Weldless detachable wear-resistant lining plate

The design incorporates dovetail tenons, countersunk bolts, and T-blocks, which solves the problem of difficult disassembly of wear-resistant liners, enabling convenient disassembly, reducing maintenance time, and making it suitable for equipment such as ball mills and crushers.

CN224332285UActive Publication Date: 2026-06-09YUNNAN KUNGANG WEAR RESISTANT MATERIAL SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN KUNGANG WEAR RESISTANT MATERIAL SCI
Filing Date
2025-05-06
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

When existing wear-resistant liners are connected to equipment, the bolt heads are prone to wear and the threads are prone to corrosion, making disassembly difficult and preventing timely disassembly when local damage occurs.

Method used

The design incorporates dovetail tenons, countersunk bolts, cover plates, and T-blocks. Through the combination of slots, connecting holes, and support springs, the liner body can be easily disassembled, preventing bolt head wear and corrosion.

Benefits of technology

It enables convenient disassembly of the liner, reduces maintenance time, and improves disassembly efficiency, making it particularly suitable for applications requiring frequent liner replacement, such as ball mills and crushers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of welding-free easy-to-disassemble wear-resistant lining, it is related to wear-resistant lining technical field, including lining body, the upper end of the lining body is provided with connecting block, the outside of the lining body is provided with clamping slot;Welding-free easy-to-disassemble wear-resistant lining, when lining body is disassembled, pliers pinch two groups of grooves, pull out along the inside of connecting hole, then sink bolt is rotated along connecting hole and mounting hole, sink bolt and cover plate solve exposed bolt head wear problem, finally through tool pulling connecting hole, so that connecting hole drives lining body to move upwards, so that dovetail tenon is separated from the inside of clamping slot, while the chamfer of one side's adaptive slot extrudes T-shaped block outside, T-shaped block is completely entered into the inside of storage slot, to disassemble lining body, simple structure, convenient operation, improve its disassembly efficiency, without damaging surrounding structure.
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Description

Technical Field

[0001] This utility model relates to the field of wear-resistant lining technology, and in particular to a wear-resistant lining that is easy to disassemble and install without welding. Background Technology

[0002] Wear-resistant liners refer to various wear-resistant liners made from wear-resistant steel plates through processes such as cutting, rolling deformation, drilling and welding. Examples include liners for mining crushers, conveyor liners, coal feeder bottom plates / cyclone separator inverted cones and liners, wear-resistant blades, etc. Their wear-resistant life can be more than 15 times longer than that of ordinary steel plates.

[0003] Although existing technologies involve connecting wear-resistant liners to equipment via bolts, the bolt heads are prone to wear and the threads are prone to corrosion, making disassembly difficult and preventing timely removal of the corresponding liner in case of localized damage. Therefore, this utility model proposes a wear-resistant liner that is easy to disassemble and install without welding. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wear-resistant liner that is easy to disassemble and reassemble without welding, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a wear-resistant liner plate that is easy to disassemble and assemble without welding, comprising a liner plate body, a connecting block provided at the upper end of the liner plate body, a slot provided on the outer side of the liner plate body, a dovetail tenon provided on the outer side of the liner plate body, a connecting component provided in the middle of the liner plate body, a connecting hole provided at the upper end of the liner plate body, a countersunk bolt and a cover plate provided inside the connecting hole, and a groove provided on the outer side of the cover plate;

[0006] The connecting component includes a storage slot, inside which is a T-shaped block. One side of the T-shaped block has a chamfer, and one side of the T-shaped block has a support spring. An adapter slot is provided on the outer side of the liner body.

[0007] As a further technical solution of this utility model, the number of the liner body is several groups and arranged in an array, the connecting block is fixedly connected to the liner body, and the number of the connecting block is twice the number of the liner body.

[0008] As a further technical solution of this utility model, the slot penetrates the middle of the liner body, the slot is adapted to the dovetail tenon, and the dovetail tenon is fixedly connected to the liner body.

[0009] As a further technical solution of this utility model, the number of connecting holes is twice the number of the liner body, the connecting holes penetrate through the middle of the liner body, and the side profile of the connecting holes is a "convex" structure.

[0010] As a further technical solution of this utility model, the number of countersunk bolts is equal to the number of connecting holes, the countersunk bolts are adapted to the connecting holes, the number of cover plates is equal to the number of countersunk bolts, the cover plates are adapted to the connecting holes, and a sealing ring is provided at the bottom of the cover plate.

[0011] As a further technical solution of this utility model, the depth of the groove is less than the thickness of the cover plate, the number of the grooves is two sets and they are symmetrically distributed, and the grooves are made of ceramic material.

[0012] As a further technical solution of this utility model, the storage groove and the T-shaped block are adapted to each other. The T-shaped block has a "T" shaped structure and the chamfer is an arc-shaped structure. The two ends of the support spring are respectively connected to the storage groove and the T-shaped block. The adapter groove has a rectangular structure and is adapted to the T-shaped block.

[0013] This invention provides a wear-resistant liner that is easy to assemble and disassemble without welding. Compared with the prior art, it has the following advantages:

[0014] This design presents a weld-free, easily disassembled wear-resistant liner. When disassembling the liner body, pliers are used to grip the two sets of grooves, and the cover plate is pulled out along the inside of the connecting hole. Next, the countersunk bolts are rotated out along the connecting hole and mounting hole. The countersunk bolts and cover plate solve the problem of wear on exposed bolt heads. Finally, the connecting hole is pulled with a tool, causing the liner body to move upwards, disengaging the dovetail tenon from the slot. Simultaneously, the adapter groove on one side presses against the chamfer on the outside of the T-block, while the T-block on the other side presses against the adjacent adapter groove through the chamfer, causing the T-block to move along the inside of the receiving slot. At the same time, the support spring compresses, allowing the T-block to fully enter the receiving slot, thus disassembling the liner body. The structure is simple, operation is convenient, and disassembly efficiency is improved without damaging surrounding structures. This structure is particularly suitable for ball mill liners, crusher impact plates, and other applications requiring frequent replacement, and is expected to reduce maintenance time by more than 60%. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a wear-resistant liner that is easy to assemble and disassemble without welding;

[0016] Figure 2 A split view of a weld-free, easy-to-disassemble wear-resistant liner;

[0017] Figure 3 A partial structural diagram of a wear-resistant liner that is easy to assemble and disassemble without welding;

[0018] Figure 4 This is a partial side sectional view of a wear-resistant liner that is easy to assemble and disassemble without welding.

[0019] In the diagram: 1. Liner body; 2. Connecting block; 3. Slot; 4. Dovetail tenon; 5. Connecting component; 51. Storage slot; 52. T-block; 53. Chamfer; 54. Support spring; 55. Adaptor slot; 6. Connecting hole; 7. Countersunk bolt; 8. Cover plate; 9. Groove. Detailed Implementation

[0020] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a welding-free and easy-to-disassemble wear-resistant liner technical solution: a welding-free and easy-to-disassemble wear-resistant liner includes a liner body 1, a connecting block 2 is provided at the upper end of the liner body 1, a slot 3 is provided on the outer side of the liner body 1, a dovetail tenon 4 is provided on the outer side of the liner body 1, a connecting component 5 is provided in the middle of the liner body 1, a connecting hole 6 is provided at the upper end of the liner body 1, a countersunk bolt 7 and a cover plate 8 are provided inside the connecting hole 6, and a groove 9 is provided on the outer side of the cover plate 8;

[0022] The connecting component 5 includes a storage slot 51, a T-shaped block 52 is provided inside the storage slot 51, a chamfer 53 is provided on one side of the T-shaped block 52, a support spring 54 is provided on one side of the T-shaped block 52, and an adapter slot 55 is provided on the outer side of the liner body 1.

[0023] like Figure 1-3 As shown, the number of liner body 1 is several groups and they are arranged in an array. The connecting block 2 is fixedly connected to the liner body 1. The number of connecting blocks 2 is twice the number of liner body 1. The slot 3 penetrates the middle of the liner body 1. The slot 3 is adapted to the dovetail tenon 4. The dovetail tenon 4 is fixedly connected to the liner body 1, which is conducive to the longitudinal connection between the two groups of liner body 1.

[0024] like Figure 1-3As shown, the number of connecting holes 6 is twice the number of the liner body 1. The connecting holes 6 penetrate through the middle of the liner body 1. The side profile of the connecting holes 6 is a "convex" structure. The number of countersunk bolts 7 is equal to the number of connecting holes 6. The countersunk bolts 7 are compatible with the connecting holes 6. The number of cover plates 8 is equal to the number of countersunk bolts 7. The cover plates 8 are compatible with the connecting holes 6. A sealing ring is provided at the bottom of the cover plate 8. The depth of the groove 9 is less than the thickness of the cover plate 8. There are two sets of grooves 9, which are symmetrically distributed. The grooves 9 are made of ceramic material, which facilitates the overall installation of the liner body 1 and avoids external wear of the countersunk bolts 7.

[0025] like Figure 2-4 As shown, the storage slot 51 and the T-shaped block 52 are adapted to each other. The T-shaped block 52 has a "T" shaped structure and the chamfer 53 has an arc-shaped structure. The two ends of the support spring 54 are connected to the storage slot 51 and the T-shaped block 52 respectively. The adapter slot 55 has a rectangular structure and is adapted to the T-shaped block 52, which facilitates the lateral connection of the two sets of liner body 1.

[0026] The working principle of this utility model is as follows: During the installation of the liner body 1, the liner body 1 is brought into contact with the inside of the ball mill or crusher, the countersunk bolt 7 is inserted along the inside of the connecting hole 6 and connected to the mounting hole on the inner wall of the equipment, then the cover plate 8 is inserted into the inside of the connecting hole 6, and the countersunk bolt 7 is sealed by the sealing ring to prevent water from entering the countersunk bolt 7 and causing rust, and then another set of liner body 1 is installed.

[0027] It should be noted that, through the arrangement of the slot 3, dovetail tenon 4, connecting component 5, countersunk bolt 7, and cover plate 8, when disassembling the liner body 1, the pliers are used to pinch the two sets of grooves 9, and the cover plate 8 is pulled out along the inside of the connecting hole 6. Then, the countersunk bolt 7 is rotated out along the connecting hole 6 and the mounting hole. Finally, the connecting hole 6 is pulled with a tool, causing the connecting hole 6 to move the liner body 1 upward, so that the dovetail tenon 4 disengages from the inside of the slot 3. At the same time, the adapter groove 55 on one side presses against the chamfer 53 on the outside of the T-block 52, and the T-block 52 on the other side... The T-shaped block 52 is pressed against the adjacent fitting groove 55 by the chamfer 53, so that the T-shaped block 52 moves along the inside of the receiving groove 51. At the same time, the support spring 54 is compressed, so that the T-shaped block 52 is completely inserted into the inside of the receiving groove 51, thereby disassembling the liner body 1. The structure is simple and easy to operate, improving its disassembly efficiency without damaging the surrounding structure. The countersunk bolt 7 and cover plate 8 solve the problem of wear on exposed bolt heads. This structure is particularly suitable for ball mill liners, crusher impact plates and other working conditions that require frequent replacement, and is expected to reduce maintenance time by more than 60%.

[0028] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A wear-resistant liner that is easy to assemble and disassemble without welding, comprising a liner body (1), characterized in that, The upper end of the liner body (1) is provided with a connecting block (2), the outer side of the liner body (1) is provided with a slot (3), the outer side of the liner body (1) is provided with a dovetail tenon (4), the middle part of the liner body (1) is provided with a connecting component (5), the upper end of the liner body (1) is provided with a connecting hole (6), the inside of the connecting hole (6) is provided with a countersunk bolt (7) and a cover plate (8), and the outer side of the cover plate (8) is provided with a groove (9). The connecting component (5) includes a storage groove (51), a T-shaped block (52) is provided inside the storage groove (51), a chamfer (53) is provided on one side of the T-shaped block (52), a support spring (54) is provided on one side of the T-shaped block (52), and an adapter groove (55) is provided on the outer side of the liner body (1).

2. The wear-resistant liner plate that is easy to disassemble and reassemble without welding according to claim 1, characterized in that, The number of the liner body (1) is several groups and they are arranged in an array. The connecting block (2) is fixedly connected to the liner body (1). The number of the connecting block (2) is twice the number of the liner body (1).

3. The wear-resistant liner plate that is easy to disassemble and reassemble without welding according to claim 1, characterized in that, The slot (3) penetrates the middle of the liner body (1), and the slot (3) is adapted to the dovetail tenon (4). The dovetail tenon (4) is fixedly connected to the liner body (1).

4. The wear-resistant liner plate that is easy to disassemble and reassemble without welding according to claim 1, characterized in that, The number of connecting holes (6) is twice the number of the liner body (1). The connecting holes (6) penetrate the middle of the liner body (1), and the side profile of the connecting holes (6) is a "convex" structure.

5. The wear-resistant liner plate that is easy to disassemble and reassemble without welding according to claim 1, characterized in that, The number of countersunk bolts (7) is equal to the number of connecting holes (6), and the countersunk bolts (7) are adapted to the connecting holes (6). The number of cover plates (8) is equal to the number of countersunk bolts (7), and the cover plates (8) are adapted to the connecting holes (6). A sealing ring is provided at the bottom of the cover plate (8).

6. The wear-resistant liner plate that is easy to disassemble and reassemble without welding according to claim 1, characterized in that, The depth of the groove (9) is less than the thickness of the cover plate (8). There are two sets of grooves (9) and they are symmetrically distributed. The grooves (9) are made of ceramic material.

7. The wear-resistant liner plate that is easy to disassemble and reassemble without welding according to claim 1, characterized in that, The storage slot (51) is adapted to the T-shaped block (52). The T-shaped block (52) has a "T" shaped structure. The chamfer (53) has an arc-shaped structure. The two ends of the support spring (54) are connected to the storage slot (51) and the T-shaped block (52) respectively. The adapter slot (55) has a rectangular structure and is adapted to the T-shaped block (52).