Novel sliding bearing structure

Abstract

The utility model discloses a novel sliding bearing structure, and relates to the technical field of bearing structures, the novel sliding bearing structure comprises a shaft, a sliding bearing, a sliding bearing thrust ring, a bearing seat and a bearing gland, the sliding bearing is rotatably arranged on the shaft, the bearing seat is rotatably arranged on the sliding bearing, the bearing gland is mounted on the bearing seat, and the sliding bearing thrust ring is mounted on the bearing seat. The sliding bearing thrust ring is installed on the shaft, a liquid supply inlet is formed in the bearing gland, a liquid supply outlet is formed in the bearing seat, and the liquid supply inlet is communicated with the liquid supply outlet. The sliding bearing has the effects that the heat dissipation effect of the sliding bearing is improved, the service life of the sliding shaft is prolonged, lubricating cooling liquid is prevented from entering a compressor to affect unit operation, and the stability and reliability of overall operation are improved.

Description

Technical Field

[0001] The present application relates to the technical field of bearing structures, and in particular to a novel sliding bearing structure. Background Art

[0002] As an important mechanical component, sliding bearings are widely used in various types of mechanical equipment, especially under high pressure, high temperature and high-speed operating conditions. The performance of sliding bearings directly affects the stability and service life of the equipment. Sliding bearings can not only effectively reduce the friction between rotating parts and improve transmission efficiency, but also buffer vibration to a certain extent and protect the equipment from damage.

[0003] Process compressors have a wide range of working conditions and complex media components. The existing compressor sliding bearings supply liquid directly into the compressor. When there are many impurities in the internal medium, the lubricating liquid supplied by the sliding bearings will chemically react with the internal medium and cause other adverse phenomena. When the internal medium temperature is high, such as water vapor, a large amount of low-temperature liquid supplied by the sliding bearings enters the main unit, which will absorb a lot of heat and affect the operation of the unit. Utility Model Content

[0004] In order to improve the problem that the internal medium contains more media, the lubricating fluid is easily contaminated, resulting in increased wear of the sliding bearing, the lubricating fluid and the internal medium undergo chemical reactions, which will further damage the sliding bearing structure, and temperature changes will also lead to a decrease in lubrication effect, causing internal failures and affecting the overall internal operation, the present application provides a new sliding bearing structure.

[0005] The present application provides a novel sliding bearing structure adopting the following technical solution:

[0006] A new type of sliding bearing structure includes a shaft, a sliding bearing, a sliding bearing thrust ring, a bearing seat and a bearing cover. The sliding bearing is rotatably arranged on the shaft, the bearing seat is rotatably arranged on the sliding bearing, the bearing cover is installed on the bearing seat, the sliding bearing thrust ring is installed on the shaft, a liquid supply inlet is provided on the bearing cover, a liquid supply outlet is provided on the bearing seat, and the liquid supply inlet and the liquid supply outlet are connected.

[0007] By adopting the above technical solution, the sliding bearings can be lubricated and cooled while preventing the lubricating coolant from directly entering the compressor, thereby reducing the adverse effects caused by internal medium impurities, chemical reactions and temperature differences, and improving the stability and reliability of the compressor operation.

[0008] Optionally, a gap is formed between the shaft and the bearing cover, and the gap is connected to the liquid supply inlet.

[0009] By adopting the above technical solution, the gap is connected to the liquid supply inlet, so that the lubricating coolant can smoothly enter the gap from the liquid supply inlet, effectively ensuring the supply of lubricating coolant, reducing the friction between the shaft and the bearing cover, improving the stability and reliability of the overall operation, reducing the overall operating temperature, and extending the service life of the equipment.

[0010] Optionally, a liquid channel is provided on the bearing seat, and the liquid channel is connected to the liquid supply outlet.

[0011] By adopting the above technical solution, the liquid channel is connected to the liquid supply outlet, so that the lubricating coolant can smoothly flow from the liquid supply inlet through the friction pair surface of the sliding bearing and the shaft, and the contact surface of the thrust ring and the sliding bearing, and finally be discharged through the liquid channel, thereby ensuring effective lubrication and heat dissipation of the sliding bearing, effectively preventing the lubricating coolant from directly entering the compressor, reducing the occurrence of problems caused by chemical reactions between the lubricating coolant and the internal medium or excessive temperature differences, and improving the stability and reliability of the compressor operation.

[0012] Optionally, a sealing static ring is further sleeved on the shaft, and the outer diameter of the sealing static ring abuts against the inner wall of the bearing seat.

[0013] By adopting the above technical solution, chemical reactions between the lubricating fluid and the internal medium are avoided, the influence of internal impurities is reduced, the stability and reliability of the system are improved, and the sealing static ring enhances the sealing effect, prevents lubricating fluid leakage, and ensures the efficient operation of the lubrication and cooling system.

[0014] Optionally, the direction of the liquid supply inlet is along the center line direction of the shaft, and the direction of the liquid supply outlet is perpendicular to the center line direction of the shaft.

[0015] By adopting the above technical solution, the inlet transmits the coolant in the axial direction, ensuring that the lubricating coolant can be evenly distributed on the friction pair surface of the sliding bearing and the shaft, improving the lubrication effect and reducing wear; the outlet is perpendicular to the axial direction, which is conducive to the rapid discharge of the lubricating coolant and avoids liquid accumulation, thereby reducing the heat accumulation caused by the retention of the lubricating coolant and improving the stability and reliability of operation.

[0016] Optionally, a gap is formed between the sliding bearing thrust ring and the bearing seat, and the gap is ring-shaped.

[0017] By adopting the above technical solution, the annular gap effectively reduces the direct contact area between the two, reduces friction resistance, and improves the working efficiency of the sliding bearing. The gap can also serve as a buffer area for the lubricating coolant, further optimizing the lubrication effect and ensuring the stability and reliability of the sliding bearing under special working conditions such as high temperature and high load.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. The lubricating coolant passes through the friction pair surface between the sliding bearing and the shaft, as well as the contact surface between the thrust ring and the sliding bearing, effectively taking away the heat generated by friction, improving the heat dissipation effect of the bearing and extending the service life of the bearing;

[0020] 2. The liquid channel allows the lubricating coolant to be discharged smoothly, preventing the lubricating liquid from accumulating in the bearing seat, reducing the thermal stress caused by the temperature change of the lubricating liquid, and improving the stability and reliability of the overall operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 It is a cross-sectional view showing the overall structure of this application.

[0023] Figure numerals: 1, shaft; 2, sliding bearing; 3, sliding bearing thrust ring; 4, bearing seat; 5, bearing cover; 6, liquid supply inlet; 7, liquid supply outlet; 8, sealing static ring; 9, liquid channel. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1 This application is described in further detail.

[0025] The embodiments of the present application disclose a novel sliding bearing structure.

[0026] Reference Figure 1 , mainly including shaft 1, sliding bearing 2, sliding bearing thrust ring 3, bearing seat 4 and bearing cover 5. Sliding bearing 2 is rotatably arranged on shaft 1, bearing seat 4 is rotatably arranged on sliding bearing 2, bearing cover 5 is mounted on bearing seat 4, sliding bearing thrust ring 3 is mounted on shaft 1, bearing cover 5 is provided with liquid supply inlet 6, and bearing seat 4 is provided with liquid supply outlet 7. Liquid supply inlet 6 and liquid supply outlet 7 are connected to prevent direct contact between lubricating liquid and internal medium, thereby avoiding affecting the normal operation of the compressor due to chemical reaction and heat exchange.

[0027] See also Figure 1As shown, a gap is formed between the shaft 1 and the bearing cover 5, and the gap is connected to the liquid supply inlet 6. The lubricating coolant smoothly enters the gap from the liquid supply inlet 6, ensuring the supply of lubricating coolant, reducing friction between the shaft 1 and the bearing cover 5, improving the stability and reliability of the overall operation, and reducing the temperature of the overall operation, thereby extending the service life of the equipment. A liquid channel 9 is opened on the bearing seat 4, and the liquid channel 9 is connected to the liquid supply outlet 7. The lubricating coolant smoothly flows from the liquid supply inlet 6 through the friction pair surface of the sliding bearing 2 and the shaft 1, and the contact surface between the sliding bearing thrust ring 3 and the sliding bearing 2, and is finally discharged through the liquid channel 9. This ensures effective lubrication and heat dissipation of the sliding bearing 2, prevents the lubricating coolant from directly entering the compressor, reduces the occurrence of problems caused by chemical reactions between the lubricating coolant and the internal medium or excessive temperature differences, and improves the stability and reliability of the compressor operation.

[0028] See also Figure 1 As shown, a sealing static ring 8 is also sleeved on the shaft 1, and the outer diameter of the sealing static ring 8 is against the inner wall of the bearing seat 4; this avoids chemical reaction between the lubricating fluid and the internal medium, reduces the influence of internal impurities, and improves the stability and reliability of the system. The sealing static ring 8 enhances the sealing effect, prevents lubricating fluid leakage, and ensures the efficient operation of the lubrication and cooling system.

[0029] See also Figure 1 As shown, the direction of the liquid supply inlet 6 is along the center line direction of the shaft 1, and the direction of the liquid supply outlet 7 is perpendicular to the center line direction of the shaft 1; the liquid supply inlet 6 transmits the coolant along the axis 1, and the lubricating coolant can be evenly distributed to the friction pair surface of the sliding bearing 2 and the shaft 1, thereby improving the lubrication effect and reducing internal wear; the liquid supply outlet 7 is perpendicular to the axis 1, which is conducive to the rapid discharge of the lubricating coolant and avoids liquid accumulation, thereby reducing the heat accumulation caused by the retention of the lubricating coolant and improving the stability and reliability of the operation.

[0030] The gap between the sliding bearing thrust ring 3 and the bearing seat 4 is in a ring shape, which helps to evenly distribute the lubricating fluid and effectively prevent the infiltration of internal media. The size of the gap can be adjusted according to actual working conditions to meet different lubrication requirements.

[0031] By introducing the lubricating liquid from the liquid supply inlet 6, passing through the friction pair surface of the sliding bearing 2 and the shaft 1, then through the contact surface of the thrust ring and the sliding bearing 2, reaching the sealing surface of the sealing static ring 8, and finally being discharged through the liquid channel 9 in the bearing seat 4, direct contact between the lubricating liquid and the internal medium is isolated, thereby avoiding the negative effects of chemical reactions and heat exchange, improving the stability and reliability of the sliding bearing 2, and extending the service life of the equipment.

[0032] In the embodiment, an auxiliary sealing structure (not shown in the drawings) is further added to further enhance the isolation effect between the lubricating fluid and the internal medium. The auxiliary sealing structure can adopt various types, such as mechanical seal, magnetic seal or lip seal, and the appropriate sealing method is selected according to different working conditions.

[0033] The implementation principle of a new sliding bearing 2 structure in an embodiment of the present application is as follows: the lubricating coolant enters from the liquid supply inlet 6, passes through the friction pair surface of the sliding bearing 2 and the shaft 1, and then passes through the contact surface between the sliding bearing 2 push ring and the sliding shaft 1, effectively taking away the heat generated by friction, thereby improving the heat dissipation effect of the sliding bearing 2 and extending the service life of the sliding bearing 2, reaching the sealing surface of the sealing static ring 8, and finally passing through the liquid channel 9 in the bearing seat 4 to be discharged through the liquid supply outlet 7. The liquid channel 9 allows the lubricating coolant to be discharged smoothly, thereby preventing the lubricating liquid from accumulating in the bearing seat 4, reducing the thermal stress caused by the temperature change of the lubricating liquid, and improving the stability and reliability of the overall operation.

[0034] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words “first”, “second”, “third” and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as “a” or “an” and the like do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as “include” or “comprise” and the like mean that the elements or objects appearing before “include” or “comprises” cover the elements or objects listed after “include” or “comprises” and their equivalents, and do not exclude other elements or objects. “Up”, “down”, “left”, “right” and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

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

Claims

1. A new sliding bearing structure, characterized by: The invention comprises a shaft (1), a sliding bearing (2), a sliding bearing thrust ring (3), a bearing seat (4) and a bearing pressure cover (5), wherein the sliding bearing (2) is rotatably arranged on the shaft (1), the bearing seat (4) is rotatably arranged on the sliding bearing (2), the bearing pressure cover (5) is mounted on the bearing seat (4), the sliding bearing thrust ring (3) is mounted on the shaft (1), a liquid supply inlet (6) is provided on the bearing pressure cover (5), a liquid supply outlet (7) is provided on the bearing seat (4), and the liquid supply inlet (6) and the liquid supply outlet (7) are connected.

2. A novel sliding bearing structure according to claim 1, characterized in that: A gap is formed between the shaft (1) and the bearing cover (5), and the gap is connected to the liquid supply inlet (6).

3. A novel sliding bearing structure according to claim 1, characterized in that: A liquid channel (9) is provided on the bearing seat (4), and the liquid channel (9) is communicated with the liquid supply outlet (7).

4. A novel sliding bearing structure according to claim 1, characterized in that: The shaft (1) is also sleeved with a static sealing ring (8), and the outer diameter of the static sealing ring (8) abuts against the inner wall of the bearing seat (4).

5. The novel sliding bearing structure according to claim 1, characterized in that: The direction of the liquid supply inlet (6) is along the center line direction of the shaft (1), and the direction of the liquid supply outlet (7) is perpendicular to the center line direction of the shaft (1).

6. The novel sliding bearing structure according to claim 1, characterized in that: A gap is formed between the sliding bearing thrust ring (3) and the bearing seat (4), and the gap is in a ring shape.

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