CN107575559B - Wet-type three-clutch cooling oil way - Google Patents
Wet-type three-clutch cooling oil way Download PDFInfo
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- CN107575559B CN107575559B CN201710951024.9A CN201710951024A CN107575559B CN 107575559 B CN107575559 B CN 107575559B CN 201710951024 A CN201710951024 A CN 201710951024A CN 107575559 B CN107575559 B CN 107575559B
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- 238000001816 cooling Methods 0.000 title claims abstract description 68
- 230000005540 biological transmission Effects 0.000 claims description 40
- 238000007789 sealing Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 description 17
- 239000010959 steel Substances 0.000 description 17
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a wet three-clutch cooling oil way, which comprises a first clutch, a second clutch and a third clutch; the end part of the motor shell, which is close to the input shaft, extends a preset distance along the axial direction of the input shaft to form a lower extension part, and the input shaft is rotatably supported in the lower extension part; the right end of the front shell is fixed with the middle plate; the rotor bracket is rotatably supported on the lower extension part of the motor shell through an angular contact ball bearing; the first clutch, the second clutch and the third clutch are arranged in the rotor bracket side by side and are cooled through separate cooling oil paths. According to the invention, the first clutch, the second clutch and the third clutch are arranged in parallel in the rotor, each clutch is provided with an independent cooling oil way, and the three clutches are cooled independently, so that the problem of arrangement of the cooling oil ways of the parallel clutches is solved, and the dragging loss of the clutches is effectively reduced.
Description
Technical Field
The invention relates to a wet-type three-clutch cooling oil way, and belongs to the technical field of hybrid power transmissions in the automobile industry.
Background
With the rapid development of the automobile industry, the global automobile conservation amount continuously rises, and the problems of energy consumption, environmental pollution and the like brought by automobiles are increasingly revealed. In order to cope with increasingly strict automobile fuel consumption and emission regulations, each automobile enterprise takes an energy-saving and emission-reduction technology as an important research and development direction, and a hybrid electric vehicle is gradually in a brand-new corner in the market due to technical advantages and cost advantages, so that the hybrid electric vehicle becomes a main stream development trend of the automobile industry.
Hybrid transmissions need to be able to transmit power while achieving power coupling of the engine to the electric machine. For power coupling, an electric machine coupling clutch arrangement is usually provided between the engine and the transmission, which generally comprises an electric machine, three wet clutches, of which a first clutch is connected to the engine, and a second clutch and a third clutch are connected to the transmission. The second clutch and the third clutch have two structure forms of nested type and parallel type, for the nested type scheme, only one cooling oil way is used for cooling the second clutch and the third clutch, so that the arrangement of the cooling oil way is convenient, but the dragging loss of the clutch is larger, for the parallel type scheme, each clutch is independently cooled, the dragging loss of the clutch can be effectively reduced, and the arrangement of the cooling oil way is very difficult.
Disclosure of Invention
The invention aims to provide a wet-type three-clutch cooling oil way which is used for independently cooling three clutches which are arranged in parallel and solving the arrangement problem of the three cooling oil ways.
The invention solves the technical problems by adopting the following technical scheme: a wet three-clutch cooling oil path, wherein the wet three-clutch comprises a motor shell, a front shell, a middle plate, a rotor bracket, a first clutch, a second clutch and a third clutch;
the upper end of the motor shell is fixed on the front shell;
the end part of the motor shell, which is close to the input shaft, extends a preset distance along the axial direction of the input shaft to form a lower extension part, and the lower extension part is rotatably supported on the input shaft; the right end of the front shell is fixedly provided with the middle plate;
the rotor bracket is rotatably supported on the lower extension part of the motor shell through an angular contact ball bearing;
the first clutch, the second clutch and the third clutch are arranged in the rotor bracket side by side and are cooled through separate cooling oil paths.
Optionally, an end of the motor housing remote from the input shaft also extends a predetermined distance in an axial direction of the input shaft, forming an upper extension, the upper extension being fixed to the front housing.
Optionally, a first oil passage is formed on the front housing along a horizontal direction, a third oil passage is formed on the motor housing along a vertical direction, one end of the first oil passage of the front housing is communicated with the transmission control valve, the other end of the first oil passage of the front housing is communicated with the third oil passage of the motor housing, and after the first clutch cooling oil flows out of the transmission control valve, the first clutch cooling oil flows through the first oil passage on the front housing and enters the third oil passage on the side wall of the motor housing;
a sealed cooling oil channel is formed between the first clutch hydraulic cylinder and the motor shell;
the motor shell is internally provided with a first oil guide sleeve in an pressing mode, and a groove is formed in the first oil guide sleeve, so that a first oil cavity is formed between the oil guide sleeve and the motor shell; be equipped with oil inlet channel hole and play oil channel hole on motor housing, and oil inlet channel hole and play oil channel hole all communicate with first oil pocket, also seted up the oil channel hole on the rotor support, first clutch cooling oil flows to sealed oil duct that forms between first clutch pneumatic cylinder and the motor housing from the inside third oil duct of motor housing, gets into first oil pocket between motor housing and the oil guide sleeve through the oil channel hole on the motor housing to flow to the region between two angular contact ball bearings through another one oil channel hole on the motor housing, flow to first clutch through the oil channel hole on the rotor support.
Optionally, the cylinder body of the first clutch hydraulic cylinder is provided with an oil guiding groove, and a first sealing ring is arranged between the first clutch hydraulic cylinder and the motor shell, so that a sealed cooling oil channel is formed between the first clutch hydraulic cylinder and the motor shell.
Optionally, a second oil duct is formed on the front housing along the horizontal direction, a fourth oil duct is formed on the motor housing along the vertical direction, one end of the second oil duct of the front housing is communicated with the transmission control valve, the other end of the second oil duct of the front housing is communicated with the fourth oil duct of the motor housing, and after the second clutch cooling oil flows out of the transmission control valve, the second clutch cooling oil flows through the second oil duct on the front housing and enters the fourth oil duct on the side wall of the motor housing;
a first oil seal is arranged between the input shaft and the motor shell, so that a seal is formed between the motor shell and the input shaft, the input shaft is of a hollow shaft structure, a second oil guide sleeve is arranged in the input shaft in a pressing mode, a groove is formed in the second oil guide sleeve, a second oil cavity is formed between the input shaft and the oil guide sleeve, and meanwhile an oil duct hole is formed in the input shaft and communicated with the second oil cavity;
a certain gap is reserved between the input shaft and the first output shaft for cooling oil to flow through, and a plurality of grooves are formed in the end part of the input shaft;
the cooling oil of the second clutch flows in from a fourth oil duct in the motor shell, flows into an oil cavity between the input shaft and the oil guide sleeve through an oil duct hole on the input shaft, flows out from a groove at the end part of the input shaft through a gap between the input shaft and the first output shaft, and flows to the second clutch.
Optionally, a second seal ring is disposed between the second clutch input shaft and the transmission input shaft to prevent the second clutch cooling oil from being split.
Optionally, a horizontal extension part is formed on the middle plate, a fifth oil duct and a sixth oil duct are formed on the horizontal extension part of the middle plate, and the transmission control valve is communicated with the first oil duct of the front shell through the fifth oil duct on the middle plate; the transmission control valve is communicated with the second oil duct of the front shell through a sixth oil duct on the middle plate.
Optionally, a seventh oil duct is formed in the middle plate along the vertical direction, and one end of the seventh oil duct is connected with the transmission control valve body; the second oil seal is arranged between the middle plate and the second output shaft, so that sealing is formed between the middle plate and the second output shaft, the third clutch hydraulic cylinder is fixed on the side wall of the middle plate, a certain gap is formed between the third clutch hydraulic cylinder and the second output shaft, and the third clutch cooling oil flows out of the transmission control valve and flows in along a seventh oil duct of the middle plate and flows to the third clutch through the gap between the third clutch hydraulic cylinder and the second output shaft.
The invention has the following beneficial effects: according to the invention, the first clutch, the second clutch and the third clutch are arranged in parallel in the rotor, each clutch is provided with an independent cooling oil way, and the three clutches are cooled independently, so that the problem of arrangement of the cooling oil ways of the parallel clutches is solved, and the dragging loss of the clutches is effectively reduced.
Drawings
Fig. 1 is a schematic diagram of the structure of a wet three-clutch cooling oil passage (a flow path of a first clutch cooling oil) of the present invention;
fig. 2 is a schematic structural view of a wet three-clutch cooling oil passage (a flow path of a second clutch cooling oil) of the present invention;
FIG. 3 is a schematic diagram of the wet three-clutch cooling circuit of the present invention;
FIG. 4 is a schematic structural view of a second oil jacket according to the present invention;
FIG. 5 is a schematic structural view of a first oil jacket according to the present invention;
FIG. 6 is a schematic view of the configuration of the first and second clutch plates of the present invention;
FIG. 7 is a schematic view of a sliding support plate according to the present invention;
FIG. 8 is a schematic view of the mounting structure of the sliding support plate and the second clutch pressure plate of the present invention;
the labels in the figures are: 1-a rotor support; 2-a first clutch; 3-a second clutch; 4-a third clutch; 5-a motor housing; 6-an oil baffle plate; 7-angular contact ball bearings; 8-first clutch cooling oil; 9-a first clutch hydraulic cylinder; 10-needle bearings; 11-a first oil seal; 12-an input shaft; 13-a second oil guiding sleeve; 14-a first sealing ring; 15-a first output shaft; 16-a second output shaft; 17-a middle plate; 18-a third clutch hydraulic cylinder; 19-oil seal; 20-variator input shaft; 21-a second sealing ring; 22-second clutch cooling oil; 23-third clutch cooling oil; 24-a first oil guiding sleeve; 25-a front housing; 31-friction plate of the first clutch; 32-steel plates of the first clutch; 33-a first clutch release bearing; 34—a first clutch pressure plate; 35-friction plate of the second clutch; 36-steel plates of the second clutch; 37-friction plate of the third clutch; 38-steel plates of the third clutch; 39—a second clutch cylinder; 40-a second clutch pressure plate; 41-a third clutch pressure plate; 42-clamping jaws; 43-sliding support piece; 431—a first arc portion; 432-a second arc portion; 433-fixing columns; 44-a first oil passage; 45-a second oil passage; 46-a third oil passage; 47-fourth oil passage; 48-a fifth oil passage; 49-sixth oil passage.
Detailed Description
The technical scheme of the invention is further described below with reference to the embodiment and the attached drawings.
Example 1
The present embodiment provides a wet three-clutch cooling oil path, wherein the wet three-clutch includes a motor housing 5, a front housing 25, a middle plate 17, a first clutch 2, a second clutch 3, and a third clutch 4;
the input shaft 12 is rotatably supported in the motor housing 5 by two needle bearings 10, for example, an end portion of the motor housing 5 near the input shaft 12 extends a predetermined distance in the axial direction of the input shaft 12 to form a lower extension portion in which the input shaft 12 is rotatably supported by the needle bearings 10, and an end portion of the motor housing 5 remote from the input shaft 12 is fixed to the front housing 25, referring to fig. 1, in this embodiment, an end portion of the motor housing 5 remote from the input shaft 12 also extends a predetermined distance in the axial direction of the input shaft 12 to form an upper extension portion so that the motor housing 5 is located inside the front housing 25; the front housing 25 is disposed parallel to the axis of the input shaft 12, and the middle plate 17 is fixed to the right end of the front housing 25, and the middle plate 17 is disposed perpendicular to the axis of the input shaft 12.
The first clutch 2, the second clutch 3 and the third clutch 4 are arranged side by side in the interior of the rotor support 1, and the rotor support 1 is rotatably supported on the lower extension of the motor housing 5 by two angular contact ball bearings 7; in this embodiment, the angular ball bearing 7 is preloaded and axially positioned by a lock nut. The first clutch 2, the second clutch 3 and the third clutch 4 are integrated with the rotor frame 1, thereby reducing the axial size and the number of parts of the motor and clutch integrated device of the present embodiment.
Specifically, the friction plate 31 of the first clutch is connected with the input shaft 12 through a spline, and the steel plate 32 of the first clutch is connected with the rotor bracket 1 through a spline; the cylinder body of the first clutch hydraulic cylinder 9 is fixed on the motor housing 5, the piston of the first clutch hydraulic cylinder 9 is connected to the first clutch pressure plate 34 through a first clutch release bearing 33, the first clutch pressure plate 34 penetrates through the rotor support 1 to be in contact with the steel sheet 32 of the first clutch, when the piston of the first clutch hydraulic cylinder 9 moves rightwards, the steel sheet 32 of the first clutch is pushed to move rightwards through the first clutch pressure plate 34 to be in contact with the friction sheet 31 of the first clutch, so that the first clutch 2 is engaged, the power of an engine is transmitted to the rotor support 1 through the input shaft 12 and the first clutch 2, and a sliding support structure is arranged between the first clutch pressure plate 34 and the rotor support 1 for guiding and positioning of the first clutch pressure plate 34.
The friction plate 35 of the second clutch is spline-connected to the first output shaft 15, the steel plate 36 of the second clutch is spline-connected to the rotor bracket 1, one end of the first output shaft 15 is rotatably supported in the input shaft 12 by a needle bearing, and the other end of the first output shaft 15 is spline-connected to a transmission input shaft (not shown).
Like the second clutch 2, the friction plate 37 of the third clutch is connected with the second output shaft 16 through a spline, the steel plate 38 of the third clutch is connected with the rotor bracket 1 through a spline, one end of the second output shaft 16 is rotatably supported on the first output shaft 15 through a needle bearing, and the other end of the second output shaft 16 is connected with a transmission input shaft through a spline (not shown in the figure).
The second clutch cylinder 39 and the third clutch cylinder 18 are each fixed to the middle plate 17, and the piston of the second clutch cylinder 39 is connected to a second clutch pressure plate 40 through a second clutch release bearing, and the piston of the third clutch cylinder 18 is connected to a third clutch pressure plate 41 through a third clutch release bearing.
In this embodiment, the outer edge of the third clutch pressure plate 41 is provided with a trapezoidal spline, so that the third clutch pressure plate 41 rotates synchronously with the rotor bracket 1 through the trapezoidal spline, and the third clutch pressure plate 41 is radially positioned and axially guided; an annular bulge is formed on the third clutch pressure plate 41 along the circumferential direction, the annular bulge is contacted with the steel sheet 38 of the third clutch, so that when the third clutch pressure plate 41 moves leftwards along the axial direction, the third clutch pressure plate 41 pushes the steel sheet 38 of the third clutch to move leftwards, the steel sheet 38 of the third clutch is contacted with the friction sheet 37 of the third clutch, the power transmission of the third clutch 4 is realized, and the power of a motor or an engine is transmitted to the transmission input shaft through the rotor bracket 1, the third clutch 4 and the second output shaft 16; conversely, when the third clutch 4 is not required to operate, the spring element decouples the third clutch 4 (ensuring a complete decoupling between the friction plate and the steel plate, reducing the clutch drag torque), cutting off the power transmission; at this time, the third clutch pressure plate 41 moves rightward, so that the third clutch 4 is disengaged.
The third clutch pressure plate 41 is provided with a plurality of circular arc holes along the circumferential direction; in the present embodiment, preferably, the circular arc holes are uniformly distributed along the circumferential direction of the third clutch pressure plate 41, and the number of the circular arc holes may be 8; and the steel sheet 38 of the third clutch is also provided with a circular arc hole at a position corresponding to the circular arc hole of the third clutch pressure plate 41.
The second clutch pressure plate 40 is provided with a claw 42 matched with the circular arc hole, the claw 42 penetrates through the third clutch pressure plate 41 and the circular arc hole of the steel sheet 38 of the third clutch to be in contact with the steel sheet 36 of the second clutch, so that when the second clutch pressure plate 40 moves leftwards along the axial direction, the steel sheet 36 of the second clutch can be pushed to move, the steel sheet 36 of the second clutch is in contact with the friction plate 35 of the second clutch, the power transmission of the second clutch 3 is realized, and the power of a motor or an engine is transmitted to an input shaft of the transmission through the rotor bracket 1, the second clutch 3 and the first output shaft 15.
More preferably, a sliding support piece 43 is provided between the second clutch pressure plate 40 and the third clutch pressure plate 41, the sliding support piece including a first arc portion 431, a second arc portion 432, and a fixed column 433.
The first arc portion 431 and the second arc portion 432 have the same width and thickness, one end of the second arc portion 432 in the circumferential direction is connected to one end of the first arc portion 431 in the circumferential direction, and the first arc portion 431 and the second arc portion 432 can be tightly attached to the second clutch pressure plate 40 when being mounted on the second clutch pressure plate 40, that is, the shape of the first arc portion 431 and the second arc portion 432 corresponds to the shape of the second clutch pressure plate 40 in contact with the first arc portion 431 and the second arc portion 432, in this embodiment, the first arc portion 431 and the second arc portion 432 can be integrally formed.
One end of the fixing pillar 433 is fixed to the first arc portion 431, preferably, the fixing pillar 433 is perpendicular to the first arc portion 431, and the fixing pillar 433 and the second arc portion 432 are located at the same side of the first arc portion 431.
The second clutch pressure plate 40 is provided with a plurality of mounting holes, in this embodiment, the mounting holes are uniformly distributed along the circumferential direction of the second clutch pressure plate 40, and the fixing posts 433 of the sliding support plates 43 are fixed in the mounting holes, so that the sliding support plates 43 are located between the second clutch pressure plate 40 and the third clutch pressure plate 41, and the upper surface and the lower surface of the sliding support plates are respectively contacted with the third clutch pressure plate 41 and the second clutch pressure plate 40, i.e. the sliding support plates 43 enable the second clutch pressure plate 40 to be positioned radially and guided axially.
A first oil passage 44 and a second oil passage 45 are formed in the front housing 25 along the horizontal direction, a third oil passage 46 and a fourth oil passage 47 are formed in the motor housing 5 along the vertical direction, one end of the first oil passage 44 of the front housing 25 is communicated with the transmission control valve, the other end of the first oil passage 44 of the front housing 25 is communicated with the third oil passage 46 of the motor housing 5, and the first clutch cooling oil 8 flows out of the transmission control valve, flows through the first oil passage 44 on the front housing 25 and enters the third oil passage 46 on the side wall of the motor housing 5; and, one end of the second oil passage 45 of the front housing 25 is communicated with the transmission control valve, and the other end is communicated with the fourth oil passage 47 of the motor housing 5, and the second clutch cooling oil 22 flows out of the transmission control valve, then flows through the second oil passage 45 of the front housing 25 and enters the fourth oil passage 47 of the side wall of the motor housing 5.
When the middle plate 17 has a horizontal extension portion in the horizontal direction, a fifth oil passage and a sixth oil passage are formed in the horizontal extension portion, one end of the fifth oil passage is communicated with the transmission control valve, and the other end of the fifth oil passage is communicated with the first oil passage 44 of the front housing 25, that is, the transmission control valve is communicated with the first oil passage 44 of the front housing through the fifth oil passage on the middle plate 17, so that the first clutch cooling oil 8 flows out of the transmission control valve, and then flows through the first oil passage on the middle plate 17 and the first oil passage 44 on the front housing 25 to enter the third oil passage 46 on the side wall of the motor housing 25.
Meanwhile, the transmission control valve communicates with the second oil passage 45 of the front housing 25 through a sixth oil passage on the middle plate 17.
The cylinder body of the first clutch hydraulic cylinder 9 is provided with an oil guide groove, and a first sealing ring 14 is arranged between the first clutch hydraulic cylinder 9 and the motor housing 5, so that a sealed cooling oil channel is formed between the first clutch hydraulic cylinder 9 and the motor housing 5.
The motor shell is internally provided with a first oil guide sleeve 24 in a pressing mode, and a groove is formed in the first oil guide sleeve 24, so that a first oil cavity is formed between the oil guide sleeve 24 and the motor shell 5. Two oil passage holes are formed in the motor housing 5 and are communicated with the first oil cavity, meanwhile, the rotor support is also provided with the oil passage holes, first clutch cooling oil 8 flows from a third oil passage in the motor housing 5 to a sealing oil passage formed between the first clutch hydraulic cylinder 9 and the motor housing 5, enters the first oil cavity between the motor housing 5 and the oil guide sleeve 24 through the oil passage holes in the motor housing 5, flows to an area between the two angular contact ball bearings 7 through another oil passage hole in the motor housing 5, finally flows to the first clutch 2 through the oil passage holes in the rotor support 1, cools the first clutch 2, and finally flows out of two sides of the rotor support 1 along the inner wall of the rotor support 1. An oil baffle plate is arranged at the angular contact ball bearing to prevent cooling oil from being shunted from the angular contact ball bearing.
The first oil seal 11 is arranged between the input shaft 12 and the motor shell 5, so that the motor shell 5 and the input shaft 12 are sealed, the input shaft 12 is of a hollow shaft structure, the second oil guide sleeve 13 is arranged in the input shaft 12 in a pressing mode, a groove is formed in the second oil guide sleeve 13, a second oil cavity is formed between the input shaft 12 and the oil guide sleeve 13, meanwhile, an oil duct hole is formed in the input shaft, and the second oil cavity is communicated with the second oil cavity.
A certain gap is formed between the input shaft 12 and the first output shaft 15 for cooling oil to flow through, and a plurality of grooves are formed in the end portion of the input shaft 12.
The second clutch cooling oil 22 flows in from the fourth oil duct inside the motor housing 5, flows into the oil cavity between the input shaft 12 and the oil guide sleeve 13 through the oil duct hole on the input shaft 12, flows out from the groove at the end part of the input shaft 12 finally through the gap between the input shaft 12 and the first output shaft 15, flows to the second clutch 3, cools the second clutch 3, and finally flows out from two sides of the rotor bracket 1 along the inner wall of the rotor bracket 1. A second seal 21 is provided between the second clutch input shaft 12 and the transmission input shaft 20 to prevent the second clutch cooling oil 22 from being split.
A seventh oil duct is formed in the middle plate 17 along the vertical direction, and one end of the seventh oil duct is connected with a transmission control valve body; the second oil seal is arranged between the middle plate 17 and the second output shaft 16, so that a seal is formed between the middle plate 17 and the second output shaft 16, the third clutch hydraulic cylinder 18 is fixed on the side wall of the middle plate 17, a certain gap is formed between the third clutch hydraulic cylinder and the second output shaft 16, the third clutch cooling oil 23 flows out of the transmission control valve and then flows in along a seventh oil duct of the middle plate 17, flows into the third clutch through the gap between the third clutch hydraulic cylinder 18 and the second output shaft 16, the third clutch is cooled, and finally the cooling oil flows out of two sides of the rotor bracket 1 along the inner wall of the rotor bracket 1.
According to the invention, the first clutch, the second clutch and the third clutch are arranged in parallel in the rotor bracket, each clutch is provided with an independent cooling oil way, and the three clutches are cooled independently, so that the problem of arrangement of the cooling oil ways of the parallel clutches is solved, and the dragging loss of the clutches is effectively reduced.
The sequence of the above embodiments is only for convenience of description, and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A wet three-clutch cooling oil way is characterized in that the wet three-clutch comprises a motor shell, a front shell, a middle plate, a rotor bracket, a first clutch, a second clutch and a third clutch;
the upper end of the motor shell is fixed on the front shell;
the end part, close to the input shaft, of the motor shell extends a preset distance along the axial direction of the input shaft to form a lower extension part, and the input shaft is rotatably supported in the lower extension part; the end part of the motor housing, which is far away from the input shaft, also extends for a preset distance along the axial direction of the input shaft to form an upper extension part, and the upper extension part is fixed on the front housing; the right end of the front shell is fixedly provided with the middle plate;
the front shell is provided with a first oil passage along the horizontal direction, the motor shell is provided with a third oil passage along the vertical direction, one end of the first oil passage of the front shell is communicated with the transmission control valve, the other end of the first oil passage of the front shell is communicated with the third oil passage of the motor shell, and after the first clutch cooling oil flows out of the transmission control valve, the first clutch cooling oil flows through the first oil passage of the front shell and enters the third oil passage on the side wall of the motor shell;
a sealed cooling oil channel is formed between the first clutch hydraulic cylinder and the motor shell;
the motor shell is internally provided with a first oil guide sleeve in an pressing mode, and a groove is formed in the first oil guide sleeve, so that a first oil cavity is formed between the oil guide sleeve and the motor shell; an oil inlet channel hole and an oil outlet channel hole are formed in the motor shell, the oil inlet channel hole and the oil outlet channel hole are communicated with the first oil cavity, an oil channel hole is also formed in the rotor support, cooling oil of the first clutch flows from a third oil channel in the motor shell to a sealing oil channel formed between the first clutch hydraulic cylinder and the motor shell, enters the first oil cavity between the motor shell and the oil guide sleeve through the oil channel hole in the motor shell, flows to an area between the two angular contact ball bearings through another oil channel hole in the motor shell, and flows to the first clutch through the oil channel hole in the rotor support;
the rotor bracket is rotatably supported on the lower extension part of the motor shell through an angular contact ball bearing;
the first clutch, the second clutch and the third clutch are arranged in the rotor bracket side by side and are cooled through separate cooling oil paths.
2. The wet three-clutch cooling oil path according to claim 1, wherein an oil guiding groove is formed in a cylinder body of the first clutch hydraulic cylinder, and a first sealing ring is arranged between the first clutch hydraulic cylinder and the motor housing, so that a sealed cooling oil channel is formed between the first clutch hydraulic cylinder and the motor housing.
3. The wet three-clutch cooling oil path according to claim 1, wherein a second oil passage is formed in a horizontal direction on the front housing, a fourth oil passage is formed in a vertical direction on the motor housing, one end of the second oil passage of the front housing is communicated with the transmission control valve, the other end of the second oil passage is communicated with the fourth oil passage of the motor housing, and the second clutch cooling oil flows through the second oil passage on the front housing to enter the fourth oil passage on the side wall of the motor housing after flowing out of the transmission control valve;
a first oil seal is arranged between the input shaft and the motor shell, so that a seal is formed between the motor shell and the input shaft, the input shaft is of a hollow shaft structure, a second oil guide sleeve is arranged in the input shaft in a pressing mode, a groove is formed in the second oil guide sleeve, a second oil cavity is formed between the input shaft and the oil guide sleeve, and meanwhile an oil duct hole is formed in the input shaft and communicated with the second oil cavity;
a certain gap is reserved between the input shaft and the first output shaft for cooling oil to flow through, and a plurality of grooves are formed in the end part of the input shaft;
the cooling oil of the second clutch flows in from a fourth oil duct in the motor shell, flows into an oil cavity between the input shaft and the oil guide sleeve through an oil duct hole on the input shaft, flows out from a groove at the end part of the input shaft through a gap between the input shaft and the first output shaft, and flows to the second clutch.
4. A wet three clutch cooling oil path according to claim 3, wherein a second seal ring is provided between the second clutch input shaft and the transmission input shaft to prevent the second clutch cooling oil from being split.
5. A wet three-clutch cooling oil path according to claim 1 or 3, wherein a horizontal extension part is formed on the middle plate, a fifth oil path and a sixth oil path are formed on the horizontal extension part of the middle plate, and the transmission control valve is communicated with the first oil path of the front housing through the fifth oil path on the middle plate; the transmission control valve is communicated with the second oil duct of the front shell through a sixth oil duct on the middle plate.
6. The wet three-clutch cooling oil path according to claim 1, wherein a seventh oil path is formed in the middle plate in a vertical direction, and one end of the seventh oil path is connected with a transmission control valve body; the second oil seal is arranged between the middle plate and the second output shaft, so that sealing is formed between the middle plate and the second output shaft, the third clutch hydraulic cylinder is fixed on the side wall of the middle plate, a certain gap is formed between the third clutch hydraulic cylinder and the second output shaft, and the third clutch cooling oil flows out of the transmission control valve and flows in along a seventh oil duct of the middle plate and flows to the third clutch through the gap between the third clutch hydraulic cylinder and the second output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710951024.9A CN107575559B (en) | 2017-10-13 | 2017-10-13 | Wet-type three-clutch cooling oil way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710951024.9A CN107575559B (en) | 2017-10-13 | 2017-10-13 | Wet-type three-clutch cooling oil way |
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| Publication Number | Publication Date |
|---|---|
| CN107575559A CN107575559A (en) | 2018-01-12 |
| CN107575559B true CN107575559B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710951024.9A Active CN107575559B (en) | 2017-10-13 | 2017-10-13 | Wet-type three-clutch cooling oil way |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021109069A1 (en) * | 2019-12-05 | 2021-06-10 | 舍弗勒技术股份两合公司 | Transmission mechanism for hybrid power system, and hybrid power system |
| CN113738786B (en) * | 2020-05-29 | 2023-03-10 | 蜂巢传动科技河北有限公司 | Power transmission system for vehicle and vehicle |
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| CN111637174A (en) * | 2020-06-30 | 2020-09-08 | 重庆神箭汽车传动件有限责任公司 | Clutch housing assembly |
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