5results about How to "Large speed ratio" patented technology

A double-motor double-gear gearbox of a pure electric loader comprises two motors, a coupling input assembly for dynamically coupling the two motors, a gear shifting assembly with a two-gear speed changing function, an output shaft and a brake installed on the output shaft. The transmission is characterized in that the coupling input assembly, the gear shifting assembly and the output shaft are sequentially meshed from top to bottom and distributed in a parallel shaft mode, and a three-level parallel shaft structure is formed. A three-stage parallel shaft structure is formed, the axial size of the gearbox is shortened, the structural compactness of the gearbox is improved, the space requirement for arrangement of the gearbox is lowered, flexible arrangement of the gearbox and a transfer case on the loader is facilitated, the power output requirement for speed reduction and torque increase is met, and the requirement for output torque of a motor is lowered; walking driving requirements under different working conditions are met, and the weight and cost of the gearbox are reduced.

The utility model relates to a bicycle drive device technical field, specifically disclose a coaxial planetary row structure bicycle power assisting mechanism, including long axle, be equipped with the casing group on long axle, be equipped with motor assembly and planetary row gear mechanism between long axle and casing group, long axle passes through casing group, motor assembly and planetary row gear mechanism, long axle and casing group, motor assembly and planetary row gear mechanism coaxial arrangement, long axle is connected with the sprocket of casing outside, planetary row gear mechanism is located between motor assembly and sprocket, planetary row gear mechanism includes retainer, a plurality of planetary wheel, sun wheel and the inner tooth ring of connecting on casing group, a plurality of planetary wheel and inner tooth ring engage, long axle is equipped with the ratchet mechanism and sensor in the retainer, and the motor shaft in motor assembly is connected through one -way bearing between sun wheel. The power assisting mechanism in scheme can improve space utilization, reduce the weight of car body, shorten axial space.

The utility model discloses a coaxial electric drive axle of big reduction ratio and vehicle, including motor, reduction mechanism and differential, reduction mechanism at least includes sun gear, planetary gear assembly, support ring gear and output ring gear, and differential includes rotator and two drive shafts, and planetary gear assembly includes planet carrier and with coaxial connection's first planetary gear and second planetary gear, and the rotor axle of motor is connected sun gear, and sun gear connects first planetary gear and / or second planetary gear, and first planetary gear and support ring gear are engaged, and second planetary gear and output ring gear are engaged, and output ring gear connects rotator, and one drive shaft of differential is arranged in the axle of rotor axle and sun gear's axle center, to guarantee the torque of motor output deceleration, increase the twist after transmission to rotator through reduction mechanism, and then guarantee the torque distribution to two drive shafts, and such can realize big reduction ratio, and the whole radial dimension is small, and cost is low and occupies small space.

The utility model discloses a height difference torque vector distribution device which comprises a differential mechanism, a left half shaft is connected to one end of the differential mechanism, and a right half shaft is connected to the other end of the differential mechanism; a motor is arranged on one side of the left half shaft, a first-stage speed reduction assembly is arranged on the motor, a third-stage speed reduction assembly is arranged on the left half shaft, and the third-stage speed reduction assembly is in transmission connection with the first-stage speed reduction assembly through a second-stage speed reduction assembly; the three-stage speed reduction assembly transmits received power to the planetary gear assembly, and a first gear ring and a second gear ring on the planetary gear assembly transmit the power to a shell and a left half shaft of the differential mechanism respectively. The beneficial effects of the utility model are mainly reflected in that the arrangement has a torque distribution function, and gives consideration to the energy consumption problem and driving experience in yaw dynamics control; and the energy consumption problem and the driving experience in yaw dynamics control are considered.

The utility model discloses a kind of differential through brake structure carries out differential torque, including differential housing, and left half axle and right half axle;Differential housing is provided with differential torque control component, differential torque control component at least includes shared planet carrier, shared planet carrier is provided with first planetary gear and second planetary gear, shared planet carrier is connected on the second brake of torque transfer mechanism housing;First planetary gear is engaged transmission in first sun gear and gear ring, gear ring is fixedly connected on the differential housing;First sun gear is connected to first brake;Second planetary gear is engaged transmission in second sun gear, second sun gear is fixedly arranged on the left half axle.The utility model has the beneficial effect mainly in: the device is realized differential differential torque function by differential housing and differential torque control component cooperation, need not use separate motor to control, can substantially reduce cost, facilitate reasonable layout.