CN113864436A - Oil pump driving system of double-motor pure electric reduction gearbox - Google Patents
Oil pump driving system of double-motor pure electric reduction gearbox Download PDFInfo
- Publication number
- CN113864436A CN113864436A CN202111247970.8A CN202111247970A CN113864436A CN 113864436 A CN113864436 A CN 113864436A CN 202111247970 A CN202111247970 A CN 202111247970A CN 113864436 A CN113864436 A CN 113864436A
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- Prior art keywords
- oil pump
- motor
- clutch
- speed reducing
- reducing mechanism
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- 239000003638 chemical reducing agent Substances 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 53
- 238000010586 diagram Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0441—Arrangements of pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F5/00—Other convertible vehicles, i.e. vehicles capable of travelling in or on different media
- B60F5/02—Other convertible vehicles, i.e. vehicles capable of travelling in or on different media convertible into aircraft
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses an oil pump driving system of a double-motor pure electric reduction gearbox, which comprises an oil pump, a box body, a right driving motor, a left driving motor, a right speed reducing mechanism, a left speed reducing mechanism, a bevel gear speed reducing mechanism and a bevel gear output shaft. The left driving motor and the right driving motor can work normally when the oil pump works independently, the influence of the position of the driving motor is avoided, the rotating speed of the oil pump can be kept consistent with that of the driving motor, and meanwhile, the oil pump is driven by the driving motor instead of driving the oil pump after passing through a speed reducing mechanism, so that the displacement, the volume and the mass of the oil pump can be greatly reduced, and the weight and the cost of the aerocar are reduced.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to an oil pump driving system of a double-motor pure electric reduction gearbox.
Background
With the development of new energy technology, the pure electric reduction box is more and more put into wider application field, and the double-motor pure electric reduction box for low-altitude flight is one of the pure electric reduction boxes. The pure electric reduction box generally adopts an oil cooling or water cooling mode to cool the motor; the oil pump is an important component of the oil-cooled pure electric reduction gearbox, and the oil pump is used for conveying the engine oil in the whole gearbox into the box body to cool the motor and lubricate the gear and the bearing. The double-motor flying device requires less power during cruising and only needs to be driven by a single motor, so that the arrangement structure and the driving realization form of the double-motor flying device are very important for ensuring that the oil pump can always work normally in the double-motor driving mode and any single-motor driving mode.
Disclosure of Invention
The invention aims to provide an oil pump driving system of a double-motor pure electric reduction gearbox, which solves one or more of the problems in the prior art.
The oil pump driving system comprises an oil pump, a box body, a right driving motor, a left driving motor, a right speed reducing mechanism, a left speed reducing mechanism, a bevel gear speed reducing mechanism and a bevel gear output shaft, wherein the oil pump is arranged on the right side of the box body, the right driving motor and the left driving motor are symmetrically arranged on two sides of the box body, the right speed reducing mechanism and the left speed reducing mechanism are respectively connected to the inner sides of the right driving motor and the left driving motor, the right speed reducing mechanism and the left speed reducing mechanism are both connected with the bevel gear speed reducing mechanism, the bevel gear speed reducing mechanism is provided with the bevel gear output shaft, and the right speed reducing mechanism is connected with the oil pump.
In some embodiments, a clutch is disposed between the right drive motor and the right reduction mechanism, and a clutch is disposed between the left drive motor and the left reduction mechanism.
In some embodiments, the clutch includes a motor shaft, a reducer shaft, a clutch main disc, a clutch housing, and a clutch mechanism, the motor shaft is connected to the right driving motor, the reducer shaft is connected to the right reducer mechanism, the front end of the motor shaft is movably sleeved in the clutch main disc, the clutch housing is disposed outside the clutch main disc, and the reducer shaft is connected to the clutch housing through the clutch mechanism.
In some embodiments, the clutch mechanism includes a clutch slave disc movably sleeved on the front end of the reducer shaft, a pressure plate, a connecting spring and a sliding sleeve, the sliding sleeve is connected between the reducer shaft and the clutch housing, and the pressure plate is sleeved between the clutch slave disc and the sliding sleeve and is connected with the clutch housing through the connecting spring.
In some embodiments, the pressure plate is provided with a protruding rod, and the protruding rod is connected with the inner side of the sliding sleeve through a spring sheet.
In some embodiments, an oil pump driving umbrella shaft is arranged at the lower side of the right speed reducing mechanism, and the oil pump is provided with an oil pump driven umbrella shaft.
In some embodiments, the oil pump driving umbrella shaft is in meshed connection with the oil pump driven umbrella shaft.
In some embodiments, the bevel gear output shaft is provided with a propeller blade at an upper end thereof.
The double-motor pure electric reduction gearbox oil pump driving system has the advantages that the oil pump can normally work when the left driving motor works alone and the right driving motor works alone, the influence of the position of the driving motor is avoided, the rotating speed of the oil pump can be kept consistent with that of the driving motor, meanwhile, the oil pump is driven by the driving motor instead of driving the oil pump after passing through a speed reducing mechanism, the displacement, the volume and the mass of the oil pump can be greatly reduced, and the weight and the cost of a flying automobile are reduced.
Drawings
FIG. 1 is a schematic structural diagram of an oil pump driving system of a double-motor pure electric reduction gearbox according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of an oil pump driving system of a double-motor pure electric reduction gearbox according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a clutch of a dual-motor pure electric reduction gearbox oil pump driving system according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-3:
the invention discloses an oil pump driving system of a double-motor pure electric reduction box, which comprises an oil pump 1, a box body 2, a right driving motor 3, a left driving motor 4, a right speed reducing mechanism 5, a left speed reducing mechanism 6, a bevel gear speed reducing mechanism 7 and a bevel gear output shaft 8, wherein the oil pump 1 is arranged on the right side of the box body 2, the right driving motor 3 and the left driving motor 4 are symmetrically arranged on two sides of the box body 2, the inner sides of the right driving motor 3 and the left driving motor 4 are respectively connected with the right speed reducing mechanism 5 and the left speed reducing mechanism 6, the right speed reducing mechanism 5 and the left speed reducing mechanism 6 are both connected with the bevel gear speed reducing mechanism 7, the bevel gear speed reducing mechanism 7 is provided with the bevel gear output shaft 8, the right speed reducing mechanism 5 is connected with the oil pump 1, and the right driving motor 3 and the left driving motor 4 can simultaneously or independently drive the bevel gear output shaft 8 through the right speed reducing mechanism 5 and the left speed reducing mechanism 6.
A clutch 9 is arranged between the right driving motor 3 and the right speed reducing mechanism 5, a clutch 9 is arranged between the left driving motor 4 and the left speed reducing mechanism 6, and the connection between the driving motor and the speed reducer can be controlled through the clutch, so that the output driving motor is selected.
The clutch 9 comprises a motor shaft 91, a speed reducer shaft 92, a clutch main disc 93, a clutch housing 94 and a clutch mechanism 95, wherein the motor shaft 91 is connected with the right driving motor 3, the speed reducer shaft 92 is connected with the right speed reducer mechanism 5, the front end of the motor shaft 91 is movably sleeved in the clutch main disc 93, the clutch housing 94 is arranged on the outer side of the clutch main disc 93, and the speed reducer shaft 92 is connected with the clutch housing 94 through the clutch mechanism 95.
The clutch mechanism 95 includes a clutch slave disc 951, a pressure plate 952, a connecting spring 953 and a sliding sleeve 954, the clutch slave disc 951 is movably sleeved on the front end of the speed reducer shaft 92, the sliding sleeve 954 is connected between the speed reducer shaft 92 and the clutch housing 94, and the pressure plate 952 is sleeved between the clutch slave disc 951 and the sliding sleeve 954 and is connected with the clutch housing 94 through the connecting spring 953.
The pressure plate 952 is provided with a protruding rod 955, and the protruding rod 955 is connected with the inner side of the sliding sleeve 954 through an elastic sheet 956.
When the driving motor and the speed reducer need to be in transmission connection, the pressure plate 952 presses the clutch slave disc 951 inwards by pressing the sliding sleeve 954, so that the speed reducer shaft 92 is connected with the motor shaft 91, and the motor shaft 91 drives the speed reducer shaft 92 to rotate.
An oil pump driving umbrella shaft 51 is arranged on the lower side of the right speed reducing mechanism 5, an oil pump driven umbrella shaft 52 is arranged on the oil pump 1, and the oil pump driving umbrella shaft 51 is meshed with the oil pump driven umbrella shaft 52, so that the right speed reducing mechanism 5 drives the oil pump 1
The upper end of the bevel gear output shaft 8 is provided with a propeller blade 81, and the bevel gear output shaft 8 can drive the propeller blade 81 to rotate so as to provide flight power.
Example 1
The invention relates to an oil pump driving system of a double-motor pure electric reduction gearbox, which comprises an oil pump 1, a box body 2, a right driving motor 3, a left driving motor 4, a right speed reducing mechanism 5, a left speed reducing mechanism 6, a bevel gear speed reducing mechanism 7 and a bevel gear output shaft 8, wherein the left driving motor 4 is connected with a left clutch 9, the left clutch 9 is connected with the left speed reducing mechanism 6, the left speed reducing mechanism 6 is connected with the bevel gear speed reducing mechanism 7, the power of the left driving motor 4 is output to the left speed reducing mechanism 6 through the left clutch 9, and then is output to the bevel gear output shaft 8 through the bevel gear speed reducing mechanism 7 to output power;
the right driving motor 3 is connected with the right one-way clutch 4, the right one-way clutch 4 is connected with the right speed reducing mechanism 5, the right speed reducing mechanism 5 is connected with the bevel gear speed reducing mechanism 7, and the power of the right driving motor 3 is output to the right speed reducing mechanism 5 through the right one-way clutch 4 and then is output to the bevel gear output shaft 8 through the bevel gear speed reducing mechanism 7 to output power;
the right driving motor 3, the right clutch 9, the right speed reducing mechanism 5, the left driving motor 4, the left clutch 9 and the left speed reducing mechanism 6 are symmetrically arranged at two sides of the bevel gear speed reducing mechanism 7;
the oil pump 1 and the right speed reducing mechanism 5 are meshed and connected with an oil pump driven umbrella shaft 52 through an oil pump driving umbrella shaft 51;
when the right driving motor 3 works alone, the left driving motor 4 stops rotating, the right driving motor 3 can drive the outer rings of the right clutch 9, the right speed reducing mechanism 5, the bevel gear speed reducing mechanism 7, the bevel gear output shaft 8, the left speed reducing mechanism 6 and the left clutch 9 to rotate, the oil pump 1 can be driven by the right speed reducing mechanism 5 to work, and the working rotating speed of the oil pump 1 is the same as the working rotating speed of the right driving motor 3.
When the left driving motor 4 works alone, the right driving motor 3 stops rotating, the left driving motor 4 can drive the outer rings of the left clutch 9, the left speed reducing mechanism 6, the bevel gear speed reducing mechanism 7, the bevel gear output shaft 8, the right speed reducing mechanism 5 and the right one-way clutch 4 to rotate, the oil pump 1 can be driven by the right speed reducing mechanism 5 to work, and the working rotating speed of the oil pump 1 is the same as the working rotating speed of the left driving motor 4.
When the left driving motor 4 and the right driving motor 3 work simultaneously, the clutch 9, the right speed reducing mechanism 5, the bevel gear speed reducing mechanism 7, the bevel gear output shaft 8 and the left speed reducing mechanism 6 all rotate, the oil pump 1 can be driven by the right speed reducing mechanism 5 to work, and the working rotating speed of the oil pump 1 is the same as the working rotating speed of the right driving motor 3 and the working rotating speed of the left driving motor 4.
When the oil pump 1 works in the mode, the driving rotating speed of the oil pump is the same as the rotating speed of a left driving motor and a right driving motor, and the oil pump is directly driven by the motor under the condition of the same lubricating requirement, so that the oil pump is installed behind a speed reducing mechanism to be driven, the discharge capacity of the oil pump can be greatly reduced, the volume and the mass of the oil pump are obviously reduced, and the oil pump has important significance in reducing the servicing quality of the double-motor pure electric aircraft and saving the cost.
The foregoing is only a preferred form of the invention and it should be noted that several similar variations and modifications could be made by one skilled in the art without departing from the inventive concept and these should also be considered within the scope of the invention.
Claims (8)
1. The double-motor pure electric reduction gearbox oil pump driving system is characterized by comprising an oil pump (1), a box body (2), a right driving motor (3), a left driving motor (4), a right speed reducing mechanism (5), a left speed reducing mechanism (6), a bevel gear speed reducing mechanism (7) and a bevel gear output shaft (8), wherein the oil pump (1) is arranged on the right side of the box body (2), the right driving motor (3) and the left driving motor (4) are symmetrically arranged on two sides of the box body (2), the inner sides of the right driving motor (3) and the left driving motor (4) are respectively connected with the right speed reducing mechanism (5) and the left speed reducing mechanism (6), the right speed reducing mechanism (5) and the left speed reducing mechanism (6) are both connected with the bevel gear speed reducing mechanism (7), and the bevel gear output shaft (8) is arranged on the bevel gear speed reducing mechanism (7), the right speed reducing mechanism (5) is connected with the oil pump (1).
2. The drive system of the double-motor pure electric reduction gearbox according to claim 1, wherein a clutch (9) is arranged between the right drive motor (3) and the right speed reduction mechanism (5), and a clutch (9) is arranged between the left drive motor (4) and the left speed reduction mechanism (6).
3. The drive system of the double-motor pure electric reduction box is characterized in that the clutch (9) comprises a motor shaft (91), a reducer shaft (92), a clutch main disc (93), a clutch housing (94) and a clutch mechanism (95), the motor shaft (91) is connected with the right drive motor (3), the reducer shaft (92) is connected with the right reduction mechanism (5), the front end of the motor shaft (91) is movably sleeved in the clutch main disc (93), the clutch housing (94) is arranged on the outer side of the clutch main disc (93), and the reducer shaft (92) is connected with the clutch housing (94) through the clutch mechanism (95).
4. The drive system of the dual-motor pure electric reduction gearbox as claimed in claim 3, wherein the clutch mechanism (95) comprises a clutch slave disc (951), a pressure plate (952), a connecting spring (953) and a sliding sleeve (954), the clutch slave disc (951) is movably sleeved at the front end of the reducer shaft (92), the sliding sleeve (954) is connected between the reducer shaft (92) and the clutch housing (94), and the pressure plate (952) is sleeved between the clutch slave disc (951) and the sliding sleeve (954) and is connected with the clutch housing (94) through the connecting spring (953).
5. The drive system of the double-motor pure electric reduction gearbox as claimed in claim 4, wherein the pressure plate (952) is provided with a protruding rod (955), and the protruding rod (955) is connected with the inner side of the sliding sleeve (954) through a shrapnel (956).
6. The drive system of the double-motor pure electric reduction gearbox according to claim 1, wherein an oil pump drive umbrella shaft (51) is arranged at the lower side of the right reduction mechanism (5), and an oil pump driven umbrella shaft (52) is arranged at an oil pump of the oil pump (1).
7. The drive system of the double-motor pure electric reduction gearbox according to claim 6, wherein the oil pump drive umbrella shaft (51) is meshed with the oil pump driven umbrella shaft (52).
8. The drive system of the double-motor pure electric reduction gearbox according to claim 1, characterized in that a propeller blade (81) is arranged at the upper end of the bevel gear output shaft (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111247970.8A CN113864436A (en) | 2021-10-26 | 2021-10-26 | Oil pump driving system of double-motor pure electric reduction gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111247970.8A CN113864436A (en) | 2021-10-26 | 2021-10-26 | Oil pump driving system of double-motor pure electric reduction gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113864436A true CN113864436A (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111247970.8A Pending CN113864436A (en) | 2021-10-26 | 2021-10-26 | Oil pump driving system of double-motor pure electric reduction gearbox |
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| CN (1) | CN113864436A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB629726A (en) * | 1947-09-25 | 1949-09-27 | Saunders Roe Ltd | Improvements in indicating devices |
| CN201162640Y (en) * | 2008-03-05 | 2008-12-10 | 吴博 | Double-power apparatus of engineering machinery |
| CN201313631Y (en) * | 2008-12-26 | 2009-09-23 | 哈尔滨太阳岛船艇科技开发有限责任公司 | Twin-engine single-shaft rear power transmission propelling device for boat |
| CN204403217U (en) * | 2015-01-25 | 2015-06-17 | 付天鸿 | Microtractor plate clutch |
| CN104723902A (en) * | 2015-02-16 | 2015-06-24 | 上海瑞华(集团)有限公司 | Power-driven integrated motor torque control device |
| JP2016070358A (en) * | 2014-09-30 | 2016-05-09 | Ntn株式会社 | Lubrication device of in-wheel motor drive unit |
| WO2018130101A1 (en) * | 2017-01-13 | 2018-07-19 | 苏州绿控传动科技有限公司 | Electric drive axle |
-
2021
- 2021-10-26 CN CN202111247970.8A patent/CN113864436A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB629726A (en) * | 1947-09-25 | 1949-09-27 | Saunders Roe Ltd | Improvements in indicating devices |
| CN201162640Y (en) * | 2008-03-05 | 2008-12-10 | 吴博 | Double-power apparatus of engineering machinery |
| CN201313631Y (en) * | 2008-12-26 | 2009-09-23 | 哈尔滨太阳岛船艇科技开发有限责任公司 | Twin-engine single-shaft rear power transmission propelling device for boat |
| JP2016070358A (en) * | 2014-09-30 | 2016-05-09 | Ntn株式会社 | Lubrication device of in-wheel motor drive unit |
| CN204403217U (en) * | 2015-01-25 | 2015-06-17 | 付天鸿 | Microtractor plate clutch |
| CN104723902A (en) * | 2015-02-16 | 2015-06-24 | 上海瑞华(集团)有限公司 | Power-driven integrated motor torque control device |
| WO2018130101A1 (en) * | 2017-01-13 | 2018-07-19 | 苏州绿控传动科技有限公司 | Electric drive axle |
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Application publication date: 20211231 |