Dual motor drive system and agricultural machine

Abstract

The utility model discloses a double motor transmission system and agricultural machinery, including axle drive shaft, first motor shaft, second motor shaft, operation transmission shaft and adapter shaft subassembly, and operation transmission shaft is connected with first motor shaft through first clutch device, and adapter shaft subassembly includes first adapter shaft, second adapter shaft and third adapter shaft, and the axle gear group of meshing transmission is equipped between third adapter shaft and axle drive shaft, and the first gear group of meshing transmission is equipped between first motor shaft and first adapter shaft, and the second gear group of meshing transmission is equipped between second motor shaft and second adapter shaft, and first adapter shaft and third adapter shaft are equipped with first gear shift switching device between, to control power on-off, and second adapter shaft and third adapter shaft are equipped with second gear shift switching device between, to control power on-off, can obviously promote power to adapt to different working condition demand, and play the role of simplifying structure, reducing production difficulty and improving reliability.

Claims

1. A dual-motor drive system, characterized in that, include: Axle drive shaft (100) is connected to the axle assembly; The first motor shaft (200) is connected to the first motor (201); The second motor shaft (300) is connected to the second motor (301); The working drive shaft (400) is connected to the working device (401) and connected to the first motor shaft (200) through the first clutch device (410); The adapter shaft assembly includes a first adapter shaft (500), a second adapter shaft (600), and a third adapter shaft (700); The axle gear set (140) is provided between the third adapter shaft (700) and the axle drive shaft (100) for meshing transmission; the first gear set (210) is provided between the first motor shaft (200) and the first adapter shaft (500) for meshing transmission; the second gear set (310) is provided between the second motor shaft (300) and the second adapter shaft (600) for meshing transmission; a first gear shifting device is provided between the first adapter shaft (500) and the third adapter shaft (700) to control the power supply; and a second gear shifting device is provided between the second adapter shaft (600) and the third adapter shaft (700) to control the power supply.

2. The dual-motor drive system according to claim 1, characterized in that, The first adapter shaft (500) and the second adapter shaft (600) are arranged alternately on one side of the third adapter shaft (700).

3. The dual-motor drive system according to claim 1, characterized in that, The first adapter shaft (500) and the second adapter shaft (600) are coaxial and disconnected; And / or, the first motor shaft (200) and the second motor shaft (300) are arranged in parallel at a distance at a first height, the first adapter shaft (500) and the second adapter shaft (600) are coaxial and disconnected at a second height lower than the first height, and the first adapter shaft (500) and the second adapter shaft (600) are both located between the first motor shaft (200) and the second motor shaft (300), the third adapter shaft (700) is located at a third height lower than the second height, and the axle drive shaft (100) is located at a fourth height lower than the third height.

4. The dual-motor drive system according to claim 1, characterized in that, The second gear shifting device includes a fourth gear set (610), a fifth gear set (620), and a first engagement device (701). The fourth gear set (610) and the fifth gear set (620) are respectively staggered between the second adapter shaft (600) and the third adapter shaft (700) and are both configured for meshing transmission. The speed ratio of the fourth gear set (610) is less than the speed ratio of the fifth gear set (620). The first engagement device (701) is located between the fourth gear set (610) and the fifth gear set (620) and is used to switch between being disconnected from both gear sets and being engaged with one of the gear sets.

5. The dual-motor drive system according to claim 4, characterized in that, The second gear shifting device further includes a sixth gear set (630) and a second engagement device (702). The sixth gear set (630) is also provided between the second adapter shaft (600) and the third adapter shaft (700) for meshing transmission. The speed ratio of the sixth gear set (630) is set to be greater than the speed ratio of the fifth gear set (620). The second engagement device (702) is provided on the second adapter shaft (600) or the third adapter shaft (700) and is used to switch between disengaging from and engaging with the sixth gear set (630).

6. The dual-motor drive system according to claim 4, characterized in that, The driven gears in the fourth gear set (610) and the fifth gear set (620) are rotatably mounted on the third adapter shaft (700). The first engagement device (701) is mounted on the third adapter shaft (700) and located between the driven gears of the fourth gear set (610) and the fifth gear set (620), so as to be able to switch between disengaging from the two driven gears and engaging with one of the driven gears.

7. The dual-motor drive system according to claim 1, characterized in that, The first gear shifting device includes a third gear set (510) and a third engagement device (703). The third gear set (510) is meshed and driven between the first adapter shaft (500) and the third adapter shaft (700). The third engagement device (703) is disposed on the first adapter shaft (500) or the third adapter shaft (700) and is used to switch between disengaging from and engaging with the third gear set (510).

8. The dual-motor drive system according to claim 7, characterized in that, The first gear shifting device further includes a seventh gear set (520). The third gear set (510) and the seventh gear set (520) are respectively staggered between the first adapter shaft (500) and the third adapter shaft (700) and are both configured for meshing transmission. The speed ratios of the third gear set (510) and the seventh gear set (520) are set to be different and at least one of them is a speed reduction gear set. The third engagement device (703) is located between the third gear set (510) and the seventh gear set (520) and is used to switch between being disconnected from both gear sets and being engaged with one of the gear sets.

9. The dual-motor drive system according to any one of claims 1 to 8, characterized in that, The axle drive shaft (100) includes a front axle section (110) and a rear axle section (120) connected by a second clutch device (130). The axle gear set (140) includes an axle drive gear (141) disposed on the third adapter shaft (700) and an axle driven gear (142) disposed on the rear axle section (120). The second clutch device (130) is configured as a four-wheel drive clutch and is used to switch between engaging only with the rear axle section (120) and engaging with both axle sections.

10. An agricultural machine, characterized in that, The agricultural machinery includes a dual-motor drive system according to any one of claims 1 to 9.

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