Hydraulic clutch assembly and hybrid power system

Abstract

The hydraulic clutch assembly comprises a hydraulic oil pump, a proportional valve assembly and a hydraulic clutch, an oil outlet of the hydraulic oil pump is directly communicated with an oil inlet of the proportional valve assembly, and an oil outlet of the proportional valve assembly is communicated with an oil inlet of the hydraulic clutch; therefore, the overall structure is compact, the oil way arrangement space can be saved, and the size of the hybrid power system can be reduced.

Description

Technical Field

[0001] This invention relates to the field of hybrid power system technology, and in particular to a hydraulic clutch assembly and a hybrid power system. Background Technology

[0002] The motorcycle power system employs P1 and P2 architectures, coupled with a high-voltage electric platform, enabling multiple power output modes such as pure electric, pure gasoline, range extender, and hybrid. This achieves a balance between power and economy in different usage scenarios, resulting in significant power enhancement and good fuel economy. However, unlike automobiles, motorcycles have extremely compact spaces. Arranging the aforementioned power system requires a high degree of integration and minimal space constraints, posing a challenge to the layout of the hydraulic circuitry within the hydraulic clutch assembly.

[0003] Therefore, how to make the hydraulic clutch assembly compact while meeting the requirements of hybrid power systems is a technical problem that urgently needs to be solved in the existing technology. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a hydraulic clutch assembly and a hybrid power system, wherein the hydraulic circuit structure of the hydraulic clutch assembly is compact, thereby meeting the needs of the hybrid power system.

[0005] The hydraulic clutch assembly of the present invention includes a hydraulic oil pump, a proportional valve assembly, and a hydraulic clutch. The oil outlet of the hydraulic oil pump is directly connected to the oil inlet of the proportional valve assembly, and the oil outlet of the proportional valve assembly is connected to the oil inlet of the hydraulic clutch.

[0006] Furthermore, it also includes a filter element, and the proportional valve assembly includes a proportional valve seat and a proportional valve, with the oil inlet of the proportional valve assembly disposed on the proportional valve seat, which is located between the filter element and the hydraulic oil pump.

[0007] Furthermore, the hydraulic clutch is mounted on the main shaft of the transmission mechanism, and the oil outlet of the proportional valve assembly is connected to the oil inlet of the hydraulic clutch through an oil hole opened on the main shaft of the transmission mechanism.

[0008] Furthermore, the hydraulic pump includes a pump cover, which has a connecting channel communicating with a proportional valve seat. The outlet of the connecting channel is the oil outlet, and a positioning pin is provided at the outlet of the connecting channel. A sealing ring is provided between the positioning pin and the proportional valve seat.

[0009] Furthermore, the hydraulic clutch assembly also includes a hydraulic oil passage disposed on the right crankcase cover of the engine, the hydraulic oil passage being connected to the proportional valve and the main shaft bearing mounting hole disposed on the right crankcase cover.

[0010] Furthermore, the hydraulic clutch assembly also includes a branch oil circuit, which is connected to the hydraulic oil passage, and the branch oil circuit is equipped with an oil pressure sensor.

[0011] Furthermore, during installation, the right end of the spindle is supported and installed in the spindle bearing mounting hole by a support bearing. A sealing ring is provided on one side of the support bearing, and the sealing ring is sleeved on the spindle.

[0012] Furthermore, the hydraulic clutch includes an outer cover, a central sleeve, an operating pump, a driving friction plate, and a driven friction plate. The outer cover meshes with the driving friction plate and the primary driving gear of the engine. The central sleeve meshes with the operating pump, the driven friction plate, and the main shaft. A spring is provided between the central sleeve and the operating pump.

[0013] The main shaft is provided with an oil hole that communicates with the cavity of the pump, and the oil inlet of the pump cavity is the oil inlet of the hydraulic clutch.

[0014] The hybrid power system of the present invention includes the hydraulic clutch assembly, and the hybrid power system further includes a lubricating oil pump, wherein the hydraulic oil pump and the lubricating oil pump are driven by the same drive shaft.

[0015] Furthermore, an oil pump partition is provided between the hydraulic oil pump and the lubricating oil pump, and the oil pump partition is provided with a connecting hole, so that the oil inlet chamber of the hydraulic oil pump is connected to the oil inlet chamber of the lubricating oil pump.

[0016] The beneficial effects of the present invention are as follows: The hydraulic clutch assembly and hybrid power system of the present invention, by rationally designing the hydraulic oil circuit of the clutch hydraulic unit assembly, directly connects the oil outlet of the hydraulic oil pump to the oil inlet of the proportional valve assembly. The filtered hydraulic oil can directly enter the proportional valve assembly for pressure regulation, thereby saving a lot of oil circuit layout space, making the hydraulic oil circuit structure compact and helping to reduce the size of the hybrid power system. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the hybrid power system of the present invention;

[0019] Figure 2 for Figure 1 A sectional view;

[0020] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0021] Figure 4 This is a schematic diagram of the right crankcase cover and proportional valve.

[0022] Figure 5 This is a schematic diagram of the structure of the oil pump diaphragm and the hydraulic oil pump.

[0023] Figure 6 This is a cross-sectional view of the structure at the lubricating oil pump.

[0024] Figure 7 This is a schematic diagram of the right crankcase cover.

[0025] Figure 8 for Figure 6 A magnified view of a portion of the image.

[0026] Figure label:

[0027] 1. Right crankcase cover; 2. Hydraulic oil passage; 3. Branch oil passage; 4. Oil pressure sensor; 5. Primary drive gear; 6. Driven friction plate; 7. Actuating pump; 701. Moving part; 8. Sealing ring; 9. Support bearing; 10. Driven friction plate; 11. Center sleeve; 12. Outer cover; 13. Main shaft; 14. Hydraulic oil pump; 15. Proportional valve; 16. Oil pump partition; 1601. Connecting hole; 17. Drive shaft; 18. Lubricating oil pump; 1801. Oil pump cover; 19. Proportional valve seat; 1901. Oil inlet; 20. Filter element; 21. Sealing ring; 22. Locating pin; 23. Main shaft bearing mounting hole; 24. Crankshaft. Detailed Implementation

[0028] like Figure 1-8 As shown: The hydraulic clutch assembly of this embodiment includes a hydraulic oil pump 14, a proportional valve assembly and a hydraulic clutch. The oil outlet of the hydraulic oil pump 14 is directly connected to the oil inlet of the proportional valve assembly, and the oil outlet of the proportional valve assembly is connected to the oil inlet of the hydraulic clutch.

[0029] Specifically, a proportional valve assembly is set up to regulate the pressure of the hydraulic oil input from the hydraulic oil pump 14, and then deliver it to the hydraulic clutch to drive the hydraulic clutch to work. Since the proportional valve seat 19 is directly connected to the hydraulic oil pump 14, it can save a lot of oil circuit layout space compared with the existing technology, making the overall structure compact and helping to reduce the size of the engine.

[0030] In this embodiment, a filter element 20 is also included. The proportional valve assembly includes a proportional valve seat 19 and a proportional valve 15. The oil inlet 1901 of the proportional valve assembly is disposed on the proportional valve seat 19, which is located between the filter element 20 and the hydraulic oil pump 14.

[0031] Specifically, such as Figure 6 As shown, the proportional valve seat 19 is disposed between the filter element 20 and the hydraulic oil pump 14, relative to... Figure 6The proportional valve 15, located in the vertical direction, includes an inlet, outlet, valve core, valve body, and other structures, which are existing technologies and will not be described in detail here. The proportional valve 15 is located above the proportional valve seat 19, and the filter element 20 is located below the proportional valve seat 19. The proportional valve 15 is connected to the filter element 20 through the proportional valve seat 19, so that the hydraulic oil filtered by the filter element 20 can directly enter the proportional valve 15, which can further reduce the hydraulic oil circuit and make the structure compact. The filter element 20 is a fine filter, which includes a filter element and other structures. The specific structure of the fine filter is an existing technology and will not be described in detail here. By setting the filter element 20 to filter the hydraulic oil, the service life of the proportional valve 15 can be extended. During assembly, the filter element 20 is detachably fixed to the outside of the right crankcase cover 1 of the engine, which facilitates disassembly and maintenance and replacement of the filter element.

[0032] In this embodiment, the hydraulic clutch is mounted on the main shaft 13 of the transmission mechanism, and the oil outlet of the proportional valve assembly is connected to the oil inlet of the hydraulic clutch through an oil hole opened on the main shaft 13 of the transmission mechanism. The hydraulic oil regulated by the proportional valve assembly flows sequentially through the main shaft 13 and enters the hydraulic clutch to achieve automatic disengagement of the hydraulic clutch.

[0033] In this embodiment, the hydraulic oil pump 14 includes an oil pump cover 1801. The oil pump cover 1801 is provided with a connecting channel communicating with the proportional valve seat 19. The outlet of the connecting channel is the oil outlet. The outlet of the connecting channel is provided with a positioning pin 22. A sealing ring 21 is provided between the positioning pin 22 and the proportional valve seat 19.

[0034] Specifically, due to the positional arrangement of the proportional valve 15, the proportional valve seat 19 and the oil pump cover 1801 are positioned close to each other, which facilitates direct communication between the oil pump cover 1801 and the proportional valve seat 19, thus saving arrangement space. A positioning pin 22 and a sealing ring 21 are provided at the oil passage junction of the oil pump cover 1801 and the proportional valve seat 19, which facilitates positioning and assembly while ensuring the sealing reliability of the connection.

[0035] In this embodiment, the hydraulic clutch assembly further includes a hydraulic oil passage 2 disposed on the right crankcase cover 1 of the engine. The hydraulic oil passage 2 is connected to the proportional valve 15 and the main shaft bearing mounting hole 23 disposed on the right crankcase cover 1. The main shaft bearing mounting hole 23 is used to install the support bearing 9 of the main shaft 13. The hydraulic oil regulated by the proportional valve 15 enters the main shaft bearing mounting hole 23 through the hydraulic oil passage 2, and then flows through the main shaft 13 and enters the hydraulic clutch.

[0036] In this embodiment, the hydraulic clutch assembly further includes a branch oil passage 3, which is connected to the hydraulic oil passage 2. The branch oil passage 3 is equipped with an oil pressure sensor 4. The oil pressure sensor 4 is provided to obtain the oil pressure at that location.

[0037] In this embodiment, during installation, the right end of the spindle 13 is supported and installed in the spindle bearing mounting hole 23 by a support bearing 9. A sealing ring 8 is provided on one side of the support bearing 9, and the sealing ring 8 is sleeved on the spindle 13. Figure 3 As shown, relative to Figure 3 In the left-right direction, the right end of the spindle 13 is installed in the spindle bearing mounting hole 23 through the support bearing 9, and the support bearing 9 and the sealing ring 8 are clearance-fitted with the spindle 13.

[0038] In this embodiment, the hydraulic clutch includes an outer cover 12, a central sleeve 11, an actuating pump 7, an active friction plate 10, and a driven friction plate 6. The outer cover 12 meshes with the active friction plate 10 and the primary active gear 5 of the engine. The central sleeve 11 meshes with the actuating pump 7, the driven friction plate 6, and the main shaft 13. A spring is provided between the central sleeve 11 and the actuating pump 7. The clutch outer cover 12 rotates together with the engine, and the central sleeve 11 rotates together with the main shaft 13.

[0039] The main shaft 13 is provided with an oil hole communicating with the cavity of the pump 7. The oil inlet of the cavity of the pump 7 is also the oil inlet of the hydraulic clutch. Hydraulic oil enters the cavity of the pump 7 through the oil hole. When the pressure in the hydraulic oil circuit increases, the movable part 701 of the pump 7 will overcome the spring pressure and move towards the center sleeve 11. The active friction plate 10 and the driven friction plate 6 gradually come into contact until they are synchronized. All the torque on the clutch cover 12 is transmitted to the center sleeve 11 and the pump 7, thereby realizing torque transmission between the main shaft 13 and the engine crankshaft 24.

[0040] The hybrid power system of this embodiment includes the aforementioned hydraulic clutch assembly. The hybrid power system also includes a lubricating oil pump 18, and the hydraulic oil pump 14 and the lubricating oil pump 18 are driven by the same drive shaft 17. The rotors of the hydraulic oil pump 14 and the lubricating oil pump 18 are driven by the same drive shaft 17, thereby reducing the number of pump drive components and saving layout space.

[0041] In this embodiment, an oil pump partition 16 is provided between the hydraulic oil pump 14 and the lubricating oil pump 18. The oil pump partition 16 is provided with a connecting hole 1601, so that the oil inlet chamber of the hydraulic oil pump 14 is connected to the oil inlet chamber of the lubricating oil pump 18.

[0042] Specifically, the oil inlet chamber of the hydraulic oil pump 14 and the oil inlet chamber of the lubricating oil pump 18 are separated by the oil pump partition 16. At the same time, a connecting hole 1601 is provided on the oil pump partition 16 to realize the connection between the oil inlet chambers of the hydraulic oil pump 14 and the lubricating oil pump 18. This makes the overall structure compact and allows the lubricating oil pump 18 and the hydraulic oil pump 14 to share the front primary filter device (i.e., the oil collection tray of the engine), thereby reducing the number of parts and saving layout space.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hydraulic clutch assembly, characterized in that: It includes a hydraulic oil pump, a proportional valve assembly, and a hydraulic clutch. The oil outlet of the hydraulic oil pump is directly connected to the oil inlet of the proportional valve assembly, and the oil outlet of the proportional valve assembly is connected to the oil inlet of the hydraulic clutch.

2. The hydraulic clutch assembly according to claim 1, characterized in that: It also includes a filter element, and the proportional valve assembly includes a proportional valve seat and a proportional valve. The oil inlet of the proportional valve assembly is disposed on the proportional valve seat, and the proportional valve seat is located between the filter element and the hydraulic oil pump.

3. The hydraulic clutch assembly according to claim 2, characterized in that: The hydraulic clutch is mounted on the main shaft of the transmission mechanism, and the oil outlet of the proportional valve assembly is connected to the oil inlet of the hydraulic clutch through an oil hole opened on the main shaft of the transmission mechanism.

4. The hydraulic clutch assembly according to claim 2, characterized in that: The hydraulic pump includes a pump cover, which has a connecting channel communicating with a proportional valve seat. The outlet of the connecting channel is the oil outlet. A positioning pin is provided at the outlet of the connecting channel, and a sealing ring is provided between the positioning pin and the proportional valve seat.

5. The hydraulic clutch assembly according to claim 3, characterized in that: The hydraulic clutch assembly also includes a hydraulic oil passage located in the right crankcase cover of the engine, the hydraulic oil passage being connected to a proportional valve and a main shaft bearing mounting hole located in the right crankcase cover.

6. The hydraulic clutch assembly according to claim 5, characterized in that: The hydraulic clutch assembly also includes a branch oil circuit, which is connected to the hydraulic oil passage, and the branch oil circuit is equipped with an oil pressure sensor.

7. The hydraulic clutch assembly according to claim 5, characterized in that: During installation, the right end of the spindle is supported and installed in the spindle bearing mounting hole by a support bearing. A sealing ring is provided on one side of the support bearing, and the sealing ring is sleeved on the spindle.

8. The hydraulic clutch assembly according to claim 3, characterized in that: The hydraulic clutch includes an outer cover, a central sleeve, an actuating pump, a driving friction plate, and a driven friction plate. The outer cover meshes with the driving friction plate and the primary driving gear of the engine. The central sleeve meshes with the actuating pump, the driven friction plate, and the main shaft. A spring is provided between the central sleeve and the actuating pump. The main shaft is provided with an oil hole that communicates with the cavity of the pump, and the oil inlet of the pump cavity is the oil inlet of the hydraulic clutch.

9. A hybrid power system, characterized in that: The hybrid power system includes the hydraulic clutch assembly according to any one of claims 1-8, and further includes a lubricating oil pump, the hydraulic oil pump and the lubricating oil pump being driven by the same drive shaft.

10. The hybrid power system according to claim 9, characterized in that: An oil pump partition is provided between the hydraulic oil pump and the lubricating oil pump. The oil pump partition has a connecting hole, which allows the oil inlet chamber of the hydraulic oil pump to communicate with the oil inlet chamber of the lubricating oil pump.

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