Cleaning device for coal picker

By designing a cleaning device that adapts to wear and utilizing the energy storage mechanism of the coal preparation roller and spring, the problem of incomplete cleaning caused by brush wear was solved, thereby improving the cleaning effect and working efficiency of the coal preparation machine.

CN223875619UActive Publication Date: 2026-02-06HUAINAN MINING (GRP) CO LTD XIEQIAO COAL PREPARATION PLANT
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Patent Information

Application Number
CN202520351644.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-02-06
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

During use, the existing cleaning device for coal preparation machines suffers from incomplete contact with coal slime and impurities due to the wear and tear on the brushes, resulting in incomplete cleaning and affecting coal preparation efficiency.

Method used

A cleaning device for a coal preparation machine was designed. The coal preparation roller presses against the support plate and the brush, causing the support plate to slide and push the limit plate. The spring stores elastic potential energy and provides a reverse force to adapt to wear. Combined with the transmission shaft, it is converted into linear sliding force. The distance between the adjustment plates is adjusted to achieve more effective cleaning and coal collection.

Benefits of technology

It improves the cleaning effect, enhances the applicability and working efficiency of the device, and ensures the normal operation of the coal preparation machine and the flow of materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of coal separators, and discloses a cleaning device for a coal separator, which comprises two bottom plates, the bottom side of one of the bottom plates is fixedly connected with a protection box, the inside of the protection box is fixedly connected with a driving assembly for providing power, the bottom side of the bottom plate is fixedly connected with two connecting frames, and the two connecting frames are fixedly connected with the bottom side of the bottom plate. A transmission assembly for transmitting power is slidably connected to the interiors of the multiple connecting frames, the front end and the rear end of the transmission assembly are fixedly connected with multiple connecting frames through multiple screws, T-shaped openings are formed in the connecting frames, and multiple springs are fixedly connected to the bottom sides of the inner walls of the connecting frames. According to the utility model, the plurality of springs can store elastic potential energy by extruding the plurality of springs, and then a force in a reverse direction is applied to the supporting plate and the brush through the limiting plate to abut against the coal dressing roller, so that the supporting plate and the brush can adapt to the abrasion of the coal dressing roller, the cleaning effect is improved, and the working efficiency is further improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to coal preparation machine technical field especially relates to a kind of cleaning device for coal preparation machine. BACKGROUND

[0002] Coal preparation machine is a kind of equipment for separating coal. Coal is a kind of complex mixture after being mined, which contains coal blocks of different quality and granularity, gangue and impurities, etc. During the coal separation process, coal will continuously move and be screened on various components (such as screen, chute, separation tank, etc.) of the coal preparation machine. Part of the coal will adhere to the surface of these components, and with the passage of time, the accumulation of coal will reduce the effective working area of the components.

[0003] In the prior art, first, the driving motor drives the cleaning brush or scraper to operate. The cleaning brush rotates at high speed, and the coal slurry and small particles are swept off by centrifugal force. The scraper reciprocates to remove the agglomerated impurities. The cleaned materials fall into the collection area through the guide channel. After accumulating enough, the discharge port is opened to discharge waste materials, ensuring the normal operation of the coal preparation machine.

[0004] However, in the prior art, the internal components of the coal preparation machine wear out to different degrees after long-term operation, and the surface flatness changes, resulting in too large or too small gaps between the brush and the groove wall. If the gap is too large, the brush cannot effectively touch the adhered coal slurry and impurities, resulting in incomplete cleaning and continuous accumulation of residual impurities. This not only reduces the coal separation quality, but also blocks the internal passage of the equipment, affecting the normal flow of materials and reducing the coal separation efficiency. Therefore, to solve the above problems, a cleaning device for coal preparation machine is proposed. SUMMARY

[0005] To make up for the above shortcomings, the utility model provides a kind of cleaning device for coal preparation machine, to improve the problem that, in the prior art, part of the cleaning device for coal preparation machine cannot adapt to the wear of the brush during use, resulting in incomplete cleaning and affecting the coal separation efficiency.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A kind of cleaning device for coal separator, including two bottom plates, one of the bottom plate bottom side fixedly connected with protective box, the inside of the protective box is fixedly connected with driving assembly for providing power, the bottom plate bottom side is fixedly connected with two connecting frames, the inside of multiple connecting frames is slidably connected with transmission assembly for power transmission, the front and rear ends of the transmission assembly are fixedly connected with multiple link frames by multiple screws, the inside of the link frame is provided with T-shaped opening, the inner wall bottom side of the link frame is fixedly connected with multiple springs, the top end of multiple springs is fixedly connected with limit plate, the top side of the limit plate is fixedly connected with support plate, the top side of the support plate is fixedly connected with multiple brushes, the top side of the two bottom plates is fixedly connected with vertical plate in one end;

[0008] As further description of the above technical solutions:

[0009] The right bottom end of two bottom plates is fixedly connected with side plate, the right side of the vertical plate is fixedly connected with square plate, the bottom side of the square plate is fixedly connected with positioning shaft, the outside of the positioning shaft is rotatably connected with adjusting plate, the right top end of two protective boxes is fixedly connected with protective plate, the inner wall left side of the protective plate is fixedly connected with air cylinder, the drive end of the air cylinder is fixedly connected with push plate, the front and rear ends of the push plate are rotatably connected with guide plate, the bottom side of the guide plate is fixedly connected with transmission shaft;

[0010] As further description of the above technical solutions:

[0011] The top side of two bottom plates is fixedly connected with limit frame in one end, the top side of the bottom plate is fixedly connected with fixed frame in middle, the inside of two vertical plates is rotatably connected with multiple coal selection rollers;

[0012] As further description of the above technical solutions:

[0013] The driving assembly includes motor, the outside of the motor is fixedly connected in the inside of the protective box, the drive end of the motor is fixedly connected with rotating shaft, the top side of the rotating shaft is fixedly connected with rotating plate, the top side of the rotating plate is fixedly connected with transmission column, the outside of the transmission column is slidably connected with sliding frame, the rear side of the sliding frame is fixedly connected with link plate;

[0014] As further description of the above technical solutions:

[0015] The transmission assembly includes multiple sliding plates, the outside of the sliding plate is slidably connected in the inside of the connecting frame, the similar side of two sliding plates is fixedly connected with fixed plate, the similar side of multiple sliding plates is fixedly connected with connecting block, the top side of two connecting blocks is fixedly connected with strip plate, the inside of two strip plates is fixedly connected with multiple link frames by multiple screws in the bottom front and rear ends;

[0016] As a further description of the above technical solutions:

[0017] The outer part of the limiting plate is slidably connected to the inner part of the T-shaped opening, and the outer part of the supporting plate is slidably connected to the inner part of the T-shaped opening.

[0018] As a further description of the above technical solutions:

[0019] The rear side of the connecting plate is fixedly connected to the front side of one of the fixing plates, and the outer part of the rotating shaft is rotatably connected to the inner part of the top end of the protective box.

[0020] As a further description of the above technical solutions:

[0021] The top side of the adjusting plate is provided with a strip-shaped opening, the bottom end of the transmission shaft is slidably connected to the inner part of the strip-shaped opening, and the outer parts of the two transmission shafts are respectively slidably connected to the inner parts of the front and rear ends of the protective plate.

[0022] The utility model has the following beneficial effects:

[0023] 1、The utility model discloses a cleaning device for coal sorting machine, which comprises a supporting plate, a limiting plate, a plurality of springs, a protective box, a protective plate, a fixing plate, a connecting plate, a rotating shaft, a transmission shaft and an adjusting plate.

[0024] 2、The utility model discloses a cleaning device for coal sorting machine, which comprises a supporting plate, a limiting plate, a plurality of springs, a protective box, a protective plate, a fixing plate, a connecting plate, a rotating shaft, a transmission shaft and an adjusting plate. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A perspective view of the cleaning device for coal sorting machine is provided.

[0026] Figure 2 A structure schematic view of the protective plate of the cleaning device for coal sorting machine is provided.

[0027] Figure 3 A structure schematic view of the fixing plate of the cleaning device for coal sorting machine is provided.

[0028] Figure 4 A structure schematic view of the fixing plate of the cleaning device for coal sorting machine is provided. Figure 3 An enlarged view of A in the middle.

[0029] Figure 5 A structure schematic view of the fixing plate of the cleaning device for coal sorting machine is provided.Figure 3 Enlarged view at B;

[0030] Figure 6 A structure diagram of the limiting plate of the cleaning device for the coal sorting machine is provided in the utility model.

[0031] Figure 7 A structure diagram of the limiting frame of the cleaning device for the coal sorting machine is provided in the utility model.

[0032] Legend:

[0033] 1, bottom plate; 2, protective box; 3, motor; 4, rotating shaft; 5, rotating plate; 6, transmission column; 7, sliding frame; 8, connecting plate; 9, connecting frame; 10, sliding plate; 11, fixed plate; 12, connecting block; 13, strip plate; 14, screw; 15, connecting frame; 16, T-shaped opening; 17, spring; 18, limiting plate; 19, supporting plate; 20, brush; 21, limiting frame; 22, fixed frame; 23, vertical plate; 24, coal sorting roller; 25, side plate; 26, square plate; 27, positioning shaft; 28, adjusting plate; 29, strip-shaped opening; 30, protective plate; 31, air cylinder; 32, push plate; 33, force guide plate; 34, transmission shaft. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] With reference to Figures 1 to 3 The utility model provides an embodiment: a kind of cleaning device for coal sorting machine, including two bottom plates 1, and bottom plate 1 provides support for coal sorting.The bottom side of one bottom plate 1 is fixedly connected with protective box 2, and the inside of protective box 2 is fixedly connected with driving assembly for providing power, and driving assembly is protected by protective box 2, such as water, dust etc.Driving assembly includes motor 3, and the outside of motor 3 is fixedly connected in the inside of protective box 2, and protective box 2 is connected with motor 3 by welding process, so that motor 3 can stably provide driving source.The driving end of motor 3 is fixedly connected with rotating shaft 4, and rotating shaft 4 is driven to rotate by driving motor 3.The outside of rotating shaft 4 is rotatably connected in the top end inside of protective box 2, and rotating shaft 4 can stably rotate by the limitation of protective box 2.

[0036] With reference to Figures 3 to 5The top side of the rotating shaft 4 is fixedly connected with a rotating plate 5, which is driven to rotate synchronously by the rotating shaft 4. The top side of the rotating plate 5 is fixedly connected with a transmission column 6, which is driven to rotate by the rotating plate 5. The outside of the transmission column 6 is slidingly connected with a sliding frame 7, which is driven to rotate by the transmission column 6, and then the sliding frame 7 converts the rotating force into a front and rear sliding force. The rear side of the sliding frame 7 is fixedly connected with a connecting plate 8, which is driven to slide synchronously by the sliding frame 7. The bottom side of the bottom plate 1 is fixedly connected with two connecting frames 9, which are connected with the bottom plate 1 by welding process, so that the connecting frame 9 can stably provide support. The inside of the plurality of connecting frames 9 is slidingly connected with a power transmission assembly, which is stably slid by the support of the connecting frame 9. The front and rear ends of the transmission assembly are fixedly connected with a plurality of connecting frames 15 through a plurality of screws 14, which are fixed by the screws 14 to facilitate disassembly and replacement of the connecting frame 15.

[0037] The transmission assembly includes a plurality of sliding plates 10, which are slidingly connected to the inside of the connecting frame 9, and are stably slid by the support of the connecting frame 9. The proximal side of the two sliding plates 10 is fixedly connected with a fixed plate 11, which is connected with the two sliding plates 10 in contact by welding process, thereby improving the stability of the connection. The rear side of the connecting plate 8 is fixedly connected to the front side of one of the fixed plates 11, achieving power transmission. The proximal side of the plurality of sliding plates 10 is fixedly connected with a connecting block 12, which is driven to slide synchronously by the sliding plate 10. The top side of the two connecting blocks 12 is fixedly connected with a strip plate 13, which is connected with the plurality of connecting blocks 12 in contact by welding process, thereby improving the stability of the connection. The inside of the two strip plates 13 is fixedly connected to the bottom front and rear ends of the plurality of connecting frames 15 by a plurality of screws 14, which are used to facilitate disassembly and replacement of the strip plate 13 and the connecting frame 15.

[0038] Referring to Figure 1 , Figure 3 and Figure 6, the inside of the adapter frame 15 is provided with a T-shaped opening 16, the T-shaped opening 16 provided in the inside of the adapter frame 15, the convex upward. The inner wall of the adapter frame 15 is fixedly connected with a plurality of springs 17, the springs 17 are fixed, so that the springs 17 can bear force uniformly. The top end of the plurality of springs 17 is fixedly connected with a limiting plate 18, the limiting plate 18 is forced to slide to extrude the spring 17, so that the spring 17 can store elastic potential energy, and then give the limiting plate 18 a force in the opposite direction to reset. The outside of the limiting plate 18 is slidably connected in the inside of the T-shaped opening 16, and can move up and down within the range of the T-shaped opening 16. The top side of the limiting plate 18 is fixedly connected with a support plate 19, the support plate 19 is limited by the limiting plate 18, to prevent the support plate 19 from falling off. The outside of the support plate 19 is slidably connected in the inside of the T-shaped opening 16, to ensure the stability of the movement track. The top side of the support plate 19 is fixedly connected with a plurality of brushes 20, and the brushes 20 are used for cleaning coal particles. The top side of the two bottom plates 1 is fixedly connected with a limiting frame 21 at the far end, and the bottom plate 1 is connected with the limiting frame 21 by welding process, so that the limiting frame 21 can be stably supported. The top side of the bottom plate 1 is fixedly connected with a fixed frame 22 at the middle, which also adopts a welding process, and can provide stable support for the fixed frame 22. The top side of the two bottom plates 1 is fixedly connected with a vertical plate 23 at the near end, and the inside of the two vertical plates 23 is rotatably connected with a plurality of coal selection rollers 24, which are used for coal screening and separation.

[0039] Referring to Figure 1 and Figure 7 , the right side of the two bottom plates 1 is fixedly connected with a side plate 25 at the bottom end, which is connected by a welding process, thereby providing stable support for the side plate 25. The right side of the vertical plate 23 is fixedly connected with a square plate 26, which also adopts a welding process, thereby providing stable support for the square plate 26. The bottom side of the square plate 26 is fixedly connected with a positioning shaft 27, which is connected by a welding process, so that the adjusting plate 28 can be adjusted. The outside of the positioning shaft 27 is rotatably connected with an adjusting plate 28, which is limited by the positioning shaft 27, so that the adjusting plate 28 can rotate around the positioning shaft 27 as the center. The top side of the adjusting plate 28 is provided with a strip-shaped opening 29. The right side of the two protective boxes 2 is fixedly connected with a protective plate 30 at the top end, which can block dust and other sundries from splashing;

[0040] The inner wall left side of the protection plate 30 is fixedly connected with a gas cylinder 31, and the gas cylinder 31 is used to provide a driving source of linear motion. The driving end of the gas cylinder 31 is fixedly connected with a push plate 32, and the push plate 32 is pushed to slide by driving the gas cylinder 31. The front and rear ends of the push plate 32 are rotatably connected with guide plates 33, and the guide plates 33 are driven to rotate by the push plate 32. The bottom side of the guide plate 33 is fixedly connected with a transmission shaft 34, and the rotating force is transmitted to the transmission shaft 34 through the guide plate 33, and an opening is formed in the bottom side of the protection plate 30 to limit the transmission shaft 34, so that the transmission shaft 34 can stably slide forward and backward. The bottom end of the transmission shaft 34 is slidably connected in the inside of the strip-shaped opening 29, and the transmission shaft 34 can drive the adjusting plate 28 to rotate around the positioning shaft 27 as the center.

[0041] Working principle: first, drive the motor 3 to drive the rotating shaft 4 to rotate, so as to drive the rotating plate 5 to rotate, then the rotating plate 5 will drive the transmission column 6 to rotate around the rotating shaft 4 as the center, the transmission column 6 pushes the sliding frame 7 to slide forward and backward, then the sliding frame 7 transmits the sliding force to the connecting plate 8, and the connecting plate 8 transmits the sliding force to the transmission assembly, so that the transmission assembly can slide forward and backward, at this time, two sliding plates 10 are connected by two fixed plates 11, and a plurality of sliding plates 10 are connected with strip plates 13 through connecting blocks 12, and two strip plates 13 are fixed with the connecting frame 15 through screws 14, at this time, the whole transmission assembly can slide forward and backward under the action of the connecting plate 8. With the forward and backward reciprocating sliding of the connecting frame 15, the support plate 19 can slide and push the limiting plate 18 to slide, and can also extrude a plurality of springs 17, so that the plurality of springs 17 can store elastic potential energy, and then the limiting plate 18 gives the support plate 19 and the brush 20 a force in the opposite direction to resist the coal roller 24, so that it can adapt to the wear of the coal roller 24, thereby improving the cleaning effect and improving the work efficiency.

[0042] The push plate 32 is pushed to slide by driving the gas cylinder 31, and then the push plate 32 drives the two end rotating guide plates 33 to rotate, and the rotating force is transmitted to the transmission shaft 34, and at this time the transmission shaft 34 will convert the rotating force into linear sliding force under the limitation of the protection plate 30, and then the transmission shaft 34 will drive the adjusting plate 28 to rotate around the positioning shaft 27 as the center, so as to adjust the distance between the two adjusting plates 28, so as to guide the coal to be collected into boxes of different sizes, thereby improving the application range of the device.

[0043] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A cleaning device for a coal separator, comprising two base plates (1), characterized in that: One of the bottom plate (1) bottom fixedly connected with the protection box (2), the protection box (2) inside fixedly connected with the drive assembly for providing power, the bottom plate (1) bottom fixedly connected with two connection frame (9), a plurality of the connection frame (9) inside slidingly connected with the transmission assembly, the transmission assembly front and rear ends are fixedly connected with a plurality of the adapter frame (15) through a plurality of screws (14), the adapter frame (15) inside is provided with T-shaped opening (16), the inner wall bottom of the adapter frame (15) is fixedly connected with a plurality of springs (17), a plurality of the spring (17) top fixedly connected with the limit plate (18), the limit plate (18) top fixedly connected with the support plate (19), the support plate (19) top fixedly connected with a plurality of brushes (20), two the top of the bottom plate (1) is fixedly connected with the vertical plate (23) near one end.

2. A cleaning device for a coal preparation plant according to claim 1, characterised in that: Two the right side bottom of the bottom plate (1) is fixedly connected with the side plate (25), the right side of the vertical plate (23) is fixedly connected with the square plate (26), the bottom of the square plate (26) is fixedly connected with the positioning shaft (27), the outside of the positioning shaft (27) is rotatably connected with the adjusting plate (28), two the right side top of the protection box (2) is fixedly connected with the protection plate (30), the inner wall left side of the protection plate (30) is fixedly connected with the air cylinder (31), the drive end of the air cylinder (31) is fixedly connected with the push plate (32), the front and rear ends of the push plate (32) are rotatably connected with the guide plate (33), the bottom of the guide plate (33) is fixedly connected with the transmission shaft (34).

3. A cleaning device for a coal preparation plant according to claim 1, characterised in that: Two the top of the bottom plate (1) is fixedly connected with the limit frame (21) far away from one end, the top of the bottom plate (1) is fixedly connected with the fixed frame (22) in the middle, two the inside of the vertical plate (23) is rotatably connected with a plurality of coal roller (24).

4. A cleaning device for a coal preparation plant according to claim 1, characterised in that: The drive assembly includes a motor (3), the outside of the motor (3) is fixedly connected in the inside of the protection box (2), the drive end of the motor (3) is fixedly connected with the rotating shaft (4), the top of the rotating shaft (4) is fixedly connected with the rotating plate (5), the top of the rotating plate (5) is fixedly connected with the transmission column (6), the outside of the transmission column (6) is slidingly connected with the sliding frame (7), the rear side of the sliding frame (7) is fixedly connected with the adapter plate (8).

5. A cleaning device for a coal preparation plant according to claim 4, characterised in that: The transmission assembly includes a plurality of sliding plates (10), the outside of the sliding plate (10) is slidingly connected in the inside of the connection frame (9), two the sliding plate (10) is fixedly connected with the fixed plate (11) near one side, a plurality of the sliding plate (10) is fixedly connected with the connecting block (12) near one side, two the top of the connecting block (12) is fixedly connected with the strip plate (13), two the inside of the strip plate (13) is fixedly connected with a plurality of the adapter frame (15) through a plurality of screws (14).

6. A cleaning device for a coal preparation plant according to claim 1, characterised in that: The outer part of the limiting plate (18) is slidably connected in the inner part of the T-shaped opening (16), and the outer part of the supporting plate (19) is slidably connected in the inner part of the T-shaped opening (16).

7. A cleaning device for a coal separator as claimed in claim 5, characterized in that: The rear side of the connecting plate (8) is fixedly connected to the front side of one of the fixing plates (11), and the outer part of the rotating shaft (4) is rotatably connected to the inner top end of the protection box (2).

8. A cleaning device for a coal preparation plant according to claim 2, characterised in that: The top side of the adjusting plate (28) is provided with a strip-shaped opening (29), the bottom end of the transmission shaft (34) is slidably connected in the inner part of the strip-shaped opening (29), and the outer parts of the two transmission shafts (34) are slidably connected in the inner parts of the front and rear ends of the protection plate (30).