CN217176886U - Hydrogen circulating pump with bearing lubricating structure - Google Patents
Hydrogen circulating pump with bearing lubricating structure Download PDFInfo
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- CN217176886U CN217176886U CN202221090638.5U CN202221090638U CN217176886U CN 217176886 U CN217176886 U CN 217176886U CN 202221090638 U CN202221090638 U CN 202221090638U CN 217176886 U CN217176886 U CN 217176886U
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- row ball
- rotor shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model provides a from hydrogen circulating pump of taking bearing lubricating structure, including motor casing and booster casing, be equipped with the double-row ball bearing that supports positive rotor shaft and negative rotor shaft in the booster casing respectively, double-row ball bearing installs in the bearing frame in the booster casing, double-row ball bearing's outer ball is linked together with the gear room, be equipped with on the bearing frame with the communicating intercommunicating pore of gear room, the intercommunicating pore opposite side is linked together with the slope passageway of establishing in the bearing frame, the opposite side of slope passageway is linked together with double-row ball bearing's interior ball, the lubricating oil in the gear room is lubricated the cooling through intercommunicating pore and slope passageway to double-row ball bearing's interior ball. When the hydrogen pump runs at a high speed, lubricating oil in the gear chamber can timely lubricate and cool the outer balls of the double-row ball bearings on one hand, and on the other hand, the lubricating oil can enter the inner balls of the double-row ball bearings through the communicating holes and the inclined channels to lubricate and cool the inner balls on the other hand, so that the service lives of the double-row ball bearings and the hydrogen circulating pump are prolonged.
Description
The technical field is as follows:
the utility model relates to a from hydrogen circulating pump of taking bearing lubricating structure.
Background art:
the fuel cell generates electric energy through electrochemical reaction between combustible substances (hydrogen) and oxygen in air, wherein after the fuel cell reaction, discharged gas contains a large amount of hydrogen, and if the hydrogen is directly discharged into the atmosphere, the hydrogen is on one hand wasted energy, on the other hand pollutes the environment, and on the other hand, the hydrogen is flammable and combustible, so that danger is generated. Therefore, it is necessary to recover and reuse such hydrogen. At present, these hydrogen-containing mixed gases are generally recycled to the fuel cell by a hydrogen circulation pump for recycling. Hydrogen circulating pump type is many, wherein, in roots's formula hydrogen circulating pump, including motor casing and booster casing, form the gear room between booster casing and the motor casing, be equipped with driving gear and driven gear in the gear room, booster casing opposite side is the pressure boost chamber, is equipped with male rotor and female rotor in the pressure boost intracavity, and the rotor shaft of motor drives the indoor driving gear rotation of gear, and it is rotatory that the driving gear drives driven gear again, finally drives male rotor and female rotor rotation and carries out the pressure boost. The bearing in the rotor shaft one end of motor passes through the motor rear end cover and supports, the other end supports through the double row ball bearing in the booster casing, the indoor lubricating oil that is equipped with of gear, be used for lubricating the driving gear, driven gear and double row ball bearing, however, when the high-speed operation of hydrogen pump, the indoor lubricating oil of gear can only play lubricated cooling effect to the outer ball of double row ball bearing, and the interior ball is in time not lubricated cooling, thereby seriously influence double row ball bearing's life, the development of hydrogen circulating pump has been restricted to above problem.
In conclusion, in the field of hydrogen circulating pumps, the problem of bearing lubrication in a bearing seat has become a technical problem to be solved urgently in the industry.
The utility model has the following contents:
the utility model discloses a remedy prior art not enough, provide a from hydrogen circulating pump of taking bearing lubricating structure, solved in the past lubricating oil in the gear chamber can not in time to the lubricated problem of cooling of interior row ball of double row ball bearing, prolonged double row ball bearing's life.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
a hydrogen circulating pump with a bearing lubricating structure comprises a motor shell and a supercharger shell, a gear chamber is formed between the supercharger shell and the motor shell, a driving gear and a driven gear are arranged in the gear chamber, lubricating oil is arranged in the gear chamber, a supercharging cavity is formed in the other side of the supercharger shell, a male rotor and a female rotor are arranged in the supercharging cavity, the driving gear and the male rotor are arranged on a male rotor shaft, the driven gear and the female rotor are arranged on a female rotor shaft, double-row ball bearings for supporting the male rotor shaft and the female rotor shaft are respectively arranged in the supercharger shell, the two double-row ball bearings are respectively arranged in bearing seats in the supercharger shell, outer-row balls of the ball bearings are communicated with the gear chamber, a communication hole communicated with the gear chamber is arranged on each bearing seat, the other side of the communication hole is communicated with an inclined channel arranged in each bearing seat, and the other side of the inclined channel is communicated with inner-row balls of the double-row ball bearings, and lubricating oil in the gear chamber lubricates and cools the inner balls of the double-row ball bearings through the communicating holes and the inclined channels.
The motor shell is internally provided with a stator, a rotor and a rotor shaft, and the rotor shaft and the male rotor shaft are integrally manufactured.
The rear end of the rotor shaft is supported by a first bearing mounted in a rear end cap of the motor housing.
The rear end of the female rotor shaft is supported by a second bearing mounted in the front end cap of the motor housing.
The utility model adopts the above technical scheme, have following advantage:
through set up on the bearing frame with the communicating intercommunicating pore of gear room, set up in the booster casing with the communicating inclined passage, the opposite side of inclined passage leads to the interior ball of double row ball bearing, when the high-speed operation of hydrogen pump, lubricating oil in the gear room can in time play lubricated cooling effect to the outer ball of double row ball bearing on the one hand, on the other hand can in time lubricate cooling to the interior ball of double row ball bearing through intercommunicating pore and inclined passage entering, has prolonged the life of double row ball bearing and hydrogen circulating pump.
Description of the drawings:
fig. 1 is a schematic cross-sectional structural view of the present invention.
Fig. 2 is a schematic longitudinal sectional structural view of the present invention.
Fig. 3 is a schematic perspective view of the bearing seat of the present invention.
In the figure, 1, a motor shell, 2, a supercharger shell, 3, a driving gear, 4, a driven gear, 5, a male rotor, 6, a female rotor, 7, a male rotor shaft, 8, a female rotor shaft, 9, a double-row ball bearing, 10, a bearing seat, 11, an outer row of balls, 12, a communication hole, 13, an inclined channel, 14, an inner row of balls, 15, a stator, 16, a rotor, 17, a rotor shaft, 18, a first bearing, 19 and a second bearing.
The specific implementation mode is as follows:
in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
As shown in fig. 1-3, a hydrogen circulating pump with bearing lubrication structure comprises a motor housing 1 and a supercharger housing 2, a gear chamber is formed between the supercharger housing 2 and the motor housing 1, a driving gear 3 and a driven gear 4 are arranged in the gear chamber, lubricating oil is arranged in the gear chamber, a supercharging cavity is arranged at the other side of the supercharger housing 2, a male rotor 5 and a female rotor 6 are arranged in the supercharging cavity, the driving gear 3 and the male rotor 5 are arranged on a male rotor shaft 7, the driven gear 4 and the female rotor 6 are arranged on a female rotor shaft 8, double-row ball bearings 9 for supporting the male rotor shaft 7 and the female rotor shaft 8 are respectively arranged in the supercharger housing 2, the two double-row ball bearings 9 are respectively arranged in a bearing seat 10 in the supercharger housing 2, outer balls 11 of the double-row ball bearings 9 are communicated with the gear chamber, a communication hole 12 communicated with the gear chamber is arranged on the bearing seat 10, the other side of the communication hole 12 is communicated with an inclined channel 13 arranged in the bearing seat 10, the other side of the inclined channel 13 is communicated with an inner row ball 14 of the double-row ball bearing 9, and lubricating oil in the gear chamber lubricates and cools the inner row ball 14 of the double-row ball bearing 9 through the communication hole 12 and the inclined channel 13.
The motor shell 1 is internally provided with a stator 15, a rotor 16 and a rotor shaft 17, and the rotor shaft 17 is integrally formed with the male rotor shaft 7.
The rear end of the rotor shaft 17 is supported by a first bearing 18 mounted in the rear end cap of the motor housing 1.
The rear end of the female rotor shaft 8 is supported by a second bearing 19 mounted in the front end cap of the motor housing 1.
When the motor works, the rotor shaft 17 drives the male rotor shaft 7 to rotate, the male rotor shaft 7 drives the male rotor 5 to rotate on the one hand, the driving gear 3 is driven to rotate on the other hand, the driving gear 3 drives the driven gear 4 to rotate again, and the driven gear 4 drives the female rotor 8 on the driving gear to synchronously rotate, so that the pressurizing function of the hydrogen circulating pump is realized. Besides lubricating the driving gear 3 and the driven gear 4, the lubricating oil in the gear chamber can timely lubricate and cool the outer row balls 11 of the double-row ball bearing 9 on one hand, and can timely lubricate and cool the inner row balls 14 entering the double-row ball bearing 9 through the communicating holes 12 and the inclined channels 13, so that the service lives of the double-row ball bearing 9 and the hydrogen circulating pump are prolonged. The lubricating oil in the outer row of balls 11 and the inner row of balls 14 finally flows back into the gear chamber for recycling.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (4)
1. The utility model provides a from hydrogen circulating pump of taking bearing lubricating structure which characterized in that: the booster comprises a motor shell and a booster shell, wherein a gear chamber is formed between the booster shell and the motor shell, a driving gear and a driven gear are arranged in the gear chamber, lubricating oil is arranged in the gear chamber, a boosting cavity is formed in the other side of the booster shell, a male rotor and a female rotor are arranged in the boosting cavity, the driving gear and the male rotor are arranged on a male rotor shaft, the driven gear and the female rotor are arranged on a female rotor shaft, double-row ball bearings for supporting the male rotor shaft and the female rotor shaft are respectively arranged in the booster shell, the two double-row ball bearings are respectively arranged in bearing seats in the booster shell, outer balls of the double-row ball bearings are communicated with the gear chamber, communication holes communicated with the gear chamber are arranged on the bearing seats, the other side of each communication hole is communicated with an inclined channel arranged in each bearing seat, and the other side of each inclined channel is communicated with inner balls of the double-row ball bearings, and lubricating oil in the gear chamber lubricates and cools the inner balls of the double-row ball bearings through the communicating holes and the inclined channels.
2. The hydrogen circulation pump with bearing lubrication structure of claim 1, wherein: the motor shell is internally provided with a stator, a rotor and a rotor shaft, and the rotor shaft and the male rotor shaft are integrally manufactured.
3. The hydrogen circulation pump with bearing lubrication structure as claimed in claim 2, wherein: the rear end of the rotor shaft is supported by a first bearing mounted in a rear end cap of the motor housing.
4. The hydrogen circulation pump with bearing lubrication structure of claim 1, wherein: the rear end of the female rotor shaft is supported by a second bearing mounted in the front end cap of the motor housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221090638.5U CN217176886U (en) | 2022-05-08 | 2022-05-08 | Hydrogen circulating pump with bearing lubricating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221090638.5U CN217176886U (en) | 2022-05-08 | 2022-05-08 | Hydrogen circulating pump with bearing lubricating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217176886U true CN217176886U (en) | 2022-08-12 |
Family
ID=82711781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221090638.5U Active CN217176886U (en) | 2022-05-08 | 2022-05-08 | Hydrogen circulating pump with bearing lubricating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217176886U (en) |
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2022
- 2022-05-08 CN CN202221090638.5U patent/CN217176886U/en active Active
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