An apparatus having a high efficiency lubricated bearing

Abstract

The application relates to the technical field of bearing lubrication, in particular to a device with high-efficiency lubricated bearings, which comprises a machine base, a sliding bearing oil outlet, a sliding bearing oil inlet, an inner bearing oil inlet, an oil return cavity, an inner bearing oil outlet, a sliding bearing, an inner bearing, an outer rotor, an inner rotor, an oil inlet oil circuit and an oil outlet oil circuit. The inner and outer bearings of the device share an oil circuit, the inner bearing lubricating oil is supplied through the pressure oil of the outer bearing, when the outer rotor rotates, the oil is returned to the oil return cavity through the pressure during oil inlet and the centrifugal force of the lubricating oil in the oil outlet circuit, the reciprocating oil makes the bearings well lubricated, prolongs the service life of the bearings, the circulating oil lubricated bearings do not need to be stopped for oiling, the circulating oil lubricated bearings make the working temperature of the bearings relatively stable during operation, and the circulating oil lubricated bearings reduce the maintenance of the equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing lubrication, in particular to a device with high-efficiency lubricated bearing. BACKGROUND

[0002] In the industrial field, the rotating body is mainly rotated by bearings. Bearings are important parts in modern mechanical equipment, mainly used to determine the relative movement position of rotating shafts and other parts, and are used as supporting or guiding parts. The main function is to support the mechanical rotating body to reduce the mechanical load friction coefficient of the equipment in the transmission process. According to the different friction properties of the moving element, bearings can be divided into rolling bearings and sliding bearings.

[0003] The bearing cannot be used without lubrication. The lubricating liquid in the current sliding bearing can only lubricate the local part alone, and the functionality is very single, which directly affects the service life of the bearing regardless of the lubricating medium. SUMMARY

[0004] The technical problem to be solved by the present application is to solve the problems existing in the background art and provide an improved device with high-efficiency lubricated bearing to solve the problems existing in the background art.

[0005] The technical scheme adopted by the present application to solve the technical problem is: a device with high-efficiency lubricated bearing, comprising a base, a sliding bearing oil outlet, a sliding bearing oil inlet, an inner bearing oil inlet, an oil return cavity, an inner bearing oil outlet, a sliding bearing, an inner bearing, an outer rotor, an inner rotor, an oil inlet oil path and an oil outlet oil path, the outer rotor is fixed on the base, and the inner rotor is fixed on the outer rotor through the bearing, the outer rotor is provided with an input shaft, an inner bearing oil inlet, an oil inlet oil path, an inner bearing oil outlet and an oil outlet oil path, and the inner rotor is provided with an output shaft.

[0006] The sliding bearing oil inlet is connected with the inner bearing oil inlet through the first flow channel in the sliding bearing.

[0007] An internal transmission groove matched with the inner bearing is formed on the shaft of the outer rotor (9) between the inner bearing oil inlet and the inner bearing oil outlet, and the inner bearing oil inlet and the inner bearing oil outlet are connected through the internal transmission groove.

[0008] The oil outlet oil path is a gradually-higher inclined oil outlet channel from inside to outside, the inner bearing oil outlet is a gradually-higher inclined oil discharge hole from inside to outside, the outer side opening of the inner bearing oil outlet is connected with the inner part of the oil return cavity, and the bottom of the oil return cavity is connected with the sliding bearing oil outlet through the second flow channel in the sliding bearing.

[0009] The inner bearing oil outlet is circular in internal section, and the inner bearing oil inlet and the inner bearing oil outlet are arranged in an annular array at the periphery of the inner bearing.

[0010] The input shaft and the output shaft are similar in size and structure.

[0011] The present application has the following advantages:

[0012] (1) The device with high-efficiency lubricated bearing of the present application uses the oil circuit shared by the inner and outer bearings for lubricating the two rotors, and the lubricating oil of the inner bearing is supplied by the pressure oil of the outer bearing. When the outer rotor rotates, the oil is returned to the oil return cavity through the pressure difference of the oil outlet and the pressure of the oil inlet, and the reciprocating circulating oil can well lubricate the bearing and prolong the service life of the bearing.

[0013] (2) The circulating oil lubricated bearing does not need to stop for oiling;

[0014] (3) The circulating oil lubrication makes the working temperature of the bearing relatively stable during operation;

[0015] (4) The circulating oil lubricated bearing reduces the maintenance of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described below in combination with the drawings and examples.

[0017] Figure 1 is a structural schematic view of the present application.

[0018] Figure 2 is an internal sectional view of the outer rotor in the present application.

[0019] Figure 3 is a sectional view of the inner bearing oil inlet position in the present application.

[0020] Figure 4 is a sectional view of the inner bearing oil outlet position in the present application.

[0021] Figure 5 is a structural schematic view of the inner rotor in the present application. DETAILED DESCRIPTION

[0022] The present application will be further described below in combination with the drawings and examples.

[0023] Figure 1 and Figure 5The device with high-efficiency lubricated bearing shown in the figure comprises a base 1, a sliding bearing oil outlet 2, a sliding bearing oil inlet 3, an inner bearing oil inlet 4, an oil return cavity 5, an inner bearing oil outlet 6, a sliding bearing 7, an inner bearing 8, an outer rotor 9, an inner rotor 10, an oil inlet oil path 11 and an oil outlet oil path 12. The outer rotor 9 is fixed on the base 1, and the inner rotor 10 is fixed on the outer rotor 9 through a bearing. The outer rotor 9 is provided with an input shaft 91, the inner bearing oil inlet 4 and the inner bearing oil outlet 6. The inner rotor 10 is provided with an output shaft 101.

[0024] The input shaft 91 and the output shaft 101 have the same structure and can be replaced with each other as needed.

[0025] The sliding bearing oil inlet 3 is connected with the inner bearing oil inlet 4 through a first flow channel in the sliding bearing 7.

[0026] An internal transmission groove 81 matched with the inner bearing 8 is formed on the rotating shaft of the outer rotor 9 between the inner bearing oil inlet 4 and the inner bearing oil outlet 6. The inner bearing oil inlet 4 and the inner bearing oil outlet 6 are connected through the internal transmission groove 81.

[0027] The inner bearing oil outlet 6 is a slanting oil discharge hole gradually increasing in height from inside to outside. The outer side opening of the inner bearing oil outlet 6 is connected with the inside of the oil return cavity 5. The bottom of the oil return cavity 5 is connected with the oil outlet of the sliding bearing 7 through a second flow channel in the sliding bearing 7.

[0028] The above structure increases the oil path structure of the inner bearing lubrication, eliminates the period of adding oil to the inner bearing during shutdown, improves the service life of the bearing and increases the production efficiency.

[0029] The input hole and the output hole are arranged on the rotating shaft of the outer rotor 9. The input hole and the output hole form a bearing lubrication loop through the gap of the inner bearing. The input hole and the output hole are the topological structure of the bearing lubrication channel.

[0030] The input hole is arranged on the outer rotor 9 at the contact position between the rotating shaft and the bearing bush of the sliding bearing 7. The entering lubricating oil lubricates the bearing in two ways. One way is to form an oil film to lubricate the bearing bush of the sliding bearing. The other way is to enter the inner bearing track through the input hole on the rotating shaft of the outer rotor 9 to lubricate the inner bearing 8.

[0031] There is a working running gap between the rotating shaft of the outer rotor 9 and the bearing bush of the sliding bearing 7. One way of lubricating oil flows into the oil return cavity through the working gap of the sliding bearing 7. The other way of lubricating oil flows into the oil return cavity 5 through the inner bearing 8. The oil return cavity 5 is used by the two ways of oil. The oil in the oil return cavity 5 flows into the thin oil station through the pipeline and is recycled.

[0032] As Figure 3 and Figure 4As shown, the inner bearing oil outlet 6 is circular in internal cross section, and the inner bearing oil inlet 4 and the inner bearing oil outlet 6 are arranged in a ring array at the periphery of the inner bearing 8.

[0033] The input shaft 91 and the output shaft 101 are similar in size and structure.

[0034] The inner rotor and the outer rotor transmit torque to each other through a magnetic field or other mechanical forms. The outer rotor 9 is fixed on the frame through bearings, and the bearings are sliding bearings 7 (rolling bearings). The inner rotor 10 is fixed on the outer rotating rotor through bearings. The sliding bearings 7 adopt forced thin oil lubrication. The lubricating oil entering the sliding bearings 7 is divided into two parts. One part is supplied to the bearing bush of the outer sliding bearing 7, and the other part is supplied to the inner bearing 8 for lubrication. The device is suitable for various mechanical fields of double rotors rotating with each other. It is of great significance to prolong the service life of the bearings.

[0035] The device with high-efficiency lubricated bearings of the application has the lubrication mode of the inner and outer bearings sharing an oil circuit. The lubricating oil of the inner bearing 8 is supplied through the pressure oil of the outer bearing. When the outer rotor 9 rotates, the oil is returned to the oil return cavity 5 through the pressure difference of the inner bearing oil outlet 6 and the pressure when the oil is supplied, and the reciprocating circulating oil makes the bearings well lubricated, prolonging the service life of the bearings. The circulating oil lubricated bearings do not need to stop for oiling. The circulating oil lubricated bearings make the working temperature of the bearings relatively stable. The circulating oil lubricated bearings reduce the maintenance of the equipment.

[0036] Based on the above ideal embodiments according to the application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the application. The technical scope of the application is not limited to the contents of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A device with high efficiency lubricated bearings, comprising a frame (1), a sliding bearing oil outlet (2), a sliding bearing oil inlet (3), an inner bearing oil inlet (4), an oil return cavity (5), an inner bearing oil outlet (6), a sliding bearing (7), an inner bearing (8), an outer rotor (9), an inner rotor (10), an oil inlet channel (11) and an oil outlet channel (12), characterized in that: The outer rotor (9) is fixed on the frame (1), the inner rotor (10) is fixed on the outer rotor (9) through a bearing, the outer rotor (9) is provided with an input shaft (91), an inner bearing oil inlet (4) and an inner bearing oil outlet (6), and the inner rotor (10) is provided with an output shaft (101); The sliding bearing oil inlet (3) is connected with the inner bearing oil inlet (4) through an internal passage of the sliding bearing (7); An oil inlet oil channel (11) is arranged on the rotating shaft of the outer rotor (9) between the inner bearing oil inlet (4) and the inner bearing (8), an oil outlet oil channel (12) is arranged between the inner bearing (8) and the inner bearing oil outlet (6), and the inner bearing oil outlet (6) is communicated with the oil return cavity (5); The oil outlet oil channel (12) is a gradually-higher inclined oil outlet channel from inside to outside; The bottom of the oil return cavity is communicated with the sliding bearing oil outlet through a second flow channel in the sliding bearing; The outer rotor rotating shaft and the sliding bearing bush contact are provided with an external oil inlet hole, and the entering lubricating oil lubricates the bearing in two ways, one way is to lubricate the sliding bearing bush to form an oil film, and the other way is to enter the inner bearing track through the oil inlet hole on the outer rotor rotating shaft to lubricate the inner bearing.

2. An apparatus having a high efficiency lubricated bearing as claimed in claim 1 characterised in that: The inner bearing oil inlet (4) and the inner bearing oil outlet (6) are arranged in a ring array mode on the periphery of the inner bearing (8).

3. An apparatus having a high efficiency lubricated bearing as defined in claim 1, wherein: The input shaft (91) and the output shaft (101) are similar in size and structure.

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