A novel ball mill liner structure
By combining a limiting rod, a regular hexagonal block, and a screw, the problem of ore debris easily getting stuck in the mounting holes of traditional ball mill liners is solved, enabling holeless installation and convenient disassembly, thus improving the efficiency and ease of cleaning of the ball mill.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAMI DINGXIN COPPER CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-10
AI Technical Summary
The mounting holes of traditional ball mill liners are easily blocked by ore debris, making cleaning difficult and time-consuming.
The system employs a combination structure of a limit rod, a regular hexagonal block, and a screw. It achieves holeless installation by fitting the regular hexagonal block to the surface of the ball mill through threaded holes and the fit between the block and the mill. The connection stability is enhanced by the use of a sealing gasket and a check washer.
It effectively prevents ore debris from getting stuck in the liner mounting holes, simplifies the cleaning process, and improves installation efficiency and ease of use of the equipment.
Smart Images

Figure CN224475077U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ball mill technology, specifically to a novel ball mill liner structure. Background Technology
[0002] Ball mills are a common type of industrial crushing equipment, mainly used to grind solid materials into fine or ultrafine powders. They are widely used in industries such as mining, building materials, chemicals, metallurgy, and power, especially in mineral processing to grind ores to a particle size suitable for subsequent sorting. Ball mill liners are key components installed on the inner wall of the ball mill cylinder. They are mainly used to protect the cylinder from direct impact and friction from grinding media such as steel balls and materials. At the same time, by adjusting the shape of the liner, the movement state of the grinding media is optimized, thereby improving crushing efficiency and equipment life.
[0003] When using a ball mill, liners need to be installed. Traditional liners are usually fixed with bolts. When using bolts, mounting holes need to be pre-drilled in the liner. When grinding ore in a ball mill, ore fragments are very easy to get stuck in the mounting holes of the liner, which are difficult to clean by hand and require a lot of time to clean. Utility Model Content
[0004] To address the problems mentioned in the background section, the present invention aims to provide a novel ball mill liner structure that prevents ore debris from getting stuck in the liner. This solves the problem that traditional liners are mostly installed and fixed with bolts, which require pre-drilled holes in the liner. When grinding ore in a ball mill, ore debris easily gets stuck in the mounting holes of the liner, making it difficult to clean by hand and requiring a lot of time to clean.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel ball mill liner structure, comprising a liner, with two limiting rods fixedly connected to the bottom of the liner, each limiting rod having a through threaded hole inside, a regular hexagonal block at the bottom of the limiting rod, and a cylindrical hole structure at the top of the regular hexagonal block, the diameter of the cylindrical hole structure on the regular hexagonal block being larger than the diameter of the limiting rod, and a screw rod that mates with the threaded hole being fixedly connected to the bottom of the inner wall of the cylindrical hole structure on the regular hexagonal block.
[0006] As a preferred embodiment of this invention, a sealing gasket is fixedly connected to the bottom of the liner, and the sealing gasket is made of rubber.
[0007] As a preferred embodiment of this invention, a check washer is provided on the top of the regular hexagonal block.
[0008] As a preferred embodiment of this invention, a sealing ring is fitted onto the lower part of the screw surface, and the sealing ring is made of rubber.
[0009] As a preferred embodiment of this invention, the bottom of the regular hexagonal block is provided with a regular hexagonal hole.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] 1. This utility model first makes the liner plate tightly adhere to the inner surface of the ball mill, then rotates the regular hexagonal block, and uses the threaded hole to move the screw and the regular hexagonal block upward until the regular hexagonal block is in contact with the outer surface of the ball mill. At this time, the liner plate can be installed. Multiple liners are laid flat on the inner surface of the ball mill. At this time, the liner plate forms a surface without installation holes, thereby preventing ore fragments from getting stuck on the liner plate.
[0012] 2. By setting a sealing gasket, this utility model can make the liner plate fit more tightly with the ball mill, which is more convenient for users. Attached Figure Description
[0013] Figure 1 This is a perspective view of the liner structure of this utility model;
[0014] Figure 2 This is a front sectional view of the liner structure of this utility model;
[0015] Figure 3 This is a front sectional view of the regular hexagonal block structure of this utility model;
[0016] Figure 4 This is a three-dimensional view of the structure after the liner plate of this utility model is installed.
[0017] In the diagram: 1. Liner plate; 2. Limiting rod; 3. Threaded hole; 4. Regular hexagonal block; 5. Screw; 6. Sealing gasket; 7. Check washer; 8. Sealing ring; 9. Regular hexagonal hole. Detailed Implementation
[0018] 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.
[0019] like Figures 1 to 4As shown, the present invention provides a novel ball mill liner structure, including a liner 1. A limiting rod 2 is fixedly connected to the bottom of the liner 1. There are two limiting rods 2. A through threaded hole 3 is opened inside the limiting rod 2. A regular hexagonal block 4 is provided at the bottom of the limiting rod 2. A cylindrical hole structure is opened at the top of the regular hexagonal block 4. The diameter of the cylindrical hole structure on the regular hexagonal block 4 is larger than the diameter of the limiting rod 2. A screw 5, which mates with the threaded hole 3, is fixedly connected to the bottom of the inner wall of the cylindrical hole structure on the regular hexagonal block 4.
[0020] refer to Figure 1 A sealing gasket 6 is fixedly connected to the bottom of the liner 1. The sealing gasket 6 is made of rubber.
[0021] As a technical optimization of this utility model, by setting the sealing gasket 6, the liner 1 can be more tightly fitted to the ball mill, which is more convenient for users.
[0022] refer to Figure 3 A check washer 7 is provided on the top of the regular hexagonal block 4.
[0023] As a technical optimization of this utility model, by setting the anti-reverse washer 7, the friction between the regular hexagonal block 4 and the ball mill can be increased, preventing the regular hexagonal block 4 from loosening and falling off during use.
[0024] refer to Figure 3 A sealing ring 8 is fitted on the lower part of the surface of the screw 5. The sealing ring 8 is made of rubber.
[0025] As a technical optimization of this utility model, by setting a sealing ring 8, the sealing performance between the limiting rod 2 and the regular hexagonal block 4 can be increased, making the connection between the limiting rod 2 and the regular hexagonal block 4 more stable.
[0026] refer to Figure 1 The bottom of the regular hexagonal block 4 has a regular hexagonal hole 9.
[0027] As a technical optimization of this utility model, by setting a regular hexagonal hole 9, the regular hexagonal block 4 can be adapted to an internal hex wrench, which facilitates the disassembly and assembly of the liner plate 1.
[0028] The working principle and usage process of this utility model are as follows: In use, first place the liner 1 inside the ball mill, and use the pre-drilled mounting holes on the ball mill to allow the limiting rod 2 on the liner 1 to pass through the ball mill, so that the liner 1 is tightly attached to the inner surface of the ball mill. Then, align the screw 5 with the threaded hole 3, rotate the regular hexagonal block 4, and the regular hexagonal block 4 will drive the screw 5 to rotate. Use the threaded hole 3 to move the screw 5 and the regular hexagonal block 4 upward until the regular hexagonal block 4 is attached to the outer surface of the ball mill. At this time, the liner 1 can be installed. Lay multiple liners 1 flat on the inner surface of the ball mill. At this time, the liner 1 forms a surface without mounting holes, which prevents ore fragments from getting stuck on the liner 1.
[0029] In summary, the liner structure of this new ball mill, by setting up liner 1, limiting rod 2, threaded hole 3, regular hexagonal block 4, and screw 5, solves the problem that traditional liners are mostly installed and fixed with bolts. When using bolts, installation holes need to be reserved on the liner. When using the ball mill to grind ore, ore fragments are very easy to get stuck in the installation holes on the liner, which are difficult to clean by hand and require a lot of time to clean.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A novel ball mill liner structure, comprising a liner (1), characterized in that: The bottom of the liner (1) is fixedly connected to a limiting rod (2). There are two limiting rods (2). The limiting rod (2) has a through threaded hole (3) inside. The bottom of the limiting rod (2) is provided with a regular hexagonal block (4). The top of the regular hexagonal block (4) has a cylindrical hole structure. The diameter of the cylindrical hole structure on the regular hexagonal block (4) is larger than the diameter of the limiting rod (2). The bottom of the inner wall of the cylindrical hole structure on the regular hexagonal block (4) is fixedly connected to a screw (5) that cooperates with the threaded hole (3).
2. The liner structure of a novel ball mill according to claim 1, characterized in that: A sealing gasket (6) is fixedly connected to the bottom of the liner (1), and the sealing gasket (6) is made of rubber.
3. The liner structure of a novel ball mill according to claim 1, characterized in that: The top of the regular hexagonal block (4) is provided with a backstop washer (7).
4. The liner structure of a novel ball mill according to claim 1, characterized in that: A sealing ring (8) is fitted on the lower part of the surface of the screw (5), and the sealing ring (8) is made of rubber.
5. The liner structure of a novel ball mill according to claim 1, characterized in that: The bottom of the regular hexagonal block (4) is provided with a regular hexagonal hole (9).