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5694 results about "Wheel drive" patented technology

Drive arrangement for a motor vehicle

A hybrid drive arrangement for a motor vehicle including an internal combustion engine (1), which is connected or can be connected in a wheel-driving manner, via a first torque transmission path (11, 13), to a driving wheel (15) of the motor vehicle. An electric machine (19), which is operable at least as a motor, is fed from an electrical energy source (7, 29) of the motor vehicle and is connected or can be connected in a wheel-driving manner, via a second torque transmission path (21, 23, 13), to the driving wheel (15). Arranged in the first and/or the second torque transmission path are coupling elements (11, 23) which, in a first operating state, permit the driving of the motor vehicle by the wheel-driving torque of the electric machine (19), operated as a motor, without mechanical torque support from the internal combustion engine (1), and which, in a second operating state, permit the driving of the motor vehicle by the internal combustion engine (1), without mechanical torque support from the electric machine (19). Depending on the driving speed of the motor vehicle, an electronic driving control system (31) activates the first operating state, at least in a first range of driving speeds including standstill of the vehicle, if the driving speed is less than a predetermined speed limit, and activates the second operating state, at least in a second range including the maximum speed of the vehicle, if the driving speed is greater.
Owner:ZF FRIEDRICHSHAFEN AG

Composite transformation mobile robot combining elastic foot and wheel type motion mechanism

ActiveCN103287523AReduced axial length dimensionGuaranteed coaxiality requirementsManipulatorVehiclesTerrainDrive wheel
The invention provides a composite transformation mobile robot combining an elastic foot and a wheel type motion mechanism, which comprises a space machine body frame unit of a foot-wheel composite mobile transformation robot, driving wheel drive units, driven wheel driven units, four modular leg units, a control sensing system unit, a hermetical casing and a power source. The robot used elastic foot replaces the traditional rigid foot to increase the kinetic stability of the robot and reduce the vibratility and impact force of the robot, and is combined with a wheel type moving method, so that the quick mobility and high efficiency of the wheel type movement on a flat ground can be guaranteed, and the excellent maneuverability and strong obstacle crossing function of the foot type moving, creeping and climbing motion under complex terrains such as complex mountain environment and city terrain can be taken into account; as the foot type composite transformation mobile robot adopts modular design, the foot and wheel cannot interfere each other, the maintenance and replacement are convenient, and the motion pattern is flexible and variable; and the athletic ability of the robot is improved in virtue of the mutual transformation, coordination and combination of the foot type motion and the wheel type motion.
Owner:UNIV OF SCI & TECH OF CHINA

Lawn mower having selectively drivable wheels

InactiveUS6874305B2Excellent straight running performanceSteering linkagesLawn-mowersDrive wheelEngineering
A lawn mower having selectively drivable wheels, includes dirigible front drive wheels, a pair of right and left rear drive wheels, a body frame, an engine supported by the body frame, a mower unit vertically movably supported by the body frame forwardly of the rear drive wheels, a change speed device for changing a speed of drive from the engine, a front wheel driving device for transmitting drive from the change speed device to the front wheels, a left rear wheel driving device for transmitting drive from the change speed device to a right axle of the left rear wheel, a right rear wheel driving device for transmitting drive from the change speed device to a left axle of the left rear wheel, and rear wheel clutches associated with the left rear wheel driving device and the right rear wheel driving device, respectively, for selectively connecting and disconnecting drive. The rear wheel clutches are operable by an interlocking mechanism in response to a displacement to the front drive wheels from a straight running posture, to disconnect drive transmission to one of the rear drive wheels moving along an inner track of turning of the vehicle body. The interlocking mechanism has a link mechanism operatively connecting a steering mechanism for steering the front drive wheels to each of the rear wheel clutches, and extending over the mower unit.
Owner:KUBOTA LTD

Motor-driven wheel drive device

The invention provides a motor-driven wheel drive device in which the durability of a wheel bearing is increased, the weight and size thereof are reduced, and the disassembly and reassembly thereof is taken into account. [MEANS FOR SOLVING PROBLEMS] This motor-driven wheel drive device comprises a drive part (4) having an electric motor (M) driving a planetary speed reduction gear (2) installed in the wheel bearing (1) and a rotating member (17). The wheel bearing (1) further comprises a hub wheel (6) on which an inside rolling surface (6a) is formed, an inner ring (7) press-fitted to the hub wheel, an outer member (8) in which double rows of outside rolling surfaces (8a) are formed, and rolling elements (9). The planetary speed reduction gear (2) further comprises a sun gear (3) formed in a rotating member (17), a plurality of planetary gears (12) disposed between the outer member (8) and the sun gear (3), and carrier pins (14) pivotally supporting these planetary gears on a connection shaft (13). The drive part (4) further comprises the electric motor (M) releasably disposed on the outer member (8) and the rotating member (17). The connection shaft (13) is connected to the hub wheel (6) through a serration, and the rotation of the electric motor (M) is transmitted to the hub wheel (6) through the rotating member (17) and the planetary speed reduction gear (2).
Owner:NTN CORP

Integrated electric wheel drive unit for electric automobile

The invention discloses an integrated electric wheel drive unit for an electric automobile, which comprises a disc motor, a motor controller, a battery unit, a whole vehicle electronic control unit ECU, a vehicle bridge and a brake caliper, wherein the brake caliper is fixed on a motor shell and matched with a rotor and brakes the rotor to rotate; the rotor is fixed at one end of a motor rotor shaft, while the other end is fixed on a vehicle wheel hub of a tire through a bearing; a stator is fixed on the motor shell which is fixed with the vehicle bridge; the whole vehicle electronic control unit ECU, the battery unit, the motor controller and the stator are connected with each other in turn through a high voltage wire bale; and the whole vehicle electronic control unit ECU is also in signal connection with the motor controller which is in signal connection with the brake caliper. The invention saves the conventional clutch, the conventional gear box, the conventional main speed reducer, the conventional differential mechanism and other components, simplifies the structure of the whole vehicle, improves the transmission efficiency, and can realize the electronic differential speed control of an electric wheel by control technology.
Owner:SOUTH CHINA UNIV OF TECH

Variable-gap roll shaft fruit and vegetable classifier

The invention discloses a variable-gap roll shaft fruit and vegetable classifier; a driving chain wheel drives a driven chain wheel to rotate by a chain which is evenly distributed with sorting rollers; a plane classification bed is formed by a roll surface of the sorting roller on an upper layer chain, and a plane belt-type conveyor is positioned under the plane classification bed; at the two ends of each sorting roller shaft, a pushing roller wheel is positioned on the sorting roller shaft at the outer side of the chain, and a guide roller wheel matched with a guide rail is fixedly arranged on the sorting roller shaft at the inner side of the chain; the two sides along the longitudinal direction of a stander are respectively provided with a spiral conveying shaft by a bearing seat, and the two spiral conveying shafts are parallel to each other; a motor leads the two spiral conveying shafts to have the consistent rotating shaft and the opposite rotating directions by a transmission device; the screw pitches of the I and the III sections of the spiral conveying shafts are more than that of the II section thereof; the pushing roller wheels are matched with spiral pushing grooves of the spiral conveying shafts; the screw pitch of the II section of each spiral conveying shaft is adjusted, so that the gaps among the sorting rollers running to the II section of the spiral conveying shafts are larger than the diameters of selected fruits; and a feeding groove is arranged above the surface of the I-section sorting roller. The variable-gap roll shaft fruit and vegetable classifier has simple structure, high operation efficiency, stable changing process of the gaps of the sorting rollers, and high classification accuracy rate.
Owner:INST OF AGRI MECHANIZATION XINJIANG AGRI INST +1
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