Coaxial input-output variable torque differential drive device

Abstract

A coaxial input-output variable torque differential drive device comprises a motor subassembly, a torque converter subassembly and a differential subassembly. The motor subassembly comprises a rotor shaft milled with a rotor shaft output end tooth at the front end. The torque converter subassembly comprises a variable speed gear, the variable speed gear is provided on the housing of the differential subassembly, the rear end of a dead axle star wheel bracket is provided on a rear end cover portion of a torque converter housing, one end of a variable speed duplex star wheel axle is inserted into the rear end cover portion, the other end of the variable speed duplex star wheel axle is inserted into the front end of the dead axle star wheel bracket, the output A end of the differential subassembly is inserted into the front end of the dead axlestar wheel bracket, the output B end of the differential subassembly is provided on a torque converter end cover, a variable speed duplex star wheel is provided on the variable speed duplex star wheel axle, the rotor shaft output end tooth is in transmission connection with the variable speed gear through the variable speed duplex star wheel, a motor rear end cover is of an inward concave structure, a rotary transformer sleeves on the position, corresponding to the concave structure, of the rotor shaft, a rotary transformer seal end cover is provided on the outer side of the motor rear end cover, and the variable speed gear is provided with a variable speed gear oil-throw off hole. The coaxial input-output variable torque differential drive device is applicable to vehicles.

Description

technical field [0001] The invention relates to a drive device, in particular to a torque-variable differential drive device with coaxial input and output. Background technique [0002] At present, with the rapid development of society, people have more and more functional requirements for electric vehicles, more and more space requirements, and higher performance requirements. Chinese patent CN201310432849.1 discloses a coaxial motor torque converter differential assembly, including motor sub-assembly, torque converter sub-assembly and differential sub-assembly, the motor sub-assembly includes motor housing, The motor rear end cover and the motor front end cover respectively installed at both ends of the motor housing and the rotor shaft movably installed on the motor rear end cover and the motor front end cover, the rotor shaft is a hollow structure; the torque converter sub-assembly includes the torque converter The housing, the transmission mechanism and the torque conv...

AI Technical Summary

Problems solved by technology

[0006] Since the torque converter sub-assembly is prone to waste debris after being used for a period of time, and the gear train in the torque converter sub-assembly is a closed structure, the waste debris generated will stay in the gear train, thereby affecting the bearing system and gears. Causes wear and tear, greatly reducing service life

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