Bearing device of open mill roller

Abstract

A bearing device for open mill rollers belongs to the field of open mill rollers, rollers are arranged in an open mill side by side, the bearing device comprises a roller body and a fixing device, the roller body is parallel to the horizontal plane, a shaft roller is coaxially arranged in the roller body, the fixing device is arranged on the shaft roller, the fixing device comprises bearings, the bearings are arranged at the two ends of the shaft roller in a sleeved mode, and the fixing device is arranged on the shaft roller. The detachable sleeve is connected to the side, close to the roller body, of the bearing, the clamping ring is connected to the other side of the bearing, and the fixing devices are used for ensuring that the roller is kept stable in the rotating process, so that vibration and shaking are effectively reduced. And the condition that the roller moves outwards and shakes leftwards and rightwards in the running process is reduced.

Description

Technical Field

[0001] The utility model relates to a bearing device for a mixing mill roller, belonging to the field of mixing mill rollers. Background Art

[0002] An open-type rubber mill, short for open-type mixing mill, is a type of mixing machine with exposed rollers used in rubber factories to prepare plasticized rubber, mix rubber, or perform hot refining and molding. Its main working components are two hollow or drilled rollers rotating inward in opposite directions. The operator's side, called the front roller, can be moved horizontally back and forth manually or electrically to adjust the roller gap to suit operational requirements. The rear roller is fixed and cannot be moved back and forth. The two rollers are generally the same size and rotate relative to each other at different speeds. As the rollers rotate, the raw rubber or rubber compound is drawn into the gap between the rollers, where it is subjected to intense shearing, achieving the goal of plastication or mixing.

[0003] Traditionally, the rollers of open mills are fixed using flanges and screws. While this method can achieve roller installation and fixation to a certain extent, it has many disadvantages in actual use. On the one hand, the flange and screw connection structure is relatively complex, requiring a lot of time and manpower to operate during the installation and disassembly of the equipment, which reduces production efficiency. Frequent assembly and disassembly can easily lead to loosening of screws and wear of flanges, which in turn affects the reliability of the connection. On the other hand, this traditional connection method has difficulty in effectively restraining the bearings and cannot effectively prevent the rollers from shifting outward and shaking left and right during operation. Once the rollers shift, the gap between the rollers will become uneven, affecting the mixing effect of the material and the quality of the product. In severe cases, it may even cause equipment failure, posing a threat to the safety of the equipment and operators. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bearing device for a mixing mill roller to solve the shortcomings of the existing mixing mill roller fixing method, better limit the bearing, prevent the roller from moving outward and shaking left and right, and improve the stability of the equipment and the technical problem of production efficiency.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solution: a bearing device for a roller of an open mill, wherein rollers are arranged side by side inside the open mill, and the bearing device comprises:

[0006] The roller body is arranged parallel to the horizontal plane, and a shaft roller is coaxially arranged inside the roller body. The shaft roller is provided with a fixing device for preventing the roller body from moving outward and shaking left and right;

[0007] A fixing device, the fixing device includes bearings, the bearing sleeves are arranged at both ends of the shaft roller, and are matched with the shaft roller in the longitudinal and axial directions. The side of the bearing close to the roller body is connected with a disassembly sleeve, and the other side is connected with a retaining ring. The fixing device is used to ensure that the roller remains stable during rotation and effectively reduce vibration and shaking.

[0008] Furthermore, the clamping ring is composed of two semicircular arc clamping strips and is in a ring shape, the inner circular surface of which is tightly fitted with the shaft roller, and a fixing block is fixedly extended from the top of the clamping ring.

[0009] Furthermore, the clamping ring is firmly mounted on the shaft roller by clamping the fixing block.

[0010] Furthermore, the fixing block is provided with a through hole, and the through hole is provided on the front or side of the fixing block.

[0011] Furthermore, the clamping ring is fastened to the shaft roller, and the fastening connection is one of a bolt connection and a fastener connection.

[0012] Furthermore, the shaft roller is stepped, and its radius decreases from the outer edge to the axis center to form at least two different levels of cylindrical surfaces.

[0013] Furthermore, the retaining ring is fixed to the end face of the lower cylindrical surface close to the axis, while the disassembly sleeve and the bearing are fixed to the end face of the upper cylindrical surface on the outside, so that the retaining ring, disassembly sleeve and the bearing have different installation heights in the axial direction, and the three cooperate with each other but do not overlap in height.

[0014] Furthermore, the bearing, the disassembly sleeve and the snap ring are detachably connected to each other.

[0015] Furthermore, the roller body and the shaft roller are designed to be integrally formed, and the shaft roller is coaxially fixed inside the roller body.

[0016] The beneficial effects of the utility model are:

[0017] The present application achieves the purpose of preventing the roller from moving outward or shaking left and right by arranging a fixing device on the shaft roller. The fixing device is composed of a disassembly sleeve, a bearing and a retaining ring. By assembling the bearing and the disassembly sleeve as a component and then fixing them with a retaining ring, the time for installation and disassembly of the equipment is greatly shortened, maintenance is more convenient, and production efficiency is improved. In addition, the design of this fixing device can better limit the axial and radial movement of the bearing, making the support structure of the entire roller more stable, effectively reducing vibration and shaking, improving the smoothness of equipment operation, and reducing the risk of equipment failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 It is a partial structural diagram of the open mixing mill of the utility model;

[0020] Figure 2 This is a structural schematic diagram of a bearing device for a mixing mill roller according to the present invention;

[0021] Figure 3 This is a schematic structural diagram of the clamping ring of the utility model;

[0022] Figure 4 This is a structural diagram of a modified example 1 of the clamping ring of the present invention;

[0023] Figure 5 This is a structural diagram of a second modification of the clamping ring of the present invention.

[0024] The reference numerals are as follows: 1, mixing mill; 2, roller; 21, roller body; 22, shaft roller; 23, snap ring; 231, fixing block; 232, through hole; 24, bearing; 25, disassembly sleeve. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 、 Figure 2 As shown, the utility model provides a technical solution for the bearing device of the roller of the mixing mill: the rollers 2 are arranged side by side inside the mixing mill 1, which includes:

[0027] The roller body 21 is arranged parallel to the horizontal plane, and a shaft roller 22 is coaxially arranged inside the roller body 21. The shaft roller 22 is provided with a fixing device for preventing the roller body 21 from moving outward and shaking left and right;

[0028] The fixing device includes a bearing 24, which is sleeved on both ends of the shaft roller 22 and matched with the shaft roller 22 in the longitudinal and axial directions. The side of the bearing 24 close to the roller body 21 is connected to a disassembly sleeve 25, and the other side is connected to a retaining ring 23. The fixing device is used to ensure that the roller 2 remains stable during rotation and effectively reduce vibration and shaking.

[0029] In order to prevent the roller from moving outward, the clamping ring 23 is composed of two semicircular arc clamping strips and is in a ring shape. Its inner circle surface is tightly fitted with the shaft roller 22. A fixing block 231 is fixedly extended from the top of the clamping ring 23.

[0030] In order to fix the snap ring, the snap ring 23 is firmly installed on the shaft roller 22 by clamping the fixing block 231 .

[0031] In order to provide multiple fixing methods, the fixing block 231 is provided with a through hole 232 , and the through hole 232 is provided on the front or side of the fixing block 231 .

[0032] In order to improve the tightness of the connection, the clamping ring 23 is tightly connected to the shaft roller 22, and the tight connection is one of a bolt connection and a fastener connection.

[0033] In order to achieve installation at different positions, the shaft roller 22 is stepped, and its radius decreases from the outer edge to the axis center to form at least two different cylindrical surfaces.

[0034] In order to reduce mutual interference between devices, the retaining ring 23 is fixed to the end face of the lower cylindrical surface close to the axis, while the disassembly sleeve 25 and the bearing 24 are fixed to the end face of the upper cylindrical surface on the outside, so that the retaining ring 23, the disassembly sleeve 25 and the bearing 24 have different installation heights in the axial direction, and the three cooperate with each other but the heights do not overlap.

[0035] In order to facilitate maintenance and replacement, the bearing 24, the disassembly sleeve 25 and the snap ring 23 are detachably connected to each other.

[0036] In order to improve the stability of rotation, the roller body 21 and the shaft roller 22 are designed to be integrally formed, and the shaft roller 22 is coaxially fixed inside the roller body 21.

[0037] Example 1:

[0038] The clamping ring 23 of the present application is provided with a fixing block 231 , and the clamping ring 23 can be directly clamped to fit the shaft roller 22 by clamping the left and right fixing blocks 231 .

[0039] This embodiment has a simple structure and is easy to operate. It can quickly complete the installation and disassembly of the retaining ring 23, while ensuring the stability of the retaining ring 23 on the shaft roller 22, providing convenient conditions for subsequent maintenance and adjustment. This convenient installation and disassembly method creates extremely favorable conditions for subsequent maintenance and adjustment work. Maintenance personnel can easily tighten or loosen the retaining ring 23 to perform regular inspections, cleaning or replacements and other maintenance operations, timely discover and resolve potential fault hazards, reduce equipment downtime, and improve the overall utilization rate and production efficiency of the equipment.

[0040] Example 2:

[0041] This embodiment is a variation 1 of the retaining ring 23 extended from embodiment 1. A through hole 232 is provided on the front of the fixing block 231 on the retaining ring 23, which can be matched with a concave fastener. The two fasteners are used to achieve a fastening connection on the front and back of the retaining ring 23. This design increases the reliability of the fixation of the retaining ring 23 on the basis of embodiment 1. The matching method of the concave fastener and the through hole 232 not only provides a more stable fixing effect, but also greatly enhances the stability and safety of the device. In actual use, this matching method can effectively prevent the retaining ring 23 from being displaced or loosened during operation, avoids equipment failure due to the instability of the retaining ring 23, and ensures the long-term reliable operation of the equipment.

[0042] This embodiment increases the reliability of the fixing of the retaining ring 23. At the same time, the matching mode of the concave fastener and the through hole 232 provides more flexibility for the installation and maintenance of the equipment. When it is necessary to disassemble or replace parts, the recessed fastener can be quickly loosened, the retaining ring 23 can be removed, and the equipment can be quickly maintained and adjusted. At the same time, this design also simplifies the installation process, improves installation efficiency, and reduces installation time and labor costs.

[0043] Example 3:

[0044] This embodiment is a second variation of the retaining ring 23 extended from the first embodiment. A through hole 232 is provided on the side of the fixing block 231 of the retaining ring 23 , and fastening can be achieved by passing bolts and nuts through the through hole 232 .

[0045] When the nut is tightened, the threaded fit between the bolt and the nut will generate an axial force, which is transmitted to the fixing block 231 of the snap ring 23 through the bolt, causing the snap ring 23 to be subjected to tension in the axial direction. When the nut is tightened to a certain extent, the snap ring 23 is firmly fixed on the shaft roller 22, which is suitable for occasions requiring higher fixing strength.

[0046] This fastening method greatly enhances the applicable scenarios of the clamping ring 23, enabling it to meet different usage requirements and working conditions. This fastening method not only improves the overall versatility and practicality of the device, but also provides great convenience for users to install and maintain the equipment under different working conditions, reduces the use and maintenance costs of the equipment, and extends the service life of the equipment.

[0047] The present application achieves the purpose of preventing the roller 2 from moving outward or shaking left and right by arranging a fixing device on the shaft roller 22. The fixing device is composed of a disassembly sleeve 25, a bearing 24 and a retaining ring 23. By assembling the bearing 24 and the disassembly sleeve 25 as a component and then fixing them with the retaining ring 23, the time for installation and disassembly of the equipment is greatly shortened, maintenance is more convenient, and production efficiency is improved. In addition, the design of this fixing device can better limit the axial and radial movement of the bearing 24, making the support structure of the entire roller 2 more stable, effectively reducing vibration and shaking, improving the smoothness of equipment operation, and reducing the risk of equipment failure.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0049] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A bearing device for a mixing mill roller, wherein rollers (2) are arranged side by side inside the mixing mill (1), characterized in that: It includes: A roller body (21), the roller body (21) is arranged parallel to a horizontal plane, and an axial roller (22) is coaxially arranged inside the roller body (21), and a fixing device is provided on the axial roller (22) for preventing the roller body (21) from moving outward and shaking left and right; A fixing device, the fixing device comprising a bearing (24), the bearing (24) being sleeved on both ends of the shaft roller (22) and being matched with the shaft roller (22) in the longitudinal and axial directions, the bearing (24) being connected to a disassembly sleeve (25) on one side close to the roller body (21), and being connected to a snap ring (23) on the other side, the fixing device being used to ensure that the roller (2) remains stable during rotation, and effectively reducing vibration and shaking; A fixing block (231) is fixedly extended from the top of the clamping ring (23), and the clamping ring (23) is firmly mounted on the shaft roller (22) by clamping the fixing block (231); The shaft roller (22) is stepped, and its radius decreases from the outer edge to the axis to form at least two different levels of cylindrical surfaces.

2. The bearing device for a mixing mill roller according to claim 1, characterized in that: The clamping ring (23) is composed of two semicircular arc clamping strips and is in a ring shape, and its inner circular surface is tightly fitted with the shaft roller (22).

3. The bearing device for a mixing mill roller according to claim 2, characterized in that: The fixing block (231) is provided with a through hole (232), and the through hole (232) is provided on the front or side of the fixing block (231).

4. The bearing device for a mixing mill roller according to claim 1, characterized in that: The clamping ring (23) is fastened to the shaft roller (22), and the fastening connection is one of a bolt connection and a fastener connection.

5. The bearing device for a mixing mill roller according to claim 1, characterized in that: The snap ring (23) is fixed to the end face of the lower cylindrical surface close to the axis, while the disassembly sleeve (25) and the bearing (24) are fixed to the end face of the upper cylindrical surface on the outside, so that the snap ring (23), the disassembly sleeve (25) and the bearing (24) have different installation heights in the axial direction, and the three cooperate with each other but do not overlap in height.

6. The bearing device for a mixing mill roller according to claim 1, characterized in that: The bearing (24), the disassembly sleeve (25) and the snap ring (23) are detachably connected to each other.

7. The bearing device for a mixing mill roller according to claim 1, characterized in that: The roller body (21) and the shaft roller (22) are designed to be integrally formed, and the shaft roller (22) is coaxially fixed inside the roller body (21).

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