CN113464585B - Clutch assembly for hybrid power driving device and hybrid power driving device - Google Patents

Clutch assembly for hybrid power driving device and hybrid power driving device Download PDF

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Publication number
CN113464585B
CN113464585B CN202010238434.0A CN202010238434A CN113464585B CN 113464585 B CN113464585 B CN 113464585B CN 202010238434 A CN202010238434 A CN 202010238434A CN 113464585 B CN113464585 B CN 113464585B
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China
Prior art keywords
clutch
connecting shaft
oil duct
main hub
oil
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CN202010238434.0A
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Chinese (zh)
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CN113464585A (en
Inventor
白景峰
何岩青
纪晓辉
申权
姚小宁
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Honeycomb Transmission Technology Hebei Co Ltd
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Honeycomb Transmission Technology Hebei Co Ltd
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Priority to CN202010238434.0A priority Critical patent/CN113464585B/en
Publication of CN113464585A publication Critical patent/CN113464585A/en
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    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
    • F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
    • F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
    • F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
    • F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/123—Details not specific to one of the before-mentioned types in view of cooling and lubrication
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/14—Fluid pressure control
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Abstract

The invention provides a clutch assembly for a hybrid power driving device and the hybrid power driving device, wherein the clutch assembly for the hybrid power driving device comprises: an outside clutch including a first engaging portion and a second engaging portion that are engageable and disengageable, the first engaging portion being adapted to connect with a first power source, the second engaging portion being adapted to connect with a power take-off; an inner clutch including a third engaging portion and a fourth engaging portion that are engageable and disengageable, the inner clutch being at least partially embedded inside the outer clutch in a radial direction of the hybrid drive device, the third engaging portion being connected with the first engaging portion, the fourth engaging portion being adapted to be connected with a second power source. From this, through with inside clutch at least part embedding outside clutch inside, can promote clutch components's integrated level, can effectively reduce clutch components's axial space, be favorable to clutch components's processing and assembly.

Description

Clutch assembly for hybrid power driving device and hybrid power driving device
Technical Field
The invention relates to the technical field of driving devices, in particular to a clutch assembly for a hybrid driving device and the hybrid driving device with the clutch assembly for the hybrid driving device.
Background
In the related art, the hybrid power driving device is a core part of a hybrid electric vehicle, the hybrid power driving device is provided with a clutch assembly, the integration level of the clutch assembly is low, the axial space is large, and the assembly of the clutch assembly is not facilitated.
Disclosure of Invention
In view of this, the present invention provides a clutch assembly for a hybrid drive device, which can solve the problem of a large axial space of the clutch assembly and also solve the problem of inconvenient assembly of the clutch assembly.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a clutch assembly for a hybrid drive comprising: an outside clutch including a first engaging portion and a second engaging portion that are engageable and disengageable, the first engaging portion being adapted to connect with a first power source, the second engaging portion being adapted to connect with a power take-off; an inner clutch including a third engaging portion and a fourth engaging portion that are engageable and disengageable, the inner clutch being at least partially embedded inside the outer clutch in a radial direction of the hybrid drive device, the third engaging portion being connected with the first engaging portion, the fourth engaging portion being adapted to be connected with a second power source.
In some examples of the invention, the outboard clutch includes: a first outer shell portion connected with the first joint portion and a first inner shell portion connected with the second joint portion, wherein the inner clutch is at least partially embedded within the first inner shell portion.
In some examples of the invention, the inboard clutch includes: a second housing portion coupled to the third joint portion and a second inner housing portion coupled to the fourth joint portion, wherein the second housing portion is further coupled to the first housing portion.
In some examples of the invention, a portion of the second housing portion extends into the first housing portion and another portion is beyond the open end and connects with the first housing portion.
In some examples of the present invention, the second housing part is connected to the main hub, a first driving oil chamber is formed in the outer clutch, a second driving oil chamber is formed in the inner clutch, the first driving oil chamber is used for driving a first actuating piston to change the engaging and disengaging state of the outer clutch, and the second driving oil chamber is used for driving a second actuating piston to change the engaging and disengaging state of the inner clutch.
In some examples of the present invention, a first balance oil chamber for balancing the first driving oil chamber is further formed in the outer clutch, a second balance oil chamber for balancing the second driving oil chamber is formed in the inner clutch, a first balance elastic member is further disposed in the first balance oil chamber, and a second balance elastic member is further disposed in the second balance oil chamber.
In some examples of the present invention, the clutch assembly for a hybrid drive apparatus further includes: the main hub is sleeved on the connecting shaft, the connecting shaft is connected with the second inner shell, the power output end is constructed as an output shaft, and the connecting shaft is sleeved on the output shaft.
In some examples of the present invention, the output shaft is provided with an output shaft first oil passage, an output shaft second oil passage, and an output shaft third oil passage, the connecting shaft is provided with a connecting shaft first oil passage, a connecting shaft second oil passage, and a connecting shaft third oil passage, the main hub is provided with a main hub first oil passage, a main hub second oil passage, and a main hub third oil passage, the output shaft first oil passage, the connecting shaft first oil passage, and the main hub first oil passage are sequentially connected, and the main hub first oil passage is connected with the first driving oil chamber, the output shaft second oil passage, the connecting shaft second oil passage, and the main hub second oil passage are sequentially connected, and the main hub second oil passage is connected with the second driving oil chamber, the output shaft third oil passage, the connecting shaft third oil passage, and the main hub third oil passage are sequentially connected, and the main hub third oil passage is configured as a bifurcated oil passage and is respectively connected with the first balance oil chamber and the second balance oil chamber.
In some examples of the present invention, a first bearing for reducing friction of the main hub with respect to the connecting shaft is disposed between the main hub and the connecting shaft, a second bearing for reducing friction of the connecting shaft with respect to the output shaft is disposed between the connecting shaft and the output shaft, a connecting shaft lubrication oil passage is disposed on the connecting shaft, and an output shaft lubrication oil passage is disposed on the output shaft.
Compared with the prior art, the clutch assembly for the hybrid power driving device has the following advantages:
according to the clutch component for the hybrid power driving device, the inner clutch is at least partially embedded into the outer clutch, so that the integration level of the clutch component can be improved, the axial space of the clutch component can be effectively reduced, and the processing and the assembly of the clutch component are facilitated.
Another object of the present invention is to provide a hybrid drive device.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a hybrid drive device includes: a first power source; a second power source; the clutch assembly is used for the hybrid power driving device, an outer clutch of the clutch assembly is connected with the first power source, and an inner clutch of the clutch assembly is connected with the second power source.
The advantages of the hybrid driving device and the clutch assembly for the hybrid driving device are the same as those of the prior art, and are not described in detail herein.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a cross-sectional view of a clutch assembly according to an embodiment of the present invention;
fig. 2 is an enlarged view of a point a in fig. 1.
Description of reference numerals:
a clutch assembly 10;
an outside clutch 1; a first engaging portion 11; a second engaging portion 12; a first housing part 13; a first inner housing portion 14; an outer clutch snap ring 15; a connecting hub 16; an outer clutch seal 17; an outboard clutch piston snap ring 18; a first actuator piston support plate 19; an outboard clutch balance piston 191; a first driving oil chamber 31, a first actuating piston 33, a first balance oil chamber 35, a first balance elastic member 37; a first lubrication gap 44;
an inner clutch 2; the third engaging portion 21; the fourth engaging portion 22; the second housing section 23; the second inner housing portion 24; an inner clutch piston snap ring 25; an inner clutch seal ring 26; a second actuator piston 27; an inner clutch snap ring 28; a second drive oil chamber 32, a second balance oil chamber 36; a second elastic member 38; a second lubrication gap 46;
a main hub 3; the main hub first oil passage 39; a main hub second oil passage 391; a main hub third oil passage 392; an oil seal 393; a main hub snap ring 394; a main hub bearing 395; a first bearing 45;
a connecting shaft 4; the connecting shaft first oil passage 41; the connecting shaft second oil passage 42; the connecting shaft third oil passage 43; a second bearing 47; connecting shaft lubrication passages 48; a connecting shaft seal ring 49;
an output shaft 5; the output shaft first oil passage 51; the output shaft second oil passage 52; the output shaft third oil passage 53; an output shaft lubrication oil passage 54; an output shaft seal ring 55;
a housing 6; a water jacket 61; a water jacket seal ring 62; a housing snap ring 63;
a thrust bearing 7;
a first power source 20; a motor stator 201; the motor rotor 202.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 and 2, a clutch assembly 10 for a hybrid drive apparatus according to an embodiment of the present invention, the clutch assembly 10 including: an outer clutch 1 and an inner clutch 2. The outer clutch 1 may comprise a first engagement portion 11 and a second engagement portion 12 which are engageable and disengageable, that is, the first engagement portion 11 and the second engagement portion 12 may be engaged, the first engagement portion 11 and the second engagement portion 12 may also be disengaged, the first engagement portion 11 is adapted to be connected to the first power source 20, and the second engagement portion 12 is adapted to be connected to the power take-off. The inner clutch 2 comprises a third engagement portion 21 and a fourth engagement portion 22 which are engageable and disengageable, it being also understood that the third engagement portion 21 and the fourth engagement portion 22 are engageable and the third engagement portion 21 and the fourth engagement portion 22 are disengageable, the inner clutch 2 being at least partially embedded inside the outer clutch 1 in the radial direction of the hybrid drive, the third engagement portion 21 being connected to the first engagement portion 11 and the fourth engagement portion 22 being adapted to be connected to a second power source. It should be noted that the first power source 20 may be provided as a driving motor, the second power source may be provided with an engine, and the clutch assembly 10 may be driven by the driving motor, the engine, or both the driving motor and the engine.
In the prior art, the arrangement mode of the hybrid power driving device is the following two technical schemes, one scheme is that a double clutch, a power synthesis device and a speed changer are separately arranged, and the defects are that the number of parts for connecting a transmission mechanism is large, the axial space of a clutch component is large, the assembly of the clutch component is difficult, and therefore the assembly of the hybrid power driving device is difficult. The other is a high-integration arrangement mode, the core composition structure of the hybrid power driving device is a planetary gear mechanism, and the hybrid power driving device has the defect that the structures of a driving motor and an engine need to be redesigned, so that the manufacturing cost of the hybrid power driving device is increased.
In the application, the inner clutch 2 is at least partially embedded into the outer clutch 1 in the radial direction of the hybrid power driving device, so that the integration level of the clutch assembly 10 can be improved, the axial space of the clutch assembly 10 can be effectively reduced, and the processing and the assembly of the clutch assembly 10 are facilitated. And, compared with the prior art, driving motor and engine do not need to design again just can assemble with the clutch pack 10 of this application, and processing is convenient, can reduce the manufacturing cost of clutch pack 10 to can reduce hybrid drive's manufacturing cost, also can make the control strategy of clutch pack 10 easily realize. Simultaneously, through with inside clutch 2 at least partially imbed outside clutch 1 inside, be favorable to lubricating oil to lubricate, cool off outside clutch 1 and inside clutch 2 simultaneously, can improve the fluid utilization ratio.
Therefore, the inner clutch 2 is at least partially embedded into the outer clutch 1, the integration level of the clutch assembly 10 can be improved, the axial space of the clutch assembly 10 can be effectively reduced, and the processing and the assembly of the clutch assembly 10 are facilitated.
In some embodiments of the present invention, as shown in fig. 1, the outer clutch 1 may include: the first housing part 13 and the first inner housing part 14, the first housing part 13 is connected with the first joint part 11, the first inner housing part 14 is connected with the second joint part 12, wherein the inner clutch 2 is at least partially embedded in the first inner housing part 14, the arrangement can realize the working purpose that the inner clutch 2 is at least partially embedded in the outer clutch 1 in the radial direction of the hybrid power driving device, and the arrangement mode of the outer clutch 1 and the inner clutch 2 can be more reasonable.
Also, as shown in fig. 1, the clutch assembly 10 may further include: the water jacket 61 and the water jacket sealing ring 62 are pressed in the shell 6, the water jacket sealing ring 62 is mounted on the water jacket 61, and the water jacket 61 and the shell 6 can form a water-cooling circulation space, so that the driving motor can be cooled, and the technical effect of cooling the driving motor can be achieved. Driving motor includes motor stator 201 and electric motor rotor 202, motor stator 201 installs on water jacket 61, electric motor rotor 202 pressure equipment is on first shell portion 13, it can make electric motor rotor 202 and first shell portion 13 constitute a whole to set up like this, can make clutch pack 10's structure compacter, can improve the space utilization in clutch pack 10, be favorable to lubricating oil to lubricate outside clutch 1 and inboard clutch 2 simultaneously more, the cooling, simultaneously, the fluid of throwing away in the outside clutch 1 can cool off electric motor rotor 202, the realization is lubricated and refrigerated technological effect with the low cost high efficiency, thereby can further improve the utilization ratio of fluid.
In some embodiments of the present invention, as shown in fig. 1, the inner clutch 2 may include: a second housing part 23 and a second inner housing part 24, the second housing part 23 being connected with the third joint part 21, the second inner housing part 24 being connected with a fourth joint part, wherein the second housing part 23 is further connected with the first housing part 13 through the main hub 3.
In some embodiments of the invention, as shown in fig. 1, a portion of the second housing section 23 extends into the first housing section 14, and another portion of the second housing section 23 is connected to the first housing section 13 outside the open end via the main hub 3, such that power can be transmitted between the second housing section 23 and the first housing section 13.
In some embodiments of the present invention, as shown in fig. 1, the main hub 3 may be connected to the second housing part 23, a first driving oil chamber 31 is formed on the outer clutch 1, a second driving oil chamber 32 is formed on the inner clutch 2, the first driving oil chamber 31 is used to drive the first actuating piston 33 to change the engaged and disengaged state of the outer clutch 1, and the second driving oil chamber 32 is used to drive the second actuating piston 27 to change the engaged and disengaged state of the inner clutch 2. Wherein, the first driving oil chamber 31 can drive the first executing piston 33 to drive the first engaging portion 11 and the second engaging portion 12 to be engaged and disengaged, and the first driving oil chamber 31 can drive the second executing piston 27 to drive the third engaging portion 21 and the fourth engaging portion 22 to be engaged and disengaged.
The first engaging portion 11 may be a steel plate, the second engaging portion 12 may be a friction plate, and the outer clutch 1 may further include: an outer clutch snap ring 15, a coupling hub 16, an outer clutch seal ring 17, an outer clutch piston snap ring 18 and a first actuator piston support plate 19. The first housing part 13 is connected with the main hub 3 by welding, the first joint part 11 is mounted on the first housing part 13 through an outer clutch snap ring 15 and splines, the engagement and disengagement of the first joint part 11 and the second joint part 12 are realized by the movement of a first actuating piston 33, the first actuating piston 33, a first actuating piston support plate 19, an outer clutch seal ring 17 and the main hub 3 jointly define a first driving oil chamber 31, the first actuating piston support plate 19 is fixed on the main hub 3 through an outer clutch piston snap ring 18, the outer clutch seal ring 17 is mounted in the main hub 3, after the oil flows into the first driving oil chamber 31, the first actuating piston 33 can be driven to move towards the first joint part 11 and the second joint part 12, the first joint part 11 and the second joint part 12 can be driven to engage, and after the oil flows out of the first driving oil chamber 31, the first actuating piston 33 can move towards a direction away from the first joint part 11 and the second joint part 12, so that the first joint part 11 and the second joint part 12 are disengaged.
Also, the third engaging portion 21 may be provided as a steel plate, the fourth engaging portion 22 may be provided as a friction plate, and the inner clutch 2 may further include: an inner clutch piston snap ring 25, an inner clutch seal ring 26, a second actuator piston 27 and an inner clutch snap ring 28. The third joint part 21 is assembled on the second housing part 23 through an inner clutch snap ring 28, the second housing part 23 can be welded with the main hub 3, the second actuating piston 27, the inner clutch seal ring 26 and the main hub 3 jointly define a second actuating oil chamber 32, after the oil flows into the second actuating oil chamber 32, the second actuating piston 27 can be driven to move towards the third joint part 21 and the fourth joint part 22, the third joint part 21 and the fourth joint part 22 can be driven to be jointed, and after the oil flows out of the second actuating oil chamber 32, the second actuating piston 27 can be driven to move towards a direction far away from the third joint part 21 and the fourth joint part 22, so that the third joint part 21 and the fourth joint part 22 are separated.
In some embodiments of the present invention, as shown in fig. 1, a first balance oil chamber 35 for balancing the first driving oil chamber 31 may be further formed on the outer clutch 1, a second balance oil chamber 36 for balancing the second driving oil chamber 32 may be formed on the inner clutch 2, a first balance elastic member 37 may be further disposed in the first balance oil chamber 35, and a second balance elastic member 38 may be further disposed in the second balance oil chamber 36.
It should be noted that the outer clutch 1 may further include: the outer clutch balance piston 191, the first actuating piston 33, the outer clutch balance piston 191 and the main hub 3 jointly enclose a first balance oil chamber 35, wherein when the outer clutch 1 works, centrifugal force is generated after oil enters the first driving oil chamber 31, centrifugal force is generated after the oil enters the first balance oil chamber 35, the centrifugal force of the oil in the first driving oil chamber 31 and the centrifugal force of the oil in the first balance oil chamber 35 can be mutually offset, so that the first actuating piston 33 moves more stably, and the first joint part 11 and the second joint part 12 can be stably jointed. Also, the first balance elastic member 37 may be provided as a spring, the outer clutch balance piston 191 is fixed to the main hub 3 by the spring force of the first balance elastic member 37, the first balance elastic member 37 is installed between the outer clutch balance piston 191 and the first actuating piston 33, and the first balance elastic member 37 may provide power for the first engagement portion 11 and the second engagement portion 12 to be disengaged when the first engagement portion 11 and the second engagement portion 12 are disengaged.
The inner clutch 2 may further include: the inner clutch 2 balance piston, the inner clutch 2 balance piston can be fixed on the main hub 3 through the inner clutch piston snap ring 25 and the second balance elastic piece 38, the inner clutch 2 balance piston, the second actuating piston 27 and the main hub 3 jointly limit a second balance oil chamber 36,
when the inner clutch 2 works, centrifugal force is generated after oil enters the second driving oil chamber 32, centrifugal force is generated after the oil enters the second balance oil chamber 36, the centrifugal force of the oil in the second driving oil chamber 32 and the centrifugal force of the oil in the second balance oil chamber 36 can be offset with each other, and therefore the second execution piston 27 can move more stably, and the third joint part 21 and the fourth joint part 22 can be stably jointed. Also, the second balance elastic member 38 may be provided as a spring, the second balance elastic member 38 is installed between the balance piston of the inner clutch 2 and the second actuating piston 27, and the second balance elastic member 38 may power the third engagement part 21 and the fourth engagement part 22 to be separated when the third engagement part 21 and the fourth engagement part 22 are separated.
In some embodiments of the present invention, as shown in fig. 1, the clutch assembly 10 may further include: connecting shaft 4, main wheel hub 3 cover are established on connecting shaft 4, and connecting shaft 4 links to each other with second inner shell portion 24, for example: the connecting shaft 4 and the second inner shell 24 can be welded together, the power output end is constructed as the output shaft 5, the connecting shaft 4 is sleeved on the output shaft 5, the structure of the clutch assembly 10 can be more compact due to the arrangement, the axial space of the clutch assembly 10 can be further reduced, and therefore the clutch assembly 10 is more beneficial to processing and assembling. Wherein the second engaging portion 12 can be spline-mounted on the first inner housing portion 14, the first inner housing portion 14 can be welded with the connecting hub 16, and the connecting hub 16 can be spline-connected with the output shaft 5 for inputting power to the transmission.
In some embodiments of the present invention, as shown in fig. 1 and 2, the output shaft 5 may be provided with an output shaft first oil passage 51, an output shaft second oil passage 52, and an output shaft third oil passage 53, the connecting shaft 4 may be provided with a connecting shaft first oil passage 41, a connecting shaft second oil passage 42, and a connecting shaft third oil passage 43, the main hub 3 may be provided with a main hub first oil passage 39, a main hub second oil passage 391, and a main hub third oil passage 392, the output shaft first oil passage 51, the connecting shaft first oil passage 41, and the main hub first oil passage 39 may be sequentially connected, that is, the output shaft first oil passage 51, the connecting shaft first oil passage 41, and the main hub first oil passage 39 are sequentially connected, and the main hub first oil passage 39 is connected to the first driving oil chamber 31, and oil may flow through the output shaft first oil passage 51, the connecting shaft first oil passage 41, and the main hub first oil passage 39 in sequence and then flow into the first driving oil chamber 31, and the oil may drive the first actuating piston 33 to move to engage the first engaging portion 11 and the second engaging portion 12, and oil may flow out of the first actuating piston 39 and then to disengage the first balance portion 12 to act as the first balance portion 37 to engage the second balance portion 12.
The output shaft second oil passage 52, the connecting shaft second oil passage 42 and the main hub second oil passage 391 are sequentially connected, it can also be understood that the output shaft second oil passage 52, the connecting shaft second oil passage 42 and the main hub second oil passage 391 are sequentially communicated, the main hub second oil passage 391 is connected with the second driving oil chamber 32, oil flows into the second driving oil chamber 32 after sequentially flowing through the output shaft second oil passage 52, the connecting shaft second oil passage 42 and the main hub second oil passage 391, the oil can drive the second actuating piston 27 to move to enable the third joint 21 and the fourth joint 22 to be jointed, and after the oil flows out of the second driving oil chamber 32 from the main hub second oil passage 391, the third joint 21 and the fourth joint 22 are separated under the action of the second balance elastic element 38.
The output shaft third oil passage 53, the connecting shaft third oil passage 43 and the main hub third oil passage 392 are sequentially connected, and the main hub third oil passage 392 is configured as a bifurcated oil passage which is respectively connected with the first balance oil chamber 35 and the second balance oil chamber 36, it should be noted that the bifurcated oil passage may have two oil passages, one of which is connected with the first balance oil chamber 35, and the other of which is connected with the second balance oil chamber 36, and oil may flow into the first balance oil chamber 35 and the second balance oil chamber 36 through the bifurcated oil passage, so that centrifugal force of the oil in the first driving oil chamber 31 and the second driving oil chamber 32 may be offset. In addition, the oil in the first and second balance oil chambers 35 and 36 may flow out of the first and second balance oil chambers 35 and 36 through the bifurcated oil passages.
In some embodiments of the present invention, as shown in fig. 1 and fig. 2, a first lubrication gap 44 may be disposed between the main hub 3 and the connecting shaft 4, a first bearing 45 for reducing friction of the main hub 3 with respect to the connecting shaft 4 may be disposed in the first lubrication gap 44, the first bearing 45 may be capable of radially positioning the main hub 3, wherein one end of the connecting shaft 4 may be connected to an engine to achieve power transmission of the engine, and a connecting shaft sealing ring 49 may be disposed at a connection point between the connecting shaft first oil passage 41 and the main hub first oil passage 39, a connection point between the connecting shaft second oil passage 42 and the main hub second oil passage 391, and a connection point between the connecting shaft third oil passage 43 and the main hub third oil passage 392, so as to seal a connection point between the connecting shaft first oil passage 41 and the main hub first oil passage 39, a connection point between the connecting shaft second oil passage 42 and the main hub second oil passage 391, and a connection point between the connecting shaft 43 and the main hub third oil passage 392.
Also, as shown in fig. 1, the clutch assembly 10 may further include: the output shaft sealing ring 55 may be disposed at the joint of the output shaft first oil passage 51 and the connecting shaft first oil passage 41, the joint of the output shaft second oil passage 52 and the connecting shaft second oil passage 42, and the joint of the output shaft third oil passage 53 and the connecting shaft third oil passage 43, so as to seal the joint of the output shaft first oil passage 51 and the connecting shaft first oil passage 41, the joint of the output shaft second oil passage 52 and the connecting shaft second oil passage 42, and the joint of the output shaft third oil passage 53 and the connecting shaft third oil passage 43.
A second lubrication gap 46 may be provided between the connecting shaft 4 and the output shaft 5, a second bearing 47 for reducing friction between the connecting shaft 4 and the output shaft 5 may be provided in the second lubrication gap 46, and the second bearing 47 may radially position the connecting shaft 4 and also may enable the connecting shaft 4 and the output shaft 5 to rotate relatively. A connecting shaft lubricating oil channel 48 can be arranged on the connecting shaft 4, an output shaft lubricating oil channel 54 can be arranged on the output shaft 5, the output shaft lubricating oil channel 54 is communicated with the second lubricating gap 46, two ends of the connecting shaft lubricating oil channel 48 are respectively communicated with the first lubricating gap 44 and the second lubricating gap 46, so that oil can flow into the clutch assembly 10 from the output shaft lubricating oil channel 54, the oil can flow to parts of the clutch assembly 10, and the parts in the clutch assembly 10 can be well lubricated.
In some embodiments of the present invention, as shown in fig. 1, the clutch assembly 10 may further include: thrust bearings 7 can be arranged between the main hub 3 and the connecting shaft 4 and between the connecting shaft 4 and the connecting hub 16, and the thrust bearings 7 can axially position the main hub 3 and the connecting shaft 4 and also can enable the main hub 3 and the connecting shaft 4 to relatively rotate.
In some embodiments of the present invention, as shown in fig. 1, the clutch assembly 10 may further include: an oil seal 393, a main hub snap ring 394 and a main hub bearing 395. The main hub 3 can provide support for the outer clutch 1 and the inner clutch 2, the oil seal 393 is installed between the main hub 3 and the shell 6, and the oil seal 393 can play a role in sealing and can prevent the hybrid power driving device from leaking oil. The main hub bearing 395 is mounted to the main hub 3 and the housing 6 by a main hub snap ring 394 and a housing snap ring 63, respectively.
It should be noted that the oil in the output shaft first oil passage 51, the connecting shaft first oil passage 41, and the main hub first oil passage 39 mainly supplies the oil pressure to the first driving oil chamber 31. The oil in the connecting shaft third oil passage 43, the output shaft third oil passage 53 and the main hub third oil passage 392 can provide lubrication and cooling for the thrust bearing 7, the first bearing 45, the second bearing 47, the main hub bearing 395, the driving motor, the inner clutch 2 and the outer clutch 1, the inner clutch 2 is at least partially embedded into the outer clutch 1 in the radial direction of the hybrid power driving device, and the oil in the connecting shaft third oil passage 43, the output shaft third oil passage 53 and the main hub third oil passage 392 can effectively lubricate and cool the inner clutch 2 and the outer clutch 1, so that the oil utilization rate can be further improved.
The power transmission path of the clutch assembly 10 is understood as follows:
when the engine is driven independently, the power transmission path is as follows: engine → connecting shaft 4 → second inner case 24 → fourth engaging portion 22 → third engaging portion 21 → second outer case 23 → main hub 3 → first outer case 13 → first inner case 14 → connecting hub 16 → output shaft 5 → transmission.
When the driving motor is driven independently, the power transmission path is as follows: the drive motor → the first case portion 13 → the first engagement portion 11 → the second engagement portion 12 → the first inner case portion 14 → the connecting hub 16 → the output shaft 5 → the transmission. The engine is started through the driving motor, so that the number of the driving motors which are independently started by the engine can be reduced, and the cost and the axial arrangement space of the clutch assembly 10 can be effectively reduced.
When the engine and the driving motor are driven together, the power transmission path is as follows: the drive motor → the first case portion 13 → the first joint portion 11 → the second joint portion 12 (and the engine → the connecting shaft 4 → the second inner case portion 24 → the fourth joint portion 22 → the third joint portion 21 → the second case portion 23 → the main hub 3 → the first case portion 13) → the first inner case portion 14 → the connecting hub 16 → the output shaft 5 → the transmission.
When the driving motor starts the engine, the power transmission path is as follows: the drive motor → the first case portion 13 → the main hub 3 → the second case portion 23 → the third joint portion 21 → the fourth joint portion 22 → the second inner case portion 24 → the connecting shaft 4 → the engine.
The hybrid drive device according to the embodiment of the invention includes: first power supply 20, second power supply and clutch assembly 10, clutch assembly 10 is clutch assembly 10 of above-mentioned embodiment, clutch assembly 10's outside clutch 1 is connected with first power supply 20, clutch assembly 10's inboard clutch 2 is connected with the second power supply, can promote clutch assembly 10's integrated level, can effectively reduce clutch assembly 10's axial space, thereby can reduce hybrid drive device's axial space, be favorable to hybrid drive device's processing and assembly.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (4)

1. A clutch assembly (10) for a hybrid drive, comprising:
an outer clutch (1), the outer clutch (1) comprising a first (11) and a second (12) engageable and disengageable engagement portion, the first engagement portion (11) being adapted to be connected to a first power source (20), the second engagement portion (12) being adapted to be connected to a power take-off;
-an inner clutch (2), the inner clutch (2) comprising a third (21) and a fourth (22) engageable and disengageable engagement portion, the inner clutch (2) being at least partially embedded inside the outer clutch (1) in the radial direction of the hybrid drive, the third engagement portion (21) being connected with the first engagement portion (11), the fourth engagement portion (22) being adapted to be connected with a second power source;
the outside clutch (1) comprises: a first housing part (13) and a first inner housing part (14), the first housing part (13) being connected to the first joint (11), the first inner housing part (14) being connected to the second joint (12), wherein the inner clutch (2) is at least partially embedded in the first inner housing part (14);
the inner clutch (2) comprises: a second housing part (23) and a second inner housing part (24), the second housing part (23) being connected with the third joint (21), the second inner housing part (24) being connected with the fourth joint (22), wherein the second housing part (23) is further connected with the first housing part (13);
the second shell part (23) is connected with a main hub (3), a first driving oil chamber (31) is formed on the outer clutch (1), a second driving oil chamber (32) is formed on the inner clutch (2), the first driving oil chamber (31) is used for driving a first execution piston (33) to change the connection and disconnection state of the outer clutch (1), and the second driving oil chamber (32) is used for driving a second execution piston (27) to change the connection and disconnection state of the inner clutch (2);
a first balance oil chamber (35) used for balancing the first driving oil chamber (31) is formed in the outer clutch (1), a second balance oil chamber (36) used for balancing the second driving oil chamber (32) is formed in the inner clutch (2), a first balance elastic part (37) is further arranged in the first balance oil chamber (35), and a second balance elastic part (38) is further arranged in the second balance oil chamber (36);
further comprising: the main hub (3) is sleeved on the connecting shaft (4), the connecting shaft (4) is connected with the second inner shell (24), the power output end is constructed as an output shaft (5), and the connecting shaft (4) is sleeved on the output shaft (5);
the output shaft (5) is provided with an output shaft first oil duct (51), an output shaft second oil duct (52) and an output shaft third oil duct (53), the connecting shaft (4) is provided with a connecting shaft first oil duct (41), a connecting shaft second oil duct (42) and a connecting shaft third oil duct (43), the main hub (3) is provided with a main hub first oil duct (39), a main hub second oil duct (391) and a main hub third oil duct (392), the output shaft first oil duct (51), the connecting shaft first oil duct (41) and the main hub first oil duct (39) are sequentially connected, the main hub first oil duct (39) is connected with the first driving oil chamber (31), the output shaft second oil duct (52), the connecting shaft second oil duct (42) and the main hub second oil duct (391) are sequentially connected, the main hub second oil duct (391) is connected with the second driving oil chamber (32), the output shaft third oil duct (53), the connecting shaft third oil duct (43) and the main hub third oil duct (392) are sequentially connected with the main hub third balance oil duct (36) and the balance oil duct (35) and the balance oil duct (392) are respectively constructed as a first balance oil duct.
2. Clutch assembly (10) for a hybrid drive according to claim 1, wherein a portion of the second housing part (23) protrudes into the first housing part (14) and another portion is outside the open end and is connected to the first housing part (13).
3. The clutch assembly (10) for a hybrid drive as claimed in claim 1, characterized in that a first bearing (45) for reducing friction of the main hub (3) against the connecting shaft (4) is provided between the main hub (3) and the connecting shaft (4), a second bearing (47) for reducing friction of the connecting shaft (4) against the output shaft (5) is provided between the connecting shaft (4) and the output shaft (5), a connecting shaft lubrication oil duct (48) is provided on the connecting shaft (4), and an output shaft lubrication oil duct (54) is provided on the output shaft (5).
4. A hybrid drive apparatus, characterized by comprising:
a first power source (20);
a second power source;
a clutch assembly (10), the clutch assembly (10) being the clutch assembly (10) for a hybrid drive of any one of claims 1-3, an outer clutch (1) of the clutch assembly (10) being connected to the first power source (20), an inner clutch (2) of the clutch assembly (10) being connected to the second power source.
CN202010238434.0A 2020-03-30 2020-03-30 Clutch assembly for hybrid power driving device and hybrid power driving device Active CN113464585B (en)

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DE102022119233A1 (en) * 2022-08-01 2024-02-01 Schaeffler Technologies AG & Co. KG Shaft for a rotor device of an electric machine and rotor device for an electric machine of a vehicle

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