A coal mine mining and conveying device
By designing the coordinated movement of the screen and the fixed plate, the problem of coal chunks slipping in underground coal mines was solved, achieving stable coal transportation and improved safety, adapting to the needs of different outputs and particle sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XINWEN MINING GRP (ILI) ENERGY DEV CO LTD
- Filing Date
- 2026-04-01
- Publication Date
- 2026-06-05
AI Technical Summary
In underground coal mining operations, the problem of coal blocks slipping and rolling under inclined conveying conditions on belt conveyors leads to equipment blockage, deviation and tearing, and safety hazards. Moreover, existing equipment cannot achieve graded distribution of coal blocks, making it difficult to control the slipping and rolling of large coal blocks.
A coal mining and conveying device was designed, comprising a screen, a rotating drum, a lifting assembly, and a vibrating assembly. By screening and flattening large coal blocks, a stable material layer structure is achieved with large coal blocks at the bottom and small coal blocks at the top. The coordinated movement of the screen and the fixed plate is driven by a motor, and the screen angle and the position of the fixed plate are adjusted to ensure the stable conveying of coal blocks.
It effectively prevents large coal blocks from sliding and rolling off the conveyor belt, improves the stability and safety of coal blocks, adapts to the conveying needs of different outputs and particle sizes, and reduces equipment failures and safety hazards.
Smart Images
Figure CN122144507A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of coal mine conveying technology, and in particular to a coal mine mining and conveying device. Background Technology
[0002] In underground coal mining operations, belt conveyors are the core equipment for coal transportation. Under inclined conveying conditions, the problem of coal blocks sliding and rolling down the surface of the conveyor belt is particularly prominent, which can easily cause equipment jamming, conveyor belt deviation and tearing, and even injure workers, posing a significant safety hazard.
[0003] Ungraded coal blocks of varying sizes are mixed and piled up in a disorderly manner. If large coal blocks are on the top of the material layer, they are unstable and easily slide or roll on their own. Existing conveying devices do not have the function of classifying and distributing coal blocks, and cannot achieve a stable material layer structure with large coal blocks at the bottom and small coal blocks on top. Small coal particles cannot effectively provide pressure constraints and gap filling for large coal blocks, and the phenomenon of large coal blocks sliding and rolling is difficult to effectively suppress.
[0004] Therefore, in view of the above situation, there is an urgent need to develop a coal mine mining and conveying device to overcome the shortcomings in current practical applications. Summary of the Invention
[0005] The purpose of this invention is to provide a coal mine mining and conveying device, which aims to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: A coal mine mining and conveying device includes a conveyor, a support frame, a feed box and a distribution box. The feed box and the distribution box are fixedly connected to the support frame. A connecting groove is provided on the side wall of the feed box. A screen is hinged inside the feed box, and the other end of the screen passes through the connecting groove and is located inside the distribution box. A motor is installed on the material distribution box. A rotating drum is fixedly connected to the drive end of the motor. An oscillating component is installed between the rotating drum and the screen. The screen is driven to oscillate back and forth by the motor and the oscillating component. A lifting cylinder is installed at the bottom of the rotating drum. A fixed plate is fixedly connected to the bottom of the lifting cylinder. A lifting component is also installed on the inner wall of the rotating drum. The lifting component is connected to both the lifting cylinder and the oscillating component. The fixed plate is raised and lowered by the lifting component and the oscillating component. The downward rotation angle of the screen is adjusted by the lifting component and the oscillating component.
[0007] A further technical solution includes a mating cylinder, a drive disk, a receiving plate, a groove, a fixed rod, a spring, a connecting rod, a slider, a rotating plate, and an abutment rod. The mating cylinder is slidably sleeved on the outer wall of the rotating cylinder. The drive disk is fixedly sleeved on the outer wall of the mating cylinder. The outer edge of the drive disk is composed of multiple alternating smoothly connected convex and concave arcs. The receiving plate is also rotatably sleeved on the outer wall of the mating cylinder. A groove is formed on the receiving plate. A slider is slidably connected to the inner wall of the groove. A fixed rod is also fixedly connected to the inner wall of the groove, and the fixed rod is slidably connected to the slider. A spring is provided between the inner wall of the groove at the end furthest from the mating cylinder and the slider. A connecting rod is fixedly connected to the screen, and a rotating plate is rotatably connected between the connecting rod and the slider. An abutment rod is fixedly connected to the slider, and the outer wall of the abutment rod abuts against the outer wall of the drive disk.
[0008] A further technical solution is that multiple sets of baffles are fixedly connected to the side wall of the feed box, and sliding rods are fixedly connected between the baffles in the same set, and the sliding rods are slidably connected to the receiving plate.
[0009] A further technical solution includes a lifting assembly comprising a drive rod, a mating cylinder two, a support block, a lower limit groove, a lower limit rod, an upper limit groove, an upper limit rod, and a motor two. Multiple lower limit grooves are provided at the bottom of the rotating cylinder. A lower limit rod is fixedly connected to the outer wall of the lifting cylinder one, and the lower limit rod is slidably connected to the inner wall of the corresponding lower limit groove. Multiple upper limit grooves are also provided on the outer wall of the rotating cylinder. A mating cylinder two is slidably connected to the inner wall of the rotating cylinder, and multiple upper limit rods are fixedly connected to the outer wall of the mating cylinder two, and the upper limit rods are slidably connected to the inner wall of the corresponding upper limit groove. A support block is fixedly connected to the inner wall of the rotating cylinder. A drive rod is rotatably connected to the inner wall of the support block. A threaded groove symmetrical about the support block is provided on the outer wall of the drive rod. The thread directions of the two threaded grooves are opposite, and the threaded grooves are respectively threadedly connected to the inner walls of the lifting cylinder one and the mating cylinder two. A receiving groove is provided at the top of the inner wall of the rotating cylinder. A motor two is fixedly installed at the bottom of the receiving groove, and the driving end of the motor two is fixedly connected to the drive rod.
[0010] In a further technical solution, the height of the upper limit groove is less than the height of the lower limit groove, and the lower limit rod always abuts against the inner wall of the lower limit groove while the upper limit rod slides along the inner wall of the upper limit groove.
[0011] In a further technical solution, both the second motor and the first motor are motors with locking functions.
[0012] In a further technical solution, a side door is provided on the side wall of the material distribution box, and scale lines are provided on the outer wall of the rotating drum.
[0013] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art: 1. Coal lumps entering the feed box are screened through a screen. Small coal lumps pass through the screen and go directly onto the conveyor belt of the conveyor. Large coal lumps are transported along the surface of the screen to the distribution box and then fall onto the conveyor belt. As the conveyor belt moves, it carries the large coal lumps to the bottom of the distribution box. Small coal lumps cover the large coal lumps and fill the gaps, thus preventing the large coal lumps from sliding and rolling off the conveyor belt. 2. The rotating drum is driven by motor one. The rotating drum, through the cooperation of the lifting assembly and the lifting drum one, drives the fixed plate to rotate around the axis of the lifting drum one, thereby flattening the large coal blocks that fall onto the conveyor belt, avoiding excessive protrusion in the middle, making the material layer evenly distributed, further improving the overall stability of the coal blocks, and helping to disperse large coal blocks and reduce sliding and rolling. 3. The lifting assembly and lifting cylinder work together to drive the fixed plate to rise and fall. The lifting assembly and vibration assembly work together to adjust the downward rotation angle of the screen, thereby regulating the amount of large coal pieces entering the distribution box on the screen. The lifting and falling of the fixed plate are controlled simultaneously to achieve linkage and matching between the screening volume and the pushing height. This effectively ensures that the fixed plate is always in contact with the large coal pieces on the conveyor belt and pushes them to disperse, avoiding excessive concentration. It can control the amount of large coal pieces falling and ensure that the fixed plate is always in effective contact with the coal layer. The device is highly adaptable and can meet the conveying needs of coal pieces with different output and particle size.
[0014] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1 A three-dimensional structural diagram of the middle section; Figure 3 For the present invention Figure 2 A schematic diagram of the three-dimensional structure viewed from below; Figure 4 For the present invention Figure 2 A schematic diagram of the three-dimensional cross-section structure; Figure 5 This is a three-dimensional structural diagram of the internal structure of the material distribution box and the feeding box of the present invention; Figure 6 For the present invention Figure 5 Exploded view; Figure 7 This is a three-dimensional structural diagram of the internal structure of the material distribution box in this invention; Figure 8 For the present invention Figure 7 Explosion diagram; Figure 9 For the present invention Figure 8A three-dimensional structural diagram of the middle section; In the diagram: 1. Conveyor; 2. Support frame; 3. Feed box; 4. Distribution box; 5. Side door; 6. Connecting groove; 7. Screen; 8. Rotary drum; 9. Lifting drum one; 10. Fixed plate; 11. Vibrating assembly; 1101. Matching cylinder; 1102. Drive disc; 1103. Receiving plate; 1104. Slide groove; 1105. Fixed rod; 1106. Spring; 1107. Connecting rod; 1108. 1109. Slider; 1110. Rotating plate; 1111. Abutting rod; 1111. Baffle; 1112. Sliding rod; 12. Lifting assembly; 121. Drive rod; 122. Mating cylinder two; 123. Support block; 124. Lower limit groove; 125. Lower limit rod; 126. Upper limit groove; 127. Upper limit rod; 128. Motor two; 129. Receiving groove; 1210. U-shaped cover; 13. Motor one. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0017] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.
[0018] like Figures 1-9 As shown, this embodiment of the invention provides a coal mine conveying device, including a conveyor 1, a support frame 2, a feed box 3, and a distribution box 4. The feed box 3 and the distribution box 4 are fixedly connected to the support frame 2. A connecting groove 6 is provided on the side wall of the feed box 3. A screen 7 is hinged inside the feed box 3, and the other end of the screen 7 passes through the connecting groove 6 and is located inside the distribution box 4. A motor 13 is fitted on the distribution box 4, and a rotating drum 8 is fixedly connected to the drive end of the motor 13. The rotating drum 8 and the screen 7 are connected... An oscillating component 11 is provided between the rotating drum 8 and the vibrating component 11. The vibrating component 11 drives the screen 7 to oscillate back and forth. A lifting cylinder 9 is provided at the bottom of the rotating drum 8. A fixing plate 10 is fixedly connected to the bottom of the lifting cylinder 9. A lifting component 12 is also provided on the inner wall of the rotating drum 8. The lifting component 12 is connected to both the lifting cylinder 9 and the vibrating component 11. The fixing plate 10 is raised and lowered by the lifting component 12 and the vibrating component 11. The downward rotation angle limit of the screen 7 is adjusted by the lifting component 12 and the vibrating component 11.
[0019] In this embodiment of the invention, the coal blocks entering the feed box 3 are screened by the screen 7. Small coal blocks pass through the screen 7 and directly reach the conveyor belt of the conveyor 1, while large coal blocks are conveyed along the surface of the screen 7 to the distribution box 4 and then fall onto the conveyor belt. As the conveyor belt moves, it carries the large coal blocks to the bottom of the distribution box 4, where small coal blocks cover the large coal blocks and fill the gaps, thus preventing the large coal blocks from sliding and rolling off the conveyor belt. The rotating drum 8 is driven to rotate by the motor 13. The rotating drum 8 drives the fixed plate 10 to rotate around the axis of the lifting drum 9 through the cooperation of the lifting assembly 12 and the lifting cylinder 9, thereby flattening the large coal blocks that fall onto the conveyor belt, preventing them from protruding excessively in the middle, which helps to disperse the large coal blocks and reduce their sliding and rolling. The lifting assembly 12 and the lifting cylinder 9 work together to lift the fixed plate 10. The lifting assembly 12 and the oscillation assembly 11 work together to adjust the downward rotation angle limit of the screen 7, thus adapting to different working conditions. When it is necessary to control the amount of large coal pieces falling from the distribution box 4 onto the conveyor belt, the lifting assembly 12 and the lifting cylinder 9 work together to lower the fixed plate 10. At the same time, the lifting assembly 12, in conjunction with the oscillation assembly 11, adjusts the downward rotation angle limit of the screen 7, thereby reducing the amount of large coal pieces entering the distribution box 4 from the screen 7, and simultaneously controlling the downward movement of the fixed plate 10, effectively ensuring that the fixed plate 10 is always in contact with the large coal pieces on the conveyor belt and pushing them to disperse.
[0020] like Figures 1-6 As shown, the oscillation assembly 11 includes a mating cylinder 1101, a driving disk 1102, a receiving plate 1103, a sliding groove 1104, a fixing rod 1105, a spring 1106, a connecting rod 1107, a slider 1108, a rotating plate 1109, and an abutment rod 1110. A mating cylinder 1101 is slidably sleeved on the outer wall of the rotating cylinder 8. A driving disk 1102 is fixedly sleeved on the outer wall of the mating cylinder 1101. The outer edge of the driving disk 1102 is composed of multiple alternating and smoothly connected convex and concave arc segments. A receiving plate 1103 is also rotatably sleeved on the outer wall of the mating cylinder 1101. A sliding groove 1104 is provided on the receiving plate 1103. A slider 1108 is slidably connected to the inner wall of the sliding groove 1104. A fixing rod 110 is also fixedly connected to the inner wall of the sliding groove 1104. 5. The fixed rod 1105 is slidably connected to the slider 1108; a spring 1106 is provided between the inner wall of the end of the slide groove 1104 away from the mating cylinder 1101 and the slider 1108; a connecting rod 1107 is fixedly connected to the screen 7; a rotating plate 1109 is rotatably connected between the connecting rod 1107 and the slider 1108; an abutting rod 1110 is fixedly connected to the slider 1108; and the outer wall of the abutting rod 1110 abuts against the outer edge of the drive disk 1102.
[0021] Furthermore, multiple sets of baffles 1111 are fixedly connected to the side wall of the feed box 3, and slide rods 1112 are fixedly connected between the baffles 1111 in the same set, and the slide rods 1112 are all slidably connected to the receiving plate 1103.
[0022] In practical applications, the spring 1106 is always in a compressed state. Therefore, the spring 1106 always applies a force to the slider 1108 in the direction of the axis of the mating cylinder 1101, so that the abutting rod 1110 is always in contact with the outer edge of the drive disk 1102. When the abutting rod 1110 transitions from the outer convex arc of the drive disk 1102 to the inner concave arc, the abutting rod 1110 moves towards the axis of the mating cylinder 1101 under the push of the spring 1106 until the abutting rod 1110 abuts the position where the distance between the inner concave arc of the drive disk 1102 and its axis is the minimum. As the drive disk 1102 continues to rotate, the inner concave arc of the drive disk 1102 pushes the abutting rod 1110 to move away from the axis of the mating cylinder 1101 until the abutting rod 1110 contacts the outer convex arc of the drive disk 1102. The drive end of motor 13 drives the rotating drum 8 to rotate, and then the rotating drum 8 drives the mating drum 1101 to move. Then the mating drum 1101 drives the drive disk 1102 to rotate. Then the outer wall of the drive disk 1102 pushes the abutment rod 1110 to continuously approach and move away from the axis of the mating drum 1101, thereby pushing the slider 1108 to slide back and forth along the inner wall of the slide groove 1104. Then the slider 1108 drives the rotating plate 1109 to move. Then the rotating plate 1109 drives the screen 7 to rotate back and forth through the connecting rod 1107, thereby screening the coal blocks on the screen 7. When the lifting assembly 12 drives the cooperating cylinder 1101 to rise and fall, the cooperating cylinder 1101 drives the receiving plate 1103 to slide along the outer wall of the slide rod 1112, and the receiving plate 1103 simultaneously drives the slider 1108 to rise and fall; during this process, the slider 1108 drives the connecting rod 1107 to move through the rotating plate 1109, and the connecting rod 1107 drives the screen 7 to rotate at a small angle, thereby adjusting the downward rotation angle limit of the screen 7, and thus adjusting the number of coal blocks entering the distribution box 4 at one time to adapt to different working conditions; When the lifting component 12 drives the cooperating cylinder 1101 to rise, the connecting rod 1107 drives the screen 7 to rotate upward, thereby reducing the angle between the screen 7 and the horizontal plane, that is, reducing the downward rotation angle limit of the screen 7 during the reciprocating rotation, thereby reducing the amount of large coal blocks on the screen 7 entering the distribution box 4, and thus reducing the number of large coal blocks falling onto the conveyor belt in a single time in the distribution box 4. When the lifting assembly 12 drives the cooperating cylinder 1101 to descend, the connecting rod 1107 drives the screen 7 to rotate downward, thereby increasing the angle between the screen 7 and the horizontal plane, that is, increasing the angle limit of the downward rotation of the screen 7 during the reciprocating rotation, which in turn increases the amount of large coal blocks on the screen 7 entering the distribution box 4, thereby increasing the number of coal blocks that fall onto the conveyor belt in a single time in the distribution box 4.
[0023] like Figures 5-9 As shown, the lifting assembly 12 includes a drive rod 121, a matching cylinder 122, a support block 123, a lower limit groove 124, a lower limit rod 125, an upper limit groove 126, an upper limit rod 127, and a motor 128. The bottom end of the rotating drum 8 is provided with multiple lower limit grooves 124. A lower limit rod 125 is fixedly connected to the outer wall of the lifting cylinder 9. The lower limit rod 125 is slidably connected to the inner wall of the corresponding lower limit groove 124. The outer wall of the rotating drum 8 is also provided with multiple upper limit grooves 126. A matching cylinder 122 is slidably connected to the inner wall of the rotating drum 8. The outer wall of the matching cylinder 122 is fixedly connected with multiple upper limit rods 127. The upper limit rods 127 are slidably connected to the inner wall of the corresponding upper limit groove 126. The inner wall of the rotating drum 8 is fixedly connected to... A support block 123 is fixedly connected, and a drive rod 121 is rotatably connected to the inner wall of the support block 123. The outer wall of the drive rod 121 has a threaded groove symmetrical about the support block 123. The two threaded grooves have opposite thread directions, and the threaded grooves are respectively threaded to the inner walls of the lifting cylinder 9 and the mating cylinder 122. The top of the inner wall of the rotating cylinder 8 has a receiving groove 129. A motor 128 is fixedly installed at the bottom of the receiving groove 129, and the driving end of the motor 128 is fixedly connected to the drive rod 121.
[0024] Furthermore, the height of the upper limit groove 126 is less than the height of the lower limit groove 124, thereby ensuring that during the sliding of the upper limit rod 127 along the inner wall of the upper limit groove 126, the lower limit rod 125 always abuts against the inner wall of the lower limit groove 124, so that the rotating drum 8 can drive the lifting drum 9 to rotate through the cooperation of the lower limit groove 124 and the lower limit rod 125, thereby driving the fixed plate 10 to rotate.
[0025] Furthermore, both the second motor 128 and the first motor 13 are motors with locking functions.
[0026] In practical applications, when it is necessary to reduce the number of coal pieces entering the distribution box 4, the drive end of the control motor 128 rotates in the forward direction. The drive end of the control motor 128 drives the drive rod 121 to rotate. The drive rod 121 drives the lifting cylinder 9 and the cooperating cylinder 122 to move, and the lifting cylinder 9 and the cooperating cylinder 122 move in opposite directions. The drive rod 121 drives the lifting cylinder 9 to descend, and the lifting cylinder 9 drives the fixed plate 10 to descend. The drive rod 121 drives the cooperating cylinder 122 to rise, and the cooperating cylinder 122 drives the cooperating cylinder 1101 to rise through the upper limit rod 127, thereby adjusting the downward rotation angle limit of the screen 7, and thus reducing the number of coal pieces entering the distribution box 4 at one time. When it is necessary to increase the amount of coal entering the distribution box 4, the drive end of motor 2 128 is controlled to rotate in the opposite direction. The drive end of motor 2 128 drives the drive rod 121 to rotate. The drive rod 121 drives the lifting cylinder 1 9 and the cooperating cylinder 2 122 to move, and the lifting cylinder 1 9 and the cooperating cylinder 2 122 move in opposite directions. The drive rod 121 drives the lifting cylinder 1 9 to rise, and the lifting cylinder 1 9 drives the fixed plate 10 to rise. The drive rod 121 drives the cooperating cylinder 2 122 to fall. The cooperating cylinder 2 122 drives the cooperating cylinder 1101 to fall through the upper limit rod 127. The connecting rod 1107 drives the screen 7 to rotate downward, thereby increasing the angle between the screen 7 and the horizontal plane, that is, increasing the angle limit of the downward rotation during the reciprocating rotation of the screen 7. This can increase the amount of large coal on the screen 7 entering the distribution box 4, and thus increase the number of coal pieces falling onto the conveyor belt in a single time in the distribution box 4. The U-shaped cover 1210 provides support for the rotating drum 8, improving the stability of the rotating drum 8 during rotation.
[0027] like Figure 3 and Figure 4 As shown, the side wall of the material distribution box 4 is provided with a side door 5, which facilitates the operator to inspect and maintain the internal components of the material distribution box 4. The outer wall of the rotating drum 8 is provided with scale lines. The operator can accurately confirm the actual position of the mating cylinder 1101 by observing the scale lines, thereby making it easier to confirm the position of the upper limit rod 127, that is, to confirm the position of the fixed plate 10 and the angle limit of the downward rotation of the screen 7.
[0028] The working principle of this invention is as follows: The drive end of motor 13 drives the rotating drum 8 to rotate, then the rotating drum 8 drives the mating cylinder 1101 to move, then the mating cylinder 1101 drives the drive disk 1102 to rotate, then the outer wall of the drive disk 1102 pushes the abutment rod 1110 to continuously approach and move away from the axis of the mating cylinder 1101, thereby pushing the slider 1108 to slide back and forth along the inner wall of the slide groove 1104, then the slider 1108 drives the rotating plate 1109 to move, and then the rotating plate 1109 drives the screen through the connecting rod 1107. The screen 7 rotates back and forth to screen the coal blocks on the screen 7. Small coal blocks pass through the screen 7 and go directly to the conveyor belt of the conveyor 1. Large coal blocks are transported along the surface of the screen 7 to the distribution box 4 and then fall onto the conveyor belt. The rotating drum 8 drives the lifting drum 9 to rotate through the cooperation of the lower limit groove 124 and the lower limit rod 125. Then the lifting drum 9 drives the fixed plate 10 to rotate, thereby pushing the large coal blocks that fall onto the conveyor belt flat, avoiding excessive protrusion in the middle, which helps to disperse the large coal blocks and reduce sliding and rolling. When it is necessary to reduce the number of coal pieces entering the distribution box 4, the drive end of the control motor 128 rotates in the forward direction. The drive end of the control motor 128 drives the drive rod 121 to rotate. The drive rod 121 drives the lifting cylinder 9 and the cooperating cylinder 122 to move. The lifting cylinder 9 and the cooperating cylinder 122 move in opposite directions. The drive rod 121 drives the lifting cylinder 9 to descend. The lifting cylinder 9 drives the fixed plate 10 to descend. The drive rod 121 drives the cooperating cylinder 122 to rise. The cooperating cylinder 122 drives the cooperating cylinder 1101 to rise through the upper limit rod 127, thereby adjusting the downward rotation angle limit of the screen 7, and thus reducing the number of coal pieces entering the distribution box 4 at one time. When it is necessary to increase the number of coal blocks entering the distribution box 4, the drive end of the control motor 128 rotates in the opposite direction. The drive end of the control motor 128 drives the drive rod 121 to rotate. The drive rod 121 drives the lifting cylinder 9 and the cooperating cylinder 122 to move, and the lifting cylinder 9 and the cooperating cylinder 122 move in opposite directions. The drive rod 121 drives the lifting cylinder 9 to rise, and the lifting cylinder 9 drives the fixed plate 10 to rise. The drive rod 121 drives the cooperating cylinder 122 to fall. The cooperating cylinder 122 drives the cooperating cylinder 1101 to fall through the upper limit rod 127. The connecting rod 1107 drives the screen 7 to rotate downward, thereby increasing the angle between the screen 7 and the horizontal plane, that is, increasing the angle limit of the downward rotation during the reciprocating rotation of the screen 7. This can increase the amount of large coal blocks on the screen 7 entering the distribution box 4, and thus increase the number of coal blocks falling onto the conveyor belt in a single time in the distribution box 4.
[0029] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve any improvement to the software and methods.
[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A coal mine conveying device, comprising a conveyor (1), a support frame (2), a feed box (3), and a distribution box (4), characterized in that, The support frame (2) is fixedly connected to a feeding box (3) and a distributing box (4). The feeding box (3) and the distributing box (4) are fixedly connected. The side wall of the feeding box (3) is provided with a connecting groove (6). A screen (7) is hinged inside the feeding box (3). The other end of the screen (7) passes through the connecting groove (6) and is located inside the distributing box (4). The material distribution box (4) is equipped with a motor (13), and the drive end of the motor (13) is fixedly connected to a rotating drum (8). The rotating drum (8) and the screen (7) are equipped with an oscillating component (11). The screen (7) is driven to swing back and forth by the motor (13) and the oscillating component (11). The bottom of the rotating drum (8) is equipped with a lifting cylinder (9), and the bottom of the lifting cylinder (9) is fixedly connected to a fixing plate (10). The inner wall of the rotating drum (8) is also equipped with a lifting component (12). The lifting component (12) is connected to the lifting cylinder (9) and the oscillating component (11) respectively. The fixing plate (10) is driven to rise and fall by the lifting component (12) and the lifting cylinder (9). The angle limit of the downward rotation of the screen (7) is adjusted by the lifting component (12) and the oscillating component (11).
2. The coal mine mining and conveying device according to claim 1, characterized in that, The oscillation assembly (11) includes a mating cylinder (1101), a drive disk (1102), a receiving plate (1103), a slide groove (1104), a fixing rod (1105), a spring (1106), a connecting rod (1107), a slider (1108), a rotating plate (1109), and an abutment rod (1110). A fitting cylinder (1101) is slidably sleeved on the outer wall of the rotating cylinder (8). A driving disk (1102) is fixedly sleeved on the outer wall of the fitting cylinder (1101). The outer edge of the driving disk (1102) is composed of multiple segments of convex and concave arcs that are smoothly connected alternately. A receiving plate (1103) is also rotatably sleeved on the outer wall of the fitting cylinder (1101). A sliding groove (1104) is provided on the receiving plate (1103). A slider (1108) is slidably connected to the inner wall of the sliding groove (1104). A fixing rod (1105) is also fixedly connected to the inner wall of the sliding groove (1104). The fixed rod (1105) is slidably connected to the slider (1108); a spring (1106) is provided between the inner wall of the end of the groove (1104) away from the mating cylinder (1101) and the slider (1108); a connecting rod (1107) is fixedly connected to the screen (7); and a rotating plate (1109) is rotatably connected between the connecting rod (1107) and the slider (1108); an abutting rod (1110) is fixedly connected to the slider (1108); and the outer wall of the abutting rod (1110) abuts against the outer edge of the drive disk (1102).
3. The coal mine mining and conveying device according to claim 2, characterized in that, The side wall of the feed box (3) is fixedly connected to multiple sets of baffles (1111), and each set of baffles (1111) is fixedly connected to a sliding rod (1112), and the sliding rod (1112) is slidably connected to the receiving plate (1103).
4. The coal mine mining and conveying device according to claim 3, characterized in that, The lifting assembly (12) includes a drive rod (121), a matching cylinder (122), a support block (123), a lower limit groove (124), a lower limit rod (125), an upper limit groove (126), an upper limit rod (127), and a motor (128). The bottom end of the rotating cylinder (8) is provided with multiple lower limit grooves (124). The outer wall of the lifting cylinder (9) is fixedly connected with a lower limit rod (125). The lower limit rod (125) is slidably connected to the inner wall of the corresponding lower limit groove (124). The outer wall of the rotating cylinder (8) is also provided with multiple upper limit grooves (126). The inner wall of the rotating cylinder (8) is also slidably connected with a matching cylinder (122). The outer wall of the matching cylinder (122) is fixedly connected with multiple upper limit rods (127). The upper limit rods (127) are slidably connected to the inner wall of the corresponding upper limit groove (126). The rotating cylinder (8) A support block (123) is fixedly connected to the inner wall. A drive rod (121) is rotatably connected to the inner wall of the support block (123). A threaded groove symmetrical about the support block (123) is opened on the outer wall of the drive rod (121). The thread directions of the two threaded grooves are opposite. The threaded grooves are respectively threaded to the inner walls of the lifting cylinder (9) and the mating cylinder (122). A receiving groove (129) is opened at the top of the inner wall of the rotating cylinder (8). A motor (128) is fixedly installed at the bottom of the receiving groove (129). The driving end of the motor (128) is fixedly connected to the drive rod (121).
5. The coal mine mining and conveying device according to claim 4, characterized in that, The height of the upper limit groove (126) is less than the height of the lower limit groove (124). During the sliding process of the upper limit rod (127) along the inner wall of the upper limit groove (126), the lower limit rod (125) always abuts against the inner wall of the lower limit groove (124).
6. The coal mine mining and conveying device according to claim 4, characterized in that, Both the second motor (128) and the first motor (13) are motors with locking function.
7. The coal mine mining and conveying device according to claim 1, characterized in that, The material distribution box (4) has a side door (5) on its side wall, and the rotating drum (8) has scale lines on its outer wall.