Oil supply system of rolling bearing compressor with oil film damping shock absorber

Abstract

The utility model belongs to the technical field of compressor auxiliary equipment, and particularly relates to an oil supply system of a rolling bearing oil film damping shock absorber compressor, which comprises a shell and three groups of oil supply pipelines arranged at the top end of the shell, respectively supplying power to a rolling bearing far away from the impeller side, a rolling bearing close to the impeller side and an extrusion oil film damping shock absorber; and the oil tank is positioned in the shell and is respectively communicated with the three groups of oil supply pipelines. The oil supply pipelines are divided into three groups for supplying oil to the rolling bearing far away from the impeller side, the rolling bearing close to the impeller side and the extrusion oil film damping shock absorber correspondingly, multi-flow-direction oil supply is achieved, the requirements of different parts for lubricating oil are met, meanwhile, the overflow valves, the pressure reducing valves and the throttling valves are connected to the oil supply pipelines, and the oil supply efficiency is improved. Accurate control over oil supply pressure and flow is achieved, damage to the bearing seat caused by too high pressure is prevented, and stable supply of lubricating oil is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of compressor auxiliary equipment, and particularly relates to an oil supply system of a rolling bearing oil film damping shock absorber compressor. BACKGROUND

[0002] When the rotating speed of the compressor is high, the rotor becomes a flexible rotor due to the centrifugal force, which causes relatively large vibration when passing through the critical speed. In order to reduce the vibration, an extrusion oil film damping shock absorbing device needs to be installed on the rolling bearing close to the impeller side. However, the existing oil supply system is mostly single flow direction, which cannot meet the demand of the oil supply system under such complex working conditions, especially under high rotating speed and high vibration conditions, and a more efficient and stable oil supply system is needed to ensure the normal operation of the compressor and prolong the service life of the compressor. CONTENT OF THE UTILITY MODEL

[0003] The application aims at the defects of the prior art, and designs an oil supply system of a rolling bearing oil film damping shock absorber compressor in a three-oil-pipeline mode, so that multi-flow direction oil supply is realized and the demand of different parts for lubricating oil is met.

[0004] In order to achieve the above-mentioned purpose, the application adopts the technical scheme of:

[0005] An oil supply system of a rolling bearing oil film damping shock absorber compressor, comprising a shell, further comprising: an oil supply pipeline installed at the top end of the shell, the oil supply pipeline is divided into three groups and is used to supply the rolling bearing far away from the impeller side, the rolling bearing close to the impeller side and the extrusion oil film damping shock absorber; an oil tank located in the interior of the shell, the oil tank is in communication with the three groups of oil supply pipelines respectively; and a water cooler installed on the exterior side of the shell, the water cooler is used to cool the rolling bearing.

[0006] Preferably, a filter is arranged between the oil tank and the oil supply pipeline, and the filter is installed at the top end of the shell.

[0007] Preferably, the oil supply pipeline comprises three groups of outlet connecting seats located on a straight line and in sequence communication, one group of outlet connecting seats on the outer side is connected with the filter, oil supply pipelines are connected to the three groups of outlet connecting seats, and the three groups of outlet connecting seats are installed on the shell.

[0008] Preferably, an overflow valve, a pressure reducing valve and a throttle valve are connected in sequence to the oil supply pipeline on the outlet connecting seat close to the filter, and the overflow valve is connected with the oil tank through an oil pipe.

[0009] Preferably, a pressure reducing valve and a throttle valve are connected in sequence to the oil supply pipeline on each of the two outlet connecting seats far away from the filter.

[0010] Preferably, the pressure reducing valves are connected to the oil return pipe, and the throttle valves supply oil to the rolling bearing away from the impeller side, the rolling bearing close to the impeller side and the squeeze oil film damping shock absorber through the oil pipe.

[0011] Preferably, the top end of the shell is further provided with a motor pump group for conveying.

[0012] Preferably, the top end of the shell is provided with an oil inlet and an oil viewing port corresponding to the oil tank.

[0013] Preferably, the bottom of the shell side wall is provided with a slag discharge pump connected to the oil tank.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. The present application divides the oil supply pipeline into three groups, respectively supplying the rolling bearing away from the impeller side, the rolling bearing close to the impeller side and the squeeze oil film damping shock absorber, realizing multi-flow oil supply and meeting the demand of different parts for lubricating oil;

[0016] 2. The present application sets a filter between the oil tank and the oil supply pipeline, which can effectively filter impurities in the lubricating oil, protect the actuator from damage and prolong the service life of the equipment;

[0017] 3. The present application connects the overflow valve, the pressure reducing valve and the throttle valve in sequence on the oil supply pipeline, realizing accurate control of oil supply pressure and flow, preventing damage to the bearing seat caused by excessive pressure, and ensuring stable supply of lubricating oil;

[0018] 4. The present application installs a water cooler outside the shell, which cools the rolling bearing, improves the heat dissipation effect of the rolling bearing and helps to prolong the service life of the rolling bearing. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the front view of the present application.

[0020] Figure 2 is the side view of the present application.

[0021] Figure 3 is the top view of the present application.

[0022] Figure 4 is the pipeline connection diagram of the present application.

[0023] The components include: 1. Motor pump set; 2. Oil tank; 3. Power connector; 4. Slag discharge pump; 5. Housing; 6. Water cooler; 7. Liquid level sensor; 8. Filter; 9. Oil pipe connection port; 10. Connector; 11. Throttle valve; 12. Overflow valve; 13. Return oil pipe; 14. Outlet connection seat; 15. Pressure reducing valve; 16. Pressure gauge; 17. Oil inlet; 18. Oil observation port. Detailed Implementation

[0024] like Figures 1-3 As shown, an oil supply system for a compressor with a rolling bearing and an oil film damping shock absorber includes a housing 5, an oil supply pipeline installed at the top of the housing 5, an oil tank 2 located inside the housing 5, and a water cooler 6 installed outside the housing 5.

[0025] A filter 8 is installed between the oil tank 2 and the oil supply line. The filter 8 is installed on the top of the housing 5 by bolts. The filter 8 is used to filter the lubricating oil and prevent impurities from entering the actuator.

[0026] The oil supply pipeline includes three sets of outlet connectors 14 located in a straight line and connected in sequence. The outer set of outlet connectors 14 is connected to the filter 8. Each of the three sets of outlet connectors 14 is connected to an oil supply pipe, and each of the three sets of outlet connectors 14 is bolted to the housing 5. The oil supply pipe on the outlet connector 14 closest to the filter 8 is connected in sequence to an overflow valve 12, a pressure reducing valve 15, and a throttle valve 11. The overflow valve 12 is connected to the oil tank 2 through an oil pipe. The oil supply pipes on the two outlet connectors 14 furthest from the filter 8 are connected in sequence to a pressure reducing valve 15 and a throttle valve 11.

[0027] The pressure reducing valves 15 are all connected to the return oil pipe 13 through the oil pipe connection port 9. The pressure reducing valves 15 are stacked pressure reducing valves, which are used to limit the oil supply pressure and prevent excessive pressure from damaging the bearing housing. The throttle valve 11 supplies oil to the rolling bearings away from the impeller side, the rolling bearings close to the impeller side, and the squeeze oil film damping shock absorber through the connector 10 and the oil pipe. The throttle valve 11 is a stacked throttle valve, which is used to regulate the flow rate.

[0028] As a preferred embodiment, a motor pump unit 1 for conveying is installed at the top of the housing 5. An oil inlet 17 and an oil viewing port 18 are provided at the top of the housing 5 corresponding to the oil tank 2. The oil tank 2 is connected to three sets of oil supply pipelines. A slag discharge pump 4 connected to the oil tank 2 is provided at the bottom of the side wall of the housing 5. The slag discharge pump 4 is used to discharge waste oil and impurities in the oil tank 2.

[0029] Water cooler 6 uses a commercially available conventional water cooler to cool the rolling bearing.

[0030] like Figure 4As shown, in the present application, the pipeline specifically includes as follows: P1 (oil tank 2 to motor pump set 1), P2 (motor pump set 1 to filter 8), P3 (filter 8 to outlet connecting seat 14), P4-P9 (outlet connecting seat 14 to actuator A, B, C), T1-T3 (pressure reducing valve 15 to oil return pipe 13) and Tback (actuator A, B, C to oil tank 2).

Claims

1. An oil supply system for a rolling bearing oil-film damping shock absorber compressor comprising a casing (5), characterized in that, Also include: The oil supply pipeline is installed at the top end of the shell (5), which is divided into three groups, respectively, to supply the rolling bearing away from the impeller side, the rolling bearing close to the impeller side and the extrusion oil film damping shock absorber; The oil tank (2) is located inside the shell (5), and the oil tank (2) is connected with the three groups of oil supply pipeline respectively; The water cooler (6) is installed on the outside of the shell (5), which is used to cool the rolling bearing.

2. The oil supply system of a rolling bearing belt oil film damping shock absorber compressor according to claim 1, characterized in that: The filter (8) is provided between the oil tank (2) and the oil supply pipeline, and the filter (8) is installed at the top end of the shell (5).

3. The oil supply system of a rolling bearing belt oil film damping shock absorber compressor according to claim 2, characterized in that: The oil supply pipeline includes three groups of outlet connecting seats (14) located on a straight line and connected in turn, one group of outlet connecting seats (14) is connected with the filter (8), the three groups of outlet connecting seats (14) are connected with the oil supply pipeline, and the three groups of outlet connecting seats (14) are installed on the shell (5).

4. The oil supply system of a rolling bearing belt oil film damping shock absorber compressor according to claim 3, characterized in that: The oil supply pipeline on the outlet connecting seat (14) close to the filter (8) is connected with overflow valve (12), pressure reducing valve (15) and throttle valve (11) in turn, and the overflow valve (12) is connected with the oil tank (2) through the oil pipe.

5. The oil supply system of a rolling bearing belt oil film damping shock absorber compressor according to claim 4, characterized in that: The oil supply pipeline on the two outlet connecting seats (14) away from the filter (8) is connected with pressure reducing valve (15) and throttle valve (11) in turn.

6. An oil supply system for a rolling-element bearing oil-film-damped shock absorber compressor according to claim 5, characterized in that: The pressure reducing valve (15) is connected with the oil return pipe (13), and the throttle valve (11) supplies oil to the rolling bearing away from the impeller side, the rolling bearing close to the impeller side and the extrusion oil film damping shock absorber through the oil pipe.

7. An oil supply system for a rolling-element bearing oil-film-damped shock absorber compressor according to claim 1, characterized in that: The motor pump group (1) for conveying is installed at the top end of the shell (5).

8. An oil supply system for a rolling-element bearing oil-film-damped shock absorber compressor according to claim 1, characterized in that: The oil inlet (17) and the oil observation port (18) are arranged at the corresponding position of the oil tank (2) at the top end of the shell (5).

9. An oil supply system for a rolling-element bearing oil-film-damped shock absorber compressor according to claim 1, characterized in that: The shell (5) is provided with a deslagging pump (4) connected with the oil tank (2) at the bottom of the side wall.

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