CN215830968U - Ball bearing lubricating oil self-supplying, collecting and cooling system for high-speed motor - Google Patents

Ball bearing lubricating oil self-supplying, collecting and cooling system for high-speed motor Download PDF

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Publication number
CN215830968U
CN215830968U CN202121418172.2U CN202121418172U CN215830968U CN 215830968 U CN215830968 U CN 215830968U CN 202121418172 U CN202121418172 U CN 202121418172U CN 215830968 U CN215830968 U CN 215830968U
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China
Prior art keywords
oil
lubricating oil
rotation axis
ball bearing
bearing
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Active
Application number
CN202121418172.2U
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Chinese (zh)
Inventor
蒋天楚
梅元卓
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Wuxi Shanmu Power Technology Co ltd
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Wuxi Shanmu Power Technology Co ltd
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Priority to CN202121418172.2U priority Critical patent/CN215830968U/en
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Abstract

The utility model relates to the technical field of bearing lubrication, in particular to a ball bearing lubricating oil self-supplying, collecting and cooling system for a high-speed motor, which has the advantages of simple structure, small volume, high integration degree, low motor noise and low production cost.

Description

Ball bearing lubricating oil self-supplying, collecting and cooling system for high-speed motor
Technical Field
The utility model relates to the technical field of bearing lubrication, in particular to a system for self-supplying, collecting and cooling of ball bearing lubricating oil for a high-speed motor.
Background
High speed motors are generally motors with a rotational speed of more than 10000 r/min. Need lubricating oil in its bearing to lubricate, and lubricating oil needs a set of independent oil feeding system, and oil system structure is complicated, including advancing oil pipe, return oil pipe, oil pump, cooler etc. the oil pump can produce extra noise, vibrations, reduces complete machine operation quality, advances oil pipe moreover and returns oil pipe etc. and occupy a large amount of spaces, in addition cooling system's setting for the motor volume becomes big, and manufacturing cost is high.
Disclosure of Invention
The utility model provides a ball bearing lubricating oil self-supply, collection and cooling system for a high-speed motor, which aims to solve the problems of noise, complex structure, large volume and high production cost of the existing motor.
The technical scheme is as follows: the utility model provides a ball bearing lubricating oil is from supplying, collecting, cooling system for high-speed motor, it includes the casing, install the rotation axis in the casing, the rotation axis is connected single ball bearing, its characterized in that, the rotation axis is vertical arranges, the oil feeding chamber is connected to the casing bottom, the blind hole oil duct has been seted up in the rotation axis, the opening of blind hole oil duct is located and stretches into the oil feeding chamber the rotation axis bottom, the correspondence has been seted up to blind hole oil duct lateral wall the lateral part oil duct of bearing, circle in the bearing seted up with lateral part oil duct complex bearing oilhole, the rotation axis with leave the clearance between the casing and form fluid and collect the chamber.
The lubricating oil sealing structure is further characterized in that a lubricating oil sealing structure is mounted at the upper end of the shell and comprises a fixed sealing element, the rotating shaft penetrates through a through hole formed in the middle of the fixed sealing element, a sealing area matched with the inner wall of the through hole of the fixed sealing element is arranged on the rotating shaft, a gap is reserved between the sealing area and the inner wall of the through hole, the sealing area comprises a polished rod part and a groove part, the groove part is formed by a circle of spiral groove, one end of the spiral groove is provided with an opening, the opening is positioned on the end face of one end of the sealing area, and the other end of the spiral groove is closed;
the bearing is provided with two and be single ball bearing.
After the oil pump is adopted, the motor noise is greatly reduced, when the rotating shaft with the blind hole oil duct rotates, lubricating oil in the oil supply cavity is sucked, enters the bearing through the side oil duct and the bearing oil hole, is discharged from the bearing, returns to the oil supply cavity through the oil collecting cavity under the action of gravity, and is collected through the cooling flow channel, so that circulation is formed, the structure is simple, additional oil inlet and oil return pipelines are omitted, the integration degree is high, the volume is reduced, and the production cost is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the point A in FIG. 1;
FIG. 3 is a schematic view of a lubricating oil seal configuration;
FIG. 4 is a top view of a lubrication seal;
fig. 5 is a schematic view of a rotor structure.
Detailed Description
Referring to fig. 1 to 5, a ball bearing lubricating oil self-supply for high-speed motor, collect, cooling system, it includes casing 1, install rotation axis 2 in the casing 1, rotation axis 2 connects bearing 3, bearing 3 is provided with about two and is ball bearing, rotation axis 2 is vertical to be arranged, oil supply chamber 4 is connected to casing 1 bottom, blind hole oil duct 5 has been seted up in rotation axis 2, the opening of blind hole oil duct 5 is located the rotation axis 2 bottom that stretches into oil supply chamber 4, lateral part oil duct 6 that corresponds bearing 3 has been seted up to blind hole oil duct 5 lateral wall, seted up on the inner circle of bearing 3 with lateral part oil duct 6 complex bearing oilhole 7, the quantity of lateral part oil duct 6 and bearing oilhole 7 can be adjusted as required, ensure that lubricating oil can circulate smoothly, leave the clearance between rotation axis 2 and the casing 1 and form fluid and collect chamber 9. The sealing device comprises a fixed sealing element, wherein a through hole is formed in the middle of the fixed sealing element, a sealing area matched with the inner wall of the through hole of the fixed sealing element is arranged on the rotating shaft, a gap is reserved between the sealing area and the inner wall of the through hole, the sealing area comprises a polished rod part and a groove part, the groove part is formed by a circle of spiral groove, one end of the spiral groove is an opening, the opening is positioned on the end face of one end of the rotor, and the other end of the spiral groove is closed
The lubricating oil sealing structure 8 is installed at the upper end of the shell 1, the lubricating oil sealing structure 8 comprises a fixed sealing element 8-1 which is matched with the rotating shaft 2, the rotating shaft 2 penetrates through a through hole formed in the middle of the fixed sealing element 8-1, a sealing area 8-2 which is matched with the inner wall of the through hole of the fixed sealing element 8-1 is arranged on the rotating shaft 2, a gap 8-5 is reserved between the sealing area 8-2 and the inner wall of the through hole, the sealing area 8-2 comprises a polished rod portion 8-3 and a groove portion 8-4, the groove portion 8-4 is formed by a circle of spiral groove, one end of the spiral groove is an opening, the opening is located on the end face of one end of the sealing area 8-2, the other end of the spiral groove is a closed opening, namely the groove extends from one end of the sealing area 8-2 to the axial middle portion, and the depth, the spiral angle and the like of the groove can be adjusted according to actual working conditions. When the device runs, the sealing area 8-2 rotates along with the rotating shaft 2, the medium on the other side (which is a mechanical working gaseous medium, generally air, or other gases such as helium, argon and hydrogen, and often has working conditions different from atmospheric pressure or extreme temperature) is guided and compressed to form a high-pressure area, and lubricating oil coming from the lower side is prevented by the high-pressure area, cannot pass through the high-pressure area and can only go down, so that the leakage phenomenon is effectively avoided.
When the motor works, the rotating shaft 2 rotates, lubricating oil in the oil supply cavity 4 is sucked into the blind hole oil duct 5, the lubricating oil rotates through the rotating shaft 2, pressure difference is formed at the plane of the bearing 3 due to the difference of inner and outer flow velocities caused by rotation, so that the lubricating oil is sucked to the plane of the bearing 3 from the oil supply cavity 4 at the bottom, and enters the space between the inner ring and the outer ring of the bearing 3 in a mist shape through the side oil duct 6 and the bearing oil hole 7 to lubricate balls, the lubricating oil is discharged from the bearing 3 to form a mixed state of oil mist and oil drops, and is gathered into a liquid state through the oil collecting cavity 9, and flows to the oil supply cavity 4 through the cooling flow channel 11 under the action of gravity to be collected, the lubricating oil flow channel is processed in the motor shell, the temperature difference within 10 ℃ compared with the room temperature is kept by external air cooling of the motor shell, the cooling effect is achieved on the high-temperature lubricating oil, and circulation is formed.
The utility model avoids an oil pump, reduces vibration, parts, cost and operation power consumption; an oil way is omitted, so that the structure is simpler, the integration degree is higher, and the size is smaller; the weight of the whole machine is reduced.

Claims (3)

1. The utility model provides a ball bearing lubricating oil is from supplying, collecting, cooling system for high-speed motor, it includes the casing, install the rotation axis in the casing, the rotation axis is connected single ball bearing, its characterized in that, the rotation axis is vertical arranges, the oil feeding chamber is connected to the casing bottom, the blind hole oil duct has been seted up in the rotation axis, the opening of blind hole oil duct is located and stretches into the oil feeding chamber the rotation axis bottom, the correspondence has been seted up to blind hole oil duct lateral wall the lateral part oil duct of bearing, circle in the bearing seted up with lateral part oil duct complex bearing oilhole, the rotation axis with leave the clearance between the casing and form fluid and collect the chamber.
2. The system for self-supplying, collecting and cooling of the lubricating oil of the ball bearing for the high-speed motor according to claim 1, wherein the lubricating oil sealing structure is installed at the upper end of the housing, the lubricating oil sealing structure includes a fixed sealing member, the rotating shaft penetrates through a through hole formed in the middle of the fixed sealing member, a sealing area matched with the inner wall of the through hole of the fixed sealing member is arranged on the rotating shaft, a gap is reserved between the sealing area and the inner wall of the through hole, the sealing area includes a polished rod portion and a groove portion, the groove portion is formed by a circle of spiral groove, one end of the spiral groove is an opening, the opening is located on the end face of one end of the sealing area, and the other end of the spiral groove is a closed opening.
3. The ball bearing lubricant self-supplying, collecting and cooling system for a high-speed motor according to claim 1, wherein there are two bearings.
CN202121418172.2U 2021-06-25 2021-06-25 Ball bearing lubricating oil self-supplying, collecting and cooling system for high-speed motor Active CN215830968U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121418172.2U CN215830968U (en) 2021-06-25 2021-06-25 Ball bearing lubricating oil self-supplying, collecting and cooling system for high-speed motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121418172.2U CN215830968U (en) 2021-06-25 2021-06-25 Ball bearing lubricating oil self-supplying, collecting and cooling system for high-speed motor

Publications (1)

Publication Number Publication Date
CN215830968U true CN215830968U (en) 2022-02-15

Family

ID=80190553

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121418172.2U Active CN215830968U (en) 2021-06-25 2021-06-25 Ball bearing lubricating oil self-supplying, collecting and cooling system for high-speed motor

Country Status (1)

Country Link
CN (1) CN215830968U (en)

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