Transmission device, power system and vehicle

Abstract

The utility model provides a transmission device, a power system and a vehicle. The transmission device comprises a driving piece, an intermediate shaft, a first gear set, a second gear set and a clutch. By arranging a single clutch, a first transmission line from the driving part to the intermediate shaft through the first gear set can be formed in the transmission device; or a second transmission line from the driving piece to the intermediate shaft through the clutch and the second gear set, the single clutch can save material cost and installation space, and switching between the two transmission lines is more direct and efficient.

Description

Technical Field

[0001] The present application relates to the field of vehicle engineering technology, and in particular to a transmission device, a power system and a vehicle. Background Art

[0002] Traditional gearboxes usually use two or more transmissions to control different gears. The use of multiple clutches will lead to higher material costs and increase the production cost of the vehicle; multiple clutches require more space to accommodate multiple clutches, resulting in the space of other key components being squeezed and reducing the space utilization of the vehicle; multiple clutches require complex control systems, resulting in higher failure rates and maintenance costs. Utility Model Content

[0003] The purpose of this application is to provide a transmission device, a power system and a vehicle to solve the problems of high cost, large space occupation and complex control of multiple clutches.

[0004] To achieve the purpose of this application, this application provides the following technical solutions:

[0005] In the first aspect, the utility model provides a transmission device, including a driving member, an intermediate shaft, a first gear set, a second gear set and a clutch; the driving member has a driving shaft; the first gear set is respectively connected to the driving shaft and the intermediate shaft; the second gear set is respectively connected to the driving shaft and the intermediate shaft; the clutch is connected to the second gear set; the transmission device includes a first transmission circuit and a second transmission circuit; under the first transmission circuit, the driving shaft is transmitted to the intermediate shaft through the first gear set; under the second transmission circuit, the clutch is closed, and the driving shaft is transmitted to the intermediate shaft through the second gear set and the clutch.

[0006] In one embodiment, the transmission device further comprises a first one-way clutch, wherein the first one-way clutch is disposed on the first transmission line, and the first one-way clutch is adapted to enable the drive shaft to transmit one-way transmission to the intermediate shaft.

[0007] In one embodiment, the first gear set includes a first gear and a second gear, and the first gear and the second gear are meshed; the first gear is connected to the drive shaft, and the second gear is connected to the intermediate shaft; the first one-way clutch is connected to the drive shaft and the first gear, and on the first transmission line, the drive shaft is transmitted to the first gear through the first one-way clutch; or, the first one-way clutch is connected to the intermediate shaft and the second gear, and on the first transmission line, the second gear is transmitted to the intermediate shaft through the first one-way clutch.

[0008] In one embodiment, the transmission device includes a third gear set, a fourth gear set and an output shaft, and the intermediate shaft includes a first intermediate shaft and a second intermediate shaft. Under the first transmission line, the drive shaft is transmitted to the output shaft through the first gear set, the first intermediate shaft, the first one-way clutch, and the third gear set; under the second transmission line, the drive shaft is transmitted to the output shaft through the second gear set, the second intermediate shaft, and the fourth gear set; the first one-way clutch connects the first intermediate shaft and the third gear set.

[0009] In one embodiment, the transmission device further comprises a second one-way clutch, wherein the second one-way clutch is arranged on the second transmission line, and the second one-way clutch is suitable for enabling the drive shaft to transmit one-way transmission to the intermediate shaft.

[0010] In one embodiment, the second gear set includes a third gear and a fourth gear, and the third gear and the fourth gear are meshed; the third gear is connected to the drive shaft, and the fourth gear is connected to the intermediate shaft; the second one-way clutch is connected to the drive shaft and the third gear, and on the second transmission line, the drive shaft is transmitted to the third gear through the second one-way clutch; or, the second one-way clutch is connected to the intermediate shaft and the fourth gear, and on the second transmission line, the fourth gear is transmitted to the intermediate shaft through the second one-way clutch.

[0011] In one embodiment, the transmission device includes a third gear set, a fourth gear set and an output shaft, and the intermediate shaft includes a first intermediate shaft and a second intermediate shaft. Under the first transmission line, the drive shaft is transmitted to the output shaft through the first gear set, the first intermediate shaft and the third gear set; under the second transmission line, the drive shaft is transmitted to the output shaft through the second gear set, the second intermediate shaft and the fourth gear set; the first one-way clutch connects the first intermediate shaft and the third gear set; the second one-way clutch connects the first intermediate shaft and the second intermediate shaft, or the second one-way clutch connects the drive shaft and the second gear set.

[0012] In one embodiment, the clutch is disposed on the drive shaft, and the clutch is connected to the third gear; on the drive shaft, the first gear, the third gear and the clutch are arranged in sequence along the axial direction of the drive shaft.

[0013] In one embodiment, the clutch is disposed on the intermediate shaft, the clutch is connected to the fourth gear, and on the intermediate shaft, the second gear, the clutch and the fourth gear are arranged in sequence along the axial direction of the intermediate shaft.

[0014] In one embodiment, the first one-way clutch is connected to the second gear, and the first one-way clutch and the clutch are combined to form a power switching mechanism; or, the second one-way clutch is connected to the fourth gear, and the second one-way clutch and the clutch are combined to form a power switching mechanism; or, the first one-way clutch is connected to the second gear, the second one-way clutch is connected to the fourth gear, and the first one-way clutch, the second one-way clutch and the clutch are combined to form a power switching mechanism.

[0015] In a second aspect, the utility model provides a power system, which includes the transmission device and wheels as described in the first aspect; the transmission device transmits to rotate the wheels.

[0016] In a third aspect, the utility model provides a vehicle, comprising the power system as described in the second aspect.

[0017] The utility model provides a transmission device, including a driving member, an intermediate shaft, a first gear set, a second gear set, and a clutch. By setting a single clutch, a first transmission line from the driving member through the first gear set to the intermediate shaft can be formed in the transmission device; or a second transmission line from the driving member through the clutch and the second gear set to the intermediate shaft can be formed. The single clutch can save material costs, save installation space, and the switching between the two transmission lines is more direct and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 is a schematic structural diagram of an embodiment of a transmission device including two one-way clutches;

[0020] Figure 2 is a schematic structural diagram of an embodiment of a transmission device including a one-way clutch;

[0021] Figure 3 is a structural schematic diagram of an embodiment of a transmission device including a power switching mechanism;

[0022] Figure 4 is a structural schematic diagram of another embodiment of a transmission device including a power switching mechanism;

[0023] Figure 5is a schematic structural diagram of an embodiment of a transmission device including a third gear set and a fourth gear set;

[0024] Figure 6 is a schematic structural diagram of another embodiment of a transmission device including a third gear set and a fourth gear set;

[0025] Figure 7 A schematic structural diagram of another transmission device embodiment including two one-way clutches;

[0026] Figure 8 It is a structural schematic diagram of another embodiment of a transmission device including a power switching mechanism.

[0027] Description of reference numerals:

[0028] 1-driving member, 1A-driving shaft;

[0029] 2-intermediate shaft, 2A-first intermediate shaft, 2B-second intermediate shaft;

[0030] 3-first gear set, 31-first gear, 32-second gear;

[0031] 4-second gear set, 41-third gear, 42-fourth gear;

[0032] 5- Clutch;

[0033] 6- first one-way clutch;

[0034] 7- second one-way clutch;

[0035] 8-Power switching mechanism;

[0036] 9- third gear set;

[0037] 10- fourth gear set;

[0038] 11- output shaft;

[0039] T1-first transmission line; T2-second transmission line; T3-third transmission line. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0042] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this application and in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this application includes any and all combinations of one or more of the related listed items.

[0043] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0044] In one embodiment, the utility model provides a transmission device, including a driving member 1, an intermediate shaft 2, a first gear set 3, a second gear set 4 and a clutch 5; the driving member 1 has a driving shaft 1A; the first gear set 3 is respectively connected to the driving shaft 1A and the intermediate shaft 2; the second gear set 4 is respectively connected to the driving shaft 1A and the intermediate shaft 2; the clutch 5 is connected to the second gear set 4; the transmission device includes a first transmission line T1 and a second transmission line T2; under the first transmission line T1, the driving shaft 1A is transmitted to the intermediate shaft 2 through the first gear set 3; under the second transmission line T2, the clutch 5 is closed, and the driving shaft 1A is transmitted to the intermediate shaft 2 through the second gear set 4 and the clutch 5.

[0045] Specifically, the driving member 1 can be an electric motor, a fuel engine, a combustible gas engine or other rotary power source; optionally, in the present utility model, the driving member 1 is an electric motor. The first gear set 3 and the second gear set 4 can be parallel shaft gear sets, planetary gear sets and helical gear sets; the first gear set 3 and the second gear set 4 can be the same type of gear sets to simplify the design and save costs; or they can be different types of gear sets for providing different transmission ratios under the first transmission line T1 and the second transmission line T2. Clutch 5 is one of a friction clutch 5, an electromagnetic clutch 5, a spring clutch 5 and a hydraulic clutch 5. The driving shaft 1A and the intermediate shaft 2 can be two parallel metal rotating shafts, and the driving shaft 1A and the intermediate shaft 2 are driven by a gear set. The driving shaft 1A is connected to the transmission gears of the first gear set 3 and the second gear set 4, and the intermediate shaft 2 is connected to the transmission gears of the first gear set 3 and the second gear set 4. The two gears are connected to each other. When the driving shaft 1A rotates, the connected gears are driven to rotate and transmitted to the gears on the intermediate shaft 2, so that the intermediate shaft 2 is driven.

[0046] Please refer to Figure 1-Figure 6 , in the direction of the axial direction of the driving shaft 1A of the driving member 1 away from the driving member 1, the driving shaft 1A of the driving member 1 is transmission-connected with one end of the first gear set 3; the driving shaft 1A rotates, driving the gears inside the first gear set 3 to rotate, and the power is transmitted from the driving shaft 1A to the first gear set 3; the other end of the first gear set 3 is transmission-connected with the intermediate shaft 2, the gears in the first gear set 3 rotate, driving the intermediate shaft 2 to rotate, and the power is transmitted from the first gear set 3 to the intermediate shaft 2. In the direction of the axial direction of the driving shaft 1A of the driving member 1 away from the driving member 1, the driving shaft 1A of the driving member 1 is transmission-connected with one end of the second gear set 4; the driving shaft 1A rotates, driving the gears inside the second gear set 4 to rotate, and the power is transmitted from the driving shaft 1A to the second gear set 4; the other end of the second gear set 4 is transmission-connected with the intermediate shaft 2, the gears in the second gear set 4 rotate, driving the intermediate shaft 2 to rotate, and the power is transmitted from the second gear set 4 to the intermediate shaft 2. The clutch 5 is connected to the second gear set 4, and the clutch 5 is closed or connected.

[0047] Please refer to Figure 1-Figure 6 Through the above connection, a first transmission line T1 and a second transmission line T2 can be formed in the transmission device. In the first transmission line T1, the drive shaft 1A rotates, and the gears in the first gear set 3 mesh and start to rotate, transmitting power to the intermediate shaft 2, completing the power transmission from the drive member 1 directly to the intermediate shaft 2. In the second transmission line T2, the drive shaft 1A rotates, the clutch 5 is closed, and the gears in the second gear set 4 mesh and start to rotate, transmitting power to the intermediate shaft 2, completing the power transmission from the drive member 1 to the intermediate shaft 2 through the clutch 5. By setting the clutch 5 to be connected to the second gear set 4, the second gear set 4 can be connected or disconnected with the drive shaft 1A when needed, and the transmission device can switch between the first transmission line T1 and the second transmission line T2 to meet different working conditions.

[0048] The utility model provides a transmission device, comprising a driving member 1, an intermediate shaft 2, a first gear set 3, a second gear set 4 and a clutch 5. By providing a single clutch 5, a first transmission line T1 from the driving member 1 through the first gear set 3 to the intermediate shaft 2 can be formed in the transmission device; a second transmission line T2 from the driving member 1 through the clutch 5 and the second gear set 4 to the intermediate shaft 2 can be formed. The single clutch 5 can save material costs, save installation space, and the switching between the two transmission lines is more direct and efficient.

[0049] In one embodiment, the transmission device further includes a first one-way clutch 6 , which is disposed on the first transmission line T1 , and is suitable for enabling the drive shaft 1A to transmit one-way transmission to the intermediate shaft 2 .

[0050] The first one-way clutch 6 can be a roller one-way clutch, a spring one-way clutch, or a wedge one-way clutch. The first one-way clutch 6 can prevent the power from being transmitted in the transmission device in the reverse direction, and avoid the components in the transmission device from being damaged due to the sudden reverse load; it ensures that the power is transmitted only in the direction of the first transmission line T1, which helps to maintain the stability of the transmission device and the expected working performance.

[0051] Please refer to Figure 1-Figure 6 On the first transmission line T1, the drive shaft 1A rotates, driving the gears inside the first gear set 3 to rotate, and the power is transmitted from the drive shaft 1A to the first gear set 3; the other end of the first gear set 3 is connected to the intermediate shaft 2, and the gears in the first gear set 3 rotate, driving the intermediate shaft 2 to rotate, and the power is transmitted from the first gear set 3 to the intermediate shaft 2; the first one-way clutch 6 is arranged on the first transmission line T1, and the power can only be transmitted in one direction from the drive shaft 1A to the intermediate shaft 2 through the first one-way clutch 6.

[0052] In one embodiment, the first gear set 3 includes a first gear 31 and a second gear 32, and the first gear 31 and the second gear 32 are meshed; the first gear 31 is connected to the drive shaft 1A, and the second gear 32 is connected to the intermediate shaft 2; the first one-way clutch 6 is connected to the drive shaft 1A and the first gear 31, and on the first transmission line T1, the drive shaft 1A is transmitted to the first gear 31 through the first one-way clutch 6; or, the first one-way clutch 6 is connected to the intermediate shaft 2 and the second gear 32, and on the first transmission line T1, the second gear 32 is transmitted to the intermediate shaft 2 through the first one-way clutch 6.

[0053] Please refer to Figure 1-Figure 3 , the first gear 31 is connected to the driving shaft 1A of the driving member 1, the second gear 32 is connected to the intermediate shaft 2, and the first gear 31 and the second gear 32 are meshed to form the first transmission line T1. Under the first transmission line T1, the driving member 1 starts to work, and the driving shaft 1A rotates; the first gear 31 rotates with the rotation of the driving shaft 1A; the first gear 31 transmits power to the second gear 32 through gear meshing; the second gear 32 rotates with the rotation of the first gear 31, and the second gear 32 transmits power to the intermediate shaft 2, completing the power transmission process of the first transmission path. The function of the first one-way clutch 6 is to prevent reverse transmission, ensuring that under the first transmission path, power can only be transmitted from the driving shaft 1A to the intermediate shaft 2 through the first gear 31 and the second gear 32. The first one-way clutch 6 can be connected to the first gear 31 or the second gear 32 to meet the function of preventing reverse transmission.

[0054] Please refer to Figure 1-Figure 3, on the first transmission line T1, the first one-way clutch 6 connects the drive shaft 1A and the first gear 31, and the power is transmitted from the drive shaft 1A to the first gear 31, while preventing reverse transmission. When the drive shaft 1A rotates, the first one-way clutch 6 allows the power to be transmitted to the first gear 31; when the first gear 31 rotates in the reverse direction, the first one-way clutch 6 is locked to prevent the reverse transmission of power. Please refer to Figure 7 The first one-way clutch 6 connects the intermediate shaft 2 and the second gear 32, and the power is transmitted from the second gear 32 to the intermediate shaft 2, while preventing reverse transmission. When the second gear 32 rotates, the first one-way clutch 6 allows the power to be transmitted to the intermediate shaft 2; when the intermediate shaft 2 rotates in the reverse direction, the first one-way clutch 6 is locked to prevent the power from being transmitted in the reverse direction.

[0055] In one embodiment, the transmission device includes a third gear set 9, a fourth gear set 10 and an output shaft 11, and the intermediate shaft 2 includes a first intermediate shaft 2A and a second intermediate shaft 2B. In a first transmission line T1, the drive shaft 1A is transmitted to the output shaft 11 through the first gear set 3, the first intermediate shaft 2A, the first one-way clutch 6, and the third gear set 9; in a second transmission line T2, the drive shaft 1A is transmitted to the output shaft 11 through the second gear set 4, the second intermediate shaft 2B, and the fourth gear set 10; the first one-way clutch 6 connects the first intermediate shaft 2A and the third gear set 9.

[0056] Please refer to Figure 5 , under the first transmission line T1, one end of the third gear set 9 is transmission-connected with the first intermediate shaft 2A, the first one-way clutch 6 is connected between the first intermediate shaft 2A and the third gear set 9, and the other end of the third gear set 9 is transmission-connected with the output shaft 11. Under the first transmission line T1, the drive shaft 1A rotates, driving the gears inside the first gear set 3 to rotate, and the power is transmitted from the drive shaft 1A to the first gear set 3. The other end of the first gear set 3 is transmission-connected with the first intermediate shaft 2A, and the gears in the first gear set 3 rotate, driving the first intermediate shaft 2A to rotate, and the power is transmitted from the first gear set 3 to the first intermediate shaft 2A. After passing through the first one-way clutch 6, the power is unidirectionally transmitted from the first intermediate shaft 2A to the third gear set 9, and the gears inside the third gear set 9 rotate, driving the output shaft 11 to rotate, completing the power transmission under the first transmission line T1.

[0057] Please refer to Figure 5, in the second transmission line T2, one end of the fourth gear set 10 is transmission-connected with the second intermediate shaft 2B, and the other end of the fourth gear set 10 is transmission-connected with the output shaft 11. In the second transmission line T2, the drive shaft 1A rotates, driving the gears inside the second gear set 4 to rotate, and the power is transmitted from the drive shaft 1A to the second gear set 4. The other two ends of the second gear set 4 are transmission-connected with the second intermediate shaft 2B, and the gears in the second gear set 4 rotate, driving the second intermediate shaft 2B to rotate, and the power is transmitted from the second gear set 4 to the second intermediate shaft 2B, and the power is transmitted from the second intermediate shaft 2B to the fourth gear set 10, and the gears inside the fourth gear set 10 rotate, driving the output shaft 11 to rotate, completing the power transmission in the second transmission line T2.

[0058] In one embodiment, the transmission device further includes a second one-way clutch 7 , which is disposed on the second transmission line T2 , and is suitable for enabling the drive shaft 1A to transmit one-way transmission to the intermediate shaft 2 .

[0059] The second one-way clutch 7 can be a roller one-way clutch, a spring one-way clutch, or a wedge one-way clutch. The second one-way clutch 7 can prevent the power from being transmitted in the transmission device in the reverse direction, and avoid the components in the transmission device from being damaged due to the sudden reverse load; it ensures that the power is transmitted only in the direction of the second transmission line T2, which helps to maintain the stability of the transmission device and the expected working performance.

[0060] Please refer to Figure 1 , Figure 4 ,and Figure 6 On the second transmission line T2, the drive shaft 1A rotates, driving the gears inside the second gear set 4 to rotate, and the power is transmitted from the drive shaft 1A to the second gear set 4; the other end of the second gear set 4 is connected to the intermediate shaft 2, and the gears in the second gear set 4 rotate, driving the intermediate shaft 2 to rotate, and the power is transmitted from the second gear set 4 to the intermediate shaft 2; the second one-way clutch 7 is arranged on the second transmission line T2, and the power can only be transmitted in one direction from the drive shaft 1A to the intermediate shaft 2 through the second one-way clutch 7.

[0061] In one embodiment, the second gear set 4 includes a third gear 41 and a fourth gear 42, and the third gear 41 and the fourth gear 42 are meshed; the third gear 41 is connected to the drive shaft 1A, and the fourth gear 42 is connected to the intermediate shaft 2; the second one-way clutch 7 is connected to the drive shaft 1A and the third gear 41, and on the second transmission line T2, the drive shaft 1A is transmitted to the third gear 41 through the second one-way clutch 7; or, the second one-way clutch 7 is connected to the intermediate shaft 2 and the fourth gear 42, and on the second transmission line T2, the fourth gear 42 is transmitted to the intermediate shaft 2 through the second one-way clutch 7.

[0062] Please refer to Figure 1, the third gear 41 is connected to the drive shaft 1A of the driving member 1, and the fourth gear 42 is connected to the intermediate shaft 2; the third gear 41 and the fourth gear 42 are meshed, and when the clutch 5 is closed, the second transmission line T2 is formed. Under the second transmission line T2, the driving member 1 starts to work, and the drive shaft 1A rotates; the third gear 41 rotates with the rotation of the drive shaft 1A; the third gear 41 transmits power to the fourth gear 42 through gear meshing; the fourth gear 42 rotates with the rotation of the third gear 41, and the fourth gear 42 transmits power to the intermediate shaft 2, completing the power transmission process of the second transmission path. The function of the second one-way clutch 7 is to prevent reverse transmission, ensuring that under the second transmission path, power can only be transmitted from the drive shaft 1A to the intermediate shaft 2 through the third gear 41 and the fourth gear 42. The second one-way clutch 7 can be connected to the third gear 41 or the fourth gear 42 to meet the function of preventing reverse transmission.

[0063] Please refer to Figure 1 On the second transmission line T2, the second one-way clutch 7 connects the drive shaft 1A and the third gear 41, and the power is transmitted from the drive shaft 1A to the third gear 41, while preventing reverse transmission. When the drive shaft 1A rotates, the second one-way clutch 7 allows the power to be transmitted to the third gear 41; when the third gear 41 rotates in the reverse direction, the second one-way clutch 7 is locked to prevent the reverse transmission of power. Please refer to Figure 4 The second one-way clutch 7 connects the intermediate shaft 2 and the fourth gear 42, and the power is transmitted from the fourth gear 42 to the intermediate shaft 2, while preventing reverse transmission. When the fourth gear 42 rotates, the second one-way clutch 7 allows the power to be transmitted to the intermediate shaft 2; when the intermediate shaft 2 rotates in the reverse direction, the second one-way clutch 7 is locked to prevent the power from being transmitted in the reverse direction.

[0064] In one embodiment, the transmission device includes a third gear set 9, a fourth gear set 10 and an output shaft 11, and the intermediate shaft 2 includes a first intermediate shaft 2A and a second intermediate shaft 2B. Under the first transmission line T1, the drive shaft 1A is transmitted to the output shaft 11 through the first gear set 3, the first intermediate shaft 2A, and the third gear set 9; under the second transmission line T2, the drive shaft 1A is transmitted to the output shaft 11 through the second gear set 4, the second intermediate shaft 2B, and the fourth gear set 10; the first one-way clutch 6 connects the first intermediate shaft 2A and the third gear set 9; the second one-way clutch 7 connects the first intermediate shaft 2A and the second intermediate shaft 2B, or the second one-way clutch 7 connects the drive shaft 1A and the second gear set 4.

[0065] Please refer to Figure 5-Figure 6 One end of the third gear set 9 is transmission connected to the first intermediate shaft 2A, and the other end of the third gear set 9 is transmission connected to the output shaft 11; one end of the fourth gear set 10 is transmission connected to the second intermediate shaft 2B, and the other end of the fourth gear set 10 is transmission connected to the output shaft 11.

[0066] Please refer to Figure 5 In the first transmission line T1, the drive shaft 1A rotates, driving the gears in the first gear set 3 to rotate, and the power is transmitted to the first gear set 3; the first gear set 3 drives the first intermediate shaft 2A to rotate, so that the gears in the third gear set 9 rotate, and the power is transmitted to the third gear set 9, and the third gear set 9 drives the output shaft 11 to rotate, and the first one-way clutch 6 connects the first intermediate shaft 2A and the third gear set 9, realizing the one-way transmission of power from the drive shaft 1A to the output shaft 11.

[0067] Please refer to Figure 6 In the second transmission line T2, the drive shaft 1A rotates, driving the gears in the second gear set 4 to rotate, and the power is transmitted to the second gear set 4; the second gear set 4 drives the second intermediate shaft 2B to rotate, so that the gears in the fourth gear set 10 rotate, and the power is transmitted to the fourth gear set 10, and the fourth gear set 10 drives the output shaft 11 to rotate, and the second one-way clutch 7 connects the drive shaft 1A and the second gear set 4 to realize the one-way transmission of power from the drive shaft 1A to the output shaft 11.

[0068] In one embodiment, the clutch 5 is disposed on the drive shaft 1A, and the clutch 5 is connected to the third gear 41; on the drive shaft 1A, the first gear 31, the third gear 41 and the clutch 5 are sequentially arranged along the axial direction of the drive shaft 1A.

[0069] Please refer to Figure 1 , the clutch 5 is arranged on the drive shaft 1A and connected to the third gear 41, so as to control the switching of the first transmission line T1 and the second transmission line T2. When the clutch 5 is disconnected from the third gear 41, the transmission device is in the first transmission line T1, and the power is directly output from the drive shaft 1A to the intermediate shaft 2; when the clutch 5 is engaged with the third gear 41, the transmission device is in the second transmission line T2, and the power is output from the drive shaft 1A to the intermediate shaft 2 through the clutch 5. By controlling the transmission lines of the two powers of the transmission device through a single clutch 5, the design can be simplified, the manufacturing cost can be reduced, and the installation space can be saved; the control logic of a single clutch 5 is simpler than that of multiple clutches 5, and more accurate and stable transmission control can be achieved; energy loss can be reduced, and the energy efficiency of the entire transmission device can be improved. In the direction of the axial direction of the drive shaft 1A away from the driving member 1, the first gear 31, the third gear 41 and the clutch 5 are arranged in sequence. The first gear 31 is close to the driving member 1, the clutch 5 is far away from the driving member 1, and the third gear 41 is arranged between the first gear 31 and the clutch 5. The components are arranged axially along the drive shaft 1A, and the transmission device can be designed to have a relatively simple layout, be more compact, and save space; the axial arrangement, on the same axis, does not require an additional supporting structure; the friction between components can be reduced, reducing energy loss.

[0070] In one embodiment, the clutch 5 is disposed on the intermediate shaft 2 , and the clutch 5 is connected to the fourth gear 42 . On the intermediate shaft 2 , the second gear 32 , the clutch 5 and the fourth gear 42 are sequentially arranged along the axial direction of the intermediate shaft 2 .

[0071] Please refer to Figure 3 and Figure 4 , the clutch 5 is arranged on the intermediate shaft 2 and connected to the fourth gear 42, so as to control the switching of the first transmission line T1 and the second transmission line T2 of the transmission device. When the clutch 5 is engaged with the fourth gear 42, when the clutch 5 is disconnected from the fourth gear 42, the transmission device is in the first transmission line T1, and the power is directly output from the drive shaft 1A to the intermediate shaft 2; when the clutch 5 is disconnected from the fourth gear 42, the transmission device is in the second transmission line T2, and the power is output from the drive shaft 1A to the intermediate shaft 2 through the clutch 5. In the axial direction of the intermediate shaft 2, the second gear 32, the clutch 5 and the fourth gear 42 are arranged in sequence. The second gear 32 is close to the driving member 1, the fourth gear 42 is far away from the driving member 1, and the clutch 5 is arranged between the second gear 32 and the fourth gear 42. The components are arranged axially along the intermediate shaft 2, and the transmission device can be designed to have a relatively simple layout, be more compact, and save space; axial arrangement, on the same axis, does not require additional support structures; it can reduce friction between components and reduce energy loss.

[0072] In one embodiment, the first one-way clutch 6 is connected to the second gear 32, and the first one-way clutch 6 and the clutch 5 are combined into a power switching mechanism 8; or, the second one-way clutch 7 is connected to the fourth gear 42, and the second one-way clutch 7 and the clutch 5 are combined into a power switching mechanism 8; or, the first one-way clutch 6 is connected to the second gear 32, the second one-way clutch 7 is connected to the fourth gear 42, and the first one-way clutch 6, the second one-way clutch 7 and the clutch 5 are combined into a power switching mechanism 8.

[0073] Please refer to Figure 3 , Figure 4 and Figure 8 The first one-way clutch 6 and the clutch 5 are combined into a power switching mechanism 8, which controls the switching of the first transmission line T1 and the second transmission line T2 of the transmission device. When the first transmission line T1 is in transmission, the power switching mechanism 8 is in transmission, and the power is transmitted through the drive shaft 1A, the first gear set 3, the power switching mechanism 8 and the intermediate shaft 2; when the second transmission line T2 is in transmission, the power switching mechanism 8 is not in transmission, and the power is transmitted through the drive shaft 1A, the second gear set 4, and the intermediate shaft 2. The second one-way clutch 7 feeds back and recovers the power, recovering the power from the intermediate shaft 2, through the second gear set 4 and the drive shaft 1A, and the drive member 1, to form a third transmission line T3.

[0074] The second one-way clutch 7 is connected to the fourth gear 42, and the second one-way clutch 7 and the clutch 5 are combined into a power switching mechanism 8; the first one-way clutch 6, the second one-way clutch 7 and the clutch 5 are combined into a power switching mechanism 8. The obtained power switching mechanism 8 can control the switching of the first transmission line T1 and the second transmission line T2 of the transmission device, and can also form a third transmission line T3 to achieve the function of feedback recovery of power.

[0075] In one embodiment, the transmission device includes a third gear set 9 , and the intermediate shaft 2 is transmission-connected to the third gear set 9 .

[0076] Please refer to Figure 1 The transmission device includes a third gear set 9, and the intermediate shaft 2 is transmission-connected with the third gear set 9. The power rotated to the third gear set 9 is output through the intermediate shaft 2, thereby forming a three-stage transmission in the transmission device, and the transmission device can have good reliability and durability, and can withstand high torque and impact.

[0077] In one embodiment, the utility model provides a power system, which includes a transmission device and a wheel as described in any one of the above embodiments; the transmission device transmits power to rotate the wheel.

[0078] The transmission outputs power to the wheels, causing them to rotate.

[0079] In one embodiment, the utility model provides a vehicle, and the vehicle includes a power system as described in the above embodiment.

[0080] The vehicle may include a power system disposed on a front axle of the vehicle and may also be disposed on a rear axle of the vehicle;

[0081] The vehicle may include two powertrains, disposed at both the front and rear axles of the vehicle.

[0082] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship of the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0083] What is disclosed above is only a preferred embodiment of the present application, and it certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiment and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A transmission device, characterized in that: include: A driving member having a driving shaft; Intermediate shaft; A first gear set is drivingly connected to the driving shaft and the intermediate shaft respectively; A second gear set is drivingly connected to the driving shaft and the intermediate shaft respectively; a clutch, connected to the second gear set; The transmission device includes a first transmission circuit and a second transmission circuit; in the first transmission circuit, the drive shaft is driven to the intermediate shaft through the first gear set; in the second transmission circuit, the clutch is closed, and the drive shaft is driven to the intermediate shaft through the second gear set and the clutch.

2. The transmission device according to claim 1, characterized in that: The transmission device further comprises a first one-way clutch, which is disposed on the first transmission line and is suitable for enabling the drive shaft to transmit one-way transmission to the intermediate shaft.

3. The transmission device according to claim 2, characterized in that: The first gear set includes a first gear and a second gear, the first gear and the second gear are meshed; the first gear is connected to the driving shaft, and the second gear is connected to the intermediate shaft; The first one-way clutch connects the drive shaft and the first gear, and on the first transmission line, the drive shaft transmits power to the first gear through the first one-way clutch; Alternatively, the first one-way clutch connects the intermediate shaft and the second gear, and on the first transmission line, the second gear is transmitted to the intermediate shaft through the first one-way clutch.

4. The transmission device according to claim 2, characterized in that: The transmission device includes a third gear set, a fourth gear set and an output shaft, and the intermediate shaft includes a first intermediate shaft and a second intermediate shaft. In the first transmission line, the drive shaft is driven to the output shaft through the first gear set, the first intermediate shaft, the first one-way clutch, and the third gear set; In the second transmission line, the drive shaft is driven to the output shaft through the second gear set, the second intermediate shaft, and the fourth gear set; The first one-way clutch connects the first intermediate shaft and the third gear set.

5. The transmission device according to claim 3, characterized in that: The transmission device further comprises a second one-way clutch, which is disposed on the second transmission line and is suitable for enabling the drive shaft to transmit one-way transmission to the intermediate shaft.

6. The transmission device according to claim 5, characterized in that: The second gear set includes a third gear and a fourth gear, and the third gear is meshed with the fourth gear; The third gear is connected to the driving shaft, and the fourth gear is connected to the intermediate shaft; The second one-way clutch connects the drive shaft and the third gear, and on the second transmission line, the drive shaft transmits power to the third gear through the second one-way clutch; Alternatively, the second one-way clutch connects the intermediate shaft and the fourth gear, and on the second transmission line, the fourth gear is transmitted to the intermediate shaft through the second one-way clutch.

7. The transmission device according to claim 5, characterized in that: The transmission device includes a third gear set, a fourth gear set and an output shaft, and the intermediate shaft includes a first intermediate shaft and a second intermediate shaft. In the first transmission line, the drive shaft is driven to the output shaft through the first gear set, the first intermediate shaft, and the third gear set; In the second transmission line, the drive shaft is driven to the output shaft through the second gear set, the second intermediate shaft, and the fourth gear set; The first one-way clutch connects the first intermediate shaft and the third gear set; The second one-way clutch connects the first intermediate shaft and the second intermediate shaft, or the second one-way clutch connects the drive shaft and the second gear set.

8. The transmission device according to claim 6, characterized in that: The clutch is disposed on the driving shaft, and the clutch is connected to the third gear; on the driving shaft, the first gear, the third gear and the clutch are arranged in sequence along the axial direction of the driving shaft.

9. The transmission device according to claim 6, characterized in that: The clutch is disposed on the intermediate shaft, the clutch is connected to the fourth gear, and on the intermediate shaft, the second gear, the clutch and the fourth gear are arranged in sequence along the axial direction of the intermediate shaft.

10. The transmission device according to claim 9, characterized in that: The first one-way clutch is connected to the second gear, and the first one-way clutch and the clutch are combined to form a power switching mechanism; Or, the second one-way clutch is connected to the fourth gear, and the second one-way clutch and the clutch are combined to form a power switching mechanism; Alternatively, the first one-way clutch is connected to the second gear, the second one-way clutch is connected to the fourth gear, and the first one-way clutch, the second one-way clutch and the clutch are combined to form a power switching mechanism.

11. A power system, characterized in that: The power system comprises a transmission device and a wheel as described in any one of claims 1 to 10; the transmission device transmits power to rotate the wheel.

12. A vehicle, characterized in that: The vehicle includes the power system of claim 11.

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