A special hoisting device for replacing a ball mill lining plate

By designing a hoisting device that includes a traction table, a motor, a winding reel, and a clamping assembly, the problem of traditional hoisting devices being unable to securely hold ball mill liners was solved, achieving stable hoisting of the liners, convenient installation, and safe and efficient operation.

CN224547881UActive Publication Date: 2026-07-24JIAYUGUAN DAYOU JIACHENG CONSTR & INSTALLATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAYUGUAN DAYOU JIACHENG CONSTR & INSTALLATION CO LTD
Filing Date
2025-06-17
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional hoisting devices are difficult to use to secure the ball mill liner, and are inconvenient to fit against the inner wall of the cylinder, resulting in installation difficulties, high labor intensity, and high safety risks.

Method used

A hoisting device including a traction platform, a motor, a reel, and a clamping assembly was designed. The liner is hoisted stably by combining the clamp, locking bolt, and suspension rope. The motor drives the reel to wind up the traction rope, and the slide and roller are used for suspension and position adjustment. A cleaning brush assists in cleaning up debris.

Benefits of technology

It improves the stability and convenience of lining plate hoisting, reduces labor intensity and safety risks, and shortens the maintenance cycle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hoist and mount device special for ball mill lining plate replacement, specifically relates to hoist and mount device technical field, including traction platform, motor and winding wheel, the right side of traction platform is installed with motor, the output of motor extends to the inside of traction platform, the output of motor is installed with winding wheel, the outside wall of winding wheel is installed with traction rope, and the bottom of traction rope is provided with lining plate use clamping subassembly. The utility model discloses be provided with the clamping station, and the bottom end of traction rope is inserted to the inside of the rope cover of clamping station top, and the fixed peg of side end is tightened, and the surface of traction rope is resisted, and the connecting operation of traction rope and clamping station middle is completed, and the two groups of bottom plate of clamping station bottom side are slightly greater than the cross section of lining plate, and after lining plate is inserted to the inside of two groups of bottom plate, the locking peg of both sides is tightened, and the surface of lining plate is resisted to the front end of locking peg, can complete the clamping fixed operation of lining plate, and the convenience when the hoist and mount device fixed lining plate is realized.
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Description

Technical Field

[0001] This utility model relates to the field of hoisting device technology, specifically a special hoisting device for replacing ball mill liners. Background Technology

[0002] Ball mill liners are used to protect the mill body from direct impact and friction between the grinding media and materials. Different types of liners can also be used to adjust the movement of the grinding media, enhancing their crushing effect on materials. This helps improve the grinding efficiency of the ball mill, increase output, and reduce metal consumption. The liners are installed inside the mill body, and due to the arc shape of the inside, installation is relatively difficult. This device is a special lifting device for replacing ball mill liners, used to lift and assist in the installation operation. Working inside the ball mill body is a confined space; traditional manual installation methods are labor-intensive, have high safety risks, and long maintenance cycles. Using machinery to replace manual labor improves labor productivity.

[0003] When hoisting the liner, the hoisting device usually puts the sling on the outside of the liner and pulls the sling with the traction rope to move the liner up. When hoisting the liner in this way, the stability of the liner is poor. In addition, because the sling is looped on the outside of the liner, it is not convenient for the liner to fit against the inner wall of the cylinder.

[0004] Therefore, a special hoisting device for replacing ball mill liners is needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a special hoisting device for replacing ball mill liners, so as to solve the problem mentioned in the background art that the hoisting device is not convenient for fixing the liners.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a special hoisting device for replacing ball mill liners, comprising a traction platform, a motor, and a winding reel. The motor is mounted on the right side of the traction platform, with its output end extending to the inner side of the traction platform. A winding reel is mounted on the output end of the motor, and a traction rope is mounted on the outer wall of the winding reel. A liner clamping assembly is provided at the bottom end of the traction rope. The clamping assembly includes a rope sleeve, a fixing hole, a fixing bolt, a clamping platform, a base plate, a locking platform, a locking hole, and a locking bolt. A rope sleeve is provided on the outer side of the bottom end of the traction rope. A fixing hole is provided on the right surface of the rope sleeve, and a fixing bolt is provided inside the fixing hole. The fixing bolt extends to the inside of the rope sleeve on the left side. A clamping platform is fixed at the bottom end of the rope sleeve, and a base plate is fixed at the bottom end of the clamping platform. A locking platform is fixed on the outer wall of the base plate, and a locking hole is provided inside the locking platform. A locking bolt is provided inside the locking hole.

[0007] As a further technical solution of this utility model, two sets of base plates are fixed at the bottom end of the clamping platform, and the two sets of base plates are symmetrically distributed.

[0008] As a further technical solution of this utility model, the locking hole is provided with an internal thread, and the surface of the locking bolt is provided with an external thread.

[0009] As a further technical solution of this utility model, a suspension platform is fixed to the top of the traction platform, a suspension hole is provided on the surface of the suspension platform, a hook is provided inside the suspension hole, and a slide is fixed to the top of the hook.

[0010] As a further technical solution of this utility model, the slide table is movably installed with rollers, and the bottom end of the rollers is provided with a suspension rope.

[0011] As a further technical solution of this utility model, a limiting platform is installed at the bottom of the traction platform, and a cleaning brush is installed on the inner side wall of the limiting platform.

[0012] As a further technical solution of this utility model, two sets of limiting platforms are installed at the bottom of the traction platform, and the two sets of limiting platforms are distributed in parallel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up a clamping platform, the bottom end of the traction rope is inserted into the rope sleeve at the top of the clamping platform, and the fixing bolts on the side are tightened and pressed against the surface of the traction rope, thus completing the connection operation between the traction rope and the clamping platform. The two sets of bottom plates on the bottom side of the clamping platform are slightly larger than the cross-section of the liner plate. After the liner plate is inserted into the two sets of bottom plates, the locking bolts on both sides are tightened, and the front end of the locking bolts presses against the surface of the liner plate, thus completing the clamping and fixing operation of the liner plate, realizing the convenience of fixing the liner plate in this hoisting device.

[0014] With the addition of a sliding platform and a suspension rope, the two sides of the suspension rope are fixed to the inside of the cylinder with the assistance of bolts or pins. The sliding platform is movably mounted on the suspension rope with the assistance of rollers and can move along the suspension rope. The hook on the bottom side of the sliding platform cooperates with the suspension hole on the surface of the suspension platform at the top of the traction platform to complete the suspension operation of the device, thus realizing the suspension installation function of the hoisting device.

[0015] By setting up limiting platforms and cleaning brushes, two sets of limiting platforms are distributed at the bottom of the traction platform. The gap between them allows the traction rope to slide. A cleaning brush is installed on the inner side of the limiting platform. When the traction rope slides up and down along the inner side of the limiting platform, the inner cleaning brush comes into contact with the traction rope, which can help clean its surface and reduce the adhesion of debris. This realizes the auxiliary cleaning function of the traction rope when the hoisting device is used. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a front view structural diagram of the present utility model;

[0018] Figure 3 This is a front view cross-sectional structural diagram of the clamping platform of this utility model;

[0019] Figure 4 This is a front view sectional structural diagram of the slide table and traction table of this utility model;

[0020] Figure 5 For the present utility model Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. Traction platform; 2. Motor; 3. Winding reel; 4. Traction rope; 5. Rope loop; 6. Fixing hole; 7. Fixing bolt; 8. Clamping platform; 9. Base plate; 10. Locking platform; 11. Locking hole; 12. Locking bolt; 13. Suspension platform; 14. Suspension hole; 15. Hook; 16. Slide table; 17. Roller; 18. Suspension rope; 19. Limiting platform; 20. Cleaning brush. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5This utility model provides an embodiment of a special hoisting device for replacing ball mill liners, comprising a traction platform 1, a motor 2, and a winding reel 3. The motor 2 is mounted on the right side of the traction platform 1, with its output end extending to the inner side of the traction platform 1. The winding reel 3 is mounted on the output end of the motor 2, and a traction rope 4 is mounted on the outer side wall of the winding reel 3. A liner clamping assembly is provided at the bottom end of the traction rope 4. The clamping assembly includes a rope sleeve 5, a fixing hole 6, a fixing bolt 7, a clamping platform 8, a base plate 9, a locking platform 10, a locking hole 11, and a locking bolt 12. A liner clamping assembly is provided on the outer side of the bottom end of the traction rope 4. There is a rope loop 5. A fixing hole 6 is provided on the right side surface of the rope loop 5. A fixing bolt 7 is provided inside the fixing hole 6. The left side of the fixing bolt 7 extends into the inside of the rope loop 5. A clamping platform 8 is fixed at the bottom end of the rope loop 5. A base plate 9 is fixed at the bottom end of the clamping platform 8. Two sets of base plates 9 are fixed at the bottom end of the clamping platform 8. The two sets of base plates 9 are symmetrically distributed. A locking platform 10 is fixed on the outer wall of the base plate 9. A locking hole 11 is provided inside the locking platform 10. A locking bolt 12 is provided inside the locking hole 11. The locking hole 11 has an internal thread. The surface of the locking bolt 12 has an external thread.

[0024] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, when in use, after the bottom plate 9 at the bottom end of the clamping platform 8 is clamped on the outside of the liner, the locking bolt 12 on the outside of the bottom plate 9 is rotated, and the front end of the locking bolt 12 abuts against the surface of the liner, thus completing the clamping and fixing operation of the liner.

[0025] A suspension platform 13 is fixed to the top of the traction platform 1. A suspension hole 14 is provided on the surface of the suspension platform 13. A hook 15 is provided inside the suspension hole 14. A slide 16 is fixed to the top of the hook 15. A roller 17 is movably installed inside the slide 16. A suspension rope 18 is provided at the bottom of the roller 17.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, when in use, the suspension rope 18 is first fixed. The suspension rope 18 is taut and stretched at a higher position inside the cylinder by bolts or pins on both sides. At the same time, a slide 16 is installed on the suspension rope 18. The roller 17 on the inner side of the slide 16 presses against the surface of the suspension rope 18, which can assist the slide 16 to move along the suspension rope 18. Then, the hook 15 on the bottom side cooperates with the suspension platform 13 on the top of the traction platform 1 to complete the suspension operation of the device.

[0027] A limiting platform 19 is installed at the bottom inside the traction platform 1. Two sets of limiting platforms 19 are installed at the bottom inside the traction platform 1. The two sets of limiting platforms 19 are distributed in parallel. A cleaning brush 20 is installed on the inner side wall of the limiting platform 19.

[0028] Specifically, such as Figure 1 , Figure 4 and Figure 5 As shown, during use, two sets of limiting platforms 19 are distributed at the opening position on the bottom side of the traction platform 1. The traction rope 4 passes through the two sets of limiting platforms 19, which can help limit the traction rope 4. At the same time, the cleaning brush 20 inside the limiting platform 19 can also help clean any debris that may be attached to the surface of the traction rope 4 during the contact process with the traction rope 4.

[0029] Working Principle: The interior of the ball mill cylinder is a confined space. Lighting voltage within this space should be ≤36V (safe voltage). In damp or confined spaces, a voltage ≤12V (safe voltage) should be used. Handheld power tools exceeding the safe voltage must be equipped with a residual current device (RCD) as required. Temporary power lines should be installed and removed according to regulations, ensuring good insulation. Lifting operations inside the ball mill cylinder, operating in damp or confined spaces, require a voltage ≤12V (safe voltage). This device uses a 12V battery to provide the safe voltage, ensuring personnel safety. The lifting weight is 300kg. The ball mill cylinder liner comes in three models: 130kg, 150kg, and 210kg. Before use, install the suspension rope 18. After straightening the suspension rope 18, the pins on both sides will be bolted. With the assistance of the device, the slide 16 is fixed at a higher position inside the cylinder. Then, the slide 16 can be placed on the suspension rope 18. The roller 17 on the inner side of the slide 16 contacts the suspension rope 18. With the assistance of the roller 17, the position of the slide 16 can be adjusted. Then, the hook 15 on the bottom side cooperates with the suspension platform 13 on the top of the traction platform 1 to complete the suspension operation of the device. When the motor 2 drives the winding wheel 3 inside the traction platform 1 to rotate, the winding operation of the traction rope 4 can be carried out. The bottom of the traction rope 4 is suspended by a clamping platform 8. After the bottom plate 9 of the clamping platform 8 is clamped on the outside of the liner, the locking bolt 12 on the outside of the bottom plate 9 is rotated. The front end of the locking bolt 12 abuts against the surface of the liner to complete the clamping and fixing operation of the liner. At this time, the motor 2 drives the winding wheel 3 to rotate and wind the traction rope 4 to lift the liner and assist in the installation operation of the liner.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A special hoisting device for replacing ball mill liners, comprising a traction platform (1), a motor (2), and a winding reel (3), characterized in that: A motor (2) is installed on the right side of the traction platform (1). The output end of the motor (2) extends to the inside of the traction platform (1). A winding wheel (3) is installed on the output end of the motor (2). A traction rope (4) is installed on the outer side wall of the winding wheel (3). A liner clamping assembly is provided at the bottom end of the traction rope (4). The clamping assembly includes a rope sleeve (5), a fixing hole (6), a fixing bolt (7), a clamping platform (8), a base plate (9), a locking platform (10), a locking hole (11), and a locking bolt (12). The rope sleeve (5) is provided on the outer side of the bottom end of the traction rope (4). The fixing hole (6) is provided on the right side surface of the rope sleeve (5). The fixing bolt (7) is provided inside the fixing hole (6). The left side of the fixing bolt (7) extends into the inside of the rope sleeve (5). The clamping platform (8) is fixed at the bottom end of the rope sleeve (5). The base plate (9) is fixed at the bottom end of the clamping platform (8). The locking platform (10) is fixed on the outer side wall of the base plate (9). The locking hole (11) is provided inside the locking platform (10). The locking bolt (12) is provided inside the locking hole (11).

2. The special hoisting device for replacing ball mill liners according to claim 1, characterized in that: The base plate (9) has two sets fixed at the bottom end of the clamping platform (8), and the two sets of base plates (9) are symmetrically distributed.

3. The special hoisting device for replacing ball mill liners according to claim 1, characterized in that: The locking hole (11) has an internal thread, and the locking bolt (12) has an external thread.

4. The special hoisting device for replacing ball mill liners according to claim 1, characterized in that: The top of the traction platform (1) is fixed with a suspension platform (13), the surface of the suspension platform (13) is provided with a suspension hole (14), the inside of the suspension hole (14) is provided with a hook (15), and the top of the hook (15) is fixed with a slide (16).

5. A special hoisting device for replacing ball mill liners according to claim 4, characterized in that: The slide (16) is equipped with a roller (17) inside, and a suspension rope (18) is provided at the bottom end of the roller (17).

6. A special hoisting device for replacing ball mill liners according to claim 1, characterized in that: A limiting platform (19) is installed at the bottom inside the traction platform (1), and a cleaning brush (20) is installed on the inner side wall of the limiting platform (19).

7. A special hoisting device for replacing ball mill liners according to claim 6, characterized in that: The limiting platform (19) is installed in two sets at the bottom of the traction platform (1), and the two sets of the limiting platform (19) are distributed in parallel.