Abrasion-proof coal leakage hopper for coal mine roadway

Abstract

The utility model belongs to the technical field of coal leaking buckets, and particularly relates to a coal mine machine roadway anti-abrasion coal leaking bucket which comprises a machine roadway, a coal sliding hole, a locking opening disc and a coal leaking bucket body, an inclined bottom plate is hinged to the bottom end of the coal leaking bucket body, a fan-shaped door is rotatably connected to the side wall of the coal leaking bucket body, two traction steel wires are installed between the fan-shaped door and the inclined bottom plate, and the two traction steel wires are connected with the locking opening disc. A connecting plate is installed on the side wall of the fan-shaped door, an air cylinder is arranged on one side of the coal leaking hopper, and a connecting clamping plate is rotationally connected to the side wall of the air cylinder; by using the inclined bottom plate, the inclined surface of the inclined bottom plate is used for buffering falling coal, so that sundries such as coal and anchor rods cannot directly fall down from the coal leaking hopper at a high speed, abrasion and puncture force to a main conveying belt are reduced, damage or tearing of the belt is reduced, the service life of the main conveying belt is prolonged, and the problem that the main conveying belt cannot be damaged easily when the main conveying belt is damaged easily is solved. The frequent replacement of the belt not only increases the equipment maintenance cost, but also prolongs the production stagnation time and seriously affects the production efficiency of the coal mine.

Description

Technical Field

[0001] This utility model belongs to the field of coal hopper technology, specifically relating to a wear-resistant coal hopper for coal mine machine roadways. Background Technology

[0002] In the coal mining industry, an efficient and safe transportation system is a crucial link in ensuring normal mine production. The existing "tiger's mouth" type open-face hopper, used at the small opening of the conveyor belt head in the machine roadway, has many design and practical application defects. From a production demand perspective, with the advancement of coal mining technology and increased production capacity, current main conveyor belt systems have much stricter requirements for coal cutting at the opening, including the stability and uniformity of coal cutting, as well as the protection of the conveyor belt. However, the existing open-face hopper is no longer able to adapt to these changes.

[0003] When raw coal falls directly from the 7-meter drop point of the conveyor belt onto the main conveyor belt below, the impact force is enormous due to the significant drop. This directly leads to a sharp increase in the wear rate of the belt surface, greatly shortening its service life. Frequent belt replacements not only increase equipment maintenance costs but also prolong production downtime, severely impacting the coal mine's production efficiency. Furthermore, debris such as anchor bolts falling into the small holes can easily puncture the belt, causing belt tearing accidents. Utility Model Content

[0004] This utility model provides a wear-resistant coal hopper for coal mine machine roadways, which solves the problem of excessively fast coal falling speed leading to accelerated wear on the conveyor belt.

[0005] This utility model provides the following technical solution: it includes a machine roadway, a coal chute, a locking plate, and a coal hopper. The bottom end of the coal hopper is hinged with an inclined bottom plate. A fan-shaped door is rotatably connected to the side wall of the coal hopper. Two traction steel wires are installed between the fan-shaped door and the inclined bottom plate. A connecting plate is installed on the side wall of the fan-shaped door. A cylinder is provided on one side of the coal hopper. A connecting plate is rotatably connected to the side wall of the cylinder. The connecting plate is installed on one side of the coal hopper. The cylinder is connected to the fan-shaped door through the connecting plate.

[0006] The coal hopper is equipped with transparent observation windows on both sides, and the two transparent observation windows are symmetrically distributed. The transparent observation windows do not contact the fan-shaped door.

[0007] A buffer mechanism is provided between the cylinder and the connecting plate. The buffer mechanism includes a main sleeve and a bottom hinge. The main sleeve is installed at the bottom end of the cylinder. The connecting plate is rotatably connected to the inner wall of the bottom hinge. An inner connecting rod is fixedly connected to the top end of the bottom hinge. A limit plate is fixedly connected to the top end of the inner connecting rod. Both the inner connecting rod and the limit plate are slidably connected to the inner wall of the main sleeve. A compression spring that pushes the limit plate is installed on the inner wall of the main sleeve.

[0008] A pressure sensor is installed inside the main sleeve, and the movable end of the pressure sensor is in contact with the top of the limiting plate.

[0009] The inclined base plate is rotatably connected to a rotating shaft at its top end, and a motor corresponding to the position of the rotating shaft is installed at the bottom end of the inclined base plate. Three scraper rods are fixedly connected to the side wall of the rotating shaft, and the scraper rods are rotatably connected to the top end of the inclined base plate. The scraper rods do not contact the fan-shaped door or the traction steel wire.

[0010] The beneficial effects of this utility model are as follows: By using the inclined bottom plate, the inclined surface is used to buffer the coal falling, so that coal and debris such as anchor bolts will not fall directly from the coal hopper at high speed, thereby reducing wear and puncture force on the main conveyor belt, reducing belt damage or tearing, and improving the service life of the main conveyor belt. This solves the problem that frequent belt replacement when the main conveyor belt is easily damaged not only increases equipment maintenance costs but also causes prolonged production downtime, seriously affecting the production efficiency of the coal mine. Through the combined use of cylinders and fan-shaped gates, coal can fall into the next stage of conveying equipment at a relatively stable speed and flow rate, which can effectively reduce dust generated by the rapid falling and impact of coal. Compared with the traditional large-scale coal falling method, this control can significantly reduce the amount of dust generated, improve the air quality underground, and reduce the harm of dust to the respiratory system of workers.

[0011] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0012] Figure 1 This is a frontal cross-sectional view of the present invention.

[0013] Figure 2 This is a three-dimensional enlarged structural diagram of the coal hopper in this utility model. Figure One ;

[0014] Figure 3 This is a three-dimensional enlarged structural diagram of the coal hopper in this utility model. Figure Two ;

[0015] Figure 4 This is a three-dimensional enlarged cross-sectional schematic diagram of the buffer mechanism in this utility model.

[0016] In the diagram: 1. Machine roadway; 11. Coal chute; 12. Locking plate; 2. Coal hopper; 21. Inclined bottom plate; 22. Fan-shaped door; 221. Connecting plate; 23. Traction wire; 24. Transparent observation window; 3. Cylinder; 31. Connecting plate; 4. Buffer mechanism; 41. Main sleeve; 42. Bottom hinge; 421. Inner connecting rod; 422. Limiting plate; 43. Compression spring; 44. Pressure sensor; 5. Rotating shaft; 51. Motor; 52. Scraper. Detailed Implementation

[0017] Please see Figures 1-4 The present invention provides the following technical solution: including a machine roadway 1, a coal chute 11, a locking plate 12 and a coal hopper 2, the bottom end of the coal hopper 2 is hinged to an inclined bottom plate 21, the side wall of the coal hopper 2 is rotatably connected to a fan-shaped door 22, two traction steel wires 23 are installed between the fan-shaped door 22 and the inclined bottom plate 21, a connecting plate 221 is installed on the side wall of the fan-shaped door 22, a cylinder 3 is provided on one side of the coal hopper 2, the side wall of the cylinder 3 is rotatably connected to a connecting plate 31, the connecting plate 31 is installed on one side of the coal hopper 2, and the cylinder 3 is connected to the fan-shaped door 22 through the connecting plate 221.

[0018] In this implementation plan: the conveyor belt in machine roadway 1 feeds coal into the coal chute 11, from which it is transported to the coal hopper 2. The coal hopper 2 feeds coal from top to bottom onto the conveyor belt below, allowing the coal mined in the mine to be transported to the surface for transfer. The locking disc 12 controls the feeding speed and flow rate of coal from the coal chute 11 into the coal hopper 2. When coal needs to be transported to a small transfer device, the opening of the locking disc 12 is reduced, allowing coal to flow into the transfer device at a smaller and more stable flow rate, preventing the transfer device from overloading or clogging due to excessive coal flow. The inclined bottom plate 21 and the fan-shaped gate 22 correspond to the bottom opening of the coal hopper 2. The inclined bottom plate 21 uses its inclined surface to buffer the falling coal, preventing coal and debris such as anchor bolts from falling directly from the coal hopper 2 at high speed, thereby reducing wear and puncture force on the main conveyor belt, reducing belt damage or tearing, and improving the service life of the main conveyor belt. This solves the problem of the main conveyor belt being prone to wear and tear. When damaged, frequent belt replacements not only increase equipment maintenance costs but also prolong production downtime, seriously affecting the production efficiency of coal mines. The coal hopper 2 supports the cylinder 3 through the connecting plate 31. The cylinder 3 and the coal hopper 2 together support the fan-shaped door 22, and the cylinder 3 controls the angle adjustment of the fan-shaped door 22, so that the angle of the fan-shaped door 22 can be adjusted by two traction steel wires 23 to the inclined bottom plate 21. A gap is left between the inclined bottom plate 21 and the fan-shaped door 22 to facilitate coal discharge. In addition, during the coal loading and unloading process, the operator can slowly open the fan-shaped door 22 according to the actual situation, allowing the coal to fall into the next stage of transportation equipment at a relatively stable speed and flow rate. This can effectively reduce the dust generated by the rapid falling and impact of coal. Compared with the traditional large-scale coal dropping method, this control can significantly reduce the amount of dust generated, improve the air quality underground, and reduce the harm of dust to the respiratory system of workers.

[0019] Transparent observation windows 24 are installed on both sides of the coal hopper 2. The two transparent observation windows 24 are symmetrically distributed and do not contact the fan-shaped door 22. The transparent observation windows 24 are flush with the sides of the coal hopper 2, so that the fan-shaped door 22 and the transparent observation windows 24 will not interfere with each other. In addition, the two transparent observation windows 24 make it easy for the staff to observe the coal falling inside the coal hopper 2 in real time. In order to adjust the opening size of the locking plate 12 when there is a lot of coal and blockage is likely to occur, the coal can be stably controlled to fall.

[0020] A buffer mechanism 4 is provided between the cylinder 3 and the connecting plate 221. The buffer mechanism 4 includes a main sleeve 41 and a bottom hinge 42. The main sleeve 41 is installed at the bottom end of the cylinder 3. The connecting plate 221 is rotatably connected to the inner wall of the bottom hinge 42. An inner connecting rod 421 is fixedly connected to the top end of the bottom hinge 42. A limit plate 422 is fixedly connected to the top end of the inner connecting rod 421. Both the inner connecting rod 421 and the limit plate 422 are slidably connected to the inner wall of the main sleeve 41. A compression spring 43 is installed on the inner wall of the main sleeve 41 to push the limit plate 422 upward. The cylinder 3 uses the buffer mechanism 4 to control the connection plate 221. The main sleeve 41 and bottom hinge 42 are automatically extended and retracted through the inner connecting rod 421, the limiting plate 422, and the compression spring 43, so that the cylinder 3 can move to a certain extent in supporting the fan-shaped door 22. When the coal falls and impacts the inclined bottom plate 21 and the fan-shaped door 22, the buffering effect of the compression spring 43 causes the buffer mechanism 4 to extend and then retract as a whole. This reduces the weight and impact force exerted by the coal on the inclined bottom plate 21 and the fan-shaped door 22 when it is fed back to the cylinder 3, thereby reducing the possibility of damage to the cylinder 3 and improving its service life.

[0021] A pressure sensor 44 is installed inside the main sleeve 41. The movable end of the pressure sensor 44 contacts the top of the limit plate 422. The movable end of the pressure sensor 44 automatically adjusts to adapt as the limit plate 422 rises and falls, so that the pressure sensor 44 can sense the coal falling in the coal hopper 2 in real time. When too much coal falls at once, the pressure sensor 44 automatically feeds back information to the operation control system according to the set pressure value fluctuation range. This allows the staff to know in time when the limit plate 422 falls too low, and then adjust the coal feeding speed and flow rate to further reduce damage to the cylinder 3.

[0022] A rotating shaft 5 is rotatably connected to the top of the inclined bottom plate 21, and a motor 51 corresponding to the position of the rotating shaft 5 is installed at the bottom of the inclined bottom plate 21. Three scraper rods 52 are fixedly connected to the side wall of the rotating shaft 5. The scraper rods 52 are rotatably connected to the top of the inclined bottom plate 21. The scraper rods 52 do not contact the fan-shaped door 22 or the traction steel wire 23. The inclined bottom plate 21 supports the rotating shaft 5, the motor 51 and the scraper rods 52. The motor 51 drives the rotating shaft 5 to rotate, and the rotating shaft 5 drives the three scraper rods 52, so that the scraper rods 52 can move the residual coal on the inclined bottom plate 21, preventing the inclined bottom plate 21 and the fan-shaped door 22 from becoming blocked, which is conducive to stable material feeding.

[0023] The working principle and usage process of this utility model: The conveyor belt in the machine roadway 1 feeds coal into the coal chute 11, which then transports it into the coal hopper 2. The coal hopper 2 feeds the coal from top to bottom onto the conveyor belt below, allowing the coal mined in the mine to be transported to the surface for transfer. The inclined bottom plate 21 uses its inclined surface to buffer the falling coal, preventing coal and debris such as anchor bolts from falling directly from the coal hopper 2 at high speed, thereby reducing wear and puncture force on the main conveyor belt and reducing belt damage or tearing. When the falling coal impacts the inclined bottom plate 21 and the fan-shaped door 22, the compression spring 43 buffers the impact, causing the buffer mechanism 4 to extend and then retract as a whole. This reduces the weight and impact force exerted by the coal on the inclined bottom plate 21 and the fan-shaped door 22 when it is fed back to the cylinder 3, thus reducing the possibility of damage to the cylinder 3 and extending its service life. When the coal falls and impacts the inclined bottom plate 21 and the fan-shaped door 22, the compression spring 43 provides a buffering effect, causing the buffer mechanism 4 to extend and then retract as a whole. This reduces the weight and impact force exerted by the coal on the inclined bottom plate 21 and the fan-shaped door 22 when it is fed back to the cylinder 3, thus reducing the possibility of damage to the cylinder 3 and extending its service life. If the limit plate 422 descends too low, the operator can be notified in time and adjust the coal feeding speed and flow rate to further reduce damage to the cylinder 3.

Claims

1. A coal mine machine roadway anti-abrasion coal leakage hopper, comprising a machine roadway (1), a coal chute (11), a lock port disc (12) and a coal leakage hopper (2), characterized in that: The bottom end of the coal leakage hopper (2) is hingedly connected with an inclined bottom plate (21), the side wall of the coal leakage hopper (2) is rotatably connected with a sector door (22), two traction steel wires (23) are installed between the sector door (22) and the inclined bottom plate (21), the side wall of the sector door (22) is provided with a connecting plate (221), one side of the coal leakage hopper (2) is provided with a pneumatic cylinder (3), the side wall of the pneumatic cylinder (3) is rotatably connected with a connecting clamping plate (31), the connecting clamping plate (31) is installed on one side of the coal leakage hopper (2), and the pneumatic cylinder (3) is connected with the sector door (22) through the connecting plate (221).

2. The coal mine machine lane anti-abrasion coal leakage bucket according to claim 1, characterized in that: Both sides of the coal leakage hopper (2) are provided with transparent observation windows (24), and the two transparent observation windows (24) are symmetrically distributed, and the transparent observation windows (24) are not in contact with the sector door (22).

3. The coal mine machine lane anti-abrasion coal leakage bucket according to claim 1, characterized in that: A buffer mechanism (4) is arranged between the pneumatic cylinder (3) and the connecting plate (221), the buffer mechanism (4) comprises a main sleeve (41) and a bottom hinge (42), the main sleeve (41) is installed at the bottom end of the pneumatic cylinder (3), the connecting plate (221) is rotatably connected to the inner wall of the bottom hinge (42), the top end of the bottom hinge (42) is fixedly connected with an inner connecting rod (421), the top end of the inner connecting rod (421) is fixedly connected with a limiting plate (422), and the inner connecting rod (421) and the limiting plate (422) are slidably connected to the inner wall of the main sleeve (41), and the inner wall of the main sleeve (41) is provided with a compression spring (43) for pushing the limiting plate (422).

4. The coal mine machine lane anti-abrasion coal leakage hopper according to claim 3, characterized in that: A pressure sensor (44) is installed in the main sleeve (41), and the movable end of the pressure sensor (44) is in contact with the top end of the limiting plate (422).

5. The coal mine machine lane anti-wear coal leakage bucket according to claim 1, characterized in that: The top end of the inclined bottom plate (21) is rotatably connected with a rotating shaft (5), the bottom end of the inclined bottom plate (21) is provided with a motor (51) corresponding in position to the rotating shaft (5), the side wall of the rotating shaft (5) is fixedly connected with three scraper rods (52), the scraper rods (52) are rotatably connected to the top end of the inclined bottom plate (21), and the scraper rods (52) are not in contact with the sector door (22) and the traction steel wires (23).

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