Thin oil circulating lubricating and cooling device for reduction gearbox of metallurgical rolling mill

Abstract

The utility model discloses a thin oil circulating lubricating and cooling device for a metallurgical rolling mill reduction gearbox, which comprises a reduction gearbox main body, and a circulating cooling mechanism used for circularly using lubricating thin oil in the reduction gearbox is arranged on the reduction gearbox main body. The circulating cooling mechanism comprises a seamless steel tube I, a horizontal gear pump, a seamless steel tube II, an integrated quantitative distributor and a seamless steel tube III. By installing the quantitative distributor, as lubricating thin oil is pumped by the horizontal gear pump and conveyed to the integrated quantitative distributor through the second seamless steel pipe, the integrated quantitative distributor can convey the lubricating thin oil to all lubricating points in the reduction gearbox body through the third seamless steel pipes, and precise lubricating and cooling are achieved; through accurate adjustment of the bearing flow adjusting valve and the gear flow adjusting valve and real-time monitoring of the gear flow detection window and the bearing flow detection window, an operator can visually know and adjust the running state of the lubricating system, and the reliability and efficiency of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, specifically to a thin oil circulating lubrication and cooling device for a metallurgical rolling mill gearbox. Background Technology

[0002] A metallurgical rolling mill is a piece of equipment used for processing metal materials. It is mainly used to process metal billets into finished materials of different shapes and sizes through rolling processes. It is widely used in metallurgical industry, construction industry, automotive industry and other fields.

[0003] The gearbox in a metallurgical rolling mill is a key component of the mill's transmission system. Its main function is to reduce speed and increase torque, ensuring smooth operation. However, with increasing load and operating time, a significant amount of heat is generated inside the gearbox, primarily from friction and resistance between gears. To ensure the gearbox functions effectively in high-temperature environments, an internal circulation cooling and lubrication system is required. This system uses an oil pump to draw lubricating oil from the bottom of the gearbox, cools it, and then returns it to the inside, forming a closed-loop circulation. During this process, the lubricating oil not only lubricates but also effectively removes heat generated by friction, thereby reducing the internal temperature of the gearbox.

[0004] In the existing thin oil circulating lubrication and cooling device for metallurgical rolling mill gearboxes, users cannot accurately control the distribution of lubricating oil, thus failing to ensure lubrication effect. Furthermore, lubricating oil may leak during circulation, wasting lubricating oil and potentially causing equipment malfunctions. Utility Model Content

[0005] The purpose of this invention is to provide a thin oil circulating lubrication and cooling device for a metallurgical rolling mill gearbox, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A thin oil circulating lubrication and cooling device for a metallurgical rolling mill gearbox includes a gearbox body, on which a circulating cooling mechanism for circulating the thin lubricating oil in the gearbox is provided. The circulating cooling mechanism includes a seamless steel pipe I, a horizontal gear pump, a seamless steel pipe II, an integrated quantitative distributor, and a seamless steel pipe III.

[0008] The gearbox body is equipped with a seamless steel pipe, a horizontal gear pump, a seamless steel pipe, and an integrated metering distributor. One end of the seamless steel pipe is connected to the interior of the gearbox body. The output end of the horizontal gear pump is equipped with two sets of pipe joints, and the other end of the seamless steel pipe is connected to the inlet of the horizontal gear pump through a set of pipe joints. One end of the seamless steel pipe is connected to the outlet of the horizontal gear pump through another set of pipe joints. The integrated metering distributor is equipped with an oil inlet pipe through a pipe joint, and the oil inlet pipe is connected to the other end of the seamless steel pipe through a pipe joint. The oil outlet of the integrated metering distributor is equipped with multiple sets of seamless steel pipes through multiple sets of pipe joints, and the other ends of the multiple sets of seamless steel pipes are distributed to various bearings and gears inside the gearbox body.

[0009] The gearbox body is equipped with a shell that can enclose multiple sets of seamless steel pipes inside the gearbox body.

[0010] Preferably, a ball valve and a filter are respectively installed on the seamless steel pipe.

[0011] Preferably, the seamless steel pipe II is respectively equipped with a pressure testing pipe joint, an oil flow signal indicator, a safety valve and a ball valve II, and a pressure gauge is installed on the pressure testing pipe joint.

[0012] Preferably, the integrated metering dispenser is provided with multiple sets of bearing flow regulating valves and gear flow regulating valves, the integrated metering dispenser is provided with a gear flow detection window, and the housing is provided with multiple sets of bearing flow detection windows.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the installation of an integrated quantitative distributor, first draws lubricating thin oil in the gearbox body through a seamless steel pipe 1 by a horizontal gear pump. The horizontal gear pump pressurizes the lubricating thin oil and then delivers it through a seamless steel pipe 2 to the integrated quantitative distributor. The integrated quantitative distributor distributes the lubricating thin oil to multiple seamless steel pipes 3 according to a preset distribution ratio. The seamless steel pipes 3 deliver the lubricating thin oil to various lubrication points in the gearbox body, achieving precise lubrication and cooling. Through precise adjustment of the bearing flow regulating valve and the gear flow regulating valve, as well as real-time monitoring of the gear flow detection window and the bearing flow detection window, the operator can intuitively understand and adjust the operating status of the lubrication system, improving the reliability and efficiency of the equipment and reducing maintenance costs and production risks.

[0015] 2. This utility model, by installing a housing, allows multiple sets of seamless steel pipes to be enclosed inside the gearbox body, thereby greatly reducing the need for external piping, simplifying the overall system structure, and improving aesthetics. The reduction of external piping means a reduction in the risk of pipe damage caused by external environmental factors (such as mechanical collisions, corrosion, etc.), and also avoids potential damage caused by human error or negligence. Since most of the pipes are arranged inside the housing, even if leakage occurs, the lubricating oil will not flow directly to the outside of the housing, but will be confined inside the housing, reducing the pollution of the lubricating oil to the environment and keeping the exterior of the housing clean and tidy. A small amount of leakage will not have a significant impact on the lubrication effect, because there is enough space inside the housing to accommodate these leaks and ensure that the lubricating oil can continue to effectively lubricate the various components of the gearbox. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the integrated quantitative dispenser structure of this utility model.

[0018] In the diagram: 1. Gearbox body; 2. Ball valve one; 3. Pipe joint one; 4. Seamless steel pipe two; 5. Horizontal gear pump; 6. Pressure testing pipe joint; 7. Pressure gauge; 8. Oil flow signal indicator; 9. Safety valve; 10. Ball valve two; 11. Pipe joint three; 12. Gear flow regulating valve; 13. Pipe joint two; 14. Bearing flow regulating valve; 15. Integrated metering distributor; 16. Pipe joint four; 17. Gear flow detection window; 18. Seamless steel pipe three; 19. Bearing flow detection window; 20. Housing; 21. Filter; 22. Seamless steel pipe one. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-2A thin oil circulating lubrication and cooling device for a metallurgical rolling mill gearbox includes a gearbox body 1. The gearbox body 1 is equipped with a circulating cooling mechanism for circulating the thin lubricating oil within the gearbox. The circulating cooling mechanism includes a seamless steel pipe 22, a horizontal gear pump 5, a seamless steel pipe 4, an integrated metering distributor 15, and a seamless steel pipe 18. The gearbox body 1 is respectively equipped with the seamless steel pipe 22, the horizontal gear pump 5, the seamless steel pipe 4, and the integrated metering distributor 15. One end of the seamless steel pipe 22 is connected to the interior of the gearbox body 1. The output end of the horizontal gear pump 5 is equipped with two sets of pipe joints. 3. The other end of seamless steel pipe 22 is connected to the inlet of horizontal gear pump 5 through a set of pipe fittings 3. One end of seamless steel pipe 4 is connected to the outlet of horizontal gear pump 5 through another set of pipe fittings 3. An oil inlet pipe is installed on the integrated metering distributor 15 through pipe fitting 2 13, and the oil inlet pipe is connected to the other end of seamless steel pipe 4 through pipe fitting 3 11. The oil outlet of the integrated metering distributor 15 is equipped with multiple sets of seamless steel pipes 3 18 through multiple sets of pipe fittings 4 16, and the other ends of the multiple sets of seamless steel pipes 3 18 are distributed to various bearings and gears inside the gearbox body 1. The gearbox body 1 is The core component of the metallurgical rolling mill contains critical transmission components such as bearings and gears, requiring good lubrication and cooling. Seamless steel pipe 22 connects the inside of the gearbox body 1 to the inlet of the horizontal gear pump 5, used to extract lubricating thin oil from the gearbox. The horizontal gear pump 5 is the power source, connected to seamless steel pipe 22 and seamless steel pipe 4 respectively through two sets of pipe joints 3, realizing the extraction and transportation of lubricating thin oil. Seamless steel pipe 4 delivers the lubricating thin oil output from the horizontal gear pump 5 to the integrated metering distributor 15. The integrated metering distributor 15 receives the lubricating thin oil from seamless steel pipe 4 through pipe joint 13, and... As needed, the lubricating oil is distributed to multiple sets of seamless steel pipes 18. The seamless steel pipes 18 deliver the lubricating oil to the bearings and gears in the gearbox body 1 for precise lubrication. The lubricating oil in the gearbox body 1 is first drawn by the horizontal gear pump 5 through the seamless steel pipe 22. The horizontal gear pump 5 pressurizes the lubricating oil and delivers it to the integrated metering distributor 15 through the seamless steel pipe 4. The integrated metering distributor 15 distributes the lubricating oil to multiple sets of seamless steel pipes 18 according to the preset distribution ratio. The seamless steel pipes 18 deliver the lubricating oil to the lubrication points in the gearbox body 1 for precise lubrication and cooling.

[0021] Please see Figure 1 and Figure 2The gearbox body 1 is equipped with a housing 20 that can enclose multiple sets of seamless steel pipes 3 18 inside the gearbox body 1. The design of the housing 20 allows multiple sets of seamless steel pipes 3 18 to be enclosed inside the gearbox body 1, thereby greatly reducing the need for external pipeline layout, simplifying the overall structure of the system, and improving aesthetics. The reduction of external pipelines means reducing the risk of pipeline damage caused by external environmental factors (such as mechanical collisions, corrosion, etc.), and also avoiding potential damage caused by human misoperation or negligence. Since most of the pipelines are arranged inside the housing, even if leakage occurs, the lubricating oil will not flow directly to the outside of the housing, but will be confined inside the housing, reducing the pollution of the lubricating oil to the environment and keeping the outside of the housing clean and tidy. A small amount of leakage will not have a significant impact on the lubrication effect, because there is enough space inside the housing to accommodate these leaks and ensure that the lubricating oil can continue to effectively lubricate the various components of the gearbox.

[0022] Please see Figure 1 and Figure 2 Seamless steel pipe 1 (22) is equipped with ball valve 1 (2) and filter 21. Seamless steel pipe 2 (4) is equipped with pressure testing pipe joint 6, oil flow signal indicator 8, safety valve 9, and ball valve 2 (10). Pressure gauge 7 is installed on pressure testing pipe joint 6. Ball valve 1 (2) is installed on seamless steel pipe 1 (22) to control the flow of fluid. By rotating the handle of the ball valve, the fluid passage can be easily opened or closed, thereby achieving flexible control of the system. Filter 21 is also installed on seamless steel pipe 1 (22) to filter impurities and particles in the fluid. The presence of filter 21 ensures that the fluid remains clean during transportation and prevents impurities from damaging the system. Pressure testing pipe joint 6 is installed on seamless steel pipe 2 (4) to connect pressure gauge 7. Pressure gauge 7 is connected to pressure testing pipe joint 6 to display the flow rate of fluid in the pipeline. The reading of pressure gauge 7 helps operators judge the operating status of the system and promptly detect and handle potential pressure anomalies. Oil flow signal indicator 8 is installed on seamless steel pipe 4 to indicate the flow status of the fluid. When the fluid flows in the pipe, oil flow signal indicator 8 will emit a signal (such as light, sound, etc.) to remind the operator to pay attention to the flow of the fluid. Safety valve 9 is also installed on seamless steel pipe 4 as a safety protection device for the system. When the pressure in the system exceeds the set value, safety valve 9 will automatically open to release the excess pressure, thereby preventing the system from being damaged due to overpressure. Ball valve 10 is used to control the flow of fluid on seamless steel pipe 4. The opening and closing of ball valve 10 can be achieved by rotating its handle, which provides convenience for flexible control of the system.

[0023] Please see Figure 1 and Figure 2The integrated metering distributor 15 is equipped with multiple sets of bearing flow regulating valves 14 and gear flow regulating valves 12. The integrated metering distributor 15 also has a gear flow detection window 17, and the housing 20 has multiple sets of bearing flow detection windows 19. The bearing flow regulating valves 14, mounted on the integrated metering distributor 15, are used to regulate the flow rate of lubricating oil delivered to the bearings. By adjusting the opening of these valves, the lubrication effect of the bearings can be precisely controlled, ensuring their normal operation and extending their service life. The gear flow regulating valves 12 are used to regulate the flow rate of lubricating oil delivered to the gears. Precise control is crucial for maintaining the smoothness and efficiency of gear transmission. The gear flow detection windows 17, located on the integrated metering distributor 15, are used to monitor the flow rate of lubricating oil passing through the gears in real time. The bearing flow detection windows 19, located on the housing 20 and above the bearings, are used to monitor the flow rate of lubricating oil passing through the bearings, ensuring lubrication effectiveness. This allows for centralized, quantitative distribution of lubricating oil flow, and provides intuitive adjustment, improving the reliability and efficiency of the lubrication system.

[0024] Working principle: The lubricating oil in the gearbox body 1 is first drawn by the horizontal gear pump 5 through seamless steel pipe 122. The horizontal gear pump 5 pressurizes the lubricating oil and then delivers it through seamless steel pipe 24 to the integrated metering distributor 15. The integrated metering distributor 15 distributes the lubricating oil to multiple sets of seamless steel pipes 38 according to a preset distribution ratio. The seamless steel pipes 38 deliver the lubricating oil to various lubrication points within the gearbox body 1, achieving precise lubrication and cooling. The bearing flow regulating valve 14 is used to regulate the flow rate of lubricating oil delivered to the bearings, the gear flow regulating valve 12 is used to regulate the flow rate of lubricating oil delivered to the gears, the gear flow detection window 17 is used to monitor the flow rate of lubricating oil passing through the gears in real time, and the bearing flow detection window 19 is used to monitor the flow rate of lubricating oil passing through the bearings, ensuring lubrication effect. This allows the integrated metering distributor 15 to achieve centralized and quantitative distribution of lubricating oil, ensuring that each lubrication point receives an appropriate amount of lubricating oil. Through the precise adjustment of the bearing flow regulating valve 14 and the gear flow regulating valve 12, and the gear flow detection... Real-time monitoring through the measuring window 17 and bearing flow detection window 19 allows operators to intuitively understand and adjust the operating status of the lubrication system, improving equipment reliability and efficiency, and reducing maintenance costs and production risks. The housing 20 allows multiple sets of seamless steel pipes 18 to be enclosed inside the gearbox body 1, greatly reducing the need for external piping, simplifying the overall system structure, and improving aesthetics. The reduction of external piping means a reduction in the risk of pipe damage caused by external environmental factors (such as mechanical collisions, corrosion, etc.), and also avoids potential damage caused by human error or negligence. Since most of the piping is arranged inside the housing, even if leakage occurs, the lubricating oil will not flow directly outside the housing, but will be confined inside the housing, reducing the pollution of the lubricating oil to the environment and keeping the exterior of the housing clean. Small leaks will not significantly affect the lubrication effect, because there is enough space inside the housing to accommodate these leaks and ensure that the lubricating oil can continue to effectively lubricate the various components of the gearbox.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A thin oil circulating lubrication and cooling device for a metallurgical rolling mill gearbox, comprising a gearbox body (1), characterized in that: The gearbox body (1) is provided with a circulating cooling mechanism for circulating the lubricating thin oil in the gearbox. The circulating cooling mechanism includes seamless steel pipe one (22), horizontal gear pump (5), seamless steel pipe two (4), integrated quantitative distributor (15) and seamless steel pipe three (18). The gearbox body (1) is respectively equipped with a seamless steel pipe (22), a horizontal gear pump (5), a seamless steel pipe (4), and an integrated metering dispenser (15). One end of the seamless steel pipe (22) is connected to the interior of the gearbox body (1). The output end of the horizontal gear pump (5) is equipped with two sets of pipe joints (3), and the other end of the seamless steel pipe (22) is connected to the inlet of the horizontal gear pump (5) through a set of pipe joints (3). One end of the seamless steel pipe (4) is connected to another... A set of pipe joints (3) is connected to the outlet of the horizontal gear pump (5). The integrated metering distributor (15) is equipped with an oil inlet pipe through pipe joint (13), and the oil inlet pipe is connected to the other end of the seamless steel pipe (4) through pipe joint (11). The oil outlet of the integrated metering distributor (15) is equipped with multiple sets of seamless steel pipes (18) through multiple sets of pipe joints (16), and the other ends of the multiple sets of seamless steel pipes (18) are distributed to the bearings and gears in the gearbox body (1). The gearbox body (1) is provided with a shell (20) that can enclose multiple sets of seamless steel pipes (18) inside the gearbox body (1).

2. The thin oil circulating lubrication and cooling device for a metallurgical rolling mill gearbox according to claim 1, characterized in that: The seamless steel pipe 1 (22) is respectively equipped with ball valve 1 (2) and filter (21).

3. The thin oil circulating lubrication and cooling device for a metallurgical rolling mill gearbox according to claim 2, characterized in that: The seamless steel pipe 2 (4) is respectively equipped with a pressure testing pipe joint (6), an oil flow signal indicator (8), a safety valve (9) and a ball valve 2 (10), and a pressure gauge (7) is installed on the pressure testing pipe joint (6).

4. The thin oil circulating lubrication and cooling device for a metallurgical rolling mill gearbox according to claim 1, characterized in that: The integrated quantitative distributor (15) is provided with multiple sets of bearing flow regulating valves (14) and gear flow regulating valves (12). The integrated quantitative distributor (15) is provided with a gear flow detection window (17), and the housing (20) is provided with multiple sets of bearing flow detection windows (19).

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