Main engine thrust bearing box oil circulating device

By designing an oil circulation device for the thrust bearing housing of the main unit, a stable oil film is formed by a distribution plate and a circulating oil pump. Combined with sedimentation and filtration by a partition plate and a cooling fan, the problems of uneven lubrication and contaminant retention are solved, thereby improving the lubrication effect and purifying the oil, and extending the service life of the bearing.

CN224550333UActive Publication Date: 2026-07-24CHINA SHANXI SIJIAN GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA SHANXI SIJIAN GRP
Filing Date
2025-09-26
Publication Date
2026-07-24

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    Figure CN224550333U_ABST
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Abstract

The utility model discloses a main machine group thrust bearing box oil circulating device, especially related to bearing box oil circulating technical field, including thrust bearing box, the inner chamber top of thrust bearing box is provided with distribution board, one side of thrust bearing box is provided with auxiliary oil tank, and the bottom of thrust bearing box is connected with liquid outlet pipe, and the top of auxiliary oil tank is provided with first circulating oil pump and second circulating oil pump, and the middle part fixedly connected with the partition board of auxiliary oil tank, steady flow board, heat conduction plate, cooling fan. The utility model discloses first through the distribution board of setting can be in second circulating oil pump to the injection liquid of distribution board inside, and pour on the bearing box internal structure, and the pouring range is wider, and the impact force is lower, can form stable oil film, improve lubrication effect, and through the cooperation of the multiple partition board and steady flow board of setting in auxiliary oil tank, can keep the stability of entering oil liquid, and can partition deposit, make the liquid after multiple deposit more pure, improve purification effect.
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Description

Technical Field

[0001] This utility model relates to the field of bearing housing oil circulation technology, and more specifically, to a main unit thrust bearing housing oil circulation device. Background Technology

[0002] In the industrial field, water pump units play a vital role. They are widely used in various processes, such as water treatment, water supply systems, petroleum and chemical industries. As one of the core components of the water pump unit, the thrust bearing housing bears a huge axial load. Its working condition directly affects the operating efficiency and service life of the equipment. As a key component of the thrust bearing, the oil circulation system is responsible for providing lubricating oil to the bearing, cooling the bearing and removing heat, and also washing away impurities on the bearing surface to prevent wear and corrosion. In traditional devices, cleaning oil is directly injected into the thrust bearing housing through simple pipes. The oil is injected in a columnar shape, directly impacting a localized area of ​​the bearing, resulting in insufficient lubrication in other areas. Insufficient lubrication prevents the formation of a stable oil film, leading to direct metal-to-metal contact and increasing the rate of localized wear. Furthermore, traditional devices only have a single-layer filter at the oil pump inlet, which cannot filter out fine wear particles and contaminants in the oil. Impurities enter the thrust bearing with the circulating oil, scratching the bearing contact surface and damaging the lubrication film. Therefore, a thrust bearing housing oil circulation device for main unit is proposed. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides an oil circulation device for the thrust bearing housing of the main unit to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a thrust bearing housing oil circulation device for a main unit, comprising a thrust bearing housing, wherein a distribution plate is provided at the top of the inner cavity of the thrust bearing housing, and by injecting liquid into the distribution plate and pouring it onto the internal structure of the bearing housing, a stable oil film can be formed to improve the lubrication effect; an auxiliary oil tank is provided on one side of the thrust bearing housing, and a liquid outlet pipe is connected to the bottom of the thrust bearing housing; a first circulating oil pump and a second circulating oil pump are provided at the top of the auxiliary oil tank, and by cooperating with the first circulating oil pump and the second circulating oil pump, the oil inside the thrust bearing housing can be drawn out and fed into the auxiliary oil tank for cooling and sedimentation, and then fed back into the interior of the thrust bearing housing to achieve oil circulation; The auxiliary oil tank is fixedly connected to a partition plate, a flow stabilizer plate, a heat conduction plate, and a cooling fan in the middle. The heat conduction plate is fixedly connected to a cooling plate and a heat absorption plate on both sides. The partition plate can separate the incoming oil from the settled oil. The heat absorption plate absorbs the heat of the oil and transfers it to the heat dissipation plate through the heat conduction plate. The cooling fan cools the oil. The heat conduction plate reduces the flow amplitude of the oil and improves the sedimentation and filtration effect. The input end of the first circulating oil pump is connected to a suction pipe, and a second control valve and a second flow indicator are installed in the middle of the suction pipe. The output end of the second circulating oil pump is connected to an inlet pipe, and a first control valve and a first flow indicator are installed in the middle of the inlet pipe. One end of the inlet pipe is connected to the inner cavity of the distribution plate. When the first circulating oil pump is started, the oil inside the thrust bearing housing can be drawn out to the interior of the auxiliary oil tank through the suction pipe and the outlet pipe. When the second circulating oil pump is started, the settled oil inside the auxiliary oil tank can be fed into the interior of the distribution plate and added to the interior of the thrust bearing housing to achieve oil circulation. The first control valve can be used to easily control the opening and closing of the pump, and the first flow indicator can be used to easily observe the amount of oil passing through the pump, which is convenient for manual recording.

[0005] Preferably, the output end of the first circulating oil pump is connected to the inner cavity of the auxiliary oil tank, and the output end of the first circulating oil pump is located directly above the flow stabilizer plate. The oil can be pumped into the interior of the auxiliary oil tank by the first circulating oil pump and fall onto the flow stabilizer plate for sedimentation and filtration.

[0006] Preferably, the input end of the second circulating oil pump is connected to the inner cavity of the auxiliary oil tank, and the input end of the second circulating oil pump is located on the side of the partition plate away from the flow stabilizer plate. The oil on one side of the inner cavity of the auxiliary oil tank can be input into the interior of the distribution plate through the second circulating oil pump.

[0007] Preferably, one end of the liquid extraction tube is connected to one end of the liquid outlet tube via a three-way pipe, and one end of the liquid extraction tube is provided with an oil drain valve for convenient oil draining.

[0008] Preferably, the shape of the distribution plate is adapted to the shape of the top wall of the inner cavity of the thrust bearing housing, and the bottom array of the distribution plate has multiple liquid outlet holes. Through the liquid outlet holes at the bottom of the distribution plate, oil can be poured onto the internal structure of the bearing housing to form a stable oil film and improve the lubrication effect.

[0009] Preferably, the number of the partition plates is set to two, with the height of the partition plate closer to the flow stabilizer plate being greater than the height of the partition plate on the other side. The top of the partition plate is provided with a connecting cavity, which divides the filter into two sedimentation chambers to improve the filtration effect.

[0010] Preferably, the two ends of the flow stabilizer are fixedly connected to the partition plate and the heat conduction plate, respectively. The heat absorption plate is located on the side of the heat conduction plate close to the flow stabilizer. The flow stabilizer stabilizes the liquid flow, the heat absorption plate absorbs the heat entering the oil, and the heat is transferred to one side of the heat dissipation plate through the heat conduction plate.

[0011] Preferably, the cooling fan is located on the side of the heat-conducting plate close to the heat sink, and the side wall of the auxiliary oil tank close to the cooling fan is provided with heat dissipation holes, so that the cooling fan can dissipate heat from the surface of the heat sink to achieve cooling.

[0012] The technical effects and advantages of this utility model are as follows: 1. This utility model firstly allows the distribution plate to inject liquid into the second circulating oil pump and pour it onto the internal structure of the bearing housing. The pouring range is wider and the impact force is lower, which can form a stable oil film and improve the lubrication effect. Furthermore, through the cooperation of multiple partition plates and flow stabilizers inside the auxiliary oil tank, the stability of the incoming oil can be maintained, and the sedimentation can be divided into sections, making the liquid after multiple sedimentations purer and improving the purification effect. 2. This utility model also absorbs oil heat through a heat-absorbing plate and transfers it to a heat-dissipating plate through a heat-conducting plate. The heat is then cooled by a cooling fan. Starting the first circulating oil pump allows the oil inside the thrust bearing housing to be drawn out of the auxiliary oil tank through the suction pipe and the discharge pipe. Starting the second circulating oil pump allows the settled oil inside the auxiliary oil tank to be added to the thrust bearing housing through the distribution plate, thus achieving oil circulation. The amount of oil passing through the first flow indicator is easy to observe and can be easily recorded manually. In summary, through the interaction of the above-mentioned multiple effects, the oil can be added by pouring, which allows for a wider range of application, lowers the impact force, forms a stable oil film, improves the lubrication effect, and makes the input oil purer through zoned sedimentation, thus improving the performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the auxiliary oil tank of this utility model.

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the distribution plate of this utility model.

[0017] The attached diagram is labeled as follows: 1. Thrust bearing housing; 2. Distribution plate; 3. Inlet pipe; 4. Outlet pipe; 5. Auxiliary oil tank; 6. First circulating oil pump; 7. Second circulating oil pump; 8. First flow indicator; 9. First control valve; 10. Second control valve; 11. Second flow indicator; 12. Suction pipe; 13. Oil drain valve; 14. Divider plate; 15. Flow stabilizer plate; 16. Heat-conducting plate; 17. Cooling fan; 18. Heat dissipation plate; 19. Heat absorption plate; 20. Outlet hole. Detailed Implementation

[0018] 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.

[0019] As attached Figure 1-4 The oil circulation device for the thrust bearing housing of the main unit shown includes a thrust bearing housing 1. A distribution plate 2 is provided at the top of the inner cavity of the thrust bearing housing 1. By injecting liquid into the distribution plate 2 and pouring it onto the internal structure of the bearing housing, a stable oil film can be formed, improving the lubrication effect. An auxiliary oil tank 5 is provided on one side of the thrust bearing housing 1. A liquid outlet pipe 4 is connected to the bottom of the thrust bearing housing 1. A first circulating oil pump 6 and a second circulating oil pump 7 are provided at the top of the auxiliary oil tank 5. Through the cooperation of the first circulating oil pump 6 and the second circulating oil pump 7, the oil inside the thrust bearing housing 1 can be drawn out and fed into the auxiliary oil tank 5 for cooling and sedimentation, and then fed back into the interior of the thrust bearing housing 1 to achieve oil circulation. A partition plate 14, a flow stabilizer plate 15, a heat conduction plate 16, and a cooling fan 17 are fixedly connected to the middle of the auxiliary oil tank 5. A heat dissipation plate 18 and a heat absorption plate 19 are fixedly connected to both sides of the heat conduction plate 16, respectively. The partition plate 14 can separate the incoming oil from the sedimented impurities. The heat absorption plate 19 absorbs the heat of the oil and transfers it to the heat dissipation plate 18 through the heat conduction plate 16. The cooling fan 17 cools the oil. The heat conduction plate 16 reduces the flow amplitude of the oil and improves the sedimentation and filtration effect. The input end of the first circulating oil pump 6 is connected to a suction pipe 12. A second control valve 10 and a second flow indicator 11 are installed in the middle of the suction pipe 12. The output end of the second circulating oil pump 7 is connected to an inlet pipe 3. A first control valve 9 and a first flow indicator 8 are installed in the middle of the inlet pipe 3. One end of the inlet pipe 3 is connected to the inner cavity of the distribution plate 2. When the first circulating oil pump 6 is started, the oil inside the thrust bearing housing 1 can be drawn out to the interior of the auxiliary oil tank 5 through the suction pipe 12 and the outlet pipe 4. When the second circulating oil pump 7 is started, the settled oil inside the auxiliary oil tank 5 can be fed into the interior of the distribution plate 2 and added to the interior of the thrust bearing housing 1 to achieve oil circulation. The first control valve 9 can be used to control the opening and closing of the pump, and the first flow indicator 8 can be used to observe the amount of oil passing through the pump, which is convenient for manual recording.

[0020] As attached Figure 1-4As shown, the output end of the first circulating oil pump 6 is connected to the inner cavity of the auxiliary oil tank 5. The output end of the first circulating oil pump 6 is located directly above the flow stabilizer plate 15. The input end of the second circulating oil pump 7 is connected to the inner cavity of the auxiliary oil tank 5. The input end of the second circulating oil pump 7 is located on the side of the partition plate 14 away from the flow stabilizer plate 15. One end of the suction pipe 12 is connected to one end of the discharge pipe 4 through a three-way pipe. One end of the suction pipe 12 is equipped with a drain valve 13. The shape of the distribution plate 2 is adapted to the shape of the top wall of the inner cavity of the thrust bearing housing 1. Multiple discharge holes 20 are arrayed at the bottom of the distribution plate 2. The first circulating oil pump 6 can input the oil into the interior of the auxiliary oil tank 5 and let it fall on the flow stabilizer plate 15 for sedimentation and filtration. The second circulating oil pump 7 can input the oil from one side of the inner cavity of the auxiliary oil tank 5 into the interior of the distribution plate 2. The drain valve 13 facilitates oil discharge. The oil can be poured onto the internal structure of the bearing housing through the discharge holes 20 at the bottom of the distribution plate 2 to form a stable oil film and improve the lubrication effect.

[0021] As attached Figure 1-3 As shown, there are two partition plates 14. The height of one partition plate 14 near the flow stabilizer plate 15 is greater than the height of the other partition plate 14. A connecting cavity is provided at the top of the partition plate 14. The two ends of the flow stabilizer plate 15 are fixedly connected to the partition plate 14 and the heat conduction plate 16, respectively. The heat absorption plate 19 is located on the side of the heat conduction plate 16 near the flow stabilizer plate 15. The cooling fan 17 is located on the side of the heat conduction plate 16 near the heat dissipation plate 18. The side wall of the auxiliary oil tank 5 near the cooling fan 17 is provided with heat dissipation holes. The partition plate 14 divides the liquid into two sedimentation chambers to improve the filtration effect. The flow stabilizer plate 15 stabilizes the liquid flow. The heat absorption plate 19 absorbs the temperature of the incoming oil and inputs it to one side of the heat dissipation plate 18 through the heat conduction plate 16. The cooling fan 17 dissipates the heat from the surface of the heat dissipation plate 18 to achieve cooling.

[0022] It is worth noting that ventilation openings and removable dust filters are provided on the front and rear sides of the cavity where the cooling fan 17 is located, which can achieve the functions of air intake and dust prevention.

[0023] The working principle of this utility model is as follows: When in use, the first circulating oil pump 6 is started to draw out the oil at the bottom of the inner cavity of the thrust bearing housing 1 through the outlet pipe 4 and the extraction pipe 12 and input it into the cavity of the auxiliary oil tank 5 where the flow stabilizing plate 15 is located for sedimentation and filtration. At the same time, the cooling fan 17 is started to cool the oil in the cavity where the flow stabilizer 15 is located through the heat dissipation plate 18, the heat conduction plate 16, and the heat absorption plate 19. The settled top oil will overflow the top of the partition plate 14 and flow into the inner cavity of the auxiliary oil tank 5 away from the cooling fan 17. By starting the second circulating oil pump 7, the settled and filtered oil is introduced into the distribution plate 2 through the inlet pipe 3 and poured onto the internal structure of the bearing housing to form a stable oil film, thereby improving the lubrication effect and realizing the circulation of the oil.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thrust bearing housing oil circulation device for a main unit, comprising a thrust bearing housing (1), characterized in that: The thrust bearing housing (1) has a distribution plate (2) at the top of its inner cavity, an auxiliary oil tank (5) on one side of the thrust bearing housing (1), an outlet pipe (4) at the bottom of the thrust bearing housing (1), and a first circulating oil pump (6) and a second circulating oil pump (7) at the top of the auxiliary oil tank (5). The auxiliary oil tank (5) is fixedly connected to a partition plate (14), a flow stabilizer plate (15), a heat conduction plate (16), and a heat dissipation fan (17). The heat conduction plate (16) is fixedly connected to a heat dissipation plate (18) and a heat absorption plate (19) on both sides respectively. The input end of the first circulating oil pump (6) is connected to a liquid extraction pipe (12). A second control valve (10) and a second flow indicator (11) are provided in the middle of the liquid extraction pipe (12). The output end of the second circulating oil pump (7) is connected to an inlet pipe (3). A first control valve (9) and a first flow indicator (8) are provided in the middle of the inlet pipe (3). One end of the inlet pipe (3) is connected to the inner cavity of the distribution plate (2).

2. The main unit thrust bearing housing oil circulation device according to claim 1, characterized in that: The output end of the first circulating oil pump (6) is connected to the inner cavity of the auxiliary oil tank (5), and the output end of the first circulating oil pump (6) is located directly above the flow stabilizer plate (15).

3. The main unit thrust bearing housing oil circulation device according to claim 1, characterized in that: The input end of the second circulating oil pump (7) is connected to the inner cavity of the auxiliary oil tank (5), and the input end of the second circulating oil pump (7) is located on the side of the partition plate (14) away from the flow stabilizer plate (15).

4. The main unit thrust bearing housing oil circulation device according to claim 1, characterized in that: One end of the liquid extraction tube (12) is connected to one end of the liquid outlet tube (4) through a three-way tube, and one end of the liquid extraction tube (12) is provided with an oil drain valve (13).

5. The main unit thrust bearing housing oil circulation device according to claim 1, characterized in that: The shape of the distribution plate (2) is adapted to the shape of the top wall of the inner cavity of the thrust bearing housing (1), and the bottom array of the distribution plate (2) is provided with multiple liquid outlet holes (20).

6. The main unit thrust bearing housing oil circulation device according to claim 1, characterized in that: The number of the partition plates (14) is set to two, and the height of one partition plate (14) closer to the flow stabilizer plate (15) is greater than the height of the other partition plate (14). The top of the partition plate (14) is provided with a connecting cavity.

7. The main unit thrust bearing housing oil circulation device according to claim 1, characterized in that: The two ends of the flow stabilizer (15) are fixedly connected to the partition plate (14) and the heat conduction plate (16) respectively, and the heat absorption plate (19) is located on the side of the heat conduction plate (16) close to the flow stabilizer (15).

8. The main unit thrust bearing housing oil circulation device according to claim 1, characterized in that: The cooling fan (17) is located on the side of the heat-conducting plate (16) near the heat dissipation plate (18), and the auxiliary oil tank (5) has heat dissipation holes on the side wall near the cooling fan (17).