mine underground rail transportation flipping and unloading device, which can expand the limitations of fixed mine cars in loading and unloading to rail transportation scenarios such as temporary construction points in underground tunnels and unloading in confined spaces.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: The present invention provides a coal mine underground rail transport overturning and unloading device, comprising a power lifting device, a base fixing device, and an overturning and tilting device; The base fixing device is a bridge track connecting two sections of underground tracks, including two steel rails and at least two load-bearing rods fixed under the steel rails; the side of the base fixing device parallel to the steel rails is connected to the power lifting device, and the other side parallel to the steel rails is connected to the overturning and tilting device; The overturning and tilting device comprises a base column and a flip shaft, wherein the lower end of the base column is fixed on the foundation, the top end of the base column is rotatably connected to the fixed end of the flip shaft, and the rotating end of the flip shaft is rigidly connected to the load-bearing base of the base fixing device; when the flip shaft droops naturally, the base fixing device is located on the foundation and docks with the two sections of underground tracks; The mine car is detachably arranged on the base fixing device.

[0006] Specifically and preferably, the base fixing device includes a first steel rail, a second steel rail, a first load-bearing rod and a second load-bearing rod; the first load-bearing rod is vertically fixed to the first rail and the second rail, and the second load-bearing rod is vertically fixed to the first rail and the second rail.

[0007] Further preferably, a first base hook is arranged on the first load-bearing rod, and a second base hook is arranged on the second load-bearing rod. The front end of the mine car is connected to the first base hook through a first side steel wire rope, and the rear end of the mine car is connected to the second base hook through a second side steel wire rope. The base fixing device is provided with a third base hook, and the third base hook is connected to the power lifting device through a traction rope.

[0008] Further preferably, the first base hooks are provided with two, which are respectively located at the two ends of the first load-bearing rod; the second base hooks are provided with two, which are respectively located at the two ends of the second load-bearing rod; and the third base hook is arranged on the rail.

[0009] Specifically preferably, the overturning and tilting device includes at least two groups of base columns and a flip shaft.

[0010] Further preferably, the overturning and tilting device also includes a flip rod, which is arranged between two adjacent groups of base columns and flip shafts, the base column is rotatably connected to the fixed end of the flip shaft, the two ends of the flip rod are rigidly connected to the rotating ends of the two flip shafts, and the flip rod is fixedly connected to the at least two load-bearing rods.

[0011] Specifically preferably, in the tipping and tilting device, the fixed end of the tipping shaft and the top end of the base column are rotatably connected via a pin.

[0012] Specifically preferably, in the overturning and tilting device, a limit pin is installed on the top of the base column to limit the flip shaft from driving the base fixing device to deviate in a direction away from the underground track.

[0013] Specifically and preferably, the power lifting device includes a traction rope, a traction device and a top plate fixed pulley. The traction rope is passed through the upper edge of the top plate fixed pulley, one end of which is wound around the rope pulley of the traction device, and the other end is connected to the steel rail on one side of the base fixing device.

[0014] The second object of the present invention is to provide a rail car that can run on the above-mentioned coal mine underground rail transportation overturning and unloading device.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The rail transport flipping and unloading device of the present invention includes a power lifting device, a base fixing device, a tipping and tilting device and a mine car. The flipping and unloading of the mine car can be realized by simply modifying the existing underground track. The overall structure of the device is simple and convenient to arrange within the restricted control, which expands the application scenario of the rail transport flipping and unloading device. The present invention simply modifies the underground track, sets the base fixing device as a bridge track connecting two sections of the underground track, and can be well connected with the original transportation track. When the device is not in use, the fixing device can also be used as a part of the transportation track for mine car transportation operations, which meets the use under various working conditions; at the same time, the present invention proposes that the power lifting device and the base fixing device are flexibly connected by a traction rope, so that the power lifting device can be adjusted and changed in the installation position according to the actual working environment. The other components are hard-connected, which is convenient for maintenance and can meet the requirements of temporary mine car relocation in various harsh environments such as coal mines and tunnels. Furthermore, the device does not require structural modification of the mine car body, and various existing mine cars can be used in conjunction with the power lifting device, base fixing device, and overturning and tilting device of the present invention. It can perform overturning and unloading operations for various self-unloading mine cars that cannot be overturned. The application range is very wide and the modification cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 2. It is a schematic plan view of a coal mine underground rail transport overturning and unloading device of an embodiment; Figure 2 2. It is a cross-sectional schematic diagram of a coal mine underground rail transportation overturning and unloading device of an embodiment; Figure 3 2. It is a schematic diagram of the lifting section of the coal mine underground rail transportation overturning and unloading device of the embodiment; Figure 4 It is a plan view of the connection of the coal mine underground rail transportation overturning and unloading device of the embodiment; Among them: 1-traction rope, 2-traction device, 3-top plate fixed pulley, 401-first base hook A, 402-second base hook, 5-third base hook, 6-second base hook A, 7-track, 701-first rail, 702-second rail, 8-first lateral wire rope, 9-second lateral wire rope, 10-first load-bearing rod, 11-second load-bearing rod, 12-first base hook B, 13-second base hook B, 14-mine car, 15-turning rod, 16-first base column, 17-second base column, 18-first turn shaft, 19-second turn shaft. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. In the description of the present invention, in the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed", "installed", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] The specific structure of the underground rail transport overturning unloading device for coal mines proposed by the present invention can be found in Figure 1 , specifically including: a power lifting device, a base fixing device, a tipping and tilting device and a mine car 14; See also Figure 2 The power lifting device mainly includes a traction device 2, a traction rope 1 and a top plate fixed pulley 3. The traction rope crosses the upper edge of the top plate fixed pulley 3, one end of which is fixed on the traction wheel of the traction device 2, and the other end bypasses the top plate fixed pulley 3 and is connected to the base fixing device.

[0019] Combination Figure 1 , Figure 2 and Figure 4 , Figure 1 is a top view of the device. Figure 2 This is a cross-sectional diagram of the device. The base fixing device is a bridge track that connects two sections of rails, specifically including two parallel sections of rails. Figure 4 , namely the first rail 701 and the second rail 702. The first rail 701 and the second rail 702 are fixed by a load-bearing rod located thereunder. From the overall structural point of view, the first rail 701 is closer to the power lifting device than the second rail 702.

[0020] In some embodiments of the present invention, the traction rope 1 can be connected to the middle part of the first rail 701 through the third base hook 5, and the traction rope 1 can also be connected to other parts of the base fixing device. When the traction rope 1 is tightened and continuously tightened, the base fixing device can be pulled off the ground.

[0021] In some embodiments of the present invention, there may be two or more load-bearing bars under the first steel rail 701 and the second steel rail 702 , as long as the rail 7 can be firmly fixed.

[0022] In some embodiments of the present invention, a first base hook A4 and a first base hook B12 are provided at both ends of the first load-bearing rod 10, a second base hook A6 and a second base hook B13 are provided at both ends of the second load-bearing rod 11, the front end of the mine car 14 is connected to the first base hook A4 and the first base hook B12 through a first side steel wire rope 8, and the rear end of the mine car 14 is connected to the second base hook A6 and the second base hook B13 through a second side steel wire rope 9; a third base hook 5 is provided on the base fixing device, and the third base hook 5 is connected to the power lifting device through a traction rope 1.

[0023] Combination Figure 1 , Figure 2 and Figure 3 , it can be seen that a flip-to-tilt device of the present invention, Figure 3 The cross-sectional diagram is a diagram of a traction rope pulling the base fixing device off the ground in the middle of the movement. It can be seen that the overturning and tilting device includes a first base column 16, a second base column 17, a second flip shaft 18 and a second flip shaft 19. Figure 3 It can be seen that the fixed end of the second flip shaft 19 is rotatably connected to the top end of the second base column 17, and the rotating end of the second flip shaft 19 is connected to the base fixing device.

[0024] In the embodiment of the present invention, a tipping and tilting device may include a base column and a flip shaft connected to the base column, or may include two or more base columns connected to the flip shaft. When there are two base columns, a flip rod 15 may be connected between the two base columns, the end of the flip rod 15 is connected to the rotating end of the flip shaft, and the load-bearing rod of the base fixing device is rigidly connected to the flip rod.

[0025] In these embodiments, the overturning and tilting device is connected to the base fixing device through the flip rod 15, and as the traction device 2 drives the traction rope 1 to pull the base fixing device off the ground, the flip rod 15 and the flip shaft are pulled up synchronously, and the flip shaft is connected to the base column through the rotating end, thereby maintaining the stability of the entire structure.

[0026] In some preferred embodiments, a limit pin is provided on the side of the base column farther from the base fixing device. The limit pin can be a damping structure of a rotating pin provided at the top of the base column, or a cross beam fixed on the column body of the base column, so as to limit the flipping shaft from driving the base fixing device to deviate in a direction away from the underground track.

[0027] In some embodiments of the present invention, the top plate fixed pulley 3 is fixed to the top of the mine tunnel through a base. In some other embodiments, a slide rail can be set on the top of the mine tunnel, and the direction of the slide rail is perpendicular to the direction in which the underground track extends. The base of the top plate fixed pulley 3 can slide infinitely along the slide rail and can stop at any position of the track. By changing the specific position of the top plate fixed pulley 3 in the horizontal direction with the mine car, the pulling degree of the traction rope 1 on the base fixing device can be controlled.

[0028] The mine car 14 used in the present invention is a conventional mine car. In some embodiments, the mine car is a U-shaped open compartment, and the curved compartment bottom is conducive to the complete dumping of the contents.

[0029] When the device proposed by the present invention is working: The power lifting device is provided with traction force by a traction rope 1 and a tractor 2. The power lifting traction rope 1 passes through the top plate fixed pulley 3 and is fixed on the third base hook 5 of the base fixing device, and the power lifting traction rope 1 is pulled and released, and the traction direction of the power lifting traction rope 1 is changed through the top plate fixed pulley 3. The power lifting traction rope 1 lifts the base fixing device, and the base fixing device is fixedly connected with the flip rod 15, the first flip shaft 18, and the second flip shaft 19 of the rotary dumping device, thereby controlling the first flip shaft 18, the second flip shaft 19 and the first base column 16, The second base column 17 are connected by a pin-type connection to realize the flipping and lifting of the mine car 14 for unloading.

[0030] The other components and operations of the coal mine underground rail transportation overturning unloading device according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail here. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purpose of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A coal mine underground rail transport overturn unloading device, characterized in that: It includes a power lifting device, a base fixing device, and a tipping and tilting device; The base fixing device is a bridge track connecting two sections of underground tracks, including two steel rails and at least two load-bearing rods fixed under the steel rails; the side of the base fixing device parallel to the steel rails is connected to the power lifting device, and the other side parallel to the steel rails is connected to the overturning and tilting device; The overturning and tilting device comprises a base column and a flip shaft, wherein the lower end of the base column is fixed on the foundation, the top end of the base column is rotatably connected to the fixed end of the flip shaft, and the rotating end of the flip shaft is rigidly connected to the load-bearing base of the base fixing device; when the flip shaft droops naturally, the base fixing device is located on the foundation and docks with the two sections of underground tracks; The mine car is detachably arranged on the base fixing device.

2. The coal mine underground rail transportation overturning and unloading device according to claim 1 is characterized in that: The base fixing device comprises a first steel rail (701), a second steel rail (702), a first load-bearing rod (10) and a second load-bearing rod (11); the first load-bearing rod (10) is vertically fixed to the first rail (701) and the second rail (702), and the second load-bearing rod (11) is vertically fixed to the first rail (701) and the second rail (702).

3. The coal mine underground rail transportation overturning and unloading device according to claim 2 is characterized in that: A first base hook is arranged on the first load-bearing rod (10), and a second base hook is arranged on the second load-bearing rod (11); the front end of the mine car is connected to the first base hook via a first side steel wire rope, and the rear end of the mine car is connected to the second base hook via a second side steel wire rope; the base fixing device is provided with a third base hook (5), and the third base hook (5) is connected to the power lifting device via a traction rope (1).

4. The coal mine underground rail transportation overturning and unloading device according to claim 1 or 3, characterized in that: The first base hooks have two, which are respectively located at the two ends of the first load-bearing rod (10); the second base hooks have two, which are respectively located at the two ends of the second load-bearing rod (11); and the third base hooks (5) are arranged on the rail.

5. The coal mine underground rail transportation overturning and unloading device according to claim 1 is characterized in that: The overturning and tilting device comprises at least two groups of base columns and a turning shaft.

6. The coal mine underground rail transportation overturning and unloading device according to claim 5 is characterized in that: The tipping and tilting device further comprises a flip rod (15), wherein the flip rod (15) is arranged between two adjacent groups of base columns and the flip shaft, the base column is rotatably connected to the fixed end of the flip shaft, the two ends of the flip rod (15) are rigidly connected to the rotating ends of the two flip shafts, and the flip rod (15) is fixedly connected to the at least two load-bearing rods.

7. The coal mine underground rail transportation overturning and unloading device according to claim 1 is characterized in that: In the tipping and tilting device, the fixed end of the tipping shaft is rotatably connected to the top end of the base column via a pin.

8. The coal mine underground rail transportation overturning and unloading device according to claim 1 is characterized in that: In the overturning and tilting device, a limit pin is installed on the top of the base column to limit the overturning shaft from driving the base fixing device to deviate in a direction away from the underground track.

9. The coal mine underground rail transportation overturning and unloading device according to claim 1 is characterized in that: The power lifting device comprises a traction rope (1), a traction device (2) and a top plate fixed pulley (3); the traction rope (1) is passed through the upper edge of the top plate fixed pulley (3), one end of which is wound around a rope wheel (201) of the traction device (2), and the other end of which is connected to a steel rail on one side of the base fixing device.

10. A rail car operated by the coal mine underground rail transportation overturning and unloading device as described in any one of claims 1 to 9.

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