Split differential motor drive axle
A differential gear and electric motor technology, applied in the direction of differential transmission, mechanical equipment, transmission, etc., can solve the problems of reduced service life of the motor, poor heat dissipation, time-consuming and labor-intensive problems, and achieve convenient and simple maintenance and improved heat dissipation performance , long service life effect
Inactive Publication Date: 2009-12-09
上海中上汽车科技有限公司
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Problems solved by technology
[0002] At present, because the differential is wrapped by the motor rotor in the existing differential motor drive axle, the volume of the differential motor drive axle is large and heavy, the heat dissipation is not good, and the differential housing and the motor housing are integrated. Yes, the motor needs to be disassembled at the same time when repairing the differential, which is time-consuming and laborious, and greatly reduces the service life of the motor
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Embodiment 1
[0017] A split type differential motor drive axle of this embodiment refers to the attached figure 1 , including the motor casing 8 and the differential casing 14 with the connection base 9 installed, the two ends of the motor casing 8 are respectively connected with the motor support 11 and the motor side cover 6, and the permanent magnet 18 and the motor rotor are installed in the motor casing 8 17. Both ends of the differential housing 14 are respectively connected to the motor support 11, and a differential is installed in the differential housing 14; the motor support 11 is connected to the motor bearing 12 installed with the motor bearing oil seal 13 The motor casing 8 is connected with the motor support 11 and the motor side cover 6 through bolts 7 and 10, and the differential case 14 is connected with the motor support 11 through bolts 16; the differential includes a planetary gear shaft 19 and the planetary gear 20 sleeved thereon, the planetary gear 20 is meshed with...
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The invention relates to a split differential motor drive axle for an electric car, and belongs to the technical field of chassis drive devices of electric cars. The motor drive axle of the split differential is characterized in that a differential motor and a rear axle of the electric car are integrated; a differential shell and a motor shell are split; the split differential motor drive axle comprises the motor shell provided with a connecting base and the differential shell; two ends of the motor shell are connected with a motor support and a motor side cover respectively; a permanent magnet and motor rotors are arranged in the motor shell, two ends of the differential shell are connected with the motor support respectively, and a differential is arranged in the differential shell. Thesplit differential motor drive axle is provided with the differential shell and the motor shell, only the differential shell is detached and the motor does not need to be detached when the differential is maintained, so the maintenance is convenient and simple, and the service life is long; the motor rotors are arranged at two sides of the differential, so the volume of the motor is remarkably reduced; and the differential is not wrapped by the motor rotors any more, so the heat dispersion performance is remarkably improved.
Description
technical field [0001] The invention relates to a split-type differential motor drive axle system for electric cars, which belongs to the technical field of electric car chassis drive devices. Background technique [0002] At present, because the differential is wrapped by the motor rotor in the existing differential motor drive axle, the volume of the differential motor drive axle is large and heavy, the heat dissipation is not good, and the differential housing and the motor housing are integrated. Yes, when repairing the differential, the motor needs to be disassembled at the same time, which is time-consuming and laborious, and greatly reduces the service life of the motor. Contents of the invention [0003] The purpose of the present invention is to solve the shortcomings of the above-mentioned prior art, and provide a split type differential motor drive axle with small volume, good heat dissipation effect, long service life and convenient installation and disassembly...
Claims
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IPC IPC(8): B60K17/16F16H48/06
Inventor 谢鎔安王瑷国隋月梅
Owner 上海中上汽车科技有限公司