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IV. Structure and working principle of forklift
4.1 Drive system (Fig.4-1)
The travel of forklift with double motors on the triple-pivoted front wheels is powered by the battery. Two
motors respectively drive two set of transmission devices which are driven by the secondary planetary gear. The
motor drives the wheels through the transmission device and moves the vehicle ahead The moving direction of
vehicle is where the vehicle is changed to drive toward by the change in the rotation direction of drive motor, so
that the vehicle achieves the forward or backward motion. Two wheels drive the forklift when making the turns,
two motors respectively controlled by two controllers, rotate the wheels at different speed as required by
cornering to achieve the purpose of turning around.
Fig.4-1 Gearbox/drive axle
4.1.1 Drive axle
The axle housing is the mono-block cast structure. The drive axle and the gearbox are designed in integrated
structure and available with one brake system. The power is driven by the secondary planetary gear and the
front wheel finally driven by the wheel hub. The tires are fitted on the wheel hub through the wheel hub with
the stud and nut.
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General