Segmented ball mill large gear ring
By using a segmented design and connecting components for the ball mill's large gear ring, the problems of difficult overall casting and inconvenient transportation were solved, achieving low-cost production and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional large gear rings are cast as a single piece, which is difficult to cast and inconvenient to transport, resulting in high production and maintenance costs.
The ball mill's large gear ring adopts a segmented design, with multiple gear ring segments assembled into a whole through connecting components. It is manufactured using existing machining equipment, and a stable connection is ensured through positioning and limiting structures.
It reduces mold costs and production difficulty, improves transportation convenience, and only requires replacement of the gear ring section when partial damage occurs, thus reducing maintenance costs.
Smart Images

Figure CN224079547U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a segmented ball mill large gear ring, belonging to the field of large gear ring technology. Background Technology
[0002] The rotation of the ball mill is driven by a motor through a reducer, which drives a small gear to rotate. The small gear meshes with a large gear ring installed on the cylinder, transmitting power to the large gear ring, causing it to rotate at a uniform speed, which in turn drives the cylinder to rotate, thus achieving the grinding of materials.
[0003] Traditional large gear rings are usually cast as a whole, which is difficult to cast. Due to their large size, it is inconvenient to transport them. Therefore, we propose a segmented ball mill large gear ring. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a segmented ball mill large gear ring, which solves the problem that the existing large gear ring is usually cast as a whole, which is difficult to cast. Due to the large size of the gear ring, it is inconvenient to transport the gear ring. Therefore, we propose a segmented ball mill large gear ring.
[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:
[0006] A segmented ball mill gear ring includes multiple gear ring segments that can be assembled with each other. A connecting component is provided between two adjacent gear ring segments to connect the two gear ring segments. The connecting component includes a positioning seat installed inside one of the gear ring segments. A positioning block is inserted into the positioning seat. The positioning block and the positioning seat are fixedly connected by positioning bolts. The positioning block is fixedly connected inside the other gear ring segment.
[0007] By adopting the above technical solution, the large gear ring is divided into multiple gear ring segments, which are connected by connecting components to form the large gear ring. Since each gear ring segment has the same specifications and dimensions, only one segment model is needed when producing the gear ring segments, reducing mold costs. The gear ring segments are smaller in size than the large gear ring and can be manufactured using existing machining equipment in the workshop without the need for special proprietary equipment, reducing production difficulty. Furthermore, the produced gear ring segments can be transported separately, reducing space occupation and making transportation more convenient. When a part of the gear ring is damaged, the staff only needs to replace the damaged gear ring segment, without replacing the entire gear ring, greatly reducing maintenance costs.
[0008] The present invention is further configured such that: a positioning groove is provided inside the positioning seat, and the positioning block is inserted into the positioning groove.
[0009] By adopting the above technical solution, when assembling gear ring segments, the positioning block inside one gear ring segment can be inserted into the positioning groove of the positioning seat inside another gear ring segment. Through the cooperation between the positioning block and the positioning seat, it is easier to install the two adjacent gear ring segments and the positioning is more accurate.
[0010] The present invention is further configured such that: a limiting post is fixedly connected to the inner bottom wall of the positioning groove, and a limiting hole is opened inside the positioning block, with the limiting post inserted into the limiting hole.
[0011] The present invention is further configured such that: a sealing cover is hinged to the outer surface of the positioning seat, and a through hole is provided on the sealing cover; the end of the limiting post away from the positioning seat passes through the limiting hole and the through hole and extends to the outside of the sealing cover.
[0012] By adopting the above technical solution, the limiting post can limit and guide the positioning block during installation, making the positioning block more accurately installed. After the positioning block is installed inside the positioning seat, the staff can flip the sealing cover to seal and shield the positioning block, preventing foreign objects from entering the positioning groove.
[0013] The present invention is further configured such that: a locking nut is threadedly connected to the outer surface of the limiting post, the outer surface of the limiting post is provided with external threads, and the inner wall of the locking nut is provided with internal threads.
[0014] By adopting the above technical solution, the locking nut can be threaded onto the end of the limiting post to press the sealing cover and the positioning block together, thereby improving the stability of the connection between the positioning block and the positioning seat.
[0015] The present invention is further configured such that: the end of the positioning bolt passing through the positioning seat and the positioning block is threadedly connected to a positioning nut.
[0016] By adopting the above technical solution, the positioning nut can limit the positioning bolt, effectively preventing the positioning bolt from detaching from the positioning seat and the positioning block, and ensuring the stability of the connection between the positioning block and the positioning seat.
[0017] The present invention is further configured such that: the gear ring segment includes an outer gear ring, the inner wall of the outer gear ring is fixedly connected with a reinforcing rib, and the inner wall of the reinforcing rib is fixedly connected with an inner ring.
[0018] By adopting the above technical solution, multiple gear ring segments can be combined into a large gear ring, and the combined large gear ring facilitates the rotation of the ball mill cylinder.
[0019] The beneficial effects of this utility model are as follows: The large gear ring is divided into multiple gear ring segments, which are connected by a connecting component to form the large gear ring. Since each gear ring segment has the same specifications and dimensions, only one segment mold is needed when producing the gear ring segments, reducing mold costs. The gear ring segments are smaller in size than the large gear ring and can be manufactured using existing machining equipment in the workshop without the need for special proprietary equipment, reducing production difficulty. Furthermore, the produced gear ring segments can be transported separately, reducing space occupation and making transportation more convenient. When a part of the gear ring is damaged, the staff only needs to replace the damaged gear ring segment, without replacing the entire gear ring, greatly reducing maintenance costs. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the isometric structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the rear-view axonometric structure of this utility model;
[0022] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0023] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B;
[0024] Figure 5 This is a partially enlarged structural schematic diagram of the present invention;
[0025] Figure 6 This is an isometric structural diagram of the sealing cap of this utility model.
[0026] In the diagram: 1. Gear ring segment; 101. Outer gear ring; 102. Reinforcing rib; 103. Inner ring; 2. Positioning seat; 3. Positioning block; 4. Positioning bolt; 5. Positioning groove; 6. Limiting post; 7. Limiting hole; 8. Sealing cover; 9. Through hole; 10. Locking nut; 11. Positioning nut. Detailed Implementation
[0027] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0028] Example 1
[0029] like Figures 1 to 4As shown, a segmented ball mill large gear ring includes multiple gear ring segments 1 that can be assembled with each other. Each gear ring segment 1 includes an outer gear ring 101, with reinforcing ribs 102 fixedly connected to the inner wall of the outer gear ring 101. An inner ring 103 is fixedly connected to the inner wall of the reinforcing ribs 102. Multiple gear ring segments 1 can be combined to form a large gear ring. The combined large gear ring facilitates the rotation of the ball mill cylinder. Mounting holes are provided on the reinforcing ribs 102. After the gear ring segments 1 are assembled, they are connected to the ball mill cylinder through the mounting holes, completing the assembly of the large gear ring and the ball mill cylinder. This makes the connection between the large gear ring and the ball mill cylinder more secure. A spacer is provided between adjacent gear ring segments 1. A connecting assembly for connecting two gear ring segments 1 includes a positioning seat 2 installed inside one of the gear ring segments 1. A positioning block 3 is inserted inside the positioning seat 2. Each gear ring segment 1 has a positioning seat 2 and a positioning block 3. The positioning block 3 and the positioning seat 2 are fixedly connected by a positioning bolt 4. The positioning bolt 4 passes through the end of the positioning seat 2 and the positioning block 3 and is threaded with a positioning nut 11. The positioning nut 11 can limit the positioning bolt 4, effectively preventing the positioning bolt 4 from disengaging from the positioning seat 2 and the positioning block 3, and ensuring the stability of the connection between the positioning block 3 and the positioning seat 2. The positioning block 3 is fixedly connected inside the other gear ring segment 1.
[0030] like Figures 5 to 6 As shown, the positioning seat 2 has a positioning groove 5 inside, the positioning block 3 is inserted into the positioning groove 5, the bottom wall of the positioning groove 5 is fixedly connected to a limiting post 6, the positioning block 3 has a limiting hole 7 inside, the limiting post 6 is inserted into the limiting hole 7, the outer surface of the positioning seat 2 is hinged with a sealing cover 8, the positioning seat 2 is fixedly connected to a positioning tube, the positioning tube is installed with a positioning post inside, both ends of the positioning post are fixedly connected to the sealing cover 8, so that when the sealing cover 8 is flipped, it can move circumferentially around the center line of the positioning tube. The sealing cover 8 has a through hole 9, the end of the limiting post 6 away from the positioning seat 2 passes through the limiting hole 7 and the through hole 9 and extends to the outside of the sealing cover 8.
[0031] like Figure 4 As shown, a locking nut 10 is threadedly connected to the outer surface of the limiting post 6. The outer surface of the limiting post 6 is provided with external threads, and the inner wall of the locking nut 10 is provided with internal threads.
[0032] The large gear ring is divided into multiple gear ring segments 1, which are connected by connecting components to form the large gear ring. Since each gear ring segment 1 has the same specifications and dimensions, only one segment model is needed when producing the gear ring segment 1, reducing mold costs. Compared with the large gear ring, the gear ring segment 1 is smaller in size and can be manufactured using existing machining equipment in the workshop without the need for special proprietary equipment, reducing production difficulty. Furthermore, the produced gear ring segments 1 can be transported separately, reducing space occupation and making transportation more convenient. When a part of the gear ring is damaged, the staff only needs to replace the damaged gear ring segment 1, without replacing the entire gear ring, greatly reducing maintenance costs.
[0033] When assembling gear ring segment 1, the positioning block 3 inside one gear ring segment 1 can be inserted into the positioning groove 5 of the positioning seat 2 inside another gear ring segment 1. Through the cooperation between the positioning block 3 and the positioning seat 2, it is easier to install the two adjacent gear ring segments 1 and the positioning is more accurate.
[0034] During installation, the limiting post 6 can limit and guide the positioning block 3, making the positioning block 3 more accurately installed. After the positioning block 3 is installed inside the positioning seat 2, the operator can flip the sealing cover 8 to seal and shield the positioning block 3, preventing foreign objects from entering the positioning groove 5.
[0035] The locking nut 10 can be threaded onto the end of the limiting post 6 to press the sealing cover 8 and the positioning block 3 together, thereby improving the stability of the connection between the positioning block 3 and the positioning seat 2.
[0036] When it is necessary to connect the gear ring segments 1, the positioning block 3 inside one gear ring segment 1 can be inserted into the positioning groove 5 of the positioning seat 2 inside the other gear ring segment 1. The positioning bolt 4 is installed in the positioning seat 2 and the positioning nut 11 is used to lock the positioning bolt 4. Then the sealing cover 8 is flipped over and placed on the positioning block 3. The limiting post 6 is then inserted into the through hole 9 on the sealing cover 8. The operator can tighten the locking nut 10 to press the sealing cover 8 and the positioning block 3 together, making the connection between the positioning block 3 and the positioning seat 2 more stable.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A segmented bull gear for a ball mill, comprising a plurality of gear segments (1) which can be assembled to one another, characterized in that: Two adjacent tooth ring segments (1) are provided with a connecting assembly for connecting the two tooth ring segments (1), the connecting assembly comprises a positioning seat (2) mounted in one of the tooth ring segments (1), a positioning block (3) is inserted in the positioning seat (2), the positioning block (3) is fixedly connected with the positioning seat (2) through positioning bolts (4), and the positioning block (3) is fixedly connected in the other tooth ring segment (1).
2. A segmented bull gear for a ball mill according to claim 1, characterized in that: The positioning seat (2) is internally provided with a positioning groove (5), and the positioning block (3) is inserted in the positioning groove (5).
3. A segmented bull gear for a ball mill according to claim 2, characterized in that: The inner bottom wall of the positioning groove (5) is fixedly connected with a limiting column (6), the positioning block (3) is internally provided with a limiting hole (7), and the limiting column (6) is inserted in the limiting hole (7).
4. A segmented bull gear for a ball mill according to claim 3, characterized in that: The outer surface of the positioning seat (2) is hingedly connected with a sealing cover (8), the sealing cover (8) is provided with a through hole (9), and the end of the limiting column (6) away from the positioning seat (2) penetrates through the limiting hole (7) and the through hole (9) and extends to the outside of the sealing cover (8).
5. A segmented bull gear for a ball mill according to claim 3, characterized in that: The outer surface of the limiting column (6) is threadedly connected with a locking nut (10), the outer surface of the limiting column (6) is provided with external threads, and the inner wall of the locking nut (10) is provided with internal threads.
6. A segmented bull gear for a ball mill according to claim 1, characterized in that: The end of the positioning bolt (4) penetrating through the positioning seat (2) and the positioning block (3) is threadedly connected with a positioning nut (11).
7. A segmented bull gear for a ball mill according to claim 1, characterized in that: The tooth ring segment (1) comprises an outer tooth ring (101), the inner wall of the outer tooth ring (101) is fixedly connected with a reinforcing rib (102), and the inner wall of the reinforcing rib (102) is fixedly connected with an inner ring (103).