Coal mine transfer point chute lining structure
By using recycled chains and snap-fit structures on the chute linings at coal mine transfer points to form a fixed whole, the problems of rapid wear and frequent replacement are solved, thereby reducing maintenance costs and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUHENG POWER STATION OF SHAANXI HUADIAN YUHENG COAL POWER CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-08-04
AI Technical Summary
The existing coal mine transfer point chute liners wear out quickly under high production conditions, leading to frequent replacements and high maintenance costs. In addition, the frequent replacement of worn chains generates a large number of worn chains, resulting in high maintenance costs.
Used chains are welded onto snap-fit support plates, and multiple sets of chute liners are fixed into a whole by snap-fit locks and cross-shaped snap-fit buckles. In conjunction with overlapping impact plates and swing plates, friction is increased, reducing the need to replace liners individually.
It extends the service life of the chute liner, reduces the frequency of maintenance and replacement, reduces the generation of waste materials, and lowers maintenance costs.
Smart Images
Figure CN224590051U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of coal mine chute lining plates, specifically a coal mine transfer point chute lining plate structure. Background Technology
[0002] Buffer liners are used to protect the impact points of material chutes at the loading points of belt conveyors. For chutes at transfer points of small-particle and powdery materials, high-molecular-weight polyethylene liners are generally used to achieve the purpose of protecting the chutes. Moreover, existing coal mine buffer liners are made of 16Mn manganese steel, high wear-resistant ceramic, vermiculite, rubber, polyurethane, etc. These different types of liners each have their own advantages and are widely used in different locations.
[0003] After the coal washing plant underwent expansion and renovation, the hourly coal carrying capacity increased from 2,500 t / h to 3,300 t / h, resulting in a significant change in output. The increased coal volume also increased the impact on the chute, accelerating its wear. In actual production, the original coal conveying chute liners at the material drop point needed to be replaced every 3 months, while the liners at other wear points needed to be replaced every 6 months. Each replacement required 18 man-hours to complete, and the wear-resistant liners at the transfer points needed to be replaced at least twice a year. This resulted in high maintenance costs, long maintenance times, and a serious impact on output.
[0004] In current technology, during long-term production in coal washing plants, the drive chains of heavy medium shallow chutes need to be replaced after reaching their service life. This generates a large number of waste chains, and the wear rate of the liners at the transfer chute is also high. Both the recycling cost and the maintenance cost are relatively high.
[0005] Therefore, a coal mine transfer point chute lining structure is proposed to address the above problems. Utility Model Content
[0006] To overcome the shortcomings of existing technologies and solve the above-mentioned problems, a coal mine transfer point chute lining structure is proposed.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The coal mine transfer point chute liner structure of this utility model includes a chute frame and a chute liner that is movably sleeved on the inner wall of the chute frame, a snap-fit support plate that is movably sleeved on the top surface of the chute liner, a waste chain that is welded to the top surface of the snap-fit support plate, a snap-fit buckle that is detachably installed on the top surface of the waste chain, and a mating protrusion that is fixedly connected to the bottom surface of the snap-fit support plate.
[0008] Preferably, an overlapping impact-resistant plate is fixedly connected to the top surface of the chute liner, and an anti-collision plate is provided on the top surface of the overlapping impact-resistant plate and at one side edge.
[0009] Preferably, a docking hole is provided on the top surface of the overlapping impact plate and at the other edge of the impact plate, and the outer surface of the docking protrusion is movably sleeved on the inner wall of the docking hole.
[0010] Preferably, the chute liner has snap-fit limiting grooves on both sides of its edge, snap-fit limiting strips are movably sleeved on the inner wall of the snap-fit limiting grooves, and docking holes are provided on both sides of the snap-fit limiting strips, with grid-pattern snap-fit buckles movably sleeved on the inner wall of the docking holes.
[0011] Preferably, a swing plate is oscillatingly connected to both sides of the overlapping impact-resistant plate, and an overlapping compression-resistant plate is fixedly connected to the top outer surface of the swing plate.
[0012] Preferably, the outer surface of the overlapping pressure-resistant plate is movably overlapped with the top surface of the chute liner, and an anti-slip strip is fixedly connected to the outer surface of the swing plate, with the outer surface of the anti-slip strip movably overlapping with the inner wall of the chute frame.
[0013] The beneficial effects of this utility model are:
[0014] This utility model provides a coal mine transfer point chute liner structure. The collected waste chains are cut according to the length of the liner, and multiple waste chains are laid flat on the top surface of the snap-fit support plate. Then, snap-fit buckles are attached to the top surface of the waste chains, positioning multiple sets of waste chains on the top surface of the snap-fit support plate. The snap-fit buckles are used to limit the position of the waste chains. Then, the two ends of the waste chains are welded to the top two sides of the snap-fit support plate by arc welding to prevent the waste chains from shifting during positioning welding.
[0015] This utility model provides a coal mine transfer point chute liner structure. After the waste chain is positioned, the connecting protrusion on the bottom surface of the snap-fit support plate is snapped onto the top surface of the overlapping impact-resistant plate, so that the waste chain is connected to the inner wall of the first connecting hole. At this time, the two chute liners are connected, and the snap-fit limiting strip is snapped onto the inner wall of the snap-fit limiting groove, thus connecting the two chute liners together to form a whole. After the four sets of chute liners are connected and limited together, the grid snap-fit buckle is attached to the inner wall of the second connecting hole, and the grid snap-fit buckle is used to limit the four sets of chute liners together to form a whole. At the same time, the anti-collision plate on the top surface of the overlapping impact-resistant plate provides pressure protection against external coal and increases the friction effect.
[0016] This utility model provides a coal mine transfer point chute liner structure. After multiple sets of chute liners are positioned, the chute liners are placed inside the chute frame. At this time, the anti-slip strip on the outer surface of the swing plate overlaps with the inner wall of the chute frame to increase the friction and anti-slip force between the swing plate and the surface of the chute frame. Furthermore, the overlapping anti-pressure plate on the outer surface of the swing plate ensures that the swing plate will not tilt excessively when it swings. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0019] Figure 2 This is a three-dimensional structural diagram of the chute liner in this utility model;
[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the chute liner in this utility model;
[0021] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the chute liner in this utility model;
[0022] Figure 5 This is a schematic diagram of the unfolded three-dimensional structure of the snap-fit support clamp in this utility model.
[0023] Legend: 11. Chute frame; 12. Chute liner; a1. Swing plate; a2. Anti-slip strip; a3. Overlapping pressure plate; 121. Overlapping impact plate; 122. Impact plate; 123. Butt hole one; 124. Snap-fit limiting groove; 125. Snap-fit limiting strip; 126. Butt hole two; 127. Grid snap-fit buckle; 13. Snap-fit support clamp; 131. Butt-fit protrusion; 132. Waste chain; 133. Snap-fit lock. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] Specific implementation examples are given below.
[0026] Please see Figure 1 - Figure 5 This utility model provides a coal mine transfer point chute liner structure, including a chute frame 11 and a chute liner 12 movably sleeved on the inner wall of the chute frame 11, a snap-fit support clamp 13 movably sleeved on the top surface of the chute liner 12, a waste chain 132 welded to the top surface of the snap-fit support clamp 13, a snap-fit buckle 133 detachably installed on the top surface of the waste chain 132, and a mating protrusion 131 fixedly connected to the bottom surface of the snap-fit support clamp 13.
[0027] During operation, the sorted waste chains 132 are cut according to the length of the liner plate, and multiple waste chains 132 are laid flat on the top surface of the snap-fit support plate 13. Then, the snap-fit locks 133 are overlapped on the top surface of the waste chains 132, positioning multiple sets of waste chains 132 on the top surface of the snap-fit support plate 13. The snap-fit locks 133 are used to limit the position of the waste chains 132. Then, the two ends of the waste chains 132 are welded to the top two sides of the snap-fit support plate 13 by arc welding to prevent the waste chains 132 from shifting during positioning welding.
[0028] Later, when the worn chain 132 on the top surface of a snap-fit support plate 13 is excessively worn, the snap-fit support plate 13 can be directly removed from the top surface of the chute liner 12 for fixed-point replacement, without the need to directly replace and disassemble the entire chute liner 12.
[0029] like Figures 3 to 4 As shown, an overlapping impact plate 121 is fixedly connected to the top surface of the chute liner 12. An anti-collision plate 122 is provided on the top surface of the overlapping impact plate 121 and at one side edge. A docking hole 123 is provided on the top surface of the overlapping impact plate 121 and at the other side edge of the anti-collision plate 122. The outer surface of the docking protrusion 131 is movably sleeved on the inner wall of the docking hole 123.
[0030] During operation, after the waste chain 132 is positioned, the mating protrusion 131 on the bottom surface of the snap-fit support plate 13 is snapped onto the top surface of the overlapping impact plate 121, so that the waste chain 132 is mated with the inner wall of the mating hole 123. At this time, the two chute liners 12 are mated together, and the snap-fit limiting strip 125 is snapped onto the inner wall of the snap-fit limiting groove 124, thereby mating the two chute liners 12 together, so that the two chute liners 12 form a whole.
[0031] In practical use, such as Figures 1 to 4As shown, snap-fit limiting grooves 124 are provided on both sides of the chute liner 12. Snap-fit limiting strips 125 are movably sleeved on the inner wall of the snap-fit limiting grooves 124. Second docking holes 126 are provided on both sides of the snap-fit limiting strips 125. Grid snap-fit buckles 127 are movably sleeved on the inner wall of the second docking holes 126.
[0032] During operation, after the four sets of chute liners 12 are connected and locked together, the grid-shaped fastener 127 is fitted onto the inner wall of the second docking hole 126. The grid-shaped fastener 127 is used to bind the four sets of chute liners 12 together to form a whole. At the same time, the anti-collision plate 122 on the top surface of the overlapping impact plate 121 provides pressure protection against external coal and increases the friction effect.
[0033] In some embodiments, such as Figures 1 to 4 As shown, a swing plate a1 is swayingly connected to both sides of the overlapping impact plate 121, an overlapping pressure-resistant plate a3 is fixedly connected to the top outer surface of the swing plate a1, the outer surface of the overlapping pressure-resistant plate a3 is movably overlapping the top surface of the chute liner 12, and an anti-slip strip a2 is fixedly connected to the outer surface of the swing plate a1, the outer surface of the anti-slip strip a2 is movably overlapping the inner wall of the chute frame 11.
[0034] After the multiple sets of chute liners 12 are positioned, the chute liners 12 are placed inside the chute frame 11. At this time, the anti-slip strips a2 on the outer surface of the swing plate a1 overlap with the inner wall of the chute frame 11, increasing the friction and anti-slip force between the swing plate a1 and the surface of the chute frame 11. Then, the anti-pressure plate a3 on the outer surface of the swing plate a1 ensures that the swing plate a1 will not tilt too much when it swings.
[0035] Working principle: The sorted waste chains 132 are cut according to the length of the liner plate, and multiple waste chains 132 are laid flat on the top surface of the snap-fit support plate 13. Then, the snap-fit locks 133 are overlapped on the top surface of the waste chains 132, positioning multiple sets of waste chains 132 on the top surface of the snap-fit support plate 13. The snap-fit locks 133 are used to limit the position of the waste chains 132. Then, the two ends of the waste chains 132 are welded to the top two sides of the snap-fit support plate 13 by arc welding to prevent the waste chains 132 from shifting during positioning welding.
[0036] Later, when the worn chain 132 on the top surface of a snap-fit support plate 13 is excessively worn, the snap-fit support plate 13 can be directly removed from the top surface of the chute liner 12 for fixed-point replacement, without the need to directly replace and disassemble the entire chute liner 12.
[0037] After the waste chain 132 is positioned, the mating protrusion 131 on the bottom surface of the snap-fit support plate 13 is snapped onto the top surface of the overlapping impact-resistant plate 121, so that the waste chain 132 is mated with the inner wall of the first mating hole 123. At this time, the two chute liners 12 are mated together, and the snap-fit limiting strip 125 is snapped onto the inner wall of the snap-fit limiting groove 124, thereby mating the two chute liners 12 together to form a whole. After the four sets of chute liners 12 are mated and limited together, the grid snap-fit buckle 127 is fitted onto the inner wall of the second mating hole 126, and the grid snap-fit buckle 127 is used to limit the four sets of chute liners 12 together to form a whole. At the same time, the anti-collision plate 122 on the top surface of the overlapping impact-resistant plate 121 provides pressure protection against external coal and increases the friction effect.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A coal mine transfer point chute lining structure, comprising a chute frame and a chute lining movably sleeved on the inner wall of the chute frame, and a snap-fit support clamp movably sleeved on the top surface of the chute lining, characterized in that: The top surface of the snap-fit support plate is welded with a waste chain, and the top surface of the waste chain is detachably fitted with a snap-fit buckle. The bottom surface of the snap-fit support plate is fixedly connected with a mating protrusion.
2. The coal mine transfer point chute liner structure according to claim 1, characterized in that: An overlapping impact-resistant plate is fixedly connected to the top surface of the chute liner, and an anti-collision plate is provided on the top surface of the overlapping impact-resistant plate and at one side edge.
3. The coal mine transfer point chute liner structure according to claim 2, characterized in that: A docking hole is provided on the top surface of the overlapping impact plate and at the other edge of the impact plate. The outer surface of the docking protrusion is movably fitted onto the inner wall of the docking hole.
4. The coal mine transfer point chute liner structure of claim 3, wherein: The chute liner has snap-fit limiting grooves on both sides of its edge. A snap-fit limiting strip is movably fitted on the inner wall of the snap-fit limiting groove. A second docking hole is provided on both sides of the snap-fit limiting strip. A grid-pattern snap-fit buckle is movably fitted on the inner wall of the second docking hole.
5. A coal mine transfer point chute liner structure according to claim 4, characterised in that: The overlapping impact-resistant plate has swing plates oscillatingly connected to both sides of its surface, and an overlapping compression-resistant plate is fixedly connected to the top outer surface of the swing plates.
6. A coal mine transfer point chute liner structure according to claim 5, characterised in that: The outer surface of the overlapping pressure-resistant plate is movably overlapped with the top surface of the chute liner, and an anti-slip strip is fixedly connected to the outer surface of the swing plate. The outer surface of the anti-slip strip is movably overlapped with the inner wall of the chute frame.