Cooling device of three-roller machine

Abstract

The utility model relates to a cooling device of a three-roller machine. The cooling device comprises a base; a support frame; the roller wheel assembly is installed on the supporting frame and comprises three roller wheels which are tightly attached to one another, and a grinding space is formed between every two adjacent roller wheels and used for grinding materials; the cooling assembly is mounted on one side of the roller assembly and used for cooling the roller assembly; each roller is provided with a rotating shaft which is provided with a hollow cavity; the cooling assembly comprises a containing cavity and a cooling pipe installed in the containing cavity, an opening is formed in one end of the hollow cavity and communicates with the containing cavity, and at least part of the cooling pipe stretches into the hollow cavity through the opening so that the roller can be efficiently cooled, the situation that properties of materials are changed due to the high temperature of the roller is avoided, and the machining quality is guaranteed; damage of high temperature to the roller is reduced, the service life is prolonged, and the maintenance cost is reduced; stable operation of equipment is maintained, shutdown maintenance is reduced, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of three-roll milling technology, specifically to a cooling device for a three-roll mill. Background Technology

[0002] In the field of materials processing, the three-roll mill is a commonly used piece of equipment for grinding, dispersing, and other processing of various materials to obtain the desired material properties and textures. With the continuous development of industrial production, increasingly higher demands are being placed on the working efficiency and processing quality of the three-roll mill.

[0003] During prolonged operation, traditional three-roll mills generate significant heat due to continuous friction between the rollers and the material. If this heat cannot be dissipated promptly, the roller temperature will rise rapidly. On one hand, high temperatures may alter the properties of the material, affecting product quality and performance consistency. On the other hand, excessively high temperatures can damage the rollers themselves, shortening their lifespan, increasing equipment maintenance costs and downtime, and ultimately impacting the continuity and stability of the entire production process.

[0004] Therefore, it is necessary to improve the existing technology to overcome the aforementioned defects. Utility Model Content

[0005] In view of this, the present application provides a three-roll mill cooling device to solve at least one problem existing in the prior art, comprising:

[0006] Base;

[0007] A support frame is mounted on the base;

[0008] The roller assembly, mounted on the support frame, includes three rollers that are in close contact with each other and a drive unit connected to the rollers. The drive unit is used to drive the rollers to rotate, and there is a grinding space between two adjacent rollers for grinding materials.

[0009] A cooling assembly, installed on one side of the roller assembly, is used to cool the roller assembly;

[0010] Each of the rollers has a rotating shaft with a hollow cavity;

[0011] The cooling assembly includes a accommodating cavity and a plurality of cooling pipes installed in the accommodating cavity. One end of the hollow cavity is provided with an opening communicating with the accommodating cavity, and at least a portion of the cooling pipes extend into the hollow cavity through the opening.

[0012] Optionally, in the above-mentioned three-roll mill cooling device, the cooling component includes an inlet, an outlet, and an overflow port that are connected to the accommodating cavity. The inlet is connected to a plurality of cooling pipes to deliver coolant into the cooling pipes.

[0013] The overflow outlet is higher than the liquid outlet.

[0014] Optionally, in the above-mentioned three-roll mill cooling device, the cooling component further includes a connector, which includes an inlet and several outlets. The inlet is connected to the liquid inlet, and the outlets are connected to several cooling pipes one by one.

[0015] Optionally, in the above-mentioned three-roll mill cooling device, the cooling pipe includes a first port and a second port arranged opposite to each other, the first port being connected to the output port and the second port being connected to the hollow cavity.

[0016] Optionally, in the above-mentioned three-roll mill cooling device, the cooling pipe is coaxially arranged with the hollow cavity, and the ratio of the length of the cooling pipe in the hollow cavity to the length of the hollow cavity in the axial direction is 0.75-0.9.

[0017] Optionally, in the above-mentioned three-roll mill cooling device, the accommodating cavity includes a side wall and a bottom wall, the side wall is inclined, and the liquid outlet is located on the bottom wall.

[0018] Optionally, the above-mentioned three-roll mill cooling device further includes a connecting pipe for connecting to the rotating shaft, and the rotating shaft is rotatable relative to the connecting pipe, and the hollow cavity is formed on the connecting pipe and the rotating shaft.

[0019] Optionally, the above-mentioned three-roll mill cooling device further includes a gear assembly disposed between the cooling component and the roller assembly, the gear assembly including a plurality of gears, at least some of the gears being sleeved on the outside of the hollow cavity.

[0020] Optionally, the above-mentioned three-roll mill cooling device further includes a bearing assembly disposed between the cooling component and the roller assembly, the bearing assembly being sleeved on the outside of the rotating shaft.

[0021] Compared with the prior art, this application has the following advantages: by setting a rotating shaft and a roller and cooling pipe sleeved on the outside of the rotating shaft, and the rotating shaft is set as a hollow cavity, at least part of the cooling pipe extends into the hollow cavity to efficiently cool the roller, avoid the material from changing its properties due to the high temperature of the roller, and ensure processing quality; reduce the damage of high temperature to the roller, extend its service life, and reduce maintenance costs; maintain stable operation of the equipment, reduce downtime maintenance, and improve production efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the three-roll mill shown in this embodiment;

[0023] Figure 2 This is a schematic diagram of the cooling assembly shown in this embodiment;

[0024] Figure 3 This is a schematic diagram of the cooling assembly shown in this embodiment from another direction.

[0025] Figure label:

[0026] 1-Base;

[0027] 2-Support frame;

[0028] 3-Roller assembly, 31-Roller, 311-Shaft, 312-Opening, 32-Drive component;

[0029] 4-Cooling component, 41-Accommodation cavity, 411-Side wall, 412-Bottom wall, 42-Cooling pipe, 43-Inlet, 44-Outlet, 45-Overflow port, 46-Connector;

[0030] 5-Gear assembly;

[0031] 6-Bearing assembly. Detailed Implementation

[0032] The exemplary embodiments disclosed in this application will now be described in more detail. Numerous specific details are set forth in the following description to provide a more thorough understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without one or more of these details. In other instances, to avoid confusion with this application, some technical features well-known in the art have not been described; that is, not all features of actual embodiments are described herein, nor are well-known functions and structures described in detail.

[0033] It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this application, the first element, component, area, layer, or portion discussed below may be referred to as a second element, component, area, layer, or portion. And the discussion of a second element, component, area, layer, or portion does not imply that the first element, component, area, layer, or portion necessarily exists in this application.

[0034] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used here for convenience to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms are intended to also include different orientations of devices in use and operation.

[0035] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. When used herein, the singular forms “a,” “an,” and “ / the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “compose” and / or “comprising,” when used in this specification, identify the presence of features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0036] To fully understand this application, detailed steps and structures will be presented in the following description to illustrate the technical solution of this application. Preferred embodiments of this application are described in detail below; however, in addition to these detailed descriptions, this application may have other implementation methods.

[0037] Please refer to Figures 1-3 As shown in the preferred embodiment of this application, a three-roll mill cooling device is installed in a three-roll mill, which is used to disperse and grind viscous materials to achieve the required specifications.

[0038] The three-roll mill cooling device includes a base 1, a support frame 2 mounted on the base 1, a roller assembly 3 mounted on the support frame 2, and a cooling assembly 4. The roller assembly 3 is used to grind, disperse, and discharge viscous materials. The cooling assembly 4 is used to cool the roller assembly 3, so as to efficiently cool the roller 31. This ensures that the roller 31 can be cooled down through the cooling assembly 4 during the grinding process, maintaining the normal working temperature of the roller 31, thereby ensuring the grinding quality of the material and the stable operation of the equipment.

[0039] The roller assembly 3 includes three rollers 31 that are closely attached to each other and a drive member 32 connected to the rollers 31. The drive member 32 is used to drive the rollers 31 to rotate. There is a grinding space between two adjacent rollers 31 for grinding materials.

[0040] In this embodiment, each roller 31 has a rotating shaft 311, and the rotating shaft 311 has a hollow cavity; the cooling assembly 4 includes a receiving cavity 41 and a plurality of cooling pipes 42 installed in the receiving cavity 41. One end of the hollow cavity is provided with an opening 312 communicating with the receiving cavity 41. At least a portion of the cooling pipes 42 extend into the hollow cavity so that the coolant enters the hollow cavity from the cooling pipes 42, carries away the heat of the roller 31, and then flows out of the hollow cavity from the opening 312, thereby realizing heat exchange, that is, cooling of the roller 31.

[0041] It should be noted that in this embodiment, the cooling pipe 42 is coaxially arranged with the hollow cavity, and the ratio of the length of the cooling pipe 42 to the length of the hollow cavity in the axial direction is 0.75-0.9. The advantage of this arrangement is that it optimizes the flow path and heat exchange efficiency of the coolant while ensuring sufficient contact between the coolant and the heating parts of the roller 31. This avoids insufficient cooling due to an excessively short cooling pipe 42, and also prevents excessively long cooling pipes from increasing coolant flow resistance or causing unnecessary cost increases. This allows the cooling system to achieve a balance between energy utilization and cost control while efficiently cooling the roller 31, ensuring economical operation of the three-roll mill under stable cooling conditions, extending the continuous working time of the equipment, and improving production efficiency.

[0042] In an optional embodiment, the cooling assembly 4 includes an inlet 43, an outlet 44, and an overflow 45 communicating with the accommodating cavity 41. The inlet 43 is used for the inlet of coolant, and the outlet 44 is used for the outlet of coolant. In this embodiment, the inlet 43 is connected to a plurality of cooling pipes 42 to deliver coolant into the cooling pipes 42, thereby achieving a continuous supply of coolant to the cooling pipes 42 to remove heat from the roller 31. It should be noted that the overflow 45 is higher than the outlet 44 to prevent coolant leakage and other problems caused by excessive flow of coolant into the hollow cavity, thus ensuring the stability and reliability of the cooling effect.

[0043] In an optional embodiment, the cooling assembly 4 further includes a connector 46, which includes an inlet and several outlets. The inlet is connected to the liquid inlet 43, and the outlets are connected to several cooling pipes 42 one by one, thereby distributing the coolant evenly and stably to each cooling pipe 42. This avoids excessive differences in the flow rate of the coolant in different cooling pipes 42, thus ensuring that the cooling effect of each roller 31 is uniform and consistent. This further improves the stability and reliability of the three-roll mill during operation, helps to improve the stability of product quality, and reduces the material grinding differences caused by uneven temperature of the rollers 31.

[0044] In an optional embodiment, the cooling pipe 42 includes a first port and a second port disposed opposite to each other, the first port being connected to an output port and the second port being connected to a hollow cavity.

[0045] In an optional embodiment, the accommodating cavity 41 includes a side wall 411 and a bottom wall 412. The side wall 411 is inclined, and the outlet 44 is located on the bottom wall 412. This facilitates the natural flow of coolant to the outlet 44 under the action of gravity, making it easier to discharge and collect coolant, reducing coolant residue in the accommodating cavity 41, improving the recycling rate of coolant, and also facilitating the cleaning and maintenance of the cooling component 4.

[0046] In an optional embodiment, the three-roll mill cooling device further includes a connecting pipe for connecting to a rotating shaft 311, and the rotating shaft 311 is rotatable relative to the connecting pipe, with a hollow cavity formed on the connecting pipe and the rotating shaft 311.

[0047] In an optional embodiment, the three-roll mill cooling device further includes a gear assembly 5 disposed between the cooling assembly 4 and the roller assembly 3. The gear assembly 5 includes several gears, with at least some gears sleeved on the outside of the hollow cavity. This enables power transmission, accurately transmitting the power of the drive component 32 to ensure the precise speed ratio between the three rollers 31, meeting the process requirements of material grinding. At the same time, it does not affect the cooling effect of the cooling pipe 42 on the hollow cavity of the rollers 31, avoiding interference with the transmission part of the equipment due to the addition of a cooling system. This improves the overall performance and reliability of the equipment, helps to improve the accuracy and efficiency of material grinding, and enhances product quality.

[0048] In an optional embodiment, the three-roll mill cooling device further includes a bearing assembly 6 disposed between the cooling assembly 4 and the roller assembly 3, the bearing assembly 6 being sleeved on the outside of the rotating shaft 311. The advantage of this arrangement is that, being located between the cooling assembly 4 and the roller assembly 3, it effectively supports the rotation of the rotating shaft 311, reduces frictional resistance between the rotating shaft 311 and other components, lowers energy loss, and improves equipment operating efficiency. Simultaneously, with the bearing assembly 6 sleeved on the outside of the rotating shaft 311, the coolant flowing within the hollow cavity of the rotating shaft 311 dissipates heat from the rollers 31 while also carrying away heat from the bearing assembly 6.

[0049] The above is only one specific implementation of this application, and any other improvements made based on the concept of this application shall be considered within the scope of protection of this application.

Claims

1. A cooling device for a three-roll mill, characterized in that, include: Base; A support frame is mounted on the base; The roller assembly, mounted on the support frame, includes three rollers that are in close contact with each other and a drive unit connected to the rollers. The drive unit is used to drive the rollers to rotate, and there is a grinding space between two adjacent rollers for grinding materials. A cooling assembly, installed on one side of the roller assembly, is used to cool the roller assembly; Each of the rollers has a rotating shaft with a hollow cavity; The cooling assembly includes a accommodating cavity and a plurality of cooling pipes installed in the accommodating cavity. One end of the hollow cavity is provided with an opening communicating with the accommodating cavity, and at least a portion of the cooling pipes extend into the hollow cavity through the opening.

2. The cooling device for a three-roll mill according to claim 1, characterized in that, The cooling assembly includes an inlet, an outlet, and an overflow outlet that communicate with the accommodating cavity. The inlet is connected to a plurality of cooling pipes to deliver coolant into the cooling pipes. The overflow outlet is higher than the liquid outlet.

3. The cooling device for a three-roll mill according to claim 2, characterized in that, The cooling assembly also includes a connector, which includes an inlet and several outlets. The inlet is connected to the liquid inlet, and the outlets are connected to several cooling pipes.

4. The cooling device for a three-roll mill according to claim 3, characterized in that, The cooling pipe includes a first port and a second port arranged opposite to each other. The first port is connected to the output port, and the second port is connected to the hollow cavity.

5. The cooling device for a three-roll mill according to claim 1, characterized in that, The cooling pipe is coaxially arranged with the hollow cavity, and the ratio of the length of the cooling pipe to the length of the hollow cavity in the axial direction is 0.75-0.

9.

6. The cooling device for a three-roll mill according to claim 2, characterized in that, The accommodating cavity includes a side wall and a bottom wall, the side wall is inclined, and the liquid outlet is located on the bottom wall.

7. The cooling device for a three-roll mill according to claim 1, characterized in that, The three-roll mill cooling device also includes a connecting pipe for connecting to the rotating shaft, and the rotating shaft is rotatable relative to the connecting pipe. The hollow cavity is formed on the connecting pipe and the rotating shaft.

8. The cooling device for a three-roll mill according to claim 7, characterized in that, The three-roll mill cooling device further includes a gear assembly disposed between the cooling component and the roller assembly. The gear assembly includes a plurality of gears, and at least some of the gears are sleeved on the outside of the hollow cavity.

9. The cooling device for a three-roll mill according to claim 8, characterized in that, The three-roll mill cooling device also includes a bearing assembly disposed between the cooling component and the roller assembly, the bearing assembly being sleeved on the outside of the rotating shaft.

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