High-speed hybrid bearing with sealing ring cooling structure

Abstract

The utility model belongs to the technical field of bearings, and particularly discloses a high-speed hybrid bearing with a sealing ring cooling structure. The bearing comprises a bearing body, the bearing body comprises an outer ring and an inner ring, a cooling assembly is arranged in the bearing body, and a sealing ring is arranged on one side of the inner ring; the cooling assembly comprises a first liquid storage cavity and a second liquid storage cavity, the interior of the bearing body can be rapidly cooled through cooling liquid, heat generated when the bearing body works can be effectively reduced in time, adverse effects on the performance and the service life of the bearing body due to too high temperature are avoided, and stable and reliable operation of the bearing body is kept; a comprehensive cooling effect can be achieved through distribution of cooling liquid in the cavities and the channels, so that the temperature of the whole bearing body is uniform, local overheating is avoided, the working efficiency and the power density of the bearing can be improved through the mode, the bearing can adapt to the working condition of higher load, and the service life of the bearing is prolonged. Therefore, the service life of the bearing body is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of bearings, and more specifically, to a high-speed dynamic and static pressure bearing with a sealing ring cooling structure. Background Art

[0002] A hydrostatic bearing is a sliding bearing that can work under both hydrostatic lubrication and hydrodynamic lubrication. Its structural features include a certain initial clearance, multiple hydrostatic cavities, no relative speed between the shaft surface and the bearing surface, no eccentricity during operation, an oil supply device, and a part (usually a throttle) that can automatically adjust the pressure difference between the oil chambers.

[0003] Existing dynamic and static pressure bearings will generate a lot of heat due to friction when working for a long time, which will cause the internal temperature of the dynamic and static pressure bearings to continue to rise, exceeding the limit temperature that they can withstand, and accelerate the wear and fatigue of the dynamic and static pressure bearings, causing the dynamic and static pressure bearings to deform, soften or even be damaged, greatly shortening their service life. Utility Model Content

[0004] In order to solve the above problems, the present application provides a high-speed dynamic and static pressure bearing with a sealing ring cooling structure.

[0005] The high-speed dynamic and static pressure bearing with a sealing ring cooling structure provided in the present application adopts the following technical solution:

[0006] A high-speed dynamic and static pressure bearing with a sealing ring cooling structure comprises a bearing body, the bearing body comprises an outer ring and an inner ring, a cooling assembly is arranged inside the bearing body, and a sealing ring is arranged on one side of the inner ring;

[0007] The cooling assembly includes a first liquid storage cavity and a second liquid storage cavity. Liquid injection holes are opened on both sides of the inner wall of the inner ring. The two liquid injection holes are connected to the first liquid storage cavity. The liquid injection holes, the first liquid storage cavity and the second liquid storage cavity can cool the interior of the bearing body.

[0008] Furthermore, a first opening is provided between the first liquid storage chamber and the second liquid storage chamber, and the number of the first openings is set to be multiple, and the multiple first openings are distributed in a circular array along the axis of the bearing body, and both ends of each first opening are connected to the first liquid storage chamber and the second liquid storage chamber.

[0009] Furthermore, a second opening is opened inside the bearing body, and the number of the second openings is set to be multiple. The multiple second openings are distributed in a circular array along the axis of the bearing body, one end of each second opening is connected to the second liquid storage chamber, and the multiple first openings and the multiple second openings are staggered.

[0010] Furthermore, first sealing plugs are fixedly connected to both sides of the sealing ring, and each first sealing plug matches the two liquid injection holes.

[0011] Furthermore, the outer wall of each first sealing plug is provided with convex patterns, and the inner wall of each injection hole is provided with concave patterns, and each convex pattern matches with the corresponding concave pattern.

[0012] Through the above technical solution, the interior of the bearing body can be quickly cooled by the coolant, and the heat generated by the bearing body during operation can be timely and effectively reduced.

[0013] Furthermore, a ventilation hole is opened on one side of the bearing body, and the number of the ventilation holes is set to be multiple, and the multiple ventilation holes are arranged corresponding to the multiple first openings, and each ventilation hole is respectively connected to the corresponding first opening.

[0014] Furthermore, a second sealing plug is inserted into the interior of each ventilation hole, and a friction block is provided on an outer wall of one side of each second sealing plug.

[0015] Furthermore, each friction block matches the inner wall of the corresponding ventilation hole, and a pull ring is fixedly connected to one side of each second sealing plug.

[0016] Through the above technical solution, the temperature inside the bearing body can be effectively reduced through the ventilation holes.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] (1) The utility model can quickly cool down the inside of the bearing body through the coolant, and can timely and effectively reduce the heat generated by the bearing body during operation, avoid the adverse effects of excessive temperature on the performance and life of the bearing body, and maintain its stable and reliable operation. The distribution of the coolant in each chamber and channel can achieve a more comprehensive cooling effect, so that the temperature of the entire bearing body is more uniform, avoiding local overheating, and in this way can improve the working efficiency and power density of the bearing, so that it can adapt to higher load working conditions, thereby extending the service life of the bearing body;

[0019] (2) The utility model can effectively reduce the temperature inside the bearing body through the ventilation holes, avoid the adverse effects of high temperature on the performance and life of the bearing body, and keep the bearing body working stably under a suitable temperature environment. The flow of wind can accelerate the heat dissipation rate and improve the cooling efficiency. Through wind cooling, the temperature distribution inside the bearing body can be more uniform, reducing local overheating. It can also reduce the accumulation of dust and other impurities inside the bearing to a certain extent, keep the internal environment relatively clean, and help to extend the service life of the bearing and ensure its performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a cross-sectional view of the internal structure of the bearing body of the utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of the bearing body and the sealing ring of the utility model;

[0023] Figure 4 For this utility model Figure 3 A magnified view of the structure at A;

[0024] Figure 5 For this utility model Figure 3 Enlarged view of the structure at B.

[0025] Explanation of the accompanying drawings: 1. bearing body; 2. sealing ring; 3. outer ring; 4. inner ring; 5. liquid injection hole; 6. first liquid storage chamber; 7. first opening; 8. second liquid storage chamber; 9. second opening; 10. first sealing plug; 11. embossing; 12. groove; 13. ventilation hole; 14. second sealing plug; 15. friction block; 16. pull ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0027] Reference Figure 1-Figure 5 A high-speed dynamic and static pressure bearing with a sealing ring cooling structure comprises a bearing body 1, the bearing body 1 comprises an outer ring 3 and an inner ring 4, a cooling assembly is arranged inside the bearing body 1, and a sealing ring 2 is arranged on one side of the inner ring 4;

[0028] The cooling assembly includes a first liquid storage cavity 6 and a second liquid storage cavity 8. Liquid injection holes 5 are provided on both sides of the inner wall of the inner ring 4. The two liquid injection holes 5 are connected to the first liquid storage cavity 6. The liquid injection holes 5, the first liquid storage cavity 6 and the second liquid storage cavity 8 can cool the interior of the bearing body 1.

[0029] Reference Figure 2A first opening 7 is provided between the first liquid storage chamber 6 and the second liquid storage chamber 8. The number of the first openings 7 is set to be multiple, and the multiple first openings 7 are distributed in a ring array along the axis of the bearing body 1. Both ends of each first opening 7 are connected with the first liquid storage chamber 6 and the second liquid storage chamber 8. A second opening 9 is opened inside the bearing body 1. The number of the second openings 9 is set to be multiple, and the multiple second openings 9 are distributed in a ring array along the axis of the bearing body 1. One end of each second opening 9 is connected with the second liquid storage chamber 8. The multiple first openings 7 and the multiple second openings 9 are staggered. First sealing plugs 10 are fixedly connected to both sides of the sealing ring 2, and each first sealing plug 10 matches the two injection holes 5.

[0030] The bearing body 1 can be quickly cooled down by the cooling assembly. The specific operation method is: first remove the sealing ring 2, inject coolant into the interior of the bearing body 1 through the two injection holes 5, and then block the injection hole 5 with the first sealing plug 10. When the bearing body 1 rotates, the coolant inside the bearing body 1 will spread throughout the first liquid storage chamber 6, the second liquid storage chamber 8, multiple first openings 7 and multiple second openings 9. The coolant can quickly cool down the interior of the bearing body 1, and can timely and effectively reduce the heat generated by the bearing body 1 during operation, avoid excessive temperature from having an adverse effect on the performance and life of the bearing body 1, and maintain its stable and reliable operation. The distribution of the coolant in each chamber and channel can achieve a more comprehensive cooling effect, so that the temperature of the entire bearing body 1 is more uniform, avoiding local overheating, and in this way The working efficiency and power density of the bearing can be improved, so that it can adapt to higher load working conditions, thereby extending the service life of the bearing body 1.

[0031] Reference Figure 4 The outer wall of each first sealing plug 10 is provided with a convex pattern 11, and the inner wall of each injection hole 5 is provided with a groove 12. Each convex pattern 11 matches with the corresponding groove 12, and the sealing of the bearing body 1 can be ensured by the groove 12 and the convex pattern 11.

[0032] Reference Figure 1-Figure 4 A ventilation hole 13 is opened on one side of the bearing body 1, and the number of ventilation holes 13 is set to be multiple. The multiple ventilation holes 13 are arranged corresponding to the multiple first through ports 7. Each ventilation hole 13 is respectively connected to the corresponding first through port 7. A second sealing plug 14 is inserted into the interior of each ventilation hole 13. A friction block 15 is provided on the outer wall of one side of each second sealing plug 14. Each friction block 15 matches the inner wall of the corresponding ventilation hole 13. A pull ring 16 is fixedly connected to one side of each second sealing plug 14.

[0033] The setting of the ventilation holes 13 can cool the interior of the bearing body 1 through wind. Specifically, when cooling the interior of the bearing body 1, the multiple second sealing plugs 14 are taken out, and the bearing body 1 is placed in a ventilated environment. The wind will penetrate the interior of the bearing body 1, so that the interior of the bearing body 1 is in a ventilated state. This can effectively reduce the temperature inside the bearing body 1, avoid high temperature from causing adverse effects on the performance and life of the bearing body 1, and keep the bearing body 1 working stably under a suitable temperature environment. The flow of wind can accelerate the heat dissipation rate and improve the cooling efficiency. Compared with some other cooling methods, it may be more direct and faster. Through wind cooling, the temperature distribution inside the bearing body 1 can be more uniform, reducing local overheating. It can also reduce the accumulation of impurities such as dust inside the bearing to a certain extent, keep the internal environment relatively clean, and help to extend the service life of the bearing and ensure its performance.

[0034] Working principle: When cooling the bearing body 1, first remove the sealing ring 2, inject coolant into the interior of the bearing body 1 through the two injection holes 5, and then block the injection hole 5 with the first sealing plug 10. When the bearing body 1 rotates, the coolant inside the bearing body 1 will spread throughout the first liquid storage chamber 6, the second liquid storage chamber 8, multiple first openings 7 and multiple second openings 9. The distribution of the coolant in each chamber and channel can achieve a more comprehensive cooling effect, so that the temperature of the entire bearing body 1 is more uniform.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-speed dynamic and static pressure bearing with a sealing ring cooling structure, comprising a bearing body (1), characterized in that: The bearing body (1) comprises an outer ring (3) and an inner ring (4); a cooling assembly is provided inside the bearing body (1); and a sealing ring (2) is provided on one side of the inner ring (4); The cooling component comprises a first liquid storage cavity (6) and a second liquid storage cavity (8), and injection holes (5) are provided on both sides of the inner wall of the inner ring (4), and the two injection holes (5) are both connected to the first liquid storage cavity (6). The injection holes (5), the first liquid storage cavity (6) and the second liquid storage cavity (8) can cool down the interior of the bearing body (1).

2. A high-speed dynamic and static pressure bearing with a sealing ring cooling structure according to claim 1, characterized in that: A first opening (7) is provided between the first liquid storage cavity (6) and the second liquid storage cavity (8), the number of the first openings (7) is set to be multiple, the multiple first openings (7) are distributed in a ring array along the axis of the bearing body (1), and both ends of each first opening (7) are connected to the first liquid storage cavity (6) and the second liquid storage cavity (8).

3. A high-speed dynamic and static pressure bearing with a sealing ring cooling structure according to claim 2, characterized in that: The bearing body (1) is provided with a second opening (9) inside, the number of the second openings (9) is set to be multiple, the multiple second openings (9) are distributed in a ring array along the axis of the bearing body (1), one end of each second opening (9) is connected to the second liquid storage chamber (8), and the multiple first openings (7) and the multiple second openings (9) are staggered.

4. The high-speed dynamic and static pressure bearing with a sealing ring cooling structure according to claim 1, characterized in that: First sealing plugs (10) are fixedly connected to both sides of the sealing ring (2), and each of the first sealing plugs (10) matches two liquid injection holes (5).

5. The high-speed dynamic and static pressure bearing with a sealing ring cooling structure according to claim 4, characterized in that: The outer wall of each of the first sealing plugs (10) is provided with a convex pattern (11), the inner wall of each of the injection holes (5) is provided with a concave pattern (12), and each of the convex patterns (11) matches with a corresponding concave pattern (12).

6. The high-speed dynamic and static pressure bearing with a sealing ring cooling structure according to claim 1, characterized in that: A ventilation hole (13) is provided on one side of the bearing body (1), the number of the ventilation holes (13) is set to be multiple, the multiple ventilation holes (13) are arranged corresponding to the multiple first through openings (7), and each ventilation hole (13) is respectively connected to the corresponding first through opening (7).

7. A high-speed dynamic and static pressure bearing with a sealing ring cooling structure according to claim 6, characterized in that: A second sealing plug (14) is inserted into the interior of each ventilation hole (13), and a friction block (15) is provided on one side outer wall of each second sealing plug (14).

8. The high-speed dynamic and static pressure bearing with a sealing ring cooling structure according to claim 7, characterized in that: Each of the friction blocks (15) matches the inner wall of the corresponding ventilation hole (13), and one side of each of the second sealing plugs (14) is fixedly connected to a pull ring (16).

Images