Self-cleaning device for accumulated coal of bucket teeth of bucket wheel machine

Abstract

The utility model discloses a self-cleaning device for accumulated coal of bucket teeth of a bucket wheel machine, which relates to the technical field of bucket wheel machines and comprises a fixing frame, a rotating roller is rotatably connected to the middle of the fixing frame, and a plurality of fixing blocks are fixedly connected to the outer side of the rotating roller. The switch valve is opened, gas is exhausted into the rotary joint through the air pump, then the gas enters the main pipe through the rotary joint and then enters the air bag through the switch valve, so that the air bag is expanded, the air bag pushes the scraping block to slide along the interior of the bucket wheel teeth, and coal on the inner walls of the bucket wheel teeth is scraped off; the traction rope drives the winding roller to rotate, the scraping block drives the movable sleeve to move along the outer side of the bucket wheel teeth, movement of the scraping block is limited, and therefore accumulated coal in the bucket wheel teeth can be self-cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bucket wheel machine, concretely to a self-cleaning device of bucket wheel machine bucket tooth coal accumulation. BACKGROUND

[0002] The bucket wheel machine is a kind of continuous conveying high-efficiency handling machinery for both stacking and taking materials in large dry bulk cargo yard, which is composed of conveying arm, bucket wheel at the front end of conveying arm, rack and running mechanism, and when taking materials, materials are taken by bucket wheel and sent out through conveying arm, and it is often used in coal mine, but coal ash in coal mine can adhere to bucket wheel, and after more coal ash adheres to bucket wheel, it will affect the conveying efficiency of coal. CONTENT OF THE UTILITY MODEL

[0003] In view of the deficiencies of prior art, the utility model provides a self-cleaning device of bucket wheel machine bucket tooth coal accumulation, which solves the problems in the above background art.

[0004] To achieve the above purpose, the utility model realizes the following technical scheme: a self-cleaning device of bucket wheel machine bucket tooth coal accumulation, including fixed frame, the middle part of the fixed frame is rotatably connected with rotating roller, the outer side of the rotating roller is fixedly connected with a plurality of fixed blocks, the one end of the fixed block is fixedly connected with bucket tooth, the outer side of the bucket tooth is movably connected with moving sleeve, the inner side of the moving sleeve and inside the bucket tooth are fixedly connected with scraper block, one end of the inner cavity of the bucket tooth is fixedly connected with air bag, one end of the air bag is fixedly connected with one side of the scraper block, the inside of the fixed block is fixedly connected with on-off valve, one end of the on-off valve extends to the inside of the air bag, the inside of the rotating roller is installed with main pipe, one end of the on-off valve is connected with the inside of the main pipe.

[0005] Preferably, the inside of one end of the fixed frame is provided with annular groove, one end of the rotating roller and inside the annular groove are fixedly connected with sealing ring, one side of the inner cavity of the annular groove is fixedly connected with scanner, one side of the sealing ring and one end of the on-off valve are fixedly connected with label.

[0006] Preferably, the side of the fixed frame is installed with swivel joint, one end of the rotating roller is connected with one end of the swivel joint, the side of the fixed frame is fixedly connected with air pump.

[0007] Preferably, one end of the air pump is connected with the other end of the swivel joint, the air pump is connected with the inside of the main pipe through the swivel joint.

[0008] Preferably, the inside of the fixed block and both sides of the on-off valve are fixedly connected with winding box, the inside of the winding box is rotatably connected with winding roller, the outer side of the winding roller is wound with traction rope, one end of the traction rope extends to the inside of the bucket tooth and is fixedly connected with one end of the scraper block.

[0009] Preferably, a side of the winding box cavity is provided with a spring, and one end of the winding roller is connected with the spring.

[0010] The utility model provides a self -cleaning device of bucket wheel machine bucket tooth coal, has the following beneficial effects:

[0011] 1. The self -cleaning device of bucket wheel machine bucket tooth coal, through being provided with scraper, gasbag and moving sleeve, switch valve opens, gas is discharged to the rotary joint inside through the air pump, then gas enters to the inside of the total pipe through the rotary joint, then enters to the inside of the gasbag through the switch valve, makes the gasbag expand, makes the gasbag push scraper slide along the inside of bucket wheel tooth, scrapes coal in the inside wall of bucket wheel tooth, moves through scraper traction rope, makes the traction rope drive winding roller rotation, moves scraper through scraper drive moving sleeve along the outside of bucket wheel tooth, limits the movement of scraper, to be able to self -cleaning to the coal in the inside of bucket wheel tooth.

[0012] 2. The self -cleaning device of bucket wheel machine bucket tooth coal, through being provided with winding box, winding roller and traction rope, after a period of time, the air pump starts, and the gas in the gasbag is extracted to the inside of the total pipe through the switch valve, then is sucked to the inside of the air pump through the rotary joint, then is discharged to the outside environment through the air pump, the gasbag contracts, makes the gasbag drive scraper reset movement, simultaneously, the winding roller resets rotation driven by the spring, makes the winding roller wind the traction rope, makes scraper move to the initial position, can assist the scraper to be pulled back to the initial position. ACCURACY OF DRAWINGS

[0013] Figure 1 It is the front structure schematic diagram of the utility model;

[0014] Figure 2 It is the inside structure schematic diagram of the rotary roller and bucket wheel tooth of the utility model;

[0015] Figure 3 It is the inside structure schematic diagram of the fixed frame overhead portion of the utility model;

[0016] Figure 4 It is the inside structure schematic diagram of the winding box side view portion of the utility model;

[0017] Figure 5 It is the A place enlarged view of the utility model Figure 2 .

[0018] In the drawing: 1, fixed frame; 2, fixed block; 3, moving sleeve; 4, bucket wheel tooth; 5, air pump; 6, rotary joint; 7, scraper; 8, gasbag; 9, winding box; 10, winding roller; 11, traction rope; 12, switch valve; 13, total pipe; 14, rotary roller; 15, spring; 16, annular groove; 17, sealing ring; 18, label; 19, scanner. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a self-cleaning device for coal accumulation in bucket teeth of a bucket wheel excavator, including a fixed frame 1, a rotating roller 14 rotatably connected to the middle of the fixed frame 1, a plurality of fixed blocks 2 fixedly connected to the outer side of the rotating roller 14, a bucket wheel tooth 4 fixedly connected to one end of each fixed block 2, a movable sleeve 3 movably connected to the outer side of the bucket wheel tooth 4, a scraper 7 fixedly connected to the inner side of the movable sleeve 3 and located inside the bucket wheel tooth 4, an air bladder 8 fixedly connected to one end of the inner cavity of the bucket wheel tooth 4, one end of each air bladder 8 fixedly connected to one side of the scraper 7, a switch valve 12 fixedly connected inside each fixed block 2, one end of each switch valve 12 extending into the air bladder 8, a main pipe 13 installed inside the rotating roller 14, and one end of the switch valve 12 communicating with the inside of the main pipe 13.

[0022] An annular groove 16 is provided inside one end of the fixed frame 1. A sealing ring 17 is fixedly connected to one end of the rotating roller 14 inside the annular groove 16. A scanner 19 is fixedly connected to one side of the inner cavity of the annular groove 16. A label 18 is fixedly connected to one side of the sealing ring 17 at one end of the switch valve 12. The annular groove 16 can be sealed by the sealing ring 17 to prevent coal ash from entering the interior of the annular groove 16.

[0023] A rotary joint 6 is installed on one side of the fixed frame 1. One end of the rotating roller 14 is connected to one end of the rotary joint 6. An air pump 5 is fixedly connected to one side of the fixed frame 1. A controller is installed on one side of the fixed frame 1 to control the operation of the device.

[0024] One end of the air pump 5 is connected to the other end of the rotary joint 6. The air pump 5 is connected to the inside of the main pipe 13 through the rotary joint 6, and can input gas into the main pipe 13.

[0025] Inside the fixed block 2 and on both sides of the switch valve 12, there are fixed winding boxes 9. Inside the winding boxes 9, there are rotatably connected winding rollers 10. The outer side of the winding rollers 10 is wound with traction ropes 11. One end of the traction ropes 11 extends into the inside of the bucket wheel teeth 4 and is fixedly connected to one end of the scraper block 7. The movement of the scraper block 7 can be limited by the traction ropes 11 to prevent the scraper block 7 from coming out of the inside of the bucket wheel teeth 4.

[0026] Example 2

[0027] Please seeFigure 1 、 Figure 2 、 Figure 4 With Figure 5 The utility model provides a technical scheme: one side of the inner chamber of winding box 9 is provided with clockwork 15, one end of winding roller 10 is connected with clockwork 15, after the contraction of air bag 8, winding roller 10 can drive clockwork 15 to reset rotation, so that clockwork 15 winds up traction rope 11, thereby can pull scraper block 7 to reset and move to the initial position.

[0028] In summary, the self-cleaning device for the bucket wheel teeth coal accumulation, when the rotating roller 14 rotates, the bucket wheel teeth 4 on the surface of the rotating roller 14 dig up the coal, when the bucket wheel teeth 4 drive the coal to rotate to the upper side of the rotating roller 14, the coal falls out of the bucket wheel teeth 4 under the action of gravity, at the same time, the rotating roller 14 drives the sealing ring 17 to rotate, so that the sealing ring 17 drives the label 18 to rotate, when the scanner 19 scans the label 18 and obtains the information on the label 18, the corresponding bucket wheel teeth 4 is obtained, and the bucket wheel teeth 4 rotates to the cleaning position, then the switch valve 12 is opened, the gas is discharged into the rotating joint 6 by the air pump 5, then the gas enters the main pipe 13 by the rotating joint 6, then enters the air bag 8 by the switch valve 12, so that the air bag 8 expands, the air bag 8 drives the scraper block 7 to slide along the inside of the bucket wheel teeth 4, and the coal on the inner wall of the bucket wheel teeth 4 is scraped off, the traction rope 11 is moved by the traction of the scraper block 7, so that the traction rope 11 drives the winding roller 10 to rotate, the moving sleeve 3 is moved along the outside of the bucket wheel teeth 4 by the scraper block 7, and the movement of the scraper block 7 is limited, after a period of time, the air pump 5 is started, the gas in the air bag 8 is sucked out by the switch valve 12 and enters the main pipe 13, then is sucked into the air pump 5 by the rotating joint 6, then is discharged to the outside environment by the air pump 5, the air bag 8 is contracted, the air bag 8 drives the scraper block 7 to reset and move, at the same time, the clockwork 15 drives the winding roller 10 to reset and rotate, so that the winding roller 10 winds up the traction rope 11, and the scraper block 7 moves to the initial position.

[0029] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A self-cleaning device for the coal accumulation of the bucket teeth of a bucket wheel machine, comprising a stationary frame (1), characterized in that: The middle part of the fixing frame (1) is rotationally connected with a rotating roller (14), the outer side of the rotating roller (14) is fixedly connected with a plurality of fixed blocks (2), one end of the fixed block (2) is fixedly connected with a bucket tooth (4), the outer side of the bucket tooth (4) is movably connected with a moving sleeve (3), the inner side of the moving sleeve (3) and inside the bucket tooth (4) are fixedly connected with a scraping block (7), one end of the inner cavity of the bucket tooth (4) is fixedly connected with an air bag (8), one end of the air bag (8) is fixedly connected with one side of the scraping block (7), the inside of the fixed block (2) is fixedly connected with a switch valve (12), one end of the switch valve (12) extends into the inside of the air bag (8), and the inside of the rotating roller (14) is provided with a main pipe (13).

2. A self-cleaning device for coal accumulation on the teeth of a bucket wheel machine according to claim 1, characterized in that The inside of one end of the fixing frame (1) is provided with an annular groove (16), one end of the rotating roller (14) and inside the annular groove (16) are fixedly connected with a sealing ring (17), and one side of the inner cavity of the annular groove (16) is fixedly connected with a scanner (19).

3. A self-cleaning device for coal accumulation on the teeth of a bucket wheel machine according to claim 1, characterized in that: One side of the fixing frame (1) is provided with a rotary joint (6), one end of the rotating roller (14) is connected with one end of the rotary joint (6), and one side of the fixing frame (1) is fixedly connected with an air pump (5).

4. A self-cleaning device for coal accumulation on the teeth of a bucket wheel machine according to claim 3, characterized in that: One end of the air pump (5) is connected with the other end of the rotary joint (6), and the air pump (5) is connected with the inside of the main pipe (13) through the rotary joint (6).

5. A self-cleaning device for coal accumulation on the teeth of a bucket wheel machine according to claim 4, characterized in that: The inside of the fixed block (2) and on both sides of the switch valve (12) are fixedly connected with a winding box (9), and the inside of the winding box (9) is rotationally connected with a winding roller (10).

6. A self-cleaning device for coal accumulation on the teeth of a bucket wheel machine according to claim 5, characterized in that: One side of the inner cavity of the winding box (9) is provided with a clockwork spring (15), and one end of the winding roller (10) is connected with the clockwork spring (15).

7. A self-cleaning device for coal accumulation on the teeth of a bucket wheel machine according to claim 5, characterized in that: One side of the fixing frame (1) is provided with a controller.

8. A self-cleaning device for coal accumulation on the teeth of a bucket wheel machine according to claim 2, characterized in that: One side of the sealing ring (17) and one end of the switch valve (12) are fixedly connected with a label (18).

9. A self-cleaning device for coal accumulation on the teeth of a bucket wheel machine according to claim 6, characterized in that: The outer side of the winding roller (10) is wound with a traction rope (11), one end of the traction rope (11) extends into the inside of the bucket tooth (4) and is fixedly connected with one end of the scraping block (7).

10. A self-cleaning device for coal accumulation on the teeth of a bucket wheel machine according to claim 1, characterized in that: One end of the switch valve (12) is connected with the inside of the main pipe (13).

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