Cooling system of vertical thrust sliding bearing

Abstract

The utility model relates to a cooling system of a vertical thrust sliding bearing. The cooling system comprises a base, a thrust head and an axial thrust pad located between the base and the thrust head. The surface of the base is provided with an oil groove which is concavely arranged, and the oil groove extends towards the center of the base and penetrates through the inner wall of the base; one end, close to the base, of the thrust block extends outwards to form a step part; the guide bearing seat is of an annular structure; according to the cooling system disclosed by the utility model, efficient cooling, uniform lubrication and remarkable improvement of structural stability are realized through an innovative structural design and an optimized lubricating oil flowing path; lubricating oil enters the oil-water cooler from the working areas of the axial thrust pad and the guide bearing pad and enters the working areas again after being cooled, a first circulating channel and a second circulating channel of the lubricating oil are formed, efficient cyclic utilization of the lubricating oil is facilitated, and the working temperature of the bearing can be remarkably reduced; and the performance reduction or damage of the bearing caused by overheating is also avoided.

Description

Technical Field

[0001] This application relates to the field of thrust sliding bearing technology, and in particular to a cooling system for a vertical thrust sliding bearing. Background Technology

[0002] Vertical thrust sliding bearings are widely used in various heavy machinery and equipment, especially in applications requiring large axial loads, such as vertical water pumps, vertical motors, and vertical hydro generators. Because these devices generate a large amount of frictional heat during operation, if they are not cooled effectively and promptly, the bearing temperature will rise, affecting its performance and service life.

[0003] Traditional cooling methods typically employ external cooling systems, such as air cooling or water cooling. However, these methods often suffer from uneven cooling, complex structures, and difficult maintenance. This is particularly true in vertical thrust sliding bearings, where the vertical arrangement of the bearing makes the flow and distribution of the cooling medium more difficult to control, easily leading to localized overheating or insufficient cooling. Furthermore, traditional cooling devices usually occupy a large space, increasing the overall size and weight of the equipment, which is detrimental to compact design and installation.

[0004] To address these issues, several improved cooling device designs have emerged in recent years. For example, cooling pipes are installed inside the bearing housing, utilizing a cooling medium (such as oil or water) flowing within these pipes to remove heat generated by the bearing. However, these designs still have some shortcomings in practical applications. First, the arrangement of cooling pipes is often quite simple, failing to fully utilize the space inside the bearing housing, resulting in limited cooling effectiveness. Second, the connection between the cooling pipes and the bearing housing is not robust enough, easily causing vibration or displacement during equipment operation, affecting cooling efficiency and equipment stability. Furthermore, existing cooling systems cannot be specifically designed according to the flow path of the lubricating oil, leading to low cooling efficiency. Utility Model Content

[0005] To address the problems of limited cooling effect, poor installation stability, and poor cooling effect caused by the inability to match the lubricating oil flow path in the existing cooling systems of vertical thrust sliding bearings mentioned in the background art, this application provides a cooling system for vertical thrust sliding bearings.

[0006] The cooling system for a vertical thrust sliding bearing provided in this application adopts the following technical solution:

[0007] A cooling system for a vertical thrust sliding bearing includes a base, a thrust head, and an axial thrust bearing located between the base and the thrust head;

[0008] The base surface has a recessed oil groove that extends toward the center of the base and penetrates the inner wall of the base.

[0009] The thrust head extends outward from one end near the base to form a stepped portion; it also includes...

[0010] The guide bearing housing has a ring structure and is connected to the base surface. The oil groove extends to the outside of the guide bearing housing. The upper surface of the guide bearing housing is higher than the lower plane of the step of the thrust head. A first oil hole is opened in its circumferential direction. The first oil hole is connected to the working area of ​​the axial thrust bearing.

[0011] An oil-water cooler is fitted and connected to the outside of the guide bearing housing, including a base frame with an L-shaped cross-section, and cooling pipes are installed inside the L-shaped base frame and at the bottom.

[0012] The lowest cooling pipe inside the L-shaped base frame forms an oil passage cavity between itself and the bottom wall of the base frame. This oil passage cavity is connected to the first oil hole. The area where the cooling pipe is located below the L-shaped base frame is connected to the oil tank on the base.

[0013] By adopting the above technical solution, during the cooling process, the lubricating oil enters the L-shaped structure of the oil-water cooler from the working area of ​​the axial thrust bearing along the first oil hole. Under pressure, it flows upwards along the outside of the oil-water cooler, then flows downwards along the outside of the cooler. After being cooled by the cooling pipe below the bottom wall, it enters the oil tank and re-enters the working area of ​​the axial thrust bearing, forming the first circulation channel. This allows the lubricating oil in the working area of ​​the axial thrust bearing to achieve effective circulation cooling. The purpose of setting the oil tank on the base surface is mainly to allow the lubricating oil to enter the working area of ​​the axial thrust bearing along the oil tank and to fully exchange heat with the cooling pipe below the base frame before entering (this heat exchange is the secondary cooling of the lubricating oil). The structural design of the cooling pipe below the base frame further improves the cooling efficiency of the lubricating oil, resulting in better cooling effect. The first oil hole of the guide bearing seat is used to immediately discharge the lubricating oil from the working area of ​​the axial thrust bearing and guide it directly into the oil passage cavity of the oil-water cooler. The purpose of setting this oil passage cavity is to allow the lubricating oil to flow into the oil passage cavity first, which is conducive to the uniform distribution and efficient flow of the lubricating oil, improving the flow efficiency.

[0014] Optionally, the base frame includes an annular outer wall and a bottom wall. The bottom wall is located below the annular outer wall, and the upper surface of the bottom wall has raised ribs. After the cooling pipes of the lowest layer inside the oil-water cooler come into contact with the ribs, an oil passage cavity is formed between the cooling pipes and the bottom wall.

[0015] By adopting the above technical solution, the raised ribs form an oil passage cavity between the cooling pipe and the bottom wall, which optimizes the flow path of the lubricating oil, ensures that the lubricating oil can be evenly distributed and achieve efficient flow and cooling. Furthermore, the raised ribs can enhance the overall structural strength of the base frame, which is beneficial to the stability of the base frame structure and the extension of its service life. In addition, the design of the ribs can thicken the bottom wall at the rib position, thereby facilitating the opening of mounting holes for connecting the guide bearing seat.

[0016] Optionally, the base frame has radially opened mounting holes, and bolts are inserted into the mounting holes to connect the base frame to the guide bearing seat.

[0017] By adopting the above technical solution to fix the oil-water cooler to the guide bearing seat, the stability of the oil-water cooler installation structure is improved, preventing it from shaking or shifting during operation and ensuring the reliability and stability of the cooling system. On the other hand, the structure of the entire cooling system is made simpler and more compact.

[0018] Optionally, an oil baffle is also included, which is mounted on the base and extends into the interior of the thrust head. An oil passage gap is formed between the outer wall of the oil baffle and the inner wall of the center hole of the base, the inner wall of the axial thrust bearing, and part of the inner wall of the thrust head, so that the lubricating oil entering the oil groove can enter the working area of ​​the axial thrust bearing along the oil passage gap.

[0019] By adopting the above technical solution, the lubricating oil can be fully circulated through the oil baffle, allowing the lubricating oil to flow from the end of the axial thrust bearing near the bearing centerline to the outer end, thereby covering the entire contact area between the axial thrust bearing and the thrust head, which is beneficial to improving the cooling effect of the lubricating oil.

[0020] Optionally, it also includes a partition plate mounted on the upper surface of the base and used to separate the gap between two adjacent axial thrust pads from the oil groove.

[0021] The main reason for adopting the above technical solution is that there is a gap between two adjacent axial thrust bearings, and lubricating oil can flow into this gap. If no baffle is set, the lubricating oil will circulate back and forth in the gap between the two axial thrust bearings and in the oil groove, causing local heating of the lubricating oil in this area. However, by setting a baffle to separate the gap between two adjacent axial thrust bearings from the oil groove, the lubricating oil can flow directly along the oil groove to the oil passage gap, and then enter the working area of ​​the axial thrust bearing and be directly discharged along the first oil hole, avoiding the situation of local lubricating oil overheating. This makes the flow path of the lubricating oil clearer and avoids the formation of eddies or stagnation of the lubricating oil during the flow process.

[0022] Optionally, the lower end of the thrust head is provided with an oil outlet hole, and the guide bearing seat is provided with a second oil hole that is connected to the oil outlet hole and is obliquely upward. The second oil hole is located above the first oil hole and is connected to the internal space of the L-shaped base frame.

[0023] By adopting the above technical solution, some of the lubricating oil entering the oil passage gap is discharged outward from the working area of ​​the axial thrust bearing, while the other part can enter the oil outlet through the second oil hole and be discharged, further improving the flow rate and heat exchange efficiency of the lubricating oil. The oil outlet is inclined upward, mainly to avoid interfering with the discharge of lubricating oil from the first oil hole below. This allows the lubricating oil to flow upward quickly under the guidance of the inclined hole and be discharged from the oil-water cooler, thereby further optimizing the flow path of the lubricating oil and avoiding the problem of lubricating oil stagnation or backflow in the oil-water cooler.

[0024] Optional, also includes:

[0025] The oil tank, oil-water cooler, thrust head, axial thrust bearing, and guide bearing housing are all located inside the oil tank, which is installed on the upper edge of the base.

[0026] The end cap is installed above the oil tank and is coaxially arranged with the thrust head;

[0027] The guide bearing is located in the annular area between the end cap and the thrust head.

[0028] By adopting the above technical solution, a cavity for accommodating lubricating oil can be formed between the oil tank, base, end cover, and guide bearing seat. When the thrust head rotates, the lubricating oil in the working area where the axial thrust bearing and guide bearing are located can enter the cavity under the condition of centrifugal force or linear velocity difference. After cooling, it can enter the working area, which can form an effective circulation and reuse of lubricating oil. It has the advantages of compact structure and good cooling effect.

[0029] Optionally, a third oil hole is provided in the circumferential direction of the end cap, and the third oil hole is configured to allow the lubricating oil in the oil tank to flow into the working area of ​​the guide bearing.

[0030] By adopting the above technical solution, the design of the third oil hole enables lubricating oil to flow into and cover the working area of ​​the guide bearing efficiently, ensuring the comprehensiveness and reliability of the lubrication effect.

[0031] Optionally, an oil outlet channel is formed between the stepped portion of the thrust head and the end cover. One end of the oil outlet channel is connected to the working area of ​​the guide bearing, and the other end of the oil outlet channel is connected to the internal space of the L-shaped base frame.

[0032] By adopting the above technical solution, the lubricating oil enters the working area of ​​the guide bearing from the third oil hole, then flows from the working area of ​​the thrust bearing to the oil outlet channel, and finally enters the oil-water cooler for cooling before re-entering the third oil hole, thus forming a second circulation channel. This second circulation channel is mainly used for cooling the lubricating oil in the working area of ​​the guide bearing, and does not interfere with the first circulation channel, thereby further improving the cooling efficiency.

[0033] Optionally, the base frame is provided with a support assembly for limiting the cooling pipe; the support assembly includes horizontal and vertical plates connected to the annular outer wall and the bottom wall and arranged in a cross pattern, the horizontal and vertical plates intersecting to form multiple cavities that facilitate the passage of the cooling pipe and are used to limit the cooling pipe, and the outer wall of the cooling pipe is in contact with the four inner walls of the cavity.

[0034] By adopting the above technical solution, the cavity formed by the intersection of the horizontal and vertical plates not only provides precise positioning for the cooling pipes, but also enhances the connection strength between the cooling pipes and the base frame, ensuring the stability of the cooling pipes during operation, while improving the flow efficiency of the cooling medium.

[0035] Optionally, the base frame is equipped with an inlet pipe and an outlet pipe, and the two ends of the cooling pipe are connected to the inlet pipe and the outlet pipe, respectively.

[0036] By adopting the above technical solution, the inlet pipe is used to introduce the low-temperature cooling medium into the cooling pipe, and the outlet pipe is used to discharge the high-temperature cooling medium outward, thereby realizing the flow and circulation of the cooling medium to remove the heat generated during bearing operation and improve the cooling effect.

[0037] Optionally, the number of cooling pipes is eight, arranged in four layers along the axial direction of the base frame, with two cooling pipes in each layer. Specifically, three layers are provided inside the annular outer wall, and one layer is installed at the lower end of the bottom wall.

[0038] By adopting the above technical solution and utilizing the arrangement of multi-layer cooling pipes, multiple circulations and uniform distribution of the cooling medium are achieved, ensuring that the lubricating oil is adequately cooled. The cooling pipes below the bottom wall serve as secondary cooling, further reducing the temperature of the lubricating oil and improving the cooling effect and bearing performance.

[0039] In summary, this application includes at least one of the following beneficial technical effects:

[0040] This utility model's cooling system achieves significant improvements in efficient cooling, uniform lubrication, and structural stability through innovative structural design and optimized lubricant flow path. Specifically, lubricant enters the oil-water cooler from the working areas of the axial thrust bearing and guide bearing respectively, and after cooling, re-enters the working area, forming a first and second circulation channel for the lubricant. This facilitates efficient lubricant recycling, significantly reduces the bearing's operating temperature, and prevents bearing performance degradation or damage due to overheating. Simultaneously, the L-shaped structure and multi-layer cooling pipe arrangement of the oil-water cooler make the flow path of the cooling medium more rational, further improving cooling efficiency.

[0041] This invention, through the structural design of the partition, avoids the generation of eddies and high temperatures in local areas inside the bearing by the lubricating oil, optimizes the flow path of the lubricating oil, and avoids lubricating oil waste and local overheating problems.

[0042] This invention makes the installation of the base frame more flexible and stable by designing mounting holes; and the bracket assembly provides precise positioning and stable support for the cooling pipes, avoiding the impact of vibration or displacement on the cooling effect during operation. Attached Figure Description

[0043] Figure 1 This is a perspective view of the present invention;

[0044] Figure 2 This is an exploded view of this utility model;

[0045] Figure 3 This is a top view of the present invention;

[0046] Figure 4 This is a utility model Figure 3 Sectional view of AA;

[0047] Figure 5 This is a utility model Figure 3 Sectional view of BB;

[0048] Figure 6 This is a utility model Figure 3 Sectional view of CC;

[0049] Figure 7 This is a perspective view of the base of this utility model;

[0050] Figure 8 This is a perspective view of the guide bearing housing of this utility model;

[0051] Figure 9 This is a cross-sectional view of the guide bearing housing of this utility model;

[0052] Figure 10This is a perspective view of the oil-water cooler of this utility model;

[0053] Figure 11 This is a top view of the oil-water cooler of this utility model;

[0054] Figure 12 This is a utility model Figure 11 A three-dimensional sectional view of DD;

[0055] Figure 13 This is a utility model Figure 11 Sectional view of DD;

[0056] Figure 14 This is a three-dimensional sectional view of the base frame of this utility model.

[0057] Explanation of reference numerals in the attached figures:

[0058] 1. Oil baffle; 2. Base; 201. Oil trough; 3. Partition plate; 4. Axial thrust bearing; 5. Guide bearing seat; 501. First oil hole; 502. Second oil hole; 6. Thrust head; 601. Oil outlet hole; 602. Stepped section; 7. Guide bearing; 8. Oil-water cooler; 801. Base frame; 8011. Annular outer wall; 8012. Bottom wall; 8013. Rib plate; 8014. Horizontal plate; 8015. Vertical plate; 8016. Cavity; 802. Cooling pipe; 803. Oil passage cavity; 804. Mounting hole; 805. Liquid inlet pipe; 806. Liquid outlet pipe; 9. Oil tank; 10. End cap; 1001. Third oil hole; 11. Oil passage gap; 12. Oil outlet channel. Detailed Implementation

[0059] The present application will be further described in detail below with reference to the accompanying drawings.

[0060] like Figure 1-14 As shown in the illustration, this application discloses a cooling system for a vertical thrust sliding bearing, including a base 2, a thrust head 6, and an axial thrust bearing 4 located between the base 2 and the thrust head 6. During operation, the thrust head 6 rotates. To facilitate the rotation of the thrust head 6, an axial thrust bearing 4 is provided between the thrust head 6 and the base 2 to bear axial loads. More specifically, in this example, multiple axial thrust bearings 4 are provided inside the bearing and are evenly distributed around the centerline of the base 2. The above structure and principle are conventional technologies in the prior art and will not be elaborated further here.

[0061] Specifically, the surface of the base 2 has a recessed oil groove 201, which extends toward the center of the base 2 and penetrates the inner wall of the base 2, such as... Figure 7As shown, eight oil grooves 201 are provided on the surface of the base 2 and are evenly distributed around the center of the base 2 to achieve uniform distribution of lubricating oil. In other embodiments, the number of oil grooves 201 may be set differently according to the actual size of the base 2 or the working requirements, and is not limited here.

[0062] The oil trough 201 is designed to be open at one end near the center of the base 2, which is mainly to allow the lubricating oil to flow toward its central area, so that it can enter the oil passage 11 on the outer wall of the oil baffle cylinder 1 and optimize the flow path.

[0063] The thrust head 6 extends outward from the end near the base 2 to form a stepped portion 602, which can be used to achieve full contact with the axial thrust bearing 4, thereby improving the axial support effect of the axial thrust bearing 4. In actual operation, the lower surface of the stepped portion 602 of the thrust head 6 is the working area of ​​the axial thrust bearing 4. When the thrust head 6 rotates, the linear velocity of the lubricating oil near the outer edge of the stepped portion 602 is greater than the linear velocity of the lubricating oil near the inner edge of the stepped portion 602, creating a linear velocity difference. Under the action of this linear velocity difference, the lubricating oil can flow outward from the center of the bearing, serving as the initial driving force for the lubricating oil circulation. The lubricating oil flow principle at the guide bearing 7 is similar and will not be elaborated here.

[0064] In addition, the cooling system also includes a guide bearing housing 5 and an oil-water cooler 8.

[0065] The guide bearing seat 5 has a ring-shaped structure and is connected to the surface of the base 2. The oil groove 201 extends outward from the guide bearing seat 5. The upper surface of the guide bearing seat 5 is higher than the lower plane of the step portion 602 of the thrust head 6, and is used to surround the area where the axial thrust bearing 4 is located. A first oil hole 501 is opened in its circumferential direction. The first oil hole 501 is connected to the working area of ​​the axial thrust bearing 4. The first oil hole 501 is an elongated hole opened in the circumferential direction of the guide bearing seat 5. In this example, there are eight of them, which are evenly distributed around the center of the guide bearing seat 5, which can facilitate the rapid passage of lubricating oil.

[0066] The oil-water cooler 8 is sleeved and connected to the outside of the guide bearing seat 5. It includes a base frame 801 with an L-shaped cross-section. Cooling pipes 802 are installed inside the L-shaped base frame 801 and at the bottom. That is, some cooling pipes 802 are located inside the annular outer wall 8011, and other cooling pipes 802 are installed at the lower end of the bottom wall 8012. In this example, there are eight cooling pipes 802, which are coaxially installed on the base frame 801.

[0067] Among them, the lowest cooling pipe 802 located inside the L-shaped base 801 forms an oil passage cavity 803 between the bottom wall 8012 of the base 801 and the oil passage cavity 803 is connected to the first oil hole 501. The area where the cooling pipe 802 is located below the L-shaped base 801 is connected to the oil groove 201 on the base 2.

[0068] The working principle described above is as follows: Figure 4 As shown by the arrow, during the cooling process, the lubricating oil enters the L-shaped structure of the oil-water cooler 8 through the first oil hole 501 from the working area of ​​the axial thrust bearing 4 (this working area is mainly the space between the axial thrust bearing 4 and the thrust head 6, which is used to form an oil film for circulating cooling in this space, and also includes the area between two adjacent axial thrust bearings 4). Under pressure, the lubricating oil flows upward to the oil-water cooler 8, and then flows downward along the outside of the oil-water cooler 8. After being cooled by the cooling pipe 802 below the bottom wall 8012, it enters the oil tank 201 and re-enters the working area of ​​the axial thrust bearing 4 from the oil tank 201, forming the first circulation channel, so that the lubricating oil in the working area of ​​the axial thrust bearing 4 can achieve effective circulating cooling.

[0069] Specifically, the base frame 801 includes an annular outer wall 8011 and a bottom wall 8012. The bottom wall 8012 is located below the annular outer wall 8011, and the upper surface of the bottom wall 8012 has a raised rib 8013. After the cooling pipe 802 inside the oil-water cooler 8 comes into contact with the rib 8013, an oil passage cavity 803 is formed between the cooling pipe 802 and the bottom wall 8012. In this example, the annular outer wall 8011, the bottom wall 8012, and the rib 8013 are integrally formed. In other embodiments, the three can be connected by welding or bolts, which is not limited here. In addition to enhancing the overall strength of the base frame 801, the rib 8013 also facilitates radial drilling at the position of the rib 8013. That is, the base frame 801 has radially opened mounting holes 804. After bolts are inserted into the mounting holes 804, the base frame 801 is connected to the guide bearing seat 5.

[0070] Specifically, it also includes an oil baffle cylinder 1, which is installed on the base 2 and extends into the interior of the thrust head 6. The thrust head 6 is sleeved on the outside of the oil baffle cylinder 1. An oil passage gap 11 is formed between the outer wall of the oil baffle cylinder 1 and the inner wall of the center hole of the base 2, the inner wall of the axial thrust bearing 4, and part of the inner wall of the thrust head 6, so that the lubricating oil entering the oil groove 201 can enter the working area of ​​the axial thrust bearing 4 along the oil passage gap 11. A sealing ring is provided between the thrust head 6 and the oil baffle cylinder 1, and at the connection between the base 2 and the oil baffle cylinder 1, to prevent the lubricating oil from leaking after entering the oil passage gap 11.

[0071] Specifically, it also includes a partition plate 3 installed on the upper surface of the base 2 and used to separate the gap between two adjacent axial thrust bearings 4 from the oil groove 201. The partition plate 3 is fixed to the surface of the base 2 by bolt connection, and its circumferential edge abuts against the inner wall of the guide bearing seat 5. An oil passage gap 11 is also formed between the inner wall of the central hole and the outer wall of the oil baffle cylinder 1.

[0072] The partition 3 is designed to prevent the gap area between two adjacent axial thrust bearings 4 from being directly connected to the oil groove 201, which can prevent the lubricating oil from generating local eddies and the local temperature from being too high.

[0073] Specifically, the lower end of the thrust head 6 is provided with an oil outlet hole 601, and multiple oil outlet holes 601 are provided at the lower end of the thrust head 6 and are evenly distributed around the center of the thrust head 6; the guide bearing seat 5 is provided with a second oil hole 502 that is connected to the oil outlet hole 601 and is obliquely upward. The second oil hole 502 is located above the first oil hole 501 and is connected to the internal space of the L-shaped base frame 801. The second oil hole 502 is evenly distributed around the center of the guide bearing seat 5.

[0074] Specifically, it also includes:

[0075] The oil tank 9, oil-water cooler 8, thrust head 6, axial thrust bearing 4, and guide bearing seat 5 are all located inside the oil tank 9, which is installed on the upper edge of the base 2.

[0076] End cap 10 is installed above oil tank 9 and is coaxially arranged with thrust head 6;

[0077] The guide bearing 7 is located in the annular area between the end cover 10 and the thrust head 6. To limit the axial movement of the guide bearing 7, limiting plates are installed on the end cover 10 at both the upper and lower positions of the guide bearing 7. This structure and principle for axially limiting the guide bearing 7 is a conventional method in the prior art and will not be elaborated on here.

[0078] Specifically, the end cover 10 is provided with a third oil hole 1001 in the circumferential direction. Multiple third oil holes 1001 are provided and evenly distributed around the center line of the end cover 10. The third oil hole 1001 is configured to allow the lubricating oil in the oil tank 9 to flow into the working area of ​​the guide shaft bearing 7.

[0079] Specifically, an oil outlet channel 12 is formed between the stepped portion 602 of the thrust head 6 and the end cap 10. One end of the oil outlet channel 12 is connected to the working area of ​​the guide bearing 7, and the other end of the oil outlet channel 12 is connected to the internal space of the L-shaped base 801. This arrangement allows the lubricating oil to enter the working area of ​​the guide bearing 7 from the third oil hole 1001, then flow from the working area of ​​the thrust bearing to the oil outlet channel 12, and finally enter the oil-water cooler 8 for cooling before re-entering the third oil hole 1001, forming a second circulation channel. Figure 4 As indicated by the arrow.

[0080] Specifically, the base frame 801 is provided with a support assembly for limiting the cooling pipe 802; the support assembly includes a horizontal plate 8014 and a vertical plate 8015 connected to the annular outer wall 8011 and the bottom wall 8012 and arranged in a cross pattern. The horizontal plate 8014 and the vertical plate 8015 intersect to form a plurality of cavities 8016 for the cooling pipe 802 to pass through and for limiting the cooling pipe 802. The outer wall of the cooling pipe 802 is in contact with the four inner walls of the cavity 8016. In this example, there are eight support assemblies evenly distributed around the center of the base frame 801 to achieve uniform force and positioning of the cooling pipe 802. The horizontal plate 8014 and the vertical plate 8015 can be connected to the annular outer wall 8011 and the bottom wall 8012 respectively by welding.

[0081] Specifically, the base frame 801 is equipped with an inlet pipe 805 and an outlet pipe 806. The two ends of the cooling pipe 802 are connected to the inlet pipe 805 and the outlet pipe 806, respectively. The inlet pipe 805 and the outlet pipe 806 extend outward along the axial direction of the base frame 801. The cooling medium is water. Water enters the cooling pipe 802 from the inlet pipe 805, flows in the cooling pipe 802, and is then discharged from the outlet pipe 806.

[0082] Specifically, there are eight cooling pipes 802, arranged in four layers along the axial direction of the base frame 801. Each layer has two cooling pipes 802. There are three layers inside the annular outer wall 8011 and one layer installed at the lower end of the bottom wall 8012. In other embodiments, the number of cooling pipes 802 and the distribution of cooling pipes 802 inside the base frame 801 can be specifically designed according to actual needs, and are not limited here.

[0083] The above are all 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 cooling system for a vertical thrust sliding bearing, comprising a base (2), a thrust head (6), and an axial thrust bearing (4) located between the base (2) and the thrust head (6), characterized in that: The base (2) has a recessed oil groove (201) on its surface. The oil groove (201) extends toward the center of the base (2) and penetrates the inner wall of the base (2). The thrust head (6) extends outward from one end near the base (2) to form a stepped portion (602); it also includes The guide bearing seat (5) has a ring structure and is connected to the surface of the base (2). The oil groove (201) extends to the outside of the guide bearing seat (5). The upper surface of the guide bearing seat (5) is higher than the lower plane of the step (602) of the thrust head (6). A first oil hole (501) is provided in its circumferential direction. The first oil hole (501) is connected to the working area of ​​the axial thrust bearing (4). The oil-water cooler (8) is sleeved and connected to the outside of the guide bearing seat (5), including a base frame (801) with an L-shaped cross-section, and cooling pipes (802) are installed inside the L-shaped base frame (801) and at the bottom. Among them, the lowest cooling pipe (802) located inside the L-shaped base (801) forms an oil passage cavity (803) between the bottom wall (8012) of the base (801) and the oil passage cavity (803) is connected to the first oil hole (501). The area where the cooling pipe (802) located below the L-shaped base (801) is located is connected to the oil groove (201) on the base (2).

2. The cooling system for a vertical thrust sliding bearing according to claim 1, characterized in that, The base frame (801) includes an annular outer wall (8011) and a bottom wall (8012). The bottom wall (8012) is located below the annular outer wall (8011), and the upper surface of the bottom wall (8012) has a raised rib plate (8013). After the cooling pipe (802) at the bottommost layer inside the oil-water cooler (8) comes into contact with the rib plate (8013), an oil passage cavity (803) is formed between the cooling pipe (802) and the bottom wall (8012). The base frame (801) is equipped with an inlet pipe (805) and an outlet pipe (806), and the two ends of the cooling pipe (802) are connected to the inlet pipe (805) and the outlet pipe (806) respectively.

3. The cooling system for a vertical thrust sliding bearing according to claim 2, characterized in that, The base frame (801) has a radially opened mounting hole (804). After a bolt is inserted into the mounting hole (804), the base frame (801) is connected to the guide bearing seat (5). The number of cooling pipes (802) is eight, and four layers are arranged along the axial direction of the base frame (801). Each layer of cooling pipes (802) has two layers. There are three layers inside the annular outer wall (8011) and one layer installed at the lower end of the bottom wall (8012).

4. The cooling system for a vertical thrust sliding bearing according to claim 1, characterized in that, It also includes an oil baffle (1), which is installed on the base (2) and extends into the interior of the thrust head (6). An oil passage gap (11) is formed between the outer wall of the oil baffle (1) and the inner wall of the center hole of the base (2), the inner wall of the axial thrust bearing (4) and part of the inner wall of the thrust head (6), so that the lubricating oil entering the oil groove (201) can enter the working area of ​​the axial thrust bearing (4) along the oil passage gap (11).

5. The cooling system for a vertical thrust sliding bearing according to claim 1, characterized in that, It also includes a partition (3) installed on the upper surface of the base (2) and used to separate the gap between two adjacent axial thrust bearings (4) from the oil groove (201).

6. The cooling system for a vertical thrust sliding bearing according to claim 4, characterized in that, The lower end of the thrust head (6) is provided with an oil outlet hole (601), and the guide bearing seat (5) is provided with a second oil hole (502) that is connected to the oil outlet hole (601) and is obliquely upward. The second oil hole (502) is located above the first oil hole (501), and the second oil hole (502) is connected to the internal space of the L-shaped base frame (801).

7. The cooling system for a vertical thrust sliding bearing according to claim 1, characterized in that, Also includes: The oil tank (9) is installed on the upper edge of the base (2), and the oil-water cooler (8), thrust head (6), axial thrust bearing (4), and guide bearing seat (5) are all located inside the oil tank (9). End cap (10), which is installed above the oil tank (9) and is coaxially arranged with the thrust head (6); The guide bearing (7) is located in the annular area between the end cap (10) and the thrust head (6).

8. The cooling system for a vertical thrust sliding bearing according to claim 7, characterized in that, The end cap (10) has a third oil hole (1001) in the circumferential direction. The third oil hole (1001) is configured to allow the lubricating oil in the oil tank (9) to flow into the working area of ​​the guide bearing (7).

9. The cooling system for a vertical thrust sliding bearing according to claim 8, characterized in that, An oil outlet channel (12) is formed between the stepped portion (602) of the thrust head (6) and the end cap (10). One end of the oil outlet channel (12) is connected to the working area of ​​the guide bearing (7), and the other end of the oil outlet channel (12) is connected to the internal space of the L-shaped base frame (801).

10. The cooling system for a vertical thrust sliding bearing according to claim 2, characterized in that, The base frame (801) is provided with a support assembly for limiting the cooling pipe (802); the support assembly includes a horizontal plate (8014) and a vertical plate (8015) connected to the annular outer wall (8011) and the bottom wall (8012) and arranged in a cross pattern. The horizontal plate (8014) and the vertical plate (8015) intersect to form a plurality of cavities (8016) for the cooling pipe (802) to pass through and for limiting the cooling pipe (802). The outer wall of the cooling pipe (802) is in contact with the four inner walls of the cavity (8016).

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