Drive apparatus or system
First Claim
1. A drive system for driving multiple drive shafts simultaneously, comprising a number of drive units, each for driving at least two drive shafts,wherein the drive units each comprise a motor unit and a gear train coupled to the motor unit, wherein the gear train comprises a compound differential planetary gear system having at least one input shaft coupled to the motor unit and at least two output shafts of which each output shaft is arranged for driving a drive shaft, wherein drive shafts driven by each drive unit comprise pinions that are arranged on different racks alongside each other, and wherein the compound differential planetary gear system comprises at least two planetary gear sets with different form factors that are coupled to each other.
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Accused Products
Abstract
The drive system comprises a drive unit. The drive unit comprises a motor unit and a gear train coupled to the motor unit. The gear train comprises a differential planetary gear system having a single input shaft connected to the motor unit. The differential planetary gear system further has at least two output shafts of which each output shaft is arranged for driving a drive shaft. The differential planetary gear system comprises at least two single planetary gear sets.
15 Citations
19 Claims
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1. A drive system for driving multiple drive shafts simultaneously, comprising a number of drive units, each for driving at least two drive shafts,
wherein the drive units each comprise a motor unit and a gear train coupled to the motor unit, wherein the gear train comprises a compound differential planetary gear system having at least one input shaft coupled to the motor unit and at least two output shafts of which each output shaft is arranged for driving a drive shaft, wherein drive shafts driven by each drive unit comprise pinions that are arranged on different racks alongside each other, and wherein the compound differential planetary gear system comprises at least two planetary gear sets with different form factors that are coupled to each other.
Specification