Chain wheel shaft group for scraper

Abstract

The chain wheel shaft set comprises a driving part, a first bearing cylinder is arranged on the right side of the driving part, a connecting part is arranged on the right side of the first bearing cylinder, a second bearing cylinder is arranged on the right side of the connecting part, a sealing part is arranged on the right side of the second bearing cylinder, and a plurality of preformed holes are annularly formed in the middle of the connecting part. A plurality of arc-shaped blocks are annularly arranged in the middle of the connecting part, third fixing bolts are arranged at the four corners of the outer side of each arc-shaped block, and a plurality of gear teeth are fixedly connected to the outer portion of each arc-shaped block. The connecting part, the preformed holes, the arc-shaped blocks and the third fixing bolts are arranged, the connecting part is arranged in the middle of the driving rod, and the preformed holes are formed in the middle of the circumference of the connecting part; a plurality of arc-shaped blocks are arranged outside the connecting part in the circumferential direction, and a plurality of third fixing bolts are connected to the outer sides of the arc-shaped blocks in a threaded mode, so that the damaged arc-shaped blocks can be rapidly disassembled when gear teeth are damaged through independent installation of the arc-shaped blocks, other parts do not need to be disassembled, and the disassembling and replacing work efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the field of sprocket shaft groups, in particular to a sprocket shaft group for a scraper. Background Art

[0002] A scraper conveyor is a device that uses scraper chains to move within a closed trough to transport bulk materials. It is suitable for horizontal or inclined conveying of powdered, granular, and small-sized materials such as coal, ash, sand, and grain. Due to its simple structure, good sealing, easy installation and maintenance, large conveying capacity, and long conveying distance, scraper conveyors are widely used in industries such as coal, chemical, and metallurgy. The operating principle of a scraper conveyor is that when the head transmission unit is activated, the sprocket on the head shaft rotates, causing the scraper chain to circulate and move the material along the chute. Driven by the scraper chain, the material moves forward along the trough until it reaches the discharge port. In coal mines, scraper conveyors not only transport coal but also serve as the operating track for coal mining machines, making them an indispensable part of modern coal mining technology.

[0003] The scraper sprocket assembly is a crucial component of the scraper conveyor and transfer machine head. It transmits the motor's power to the sprocket via a reducer, which in turn drives the scraper through the chain in the central trough, transporting coal and other materials. The reliability of the sprocket assembly directly determines the proper operation of the scraper conveyor and has a significant impact on the production safety and economic benefits of coal mines. During the use of the scraper sprocket assembly, the gear teeth are the most vulnerable components. Replacing damaged gear teeth requires disassembling other components before removing the gear ring, a time-consuming process that impacts work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a sprocket shaft group for a scraper, by arranging a connecting part in the middle of the driving rod, arranging a plurality of reserved holes in the circumferential middle of the connecting part, arranging a plurality of arc blocks on the circumferential outside of the connecting part, and threading a plurality of third fixing bolts on the outer side of the arc blocks. This function can quickly disassemble the damaged arc blocks when the gear teeth are damaged by independently installing the arc blocks, without disassembling other parts, so that the disassembly and replacement work efficiency is higher.

[0005] To achieve the above-mentioned purpose, a sprocket shaft group for a scraper is provided, including a driving part, a first bearing cylinder is provided on the right side of the driving part, a connecting part is provided on the right side of the first bearing cylinder, a slot is provided inside the connecting part, a second bearing cylinder is provided on the right side of the connecting part, a closing part is provided on the right side of the second bearing cylinder, a plurality of reserved holes are provided in a circumferential direction in the middle part of the connecting part, a plurality of arc blocks are provided in a circumferential direction in the middle part of the connecting part, a third fixing bolt is provided at each of the four corners of the outer side of the arc block, and the third fixing bolt passes through the arc block, the third fixing bolt and the reserved hole are arranged correspondingly, and a plurality of gear teeth are fixedly connected to the outside of the arc block.

[0006] According to the sprocket shaft assembly for the scraper, a motor is provided inside the driving portion, and a driving rod is fixedly connected to the output end of the motor. The driving rod passes through the first bearing cylinder, the connecting portion, and the second bearing cylinder.

[0007] According to the sprocket shaft assembly for scraper, a clamping block is provided on the outer side of the middle portion of the driving rod, and the clamping block and the clamping groove are arranged correspondingly. This arrangement is used to clamp the driving rod and the connecting part, thereby driving the connecting part to rotate.

[0008] According to the sprocket shaft assembly for the scraper, a plurality of second fixing bolts are provided in a circumferential direction on one side of the driving portion and the closing portion away from the connecting portion, and the second fixing bolts are respectively threadedly connected to the first bearing cylinder and the second bearing cylinder.

[0009] According to the sprocket shaft assembly for the scraper, a bearing support is provided inside the closed portion, and a plurality of first fixing bolts are provided on the right side of the connecting portion, and the first fixing bolts are threadedly connected to the bearing support.

[0010] According to the sprocket shaft assembly for the scraper, a bearing is fixedly connected to the interior of the bearing support, and the bearing is plugged into the driving rod.

[0011] According to the scraper sprocket shaft assembly, a reserved cavity is provided inside the first bearing cylinder, and the reserved cavity extends through the first bearing cylinder. A sealing cap is provided in the middle of the top surface of the reserved cavity. This configuration is used to provide lubricating oil inside the reserved cavity to reduce wear on the drive rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] By setting a connecting part, a reserved hole, an arc block, and a third fixing bolt, by setting a connecting part in the middle of the driving rod, setting a plurality of reserved holes in the circumferential middle of the connecting part, setting a plurality of arc blocks on the circumferential outside of the connecting part, and threading a plurality of third fixing bolts on the outer side of the arc block, this function can quickly disassemble the damaged arc block when the gear teeth are damaged by independently installing the arc block, without the need to disassemble other parts, thereby making the disassembly and replacement work more efficient.

[0014] By setting a reserved cavity, a sealing cover, a bearing support, a bearing, and a first fixing bolt, by setting a reserved cavity inside the first bearing cylinder, setting a sealing cover on the top of the reserved cavity, setting a bearing support inside the closed part, setting a bearing inside the bearing support, and setting several first fixing bolts inside the bearing support, this function can make the driving rod rotate more smoothly, improve the rotation efficiency, and extend the service life of the driving rod.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a three-dimensional structural diagram of the sprocket shaft assembly for the scraper conveyor of the utility model;

[0018] Figure 2 This is a front cross-sectional view of a sprocket shaft assembly for a scraper conveyor according to the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the connection part of the sprocket shaft assembly for the scraper conveyor of the utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the drive rod of the sprocket shaft assembly for the scraper conveyor of the utility model;

[0021] Figure 5 The utility model is a sprocket shaft assembly for a scraper Figure 1 A magnified view of point A;

[0022] Figure 6 The utility model is a sprocket shaft assembly for a scraper Figure 2 Enlarged view of point B.

[0023] In the figure: 1. driving part; 2. first bearing cylinder; 3. second bearing cylinder; 4. closing part; 5. first fixing bolt; 6. second fixing bolt; 7. motor; 8. reserved cavity; 9. connecting part; 10. reserved hole; 11. slot; 12. driving rod; 13. clamping block; 14. arc block; 15. gear tooth; 16. third fixing bolt; 17. blocking cover; 18. bearing support; 19. bearing. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0025] See also Figures 1-6As shown, the utility model provides a technical solution: a sprocket shaft group for a scraper, including a driving part 1, a first bearing cylinder 2 is provided on the right side of the driving part 1, a reserved cavity 8 is provided inside the first bearing cylinder 2, and the reserved cavity 8 passes through the first bearing cylinder 2, the reserved cavity 8 is used to store lubricating oil, so that it flows into the driving rod 12, so that the driving rod 12 rotates more smoothly and its service life is extended, a blocking cover 17 is provided in the middle of the top surface of the reserved cavity 8, and the blocking cover 17 is used to block the reserved cavity 8 to prevent debris and dust from entering and prevent lubricating oil from flowing out. A connecting part 9 is provided on the right side of the first bearing cylinder 2. A card slot 11 is provided inside the connecting part 9, a second bearing cylinder 3 is provided on the right side of the connecting part 9, a closing part 4 is provided on the right side of the second bearing cylinder 3, a bearing support 18 is provided inside the closing part 4, and a plurality of first fixing bolts 5 are provided on the right side of the connecting part 9. The first fixing bolts 5 are threadedly connected to the bearing support 18, and a bearing 19 is fixedly connected to the inside of the bearing support 18. The bearing 19 is plugged into the driving rod 12. A plurality of second fixing bolts 6 are circumferentially provided on the side of the driving part 1 and the closing part 4 away from the connecting part 9. The second fixing bolts 6 are threadedly connected to the first bearing cylinder 2 and the second bearing cylinder 3 respectively.

[0026] A motor 7 is provided inside the driving part 1, and a driving rod 12 is fixedly connected to the output end of the motor 7. The driving rod 12 passes through the first bearing cylinder 2, the connecting part 9, and the second bearing cylinder 3. A clamping block 13 is provided on the outer side of the middle part of the driving rod 12, and the clamping block 13 and the clamping groove 11 are correspondingly arranged. A plurality of reserved holes 10 are provided in an annular direction in the middle part of the connecting part 9, and a plurality of arc blocks 14 are provided in an annular direction in the middle part of the connecting part 9. A third fixing bolt 16 is provided at the four corners of the outer side of the arc block 14, and the third fixing bolt 16 passes through the arc block 14. The third fixing bolt 16 and the reserved hole 10 are correspondingly arranged. A plurality of gear teeth 15 are fixedly connected to the outside of the arc block 14.

[0027] Working principle: During installation, the driving rod 12 is fixedly connected to the output end of the motor 7 inside the driving part 1. The driving rod 12 passes through the first bearing cylinder 2, the connecting part 9, and the second bearing cylinder 3 in sequence. The clamping block 13 provided in the middle of the driving rod 12 is clamped with the clamping groove 11 provided inside the connecting part 9. The right end of the driving rod 12 is inserted into the bearing 19 inside the bearing support 18. The bearing support 18 is fixed to the closing part 4 by the first fixing bolt 5, and then the driving part 1 and the first bearing cylinder 2, the closing part 4 and the second bearing cylinder 3 are fixed by the second fixing bolt 6. Then, the arc block 14 is fixed to the connecting part 9 by the third fixing bolt 16. Gear teeth 15 are provided on the outside of the arc block 14. A reserved cavity 8 is provided inside the first bearing cylinder 2, and lubricating oil is provided inside the reserved cavity 8 to protect the driving rod 12 and make it rotate more smoothly.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A sprocket shaft assembly for a scraper, comprising a driving portion (1), a first bearing cylinder (2) being provided on the right side of the driving portion (1), a connecting portion (9) being provided on the right side of the first bearing cylinder (2), a slot (11) being provided inside the connecting portion (9), a second bearing cylinder (3) being provided on the right side of the connecting portion (9), a closing portion (4) being provided on the right side of the second bearing cylinder (3), and characterized in that: A plurality of reserved holes (10) are provided in a circumferential direction in the middle of the connecting portion (9), a plurality of arc blocks (14) are provided in a circumferential direction in the middle of the connecting portion (9), a third fixing bolt (16) is provided at each of the four outer corners of the arc block (14), and the third fixing bolt (16) passes through the arc block (14), the third fixing bolt (16) and the reserved holes (10) are provided in a corresponding manner, and a plurality of gear teeth (15) are fixedly connected to the outside of the arc block (14).

2. The sprocket shaft assembly for a scraper according to claim 1, characterized in that: A motor (7) is provided inside the driving portion (1), and an output end of the motor (7) is fixedly connected to a driving rod (12), which passes through the first bearing cylinder (2), the connecting portion (9), and the second bearing cylinder (3).

3. The sprocket shaft assembly for a scraper according to claim 2, characterized in that: A clamping block (13) is provided on the outer side of the middle portion of the driving rod (12), and the clamping block (13) and the clamping slot (11) are correspondingly arranged.

4. The sprocket shaft assembly for a scraper according to claim 1, characterized in that: A plurality of second fixing bolts (6) are provided in a circumferential direction on one side of the driving portion (1) and the closing portion (4) away from the connecting portion (9), and the second fixing bolts (6) are respectively threadedly connected to the first bearing cylinder (2) and the second bearing cylinder (3).

5. The sprocket shaft assembly for a scraper according to claim 1, characterized in that: A bearing support (18) is provided inside the closing portion (4), and a plurality of first fixing bolts (5) are provided on the right side of the connecting portion (9), wherein the first fixing bolts (5) and the bearing support (18) are threadedly connected.

6. The sprocket shaft assembly for a scraper according to claim 5, characterized in that: A bearing (19) is fixedly connected to the interior of the bearing support (18), and the bearing (19) is plugged into the driving rod (12).

7. The sprocket shaft assembly for a scraper according to claim 1, characterized in that: A reserved cavity (8) is provided inside the first bearing cylinder (2), and the reserved cavity (8) passes through the first bearing cylinder (2). A sealing cover (17) is provided in the middle of the top surface of the reserved cavity (8).

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