Roller structure of ball mill

Abstract

The utility model provides a roller structure of a ball mill, which comprises a roller body, one end of the roller body is provided with a feed inlet, the feed inlet is outwards communicated with a rotary support cylinder, the rotary support cylinder is outwards communicated with a feeding hopper, and the inner wall of the roller body is detachably connected with a plurality of lining plates which are circumferentially distributed side by side. A plurality of connecting holes in one-to-one correspondence with the lining plates are formed in the outer side of the roller body, a threaded shaft is outwards arranged on the outer side of each lining plate, each threaded shaft extends out of the corresponding connecting hole to be connected with a connecting nut, and an elastic rubber layer is arranged on the inner side of each lining plate; a plurality of wear-resistant steel plates distributed in an array mode are arranged on the side, away from the lining plate, of each elastic rubber layer, an opening is formed in the end, away from the feeding port, of the roller body, and the sealing cover is rotationally connected with the opening end of the roller body. The rubber and the steel plate are combined for use, so that the wear resistance of the lining plate can be effectively improved, the service life can be prolonged, and the noise can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball mills and relates to a drum structure of a ball mill. Background Art

[0002] Ball mills, widely used in the mining, chemical, and building materials industries, play a vital role in mineral processing. The centrifugal force and friction generated by the rotating cylinder of a ball mill cause the grinding media (usually steel balls) within the cylinder to crush and grind the material to the desired particle size. This equipment is not only suitable for grinding various metal and non-metallic ores, but is also widely used for grinding cement clinker, ceramics, glass, and other materials.

[0003] However, in actual ball mill operation, the liner, a key component, has a significant impact on the equipment's efficiency and operating costs. Traditionally, ball mill liners are mostly cast from manganese steel or alloy steel. While these materials offer a certain degree of wear resistance, the impact of ore over time causes the liner to wear severely, significantly shortening its service life. Furthermore, due to the inherent properties of metal materials, the liner generates considerable noise during operation, adversely affecting the working environment.

[0004] In recent years, to improve wear resistance and reduce noise, more and more manufacturers have begun replacing traditional metal liners with rubber liners. Rubber liners offer excellent elasticity and shock absorption, effectively reducing noise and alleviating wear. However, the irregular shape of the ore, along with its sharp corners and cutting edges, can cause continuous cutting damage to the rubber liners, making them susceptible to cracks and breakage during use. This reduces the rubber liners' overall cut resistance and, in turn, limits their service life. Utility Model Content

[0005] The purpose of the utility model is to provide a drum structure of a ball mill, which combines rubber with steel plates, thereby effectively improving the wear resistance of the liner and increasing its service life, and effectively reducing noise.

[0006] The cam is provided with a toothed cover, and the toothed cover is provided with a toothed cover, and the toothed cover is provided with a toothed cover, and the toothed cover is provided with a toothed cover.

[0007] By adopting the above technical solution, when the ball mill is working, the driving motor drives the drum body to rotate, driving the internal material and steel balls to move to a high place under the action of centrifugal force, and then fall down under the action of gravity and hit each other and grind, and this reciprocating process gradually grinds the material into powder. When the steel ball or principle falls from a high place and hits the wear-resistant steel plate, most of the energy can be buffered due to the effect of the elastic rubber layer.

[0008] The utility model is further configured such that a gear transmission ring is provided on the outer periphery of one end of the roller body.

[0009] The utility model is further configured such that a side of each elastic rubber layer away from the corresponding inner lining plate is a plane, so that the interior of the drum body is in the shape of a regular polygon.

[0010] The utility model is further configured such that each wear-resistant steel plate is made of high manganese steel.

[0011] The present invention is further configured such that a mesh cover is provided on one side of the discharge port on the inner side of the sealing cover.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] First, an elastic rubber layer is set on the outside of the wear-resistant steel plate. When a steel ball or object falls from a high place and hits the wear-resistant steel plate, the elastic rubber layer can buffer most of the energy, preventing the wear-resistant steel plate from being broken and worn during the impact. In addition, after the elastic rubber layer buffers the vibration, it can also achieve a good sound insulation effect.

[0014] Secondly, compared with rubber, the surface hardness of wear-resistant steel plate is higher. When the surface of wear-resistant steel plate contacts with the material, it is not easily cut and damaged by sharp materials, and has better cutting resistance.

[0015] Thirdly, the present invention discharges materials from one end of the drum body and can also perform steel ball filtering. Compared with the opening at the side of the drum body, the discharge is more convenient and more concentrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 Used to display mesh covers and sealing covers;

[0018] Figure 3 Used to show the internal structure of the drum body;

[0019] Figure 4 Used to demonstrate the connection between the lining plate, elastic rubber layer and wear-resistant steel plate.

[0020] Among them, 1. Drum body; 2. Rotating support cylinder; 3. Feeding hopper; 4. Gear transmission ring; 5. Sealing cover; 6. Discharge port; 7. Mesh screen cover; 8. Sealing cover; 9. Lining plate; 10. Connecting hole; 11. Threaded shaft; 12. Connecting nut; 13. Elastic rubber layer; 14. Wear-resistant steel plate. DETAILED DESCRIPTION

[0021] The following is a detailed description of the drum structure of a ball mill proposed in this utility model, combined with the accompanying drawings and specific embodiments. The advantages and features of this utility model will become more apparent from the following description. It should be noted that the drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clarify the description of the embodiments of this utility model. Identical or similar reference numerals in the drawings represent identical or similar components.

[0022] Example, see Figure 1-4 A ball mill drum structure includes a drum body 1, one end of the drum body 1 is provided with a feed port (not shown), the feed port is connected to a rotating support cylinder 2, which serves as a rotation support, and the rotating support cylinder 2 is connected to a hopper 3. A gear transmission ring 4 is provided on the outer periphery of one end of the drum body 1 to facilitate driving the drum body 1 to rotate by a drive motor. The drum body 1 is open at one end away from the feed port, and also includes a sealing cover 5 rotatably connected to the open end of the drum body 1. The lower part of the sealing cover 5 is provided with a discharge port 6 connected to the lower part of the open end of the drum body 1. One side of the discharge port 6 is rotatably connected to a mesh cover 7 and a sealing cover 8, wherein the mesh cover 7 is located on the inner side and the sealing cover 8 is located on the outer side. When discharging is required, only the sealing cover 8 needs to be opened to filter out the steel balls through the mesh cover 7. When the steel balls need to be replaced, the mesh cover 7 and the sealing cover 8 are opened at the same time.

[0023] The inner wall of the drum body 1 is detachably connected to a plurality of inner lining plates 9 arranged side by side in a circular pattern. The outer side of the drum body 1 is provided with a plurality of connection holes 10 corresponding to the inner lining plates 9. A threaded shaft 11 is provided outwardly on the outer side of each inner lining plate 9. Each threaded shaft 11 extends outward from the corresponding connection hole 10 and is connected to a connection nut 12. An elastic rubber layer 13 is provided on the inner side of each inner lining plate 9. A plurality of wear-resistant steel plates 14 are arranged in an array on the side of each elastic rubber layer 13 away from the inner lining plate 9. Each wear-resistant steel plate 14 is made of high manganese steel. The side of each elastic rubber layer 13 away from the corresponding inner lining plate 9 is flat, making the interior of the drum body 1 a regular polygon, which is more conducive to driving the steel balls to a higher position during rotation.

[0024] Working principle: When the ball mill is working, the driving motor drives the drum body 1 to rotate, driving the internal material and steel balls to move to a high place under the action of centrifugal force, and then fall down under the action of gravity and hit each other to grind, and the material is gradually ground into powder in this reciprocating manner. When the steel ball or principle falls from a high place and hits the wear-resistant steel plate 14, the elastic rubber layer 13 can buffer most of the energy, avoiding the wear-resistant steel plate 14 from breaking and wearing during the impact, and after the elastic rubber layer 13 buffers the vibration, it can also achieve a better sound insulation effect. At the same time, compared with rubber, the wear-resistant steel plate 14 is in contact with the material on the surface and has better cutting resistance.

[0025] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0026] The above description is only a description of the preferred embodiment of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A drum structure of a ball mill, comprising a drum body (1), wherein one end of the drum body (1) is provided with a feed port, the feed port is connected to a rotating support cylinder (2) outwardly, and the rotating support cylinder (2) is connected to a feeding hopper (3) outwardly, characterized in that: The inner wall of the drum body (1) is detachably connected to a plurality of inner lining plates (9) distributed side by side in a circle, and the outer side of the drum body (1) is provided with a plurality of connection holes (10) corresponding to the inner lining plates (9), and a threaded shaft (11) is provided outwardly on the outer side of each inner lining plate (9), and each threaded shaft (11) extends outward from the corresponding connection hole (10) and is connected to a connection nut (12), and an elastic rubber layer (13) is provided on the inner side of each inner lining plate (9), and a plurality of wear-resistant steel plates (14) distributed in an array are provided on the side of each elastic rubber layer (13) away from the inner lining plate (9), and the drum body (1) is open at one end away from the feed port, and also includes a sealing cover (5) rotatably connected to the open end of the drum body (1), and the lower part of the sealing cover (5) is provided with a discharge port (6) connected to the lower part of the open end of the drum body (1), and a sealing cover (8) is hinged on one side of the discharge port (6).

2. The drum structure of a ball mill according to claim 1, characterized in that: A gear transmission ring (4) is provided on the outer periphery of one end of the roller body (1).

3. The drum structure of a ball mill according to claim 1, characterized in that: The side of each elastic rubber layer (13) away from the corresponding inner lining plate (9) is a plane, so that the interior of the drum body (1) is in the shape of a regular polygon.

4. The drum structure of a ball mill according to claim 1, characterized in that: Each wear-resistant steel plate (14) is made of high manganese steel.

5. The drum structure of a ball mill according to claim 1, characterized in that: A mesh cover (7) is provided on one side of the discharge port (6) on the inner side of the sealing cover (8).

Images