Shock-resistant ball mill rubber lining plate

Abstract

The utility model relates to the technical field of rubber lining plates, in particular to an anti-impact ball mill rubber lining plate which comprises an arch-shaped plate and a lifting strip, the arch-shaped plate and the lifting strip are fixed in a cylinder body of a ball mill, and the lifting strip is fixed with a locking piece on the cylinder body and abuts against the side edge of the arch-shaped plate. Wherein the lifting strip comprises a rubber part and an alloy part, a notch is formed in the side edge of the rubber part, the structure of the lifting strip is further optimized, the alloy part is fixed to the side edge of the rubber part, the alloy part is used for lifting steel balls, the characteristics of high abrasion resistance and high impact resistance of an alloy steel strip are utilized, and therefore the steel balls are lifted. In addition, the alloy part and the rubber part are connected and fixed through the locking assembly, follow-up disassembly and replacement are avoided, the overall structural design is simple, and the durability and applicability of a traditional rubber lining plate are further optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber linings, in particular to an impact-resistant rubber lining for a ball mill. Background Art

[0002] Ball mills are essential milling equipment used in cement plants, steel mills, power plants, mining, chemical, and metallurgical industries. Ball mill rubber liners are key wear-resistant components that ensure proper operation. They protect the mill cylinder from direct impact and friction with the grinding media and materials, while also enhancing the grinding media's pulverizing effect on the material.

[0003] The rubber lining generally includes an arched plate and a lifting strip. The lifting strip is fixed to the inner wall of the cylinder by bolt fasteners and is pressed against the side of the arched plate. For example, an assembled ball mill liner disclosed in Chinese patent announcement number "CN219765523U" includes a liner body and a galvanized weight-reducing groove. A rubber filling layer is provided inside the galvanized weight-reducing groove, and a fixing bolt is provided inside the rubber filling layer. A nut is provided at the bottom of the galvanized weight-reducing groove.

[0004] Traditional rubber has poor impact resistance, especially when the ball mill grinds materials with large particle size and high hardness. The grinding body and the material have a greater impact on the lifting bar, causing the rubber to wear quickly. Based on this, in order to further optimize the impact resistance of the existing lifting bar, we propose an impact-resistant ball mill rubber liner. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art, such as the large impact of grinding bodies and materials on the lifting bars, which causes rapid wear of the rubber, and proposes an impact-resistant ball mill rubber lining.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An impact-resistant ball mill rubber liner is designed, comprising an arched plate fixed to the center of the ball mill cylinder and a lifting bar, wherein the lifting bar is fixed to a locking member on the cylinder and presses against the side of the arched plate;

[0008] Among them, the lifting strip includes a rubber part and an alloy part. A notch is opened on the side of the rubber part. The alloy part is fixed in the notch through a locking assembly. A frame is also embedded in the bottom of the lifting strip, and avoidance openings are spaced apart on the end face of the frame.

[0009] Furthermore, a plurality of connecting columns are fixed on the back side of the alloy part, and a plurality of mounting holes are opened inwardly of the rubber part at the notch, and the connecting columns are inserted into the mounting holes.

[0010] Furthermore, the locking assembly is inserted into the screw along the avoidance opening, and one end of the screw passes through and extends into the mounting hole;

[0011] Wherein, a guiding inclined groove is provided on the end surface of the connecting column, and the top of the screw rod contacts the inclined surface of the guiding inclined groove to lock it.

[0012] Furthermore, a step hole connected to the mounting hole is opened at the bottom below the rubber part, a nut is embedded in the step hole, and the screw is threadedly connected to the nut.

[0013] Furthermore, the end surface of the connecting column can be detachably connected to an elastic structure, and the elastic structure is used to contact the inner bottom surface of the mounting hole.

[0014] Furthermore, the elastic structure includes an elastic ring, and a deformation groove is opened on the outer circumference of the elastic ring, wherein a bolt is provided inside the elastic ring, and the bolt passes through the elastic ring and is threadedly connected to the connecting column.

[0015] The utility model proposes an impact-resistant ball mill rubber lining, which has the following beneficial effects: the utility model further optimizes the structure of the lifting bar, and fixes an alloy part on the side of the rubber part, the alloy part is used to lift the steel balls, and utilizes the high wear resistance and strong impact resistance of the alloy steel bar to improve the wear resistance and impact resistance of the lifting bar, thereby extending the service life of the lifting bar. In addition, the alloy part and the rubber part are connected and fixed with a locking assembly to avoid subsequent disassembly and replacement. The overall structural design is simple, and the durability and applicability of the traditional rubber lining are further optimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the installation structure of the arched plate and the lifting strip of the utility model;

[0017] Figure 2 This is a cross-sectional view of the lifting strip of the utility model;

[0018] Figure 3 This is a schematic diagram of the alloy structure of the utility model.

[0019] In the figure: 1. Arch plate; 2. Lifting bar; 21. Rubber part; 22. Alloy part; 23. Connecting column; 231. Guide bevel; 24. Mounting hole; 25. Nut; 3. Locking assembly; 31. Screw; 4. Frame; 41. Avoidance; 5. Elastic structure; 51. Elastic ring; 52. Deformation groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-3 This is an embodiment of the present invention, which discloses an impact-resistant ball mill rubber liner, which includes an arched plate 1 fixed to the center of the ball mill cylinder and a lifting bar 2. Specifically, the lifting bar 2 is fixed to a locking member on the cylinder and presses against the side of the arched plate 1;

[0022] Among them, the lifting bar 2 includes a rubber part 21 and an alloy part 22. A notch is opened on the side of the rubber part 21. The alloy part 22 is fixed in the notch by a locking assembly 3. The bottom of the lifting bar 2 is also embedded with a skeleton 4, and the end surface of the skeleton 4 is provided with avoidance openings 41 at intervals.

[0023] Preferably, the rubber part 21 described in this embodiment is a rubber block, and the alloy part 22 is an alloy steel bar, such as a chromium-molybdenum alloy steel bar, high manganese steel ZGMn13, etc., and the high wear resistance and strong impact resistance of the alloy steel bar are utilized to improve the wear resistance and impact resistance of the lifting bar, thereby extending the service life of the lifting bar.

[0024] In some embodiments, a plurality of connecting columns 23 are fixed to the back of the alloy part 22 in the present invention, and a plurality of mounting holes 24 are opened inwardly from the rubber part 21 at the notch, and the connecting columns 23 are inserted into the mounting holes 24. More specifically, the mounting holes 24 described in this embodiment are inclined and perpendicular to the inclined surface of the notch, and the connecting columns 23 are vertically fixed to the back end of the alloy part 22.

[0025] On the basis of the above embodiment, the screw 31 of the locking assembly 3 in this embodiment is inserted along the avoidance opening 41, and one end of the screw 31 passes through and extends into the mounting hole 24, wherein a step hole connected to the mounting hole 24 is opened at the bottom below the rubber part 21, and a nut 25 is embedded in the step hole, and the screw 31 is threadedly connected to the nut 25. It should be pointed out that the nut 25 in this embodiment is set to a polygonal structure to prevent it from rotating in the circumferential direction. Of course, in order to limit the upper and lower positions of the nut 25, a retaining spring can be embedded on the inner side of the step hole in this embodiment. The retaining spring is used to stop the position of the nut 25 while ensuring the detachable function.

[0026] A guiding inclined groove 231 is provided on the end surface of the connecting column 23 , and the top of the screw rod 31 contacts the inclined surface of the guiding inclined groove 231 to lock it.

[0027] During the specific installation, first insert the connecting column 23 on the alloy part 22 into the mounting hole 24 of the notch, then rotate the screw 31 located on the inner side of the frame 4, and move the nut 25 through the screw 31. When the screw 31 is screwed in, its end will contact the guide groove 231 on the outside of the connecting column 23. At this time, the connecting column 23 can be further pulled toward the inside of the mounting hole 24 by contacting the guide groove 231 to ensure that the alloy part 22 is firmly installed.

[0028] In some embodiments, the end surface of the connecting column 23 of the present invention can be detachably connected to an elastic structure 5 , and the elastic structure 5 is used to contact the inner bottom surface of the mounting hole 24 .

[0029] Specifically, the elastic structure 5 includes an elastic ring 51, on the outer peripheral surface of which a deformation groove 52 is provided, wherein a bolt is provided inside the elastic ring 51, and the bolt passes through the elastic ring 51 and is threadedly connected to the connecting column 23. The elastic ring 51 can also be set as a rubber part, one end of which is open, and the other end is provided with a through hole for placing the bolt. The elastic ring 51 is fixed by the cooperation of the bolt and the through hole. With the help of the provided elastic ring 51, an elastic resistance force is provided to the connecting column 23 when assembling the alloy part 22, so that when disassembling, the connecting column 23 can be pushed to move outside to facilitate the removal of the alloy part 22.

[0030] In summary, the structure of the lifting bar 2 is further optimized in the utility model by fixing an alloy part 22 on the side of the rubber part 21, and the alloy part 22 is used to lift the steel ball. The high wear resistance and strong impact resistance of the alloy steel bar are used to improve the wear resistance and impact resistance of the lifting bar, thereby extending the service life of the lifting bar. In addition, the alloy part 22 and the rubber part 21 are connected and fixed by a locking assembly 3 to avoid subsequent disassembly and replacement. The overall structural design is simple, which further optimizes the durability and applicability of the traditional rubber lining.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An impact-resistant ball mill rubber liner, comprising an arched plate (1) fixed to the center of the ball mill cylinder and a lifting bar (2), characterized in that: The lifting bar (2) is fixed to the locking piece on the cylinder and pressed against the side of the arch plate (1); The lifting strip (2) includes a rubber portion (21) and an alloy portion (22), a notch is provided on the side of the rubber portion (21), and the alloy portion (22) is fixed in the notch via a locking assembly (3), a frame (4) is also embedded in the bottom of the lifting strip (2), and avoidance openings (41) are provided at intervals on the end surface of the frame (4).

2. The impact-resistant ball mill rubber liner according to claim 1, characterized in that: A plurality of connecting columns (23) are fixed on the back of the alloy part (22); a plurality of mounting holes (24) are opened inwardly of the rubber part (21) at the notch; and the connecting columns (23) are inserted into the mounting holes (24).

3. The impact-resistant ball mill rubber liner according to claim 2, characterized in that: The locking assembly (3) has a screw rod (31) inserted into the avoidance opening (41), and one end of the screw rod (31) passes through and extends into the mounting hole (24); A guiding inclined groove (231) is provided on the end surface of the connecting column (23), and the top of the screw rod (31) contacts the inclined surface of the guiding inclined groove (231) to lock it.

4. The impact-resistant ball mill rubber liner according to claim 3, characterized in that: A step hole connected to the mounting hole (24) is provided at the bottom below the rubber part (21), a nut (25) is embedded in the step hole, and the screw rod (31) is threadedly connected to the nut (25).

5. The impact-resistant ball mill rubber liner according to claim 2, characterized in that: The end surface of the connecting column (23) is also detachably connected to an elastic structure (5), and the elastic structure (5) is used to abut against the inner bottom surface of the mounting hole (24).

6. The impact-resistant ball mill rubber liner according to claim 5, characterized in that: The elastic structure (5) comprises an elastic ring (51), a deformation groove (52) is provided on the outer peripheral surface of the elastic ring (51), wherein a bolt is provided inside the elastic ring (51), the bolt passes through the elastic ring (51) and is threadedly connected to the connecting column (23).

Images