CN220668194U - Stable clutch for power split type hybrid system - Google Patents
Stable clutch for power split type hybrid system Download PDFInfo
- Publication number
- CN220668194U CN220668194U CN202322304132.0U CN202322304132U CN220668194U CN 220668194 U CN220668194 U CN 220668194U CN 202322304132 U CN202322304132 U CN 202322304132U CN 220668194 U CN220668194 U CN 220668194U
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- balance
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- 239000003921 oil Substances 0.000 claims abstract description 100
- 239000010687 lubricating oil Substances 0.000 claims abstract description 31
- 230000000087 stabilizing effect Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 9
- 239000012466 permeate Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 239000010705 motor oil Substances 0.000 description 7
- 238000005381 potential energy Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model discloses a stable clutch for a power split type hybrid system, which relates to the technical field of hybrid driving of automobiles and comprises an oil supply hub, a hub shell, a pressure supply piston group and a pressure supply piston group, wherein the hub shell is attached to the outer edge of a main body of the oil supply hub; and a driving hub attached to the inner side of the hub shell and structurally matched with the hub shell; the pressure supply piston group comprises a piston disc, the outer side of the piston disc and the main hub form a pressure oil cavity, a piston shell is arranged on the inner side of the piston disc, and a balance piston forming a balance oil cavity with the piston shell is arranged in the piston shell. According to the stable clutch for the power split type hybrid system, the balance oil cavity formed by the balance piston and the piston shell is balanced, lubricating oil is pumped into the balance oil cavity through the lubricating oil port and filled in the clutch in a separated state, so that the piston shell is separated from the friction plate to the greatest extent, and on the basis of the lubricating oil, centrifugal force generated by the oil in the clutch rotating process can be effectively counteracted, balance of the clutch in the separated state is guaranteed, and a better application prospect is brought.
Description
Technical Field
The utility model relates to the technical field of hybrid driving of automobiles, in particular to a stable clutch for a power split type hybrid system.
Background
The DHT, which is a hybrid variable speed drive of an automobile, is a drive technique for adjusting the rotational speed and torque of an internal combustion engine during operation of the automobile.
In particular, a power split system based on a planetary gear set is the most important implementation mode in the technical field of hybrid driving, so that balance control of a clutch is extremely important, control precision of the split system is guaranteed, calibration of an automobile clutch is facilitated, and therefore, a stable clutch for the power split hybrid system is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a stable clutch for a power split type hybrid system, which has the advantages of oil pressure balance and the like and can effectively solve the problems in the background art.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a stable clutch for power split type mixed dynamic system comprises an oil supply hub, a hub shell attached to the outer edge of the oil supply hub main body, and further comprises
The pressure supply piston group is arranged in the oil supply hub and can balance the off-state stress of the clutch;
and a driving hub attached to the inner side of the hub shell and structurally matched with the hub shell;
the pressure supply piston group comprises a piston disc, the outer side of the piston disc and the main hub form a pressure oil cavity, a piston shell is arranged on the inner side of the piston disc, and a balance piston forming a balance oil cavity with the piston shell is arranged in the piston shell.
Preferably, the hub comprises an oil supply hub and a hub shell attached to the outer edge of the oil supply hub main body, and further comprises
The pressure supply piston group is arranged in the oil supply hub and can balance the off-state stress of the clutch;
and a driving hub attached to the inner side of the hub shell and structurally matched with the hub shell;
the pressure supply piston group comprises a piston disc, the outer side of the piston disc and the main hub form a pressure oil cavity, a piston shell is arranged on the inner side of the piston disc, and a balance piston forming a balance oil cavity with the piston shell is arranged in the piston shell;
the oil supply hub is externally connected with a spline shaft of a crankshaft of the automobile engine, the pressure supply piston group is movably connected with the inside of the oil supply hub, the main body of the hub shell is connected with the main body of the oil supply hub, the transmission hub and the hub shell form friction joint in a closed state, and the transmission hub is externally connected with a power input spline shaft of the automobile gearbox.
Preferably, the hub comprises an oil supply hub and a hub shell attached to the outer edge of the oil supply hub main body, and further comprises
The pressure supply piston group is arranged in the oil supply hub and can balance the off-state stress of the clutch;
and a driving hub attached to the inner side of the hub shell and structurally matched with the hub shell;
the pressure supply piston group comprises a piston disc, the outer side of the piston disc and the main hub form a pressure oil cavity, a piston shell is arranged on the inner side of the piston disc, and a balance piston forming a balance oil cavity with the piston shell is arranged in the piston shell;
the oil supply hub comprises a main hub, a plurality of pressure oil ports and lubricating oil ports which are respectively used for pressure engine oil inlet and lubricating engine oil inlet are formed in the middle of the main hub, and the pressure oil ports are located on the outer sides of the lubricating oil ports.
Preferably, the hub comprises an oil supply hub and a hub shell attached to the outer edge of the oil supply hub main body, and further comprises
The pressure supply piston group is arranged in the oil supply hub and can balance the off-state stress of the clutch;
and a driving hub attached to the inner side of the hub shell and structurally matched with the hub shell;
the pressure supply piston group comprises a piston disc, the outer side of the piston disc and the main hub form a pressure oil cavity, a piston shell is arranged on the inner side of the piston disc, and a balance piston forming a balance oil cavity with the piston shell is arranged in the piston shell;
the oil supply hub comprises a main hub, a plurality of pressure oil ports and lubricating oil ports for pressure engine oil inlet and lubricating engine oil inlet are formed in the middle of the main hub, and the pressure oil ports are positioned at the outer sides of the lubricating oil ports;
the plurality of lubricating oil ports and the plurality of pressure oil ports are all formed in the middle of the main hub, the lubricating oil ports are communicated with the pressure supply piston group, and the main hub is externally connected to a spline shaft of a crankshaft of an automobile engine.
Preferably, the hub shell comprises an outer shell body connected with the main hub, four friction plates and a back plate are arranged on the inner side of the outer shell body, the back plate is located on one side, far away from the main hub, of the four friction plates, a first clamping spring used for limiting the back plate is arranged on one side, far away from the four friction plates, of the back plate, and a plurality of oil holes used for lubricating oil permeation are formed in the outer wall of the outer shell body.
Preferably, one end of the outer shell close to the main hub is fixedly connected with the main hub, preferably welded, the outer walls of the four friction plates and the back plate are all in spline connection with the inner wall of the outer shell, the first clamping spring is also fixedly connected to the inner side of the outer end of the outer shell, and the first clamping spring is attached to the back plate.
Preferably, the driving hub comprises a main body inner shell, four core plates are arranged on the outer wall of the inner shell, friction plates are arranged on the left side and the right side of each core plate, four groups of inner shells and the friction plates corresponding to the four groups of inner shells are staggered with the back plate based on four friction plates, and a plurality of oil holes are formed in the inner shells.
Preferably, the four core plates are all in spline connection with the outer wall of the inner shell, the friction plates corresponding to the four core plates are respectively and fixedly connected with the left side and the right side of the inner shell, and the inner shell is externally connected with a power input spline shaft of the automobile gearbox.
Preferably, the hub comprises an oil supply hub and a hub shell attached to the outer edge of the oil supply hub main body, and further comprises
The pressure supply piston group is arranged in the oil supply hub and can balance the off-state stress of the clutch;
and a driving hub attached to the inner side of the hub shell and structurally matched with the hub shell;
the pressure supply piston group comprises a piston disc, the outer side of the piston disc and the main hub form a pressure oil cavity, a piston shell is arranged on the inner side of the piston disc, and a balance piston forming a balance oil cavity with the piston shell is arranged in the piston shell;
a plurality of groups of springs for resetting are arranged between the balance piston and the piston shell, a lip plate for sealing is arranged on the outer side of the piston disc, a lip sleeve for sealing is also arranged on the outer edge of the balance piston, and a second clamping spring for limiting is arranged at the joint of the balance piston and the main hub.
Preferably, the hub comprises an oil supply hub and a hub shell attached to the outer edge of the oil supply hub main body, and further comprises
The pressure supply piston group is arranged in the oil supply hub and can balance the off-state stress of the clutch;
and a driving hub attached to the inner side of the hub shell and structurally matched with the hub shell;
the pressure supply piston group comprises a piston disc, the outer side of the piston disc and the main hub form a pressure oil cavity, a piston shell is arranged on the inner side of the piston disc, and a balance piston forming a balance oil cavity with the piston shell is arranged in the piston shell;
a plurality of groups of springs for resetting are arranged between the balance piston and the piston shell, a lip plate for sealing is arranged on the outer side of the piston disc, a lip sleeve for sealing is also arranged on the outer edge of the balance piston, and a second clamping spring for limiting is arranged at the joint of the balance piston and the main hub;
the lip plate is fixedly connected to the outer side of the piston disc, the outer edge of the piston disc is opposite to the friction plate, the piston disc is sleeved on the outer wall of the middle of the main hub and is movably connected with the outer wall of the middle of the main hub, and a pressure oil cavity formed by the piston disc and the main hub is communicated with the plurality of pressure oil ports.
Preferably, the hub comprises an oil supply hub and a hub shell attached to the outer edge of the oil supply hub main body, and further comprises
The pressure supply piston group is arranged in the oil supply hub and can balance the off-state stress of the clutch;
and a driving hub attached to the inner side of the hub shell and structurally matched with the hub shell;
the pressure supply piston group comprises a piston disc, the outer side of the piston disc and the main hub form a pressure oil cavity, a piston shell is arranged on the inner side of the piston disc, and a balance piston forming a balance oil cavity with the piston shell is arranged in the piston shell;
a plurality of groups of springs for resetting are arranged between the balance piston and the piston shell, a lip plate for sealing is arranged on the outer side of the piston disc, a lip sleeve for sealing is also arranged on the outer edge of the balance piston, and a second clamping spring for limiting is arranged at the joint of the balance piston and the main hub;
the lip plate is fixedly connected to the outer side of the piston disc, the outer edge of the piston disc is opposite to the friction plate, the piston disc is sleeved on the outer wall of the middle of the main hub and is movably connected with the outer wall of the middle of the main hub, and a pressure oil cavity formed by the piston disc and the main hub is communicated with a plurality of pressure oil ports;
the balance oil cavity formed by the piston disc and the balance piston is communicated with a plurality of lubricating oil ports, the lip sleeve is sleeved at the outer edge of the balance piston, the inner wall of the lip sleeve piston shell is attached, and two ends of the springs are respectively and fixedly connected to the balance piston and the opposite sides of the piston shell.
Preferably, the balance piston is also sleeved on the outer wall of the main hub and is movably connected with the main hub, the second clamp spring is fixedly connected with the outer wall of the main hub, and the second clamp spring is positioned at the outer side of the joint of the balance piston and the main hub.
Compared with the prior art, the utility model provides the stable clutch for the power split type hybrid system, which has the following beneficial effects:
according to the stable clutch for the power split type hybrid system, through the pressure supply piston group, the balance oil cavity formed by the balance piston and the piston shell is formed, lubricating oil is pumped into the balance oil cavity through the lubricating oil port and filled in the clutch in a separated state, so that the piston shell is separated from the friction plate to the greatest extent, and on the basis of the lubricating oil, the centrifugal force generated in the rotation process of the clutch can be effectively counteracted, and the balance of the clutch in the separated state is ensured.
Drawings
FIG. 1 is a structural profile of a stabilizing clutch for a power split hybrid system according to the present utility model.
FIG. 2 is a torque transfer schematic of a stabilizing clutch for a power split hybrid system according to the present utility model.
Fig. 3 is a schematic diagram of an oil circuit of a stabilizing clutch for a power split hybrid system according to the present utility model.
In the figure:
the dashed arrow is a torque transfer schematic;
solid line hollow arrows indicate lubrication oil paths;
solid arrows indicate pressure oil paths;
1. an oil supply hub; 2. a hub shell; 3. a drive hub; 4. a pressure supply piston group;
11. a main hub; 12. a lubrication oil port; 13. a pressure oil port;
21. an outer housing; 22. a friction plate; 23. a back plate; 24. a clamp spring I;
31. an inner housing; 32. a core plate; 33. a friction plate;
41. a piston disc; 42. a piston housing; 43. a balance piston; 44. a spring; 45. a lip plate; 46. a lip sleeve; 47. and a second clamping spring.
Description of the embodiments
In order that the manner in which the above-recited features, advantages, objects and advantages of the present utility model are obtained, a more particular description of the utility model briefly summarized above may be had by reference to the embodiments thereof which are illustrated in the appended drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order to overcome the defects in the prior art, as shown in fig. 1, the utility model provides a stable clutch for a power split type hybrid system, an oil supply hub 1 is externally connected with a spline shaft of an automobile engine crankshaft, a pressure supply piston group 4 is movably connected inside the oil supply hub 1, a main body of a hub shell 2 is connected with a main body of the oil supply hub 1, a driving hub 3 and the hub shell 2 form friction joint in a closed state, and the driving hub 3 is externally connected with a power input spline shaft of an automobile gearbox.
Specifically, and as shown in fig. 1, an oil supply hub 1 for a stable clutch of a power split type hybrid system is provided, a plurality of lubricating oil ports 12 and pressure oil ports 13 are all formed in the middle of a main hub 11, the lubricating oil ports 12 are communicated with a pressure supply piston group 4, and the main hub 11 is externally connected to a spline shaft of a crankshaft of an automobile engine.
Specifically, as shown in fig. 1, a hub shell 2 for a stabilizing clutch of a power split type hybrid system is provided, wherein an end of an outer shell 21 adjacent to a main hub 11 is fixedly connected with the hub shell, preferably welded, and outer walls of four friction plates 22 and a back plate 23 are respectively in spline connection with an inner wall of the outer shell 21, a first clamping spring 24 is also fixedly connected to an inner side of an opposite outer end of the outer shell 21, and the first clamping spring 24 is attached to the back plate 23.
Specifically, as shown in fig. 1, a driving hub 3 for a stabilizing clutch of a power split type hybrid system is provided, four core plates 32 are all in spline connection with the outer wall of an inner housing 31, friction plates 33 corresponding to the four core plates are respectively and fixedly connected with the left and right sides of the inner housing 31, and the inner housing 31 is externally connected with a power input spline shaft of an automobile gearbox.
Specifically, as shown in fig. 1, a pressure supply piston 4 for a stable clutch of a power split type hybrid system, a lip 45 is fixedly connected to the outer side of a piston disc 41, the outer edge of the piston disc 41 is opposite to a friction plate 22, the piston disc 41 is sleeved on the middle outer wall of a main hub 11 and is movably connected with the middle outer wall of the main hub 11, and a pressure oil cavity formed by the piston disc 41 and the main hub 11 is communicated with a plurality of pressure oil ports 13;
the balance oil cavity formed by the piston disc 41 and the balance piston 43 is communicated with the plurality of lubricating oil ports 12, the lip sleeve 46 is sleeved at the outer edge of the balance piston 43, the inner wall of the piston shell 42 of the lip sleeve 46 is attached, and two ends of the plurality of springs 44 are respectively and fixedly connected to the opposite sides of the balance piston 43 and the piston shell 42;
the balance piston 43 is also sleeved on the outer wall of the main hub 11 and movably connected with the main hub 11, the second clamp spring 47 is fixedly connected with the outer wall of the main hub 11, and the second clamp spring 47 is positioned on the outer side of the joint of the balance piston 43 and the main hub 11.
It should be noted that, the present utility model is a stable clutch for a power split type hybrid system, if the clutch needs to be controlled to be in a closed state in the starting process of an automobile, that is, the automobile transmission unit is normally connected and driven, the pressure engine oil is fed from the pressure oil port 13, and then the pressure engine oil is continuously pumped into a pressure oil cavity formed by the piston disc 41 and the main hub 11, as shown in fig. 3;
in the above process, the press oil presses the piston disc 41, so that the piston disc 41 slides between the outer shells 21, and then the outer edge of the piston disc 41 presses one friction plate 22 closest to the piston disc 41, so as to drive the outer shells 21 to slide on the outer wall of the spline shaft corresponding to the outer shell, and the four friction plates 22 are connected with eight groups of friction plates 33 to form friction engagement, so that the connection transmission of the inner shells 31 is realized, and the torque transmission illustration shown in fig. 2 is realized.
In the process of supplying the press oil, the piston disc 41 applies pressure, the piston housing 42 is synchronously pressed together, and at the same time, the springs 44 are synchronously pressed, and the springs 44 have certain elastic potential energy.
If the clutch is required to be controlled to be in a disengaged state, that is, the transmission of the automobile transmission unit is disconnected, the pressure engine oil in the pressure oil cavity flows out and is released, so that the elastic potential energy of the pressure of the plurality of springs 44 is increased, the plurality of springs 44 are required to release the elastic potential energy to rebound so as to drive the piston housing 42 to reset, the piston housing 42 drives the piston disc 41 to reset, and accordingly the outer wall of the spline shaft corresponding to the piston housing is indirectly slid and reset through the outer housing 21, and the same four friction plates 22 are separated from the friction plates 33 corresponding to the outer wall of the spline shaft, so that friction engagement is disconnected.
During the clutch is in the off state, the lubricating oil is pumped in by the lubricating oil port 12, and the balance oil cavity formed by the balance piston 43 and the piston disc 41 is filled with lubricating oil, so that under the action of the second clamp spring 47, the balance piston 43 is pressed in the balance oil cavity, the balance piston 43 is static, and the piston disc 41 is separated from the friction plate 22 to the greatest extent in the off state, so that the clutch is balanced in the off state;
the inside of the clutch is filled with lubricating oil, and the lubricating oil is circulated from the inside of the clutch to the outside by providing oil holes in the inner housing 31 to the four friction plates 22 and the friction plates 33 to lubricate and cool the friction plates 33 and the friction plates 22, and providing oil holes at the outer periphery of the outer housing 21 as shown in fig. 3.
In the off state of the clutch, the piston disc 41 is not pressed any more, and is indirectly limited by the first clamping spring 24, so that the four friction plates 22 and the back plate 23 are completely separated from the corresponding four groups of friction plates 33 under the condition that the lubricating oil is balanced and pressed.
Wherein, during the sliding process of the piston disc 41 and the piston shell 42, the lip sleeve 46 and the lip plate 45 play a sealing role, so that the lubricating oil and the pressing oil are effectively isolated;
in the clutch, in the off state, lubricating oil is pumped into the balance oil cavity through the lubricating oil port 12 and filled in the balance oil cavity formed by the balance piston 43 and the piston housing 42, so that the piston housing 42 is separated from the friction plate 22 to the greatest extent, and based on the lubricating oil, the centrifugal force generated by the oil in the clutch rotation process can be effectively counteracted, so that the balance of the clutch in the off state can be ensured.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing description merely illustrates the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (8)
1. A stabilizing clutch for a power split hybrid system, comprising an oil supply hub (1) and a hub housing (2) attached to the outer periphery of the body of the oil supply hub (1), characterized in that: and also comprises
The pressure supply piston group (4) is arranged in the oil supply hub (1) and can balance the off-state stress of the clutch;
and a driving hub (3) attached to the inside of the hub shell (2) and structurally matched with the hub shell;
the pressure supply piston group (4) comprises a piston disc (41), the outer side of the piston disc (41) and the main hub (11) form a pressure oil cavity, a piston shell (42) is arranged on the inner side of the piston disc (41), and a balance piston (43) forming a balance oil cavity with the piston shell is arranged in the piston shell (42).
2. A stabilizing clutch for a power split hybrid system as set forth in claim 1, wherein: the oil supply hub (1) comprises a main hub (11), wherein the middle part of the main hub (11) is provided with a plurality of pressure oil ports (13) and lubricating oil ports (12) which are respectively used for pressure oil inlet and lubricating oil inlet, and the pressure oil ports (13) are positioned at the outer sides of the lubricating oil ports (12).
3. A stabilizing clutch for a power split hybrid system as claimed in claim 2, wherein: the hub shell (2) comprises an outer shell (21) connected with the main hub (11), four friction plates (22) and a back plate (23) are arranged on the inner side of the outer shell (21), and the back plate (23) is located on one side, far away from the main hub (11), of the four friction plates (22).
4. A stabilizing clutch for a power split hybrid system as set forth in claim 3, wherein: one side of the back plate (23) far away from the four friction plates (22) is provided with a first clamping spring (24) used for limiting the back plate, and the outer wall of the outer shell (21) is provided with a plurality of oil holes used for lubricating oil to permeate.
5. A stabilizing clutch for a power split hybrid system as set forth in claim 4, wherein: the driving hub (3) comprises a main body inner shell (31) of the driving hub, four core plates (32) are arranged on the outer wall of the inner shell (31), and friction plates (33) are arranged on the left side and the right side of each core plate (32).
6. A stabilizing clutch for a power split hybrid system as set forth in claim 5, wherein: the four groups of the inner shells (31) and the friction plates (33) corresponding to the inner shells are staggered and spaced from the back plate (23) based on the four friction plates (22), and the inner shells (31) are also provided with a plurality of oil holes.
7. A stabilizing clutch for a power split hybrid system as set forth in claim 6, wherein: a plurality of groups of springs (44) for resetting are arranged between the balance piston (43) and the piston shell (42), and a lip plate (45) for sealing is arranged on the outer side of the piston disc (41).
8. A stabilizing clutch for a power split hybrid system as set forth in claim 7, wherein: the outer edge of the balance piston (43) is also provided with a lip sleeve (46) for sealing, and a second clamping spring (47) for limiting is arranged at the joint of the balance piston (43) and the main hub (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322304132.0U CN220668194U (en) | 2023-08-28 | 2023-08-28 | Stable clutch for power split type hybrid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322304132.0U CN220668194U (en) | 2023-08-28 | 2023-08-28 | Stable clutch for power split type hybrid system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220668194U true CN220668194U (en) | 2024-03-26 |
Family
ID=90334888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322304132.0U Active CN220668194U (en) | 2023-08-28 | 2023-08-28 | Stable clutch for power split type hybrid system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220668194U (en) |
-
2023
- 2023-08-28 CN CN202322304132.0U patent/CN220668194U/en active Active
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