Coal mine skip hoist buffer unloading device
By introducing a buffer unloading device into the coal mine skip hoist, and using a propulsion plate and servo motor to control the slow unloading of materials, the problem of impact force during traditional unloading is solved, and the equipment is made stable and can be used for a long time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANAN HECAOGOU NO 1 COAL MINE CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-19
AI Technical Summary
When unloading materials from a traditional coal mine skip hoist, the collective fall of the material causes significant vibration and impact on the equipment, which can easily lead to skip deformation and wear, affecting the long-term use of the equipment.
The device employs a buffer unloading mechanism, which includes components such as a pusher plate, a swing arm, a servo motor, and a baffle. By using a slow shaking structure and servo motor control, the falling speed of the material is reduced, and impact is prevented. The arc-shaped baffle controls the slow unloading of the material.
It effectively reduces the deformation and wear of the skip, extends the service life of the equipment, and improves the safety and stability of the unloading process.
Smart Images
Figure CN224377413U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coal mining, specifically, it relates to a buffer unloading device for a coal mine skip hoist. Background Technology
[0002] Coal mine skip hoists are continuous conveying equipment used for vertical or steep-angle lifting of bulk materials such as coal and ore, and are core equipment for main shaft transportation in coal mines. Their core functions include efficient lifting, safe braking, and precise positioning, and they are widely used in coal and metal mines.
[0003] A coal mine vertical shaft skip hoist (CN202411892668.1) includes a hanger, a first connecting rod is pinned to the middle of one side of the bottom end of the hanger, and a second connecting rod is pinned to the other end of the first connecting rod. The other end of the second connecting rod is pinned to one side of the bottom end of the skip. An ear seat is fixedly installed in the middle of the left side of the bottom end of the skip, and a drive shaft is movably sleeved inside the ear seat. An impact ball is provided on the outer surface of the drive shaft, and a winding drum is fixedly sleeved in the middle of the outer surface of the drive shaft.
[0004] When unloading materials using a traditional skip, the material falls collectively with a strong impact, causing the equipment to withstand enormous vibration. Existing technology involves the skip tipping over to unload the material. During the rapid unloading process in coal mines, the skip is subjected to instantaneous impact forces, which can easily lead to deformation and wear, making it unsuitable for long-term use.
[0005] In view of this, this utility model is proposed. Utility Model Content
[0006] To solve the aforementioned technical problem that easily leads to skip deformation, the basic concept of the technical solution adopted by this utility model is: a buffer unloading device for a coal mine skip hoist, including a car body, which is set above the ground;
[0007] The unloading structure is located above the vehicle body for unloading materials, and the unloading structure includes a basket.
[0008] The slow-shaking structure is located above the unloading structure. The unloading structure includes a push plate and a swing rod. The bottom surface of the skip has an insertion groove, and the push plate is located inside the insertion groove. Both ends of the push plate are elastically connected to the two sides of the insertion groove. Both ends of the swing rod are fixedly connected to the bottom surface of the push plate. A second servo motor is provided on one side of the swing rod to make the swing rod swing. The top surface of the push plate is provided with a sliding plate that swings in the opposite direction to the swing rod.
[0009] In a preferred embodiment of this utility model, the slow shaking structure further includes a protective cover and support columns. The protective cover is connected to the insertion slot and fixedly connected to the bottom surface of the skip. Two support columns are provided inside the cavity of the protective cover. The bottom surfaces of the two support columns and the second servo motor are both fixedly connected to the bottom surface of the protective cover. The swing rod passes through the two support columns and is slidably connected to the two support columns. A spring is fixedly provided between each side of the push plate and the side of the adjacent insertion slot.
[0010] In a preferred embodiment of the present invention, the slow shaking structure further includes a groove, a central block, and an L-shaped rod. The central block is fixedly connected to the middle of the swing rod. A groove is formed on one side of the central block. One end of the L-shaped rod is disposed in the groove and slidably connected to the groove. The other end of the L-shaped rod is fixedly connected to the rotating shaft of the second servo motor.
[0011] In a preferred embodiment of the present invention, the slow shaking structure further includes a first rocking rod, and several first rocking rods are fixedly connected to both sides of the push plate. One end of each first rocking rod is rotatably connected to the wall of the skip, and a sliding plate is fixed on the side of each first rocking rod away from the side of the skip.
[0012] In a preferred embodiment of this utility model, the unloading structure further includes a transmission rod, a rotating shaft, a baffle, and a first servo motor. The rotating shaft passes through one side of the vehicle body and is rotatably connected to the vehicle body. Each end of the rotating shaft is fixedly connected to one side of a transmission rod, and the other ends of the two transmission rods are rotatably connected to both sides of the baffle. The first servo motor is fixedly mounted on one side of the vehicle body, and the rotating shaft of the first servo motor is fixedly connected to one end of a transmission rod.
[0013] In a preferred embodiment of this utility model, the unloading structure further includes connecting blocks and rotating rods. Two connecting blocks are provided on both sides of the baffle. One end of the two connecting blocks is fixedly connected to both sides of the skip. The two connecting blocks pass through both sides of the baffle, and the baffle is rotatably connected to the two connecting blocks. Two rotating rods are respectively provided on both sides of the skip. One end of the rotating rod is fixedly connected to one side of the skip, and the other end of the rotating rod is rotatably connected to both sides of the vehicle body.
[0014] In a preferred embodiment of this utility model, both the baffle and the skip are arc-shaped on one side, the side of the baffle is adapted to the side of the skip, and a steel wire rope is fixed on one side of the vehicle body.
[0015] Compared with the prior art, the present invention has the following advantages:
[0016] 1. The swing lever drives the propulsion plate to swing, slowly pushing the coal above the propulsion plate forward to prevent the coal from falling rapidly. The propulsion plate and skip are deformed by the huge impact force, creating an opening between the baffle and the skip. The coal falls slowly through the opening, and the curved side of the baffle blocks the coal, preventing the impact from being too great.
[0017] 2. The first rocking lever drives the sliding plate to swing to the right to block the upper layer of coal mine, preventing the coal mine from accumulating too thickly. All the coal mine would then gather together towards the opening, resulting in a large load on the baffle. When the push plate moves to the right, the first rocking lever drives the sliding plate to swing to the left, pushing the upper layer of coal mine towards the opening and causing it to fall.
[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0019] In the attached diagram:
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the unloading structure of this utility model;
[0022] Figure 3 This is a partial schematic diagram of the unloading structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the slow shaking structure of this utility model;
[0024] Figure 5 This is a partial schematic diagram of the slow shaking structure of this utility model.
[0025] In the diagram: 1. Vehicle body; 2. Steel wire rope; 3. Transmission rod; 4. Rotating shaft; 5. Baffle; 6. Connecting block; 7. Skip; 8. Protective cover; 9. Sliding plate; 10. First rocker arm; 11. Insertion slot; 12. First servo motor; 13. Propulsion plate; 14. Support column; 15. Slide groove; 16. Center block; 17. Swing rod; 18. Spring; 19. L-bar; 20. Second servo motor; 21. Rotating rod. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0027] A buffer unloading device for a coal mine skip hoist, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the unloading structure is located above the vehicle body 1 for unloading materials. The unloading structure includes a skip 7 and a slow-vibration structure located above the unloading structure. The slow-vibration structure includes a pusher plate 13 and a swing rod 17. A placement groove 11 is formed on the bottom surface of the skip 7. The pusher plate 13 is placed inside the placement groove 11, and its two ends are elastically connected to the sides of the placement groove 11. The two ends of the swing rod 17 are fixedly connected to the bottom surface of the pusher plate 13. A second servo motor 20 is provided on one side of the swing rod 17 to make it swing. The slow-vibration structure also includes a protective cover 8 and a support column 14. The protective cover 8 is connected to the placement groove 11 and fixed to the bottom surface of the skip 7. The protective cover 8 has two support columns 14 inside its cavity. The bottom surfaces of the two support columns 14 and the second servo motor 20 are fixedly connected to the bottom surface of the protective cover 8. The swing rod 17 passes through the two support columns 14 and is slidably connected to the two support columns 14. A spring 18 is fixedly installed between each side of the push plate 13 and the side of the adjacent insertion slot 11. The slow shaking structure also includes a slide groove 15, a center block 16 and an L rod 19. The center block 16 is fixedly connected to the middle of the swing rod 17. A slide groove 15 is opened on one side of the center block 16. One end of the L rod 19 is set in the slide groove 15 and is slidably connected to the slide groove 15. The other end of the L rod 19 is fixedly connected to the rotation shaft of the second servo motor 20.
[0028] When the power of the second servo motor 20 is turned on, the L rod 19 slides on the slide 15 while driving the center block 16 to swing left and right. The swing rod 17 drives the push plate 13 to swing accordingly, slowly pushing the coal mine above the push plate 13 forward to prevent the coal mine from falling quickly. The push plate 13 and the skip 7 are deformed due to the huge impact force.
[0029] A buffer unloading device for a coal mine skip hoist, such as Figure 2 and Figure 3As shown, the vehicle body 1 is positioned above the ground. Both the baffle 5 and the skip 7 have an arc-shaped side. The side of the baffle 5 is adapted to the side of the skip 7. A steel wire rope 2 is fixed to one side of the vehicle body 1. An unloading structure is positioned above the vehicle body 1 for unloading materials. The unloading structure includes the skip 7, a transmission rod 3, a rotating shaft 4, the baffle 5, and a first servo motor 12. The rotating shaft 4 passes through one side of the vehicle body 1 and is rotatably connected to it. Each end of the rotating shaft 4 is fixedly connected to one side of a transmission rod 3, and the other ends of the two transmission rods 3 are rotatably connected to both sides of the baffle 5. The first servo motor 12 is fixedly mounted on one side of the vehicle body 1. The rotating shaft of the first servo motor 12 is fixedly connected to one end of a transmission rod 3. The unloading structure also includes a connecting block 6 and a rotating rod 21. Two connecting blocks 6 are provided on both sides of the baffle 5. One end of the two connecting blocks 6 is fixedly connected to both sides of the skip 7. The two connecting blocks 6 pass through both sides of the baffle 5. The baffle 5 is rotatably connected to the two connecting blocks 6. There are two rotating rods 21 respectively provided on both sides of the skip 7. One end of the rotating rod 21 is fixedly connected to one side of the skip 7. The other end of the rotating rod 21 is rotatably connected to both sides of the vehicle body 1.
[0030] The skip is lifted by the steel wire rope 2. The coal ore is inside the skip 7. When unloading, the first servo motor 12 is started. The first servo motor 12 drives the transmission rod 3 to rotate. The transmission rod 3 drives the rotating shaft 4 and another transmission rod 3 to rotate. The two transmission rods 3 drive the baffle 5 to move forward. The two connecting blocks 6 drive the skip 7 to tilt, so that the tilt of the skip 7 is not so great that all the coal ore will fall. The arc-shaped side of the baffle 5 is away from the arc-shaped side of the skip 7, and an opening is created between the baffle 5 and the skip 7. The coal ore falls slowly from the opening. The arc-shaped side of the baffle 5 blocks the coal ore and prevents excessive impact.
[0031] A buffer unloading device for a coal mine skip hoist, such as Figure 4 and Figure 5 As shown, the top surface of the push plate 13 is provided with a sliding plate 9 that swings in the opposite direction to the swing rod 17. The slow shaking structure also includes a first rocking rod 10. Several first rocking rods 10 are fixedly connected to both sides of the push plate 13. One side of each first rocking rod 10 is rotatably connected to the wall of the scoop 7. A sliding plate 9 is fixed on the side of each first rocking rod 10 away from the side of the scoop 7.
[0032] As the push plate 13 swings left and right, it drives the first rocking rod 10 to rotate. When the push plate 13 moves to the left, the first rocking rod 10 drives the sliding plate 9 to swing to the right to block the upper layer of coal mine, preventing the coal mine from accumulating too thickly and all the coal mine from gathering together towards the opening. The baffle 5 is subjected to a large load. When the push plate 13 moves to the right, the first rocking rod 10 drives the sliding plate 9 to swing to the left, pushing the upper layer of coal mine towards the opening and causing it to fall.
[0033] The working principle of this utility model is as follows: The skip is lifted by the wire rope 2. Coal ore is inside the skip 7. During unloading, the first servo motor 12 is activated. The first servo motor 12 drives the transmission rod 3 to rotate. The transmission rod 3 drives the rotating shaft 4 and another transmission rod 3 to rotate. The two transmission rods 3 drive the baffle 5 to move forward. The two connecting blocks 6 cause the skip 7 to tilt, preventing all the coal ore from falling. The arc-shaped side of the baffle 5 is away from the arc-shaped side of the skip 7, creating an opening between the baffle 5 and the skip 7. The coal ore slowly falls through the opening. The arc-shaped side of the baffle 5 blocks the coal ore, preventing excessive impact. The power to the second servo motor 20 is turned on, and the L-rod 19 moves in the chute. As 15 slides, it causes the center block 16 to swing left and right. The swing rod 17 causes the push plate 13 to swing accordingly, slowly pushing the coal mine above the push plate 13 forward to prevent the coal mine from falling quickly. The push plate 13 and the skip 7 are deformed by the huge impact force. While the push plate 13 swings left and right, it causes the first swing rod 10 to rotate. When the push plate 13 moves to the left, the first swing rod 10 causes the sliding plate 9 to swing to the right to block the upper layer of coal mine, preventing the coal mine from accumulating too thickly. All the coal mine will gather together towards the opening, and the baffle 5 will be under a large load. When the push plate 13 moves to the right, the first swing rod 10 causes the sliding plate 9 to swing to the left, pushing the upper layer of coal mine towards the opening and causing it to fall.
[0034] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A coal mine skip hoist buffer unloading device, characterized in that, include Vehicle body (1), the vehicle body (1) is set above the ground; The unloading structure is set above the vehicle body (1) for unloading materials. The unloading structure includes a skip (7). The slow shaking structure is set above the unloading structure. The unloading structure includes a push plate (13) and a swing rod (17). The bottom surface of the skip (7) is provided with an insertion groove (11). The push plate (13) is set inside the insertion groove (11). The two ends of the push plate (13) are elastically connected to the two sides of the insertion groove (11). The two ends of the swing rod (17) are fixedly connected to the bottom surface of the push plate (13). A second servo motor (20) is provided on one side of the swing rod (17) to make the swing rod (17) swing. The top surface of the push plate (13) is provided with a sliding plate (9) that swings in the opposite direction to the swing rod (17).
2. The buffer unloading device for a coal mine skip hoist according to claim 1, characterized in that, The slow shaking structure also includes a protective cover (8) and support columns (14). The protective cover (8) is connected to the insertion slot (11). The protective cover (8) is fixedly connected to the bottom surface of the skip (7). Two support columns (14) are provided inside the cavity of the protective cover (8). The bottom surfaces of the two support columns (14) and the second servo motor (20) are fixedly connected to the bottom surface of the protective cover (8). The swing rod (17) passes through the two support columns (14) and is slidably connected to the two support columns (14). A spring (18) is fixedly provided between each side of the push plate (13) and the side of the adjacent insertion slot (11).
3. A buffer unloading device for a coal mine skip hoist according to claim 2, characterized in that, The slow shaking structure also includes a groove (15), a center block (16) and an L-rod (19). The center block (16) is fixedly connected to the middle of the swing rod (17). A groove (15) is opened on one side of the center block (16). One end of the L-rod (19) is set in the groove (15) and is slidably connected to the groove (15). The other end of the L-rod (19) is fixedly connected to the rotating shaft of the second servo motor (20).
4. A buffer unloading device for a coal mine skip hoist according to claim 3, characterized in that, The slow shaking structure also includes a first rocking rod (10). Several first rocking rods (10) are fixedly connected to both sides of the push plate (13). One side of each first rocking rod (10) is rotatably connected to the wall of the scoop (7). A sliding plate (9) is fixed on the side of each first rocking rod (10) away from the side of the scoop (7).
5. A buffer unloading device for a coal mine skip hoist according to claim 1, characterized in that, The unloading structure also includes a transmission rod (3), a rotating shaft (4), a baffle (5), and a first servo motor (12). The rotating shaft (4) passes through one side of the vehicle body (1) and is rotatably connected to the vehicle body (1). Both ends of the rotating shaft (4) are fixedly connected to one side of a transmission rod (3), and the other ends of the two transmission rods (3) are rotatably connected to both sides of the baffle (5). The first servo motor (12) is fixedly mounted on one side of the vehicle body (1), and the rotating shaft of the first servo motor (12) is fixedly connected to one end of a transmission rod (3).
6. A buffer unloading device for a coal mine skip hoist according to claim 5, characterized in that, The unloading structure also includes connecting blocks (6) and rotating rods (21). Two connecting blocks (6) are provided on both sides of the baffle (5). One end of the two connecting blocks (6) is fixedly connected to both sides of the skip (7). The two connecting blocks (6) pass through both sides of the baffle (5). The baffle (5) is rotatably connected to the two connecting blocks (6). There are two rotating rods (21) respectively provided on both sides of the skip (7). One end of the rotating rod (21) is fixedly connected to one side of the skip (7). The other end of the rotating rod (21) is rotatably connected to both sides of the vehicle body (1).
7. A buffer unloading device for a coal mine skip hoist according to claim 5, characterized in that, The baffle (5) and the skip (7) are both arc-shaped on one side. The side of the baffle (5) is adapted to the side of the skip (7). A steel wire rope (2) is fixed on one side of the vehicle body (1).