CN108123568A - A kind of rolling bearing arrangement of electric motor of automobile - Google Patents
A kind of rolling bearing arrangement of electric motor of automobile Download PDFInfo
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- CN108123568A CN108123568A CN201611059918.9A CN201611059918A CN108123568A CN 108123568 A CN108123568 A CN 108123568A CN 201611059918 A CN201611059918 A CN 201611059918A CN 108123568 A CN108123568 A CN 108123568A
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- bearings
- oil
- motor
- parts
- rolling bearing
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a kind of rolling bearing arrangements of electric motor of automobile, housing, parts of bearings including motor and the motor shaft for being equipped with the first oil circuit in the axial direction, two opposite faces of the housing are respectively equipped with parts of bearings, motor shaft is installed with parts of bearings cooperation, the support to motor shaft is formed, the top of the two bearings component is respectively equipped with fuel feed hole；The bottom of one parts of bearings is equipped with the oil groove for being connected with oil sump, the fuel feed hole on top is connected with the liquid outlet of the first oil circuit, the fuel feed hole on another parts of bearings top is connected with oil sump, the parts of bearings lower part also is provided with oil groove, the inlet connection of first oil circuit of the oil groove and motor shaft, by the first oil circuit in motor shaft, fluid circuit is formed between the two bearings of motor.The present invention technical purpose be to provide a kind of maintenance period that can extend motor bearings, increase the rolling bearing arrangement of the electric motor of automobile of the reliability of bearing.
Description
Technical field
The present invention relates to field of electromechanical equipment, more particularly to a kind of rolling bearing arrangement of electric motor of automobile.
Background technology
China is huge to the consumption of the energy in the past for a long time in high speed development, and many injuries are also caused to environment,
Including being air quality.Therefore, cleaning, sustainable new energy are carried out energetically by China in recent years.
Motor is the important equipment that the electric power that new energy generates is converted into mechanical energy, and reliability, the efficiency of motor are direct
The utilization to new energy is influenced, since the maintenance time of existing motor is short, long-play high failure rate, reliability is strong
Etc. reasons, improve the failure rate of new-energy automobile in the process of moving, reduce desire to purchase of the people to new-energy automobile.
The content of the invention
The present invention technical purpose be to provide a kind of maintenance period that can extend motor bearings, increase the reliable of bearing
The rolling bearing arrangement of the electric motor of automobile of property.
The invention is realized by the following technical scheme：
The rolling bearing arrangement of the electric motor of automobile of the present invention, housing, parts of bearings including motor and is equipped with the in the axial direction
The motor shaft of one oil circuit, two opposite faces of the housing are respectively equipped with parts of bearings, and motor shaft is installed with parts of bearings cooperation, shape
The support of paired motor shaft, the top of the two bearings component is respectively equipped with fuel feed hole；The bottom of one parts of bearings is equipped with and is connected with
The oil groove of oil sump, the fuel feed hole on top are connected with the liquid outlet of the first oil circuit, the fuel feed hole and oil sump on another parts of bearings top
Connection, the parts of bearings lower part also are provided with oil groove, and the inlet of the first oil circuit of the oil groove and motor shaft connects, and passes through motor
The first oil circuit in axis forms fluid circuit between the two bearings of motor.
The tool of the inlet connection of first oil circuit of the rolling bearing arrangement of the electric motor of automobile of the present invention, oil groove and motor shaft
Body structure is：Oil pipe including being fixedly mounted and extending into oil groove bottom, the first oil circuit are pierced by the end of motor shaft, the motor
The end of axis is equipped with b flanges equipped with one end that connection a flanges, oil pipe and the cooperation of the first oil circuit are installed, and is fixed on b flanges detachable
At least three Elastic buckle is uniformly installed, the Elastic buckle and a flanges cooperation installation end are equipped with ball, a flanges be equipped with
The groove of the ball engagement；A flange sealing surfaces are equipped with rotary packing ring, and b flange sealing surfaces are equipped with stationary seal ring, dynamic sealing
Ring cooperatively forms sealing surface with stationary seal ring；In two bearings component filled with 0.12Mpa, 0.15Mpa, 0.18Mpa, 0.2Mpa,
The inert gas of the pressure of 0.22Mpa or 0.25Mpa.
The rolling bearing arrangement of the electric motor of automobile of the present invention, the material of the rotary packing ring is tungsten carbide, stationary seal ring
Material is polytetrafluoroethylene (PTFE) for polytetrafluoroethylene (PTFE) or the material of the rotary packing ring and stationary seal ring.
The rolling bearing arrangement of the electric motor of automobile of the present invention, parts of bearings includes outer ring, inner ring, retainer and roller, interior
On the external cylindrical surface of circle and the inner cylinder face of outer ring is equipped with to install the groove of roller, and retainer is installed with roller cooperation.
The rolling bearing arrangement of the electric motor of automobile of the present invention, motor further include rotor, and the liquid outlet of the first oil circuit is with being arranged on
The fuel tank connection of bearing side wall, the interior inert gas filled with setting pressure of the fuel tank, fuel tank bearing portion adjacent thereto
Fuel feed hole connection on part.
The rolling bearing arrangement of the electric motor of automobile of the present invention, the oil sump is interior to be equipped with as fluid power source oil pump.
The rolling bearing arrangement of the electric motor of automobile of the present invention, in two bearings component cooperation temperature sensor is installed, two
It is additionally provided with to measure the pressure sensor of inert gas pressure in parts of bearings, the delivery outlet of the oil pump is equipped with flow sensing
Device, the temperature sensor, pressure sensor, flow sensor and oil pump are connected respectively with MCU, and the MCU, which is also connected with, to be arranged on
Warning device on motor body.
The control method of the rolling bearing arrangement of the electric motor of automobile of the present invention, comprises the following steps：
A, motor is started, the real time temperature for measuring parts of bearings is transmitted to MCU by temperature sensor, when the temperature measured is less than 0.5T
When, T is the maximum temperature value of bearing operation, and MCU control oil pumps are run with flow Q1；When the temperature that temperature sensor measures is more than
Or equal to 0.5T and less than 0.8T when, MCU control oil pumps with flow Q2 run；When the temperature that temperature sensor measures is more than or waits
In 0.8T and less than T when, MCU control oil pumps with flow Q3 run；When the temperature that temperature sensor measures is greater than or equal to T,
MCU control oil pumps are run with flow Q4, and warning device is controlled to send alarm, if after operation setting time, temperature sensor
The temperature measured is still greater than or equal to T, then MCU controls motor out of service；
B, when the pressure that pressure sensor measures is less than the pressure of setting, MCU control alarms send alarm.
The beneficial effects of the invention are as follows:
1st, by being equipped with oilhole on the top of rolling bearing, lubricated by this oilhole, the fluid that cools down can carry out bearing
Lubrication, cooling so that fluid can be more preferable to the lubrication of bearing, cooling-down effect, and the by being equipped in motor shaft first oil
Road connects, and so as to form the circulation line of fluid, fluid circuit, this skill is respectively adopted compared to two parts of bearings
Art scheme enables to that the parts of motor are less, the weight of motor is lighter, and the oil sump of fluid can need to moisten with other
The device of sliding cooling shares together, so as to reduce the weight of vehicle, there is positive meaning to the loss of weight of automobile.
2nd, by being equipped with the inert gas of certain pressure in parts of bearings, so that entering one in fluid
After in bearing, larger pressure difference can be generated, fluid is smoothly flowed into another bearing, so that fluid follows
Ring is relatively reliable, stablizes.
3rd, the running temperature of bearing is enabled to be suitble to by the control method of the rolling bearing arrangement of electric motor of automobile
Within temperature range, so as to improve the serviceability ratio of bearing, compared to common rolling bearing, this bearing can improve pair
The adaptability of various working improves reliability.
Description of the drawings
Fig. 1 is the structure diagram of the rolling bearing arrangement of electric motor of automobile；
Fig. 2 is the enlarged drawing of A in Fig. 1；
Fig. 3 is oil pipe and the first oil passage connection structure figure.
It is marked in figure：1 be housing, 2 be parts of bearings, 3 be motor shaft, 4 be rotor, 5 be stator, 6 be outer ring, 7 be in
Circle, 8 be retainer, 9 be roller, 10 be oil groove, 11 be oil sump, 12 be the first oil circuit, 13 be buckled, 14 be rotary packing ring, 15
It is oil pipe for stationary seal ring, 16,17 is fuel tank.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
The rolling bearing arrangement of electric motor of automobile as shown in Figure 1, Figure 2 and Figure 3, housing 1, parts of bearings 2 including motor
And the motor shaft 3 of the first oil circuit 12 is equipped in the axial direction, two opposite faces of the housing 1 are respectively equipped with parts of bearings 2, motor
Axis 3 is installed with the cooperation of parts of bearings 2, forms the support to motor shaft, the top of the two bearings component 2 is respectively equipped with fuel feed hole
9；The bottom of one parts of bearings 2 is equipped with the oil groove 10 for being connected with oil sump 11, and the liquid outlet of 9 and first oil circuit 12 of fuel feed hole on top connects
It connects, the fuel feed hole 9 on another 2 top of parts of bearings is connected with oil sump 11, which also is provided with oil groove 10, the oil
Slot 10 is connected with the inlet of the first oil circuit 12 of motor shaft 3, by the first oil circuit in motor shaft, motor two bearings it
Between form fluid circuit, lubrication, cooling system so as to shape matched bearings.The present embodiment only gives the axis arranged on motor one side
Bearing structure figure, the motor bearings structure of opposite side is similar to the structure in Fig. 2, its knot can be clear from from the description of word
Structure, therefore be not shown.
Oil groove 10 is with the concrete structure that the inlet of the first oil circuit 12 of motor shaft 3 is connected：Including being fixedly mounted and stretching
Enter the oil pipe 16 to 10 bottom of oil groove, the first oil circuit 12 is pierced by the end of motor shaft 3, and the end of the motor shaft 3 is equipped with connection a
Flange, one end of 16 and first oil circuit 12 of oil pipe cooperation installation are equipped with b flanges, on b flanges it is fixed be detachably uniformly equipped with to
Few 3 Elastic buckles 13, the Elastic buckle 13 are equipped with ball with a flanges cooperation installation end, and a flanges are equipped with and the ball
The groove of cooperation；A flange sealing surfaces are equipped with rotary packing ring 14, and b flange sealing surfaces are equipped with stationary seal ring 15, rotary packing ring 14
Sealing surface is cooperatively formed with stationary seal ring 15, so as to which oil pipe 16 be connected with the first oil circuit 12；In two bearings component filled with
The inert gas of the pressure of 0.12Mpa, 0.15Mpa, 0.18Mpa, 0.2Mpa, 0.22Mpa or 0.25Mpa, inert gas are nitrogen
Gas, the pressure of inert gas is preferably 0.15Mpa, enables to fluid being capable of smooth circulation.
The material of the rotary packing ring 14 is tungsten carbide, and the material of stationary seal ring is polytetrafluoroethylene (PTFE) or the rotary packing ring
14 and the material of stationary seal ring 15 be polytetrafluoroethylene (PTFE), the durability of sealing device can be increased.
Parts of bearings 2 includes outer ring 6, inner ring 7, retainer 8 and roller 9, the inner circle of on the external cylindrical surface of inner ring 7 and outer ring
Cylinder is equipped with to install the groove of roller 9, and retainer is installed with the cooperation of roller 9.
The liquid outlet of first oil circuit 12 is connected with the fuel tank 17 arranged on bearing side wall, filled with setting pressure in the fuel tank
Inert gas, the fuel feed hole 9 on fuel tank parts of bearings 2 adjacent thereto connects, so that fluid is out of fuel tank
It is transported in fuel feed hole 9, so as to carry out circulating cooling to bearing, is equipped in oil sump 11 as fluid power source oil pump.
Cooperation is equipped with temperature sensor in two bearings component 2, is additionally provided with to measure indifferent gas in two bearings component 2
The pressure sensor of body pressure, the delivery outlet of the oil pump are equipped with flow sensor, the temperature sensor, pressure sensor,
Flow sensor and oil pump are connected respectively with MCU, and the MCU is also connected with the warning device on motor body.
The control method of the rolling bearing arrangement of electric motor of automobile, comprises the following steps：
A, motor is started, the real time temperature for measuring parts of bearings is transmitted to MCU by temperature sensor, when the temperature measured is less than 0.5T
When, T is the maximum temperature value of bearing operation, and MCU control oil pumps are run with flow Q1；When the temperature that temperature sensor measures is more than
Or equal to 0.5T and less than 0.8T when, MCU control oil pumps with flow Q2 run；When the temperature that temperature sensor measures is more than or waits
In 0.8T and less than T when, MCU control oil pumps with flow Q3 run；When the temperature that temperature sensor measures is greater than or equal to T,
MCU control oil pumps are run with flow Q4, and warning device is controlled to send alarm, if after operation setting time, temperature sensor
The temperature measured is still greater than or equal to T, then MCU controls motor out of service；
B, when the pressure that pressure sensor measures is less than the pressure of setting, MCU control alarms send alarm.
In above-mentioned steps, the temperature of bearing is detected by the temperature sensor being equipped with, temperature is transmitted to MCU, and is passed through
When bearing is in different temperature, the flow for the fluid for flowing through bearing is adjusted, so as to carry out effectively lubricating and drop to bearing
Temperature can play the protection to bearing, improve the reliability of bearing, durability, and extend the time between overhauls(TBO) of bearing.
Claims (8)
- A kind of 1. rolling bearing arrangement of electric motor of automobile, which is characterized in that the housing including motor（1）, parts of bearings（2）And edge Axis direction is equipped with the first oil circuit（12）Motor shaft（3）, the housing（1）Two opposite faces be respectively equipped with parts of bearings（2）, Motor shaft（3）With parts of bearings（2）Cooperation installation, forms the support to motor shaft, the two bearings component（2）Top difference Equipped with fuel feed hole（9）；One parts of bearings（2）Bottom be equipped be connected with oil sump（11）Oil groove（10）, the fuel feed hole on top（9）With First oil circuit（12）Liquid outlet connection, another parts of bearings（2）The fuel feed hole on top（9）With oil sump（11）Connection, the bearing Component（2）Lower part also is provided with oil groove（10）, the oil groove（10）With motor shaft（3）The first oil circuit（12）Inlet connection, By the first oil circuit in motor shaft, fluid circuit is formed between the two bearings of motor.
- 2. the rolling bearing arrangement of electric motor of automobile according to claim 1, which is characterized in that oil groove（10）With motor shaft （3）The first oil circuit（12）Inlet connection concrete structure be：Including being fixedly mounted and extending into oil groove（10）Bottom Oil pipe（16）, the first oil circuit（12）It is pierced by motor shaft（3）End, the motor shaft（3）End be equipped with connection a flanges, oil Pipe（16）With the first oil circuit（12）One end of cooperation installation is equipped with b flanges, is fixed on b flanges and is detachably uniformly equipped at least 3 A Elastic buckle（13）, the Elastic buckle（13）Ball is equipped with a flanges cooperation installation end, a flanges are equipped with and the rolling The groove of pearl cooperation；A flange sealing surfaces are equipped with rotary packing ring（14）, b flange sealing surfaces are equipped with stationary seal ring（15）, move close Seal ring（14）With stationary seal ring（15）Cooperatively form sealing surface；In two bearings component filled with 0.12Mpa, 0.15Mpa, 0.18Mpa, The inert gas of the pressure of 0.2Mpa, 0.22Mpa or 0.25Mpa.
- 3. the rolling bearing arrangement of electric motor of automobile according to claim 2, which is characterized in that the rotary packing ring（14）'s Material is tungsten carbide, and the material of stationary seal ring is polytetrafluoroethylene (PTFE) or the rotary packing ring（14）And stationary seal ring（15）Material It is polytetrafluoroethylene (PTFE).
- 4. the rolling bearing arrangement of electric motor of automobile according to claim 1, which is characterized in that parts of bearings（2）Including outer Circle（6）, inner ring（7）, retainer（8）And roller（9）, inner ring（7）External cylindrical surface on and outer ring inner cylinder face be equipped with use In installation roller（9）Groove, retainer and roller（9）Cooperation installation.
- 5. the rolling bearing arrangement of electric motor of automobile according to claim 3, which is characterized in that the first oil circuit（12）Go out liquid Mouth and the fuel tank arranged on bearing side wall（17）Connection, the inert gas filled with setting pressure in the fuel tank, the fuel tank and its Adjacent parts of bearings（2）On fuel feed hole（9）Connection.
- 6. the rolling bearing arrangement of electric motor of automobile according to claim 3, which is characterized in that the oil sump（11）Inside it is equipped with As fluid power source oil pump.
- 7. the rolling bearing arrangement of electric motor of automobile according to claim 6, which is characterized in that two bearings component（2）It is interior equal Cooperation is equipped with temperature sensor, two bearings component（2）Inside it is additionally provided with to measure the pressure sensor of inert gas pressure, institute State oil pump delivery outlet be equipped with flow sensor, the temperature sensor, pressure sensor, flow sensor and oil pump respectively with MCU connections, the MCU are also connected with the warning device on motor body.
- 8. the control method of the rolling bearing arrangement of electric motor of automobile according to claim 7, which is characterized in that including following Step：A, motor is started, the real time temperature for measuring parts of bearings is transmitted to MCU by temperature sensor, when the temperature measured is less than 0.5T When, T is the maximum temperature value of bearing operation, and MCU control oil pumps are run with flow Q1；When the temperature that temperature sensor measures is more than Or equal to 0.5T and less than 0.8T when, MCU control oil pumps with flow Q2 run；When the temperature that temperature sensor measures is more than or waits In 0.8T and less than T when, MCU control oil pumps with flow Q3 run；When the temperature that temperature sensor measures is greater than or equal to T, MCU control oil pumps are run with flow Q4, and warning device is controlled to send alarm, if after operation setting time, temperature sensor The temperature measured is still greater than or equal to T, then MCU controls motor out of service；B, when the pressure that pressure sensor measures is less than the pressure of setting, MCU control alarms send alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611059918.9A CN108123568A (en) | 2016-11-28 | 2016-11-28 | A kind of rolling bearing arrangement of electric motor of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611059918.9A CN108123568A (en) | 2016-11-28 | 2016-11-28 | A kind of rolling bearing arrangement of electric motor of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108123568A true CN108123568A (en) | 2018-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611059918.9A Pending CN108123568A (en) | 2016-11-28 | 2016-11-28 | A kind of rolling bearing arrangement of electric motor of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108123568A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542921A (en) * | 2020-12-22 | 2021-03-23 | 郑佳伟 | Cooling device and refrigerating system of high-speed motor |
-
2016
- 2016-11-28 CN CN201611059918.9A patent/CN108123568A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542921A (en) * | 2020-12-22 | 2021-03-23 | 郑佳伟 | Cooling device and refrigerating system of high-speed motor |
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Application publication date: 20180605 |