CN112943677A - Transmission oil pump assembly with overrunning clutch - Google Patents
Transmission oil pump assembly with overrunning clutch Download PDFInfo
- Publication number
- CN112943677A CN112943677A CN202110165254.9A CN202110165254A CN112943677A CN 112943677 A CN112943677 A CN 112943677A CN 202110165254 A CN202110165254 A CN 202110165254A CN 112943677 A CN112943677 A CN 112943677A
- Authority
- CN
- China
- Prior art keywords
- oil pump
- rotor
- fixedly connected
- overrunning clutch
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
- F04D29/044—Arrangements for joining or assembling shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/06—Feeding by means of driven pumps mechanically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
A transmission oil pump assembly with an overrunning clutch belongs to the technical field of automobile parts. The output end of the motor is fixedly connected with the rotor shaft, the outer side of the rotor shaft is sleeved with an oil pump rotor, an oil pump shell and a driving wheel, the oil pump rotor is fixedly connected with the rotor shaft, the oil pump shell is sleeved on the outer side of the oil pump rotor in a sleeving manner, the end part of the oil pump shell is fixedly connected with the motor, the driving wheel is fixedly connected with the driving end of the overrunning clutch, and the driven end of the overrunning clutch is fixedly connected with the rotor shaft; the driving wheel is in transmission connection with the driving chain wheel through the driving chain, the driving chain wheel is fixedly connected with the pump wheel shaft through the spline, the oil pump rotors can be driven independently by the two power sources respectively, and the power source with higher rotating speed can be selected to drive the oil pump rotors when the two power sources work simultaneously. The invention has the advantages of simple oil path, compact structure, miniaturization and low cost.
Description
Technical Field
The invention relates to a transmission oil pump assembly with an overrunning clutch, and belongs to the technical field of automobile parts.
Background
In order to solve the problems of contradiction between fuel supply and demand and environmental pollution, the new energy automobile has obvious effects on fuel economy and environmental protection.
The new energy automobile often has the operating mode that the engine stops rotating or the rotating speed is not high, so that an oil pump driven by the new energy automobile in the transmission cannot provide enough flow and pressure to maintain the requirement of a hydraulic system. Adding an independent electronic pump to supplement the deficiency of flow and pressure under the working condition is a common method for solving the problem. However, the separate electronic pump often causes problems of complexity of the oil passage structure, an increase in the volume of the transmission, an increase in production cost, and the like.
Chinese patent application No. CN105518302B entitled "hydraulic pressure supply device for vehicle" on the date of application No. 09/30/2014 discloses that oil passages are formed compactly by using oil passage constituting members in common for a mechanical oil pump and an electric oil pump, thereby achieving miniaturization of the entire device. However, it still requires two sets of rotors, a mechanical pump and an electronic pump, and has a small, low-cost space.
Therefore, it is desirable to invent a transmission oil pump with an overrunning clutch, which only uses one set of rotors, and can realize that two power sources can respectively and independently drive the oil pump rotors, and also can select the power source with higher rotation speed to drive the oil pump rotors when the two power sources work simultaneously.
Disclosure of Invention
To solve the problems in the background art, the invention provides a transmission oil pump assembly with an overrunning clutch.
The invention adopts the following technical scheme: a transmission oil pump assembly with an overrunning clutch comprises an oil pump rotor, a rotor shaft, the overrunning clutch, a driving wheel, a motor, an oil pump shell, a driving chain, a pump wheel shaft and a driving chain wheel; the output end of the motor is fixedly connected with the rotor shaft, the outer side of the rotor shaft is sleeved with an oil pump rotor, an oil pump shell and a driving wheel, the oil pump rotor is fixedly connected with the rotor shaft, the oil pump shell is sleeved on the outer side of the oil pump rotor in a sleeving manner, the end part of the oil pump shell is fixedly connected with the motor, the driving wheel is fixedly connected with the driving end of the overrunning clutch, and the driven end of the overrunning clutch is fixedly connected with the rotor shaft; the driving wheel is in transmission connection with a driving chain wheel through a driving chain, and the driving chain wheel is fixedly connected with the pump wheel shaft through a spline.
Compared with the prior art, the invention has the beneficial effects that:
the overrunning clutch has the advantages that the driving end is connected with the driving wheel, the driven end is connected with the rotor shaft, the oil pump rotor can be driven to rotate independently by two different power sources of the driving wheel and the rotor shaft, and the oil pump rotor can be driven by selecting the power source with higher rotating speed when the driving wheel and the rotor shaft work simultaneously.
Drawings
FIG. 1 is a structural sectional view of the motor end of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of the drive wheel driving the oil pump independently or the drive wheel driving the oil pump simultaneously with the rotor shaft according to the present invention;
FIG. 4 is a schematic view of the rotor shaft independently driven oil pump of the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
The first embodiment is as follows: as shown in fig. 1 to 4, the invention discloses a transmission oil pump assembly with an overrunning clutch, which comprises an oil pump rotor 1, a rotor shaft 2, the overrunning clutch 3, a driving wheel 4, a motor 5, an oil pump shell 6, a driving chain 7, a pump wheel shaft 8 and a driving sprocket 9; the output end of the motor 5 is fixedly connected with the rotor shaft 2, the outer side of the rotor shaft 2 is sleeved with an oil pump rotor 1, an oil pump shell 6 and a driving wheel 4, the oil pump rotor 1 is fixedly connected with the rotor shaft 2, the oil pump shell 6 is sleeved on the outer side of the oil pump rotor 1 in a sleeving manner, and the end part of the oil pump shell is fixedly connected with the motor 5 to form a rotor chamber of the oil pump rotor 1; the driving wheel 4 is fixedly connected with the driving end of the overrunning clutch 3, and the driven end of the overrunning clutch 3 is fixedly connected with the rotor shaft 2; the driving wheel 4 is in transmission connection with a driving chain wheel 9 through a driving chain 7, the driving chain 7 is used for transmitting the power of the driving chain wheel 9 to the driving wheel 4, the driving wheel 4 is connected with a driving force source of a wheel, and a power source connected with the driving wheel 4 is engine power transmitted to the driving wheel 4 through a pump wheel shaft 8, the driving chain wheel 9 and the driving chain 7; the driving chain wheel 9 is fixedly connected with the pump wheel shaft 8 through a spline.
The second embodiment is as follows: in the present embodiment, the first embodiment is further described, and the oil pump rotor 1 and the rotor shaft 2 are fixedly connected by a spline.
The third concrete implementation mode: in the present embodiment, the oil pump rotor 1 and the rotor shaft 2 are cast to form a further description.
The fourth concrete implementation mode: as shown in fig. 1, the second or third embodiment is further described, the number of the oil pump housings 6 is at least one, and the oil pump housings serve to accommodate, support and form a rotor chamber, and provide oil paths for oil suction and oil discharge of the oil pump.
The fifth concrete implementation mode: in this embodiment, the fourth embodiment is further explained, and the driving wheel 4 is a sprocket, a pulley or a gear.
The sixth specific implementation mode: the present embodiment is further described with respect to the first or fifth embodiment, and the oil pump rotor is in the form of a vane type, a gear type, or a cycloid type.
As shown in fig. 3, when the engine is used as an independent power source to drive the oil pump, power is transmitted to the driving wheel 4 through the pump axle 8, the driving sprocket 9 and the driving chain 7, the driving wheel 4 drives the overrunning clutch 3 to drive the rotor shaft 2 to rotate, so that the oil pump rotor 1 rotates, and the oil pump pumps oil to realize independent power source driving.
As shown in fig. 4, when the motor 5 drives the oil pump independently, the power of the motor 5 drives the oil pump rotor 1 to rotate through the rotor shaft 2, and the oil pump pumps oil to realize independent power source driving.
As shown in fig. 2, when the engine and the motor 5 work simultaneously to drive the oil pump, the power of the engine can be transmitted to the driving wheel 4 through the pump axle 8, the driving sprocket 9 and the driving chain 7, the power of the motor 5 is transmitted to the rotor shaft 2, at this time, the overrunning clutch 3 selects a power source with a higher rotation speed to drive the rotor shaft 2 and the oil pump rotor 1 according to the difference of the rotation speeds of the inner ring and the outer ring, and the oil pump pumps oil, so that the high-rotation-speed power source drive is realized when the two power sources drive.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A transmission oil pump assembly with an overrunning clutch comprises an oil pump rotor (1), a rotor shaft (2), the overrunning clutch (3), a driving wheel (4), a motor (5), an oil pump shell (6), a driving chain (7), a pump wheel shaft (8) and a driving chain wheel (9); the method is characterized in that: the output end of the motor (5) is fixedly connected with the rotor shaft (2), the outer side of the rotor shaft (2) is sleeved with an oil pump rotor (1), an oil pump shell (6) and a driving wheel (4), the oil pump rotor (1) is fixedly connected with the rotor shaft (2), the oil pump shell (6) is sleeved on the outer side of the oil pump rotor (1) in a sleeving manner, the end part of the oil pump rotor is fixedly connected with the motor (5), the driving wheel (4) is fixedly connected with the driving end of the overrunning clutch (3), and the driven end of the overrunning clutch (3) is fixedly connected with the rotor shaft (2); the driving wheel (4) is in transmission connection with a driving chain wheel (9) through a driving chain (7), and the driving chain wheel (9) is fixedly connected with a pump wheel shaft (8) through a spline.
2. The transmission oil pump assembly with an overrunning clutch of claim 1, wherein: the oil pump rotor (1) is fixedly connected with the rotor shaft (2) through a spline.
3. The transmission oil pump assembly with an overrunning clutch of claim 1, wherein: the oil pump rotor (1) and the rotor shaft (2) are formed by casting.
4. A transmission oil pump assembly with an overrunning clutch as claimed in claim 2 or 3 wherein: the number of the oil pump housings (6) is at least one.
5. The transmission oil pump assembly with an overrunning clutch of claim 4, wherein: the driving wheel (4) is a chain wheel or a belt wheel or a gear.
6. The transmission oil pump assembly with an overrunning clutch of claim 1 or 5, wherein: the oil pump rotor is in a blade type or gear type or cycloid type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110165254.9A CN112943677A (en) | 2021-02-06 | 2021-02-06 | Transmission oil pump assembly with overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110165254.9A CN112943677A (en) | 2021-02-06 | 2021-02-06 | Transmission oil pump assembly with overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112943677A true CN112943677A (en) | 2021-06-11 |
Family
ID=76242853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110165254.9A Pending CN112943677A (en) | 2021-02-06 | 2021-02-06 | Transmission oil pump assembly with overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112943677A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11107936A (en) * | 1997-09-30 | 1999-04-20 | Koyo Seiko Co Ltd | Hydraulic unit |
| CN102705492A (en) * | 2011-03-10 | 2012-10-03 | 奥迪股份公司 | Motor vehicle with transmission system and transmission system oil pump |
| CN107002521A (en) * | 2015-03-16 | 2017-08-01 | 宝马股份公司 | Hybrid power oil pump |
| CN107923516A (en) * | 2015-12-14 | 2018-04-17 | 皮尔伯格泵技术有限责任公司 | Hybrid power oil pump |
| CN210949816U (en) * | 2019-10-28 | 2020-07-07 | 无锡明恒混合动力技术有限公司 | Double-power-source oil pump driving structure for gearbox |
-
2021
- 2021-02-06 CN CN202110165254.9A patent/CN112943677A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11107936A (en) * | 1997-09-30 | 1999-04-20 | Koyo Seiko Co Ltd | Hydraulic unit |
| CN102705492A (en) * | 2011-03-10 | 2012-10-03 | 奥迪股份公司 | Motor vehicle with transmission system and transmission system oil pump |
| CN107002521A (en) * | 2015-03-16 | 2017-08-01 | 宝马股份公司 | Hybrid power oil pump |
| CN107923516A (en) * | 2015-12-14 | 2018-04-17 | 皮尔伯格泵技术有限责任公司 | Hybrid power oil pump |
| CN210949816U (en) * | 2019-10-28 | 2020-07-07 | 无锡明恒混合动力技术有限公司 | Double-power-source oil pump driving structure for gearbox |
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