Steel lining plate structure for large mining mill

Abstract

The utility model relates to the technical field of mechanical engineering, in particular to a steel lining plate structure for a large mining mill, which comprises a shell steel plate, the inner wall of the shell steel plate is fixedly connected with a buffer device, and the outer surface of the buffer device is clamped with a connecting device; the buffering device comprises a buffering steel plate shell, limiting blocks are arranged in the multiple buffering springs, and the buffering steel plate shell is fixedly connected to the inner wall of the outer shell steel plate. According to the steel lining plate structure for the large-scale mining mill, through the buffering device and the connecting device, impact force generated by materials to the steel lining plate when the mill runs can be effectively absorbed and dispersed, impact damage to the steel lining plate and other parts of the mill is greatly reduced, the overall service life of equipment is prolonged, and the service life of the equipment is prolonged. The steel lining plate is easy and convenient to mount and dismount, time and labor cost are saved, and maintenance and overhaul of equipment are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, and particularly relates to a steel liner structure for a large-scale mining mill. Background Art

[0002] Autogenous mills and semi-autogenous mills are important grinding equipment in the processing of metallic minerals, industrial minerals, chemical minerals, energy minerals and building materials. The function of the liner is to protect the cylinder body of the autogenous mill and semi-autogenous mill, and transfer energy to the material and grinding medium. The liner material has an important impact on extending the life of the liner and improving work efficiency.

[0003] During the long-term operation of the mill, due to the limitations of material and structural design, the existing steel liners are prone to rapid wear under the friction and impact of materials. There are deficiencies in the installation and fixing methods of the existing steel liners, resulting in cumbersome and time-consuming installation and disassembly processes. This not only increases the labor intensity of workers, but also may damage the liner or the mill body due to improper operation. Therefore, we introduce a new steel liner structure for large-scale mining mills. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a steel liner structure for a large-scale mining mill, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A steel liner structure for a large-scale mining mill includes an outer shell steel plate. A buffer device is fixedly connected to the inner wall of the outer shell steel plate, and a connecting device is clamped on the outer surface of the buffer device.

[0007] The buffer device includes a buffer steel plate shell. A number of first grooves are formed in the inner wall of the buffer steel plate shell. A number of buffer springs are fixedly connected to the inner groove walls of the first grooves. A limiting block is arranged in each of the buffer springs. The buffer steel plate shell is fixedly connected to the inner wall of the outer shell steel plate.

[0008] Preferably, the connecting device includes a mill shell steel plate and a screw. There are two mill shell steel plates. A number of second grooves are formed on the outer surfaces of the two mill shell steel plates. A number of wear-resistant rods are fixedly connected to the inner walls of the two mill shell steel plates. There are four screws. Fixing bolts are threadedly connected to the upper and lower ends of the two mill shell steel plates through the screws. The two mill shell steel plates are clamped in the buffer steel plate shell.

[0009] By adopting the above technical solutions: This design ensures a firm connection between the grinding shell steel plate and the buffer steel plate shell, while providing a convenient disassembly and assembly method. Through the fastening effect of the screw and the fixing bolt, it can be ensured that the grinding shell steel plate will not loosen or fall off when subjected to impact, improving the stability and reliability of the entire steel liner structure.

[0010] Preferably, a plurality of the buffer springs are arranged in a circular array centered on the buffer steel plate shell.

[0011] By adopting the above technical solutions: This layout enables the buffer springs to be evenly distributed on the inner wall of the buffer steel plate shell, so as to provide a more uniform buffering effect when subjected to impact. The design of the circular array also helps to disperse the impact force, reduce local stress concentration, and extend the service life of the buffer springs and the entire steel liner.

[0012] Preferably, the other sides of a plurality of the buffer springs are respectively movably connected to a plurality of second grooves.

[0013] By adopting the above technical solutions: This movable connection method allows the buffer springs to have a certain telescopic space when subjected to impact, so as to more effectively absorb and disperse the impact force.

[0014] Preferably, the two grinding shell steel plate structures are the same and symmetrically distributed up and down.

[0015] By adopting the above technical solutions: This design enables the entire steel liner structure to have good balance and stability in the vertical direction.

[0016] Preferably, a plurality of the wear-resistant rods are all in a semi-circular structure.

[0017] By adopting the above technical solutions: This design enables the wear-resistant rods to more effectively disperse stress when subjected to the impact and friction of materials, reducing the wear rate.

[0018] Compared with the prior art, the present utility model has the following beneficial effects:

[0019] In the present utility model, the buffer springs in the buffer device can effectively absorb and disperse the impact force generated by the materials on the steel liner during the operation of the mill, greatly reducing the impact damage to the steel liner and other components of the mill, extending the overall service life of the equipment. Through the buffering effect, the vibration and noise caused by the impact force are reduced, making the operation of the mill more stable and reliable, improving the production efficiency and product quality. Since the buffer device reduces the wear and damage degree of the components, reduces the maintenance times of the equipment and the frequency of replacing components, thus reducing the maintenance cost;

[0020] In this utility model, the threaded connection method of the screw rod and the fixing bolt, as well as the clamping structure of the grinding shell steel plate, ensure the tight and firm connection between the components of the steel lining plate. It is not easy to loosen or fall off in the harsh working environment of the mill, guaranteeing the normal operation of the equipment. This connection method is reasonably designed, making the installation and disassembly of the steel lining plate simple and convenient, saving time and labor costs, and being beneficial to the maintenance and overhaul of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of a steel lining plate structure for a large-scale mining mill of this utility model;

[0022] Figure 2 is the overall structural schematic diagram of the buffer device of a steel lining plate structure for a large-scale mining mill of this utility model;

[0023] Figure 3 is the overall structural schematic diagram of the connection device of a steel lining plate structure for a large-scale mining mill of this utility model;

[0024] Figure 4 is the overall structural schematic diagram of the enlarged detail at A of a steel lining plate structure for a large-scale mining mill of this utility model.

[0025] In the figure: 1. Outer shell steel plate; 2. Buffer device; 3. Connection device; 21. Buffer steel plate shell; 22. First groove; 23. Buffer spring; 24. Limit block; 31. Grinding shell steel plate; 32. Wear-resistant rod; 33. Second groove; 35. Screw rod; 36. Fixing bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the technical means, creative features, achieved purposes and effects of this utility model easy to understand, the following further elaborates this utility model in combination with specific embodiments.

[0027] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0030] A steel liner structure for a large-scale mining mill, comprising a housing steel plate 1, a buffer device 2 fixedly connected to the inner wall of the housing steel plate 1, and a connecting device 3 clamped to the outer surface of the buffer device 2.

[0031] In this embodiment, the buffer device 2 includes a buffer steel plate shell 21. A plurality of first grooves 22 are formed in the inner wall of the buffer steel plate shell 21. A plurality of buffer springs 23 are fixedly connected to the inner groove walls of the plurality of first grooves 22. A limiting block 24 is arranged in each of the plurality of buffer springs 23. The buffer steel plate shell 21 is fixedly connected to the inner wall of the housing steel plate 1; the plurality of buffer springs 23 are arranged in a circular array with the buffer steel plate shell 21 as the center; the other sides of the plurality of buffer springs 23 are respectively movably connected to a plurality of second grooves 33.

[0032] Through the above solution: When the material impacts and rubs against the grinding shell steel plate 31, the impact force is transmitted to the buffer spring 23 connected thereto. Since the buffer springs 23 are distributed in a circular array centered on the buffer steel plate shell 21, they can evenly bear the impact force from all directions, causing the buffer springs 23 to be compressed. The limit blocks 24 inside the buffer springs 23 can prevent the springs from being damaged due to excessive compression. At the same time, the other side of the buffer spring 23 is movably connected to the second groove 33 on the outer surface of the grinding shell steel plate 31, ensuring that the buffer force can be effectively transmitted to the grinding shell steel plate 31. Through the compression and rebound of the buffer spring 23, the impact force from the material is absorbed and dispersed, reducing the damage to the entire steel liner structure and the grinding machine housing steel plate 1, extending the service life of the equipment. The buffer springs 23 distributed in a circular array make the force more uniform, avoiding structural damage caused by local excessive force. In this embodiment, the connecting device 3 includes the grinding shell steel plate 31 and the screw 35. There are two grinding shell steel plates 31. A number of second grooves 33 are formed on the outer surfaces of the two grinding shell steel plates 31. A number of wear-resistant rods 32 are fixedly connected to the inner walls of the two grinding shell steel plates 31. There are four screws 35. The upper and lower ends of the two grinding shell steel plates 31 are threadedly connected with fixing bolts 36 through the screws 35. The two grinding shell steel plates 31 are both clamped inside the buffer steel plate shell 21; the two grinding shell steel plates 31 have the same structure and are symmetrically distributed up and down; a number of wear-resistant rods 32 are all in a semi-circular structure.

[0033] Through the above solution: The two grinding shell steel plates 31 are symmetrically distributed up and down and are threadedly connected at the upper and lower ends by four screws 35 and fixing bolts 36, thus achieving stable fixation. During the operation of the grinding machine, the wear-resistant rods 32 on the inner walls of the grinding shell steel plates 31 directly contact the material and bear friction and wear. The design of the up-and-down symmetrical distribution and the connection method of the screws 35 and the fixing bolts 36 ensure the tight and stable connection between the two grinding shell steel plates 31 and with the buffer device 2, improving the reliability of the steel liner during the operation of the grinding machine. The semi-circular wear-resistant rods 32 increase the surface area of contact between the grinding shell steel plate 31 and the material, disperse the wear, improve the wear resistance of the grinding shell steel plate 31, and reduce the frequency of replacement and maintenance.

[0034] It should be noted that the present utility model is a steel lining plate structure for a large-scale mining mill. During the use process, when the material contacts and impacts and rubs against the mill shell steel plate 31 during the operation of the mill, the impact force and frictional force are transmitted to the buffer device 2. The buffer springs 23 inside the buffer steel plate shell 21 play a crucial buffering role. Since the buffer springs 23 are arranged in a circular array centered on the buffer steel plate shell 21, they can evenly bear the impacts from all directions. When the mill shell steel plate 31 is impacted, the buffer springs 23 are compressed, absorbing and dispersing the impact force, thereby reducing the damage to the overall structure of the steel lining plate and the steel plate 1 of the mill shell. At the same time, the second groove 33 opened on the outer surface of the mill shell steel plate 31 is movably connected to the other side of the buffer spring 23. This connection method enables the buffering effect of the buffer spring 23 to be more effectively transmitted to the mill shell steel plate 31, enhancing the buffering effect. The several wear-resistant rods 32 with a semi-circular structure fixedly connected to the inner wall of the mill shell steel plate 31 can increase the wear resistance of the mill shell steel plate 31 and extend its service life. The two mill shell steel plates 31 are symmetrically distributed up and down and are threadedly connected through the screw 35 and the fixing bolt 36, ensuring the stability and integrity of the steel lining plate structure and enabling it to maintain a good working state in the harsh working environment of the mill.

[0035] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A steel lining plate structure for a large mining mill, comprising a shell steel plate (1), characterized in that: The inner wall of the outer shell steel plate (1) is fixedly connected with a buffer device (2), and the outer surface of the buffer device (2) is clamped with a connecting device (3); The buffer device (2) comprises a buffer steel plate shell (21), the inner wall of the buffer steel plate shell (21) is provided with a plurality of No. 1 grooves (22), the inner groove walls of the plurality of No. 1 grooves (22) are fixedly connected with a plurality of buffer springs (23), and the plurality of buffer springs (23) are provided with limit blocks (24), and the buffer steel plate shell (21) is fixedly connected to the inner wall of the outer shell steel plate (1); The connecting device (3) comprises a grinding steel plate (31) and a screw (35). Two grinding steel plates (31) are provided. The outer surfaces of the two grinding steel plates (31) are provided with a plurality of No. 2 grooves (33). The inner walls of the two grinding steel plates (31) are fixedly connected with a plurality of wear-resistant rods (32). Four screws (35) are provided. The upper ends and lower ends of the two grinding steel plates (31) are threadedly connected with fixing bolts (36) through the screws (35). The two grinding steel plates (31) are clamped in the buffer steel plate shell (21).

2. A steel liner structure for a large mining mill according to claim 1, characterized in that: A plurality of the buffer springs (23) are arranged in a ring array with the buffer steel plate shell (21) as the center.

3. The steel liner structure for a large mining mill according to claim 1, characterized in that: The other sides of the plurality of buffer springs (23) are movably connected in the plurality of No. 2 grooves (33).

4. A steel liner structure for a large mining mill according to claim 1, characterized in that: The two shell grinding steel plates (31) have the same structure and are symmetrically distributed up and down.

5. The steel liner structure for a large mining mill according to claim 1, characterized in that: The plurality of wear-resistant rods (32) are all in a semicircular structure.

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