A rear scraper conveyor residual coal cleaning device of a top coal caving hydraulic support

Abstract

The application provides a residual coal cleaning device of a rear scraper conveyor of a top coal caving hydraulic support, and relates to the technical field of intelligent top coal caving image recognition equipment for coal mine working faces. The residual coal cleaning device of the rear scraper conveyor of the top coal caving hydraulic support comprises a hydraulic support connecting guide rail support, a telescopic hydraulic support, a guide rail protection shell, a sliding block driving device, a sliding block, a connecting rod and a coal pushing plate. The bottom of one side of the hydraulic support connecting guide rail support is provided with the guide rail protection shell. The middle of the bottom of one side of the hydraulic support connecting guide rail support is provided with the telescopic hydraulic support, and the telescopic hydraulic support is located on the inner wall of the guide rail protection shell. The sliding block and the coal pushing plate are connected by the connecting rod, and are used for power transmission. The coal pushing plate is rotationally connected with the guide rail protection shell, and is rotated around the end shaft of the guide rail protection shell by the connecting rod, so that the residual coal cleaning function is realized.

Description

Technical Field

[0001] This invention relates to the technical field of intelligent coal feeding image recognition equipment for coal mine working faces, specifically a residual coal cleaning device installed on the rear scraper conveyor of the top coal feeding hydraulic support. Background Technology

[0002] Intelligent coal mining is the only way for the coal industry to achieve high-quality development. Currently, in top coal caving faces, coal miners usually judge whether gangue has been discharged or estimate the amount discharged by observing the color of the coal flow on the rear scraper conveyor near the coal discharge port, and then decide whether to close the coal discharge port.

[0003] Production experience shows that, under most coal seam occurrence conditions and production environments, it is feasible and effective to identify coal and gangue by visual inspection and then control the opening and closing of the coal discharge port.

[0004] Therefore, mature image recognition algorithms can be used to replace manual labor in identifying coal and gangue, achieving the goal of reducing manpower and increasing efficiency. However, during the coal discharge process, the released top coal inevitably overflows the scraper conveyor, causing residual coal that cannot be transported to accumulate at both ends of the scraper conveyor. The residual coal accumulation on the inner side of the scraper conveyor near the hydraulic support obstructs the field of view of the image recognition intelligent camera, seriously affecting the coal and gangue identification process.

[0005] In production practice, current equipment for cleaning up coal piles focuses on recovering some coal that cannot be transported, but cannot clean up coal piles in a timely manner during the coal discharge process, and cannot be used in conjunction with image recognition smart cameras throughout the entire work process. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a residual coal cleaning device for a rear scraper conveyor installed on a top coal caving hydraulic support, which solves the problems of not being able to clean residual coal on the side of the rear scraper conveyor near the hydraulic support in a timely manner and the incompatibility of existing equipment with production equipment.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a residual coal cleaning device for a rear scraper conveyor installed on a top-coal caving hydraulic support, comprising a hydraulic support connecting guide rail bracket, a telescopic hydraulic prop, a protective shell with guide rail, a slider drive device, a slider, a connecting rod, and a coal pusher plate. The bottom of one side of the hydraulic support connecting guide rail bracket is provided with a protective shell with guide rail. A telescopic hydraulic prop is located in the middle of the bottom of one side of the hydraulic support connecting guide rail bracket, and the telescopic hydraulic prop is located on the inner wall of the protective shell with guide rail. A slider drive device is located inside the protective shell with guide rail. A slider is slidably connected to the top of the protective shell with guide rail. A connecting rod is rotatably connected to the middle of the top of the slider. A coal pusher plate is rotatably connected to one side of the top of the protective shell with guide rail, and one side of the coal pusher plate is rotatably connected to the connecting rod.

[0008] Preferably, the slider driving device includes two hydraulic columns, two column connecting rods, two universal joints, and two slider connecting rods. The bottom of each of the two hydraulic columns is fixedly connected to one side of the bottom of the inner wall of the guide rail protective shell. The other end of each of the two hydraulic columns is fixedly connected to a column connecting rod. The other end of each of the two column connecting rods is fixedly connected to a universal joint. The other end of each of the two universal joints is fixedly connected to a slider connecting rod, and the other end of each slider connecting rod is rotatably connected to the slider. The slider is driven by the slider driving device, which converts the plumb-shaped displacement of the hydraulic columns in the slider driving device into the horizontal displacement of the slider through the column connecting rods, universal joints, and slider connecting rods.

[0009] Preferably, the hydraulic support connecting guide rail bracket is used to connect to the base of the top coal caving hydraulic support, and the hydraulic support connecting guide rail bracket is connected to one end of the telescopic hydraulic prop and constrains the guide rail protective shell through the guide rail, so that the guide rail protective shell has horizontal translational freedom along the guide rail direction. The telescopic hydraulic prop is connected to the hydraulic support connecting guide rail bracket and the guide rail protective shell respectively. The horizontal distance between the main body of the equipment and the top coal caving hydraulic support is adjusted by the telescopic movement of the hydraulic prop. The guide rail protective shell is connected to the hydraulic support connecting guide rail bracket through the guide rail, and the hydraulic support connecting guide rail bracket has a slider drive device installed inside it to support and protect its internal components.

[0010] Preferably, the slider drive device is connected to the slider and drives the slider through a horizontally telescopic hydraulic column. The slider and the protective housing with guide rail cooperate through the guide rail, converting the plumb displacement of the hydraulic column in the slider drive device into a horizontal displacement along the guide rail. It is connected to the connecting rod to drive the coal pusher plate to swing around the rotating shaft. The connecting rod connects the slider and the coal pusher plate respectively and is used to transmit power. The coal pusher plate is rotatably connected to the protective housing with guide rail, and is pushed to rotate around the rotating shaft at the end of the protective housing with guide rail through the connecting rod, so as to realize the residual coal cleaning function.

[0011] Preferably, the hydraulic support connecting guide rail bracket is located in front of the protective housing with guide rail, and is connected to each other by a telescopic hydraulic support. At the same time, the hydraulic support connecting guide rail bracket should be adapted to the end of the scraper conveyor near the rear of the hydraulic support base.

[0012] Preferably, the protective housing with guide rails and the hydraulic support have guide rails that can cooperate with each other. The protective housing with guide rails is pushed horizontally by the telescopic hydraulic support to move closer to or away from the scraper conveyor to push the residual coal.

[0013] Preferably, the connecting rod is located above the slider and connects the slider and the coal pusher plate by a thread. This structure is easy to disassemble and install, and is used to transfer the kinetic energy of the slider during operation and to disassemble and store the coal pusher plate after operation, thus saving equipment space.

[0014] Preferably, the coal pusher plate is located in front of the protective shell with guide rail, and is rotatably connected to the protective shell with guide rail via a rotating shaft. The rotating shaft on the protective shell with guide rail is pushed to rotate by a connecting rod to achieve the purpose of cleaning residual coal.

[0015] Working Principle: The equipment is placed in the working area. The hydraulic support is connected to the guide rail bracket 1, which is connected to the base of the top coal caving hydraulic support. One end of the telescopic hydraulic prop 2 is connected to the guide rail, which, along with the guide rail protective shell 3, constrains the prop, giving it horizontal translational freedom along the guide rail direction. The telescopic hydraulic prop 2 connects the hydraulic support, guide rail bracket 1, and guide rail protective shell 3. The horizontal distance between the main body of the equipment and the top coal caving hydraulic support is adjusted by the telescopic movement of the hydraulic prop. The guide rail protective shell 3 connects the hydraulic support, guide rail bracket 1, and slider 5 via guide rails. A slider drive device 4 is installed inside the shell to support and protect its internal components. The slider drive device 4 connects to the slider 5, which is driven by the horizontally telescopic hydraulic column. The slider 5 and the guide rail protective shell 3 are connected by guide rails, converting the plumb displacement of the hydraulic column in the slider drive device 4 into a horizontal displacement along the guide rail. This horizontal displacement is then connected to the connecting rod 6, driving the pusher plate 7 to swing around the axis. The connecting rod 6 connects the slider 5 and the pusher plate 7, transmitting power. The coal pusher plate 7 is connected to the guide rail protective shell 3 by rotation, and the connecting rod 6 pushes it to rotate around the end shaft of the guide rail protective shell 3 to achieve the residual coal cleaning function.

[0016] This invention provides a residual coal cleaning device for a rear scraper conveyor installed on a hydraulic support for top coal caving. It has the following beneficial effects: 1. This invention improves the overall integrity of the equipment and saves space and reduces the difficulty of installation and positioning by using a hydraulic support that is adapted to the hydraulic support base to connect the guide rail support.

[0017] 2. This invention uses a telescopic hydraulic column to drive the connecting rod to make periodic movements, which can ensure that the coal pusher plate continuously cleans residual coal during operation, thereby solving the problem of residual coal piles obstructing the field of view of the intelligent image recognition camera.

[0018] 3. The protective shell with guide rails used in this invention serves both to protect internal components and guide movement, thus saving overall space in the device. Attached Figure Description

[0019] Figure 1 This is a side view of the present invention; Figure 2 This is a perspective view of the present invention; Figure 3 This is a schematic diagram of the present invention; Figure 4 This is a perspective view of the residual coal cleaning device for the rear scraper conveyor of the bracket of the present invention. Figure 5 This is a schematic diagram of the structure of the residual coal cleaning device for the rear scraper conveyor of the bracket of the present invention; Figure 6 This is a top view of the structure of the residual coal cleaning device for the rear scraper conveyor of the bracket of the present invention; Figure 7 This is a cross-sectional view of the drive device of the present invention.

[0020] Among them, 1. Hydraulic support connecting guide rail support; 2. Telescopic hydraulic support; 3. With guide rail protective shell; 4. Slider drive device; 5. Slider; 6. Connecting rod; 7. Coal pusher plate; 41. Hydraulic column; 42. Column connecting rod; 43. Universal joint; 44. Slider connecting rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example: like Figure 1-7 As shown, this embodiment of the invention provides a residual coal cleaning device for a rear scraper conveyor installed on a top coal caving hydraulic support. The device includes a hydraulic support connecting guide rail bracket 1, a telescopic hydraulic support column 2, a protective housing with guide rails 3, a slider drive device 4, a slider 5, a connecting rod 6, and a coal pusher plate 7. A protective housing with guide rails 3 is provided at the bottom of one side of the hydraulic support connecting guide rail bracket 1. A telescopic hydraulic support column 2 is located in the middle of the bottom of one side of the hydraulic support connecting guide rail bracket 1, and the telescopic hydraulic support column 2 is located on the inner wall of the protective housing with guide rails 3. A slider drive device 4 is provided inside the protective housing with guide rails 3. A slider 5 is slidably connected to the top of the protective housing with guide rails 3. A connecting rod 6 is rotatably connected to the middle of the top of the slider 5. A coal pusher plate 7 is rotatably connected to one side of the top of the protective housing with guide rails 3, and one side of the coal pusher plate 7 is rotatably connected to the connecting rod 6.

[0023] Figures 1 to 3This diagram illustrates the installation of the residual coal cleaning device for the rear scraper conveyor mounted on the hydraulic support for top coal caving, as described in this application. As shown, the residual coal cleaning device for the rear scraper conveyor mounted on the hydraulic support for top coal caving is applicable to the field of intelligent coal feeding image recognition equipment for coal mine working faces. Within the working face, the residual coal cleaning device 2 is directly installed behind the base of the hydraulic support 1, located in front of the rear scraper conveyor 3.

[0024] Figures 4 to 7 A schematic diagram of the residual coal cleaning device for a rear scraper conveyor installed on a top-coal caving hydraulic support according to this application is shown. As shown in the figure, the residual coal cleaning device for a rear scraper conveyor installed on a top-coal caving hydraulic support according to this application includes a hydraulic support connecting guide rail bracket 1, a telescopic hydraulic support 2, a protective shell with guide rail 3, a slider drive device 4, a slider 5, a connecting rod 6, and a coal pusher plate 7.

[0025] The slider drive device 4 includes two hydraulic columns 41, two column connecting rods 42, two universal joints 43, and two slider connecting rods 44. The bottom of each of the two hydraulic columns 41 is fixedly connected to one side of the bottom of the inner wall of the protective housing 3 with guide rail. The other end of each of the two hydraulic columns 41 is fixedly connected to a column connecting rod 42. The other end of each of the two column connecting rods 42 is fixedly connected to a universal joint 43. The other end of each of the two universal joints 43 is fixedly connected to a slider connecting rod 44. The other end of each slider connecting rod 44 is rotatably connected to a slider 5. The slider 5 is driven by the slider drive device 4, which converts the vertical displacement of the hydraulic columns 41 in the slider drive device 4 into the horizontal position of the slider 5 through the column connecting rods 42, universal joints 43, and slider connecting rods 44.

[0026] The hydraulic support connecting guide rail bracket 1 is used to connect to the base of the top coal caving hydraulic support. The hydraulic support connecting guide rail bracket 1 is connected to one end of the telescopic hydraulic prop 2 and constrains the guide rail protective shell 3 through the guide rail, so that the guide rail protective shell 3 has horizontal translational freedom along the guide rail direction. The telescopic hydraulic prop 2 is connected to the hydraulic support connecting guide rail bracket 1 and the guide rail protective shell 3 respectively. The horizontal distance between the main body of the equipment and the top coal caving hydraulic support is adjusted by the telescopic movement of the hydraulic prop. The guide rail protective shell 3 is connected to the hydraulic support connecting guide rail bracket 1 through the guide rail. The hydraulic support connecting guide rail bracket 1 is equipped with a slider drive device 4 inside, which is used to support and protect its internal components.

[0027] The slider drive device 4 is connected to the slider 5. The slider 5 is driven by the horizontally telescopic hydraulic column 41. The slider 5 and the protective shell 3 with guide rail cooperate through the guide rail. The plumb displacement of the hydraulic column 41 in the slider drive device 4 is converted into the horizontal displacement along the guide rail. It is connected to the connecting rod 6 to drive the coal pusher plate 7 to swing around the rotating shaft. The connecting rod 6 connects the slider 5 and the coal pusher plate 7 respectively and is used to transmit power. The coal pusher plate 7 is rotatably connected to the protective shell 3 with guide rail. The connecting rod 6 pushes it to rotate around the rotating shaft at the end of the protective shell 3 with guide rail, so as to realize the residual coal cleaning function.

[0028] The hydraulic support connecting guide rail bracket 1 is located in front of the protective housing 3 with guide rail, and is connected to each other by the telescopic hydraulic support 2. At the same time, the hydraulic support connecting guide rail bracket 1 should be adapted to the end of the scraper conveyor near the rear of the hydraulic support base.

[0029] The guide rail protective shell 3 is connected to the hydraulic support 1, which has guide rails that can be matched with each other. The guide rail protective shell 3 is pushed by the telescopic hydraulic support 2 to make horizontal displacement so as to move closer to or away from the scraper conveyor to push the residual coal.

[0030] The connecting rod 6 is located above the slider 5 and connects the slider 5 and the coal pusher plate 7 by thread. This structure is easy to disassemble and install. It is used to transfer the kinetic energy of the slider 5 during operation and to disassemble and store it after operation to put down the coal pusher plate 7, saving equipment space.

[0031] The coal pusher plate 7 is located in front of the protective housing 3 with guide rail. It is connected to the protective housing 3 with guide rail by rotating shaft. The connecting rod 6 pushes the rotating shaft on the protective housing 3 to rotate, so as to clean the residual coal.

[0032] This application discloses a residual coal cleaning device for a rear scraper conveyor installed on a top-coal caving hydraulic support. This device can be used in underground spaces, with various image recognition intelligent coal caving hydraulic supports, and is supplemented by intelligent image recognition cameras. It employs a hydraulic support connecting guide rail bracket adapted to the hydraulic support base, improving the overall integrity of the equipment and saving space and reducing installation and positioning difficulties. The use of a telescopic hydraulic column driving the connecting rod in cyclical motion ensures that the coal pusher plate continuously cleans residual coal during operation, solving the problem of residual coal piles obstructing the field of view of the intelligent image recognition camera. Its protective outer shell with guide rails serves both to protect internal components and guide movement, saving overall device space.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A residual coal cleaning device for a rear scraper conveyor installed on a hydraulic support for top coal caving, comprising a hydraulic support connecting guide rail bracket (1), a telescopic hydraulic support column (2), a protective shell with guide rail (3), a slider drive device (4), a slider (5), a connecting rod (6), and a coal pusher plate (7), characterized in that, The bottom of one side of the hydraulic support connecting guide rail bracket (1) is provided with a protective shell (3) with guide rail. The middle of the bottom of one side of the hydraulic support connecting guide rail bracket (1) is provided with a telescopic hydraulic support (2), and the telescopic hydraulic support (2) is located on the inner wall of the protective shell (3). The inside of the protective shell (3) with guide rail is provided with a slider drive device (4). The top of the protective shell (3) with guide rail is slidably connected with a slider (5). The middle of the top of the slider (5) is rotatably connected with a connecting rod (6). The top side of the protective shell (3) with guide rail is rotatably connected with a coal pusher plate (7), and one side of the coal pusher plate (7) is rotatably connected with the connecting rod (6). The slider drive device (4) includes two hydraulic columns (41), two column connecting rods (42), two universal joints (43) and two slider connecting rods (44). The bottom of the two hydraulic columns (41) is fixedly connected to one side of the bottom of the inner wall of the protective shell (3) with guide rail. The other end of the two hydraulic columns (41) is fixedly connected to the column connecting rod (42). The other end of the two column connecting rods (42) is fixedly connected to the universal joint (43). The other end of the two universal joints (43) is fixedly connected to the slider connecting rod (44). The other end of the slider connecting rod (44) is rotatably connected to the slider (5). The slider (5) is driven by the slider drive device (4). The vertical displacement of the hydraulic column (41) in the slider drive device (4) is converted into the horizontal displacement of the slider (5) through the column connecting rod (42), universal joint (43) and slider connecting rod (44). The hydraulic support connecting guide rail bracket (1) is used to connect the base of the top coal caving hydraulic support, and the hydraulic support connecting guide rail bracket (1) is connected to one end of the telescopic hydraulic prop (2) and constrained by the guide rail with the guide rail protective shell (3), so that the guide rail protective shell (3) has horizontal translational freedom along the guide rail direction. The telescopic hydraulic prop (2) is connected to the hydraulic support connecting guide rail bracket (1) and the guide rail protective shell (3) respectively. The guide rail protective shell (3) is connected to the hydraulic support connecting guide rail bracket (1) respectively through the guide rail, and a slider drive device (4) is installed inside it to support and protect its internal components. The protective housing (3) with guide rail is connected to the hydraulic support and the guide rail support (1) has guide rails that can cooperate with each other. The protective housing (3) with guide rail is pushed by the telescopic hydraulic support (2) to make horizontal displacement so as to move closer to or away from the scraper conveyor to push the residual coal.

2. The residual coal cleaning device for a rear scraper conveyor installed on a hydraulic support for top coal caving as described in claim 1, characterized in that: The slider drive device (4) is connected to the slider (5). The slider (5) and the protective shell (3) with guide rail cooperate through the guide rail to convert the plumb displacement of the hydraulic column (41) in the slider drive device (4) into the horizontal displacement along the guide rail. It is connected to the connecting rod (6) to drive the coal pusher plate (7) to swing around the rotating shaft. The connecting rod (6) is connected to the slider (5) and the coal pusher plate (7) respectively to transmit power. The coal pusher plate (7) is rotatably connected to the protective shell (3) with guide rail. It is pushed by the connecting rod (6) to rotate around the rotating shaft at the end of the protective shell (3) with guide rail to realize the residual coal cleaning function.

3. The residual coal cleaning device for a rear scraper conveyor installed on a hydraulic support for top coal caving as described in claim 1, characterized in that: The hydraulic support connecting guide rail bracket (1) is located in front of the protective shell (3) with guide rail, and is connected to each other by telescopic hydraulic support column (2). At the same time, the hydraulic support connecting guide rail bracket (1) should be adapted to the end of the scraper conveyor near the rear of the hydraulic support base.

4. The residual coal cleaning device for a rear scraper conveyor installed on a hydraulic support for top coal caving as described in claim 1, characterized in that: The connecting rod (6) is located above the slider (5) and connects the slider (5) and the coal pusher plate (7) by thread, which facilitates disassembly and installation. It is used to transmit the kinetic energy of the slider (5) during operation and to disassemble and store the coal pusher plate (7) after the operation is completed, thus saving equipment space.

5. The residual coal cleaning device for a rear scraper conveyor installed on a hydraulic support for top coal caving according to claim 1, characterized in that: The coal pusher plate (7) is located in front of the protective shell (3) with guide rail. It is connected to the protective shell (3) with guide rail by rotating shaft. The connecting rod (6) pushes the rotating shaft on the protective shell (3) to rotate to achieve the purpose of cleaning residual coal.

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