Clutch device, power system and vehicle

Abstract

The utility model discloses a clutch device, power system and vehicle, wherein the clutch device comprises a power input shaft, a clutch shaft, a first gear, a first clutch, a second gear and a second clutch, the first gear is connected with a generator, the first gear is arranged on the clutch shaft, and the second gear is connected with the second clutch. The second gear and the power input shaft are arranged on the clutch shaft in a sleeving mode, the first gear is arranged between the first clutch and the second clutch, the first clutch is used for separating and combining the power input shaft and the first gear, and the second clutch is used for separating and combining the first gear and the second gear. The generator can be independently driven without an engine, and the power utilization rate of the generator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power systems, and in particular to a clutch device, a power system and a vehicle. Background Art

[0002] As a type of new energy vehicle, hybrid vehicles are driven by an engine and an electric motor. In the prior art, the generator and the engine are rigidly directly connected through a gear transmission, and there is no clutch between the two. Only the range extension and engine direct drive functions can be achieved. If the generator is used as a drive to move the vehicle, it will drag the engine to rotate together, resulting in a very low generator drive efficiency. Therefore, the generator cannot drive the vehicle to move, so the generator can only generate electricity but has no driving function, resulting in a waste of generator power. Utility Model Content

[0003] In order to solve at least one of the problems mentioned in the above background technology, the utility model provides a clutch device, a power system and a vehicle, wherein the generator can be driven independently without the engine, thereby improving the power utilization rate of the generator.

[0004] The specific technical solutions provided by the utility model are as follows:

[0005] In a first aspect, a clutch device is provided, including a power input shaft, a clutch shaft, a first gear, a first clutch, a second gear, and a second clutch, wherein the first gear is connected to a generator, the first gear is arranged on the clutch shaft, the second gear and the power input shaft are sleeved on the clutch shaft, the first gear is arranged between the first clutch and the second clutch, the first clutch is used to clutch the power input shaft and the first gear, and the second clutch is used to clutch the first gear and the second gear.

[0006] As a preferred embodiment of the above scheme, the first clutch and the second clutch both include a piston, a balance plate, a spring assembly, a friction plate assembly, a clutch inner hub and a clutch outer hub, the clutch inner hubs of the first clutch and the second clutch can rotate together with the power input shaft and the second gear respectively, the clutch outer hub can rotate together with the first gear, the friction plate assembly is spline-connected with the corresponding clutch inner hub and clutch outer hub respectively, and the spring assembly is arranged between the piston and the balance plate.

[0007] As a preferred embodiment of the above scheme, a transition ring and a shaft sleeve are provided on the fixed sleeve on the clutch shaft, and flanges are provided on the outer circles of the transition ring and the shaft sleeve. The balance plate of the first clutch is sleeved on the transition ring and abuts against the flange of the transition ring, and the balance plate of the second clutch is sleeved on the shaft sleeve and abuts against the flange of the shaft sleeve.

[0008] As a preferred embodiment of the above scheme, the first clutch is arranged between the power input shaft and the first gear, the second clutch is arranged between the first gear and the second gear, and bearings are provided between the power input shaft and the clutch shaft and between the second gear and the sleeve.

[0009] As a preferred embodiment of the above scheme, a plurality of oil passages are provided in the clutch shaft, lubricating oil is provided in the oil passages, the oil passages include clutch oil passages and lubricating oil passages, the clutch oil passages are connected to the piston, the lubricating oil passages are connected to a plurality of lubrication holes, the lubrication holes penetrate the outer wall of the clutch shaft, the lubrication holes correspond to a plurality of lubrication points, and a plug is provided on the oil passage at the end of the clutch shaft.

[0010] As a preferred embodiment of the above scheme, the lubrication point includes a first lubrication point and a second lubrication point, the first lubrication point is located between the piston and the balance plate, the second lubrication point is located between the power input shaft and the clutch shaft, and the power input shaft is provided with an oil outlet hole, which is connected to the second lubrication point.

[0011] As a preferred embodiment of the above scheme, a rectangular transition ring is provided on the fixed sleeve on the clutch shaft, and an oil inlet hole communicating with the rectangular transition ring and the clutch shaft is provided, and the lubricating oil enters the oil channel through the oil inlet hole.

[0012] As a preferred embodiment of the above solution, the outer sleeve of the rectangular transition ring is provided with a bearing and a rectangular sealing ring.

[0013] By means of the above technical scheme, in the range-extending mode, the first clutch of the clutch device of the utility model engages the power input shaft and the first gear, and the second clutch does not engage the first gear and the second gear. The rotation of the power input shaft drives the first gear to rotate together, thereby connecting the generator output to generate electricity through the first gear; in the generator drive mode, the first clutch does not engage the power input shaft and the first gear, and the second clutch engages the first gear and the second gear. The rotation of the first gear drives the second gear to rotate, thereby realizing the generator drive; in the power direct drive mode, the first clutch engages the power input shaft and the first gear, and the second clutch engages the first gear and the second gear. The rotation of the power input shaft drives the first gear to rotate, and the first gear drives the second gear to rotate, thereby realizing the power direct drive; therefore, the clutch device of the utility model can realize both the range-extending mode and the power drive mode, and can also realize the generator-disconnected power separate drive mode, thereby improving the power utilization rate of the generator.

[0014] In a second aspect, a power system is provided, comprising the clutch device as described above, an engine and a generator, wherein the engine drives a power input shaft to rotate.

[0015] In a third aspect, a vehicle is provided, comprising the clutch device as described above or the power system as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of the clutch device of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of;

[0019] Figure 3 for Figure 1 Another cross-sectional structural schematic diagram of;

[0020] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point A in the middle. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more centered elements can exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more centered elements can exist between them. The terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] Embodiment 1

[0024] The utility model provides a clutch device, including a power input shaft 1, a clutch shaft 2, a first gear 3, a first clutch 4, a second gear 5, and a second clutch 6, wherein the first gear 3 is connected to a generator (not shown), the first gear 3 is arranged on the clutch shaft 2, the second gear 6 and the power input shaft 1 are sleeved on the clutch shaft 2, the first gear 3 is arranged between the first clutch 4 and the second clutch 6, the first clutch 4 is used to clutch the power input shaft 1 and the first gear 3, and the second clutch 6 is used to clutch the first gear 3 and the second gear 5. In this embodiment, the power input shaft 1 is an engine input shaft, the first clutch 4 and the second clutch 6 are arranged back-to-back on opposite sides of the first gear 3, and the manner in which the first gear 3 is arranged on the clutch shaft 2 includes but is not limited to the first gear 3 and the clutch shaft 2 being integrally formed or fixedly connected.

[0025] The first clutch 4 and the second clutch 6 both include a piston 71, a balance plate 72, a spring assembly 79, a friction plate assembly 73, a clutch inner hub 74 and a clutch outer hub 75. The clutch inner hub 74 of the first clutch 4 and the second clutch 6 can rotate together with the power input shaft 1 and the second gear 5 respectively, and the clutch outer hub 75 can rotate together with the first gear 3. The friction plate assembly 73 is spline-connected with the corresponding clutch inner hub 74 and the clutch outer hub 75 respectively, and the spring assembly 73 is arranged between the piston 71 and the balance plate 72. In this embodiment, the clutch inner hub 74 and the clutch outer hub 75 are used to transmit torque. The connection method between the power input shaft 1 and the clutch inner hub 74 includes but is not limited to integral molding or fixed connection. The connection method between the second gear 5 and the clutch inner hub 74 includes but is not limited to integral molding or fixed connection. The connection method between the first gear 3 and the clutch outer hub 75 includes but is not limited to integral molding or fixed connection. The piston 71 is arranged back to back on the opposite sides of the first gear 3. One end of the piston 71 cooperates with the friction plate assembly 73. The friction plate assembly 73 includes a plurality of dual end plates 76, a plurality of dual steel plates 77 and a plurality of friction plates 78 arranged at intervals. The dual end plates 76 are arranged at both ends of the friction plate assembly 73. The thickness of the dual end plates 76 is greater than that of the dual steel plates 77. The dual end plates 76 and the dual steel plates 77 are spline-matched with the clutch outer hub 75. The dual end plates 76 and the dual steel plates 77 can move axially. The dual end plates 76 and the dual steel plates 77 are smoothly sleeved on the clutch inner hub 74. Friction materials are attached to the two end surfaces of the friction plate 78. 78 is spline-connected with the clutch inner hub 74, and the friction plate 78 can move axially. The clutch outer hub 75 is smoothly sleeved on the friction plate 78. The dual end plate 76 is provided with a dual end plate retaining spring 70 for axially restraining the friction plate 78. When the piston presses the friction plate assembly 73, the dual end plate 76 and the dual steel plate 77 transmit the friction torque on the friction plate 78 to the clutch outer hub 75, and the friction plate 78 transmits the friction torque on the friction plate 78 to the clutch inner hub 74, thereby achieving the engagement of the power input shaft 1 with the first gear 3 or the first gear 3. The first gear 3 and the second gear 5, the piston 71 is arranged in the piston cavity 81, and a balancing cavity 82 is formed between the balancing plate 72 and the piston 71, which plays a role in balancing the centrifugal oil pressure of the piston cavity. The spring assembly 79 is arranged between the balancing cavity 82 and the piston 71, and plays a role in separating the first clutch 4 or the second clutch 6. When the piston 71 presses the friction plate assembly 73, the spring assembly 79 stores elastic potential energy. When the piston 71 no longer presses the friction plate assembly 73, the spring assembly 79 releases the elastic potential energy to push the piston 71 to reset.

[0026] A transition ring 9 and a sleeve 10 are fixedly sleeved on the clutch shaft 2. The outer circles of the transition ring 9 and the sleeve 10 are both provided with flanges 20. The balance plate 72 of the first clutch 4 is sleeved on the transition ring 9 and abuts against the flange 20 of the transition ring 9. The balance plate 72 of the second clutch 6 is sleeved on the sleeve 10 and abuts against the flange 20 of the sleeve 10. In this embodiment, the transition ring 9 and the sleeve 10 are both interference fit with the clutch shaft 2. An end bearing 30 is provided between the side of the transition ring 9 away from the balance plate 72 and the power input shaft 1. The end bearing 30 is used for axial positioning between the power input shaft 1 and the clutch shaft 2.

[0027] The first clutch 4 is arranged between the power input shaft 1 and the first gear 3, the second clutch 6 is arranged between the first gear 3 and the second gear 5, and bearings 40 are arranged between the power input shaft 1 and the clutch shaft 2 and between the second gear 5 and the sleeve 10. In this embodiment, the bearing 40 between the power input shaft 1 and the clutch shaft 2 is a needle bearing, which plays a role in radial positioning, and the bearings 40 between the second gear 5 and the sleeve 10 are also needle bearings, which play a role in supporting the second gear 5.

[0028] The clutch shaft 2 is provided with a plurality of oil passages 21, and lubricating oil is provided in the oil passages 21. The oil passages 21 include a clutch oil passage 211 and a lubricating oil passage 212. The clutch oil passage 211 is connected to the piston 71, and the lubricating oil passage 212 is connected to a plurality of lubricating holes 213. The lubricating holes 213 penetrate the outer wall of the clutch shaft 2, and the lubricating holes 213 correspond to a plurality of lubricating points. A plug 50 is provided on the oil passage 21 at the end of the clutch shaft 2. In this embodiment, the oil in the clutch oil passage 211 enters the piston cavity 81 to drive the piston 71 to move forward, and presses the friction plate assembly 73. A lubricating oil passage 212 is provided in the middle of the clutch shaft 2, and two clutch oil passages 211 are provided on both sides of the lubricating oil passage 212. The oil in the clutch oil passage 211 is used to drive the piston 71, and the lubricating oil in the lubricating oil passage 212 is used for cooling and lubrication. The lubrication points include a first lubrication point 61 and a second lubrication point 62. The first lubrication point 61 is located between the piston 71 and the balance plate 72. The second lubrication point 62 is located between the power input shaft 1 and the clutch shaft 2. The power input shaft 1 is provided with an oil outlet hole 11, which is connected to the second lubrication point 62. The lubricating oil of the second lubrication point 62 also enters the piston cavity 81 through the gap between the needle bearing and the power input shaft 1 and the gap between the end bearing 30 and the power input shaft 1 for cooling and lubrication. The lubrication points also include a third lubrication point 63, which is located between the sleeve 10 and the clutch shaft 2 and between the sleeve 10 and the second gear 5. The sleeve 10 is provided with a through hole 101, which is connected to the clutch shaft 2 and the corresponding lubrication hole 213. The plug 50 is a process plug used to seal the oil passage.

[0029] A rectangular transition ring 90 is fixedly sleeved on the clutch shaft 2. An oil inlet hole 901 is provided on the rectangular transition ring 90 and the clutch shaft 2. The lubricating oil enters the clutch oil passage 211 through the oil inlet hole 901. A bearing and a rectangular sealing ring 200 are provided on the outer sleeve of the rectangular transition ring 90. The bearing is a deep groove ball bearing 100. The rectangular sealing ring 200 plays a dynamic sealing role and guides the high-pressure oil to the clutch shaft 2. In this embodiment, the rectangular transition ring 90 and the clutch shaft 2 are interference fit. The outer sides of the power input shaft 1 and the rectangular transition ring 90 are sleeved with deep groove ball bearings 100, which play the role of supporting the power input shaft 1 and the clutch shaft 2 respectively. The lubrication point also includes a fourth lubrication point 64, which is located between the rectangular transition ring 90 and the clutch shaft 2.

[0030] In the clutch device of the utility model, when the range-extending mode is in progress, the oil in the clutch oil passage 211 pushes the piston 71 of the first clutch 4 to press the friction plate assembly 73 and the spring assembly 79, thereby engaging the power input shaft 1 and the first gear 3, while the friction plate assembly 73 of the second clutch 6 is not pressed, and the rotation of the power input shaft 1 drives the first gear 3 to rotate together, thereby connecting the generator output to generate electricity through the first gear 3; in the generator drive mode, the friction plate assembly 73 of the first clutch 4 is not pressed, and the oil in the clutch oil passage 211 pushes the piston of the second clutch 6 to press the friction plate assembly 73 and the spring assembly 79, thereby engaging the first gear 3 and the second gear 5 , the first gear 3 rotates to drive the second gear 5 to rotate, thereby realizing generator drive; in the power direct drive mode, the friction plate assembly 73 of the first clutch 4 is compressed, the first clutch 4 engages the power input shaft 1 and the first gear 3, the friction plate assembly 73 of the second clutch 6 is compressed, the second clutch 6 engages the first gear 3 and the second gear 5, the power input shaft 1 rotates to drive the first gear 3 to rotate, and the first gear 3 drives the second gear 5 to rotate, thereby realizing power direct drive; therefore, the clutch device of the utility model can realize both the range extension mode and the power drive mode, and can also realize the generator disengaged from the power separate drive mode, thereby improving the power utilization rate of the generator.

[0031] Embodiment 2

[0032] The utility model provides a power system, comprising a clutch device, an engine and a generator as described in the first embodiment, wherein the engine drives a power input shaft to rotate, and the generator generates electricity through a first gear output or is driven through a first gear input.

[0033] Embodiment 3

[0034] The utility model provides a vehicle, comprising the clutch device as described in the first embodiment or the power system as described in the second embodiment.

[0035] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0036] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A clutch device, characterized in that: It includes a power input shaft, a clutch shaft, a first gear, a first clutch, a second gear, and a second clutch. The first gear is connected to a generator. The first gear is arranged on the clutch shaft. The second gear and the power input shaft are sleeved on the clutch shaft. The first gear is arranged between the first clutch and the second clutch. The first clutch is used to clutch the power input shaft and the first gear. The second clutch is used to clutch the first gear and the second gear.

2. The clutch device according to claim 1, characterized in that: The first clutch and the second clutch both include a piston, a balance plate, a spring assembly, a friction plate assembly, a clutch inner hub and a clutch outer hub. The clutch inner hubs of the first clutch and the second clutch can rotate together with the power input shaft and the second gear respectively, and the clutch outer hub can rotate together with the first gear. The friction plate assembly is spline-connected with the corresponding clutch inner hub and clutch outer hub respectively, and the spring assembly is arranged between the piston and the balance plate.

3. The clutch device according to claim 2, characterized in that: A transition ring and a shaft sleeve are provided on the fixed sleeve on the clutch shaft, and flanges are provided on the outer circles of the transition ring and the shaft sleeve. The balance plate of the first clutch is sleeved on the transition ring and abuts against the flange of the transition ring, and the balance plate of the second clutch is sleeved on the shaft sleeve and abuts against the flange of the shaft sleeve.

4. The clutch device according to claim 3, characterized in that: The first clutch is arranged between the power input shaft and the first gear, the second clutch is arranged between the first gear and the second gear, and bearings are arranged between the power input shaft and the clutch shaft and between the second gear and the shaft sleeve.

5. The clutch device according to claim 2, characterized in that: The clutch shaft is provided with a plurality of oil passages, and lubricating oil is provided in the oil passages. The oil passages include clutch oil passages and lubricating oil passages. The clutch oil passages are connected to the piston, and the lubricating oil passages are connected to a plurality of lubrication holes. The lubrication holes penetrate the outer wall of the clutch shaft, and the lubrication holes correspond to a plurality of lubrication points. A plug is provided on the oil passage at the end of the clutch shaft.

6. The clutch device according to claim 5, characterized in that: The lubrication point includes a first lubrication point and a second lubrication point, the first lubrication point is located between the piston and the balance plate, the second lubrication point is located between the power input shaft and the clutch shaft, the power input shaft is provided with an oil outlet hole, and the oil outlet hole is connected to the second lubrication point.

7. The clutch device according to claim 5, characterized in that: A rectangular transition ring is provided on the fixed sleeve of the clutch shaft, and an oil inlet hole communicating with the rectangular transition ring and the clutch shaft is provided, and the lubricating oil enters the oil channel through the oil inlet hole.

8. The clutch device according to claim 7, characterized in that: The outer sleeve of the rectangular transition ring is provided with a bearing and a rectangular sealing ring.

9. A power system, characterized in that: It comprises a clutch device as described in any one of claims 1 to 8, an engine and a generator, wherein the engine drives a power input shaft to rotate.

10. A vehicle, characterized in that: It comprises a clutch device as claimed in any one of claims 1 to 8 or a power system as claimed in claim 9.

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