A distributed dual-drive power assembly for high-power wheeled armored vehicles

Abstract

The present invention discloses a distributed dual-drive power assembly for high-power wheeled armored vehicles, comprising: a left electric drive assembly, a right electric drive assembly, and a bidirectional locking controllable clutch device. The right side of the left electric drive assembly is fixedly connected to the left side of the bidirectional locking controllable clutch device, and the left side of the right electric drive assembly is fixedly connected to the right side of the bidirectional locking controllable clutch device. The left and right electric drive assemblies have the same structure, size, and function, and are arranged in a mirror-image manner. The present invention forms a highly efficient, high-power-density, lightweight and miniaturized electric drive power unit by coaxially integrating a planetary reduction gear, a bidirectional locking controllable clutch device, and an output device with two motors. The electric drive power unit adopts a coaxial integrated configuration that integrates drive, reduction, and one-way clutch braking, making the structure more compact and the power transmission route more concise.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle transmission systems and relates to a distributed dual-drive force assembly for a high-power wheeled armored vehicle. Background Art

[0002] In the electric drivetrain powertrain solutions for wheeled armored vehicles, the future development trend is towards compact, lightweight, integrated electric drive assemblies, high speed, high power density, high efficiency, and low losses. In the field of high-power wheeled armored vehicles, various distributed electric drive solutions are used at the wheel side, typically consisting of a drive motor 01, a drive motor 02, a gear set 03, a gear set 04, a housing 05, and an output device 08.

[0003] Combine Figure 1 、 Figure 2 The high-power electric drive system adopts distributed drive of dual motors 1 and 2, and the dual motors are arranged separately (such as Figure 2 ), and dual motor centralized layout (such as Figure 1 ).like Figure 2 The integration is not high, the weight is heavy, and the longitudinal space and axial dimensions of the vehicle are large, which is not conducive to the overall layout of high-power wheeled vehicles and the upper body. Figure 1 Centralized layout integration ratio Figure 2 It is better, but the motors 01 and 02 and the gear sets 03 and 04 are not integrated, so they take up a lot of space both horizontally and vertically.

[0004] Combine Figure 1 、 Figure 2 There is a problem that when the vehicle is towing or the wheels are follower wheels, the drive motors 01 and 02 will still be dragged back, causing power loss of the drive motors, which cannot meet the future needs of efficient driving. Therefore, the background technology solution cannot meet the needs of wheeled armored vehicles for highly integrated lightweight, high power density and high-efficiency energy management. Summary of the Invention

[0005] (1) Purpose of the invention

[0006] The purpose of the present invention is to provide a compact, integrated, low-loss, high-efficiency electric drive power device for high-power wheeled armored vehicles, which forms an efficient, high-power-density, lightweight and miniaturized electric drive power device by coaxially integrating a planetary reduction device, a two-way locking controllable clutch device, and an output device with two motors.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the present invention provides a distributed dual-drive force assembly for a high-power wheeled armored vehicle, which includes: a left electric drive assembly 1, a right electric drive assembly 2, and a two-way locking controllable clutch device 3. The right side of the left electric drive assembly 1 is fixedly connected to the left side of the two-way locking controllable clutch device 3, and the left side of the right electric drive assembly 2 is fixedly connected to the right side of the two-way locking controllable clutch device 3. The left electric drive assembly 1 and the right electric drive assembly 2 have the same structure, size, and function and are arranged in a mirror image.

[0009] Among them, the left electric drive assembly 1 includes a left drive motor 4, a left reduction device 5, and a left output device 6 connected in sequence. The left reduction device 5 is a planetary reduction gear assembly, which is a single planetary gear or a planetary gear in NW structure. The left output device 6 outputs the power generated by the left drive motor 4 to the wheel side transmission.

[0010] Among them, the left drive motor 4 is a synchronous permanent magnet inner rotor motor, including a housing 7, a stator 8, a rotor 9, a rotating shaft 10, a left end cover 11, a right end cover 12, a bearing 13, a bearing 14, and an oil seal 15. The outer diameter of the stator 8 is interference fit with the inner hole of the motor housing 7, the rotor 9 and the stator 8 are electromagnetically connected through an air gap, the rotating shaft 10 is fixedly connected to the rotor 9, and a spline is provided at the right end of the rotating shaft 10 as the power input of the left reduction device 5. The left end cover 11 is fixedly connected to the motor housing 7, the outer ring of the bearing 13 is transitionally connected with the inner hole of the left end cover 11 and supported on the left end of the rotating shaft 10 with an interference fit connection, the outer ring of the bearing 14 is transitionally connected with the inner hole of the right end cover 12 and supported on the right end of the rotating shaft 10 with an interference fit connection; the left end cover 11, the right end cover 12 and the rotating shaft 10 are sealed by an oil seal 15.

[0011] Among them, the left reduction device 5 includes a sun gear 16, a planetary group 17, a frame 18, a bearing 19, a bearing 20, and a bearing seat 21. The sun gear 16 is spline-connected to the drive motor shaft 10, the planetary group 17 is meshed with the sun gear 16, the bearing seat 21 is fixedly connected to the right end cover 12, the inner hole is transition-fitted with the bearing 19, the outer circle of the bearing 19 is interference-fitted and supported on the left outer circle of the frame 18, and the inner ring of the bearing 20 is interference-fitted and supported on the right outer circle of the frame 18.

[0012] Among them, the left output device 6 includes a left half-shaft output flange 22, a left bearing seat 23, a bearing 24, a locking nut 25 and a locking washer 26, an oil seal seat 27, and an oil seal 28; the right end of the left half-shaft output flange 22 in the left output device 6 is spline-connected to the frame 18 of the left reduction gear 5; the left half-shaft output flange 22 is supported on the bearing seat 23 by cooperating with the bearing 24, and the right side of the left end of the left half-shaft output flange 22 is fixedly connected to the inner ring of the bearing 24 and the left half-shaft output flange 22 by the locking nut 25 and the locking washer 26, the outer ring of the bearing 24 is cooperating with the left bearing seat 23, the left end face of the bearing 24 is in contact with the right end face of the oil seal seat 27, the oil seal seat 27 is fixedly connected to the left bearing seat 23, and the oil seal 28 is respectively cooperating with the inner hole of the oil seal seat 27 and the shaft portion of the left half-shaft output flange 22 to seal the oil.

[0013] The right electric drive assembly 2 includes a right drive motor 47 , a right reduction gear 48 , and a right output device 49 , and its structural principle and connection method are the same as those of the left electric drive assembly 1 .

[0014] Among them, the bidirectional locking controllable clutch device 3 is arranged coaxially with the left electric drive assembly 1 and the right electric drive assembly 2, including a left controllable clutch assembly 29 and a right controllable clutch assembly 30. The left controllable clutch assembly 29 and the right controllable clutch assembly 30 are arranged in mirror symmetry and fixedly connected by bolts 31.

[0015] The left controllable clutch assembly 29 includes a left housing 32, a left fixed support 33, a left rotating disc 34, a left movable disc 35, a left brake friction plate group 36, a composite gear ring 37, a spring 38, a snap ring 39, a small steel ball 40, and a large ball 41; the inner hole of the left housing 32, the outer circle of the composite gear ring 37, the inner and outer circles of the left brake friction plate group 36, and the outer circle of the left movable disc 35 are all provided with teeth and grooves, wherein the teeth of the outer circle of the left brake friction plate group 36 are meshed with the grooves of the inner hole of the left housing 32 and can be Axial movement, the left end face of the left brake friction plate group 36 is fitted and connected with the end face of the inner hole of the left housing 32; the teeth of the outer circle of the compound gear ring 37 are meshed with the grooves in the inner hole of the left brake friction plate group 36, and the compound gear ring 37 is meshed and connected with the planetary group 17; the left rotating disk 34 is provided with a handle rod 42, which is used to control the rotation angle of the left rotating disk 34; the outer circle of the left rotating disk 34 is in clearance with the inner hole of the left housing 32, and the inner hole of the left rotating disk 34 is in clearance with the outer circle of the left fixed support 33 The right inner hole of the left rotating disk 34 and the outer circle of the left fixed support 33 form an annular groove for placing several small steel balls 40 in rolling cooperation; the left end portion of the left rotating disk 34 is provided with several oblique grooves 43, and the right end portion of the left movable disk 35 is provided with an oblique groove 44. The oblique groove has the same structure, position and number as the oblique groove 43 of the left rotating disk 34, and the large steel ball 41 rolls with the oblique groove 43 of the left rotating disk 34 and the oblique groove 44 of the left movable disk 35; the teeth of the outer circle of the left movable disk 35 mesh with the groove of the left housing 32, and the left The lower end surface of the movable disk 35 is provided with several columnar protrusions 45. A gap is left between the right side of the lower end surface of the left movable disk 35 and the left side of the end surface of the left fixed support 33. The left fixed support 33 is provided with stepped grooves 46 with the same number as the columnar protrusions 45 of the left movable disk 35. The columnar protrusions 45 of the left movable disk 35 pass through the stepped grooves 46 of the left fixed support 33 with a gap fit. The same number of springs 38 as the columnar protrusions 45 are placed in the stepped grooves 46 and are axially limitedly connected to the columnar protrusions 45 through a retaining ring 39.

[0016] The left controllable clutch assembly 29 and the right controllable clutch assembly 30 in the bidirectional locking controllable clutch device 3 are independently controllable, and the structure of the right controllable clutch assembly 30 is the same as that of the left controllable clutch assembly 29 .

[0017] When the left controllable clutch assembly 29 is working, the handle 42 is pushed, and the left rotating disc 34 rotates along the raceway formed by the steel ball 40 and the left fixed support 33. The rotation of the left rotating disc 34 drives the steel ball 41 to roll from the center end to the small end along the groove 43. The steel ball 41 also rolls from the center end to the small end along the groove 44 of the left movable disc 35. At this time, the force of the spring 38 is overcome, and the left movable disc 35 moves axially to the left along the tooth groove of the left housing 32, pushing the left brake friction plate group 36 to compress the gap, so that the friction plates are fully contacted. At this time, the compound ring gear 37 is engaged with the tooth groove of the housing 32, and the compound ring gear 37 is in a braking state.

[0018] The left drive motor 4 provides driving force and inputs power to the sun gear 16 through the spline of the rotating shaft 10. Since the compound ring gear 37 is in the braking state at this time, the power is output through the frame 18. The frame 18 outputs the power to the left half-shaft output flange 22 through the spline connection. The left half-shaft output flange 22 is connected to the wheel side device, and finally drives the wheel to rotate.

[0019] When the handle rod 42 is in its original state, that is, when the handle rod 42 is not pushed, it is reset by the spring 38, the left brake friction plate group 36 moves axially to the right, and the steel ball 41 is located at the center end of the groove of the left rotating disk 34 and the left movable disk 35. At this time, the compound ring gear 37 is in a free state; when the left drive motor 4 provides driving force, the frame 18 has no power output, the left half-shaft output flange 22 has no power output, and the wheel is in a follow-up state.

[0020] (3) Beneficial effects

[0021] The distributed dual-drive power assembly for high-power wheeled armored vehicles provided by the above technical solution forms an efficient, high-power-density, lightweight and miniaturized electric drive power unit through the coaxial integration of a planetary reduction device, a two-way locking controllable clutch device, and an output device with two motors; the electric drive power unit adopts a coaxial integrated configuration that integrates drive, reduction, and one-way clutch braking, making the structure more compact and the power transmission route simpler; due to the integration of a two-way locking controllable clutch device, the vehicle power loss can be reduced when the vehicle drive mode is converted (for example, 8×8 is converted to 6×6 or 4×4) or when the vehicle is towing, and the power can be cut off at any time when a drive wheel fails, thereby increasing the service life of the electric drive power unit and improving the efficiency of the entire electric transmission system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 and Figure 2 They are schematic diagrams of two distributed electric drive solutions in the existing technology.

[0023] Figure 3 This is a simplified transmission diagram of a high-power distributed dual-drive powertrain according to an embodiment of the present invention.

[0024] Figure 4 This is a cross-sectional view of the high-power distributed dual-drive powertrain structure according to an embodiment of the present invention.

[0025] Figure 5 This is a cross-sectional view of the structure of a bidirectional locking controllable clutch device according to an embodiment of the present invention.

[0026] Figure 6 This is a partial cross-sectional view of a moving disk according to an embodiment of the present invention.

[0027] Figure 7 This is a partial cross-sectional view of a rotating disk according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below with reference to the accompanying drawings and examples.

[0029] Reference Figures 3 to 7 As shown, this embodiment provides a high-power-density distributed electric drive device for high-power wheeled armored vehicles, adopts an integrated driving and deceleration coaxial configuration, and forms a high-efficiency power electric transmission device with the shortest power transmission route.

[0030] The distributed dual-drive force assembly for a high-power wheeled armored vehicle in this embodiment includes a left electric drive assembly 1, a right electric drive assembly 2, and a bidirectional locking controllable clutch device 3. The right side of the left electric drive assembly 1 is fixedly connected to the left side of the bidirectional locking controllable clutch device 3, and the left side of the right electric drive assembly 2 is fixedly connected to the right side of the bidirectional locking controllable clutch device 3. The left electric drive assembly 1 and the right electric drive assembly 2 have the same structure, size, and function and are arranged in a mirror image.

[0031] This embodiment utilizes a coaxial, integrated configuration that integrates drive, deceleration, and one-way clutching and braking, resulting in a more compact structure and a simpler power transmission path. The integrated bidirectional locking controllable clutch reduces vehicle power loss during drive mode transitions or when towing. It also instantly cuts power if a drive wheel fails, extending the life of the electric drive unit and improving the efficiency of the entire electric drive system.

[0032] The left electric drive assembly 1 includes a left drive motor 4, a left reduction gear 5, and a left output device 6 connected in sequence. The left reduction gear 5 is a planetary reduction gear assembly, which is a single planetary gear or a planetary gear in NW structure. The left output device 6 outputs the power generated by the left drive motor 4 to the wheel side transmission.

[0033] The left drive motor 4 is a synchronous permanent magnet inner rotor motor, consisting of a housing 7, a stator 8, a rotor 9, a shaft 10, a left end cap 11, a right end cap 12, a bearing 13, a bearing 14, and an oil seal 15. The outer diameter of the stator 8 is interference-fitted with the inner bore of the motor housing 7. The rotor 9 and the stator 8 are electromagnetically connected via an air gap. The shaft 10 is fixedly connected to the rotor 9. A spline is provided at the right end of the shaft 10 as power input for the left reduction gear 5. The left end cap 11 is fixedly connected to the motor housing 7. The outer ring of the bearing 13 is transitionally connected to the inner bore of the left end cap 11 and supported on the left end of the shaft 10 in an interference-fit connection. The outer ring of the bearing 14 is transitionally connected to the inner bore of the right end cap 12 and supported on the right end of the shaft 10 in an interference-fit connection. The left and right end caps 11 and 12 are sealed from the shaft 10 by an oil seal 15.

[0034] The left reduction gear 5 includes a sun gear 16, a planetary group 17, a frame 18, a bearing 19, a bearing 20, and a bearing seat 21. The sun gear 16 is spline-connected to the drive motor shaft 10, the planetary group 17 is meshed with the sun gear 16, the bearing seat 21 is fixedly connected to the right end cover 12, the inner hole is transition-fitted with the bearing 19, the outer circle of the bearing 19 is supported and connected to the left outer circle of the frame 18 by an interference fit, and the inner ring of the bearing 20 is supported and connected to the right outer circle of the frame 18 by an interference fit.

[0035] The left output device 6 includes a left half-shaft output flange 22 , a left bearing seat 23 , a bearing 24 , a locking nut 25 and a locking washer 26 , an oil seal seat 27 , and an oil seal 28 .

[0036] The right end of the left half-shaft output flange 22 in the left output device 6 is spline-connected to the frame 18 of the left reduction gear 5; the left half-shaft output flange 22 is supported on the bearing seat 23 by being connected with the bearing 24. The right side of the left end of the left half-shaft output flange 22 is fixedly connected to the inner ring of the bearing 24 and the left half-shaft output flange 22 by a locking nut 25 and a locking washer 26. The outer ring of the bearing 24 is connected with the left bearing seat 23. The left end face of the bearing 24 is fitted with the right end face of the oil seal seat 27, maintaining a gap of 0.10 to 0.20. The oil seal seat 27 is fixedly connected to the left bearing seat 23. The oil seal 28 is respectively connected with the inner hole of the oil seal seat 27 and the shaft of the left half-shaft output flange 22 to seal the oil.

[0037] The right electric drive assembly 2 includes a right drive motor 47, a right reduction gear 48, and a right output device 49. Its structural principle and connection method are the same as those of the left electric drive assembly 1.

[0038] The bidirectional locking controllable clutch device 3, which functions to output a steady-state driving condition and optimize driving conditions, is coaxially arranged with the left electric drive assembly 1 and the right electric drive assembly 2 and includes a left controllable clutch assembly 29 and a right controllable clutch assembly 30. The left and right controllable clutch assemblies 29 and 30 are arranged in mirror-symmetrical arrangement and are fixedly connected by bolts 31.

[0039] like Figure 3 、 Figure 4As shown, the left controllable clutch assembly 29 includes a left housing 32, a left fixed support 33, a left rotating disc 34, a left movable disc 35, a left brake friction plate group 36, a compound ring gear 37, a spring 38, a snap ring 39, a small steel ball 40, and a large ball 41. The inner hole of the left housing 32, the outer circle of the compound ring gear 37, the inner and outer circles of the left brake friction plate group 36, and the outer circle of the left movable disc 35 are all provided with teeth (grooves). The teeth on the outer circle of the left brake friction plate group 36 mesh with the grooves in the inner hole of the left housing 32 and are axially movable. The left end face of the left brake friction plate group 36 is in close contact with the end face of the inner hole of the left housing 32; the teeth on the outer circle of the compound ring gear 37 mesh with the grooves in the inner hole of the left brake friction plate group 36, and the compound ring gear 37 is in meshing connection with the planetary group 17.

[0040] like Figure 5 、 Figure 6 、 Figure 7 As shown, the left rotating disk 34 is provided with a handle 42, which is used to manipulate the left rotating disk 34 to rotate a certain angle. The manipulation can be hydraulic, electric, or mechanical. The outer circumference of the left rotating disk 34 is in clearance with the inner hole of the left shell 32. The inner hole of the left rotating disk 34 is in clearance with the outer circumference of the left fixed support 33. The right inner hole of the left rotating disk 34 and the outer circumference of the left fixed support 33 form an annular groove in which several small steel balls 40 are placed and roll in engagement. The left end of the left rotating disk 34 is provided with several inclined grooves 43, and the right end of the left movable disk 35 is provided with inclined grooves 44. The inclined grooves have the same structure, position, and number as the inclined grooves 43 of the left rotating disk 34. The large steel balls 41 roll in engagement with the inclined grooves 43 of the left rotating disk 34 and the inclined grooves 44 of the left movable disk 35. The teeth on the outer circumference of the left movable disk 35 mesh with the grooves of the left shell 32. The lower end surface of the left movable disk 35 is provided with several columnar protrusions 45, and a gap of no more than 1 mm is left between the right side of the lower end surface of the left movable disk 35 and the left side of the end surface of the left fixed support 33. The left fixed support 33 is provided with stepped grooves 46 with the same number as the columnar protrusions 45 of the left movable disk 35. The columnar protrusions 45 of the left movable disk 35 pass through the stepped grooves 46 of the left fixed support 33 with a clearance fit, and the same number of springs 38 as the columnar protrusions 45 are placed in the stepped grooves 46 and axially limitedly connected to the columnar protrusions 45 through a retaining ring 39.

[0041] The left controllable clutch assembly 29 and the right controllable clutch assembly 30 in the bidirectional locking controllable clutch device 3 are independently controllable and do not interfere with each other. The composition, function, principle and connection description of the left controllable clutch assembly 29 are the same as those of the right controllable clutch assembly 30.

[0042] The working principle of the left controllable clutch assembly 29 is:

[0043] Through the operating system, the handle 42 is pushed, and the left rotating disk 34 rotates along the raceway formed by the steel ball 40 and the left fixed support 33. The rotation of the left rotating disk 34 drives the steel ball 41 to roll from the center end to the small end along the groove 43. The steel ball 41 also rolls from the center end to the small end along the groove 44 of the left movable disk 35. At this time, the force of the spring 38 is overcome, and the left movable disk 35 moves axially to the left along the tooth groove of the left housing 32, pushing the left brake friction plate group 36 to compress the gap so that the friction plate is fully contacted. At this time, the compound ring gear 37 is engaged with the tooth groove of the housing 32, and the compound ring gear 37 is in a braking state.

[0044] Power transmission: The left drive motor 4 provides driving force, and the power is input into the sun gear 16 through the spline of the rotating shaft 10. Since the compound ring gear 37 is in a braking state at this time, the power is output through the frame 18. The frame 18 outputs the power to the left half-shaft output flange 22 through the spline connection. The left half-shaft output flange 22 is connected to the wheel side device, and finally drives the wheel to rotate.

[0045] When the handle 42 is in its original position (i.e., not in motion), the spring 38 resets the left brake friction plate assembly 36 axially to the right, and the steel ball 41 is positioned at the center of the grooves between the left rotating plate 34 and the left movable plate 35. At this point, the compound ring gear 37 is in a free state. When the left drive motor 4 is providing driving force, the frame 18 and the left axle output flange 22 are both deenergized, and the wheel is in a follower state. Similarly, in this state, if the left drive motor 4 is not providing driving force, the wheel is in a follower state, and energy recovery, such as from braking the tire, does not occur. However, this also reduces the power loss of the drive motor.

[0046] The operation mode of the operating handle rod 42 can be hydraulic, electric or mechanical connection, which is not within the scope of the present invention.

[0047] The operating conditions of the distributed dual-drive powertrain of this embodiment after installation in a vehicle are described as follows:

[0048] Working condition 1: Steady-state driving condition

[0049] At this time, it is a dual-side drive condition - the left electric drive assembly 1 and the right electric drive assembly 2 are driven at the same time, and can stably output power to the wheel-side drive. At this time, the two-way locking controllable clutch device is in a two-way (left and right) braking state, and the compound ring gear is in a locked state with the two-way locking controllable clutch device.

[0050] This operating condition is used for any road conditions such as high-speed driving, low-speed climbing, obstacle crossing, off-road muddy roads, etc., to provide driving force for the entire vehicle to the wheel side drive.

[0051] Working condition 2: specific driving condition

[0052] At this time, it is a no-drive working condition on both sides - the left electric drive assembly 1 and the right electric drive assembly 2 have no power output. At this time, the two-way locking controllable clutch device is in a free state (there is no braking state on both the left and right sides), and the compound ring gear is in a free state.

[0053] This working condition is used for vehicle trailers or when one of the bridges is a non-drive bridge, that is, the wheel side drive is a follower wheel working condition.

[0054] Working condition three: small radius turning or center turning driving condition

[0055] At this time, it is a unilateral drive working condition - the left electric drive assembly 1 and the right electric drive assembly 2 only output power to the wheel-side drive on one side according to demand, and no power is output to the wheel-side drive on the other side. At this time, the two-way locking controllable clutch device is in a one-way (left or right) braking state, and the compound ring gear is in a one-way (left or right) locking state with the two-way locking controllable clutch device.

[0056] This operating condition can be used when the vehicle is turning in a small radius or center turn, and one side of the tire needs to be a follower wheel or in a braking state.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A distributed dual-drive power assembly for a high-power wheeled armored vehicle, characterized in that: include: A left electric drive assembly (1), a right electric drive assembly (2), and a two-way locking controllable clutch device (3); the right side of the left electric drive assembly (1) is fixedly connected to the left side of the two-way locking controllable clutch device (3); the left side of the right electric drive assembly (2) is fixedly connected to the right side of the two-way locking controllable clutch device (3); the left electric drive assembly (1) and the right electric drive assembly (2) have the same structure, size, and function, and are arranged in a mirror image; The bidirectional locking controllable clutch device (3) is coaxially arranged with the left electric drive assembly (1) and the right electric drive assembly (2), and comprises a left controllable clutch assembly (29) and a right controllable clutch assembly (30). The left controllable clutch assembly (29) and the right controllable clutch assembly (30) are arranged in mirror symmetry and are fixedly connected by bolts (31); The left controllable clutch assembly (29) comprises a left housing (32), a left fixed support (33), a left rotating disc (34), a left movable disc (35), a left brake friction plate group (36), a composite gear ring (37), a spring (38), a snap ring (39), a small steel ball (40), and a large ball (41); the inner hole of the left housing (32), the outer circle of the composite gear ring (37), the inner and outer circles of the left brake friction plate group (36), and the outer circle of the left movable disc (35) are all provided with teeth and grooves, wherein the teeth of the outer circle of the left brake friction plate group (36) are meshed with the grooves of the inner hole of the left housing (32) and can be Axially moving, the left end face of the left brake friction plate group (36) is fitted and connected with the end face of the inner hole of the left shell (32); the teeth of the outer circle of the compound gear ring (37) are meshed with the grooves of the inner hole of the left brake friction plate group (36), and the compound gear ring (37) is meshed and connected with the planetary group (17); the left rotating disk (34) is provided with a handle rod (42), and the handle rod (42) is used to control the rotation angle of the left rotating disk (34); the outer circle of the left rotating disk (34) is clearance-matched with the inner hole of the left shell (32), and the inner hole of the left rotating disk (34) is clearance-matched with the outer circle of the left fixed support (33), and the left rotating disk (34) is clearance-matched with the outer circle of the left fixed support (33). The right inner hole of the moving disk (34) and the outer circle of the left fixed support (33) form an annular groove to place several small steel balls (40) for rolling cooperation; the left end of the left rotating disk (34) is provided with several inclined grooves (43), and the right end of the left movable disk (35) is provided with an inclined groove (44). The inclined groove has the same structure, position and number as the inclined groove (43) of the left rotating disk (34). The large steel ball (41) rolls with the inclined groove (43) of the left rotating disk (34) and the inclined groove (44) of the left movable disk (35); the teeth of the outer circle of the left movable disk (35) are meshed with the groove of the left housing (32). The lower end surface of the left movable plate (35) is provided with a plurality of columnar protrusions (45), a gap is left between the right side of the lower end surface of the left movable plate (35) and the left side of the end surface of the left fixed support (33), the left fixed support (33) is provided with a stepped groove (46) with the same number as the columnar protrusions (45) of the left movable plate (35), the columnar protrusions (45) of the left movable plate (35) pass through the stepped groove (46) of the left fixed support (33) with a gap fit, and the springs (38) with the same number as the columnar protrusions (45) are placed in the stepped groove (46) and axially limitedly connected to the columnar protrusions (45) through a snap ring (39).

2. The distributed dual-drive power assembly for a high-power wheeled armored vehicle according to claim 1, characterized in that: The left electric drive assembly (1) comprises a left drive motor (4), a left reduction gear (5), and a left output device (6) connected in sequence. The left reduction gear (5) is a planetary reduction gear assembly, which is a single planetary gear or a planetary gear in an NW structure. The left output device (6) outputs the power generated by the left drive motor (4) to the wheel side transmission.

3. The distributed dual-drive power assembly for a high-power wheeled armored vehicle according to claim 2, characterized in that: The left drive motor (4) is a synchronous permanent magnet inner rotor motor, comprising a housing (7), a stator (8), a rotor (9), a rotating shaft (10), a left end cover (11), a right end cover (12), a first bearing (13), a second bearing (14), and an oil seal (15). The outer diameter of the stator (8) is interference-fitted with the inner hole of the motor housing (7). The rotor (9) and the stator (8) are electromagnetically connected via an air gap. The rotating shaft (10) is fixedly connected to the rotor (9). The right end of the rotating shaft (10) is provided with a flower The key serves as the power input of the left reduction device (5), the left end cover (11) is fixedly connected to the motor housing (7), the outer ring of the first bearing (13) is connected with the inner hole of the left end cover (11) in a transition fit and supported on the left end of the rotating shaft (10) in an interference fit connection, the outer ring of the second bearing (14) is connected with the inner hole of the right end cover (12) in a transition fit and supported on the right end of the rotating shaft (10) in an interference fit connection; the left end cover (11), the right end cover (12) and the rotating shaft (10) are sealed by an oil seal (15).

4. The distributed dual-drive power assembly for a high-power wheeled armored vehicle according to claim 3, characterized in that: The left reduction gear (5) comprises a sun gear (16), a planetary group (17), a frame (18), a bearing three (19), a bearing four (20), and a bearing seat (21); the sun gear (16) is spline-connected to the drive motor shaft (10); the planetary group (17) is meshed with the sun gear (16); the bearing seat (21) is fixedly connected to the right end cover (12); the inner hole is transitionally connected to the bearing three (19); the outer circle of the bearing three (19) is interference-fitted and supported on the left outer circle of the frame (18); and the inner ring of the bearing four (20) is interference-fitted and supported on the right outer circle of the frame (18).

5. The distributed dual-drive power assembly for a high-power wheeled armored vehicle according to claim 4, characterized in that: The left output device (6) comprises a left half-shaft output flange (22), a left bearing seat (23), a bearing five (24), a locking nut (25), a locking washer (26), an oil seal seat (27), and an oil seal (28); the right end of the left half-shaft output flange (22) in the left output device (6) is spline-connected to the frame (18) of the left reduction device (5); the left half-shaft output flange (22) is supported on the bearing seat (23) by being connected with the bearing five (24); the left half-shaft output flange (2 2) The right side of the left end is fixedly connected to the inner ring of the bearing five (24) and the left half-shaft output flange (22) through a locking nut (25) and a locking washer (26), the outer ring of the bearing five (24) is matched with the left bearing seat (23), the left end face of the bearing five (24) is fitted with the right end face of the oil seal seat (27), the oil seal seat (27) is fixedly connected to the left bearing seat (23), and the oil seal (28) is matched with the inner hole of the oil seal seat (27) and the shaft of the left half-shaft output flange (22) to seal the oil.

6. The distributed dual-drive power assembly for a high-power wheeled armored vehicle according to claim 5, characterized in that: The right electric drive assembly (2) comprises a right drive motor (47), a right reduction gear (48), and a right output device (49), and its structural principle and connection method are the same as those of the left electric drive assembly (1).

7. The distributed dual-drive power assembly for a high-power wheeled armored vehicle according to claim 6, characterized in that: The left controllable clutch assembly (29) and the right controllable clutch assembly (30) in the bidirectional locking controllable clutch device (3) are independently controllable, and the structure of the right controllable clutch assembly (30) is the same as that of the left controllable clutch assembly (29).

8. The distributed dual-drive power assembly for a high-power wheeled armored vehicle according to claim 7, characterized in that: When the left controllable clutch assembly (29) is working, the handle (42) is pushed, and the left rotating disc (34) rotates along the raceway formed by the steel ball (40) and the left fixed support (33). The rotation of the left rotating disc (34) drives the steel ball (41) to roll from the center end to the small end along the groove (43). The steel ball (41) also rolls from the center end to the small end along the inclined groove (44) of the left movable disc (35). At this time, the force of the spring (38) is overcome, and the left movable disc (35) moves axially to the left along the tooth groove of the left housing (32), pushing the left brake friction plate group (36) to compress the gap, so that the friction plate is fully in contact. At this time, the composite gear ring (37) is engaged with the tooth groove of the housing (32), and the composite gear ring (37) is in a braking state. The left drive motor (4) provides driving force, and inputs the power into the sun gear (16) through the spline of the rotating shaft (10). Since the compound ring gear (37) is in a braking state at this time, the power is output through the frame (18). The frame (18) outputs the power to the left half shaft output flange (22) through the spline connection. The left half shaft output flange (22) is connected to the wheel side device, and finally drives the wheel to rotate; When the handle (42) is in its original state, i.e., when the handle (42) is not pushed, it is reset by the spring (38), the left brake friction plate group (36) moves axially to the right, and the steel ball (41) is located at the center end of the groove of the left rotating disk (34) and the left movable disk (35). At this time, the compound gear ring (37) is in a free state; when the left drive motor (4) provides driving force, the frame (18) has no power output, the left half-shaft output flange (22) has no power output, and the wheel is in a follower state.

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