Multi-stage cooling flow guide structure of tensioning bearing of cold rolling mill
By adopting a dual-stage cooling structure and alternating filtration method on the cold rolling mill, the problems of low cooling efficiency and impurity blockage in the tension bearing of the cold rolling mill were solved, achieving a high-efficiency and continuous cooling effect.
Patent Information
- Application Number
- CN202520678914.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-04-11
AI Technical Summary
The existing cold rolling mill tension bearings have low cooling efficiency and are prone to clogging of the return pipes by impurities, which prevents the cooling process from proceeding normally.
The system employs a dual-stage cooling structure combined with alternating filtration. The tension bearing is cooled both internally and externally through primary and secondary cooling pipes, and impurities are filtered out using a reflux filter assembly to ensure smooth circulation of the coolant.
This achieves efficient cooling of the tension bearing, avoids blockage by impurities, and ensures continuous and efficient cooling.
Smart Images
Figure CN223794513U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cooling technology for tension bearings in cold rolling mills for aluminum foil processing, and in particular to a multi-stage cooling guide structure for tension bearings in cold rolling mills. Background Technology
[0002] In the aluminum foil processing process, in order to make the aluminum foil thickness meet the corresponding usage requirements, a cold rolling mill is required to stretch the aluminum foil. When stretching the aluminum foil on the cold rolling mill, a tensioning roller is used to tension the aluminum foil strip. As the aluminum foil stretching process continues, a lot of heat will be generated at the tensioning bearing at the end of the tensioning roller. In order to prevent the tensioning bearing from being damaged due to excessive heat accumulation, the tensioning bearing needs to be cooled down in time.
[0003] Currently, when cooling the tension bearing on a cold rolling mill for aluminum foil processing, the main method is to pre-install an inlet pipe and an outlet pipe on the bearing housing of the tension bearing. Then, the inlet pipe and the outlet pipe are connected to an external coolant circulation pipe so that the tension bearing can be cooled when the coolant flows through the tension bearing in the bearing housing.
[0004] While existing cooling structures can cool the tension bearings on cold rolling mills for aluminum foil processing, they primarily employ a single-stage circulation cooling method, resulting in insignificant cooling efficiency. Furthermore, as the coolant flows back through the tension bearing, it carries impurities such as metal shavings generated during operation. As the cooling process continues, these impurities accumulate in the return pipes, causing blockages and hindering the proper cooling process. Summary of the Invention
[0005] To address the shortcomings of existing technologies, the purpose of this application is to provide a multi-stage cooling guide structure for tension bearings that employs a two-stage cooling structure for efficient cooling of tension bearings, while using alternating filtration to prevent impurities in the return coolant from clogging the return pipe, thus ensuring the efficient cooling process of the tension bearings in cold rolling mills for aluminum foil processing.
[0006] The above-mentioned objective of this application is achieved through the following technical solution:
[0007] A multi-stage cooling guide structure for a cold rolling mill tension bearing includes a mill tension frame, a tension roll mounted on the tension frame, a bearing housing mounted on the tension frame at each contact point with the tension roll, a tension bearing mounted at the connection point between the bearing housing and the tension roll, and a cooling mechanism mounted on the mill tension frame at the tension bearing location. The cooling mechanism includes a primary cooling pipe, a secondary cooling pipe, an inlet pipe, an outlet pipe, a reflux filter assembly, a delivery pipe, a return pipe, a filling pipe, a circulating pump, and a coolant tank. The coolant tank is installed on the mill tensioner below the bearing housing. The circulating pump is installed on one side of the top of the coolant tank. The filling pipe is installed on the other side of the top of the coolant tank. The primary cooling pipe is installed on the upper outer part of the bearing housing. The secondary cooling pipe is installed on the inner side of the bearing housing. The inlet pipe is installed on one side of the bottom of the bearing housing. The outlet pipe is installed on the other side of the bottom of the bearing housing. The reflux filter assembly is installed below the outlet pipe. The reflux pipe is installed at the outlet of the reflux filter assembly.
[0008] Optionally, the outlet of the circulating pump is connected to the inlet of the primary cooling pipe via a pipe, and the outlet of the primary cooling pipe is connected to the inlet pipe via a pipe.
[0009] Optionally, the primary cooling pipe has a semi-circular structure and is inserted into the bearing housing.
[0010] Optionally, the secondary cooling pipe is a ring pipe structure, the liquid inlet of the secondary cooling pipe is connected to the liquid inlet pipe through a pipe, and nozzles are evenly distributed on the side wall of the secondary cooling pipe facing the tension bearing.
[0011] Optionally, the bottom end of the return pipe is inserted into the coolant tank, and the top end of the return pipe is inserted into the return filter assembly.
[0012] Optionally, the reflux filtration assembly includes a three-way pipe, a dual-chamber filter box, and a filter screen, wherein the three-way pipe is connected to the bottom end of the liquid outlet pipe, the dual-chamber filter box is installed at the bottom end of the three-way pipe, and the filter screen is installed in the filter chamber inside the dual-chamber filter box.
[0013] Optionally, each branch pipe connecting the three-way pipe to each filter chamber in the dual-chamber filter box is equipped with a valve.
[0014] Optionally, the filter screen plate is slidably engaged with the corresponding filter chamber in the dual-chamber filter box, and the engagement part between the filter screen plate and the dual-chamber filter box is equipped with a sealing strip.
[0015] Optionally, a Y-shaped channel communicating with the return pipe is reserved in the lower part of the dual-chamber filter box.
[0016] In summary, this application includes at least one of the following beneficial technical effects:
[0017] This invention relates to a cooling mechanism installed at the tension bearing of a cold rolling mill for aluminum foil processing. This mechanism consists of a primary cooling pipe, a secondary cooling pipe, an inlet pipe, an outlet pipe, a reflux filter assembly, a delivery pipe, a return pipe, a filling pipe, a circulating pump, and a coolant tank. This multi-stage cooling system allows for rapid cooling of the tension bearing through dual internal and external cooling, improving its cooling efficiency. Simultaneously, the reflux filter assembly filters the returning coolant, effectively preventing impurities from clogging the reflux pipe and ensuring efficient cooling of the tension bearing at the cold rolling mill. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure provided in the embodiments of this application;
[0019] Figure 2 This is provided by the embodiments of this application. Figure 1 Enlarged view of point A in the middle;
[0020] Figure 3 This is a front view of the secondary cooling pipe provided in the embodiment of this application;
[0021] Figure 4 This is a front cross-sectional view of the reflux filter assembly provided in the embodiments of this application.
[0022] Explanation of reference numerals in the attached drawings: 1. Tensioning roller; 2. Mill tensioning frame; 3. Bearing housing; 4. Tensioning bearing; 5. Cooling mechanism; 51. Primary cooling pipe; 52. Secondary cooling pipe; 53. Liquid inlet pipe; 54. Liquid outlet pipe; 55. Return filter assembly; 551. T-junction pipe; 552. Dual-chamber filter box; 553. Filter screen; 56. Liquid delivery pipe; 57. Return pipe; 58. Circulating pump; 59. Liquid filling pipe; 510. Coolant tank. Detailed Implementation
[0023] The present application will be further described in detail below with reference to the accompanying drawings.
[0024] To better understand the technical solutions presented in the embodiments of this application, the cooling principle of the tension bearing in the existing cold rolling mill for aluminum foil processing will first be introduced.
[0025] Currently, when cooling the tension bearing on a cold rolling mill for aluminum foil processing, the main method is to pre-install an inlet pipe and an outlet pipe on the bearing housing of the tension bearing. Then, the inlet pipe and the outlet pipe are connected to an external coolant circulation pipe so that the tension bearing can be cooled when the coolant flows through the tension bearing in the bearing housing.
[0026] Please see Figures 1-3 This application discloses a multi-stage cooling guide structure for a cold rolling mill tension bearing, comprising a mill tension frame 2, a tension roll 1 mounted on the mill tension frame 2, a bearing seat 3 mounted on the mill tension frame 2 at each contact point with the tension roll 1, a tension bearing 4 mounted at the connection point between the bearing seat 3 and the tension roll 1, and a cooling mechanism 5 mounted on the mill tension frame 2 at the tension bearing 4. The cooling mechanism 5 includes a primary cooling pipe 51, a secondary cooling pipe 52, an inlet pipe 53, an outlet pipe 54, a reflux filter assembly 55, a delivery pipe 56, a return pipe 57, a filling pipe 59, and a circulating pump 5. 8 and coolant tank 510, wherein coolant tank 510 is installed on the mill tension frame 2 located below bearing housing 3, circulating pump 58 is installed on one side of the top of coolant tank 510, liquid filling pipe 59 is installed on the other side of the top of coolant tank 510, primary cooling pipe 51 is installed on the upper part of the outer shell of bearing housing 3, secondary cooling pipe 52 is installed on the inner side of bearing housing 3, liquid inlet pipe 53 is installed on one side of the bottom of bearing housing 3, liquid outlet pipe 54 is installed on the other side of the bottom of bearing housing 3, reflux filter assembly 55 is installed below liquid outlet pipe 54, and reflux pipe 57 is installed at the liquid outlet of reflux filter assembly 55.
[0027] Specifically, when cooling the tension bearing 4 in the cold rolling mill for aluminum foil processing, the coolant in the coolant tank 510 is first pumped to the primary cooling pipe 51 by the circulating pump 58. This allows the coolant to flow at a high flow rate over the outside of the bearing housing 3, absorbing the heat transferred from the tension bearing 4 to the bearing housing 3, thus achieving initial cooling of the tension bearing 4. After the coolant flowing out of the primary cooling pipe 51 enters the secondary cooling pipe 52 through the inlet pipe 53, it is sprayed onto the outside of the tension bearing 4 in a multi-directional spray pattern. After absorbing the heat from the tension bearing 4, the coolant concentrates and falls to the bottom of the bearing housing 3, and is discharged into the return filter assembly 55 through the outlet pipe 54. After being filtered in the return filter assembly 55, the coolant finally enters the coolant tank 510 through the return pipe 57 for reuse. This two-stage cooling method efficiently cools the tension bearing 4 in the cold rolling mill for aluminum foil processing.
[0028] Please see Figures 1-2 The outlet of the circulating pump 58 is connected to the inlet of the primary cooling pipe 51 through a pipe, and the outlet of the primary cooling pipe 51 is connected to the inlet pipe 53 through a pipe.
[0029] As one implementation method, the circulating pump 58 is mainly used to transport the coolant in the coolant tank 510 to the primary cooling pipe 51.
[0030] Please see Figures 1-2 The primary cooling pipe 51 has a semi-circular structure and is inserted into the bearing housing 3.
[0031] As one implementation method, when the coolant flows through the primary cooling pipe 51, it will initially absorb the heat conducted from the tension bearing 4 to the bearing housing 3, thereby achieving initial cooling of the tension bearing 4.
[0032] Please see Figures 1-3 The secondary cooling pipe 52 is a ring pipe structure. The liquid inlet of the secondary cooling pipe 52 is connected to the liquid inlet pipe 53 through a pipe. Spray nozzles are evenly distributed on the side wall of the secondary cooling pipe 52 facing the tension bearing 4.
[0033] In one implementation method, the coolant entering the secondary cooling pipe 52 is sprayed onto the outside of the tension bearing 4 in a multi-directional spray manner, which can achieve contact between the coolant and the tension bearing 4 in a multi-directional spray manner, thereby achieving efficient cooling of the tension bearing 4.
[0034] Please see Figure 1 The bottom end of the return pipe 57 is inserted into the coolant tank 510, and the top end of the return pipe 57 is inserted into the return filter assembly 55.
[0035] In one implementation, the return pipe 57 is mainly used to return the cooled coolant back to the coolant tank 510.
[0036] Please see Figure 4 The reflux filtration assembly 55 includes a three-way pipe 551, a dual-chamber filter box 552, and a filter screen 553. The three-way pipe 551 is connected to the bottom end of the liquid outlet pipe 54, the dual-chamber filter box 552 is installed at the bottom end of the three-way pipe 551, and the filter screen 553 is installed in the filter chamber inside the dual-chamber filter box 552.
[0037] In one implementation, when filtering the returned coolant, only one filter chamber and filter screen 553 in the dual-chamber filter box 552 are in use. This design allows the corresponding filter chamber in the dual-chamber filter box 552 to be closed when a large amount of impurities accumulate on one filter screen 553, while the filter screen 553 in the other filter chamber of the dual-chamber filter box 552 is put into use. This ensures the continuous flow of coolant and avoids the problem of interruption of coolant return due to cleaning impurities.
[0038] Please see Figure 1 and Figure 4Each branch pipe connecting the three-way pipe 551 to each filter chamber in the dual-chamber filter box 552 is equipped with a valve.
[0039] In one implementation, the valve on the three-way pipe 551 can control the opening and closing of the three-way pipe 551 and the corresponding filter chamber in the dual-chamber filter box 552, thereby controlling the return path of the return coolant in the dual-chamber filter box 552.
[0040] Please see Figure 1 and Figure 4 The filter screen 553 slides in conjunction with the corresponding filter chamber in the dual-chamber filter box 552, and the mating part of the filter screen 553 and the dual-chamber filter box 552 has a sealing strip.
[0041] In one implementation, the filter screen 553 is the main component for filtering the coolant in the gourd, and the design of the sealing strip can ensure the sealing performance between the filter screen 553 and the dual-chamber filter box 552.
[0042] Please see Figure 4 The lower part of the dual-chamber filter box 552 has a Y-shaped channel that connects to the return pipe 57.
[0043] As one implementation method, the Y-shaped channel design allows the coolant in the dual-chamber filter box 552 to smoothly enter the return pipe 57.
[0044] The specific working principle is as follows: When cooling the tension bearing 4 in the cold rolling mill for aluminum foil processing, the coolant in the coolant tank 510 is first pumped to the primary cooling pipe 51 by the circulating pump 58. This allows the coolant to flow through the outside of the bearing housing 3 at a high flow rate, absorbing the heat transferred from the tension bearing 4 to the bearing housing 3, thus achieving initial cooling of the tension bearing 4. After the coolant flowing out of the primary cooling pipe 51 enters the secondary cooling pipe 52 through the inlet pipe 53, it is sprayed onto the outside of the tension bearing 4 in a multi-directional spray pattern. After absorbing the heat from the tension bearing 4, the coolant concentrates and falls to the bottom of the bearing housing 3, and is discharged into the three-way pipe 551 in the return filter assembly 55 through the outlet pipe 54. The coolant entering the three-way pipe 551 is filtered when it flows through the filter screen 553 of the dual-chamber filter box 552. After being filtered in the return filter assembly 55, the coolant finally enters the coolant tank 510 through the return pipe 57 for reuse. This achieves efficient cooling of the tension bearing 4 in the cold rolling mill for aluminum foil processing through a two-stage cooling method. Since this multi-stage cooling guide structure rapidly cools the tension bearing 4 through internal and external dual cooling, the cooling efficiency of the tension bearing 4 is improved. At the same time, the return filter assembly 55 filters the return coolant, which can effectively prevent impurities in the coolant from clogging the return pipe 57, ensuring the efficient cooling process of the tension bearing 4 in the cold rolling mill for aluminum foil processing.
[0045] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A multi-stage cooling guide structure for a tension bearing of a cold rolling mill, characterized in that: The system includes a mill tensioning frame (2), on which tensioning rollers (1) are mounted. A bearing seat (3) is mounted on the mill tensioning frame (2) at each contact point with the tensioning rollers (1). A tension bearing (4) is mounted at the connection point between the bearing seat (3) and the tensioning rollers (1). A cooling mechanism (5) is mounted on the mill tensioning frame (2) at the tension bearings (4). The cooling mechanism (5) includes a primary cooling pipe (51), a secondary cooling pipe (52), an inlet pipe (53), an outlet pipe (54), a reflux filter assembly (55), a delivery pipe (56), a return pipe (57), a filling pipe (59), a circulating pump (58), and a coolant tank (510). The coolant tank (510)... 0) Installed on the mill tensioning frame (2) below the bearing housing (3), the circulating pump (58) is installed on one side of the top of the coolant tank (510), the liquid adding pipe (59) is installed on the other side of the top of the coolant tank (510), the primary cooling pipe (51) is installed on the upper part of the outer shell of the bearing housing (3), the secondary cooling pipe (52) is installed on the inner side of the bearing housing (3), the liquid inlet pipe (53) is installed on one side of the bottom of the bearing housing (3), the liquid outlet pipe (54) is installed on the other side of the bottom of the bearing housing (3), the reflux filter assembly (55) is installed below the liquid outlet pipe (54), and the reflux pipe (57) is installed at the liquid outlet of the reflux filter assembly (55).
2. The multi-stage cooling guide structure for a cold rolling mill tension bearing according to claim 1, characterized in that: The outlet of the circulating pump (58) is connected to the inlet of the primary cooling pipe (51) through a pipe, and the outlet of the primary cooling pipe (51) is connected to the inlet pipe (53) through a pipe.
3. The multi-stage cooling guide structure for a cold rolling mill tension bearing according to claim 1, characterized in that: The primary cooling pipe (51) has a semi-circular structure and is inserted into the bearing housing (3).
4. The multi-stage cooling guide structure for a cold rolling mill tension bearing according to claim 1, characterized in that: The secondary cooling pipe (52) is a ring pipe structure. The liquid inlet of the secondary cooling pipe (52) is connected to the liquid inlet pipe (53) through a pipe. Spray nozzles are evenly distributed on the side wall of the secondary cooling pipe (52) facing the tension bearing (4).
5. The multi-stage cooling guide structure for a cold rolling mill tension bearing according to claim 1, characterized in that: The bottom end of the return pipe (57) is inserted into the coolant tank (510), and the top end of the return pipe (57) is inserted into the return filter assembly (55).
6. The multi-stage cooling guide structure for a cold rolling mill tension bearing according to claim 1, characterized in that: The reflux filtration assembly (55) includes a three-way pipe (551), a dual-chamber filter box (552), and a filter screen (553). The three-way pipe (551) is connected to the bottom end of the liquid outlet pipe (54), the dual-chamber filter box (552) is installed at the bottom end of the three-way pipe (551), and the filter screen (553) is installed in the filter chamber inside the dual-chamber filter box (552).
7. The multi-stage cooling guide structure for a cold rolling mill tension bearing according to claim 6, characterized in that: Each branch pipe connecting the three-way pipe (551) to each filter chamber in the dual-chamber filter box (552) is equipped with a valve.
8. The multi-stage cooling guide structure for a cold rolling mill tension bearing according to claim 6, characterized in that: The filter screen plate (553) slides in conjunction with the corresponding filter chamber in the dual-chamber filter box (552), and the mating part of the filter screen plate (553) and the dual-chamber filter box (552) has a sealing strip.
9. A multi-stage cooling guide structure for a cold rolling mill tension bearing according to claim 6, characterized in that: The lower part of the dual-chamber filter box (552) has a Y-shaped channel that communicates with the return pipe (57).