Oil return pipeline of rolling mill speed reducer

Abstract

The utility model relates to the technical field of oil return pipelines of speed reducers, in particular to an oil return pipeline of a speed reducer of a rolling mill, which comprises a speed reducer body, an oil inlet pipe and an oil return pipe body. An oil box is fixedly connected to the end, away from the speed reducer body, of the oil return pipe body, an oil outlet pipe is fixedly connected to the inner side of the right end of the oil box, and a sealing cover body is spirally connected to the inner side of the upper end of the oil box. The first electric telescopic rod is started, the first electric telescopic rod drives the magnetic grid plate to move up and down, so that metal chippings in the lubricating oil are effectively adsorbed, meanwhile, the metal chippings in the lubricating oil are intercepted by the filter screen, pollution to crude oil caused by the fact that the metal chippings flow back into an oil tank along with the lubricating oil is effectively reduced, and the quality of the crude oil is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of the oil return pipeline of a speed reducer, in particular to an oil return pipeline of a rolling mill speed reducer. Background Technique

[0002] In the metallurgical rolling industry, rolling mill speed reducers are widely used. In order to ensure the normal operation of the speed reducer device, generally large speed reducers are equipped with a thin oil lubrication device for lubrication, reducing the wear of each friction bearing, and extending the service life of the gears and bearings of the speed reducer. The thin oil lubrication device includes an oil tank, an oil outlet and an oil return pipeline. The lubricating oil flows out through the oil outlet, enters the speed reducer to lubricate the gears and bearings, and then during the lubrication process, the lubricating oil in the speed reducer will flow back into the oil tank through the oil return pipeline to form a cycle.

[0003] When the existing oil return pipeline of the speed reducer is in use, the lubricating oil enters the speed reducer to lubricate the gears and bearings. However, when the gears and bearings rotate, they will rub against each other, generating metal debris that flows into the oil return pipeline along with the lubricating oil and finally flows back into the oil tank. At this time, the metal debris carried in the returned lubricating oil will contaminate the original oil in the oil tank, resulting in a reduction in the quality of the lubricating oil in the oil tank. Therefore, in view of the above problems, we propose an oil return pipeline of a rolling mill speed reducer. Content of the Utility Model

[0004] The purpose of the utility model is to provide an oil return pipeline of a rolling mill speed reducer to solve the problem that when the gears and bearings rotate, they will rub against each other, generating metal debris that flows into the oil return pipeline along with the lubricating oil and finally flows back into the oil tank. At this time, the metal debris carried in the returned lubricating oil will contaminate the original oil in the oil tank, resulting in a reduction in the quality of the lubricating oil in the oil tank.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An oil return pipeline for a rolling mill speed reducer, comprising a speed reducer body, an inlet pipe and a return pipe body. The right end of the speed reducer body is fixedly connected to the inlet pipe, and the right end of the speed reducer body is fixedly connected to the return pipe body. One end of the return pipe body far from the speed reducer body is fixedly connected to an oil box. The inner side of the right end of the oil box is fixedly connected to an outlet pipe. The upper inner side of the oil box is spirally connected with a sealing cover body. The lower end of the sealing cover body is fixedly connected to a first electric telescopic rod. The lower end of the first electric telescopic rod is fixedly connected to a magnetic grating plate. The right end of the magnetic grating plate is fixedly connected to a brush. A partition component is fixedly connected inside the oil box. The inner side of the lower end of the partition component is fixedly connected to a first discharge pipe. The inner wall of the right end of the oil box is fixedly connected to a filter screen. The inner wall of the left end of the oil box is fixedly connected to a second electric telescopic rod. The inner wall of the bottom end of the oil box is fixedly connected to a baffle. The right end of the second electric telescopic rod is fixedly connected to a push plate. The right lower end of the push plate is fixedly connected to a scraping plate. The inner side of the bottom end of the oil box is fixedly connected to a second discharge pipe.

[0007] Preferably, the inlet pipe is located above the return pipe body. The inside of the oil box is hollow. The left end of the outlet pipe is fixedly connected to a filter screen.

[0008] Preferably, the upper end of the sealing cover body is fixedly connected to a handle. The shape of the handle is "T". The number of the first electric telescopic rods is two.

[0009] Preferably, the shape of the magnetic grating plate is rectangular. The brush is located inside the oil box. The shape of the partition component is "V".

[0010] Preferably, the partition component is located below the magnetic grating plate. The magnetic grating plate is located inside the oil box. The partition component is located inside the oil box.

[0011] Preferably, the filter screen is located above the partition component. The second electric telescopic rod is located below the partition component. The right upper end of the baffle is fixedly connected to the partition component.

[0012] Preferably, the shape of the baffle is rectangular. The right end of the second electric telescopic rod passes through the baffle. The left end of the push plate is in contact with the right end surface of the baffle.

[0013] Preferably, the lower end of the push plate is slidably connected to the oil box. The cross-sectional shape of the scraping plate is triangular. The second discharge pipe is located at the right end of the baffle.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] In the present utility model, by providing an oil box, a first electric telescopic rod, a magnetic grid plate and a filter screen, when the lubricating oil flows back into the oil box through the main body of the return oil pipe, the first electric telescopic rod is started, and the first electric telescopic rod drives the magnetic grid plate to move up and down, thereby effectively adsorbing the metal debris in the lubricating oil. At the same time, the filter screen intercepts the metal debris in the lubricating oil, thereby effectively reducing the pollution of the crude oil caused by the metal debris flowing back into the fuel tank along with the lubricating oil, improving the quality of the crude oil. By providing a partition assembly, a first discharge pipe, a second electric telescopic rod, a baffle plate, a push plate and a scraper, the electric valve in the first discharge pipe is opened, and the lubricating oil flows into the bottom of the oil box. After standing, some of the metal debris in the lubricating oil precipitates to the bottom. When there is a large amount of precipitated metal debris, the electric valve in the first discharge pipe is closed, the electric valve in the second discharge pipe is opened, and at the same time the second electric telescopic rod is started. The second electric telescopic rod drives the push plate and the scraper to move, thereby effectively pushing out the precipitated metal debris from the oil box. This device can quickly clean the metal impurities in the oil box, facilitating subsequent use, and at the same time reducing the metal impurities carried inside during the return flow of the lubricating oil again, improving the quality of the crude oil and reducing pollution. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 is a schematic diagram of the sectional structure of the sealing cover of the present utility model;

[0018] Figure 3 is of the present utility model Figure 2 schematic diagram of the structure at A;

[0019] Figure 4 is a schematic diagram of the first electric telescopic rod of the present utility model;

[0020] Figure 5 is a schematic diagram of the sectional structure of the oil box of the present utility model;

[0021] Figure 6 is of the present utility model Figure 5 schematic diagram of the structure at B;

[0022] Figure 7 is a schematic diagram of the filter screen of the present utility model;

[0023] Figure 8 is a schematic diagram of the exploded structure of the partition assembly of the present utility model;

[0024] Figure 9 is a schematic diagram of the push plate of the present utility model;

[0025] Figure 10 is a schematic diagram of the second discharge pipe of the present utility model.

[0026] In the figure: 1. Reducer body; 2. Inlet oil pipe; 3. Return oil pipe body; 4. Oil box; 5. Outlet oil pipe; 6. Sealing cover body; 7. First electric telescopic rod; 8. Magnetic grating plate; 9. Brush; 10. Partition component; 11. First discharge pipe; 12. Filter screen; 13. Second electric telescopic rod; 14. Baffle; 15. Push plate; 16. Scraper; 17. Second discharge pipe. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1-10 , the present invention provides a technical solution:

[0029] An oil return pipeline for a rolling mill reducer includes a reducer body 1, an inlet oil pipe 2, and a return oil pipe body 3. The right end of the reducer body 1 is fixedly connected to the inlet oil pipe 2, the right end of the reducer body 1 is fixedly connected to the return oil pipe body 3, one end of the return oil pipe body 3 far from the reducer body 1 is fixedly connected to an oil box 4, the inner side of the right end of the oil box 4 is fixedly connected to an outlet oil pipe 5, the upper inner side of the oil box 4 is screwed with a sealing cover body 6, the lower end of the sealing cover body 6 is fixedly connected to a first electric telescopic rod 7, the lower end of the first electric telescopic rod 7 is fixedly connected to a magnetic grating plate 8, the right end of the magnetic grating plate 8 is fixedly connected to a brush 9, a partition component 10 is fixedly connected inside the oil box 4, the inner side of the lower end of the partition component 10 is fixedly connected to a first discharge pipe 11, the inner wall of the right end of the oil box 4 is fixedly connected to a filter screen 12, the inner wall of the left end of the oil box 4 is fixedly connected to a second electric telescopic rod 13, the inner wall of the bottom end of the oil box 4 is fixedly connected to a baffle 14, the right end of the second electric telescopic rod 13 is fixedly connected to a push plate 15, the lower right end of the push plate 15 is fixedly connected to a scraper 16, and the inner side of the bottom end of the oil box 4 is fixedly connected to a second discharge pipe 17.

[0030] The inlet oil pipe 2 is located at the upper end of the oil return pipe body 3. The inside of the oil box 4 is hollow. The left end of the outlet oil pipe 5 is fixedly connected with a filter screen 12. The upper end of the sealing cover body 6 is fixedly connected with a handle, and the shape of the handle is "T". The number of the first electric telescopic rods 7 is two. The shape of the magnetic grid plate 8 is rectangular. The brush 9 is located inside the oil box 4. The shape of the partition assembly 10 is "V". The partition assembly 10 is located below the magnetic grid plate 8. The magnetic grid plate 8 is located inside the oil box 4. The partition assembly 10 is located inside the oil box 4. The filter screen 12 is located above the partition assembly 10. The second electric telescopic rod 13 is located below the partition assembly 10. The right upper end of the baffle 14 is fixedly connected with the partition assembly 10. The shape of the baffle 14 is rectangular. The right end of the second electric telescopic rod 13 passes through the baffle 14. The left end of the push plate 15 is in contact with the right end surface of the baffle 14. The lower end of the push plate 15 is slidably connected with the oil box 4. The cross-sectional shape of the scraping plate 16 is triangular. The second discharge pipe 17 is located at the right end of the baffle 14. The right end of the reducer body 1 is fixedly connected with the inlet oil pipe 2. The right end of the reducer body 1 is fixedly connected with the oil return pipe body 3. The end of the oil return pipe body 3 far away from the reducer body 1 is fixedly connected with the oil box 4, which is convenient for setting the oil box 4, the first electric telescopic rod 7, the magnetic grid plate 8 and the filter screen 12. When the lubricating oil flows back into the oil box 4 through the oil return pipe body 3, start the first electric telescopic rod 7, and the first electric telescopic rod 7 drives the magnetic grid plate 8 to move up and down, so as to effectively adsorb the metal debris in the lubricating oil. At the same time, the filter screen 12 intercepts the metal debris in the lubricating oil, thereby effectively reducing the pollution of the crude oil caused by the metal debris flowing back into the fuel tank with the lubricating oil and improving the quality of the crude oil; The right inner side of the oil box 4 is fixedly connected with the outlet oil pipe 5. The upper inner side of the oil box 4 is screwed with the sealing cover body 6. The lower end of the sealing cover body 6 is fixedly connected with the first electric telescopic rod 7. The lower end of the first electric telescopic rod 7 is fixedly connected with the magnetic grid plate 8. The right end of the magnetic grid plate 8 is fixedly connected with the brush 9. The partition assembly 10 is fixedly connected inside the oil box 4, which is convenient for setting the partition assembly 10, the first discharge pipe 11, the second electric telescopic rod 13, the baffle 14, the push plate 15 and the scraping plate 16. Open the electric valve in the first discharge pipe 11, and the lubricating oil flows into the bottom of the oil box 4. After standing, some of the metal debris in the lubricating oil precipitates to the bottom. When there is more precipitated metal debris, close the electric valve in the first discharge pipe 11, open the electric valve in the second discharge pipe 17, and at the same time start the second electric telescopic rod 13. The second electric telescopic rod 13 drives the push plate 15 and the scraping plate 16 to move, so as to effectively push out the precipitated metal debris from the oil box 4. The device can quickly clean the metal impurities in the oil box 4, which is convenient for subsequent use. At the same time, it reduces the metal impurities carried inside when the lubricating oil flows back again, improves the quality of the crude oil and reduces the pollution;The inner side of the lower end of the partition assembly 10 is fixedly connected with a first discharge pipe 11. The inner wall of the right end of the oil box 4 is fixedly connected with a filter net 12. The inner wall of the left end of the oil box 4 is fixedly connected with a second electric telescopic rod 13. The inner wall of the bottom end of the oil box 4 is fixedly connected with a baffle 14. The right end of the second electric telescopic rod 13 is fixedly connected with a push plate 15. The right lower end of the push plate 15 is fixedly connected with a scraping plate 16. The inner side of the bottom end of the oil box 4 is fixedly connected with a second discharge pipe 17.;

[0031] Workflow: When in use, the device is powered by an external power supply. A fuel inlet pipe 2 is fixedly connected to the right end of the reducer body 1. The crude oil in the fuel tank flows into the reducer body 1 through the fuel inlet pipe 2 to lubricate the gears and rotating shafts in the reducer body 1. A return pipe body 3 is fixedly connected to the right end of the reducer body 1. Then, the lubricating oil in the reducer body 1 will flow back into the fuel tank through the return pipe body 3 to form a cycle. One end of the return pipe body 3 away from the reducer body 1 is fixedly connected to an oil box 4. At this time, the lubricating oil will carry metal debris and flow into the oil box 4. A sealing cover body 6 is spirally connected to the inner side of the upper end of the oil box 4. A handle is fixedly connected to the upper end of the sealing cover body 6. When the magnetic grating plate 8 needs to be cleaned after long-term use, turn the handle to open the sealing cover body 6, so as to take out the magnetic grating plate 8 from the oil box 4 for convenient cleaning. A first electric telescopic rod 7 is fixedly connected to the lower end of the sealing cover body 6. A magnetic grating plate 8 is fixedly connected to the lower end of the first electric telescopic rod 7. An oil outlet pipe 5 is fixedly connected to the inner side of the right end of the oil box 4. A filter screen 12 is fixedly connected to the inner wall of the right end of the oil box 4. The left end of the oil outlet pipe 5 is fixedly connected to the filter screen 12. Start the first electric telescopic rod 7 through an external controller. The first electric telescopic rod 7 drives the magnetic grating plate 8 to move up and down, so as to effectively adsorb the metal debris in the lubricating oil. At the same time, the filter screen 12 intercepts the metal debris in the lubricating oil, thereby effectively reducing the pollution of the crude oil caused by the metal debris flowing back into the fuel tank with the lubricating oil and improving the quality of the crude oil. A brush 9 is fixedly connected to the right end of the magnetic grating plate 8. When the magnetic grating plate 8 moves up and down, the brush 9 can remove the metal debris on the filter screen 12, reducing the blockage of the filter screen 12 caused by long-term use. A partition component 10 is fixedly connected to the inside of the oil box 4. A first discharge pipe 11 is fixedly connected to the inner side of the lower end of the partition component 10. Open the electric valve in the first discharge pipe 11, and the lubricating oil flows into the bottom of the oil box 4. After standing, some of the metal debris in the lubricating oil precipitates to the bottom. A second electric telescopic rod 13 is fixedly connected to the inner wall of the left end of the oil box 4. A baffle 14 is fixedly connected to the inner wall of the bottom end of the oil box 4. The right end of the second electric telescopic rod 13 is fixedly connected to a push plate 15. A scraper 16 is fixedly connected to the lower right end of the push plate 15. A second discharge pipe 17 is fixedly connected to the inner side of the bottom end of the oil box 4. When there is more precipitated metal debris, close the electric valve in the first discharge pipe 11, open the electric valve in the second discharge pipe 17, and at the same time start the second electric telescopic rod 13. The second electric telescopic rod 13 drives the push plate 15 and the scraper 16 to move, so as to effectively push out the precipitated metal debris from the oil box 4. This device can quickly clean the metal impurities in the oil box 4, which is convenient for subsequent use. At the same time, it reduces the metal impurities carried inside when the lubricating oil flows back again, improves the quality of the crude oil, and reduces pollution.

[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A rolling mill reducer oil return pipeline, comprising a reducer body (1), an oil inlet pipe (2) and an oil return pipe body (3), characterized in that: The right end of the reducer body (1) is fixedly connected to an oil inlet pipe (2), the right end of the reducer body (1) is fixedly connected to an oil return pipe body (3), the end of the oil return pipe body (3) away from the reducer body (1) is fixedly connected to an oil box (4), the right end of the oil box (4) is fixedly connected to an oil outlet pipe (5), the upper end of the oil box (4) is spirally connected to a sealing cover (6), the lower end of the sealing cover (6) is fixedly connected to a first electric telescopic rod (7), the lower end of the first electric telescopic rod (7) is fixedly connected to a magnetic grid plate (8), and the right end of the magnetic grid plate (8) is fixedly connected to a brush (9). The oil box (4) is fixedly connected with a partition assembly (10) inside, the lower inner side of the partition assembly (10) is fixedly connected with a first discharge pipe (11), the inner wall of the right end of the oil box (4) is fixedly connected with a filter screen (12), the inner wall of the left end of the oil box (4) is fixedly connected with a second electric telescopic rod (13), the inner wall of the bottom end of the oil box (4) is fixedly connected with a baffle (14), the right end of the second electric telescopic rod (13) is fixedly connected with a push plate (15), the right lower end of the push plate (15) is fixedly connected with a scraper (16), and the inner side of the bottom end of the oil box (4) is fixedly connected with a second discharge pipe (17).

2. The oil return pipeline of a rolling mill reducer according to claim 1, characterized in that: The oil inlet pipe (2) is located at the upper end of the oil return pipe body (3); the oil box (4) is hollow inside; and a filter screen (12) is fixedly connected to the left end of the oil outlet pipe (5).

3. The oil return pipeline of a rolling mill reducer according to claim 1, characterized in that: A handle is fixedly connected to the upper end of the sealing cover body (6), and the handle has a "T" shape. The number of the first electric telescopic rods (7) is two.

4. The oil return pipeline of a rolling mill reducer according to claim 1, characterized in that: The magnetic grid plate (8) has a rectangular shape, the brush (9) is located inside the oil box (4), and the partition assembly (10) has a "V" shape.

5. The oil return pipeline of a rolling mill reducer according to claim 1, characterized in that: The partition assembly (10) is located at the lower end of the magnetic grid plate (8), the magnetic grid plate (8) is located inside the oil box (4), and the partition assembly (10) is located inside the oil box (4).

6. The oil return pipeline of a rolling mill reducer according to claim 1, characterized in that: The filter screen (12) is located at the upper end of the partition assembly (10), the second electric telescopic rod (13) is located at the lower end of the partition assembly (10), and the baffle (14) is fixedly connected to the partition assembly (10) at its upper right end.

7. The rolling mill reducer oil return pipeline according to claim 1, characterized in that: The baffle (14) has a rectangular shape, the right end of the second electric telescopic rod (13) passes through the baffle (14), and the left end of the push plate (15) is in contact with the right end surface of the baffle (14).

8. The oil return pipeline of a rolling mill reducer according to claim 1, characterized in that: The lower end of the push plate (15) is slidably connected to an oil box (4); the cross-sectional shape of the scraper (16) is triangular; and the second discharge pipe (17) is located at the right end of the baffle (14).

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