Adjustable open pit coal mine stripping device

Abstract

The utility model relates to an adjustable stripping device for an open pit coal mine, which belongs to the technical field of coal mine stripping and comprises an excavator arm, a stripping component used for stripping is mounted on the outer side of the excavator arm, and a crushing component used for crushing the stripped coal mine is mounted at the bottom of the excavator arm. The crushing assembly comprises an equipment box fixed to the bottom of an excavator arm, four movable plates rotationally connected to the front face and the back face of the equipment box through rotating shafts correspondingly, a bucket fixed between the bottoms of the two movable plates on the same side, and a communicating hole formed in the top of the bucket. The second hydraulic cylinder is fixedly installed on the inner top wall of the equipment box, the two sliding rails are fixedly installed on the inner side of the equipment box, the sliding plate is fixedly installed on an output shaft of the second hydraulic cylinder, and the I-shaped steel column is fixed to the bottom of the sliding plate. According to the adjustable stripping device for the open pit coal mine, the crushing structure can be adaptively exchanged according to different mineral products.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine stripping, in particular to a stripping device for an adjustable open-pit coal mine. Background Technique

[0002] An open-pit coal mine refers to a coal seam deposited on the surface or in the shallow layer due to geographical changes. By directly open-pit mining coal, a hydraulic excavator is a multi-functional machine, which is widely used in mechanical construction such as water conservancy projects, transportation, power engineering, and mine excavation. It plays a very important role in reducing heavy physical labor, ensuring project quality, accelerating construction speed, and improving labor productivity.

[0003] According to the open-pit coal mine high-efficiency energy-saving stripping device disclosed in Chinese Patent Publication No. CN219387884U, which includes a main body of the excavation equipment, an arm is installed on the main body of the excavation equipment, the arm is movably connected with a mechanical movable arm, two docking and matching stripping buckets are symmetrically hinged at one end of the mechanical movable arm away from the arm, driving cylinders are symmetrically fixed on both sides of the mechanical movable arm, the machine shaft of the driving cylinder is connected with a driving mechanism for driving the stripping bucket to open, and a vibrating crusher is arranged at one end of the mechanical movable arm away from the arm. The machine shaft of the vibrating crusher extends between the two stripping buckets and is fixed with a sealing plate. A plurality of crushing drill rods are installed on one side of the sealing plate away from the vibrating crusher, which can drive the two stripping buckets to open and close for excavation at the end of the mechanical movable arm, and can use the crushing drill rods to crush ores, improving the efficiency of open-pit coal mine excavation and stripping, reducing the power consumption during the excavation and stripping process, and saving energy.

[0004] However, there are still certain deficiencies in the actual use of this patent. According to different minerals, the hardness of ores or materials is also different. For harder minerals and relatively loose minerals, this patent uses the same density arrangement of crushing drill rods, which is not convenient for adaptive adjustment according to different minerals, and there is a certain room for improvement in its freedom. In view of this, the present application provides a stripping device for an adjustable open-pit coal mine to solve the above problems. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a stripping device for an adjustable open-pit coal mine, which has the advantages of being able to adaptively adjust the crushing structure according to different minerals, and solves the problem that the existing stripping device is not convenient to adaptively adjust the crushing structure according to different minerals.

[0007] (2) Technical Solutions

[0008] To achieve the above object of being able to adaptively replace the crushing structure according to different minerals, the present utility model provides the following technical solutions: An adjustable surface coal mine stripping device, including an excavator arm, a stripping assembly for carrying out stripping work is installed on the outer side of the excavator arm, and a crushing assembly for crushing the stripped coal mine is installed at the bottom of the excavator arm;

[0009] The crushing assembly includes an equipment box fixed to the bottom of the excavator arm, four movable plates respectively rotatably connected to the front and back of the equipment box through a rotating shaft, a bucket fixed between the bottoms of two movable plates on the same side, a communication hole opened at the top of the bucket, a second hydraulic cylinder fixedly installed on the inner top wall of the equipment box, two slide rails fixedly installed on the inner side of the equipment box, a sliding plate fixedly installed on the output shaft of the second hydraulic cylinder, an I-shaped steel column fixed to the bottom of the sliding plate, a mounting plate fixed to the bottom of the I-shaped steel column, two trapezoidal blocks fixed to the bottom of the mounting plate, two disassembly and assembly plates respectively fixed to the left and right sides of the mounting plate, a disassembly plate abutted against the bottom of the mounting plate, two trapezoidal grooves opened at the top of the disassembly plate, a steel structure plate fixed to the bottom of the disassembly plate, and a number of crushing cone rods fixed to the bottom of the steel structure plate and distributed in a point-like manner.

[0010] Further, the stripping assembly includes two fixing plates respectively fixed to the left and right sides of the excavator arm, filling blocks fixed between the top of the fixing plate and the outer side of the excavator arm, two rotating plates fixed to the bottom of the fixing plate, a first hydraulic cylinder hinged between the opposite sides of the two corresponding rotating plates through a pin shaft, a connecting plate fixed to the output shaft of the first hydraulic cylinder, an arc-shaped pull rod hinged to the bottom of the connecting plate through a pin shaft, and a support rod fixed to the inner side of the arc-shaped pull rod.

[0011] Further, the filling block is triangular in shape, and the bottom end of the arc-shaped pull rod is hinged to the outer side of the bucket on the same side through a pin shaft.

[0012] Further, both sides of the two communication holes facing each other are open, and the I-shaped steel column is slidably connected between the inner sides of the two communication holes.

[0013] Further, a connection hole for the I-shaped steel column to slide is opened at the bottom of the equipment box, guiding grooves for the outer sides of the corresponding slide rails to be inserted and slide are opened on both the left and right sides of the sliding plate, and both the top and bottom of the guiding grooves are open.

[0014] Further, bolts are passed through the top of the disassembly and assembly plate, and threaded grooves for the corresponding bolts to be threadedly connected are opened at the top of the disassembly plate.

[0015] Further, the back surface of the trapezoidal groove is open, and the two trapezoidal grooves are respectively used for inserting and sliding two trapezoidal blocks, and the bottom end of the crushing cone rod is conical.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present utility model provides a stripping device for an adjustable open-pit coal mine, having the following beneficial effects:

[0018] For the stripping device of the adjustable open-pit coal mine, through the coordinated use of the stripping assembly on the outer side of the excavator boom and the crushing assembly at the bottom, the crushing structure can be adaptively replaced according to different minerals, so that the overall device can meet the crushing and stripping requirements of different minerals. For harder minerals, a crushing structure with a thick thickness and a large spacing can be used for crushing to facilitate the subsequent processing work. For relatively loose minerals, a crushing structure with a smaller thickness and a smaller spacing can be used for crushing, so that it can be more easily processed by the subsequent processing work, thereby improving the adaptability of the stripping device for the open-pit coal mine and effectively enhancing the practicability of the stripping device. Description of the drawings

[0019] Figure 1 It is a schematic structural diagram of the present utility model;

[0020] Figure 2 It is a cross-sectional schematic diagram of the equipment box connection structure in the structure of the present utility model;

[0021] Figure 3 It is the structure of the present utility model Figure 2 Partial enlarged schematic diagram of part A in the structure;

[0022] Figure 4 It is the structure of the present utility model Figure 2 Schematic diagram of the I-shaped steel column connection structure in the structure.

[0023] In the figure: 1 excavator boom, 200 stripping assembly, 201 fixing plate, 202 filling block, 203 rotating plate, 204 first hydraulic cylinder, 205 connecting plate, 206 arc-shaped pull rod, 207 support rod, 300 crushing assembly, 301 equipment box, 302 movable plate, 303 bucket, 304 communication hole, 305 second hydraulic cylinder, 306 slide rail, 307 sliding plate, 308 I-shaped steel column, 309 mounting plate, 310 trapezoidal block, 311 disassembly and assembly plate, 312 disassembly plate, 313 trapezoidal groove, 314 steel structure plate, 315 crushing cone rod. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 to 4 , the present invention provides a technical solution: an adjustable stripping device for open-pit coal mines, including an excavator arm 1. A stripping component 200 for carrying out stripping work is installed on the outer side of the excavator arm 1, and a crushing component 300 for crushing the stripped coal is installed at the bottom of the excavator arm 1; through the coordinated use of the stripping component 200 on the outer side of the excavator arm 1 and the crushing component 300 at the bottom, the crushing structure can be adaptively adjusted according to different minerals, so that the overall device can meet the crushing and stripping requirements of different minerals. For harder minerals, a crushing structure with a thick thickness and a large spacing can be used for crushing to facilitate subsequent processing work. For relatively loose minerals, a crushing structure with a smaller thickness and a smaller spacing can be used for crushing, so that it can be more easily processed by subsequent processing work, thereby improving the adaptability of the stripping device for open-pit coal mines and effectively enhancing the practicality of the stripping device.

[0026] It should be noted that the excavator arm 1 is connected to an open-pit coal mine excavation device, such as an excavator, and can be controlled by it. The device after the excavator arm 1 is connected to the excavator is the stripping device. The connection and control methods between the excavator arm 1 and the excavator are all technologies disclosed in the prior art, so they will not be elaborated here.

[0027] In this embodiment, the crushing component 300 is a structure for appropriately crushing the collected coal.

[0028] Such as Figure 2 、 Figure 3 and Figure 4As shown in the figure, the crushing assembly 300 includes an equipment box 301 fixed to the bottom of the excavator arm 1, four movable plates 302 rotatably connected to the front and back of the equipment box 301 through rotating shafts respectively, a bucket 303 fixed between the bottoms of two movable plates 302 on the same side, a communication hole 304 opened at the top of the bucket 303, a second hydraulic cylinder 305 fixedly installed on the inner top wall of the equipment box 301, two slide rails 306 fixedly installed on the inner side of the equipment box 301, a sliding plate 307 fixedly installed on the output shaft of the second hydraulic cylinder 305, an I-shaped steel column 308 fixed to the bottom of the sliding plate 307, a mounting plate 309 fixed to the bottom of the I-shaped steel column 308, two trapezoidal blocks 310 fixed to the bottom of the mounting plate 309, two disassembly and assembly plates 311 respectively fixed to the left and right sides of the mounting plate 309, a disassembly plate 312 abutted against the bottom of the mounting plate 309, two trapezoidal grooves 313 opened at the top of the disassembly plate 312, a steel structure plate 314 fixed to the bottom of the disassembly plate 312, and a number of crushing cone rods 315 fixed to the bottom of the steel structure plate 314 and distributed in a dot pattern.

[0029] It should be noted that one side of each of the two communication holes 304 is open, so that the two communication holes 304 can form a through hole when they are in contact. The I-shaped steel column 308 is slidably connected between the inner sides of the two communication holes 304, enabling the I-shaped steel column 308 to move normally between the inner sides of the two communication holes 304. A connection hole for the I-shaped steel column 308 to slide is opened at the bottom of the equipment box 301, allowing the I-shaped steel column 308 to normally move out from the inside of the connection hole.

[0030] In addition, guide grooves for the outer sides of the corresponding slide rails 306 to be inserted and slide are opened on both the left and right sides of the sliding plate 307, and the top and bottom of the guide grooves are both open, enabling the sliding plate 307 to slide in a guided manner between the outer sides of the two slide rails 306. Bolts are inserted through the top of the disassembly and assembly plate 311, and threaded grooves for the corresponding bolts to be threadedly connected are opened at the top of the disassembly plate 312, so that the disassembly and assembly plate 311 and the disassembly plate 312 can be connected and fixed through the cooperation between the bolts and the threaded grooves.

[0031] At the same time, the back of the trapezoidal groove 313 is open, and the two trapezoidal grooves 313 are respectively for the two trapezoidal blocks 310 to be inserted and slide, enabling the disassembly plate 312 to move to the bottom of the mounting plate 309 through the cooperation between the trapezoidal groove 313 and the trapezoidal block 310 for easy fixing. The bottom end of the crushing cone rod 315 is conical, which is convenient for crushing minerals. Among them, the distribution density and actual thickness of the crushing cone rods 315 can be customized, so as to prepare different crushing structures for replacement use.

[0032] In this embodiment, the stripping assembly 200 is a structure for stripping and collecting minerals in an open-pit coal mine.

[0033] As shown Figure 1 in FIG. Figure 1 , the stripping assembly 200 includes two fixing plates 201 respectively fixed on the left and right sides of the excavator arm 1, a filling block 202 fixed between the top of the fixing plate 201 and the outer side of the excavator arm 1, two rotating plates 203 fixed at the bottom of the fixing plate 201, a first hydraulic cylinder 204 hinged between the opposite sides of the corresponding two rotating plates 203 through a pin shaft, a connecting plate 205 fixed on the output shaft of the first hydraulic cylinder 204, an arc-shaped pull rod 206 hinged at the bottom of the connecting plate 205 through a pin shaft, and a support rod 207 fixed on the inner side of the arc-shaped pull rod 206.

[0034] It should be noted that the outer shape of the filling block 202 is triangular, which can improve the bearing and tensile capacity of the fixing plate 201 with the assistance of the filling block 202. The bottom end of the arc-shaped pull rod 206 is hinged to the outer side of the same-side bucket 303 through a pin shaft, so that the arc-shaped pull rod 206 can pull the bucket 303 to move. Furthermore, under the hinged action at the top end of the first hydraulic cylinder 204 and the hinged action at both ends of the arc-shaped pull rod 206, the bucket 303 can be normally pulled and opened.

[0035] The working principle of the above embodiment is as follows:

[0036] When strip-mining an open-pit coal mine, according to the actual hardness of the mineral, different crushing cone rods 315 are selected. The connection and fixation between the disassembly plate 311 and the removal plate 312 are cancelled, and the removal plate 312 is slid so that the trapezoidal block 310 is moved out of the corresponding trapezoidal groove 313. Then, the selected steel structure plate 314 can be moved to the front of the removal plate 312. Next, the trapezoidal block 310 is inserted and slid into the corresponding trapezoidal groove 313. Finally, the disassembly plate 311 and the removal plate 312 are connected and fixed, and the replacement work of the crushing cone rod 315 can be completed. The excavator is driven to move to the strip-mining site, the excavator arm 1 is controlled to move, and the two first hydraulic cylinders 204 pull the corresponding connecting plates 205 to move. Under the hinged action at both ends of the arc-shaped pull rod 206, the bucket 303 can be pulled, and the two buckets 303 are opened to facilitate the collection of the mineral. After the coal is collected between the two buckets 303, the second hydraulic cylinder 305 is started to drive the sliding plate 307 to slide between the outer sides of the two slide rails 306, and drive the mounting plate 309, the removal plate 312, and the steel structure plate 314 to move through the connection of the I-shaped steel column 308, so that the crushing cone rod 315 is inserted into the coal to crack and crush it.

[0037] Compared with the prior art, the stripping and mining device of the adjustable open-pit coal mine can, through the combined use of the stripping and mining component 200 on the outer side of the excavator arm 1 and the crushing component 300 at the bottom, adaptively replace the crushing structure according to different minerals, so that the overall device can meet the crushing and stripping requirements of different minerals. For relatively hard minerals, a crushing structure with a large thickness and a large spacing can be used for crushing to facilitate subsequent processing. For relatively loose minerals, a crushing structure with a smaller thickness and a smaller spacing can be used for crushing, making it easier to be processed by subsequent processing work. Therefore, the adaptability of the stripping and mining device of the open-pit coal mine is improved, and the practicality of the stripping and mining device is effectively enhanced, solving the problem that the existing stripping and mining device is not convenient to adaptively replace the crushing structure according to different minerals.

[0038] The electrical components mentioned in the text are all electrically connected to the main controller and the power supply. The power supply is the vehicle-mounted power supply on the excavator. The provision of the power supply belongs to the common knowledge in the field. The main controller can be a conventional known device such as a PLC controller for control, which can be realized by simple programming by those skilled in the art, and all are existing publicly disclosed electrical connection technologies, so they will not be elaborated in the text.

[0039] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of another identical element in the process, method, article or device comprising the element.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An adjustable stripping device for open-pit coal mines, comprising an excavator arm (1), characterized in that: On the outer side of the excavator boom (1), a stripping component (200) for stripping work is installed, and at the bottom of the excavator boom (1), a crushing component (300) for crushing the stripped coal is installed; The crushing component (300) includes an equipment box (301) fixed to the bottom of the excavator boom (1), four movable plates (302) respectively rotatably connected to the front and back of the equipment box (301) through rotating shafts, a bucket (303) fixed between the bottoms of two of the movable plates (302) on the same side, a communication hole (304) opened at the top of the bucket (303), a second hydraulic cylinder (305) fixedly installed on the inner top wall of the equipment box (301), two slide rails (306) fixedly installed on the inner side of the equipment box (301), a sliding plate (307) fixedly installed on the output shaft of the second hydraulic cylinder (305), an I-shaped steel column (308) fixed to the bottom of the sliding plate (307), a mounting plate (309) fixed to the bottom of the I-shaped steel column (308), two trapezoidal blocks (310) fixed to the bottom of the mounting plate (309), two disassembly and assembly plates (311) respectively fixed to the left and right sides of the mounting plate (309), a disassembly plate (312) abutted against the bottom of the mounting plate (309), two trapezoidal grooves (313) opened at the top of the disassembly plate (312), a steel structure plate (314) fixed to the bottom of the disassembly plate (312), and a number of crushing cone rods (315) fixed to the bottom of the steel structure plate (314) and distributed in a dot pattern.

2. The stripping device of an adjustable open-pit coal mine according to claim 1, characterized in that: The stripping component (200) includes two fixing plates (201) respectively fixed to the left and right sides of the excavator boom (1), filling blocks (202) fixed between the tops of the fixing plates (201) and the outer side of the excavator boom (1), two rotating plates (203) fixed to the bottoms of the fixing plates (201), a first hydraulic cylinder (204) hinged between the opposite sides of the two corresponding rotating plates (203) through a pin shaft, a connecting plate (205) fixed to the output shaft of the first hydraulic cylinder (204), an arc-shaped pull rod (206) hinged to the bottom of the connecting plate (205) through a pin shaft, and a support rod (207) fixed to the inner side of the arc-shaped pull rod (206).

3. The stripping device for an adjustable open-pit coal mine according to claim 2, characterized in that: The outer shape of the filling block (202) is triangular, and the bottom end of the arc-shaped pull rod (206) is hinged to the outer side of the bucket (303) on the same side through a pin shaft.

4. The stripping device for an adjustable open-pit coal mine according to claim 1, characterized in that: Both sides of the two communication holes (304) opposite to each other are open, and the I-shaped steel column (308) is slidably connected between the inner sides of the two communication holes (304).

5. An overburden removal device for an adjustable open-pit coal mine according to claim 1, characterized in that: A connection hole for the I-shaped steel column (308) to slide is opened at the bottom of the equipment box (301), guide grooves for the outer sides of the corresponding slide rails (306) to be inserted and slide are opened on both the left and right sides of the sliding plate (307), and the top and bottom of the guide grooves are both open.

6. The stripping device for an adjustable open-pit coal mine according to claim 1, characterized in that: Bolts are passed through the tops of the disassembly and assembly plates (311), and threaded grooves for the corresponding bolts to be threadedly connected are opened at the tops of the disassembly plates (312).

7. An overburden removal device for an adjustable open-pit coal mine according to claim 1, characterized in that: The back surface of the trapezoidal groove (313) is open, and the two trapezoidal grooves (313) are respectively for inserting and sliding two trapezoidal blocks (310), and the bottom end of the crushing cone rod (315) is conical.

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