Two-way high-pressure oil device for vertical thrust bearing

Abstract

The two-way high-pressure oil device for the vertical thrust bearing comprises a thrust pad, a second high-pressure oil supply pipeline is arranged on the outer side of the thrust pad, and a second oil inlet is formed in the end, away from the thrust pad, of the second high-pressure oil supply pipeline. The vertical thrust bearing has the beneficial effects that the first high-pressure oil supply pipeline and the second high-pressure oil supply pipeline are respectively mounted on the outer side of the bearing bush on the vertical thrust bearing, the first high-pressure oil supply pipeline and the second high-pressure oil supply pipeline are arranged in parallel, and meanwhile, a first oil outlet in the first high-pressure oil supply pipeline and a second oil outlet in the second high-pressure oil supply pipeline are arranged alternately; according to the vertical thrust bearing, high-pressure oil is provided for each thrust pad, normal oil supply of the other oil supply pipeline to the corresponding thrust pad can be ensured when one oil supply pipeline is blocked, the risk of dry grinding burning loss of the vertical thrust bearing due to blockage of the oil supply pipelines is reduced, and the service life of the vertical thrust bearing is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of high-pressure oil devices, specifically to a double-pass high-pressure oil device for vertical thrust bearings. Background Technology

[0002] Vertical pumps, motors, gearboxes, and other equipment typically employ vertical sliding thrust bearings to withstand axial thrust loads. These bearings are made of Babbitt alloy and lubricated with thin oil. For heavy load applications, the sliding thrust bearing consists of multiple thrust pads, a thrust head, and a high-pressure oil jacking device. Before starting or stopping the equipment, the thrust pads and thrust head must be jacked apart to create a lubricating oil film of at least 0.05 mm to prevent dry friction and burnout of the bearing during startup and shutdown.

[0003] The existing high-pressure oil system pipeline for vertical sliding thrust bearings is a single-channel high-pressure oil circuit, which is a unidirectional series type. During use, high-pressure oil is delivered to each thrust bearing through the single-channel high-pressure oil circuit. Under this oil supply method, if foreign matter blocks or leaks at the first thrust bearing, the entire system will fail, which will cause dry friction and burnout of the vertical sliding thrust bearing, shortening the service life of the vertical thrust bearing. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a dual-channel high-pressure oil device for vertical thrust bearings that adopts parallel channel oil supply to ensure that when one oil supply line is blocked, the other oil supply line can still supply oil normally, thereby avoiding the risk of dry friction and burning of the thrust bearing.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: This utility model proposes a double-channel high-pressure oil device for a vertical thrust bearing, including a thrust bearing. A second high-pressure oil supply pipeline is provided on the outer side of the thrust bearing. An oil inlet is provided at the end of the second high-pressure oil supply pipeline away from the thrust bearing. An oil supply branch pipe is installed on the second high-pressure oil supply pipeline directly opposite the thrust bearing. An oil outlet is provided at the end of the second oil supply branch pipe facing the thrust bearing. A first high-pressure oil supply pipeline is installed on the outer side of the second high-pressure oil supply pipeline. An oil inlet is provided at the end of the first high-pressure oil supply pipeline away from the thrust bearing. Oil supply branch pipes are installed at equal intervals on the side of the second high-pressure oil supply pipeline facing the thrust bearing. An oil outlet is provided at the end of the first oil supply branch pipe facing the corresponding thrust bearing.

[0008] Furthermore, there are no fewer than five thrust bearings, which are arranged in a ring.

[0009] By adopting the above technical solution, the thrust bearing is an essential component for the operation of a vertical thrust bearing.

[0010] Furthermore, the second oil supply branch pipe is internally connected to the second high-pressure oil supply pipeline, and the second oil supply branch pipe is distributed at equal intervals on the second high-pressure oil supply pipeline.

[0011] By adopting the above technical solution, the second oil supply branch pipe is internally connected to the second high-pressure oil supply pipeline, which can ensure that the high-pressure oil in the second high-pressure oil supply pipeline can be conveniently transported to the second oil supply branch pipe.

[0012] Furthermore, each of the two oil supply branches is connected to one of the thrust bearings, and there are no fewer than two oil supply branches.

[0013] By adopting the above technical solution, the second oil supply branch pipe can ensure that the high-pressure oil in the second high-pressure oil supply pipeline can smoothly enter the corresponding thrust bearing.

[0014] Furthermore, a gap is reserved between the second oil outlet and the corresponding thrust bearing.

[0015] By adopting the above technical solution, the existence of the gap can ensure that the high-pressure oil flowing out of the second oil outlet can be smoothly filled into the thrust bearing.

[0016] Furthermore, the first high-pressure oil supply line and the second high-pressure oil supply line are arranged in parallel, and the second oil supply branch line and the first oil supply branch line are distributed alternately.

[0017] By adopting the above technical solution, the second oil supply branch pipe and the first oil supply branch pipe are staggered, which can ensure that the other oil supply pipe can supply oil to the corresponding thrust bearing normally when one oil supply pipe is blocked. This reduces the risk of dry grinding and burning of the vertical thrust bearing due to blockage of the oil supply pipe, and ensures the service life of the vertical thrust bearing.

[0018] Furthermore, each of the oil supply branch pipes is connected to a thrust bearing, and a gap is reserved between the oil outlet and the corresponding thrust bearing.

[0019] By adopting the above technical solution, the existence of the gap can ensure that the high-pressure oil delivered by the oil supply branch pipe can be smoothly filled into the corresponding thrust bearing.

[0020] Furthermore, the first oil supply branch pipe is connected to the first high-pressure oil supply line, and the first oil supply branch pipe is distributed at equal intervals on the first high-pressure oil supply line.

[0021] By adopting the above technical solution, the first oil supply branch pipe can ensure that the high-pressure oil in the first high-pressure oil supply pipeline can smoothly enter the corresponding thrust bearing.

[0022] (3) Beneficial effects

[0023] Compared with the prior art, this utility model has the following advantages:

[0024] To address the problem that existing high-pressure oil systems for vertical sliding thrust bearings use a single-channel, unidirectional series high-pressure oil circuit, which delivers high-pressure oil to each thrust bearing via this single-channel system, the entire system will fail if the first thrust bearing becomes blocked or leaks, leading to dry-grinding and burn-out of the vertical sliding thrust bearing and shortening its service life. This invention addresses this issue by installing two high-pressure oil supply lines, a first and a second, on the outer side of the bearing shell. These lines are connected in parallel, with the oil outlets of the first and second lines alternating. This ensures that even if one supply line becomes blocked, the other supply line can still provide normal oil supply to the corresponding thrust bearing, reducing the risk of dry-grinding and burn-out due to blockage and thus guaranteeing the lifespan of the vertical thrust bearing. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a dual-channel high-pressure oil device for a vertical thrust bearing as described in this utility model;

[0026] Figure 2 This is a schematic diagram of a single-channel high-pressure oil circuit device used in existing vertical thrust bearings.

[0027] The annotations in the attached figures are explained as follows:

[0028] 1. High-pressure oil supply line one; 2. Oil inlet one; 3. Oil outlet one; 4. High-pressure oil supply line two; 5. Oil inlet two; 6. Oil outlet two; 7. Thrust bearing; 8. Oil supply branch pipe one; 9. Oil supply branch pipe two. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] like Figures 1-2As shown, a dual-channel high-pressure oil device for a vertical thrust bearing in this embodiment includes a thrust bearing 7. A high-pressure oil supply pipeline 2 4 is provided on the outside of the thrust bearing 7. An oil inlet 2 5 is provided at the end of the high-pressure oil supply pipeline 2 4 away from the thrust bearing 7. An oil supply branch pipe 2 9 is installed on the high-pressure oil supply pipeline 2 4 directly opposite the thrust bearing 7. An oil outlet 2 6 is provided at the end of the oil supply branch pipe 2 9 facing the thrust bearing 7. A high-pressure oil supply pipeline 1 is installed on the outside of the high-pressure oil supply pipeline 2 4. An oil inlet 2 2 is provided at the end of the high-pressure oil supply pipeline 1 away from the thrust bearing 7. The high-pressure oil supply pipeline 2 4 faces... Oil supply branch pipes 1-8 are installed at equal intervals on one side of the thrust bearing 7. Oil supply branch pipes 1-8 have oil outlets 3 facing the corresponding thrust bearing 7. High-pressure oil supply line 1-1 and high-pressure oil supply line 2-4 are arranged in parallel, and oil supply branch pipe 2-9 and oil supply branch pipe 1-8 are staggered. The staggered distribution of oil supply branch pipe 2-9 and oil supply branch pipe 1-8 can ensure that the other oil supply line can supply oil to the corresponding thrust bearing 7 normally when one oil supply line is blocked. This reduces the risk of dry grinding and burning of the vertical thrust bearing due to blockage of the oil supply line, and ensures the service life of the vertical thrust bearing.

[0031] like Figures 1-2 As shown, in this embodiment, there are no fewer than five thrust bearings 7, which are arranged in a ring. The thrust bearings 7 are essential components for the operation of the vertical thrust bearing. The second oil supply branch pipe 9 is internally connected to the second high-pressure oil supply pipeline 4. The second oil supply branch pipe 9 is evenly distributed on the second high-pressure oil supply pipeline 4. The internal connection between the second oil supply branch pipe 9 and the second high-pressure oil supply pipeline 4 ensures that the high-pressure oil in the second high-pressure oil supply pipeline 4 can be conveniently transported to the second oil supply branch pipe 9. Each second oil supply branch pipe 9 is connected to one thrust bearing 7. There are no fewer than two second oil supply branch pipes 9. The second oil supply branch pipe 9 ensures that the high-pressure oil in the second high-pressure oil supply pipeline 4 can smoothly enter the corresponding thrust bearing 7. A gap is reserved between the second oil outlet 6 and the corresponding thrust bearing 7. The existence of the gap ensures that the high-pressure oil flowing out of the second oil outlet 6 can smoothly fill the thrust bearing 7.

[0032] like Figures 1-2 As shown in this embodiment, each oil supply branch pipe 8 is connected to a thrust bearing 7. A gap is reserved between the oil outlet 3 and the corresponding thrust bearing 7. The existence of the gap can ensure that the high-pressure oil delivered by the oil supply branch pipe 8 can smoothly fill the corresponding thrust bearing 7. The oil supply branch pipe 8 is connected to the high-pressure oil supply pipeline 1. The oil supply branch pipes 8 are evenly distributed on the high-pressure oil supply pipeline 1. The oil supply branch pipes 8 can ensure that the high-pressure oil in the high-pressure oil supply pipeline 1 can smoothly enter the corresponding thrust bearing 7.

[0033] The specific implementation process of this embodiment is as follows: In use, firstly, high-pressure oil supply line 1 is connected in parallel with the high-pressure oil supply line 2 and laid on the outside of the thrust bearing 7 on the vertical thrust bearing. Then, the oil outlet 3 on high-pressure oil supply line 1 is connected to one set of thrust bearings 7, and the oil outlet 6 on high-pressure oil supply line 2 is connected to another set of thrust bearings 7. Then, under the action of the oil supply device, high-pressure oil is simultaneously injected into both high-pressure oil supply line 1 and high-pressure oil supply line 2, thus supplying high-pressure oil to the thrust bearings 7. During the oil supply process, high-pressure oil supply line 1 and high-pressure oil supply line 4 are arranged in parallel. At the same time, oil outlet 3 on high-pressure oil supply line 1 and oil outlet 6 on high-pressure oil supply line 4 are set alternately to provide high-pressure oil to each thrust bearing 7. This ensures that if one oil supply line is blocked, the other oil supply line can still supply oil to the corresponding thrust bearing 7 normally, reducing the risk of dry grinding and burning of the vertical thrust bearing due to blockage of the oil supply line, and thus ensuring the service life of the vertical thrust bearing.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dual-channel high-pressure oil device for vertical thrust bearings, characterized in that: The system includes a thrust bearing (7), a high-pressure oil supply line two (4) is provided on the outside of the thrust bearing (7), an oil inlet two (5) is provided at the end of the high-pressure oil supply line two (4) away from the thrust bearing (7), an oil supply branch pipe two (9) is installed on the high-pressure oil supply line two (4) directly opposite the thrust bearing (7), an oil outlet two (6) is provided on the end of the oil supply branch pipe two (9) facing the thrust bearing (7), a high-pressure oil supply line one (1) is installed on the outside of the high-pressure oil supply line two (4), an oil inlet one (2) is provided at the end of the high-pressure oil supply line one (1) away from the thrust bearing (7), an oil supply branch pipe one (8) is installed at equal intervals on the side of the high-pressure oil supply line two (4) facing the thrust bearing (7), and an oil outlet one (3) is provided on the side of the oil supply branch pipe one (8) facing the thrust bearing (7).

2. The dual-channel high-pressure oil device for a vertical thrust bearing according to claim 1, characterized in that: There are no fewer than five thrust pads (7), and the thrust pads (7) are arranged in a ring.

3. The dual-channel high-pressure oil device for a vertical thrust bearing according to claim 1, characterized in that: The second oil supply branch pipe (9) is internally connected to the second high-pressure oil supply pipeline (4), and the second oil supply branch pipe (9) is distributed at equal intervals on the second high-pressure oil supply pipeline (4).

4. A dual-channel high-pressure oil device for a vertical thrust bearing according to claim 3, characterized in that: Each of the oil supply branch pipes (9) is connected to one of the thrust bearings (7), and there are no fewer than two oil supply branch pipes (9).

5. A dual-channel high-pressure oil device for a vertical thrust bearing according to claim 3, characterized in that: A gap is reserved between the second oil outlet (6) and the corresponding thrust bearing (7).

6. A dual-channel high-pressure oil device for a vertical thrust bearing according to claim 1, characterized in that: The high-pressure oil supply line one (1) and the high-pressure oil supply line two (4) are arranged in parallel, and the oil supply branch line two (9) and the oil supply branch line one (8) are staggered.

7. A dual-channel high-pressure oil device for a vertical thrust bearing according to claim 6, characterized in that: Each of the oil supply branch pipes (8) is connected to a thrust bearing (7), and a gap is reserved between the oil outlet (3) and the corresponding thrust bearing (7).

8. A dual-channel high-pressure oil device for a vertical thrust bearing according to claim 7, characterized in that: The oil supply branch pipe (8) is connected to the high-pressure oil supply pipeline (1), and the oil supply branch pipe (8) is distributed at equal intervals on the high-pressure oil supply pipeline (1).

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