BATTERY FORKLIFT

摘要

A battery forklift includes a battery and a motor that includes a rotation shaft and is driven using the battery as a power source. A reduction device reduces the speed of rotation of the rotation shaft and transmits the rotation to an axle. A case accommodates the reduction device. A drive wheel is driven by rotation of the axle. The reduction device includes a helical gear rotated integrally with the rotation shaft and a drive shaft formed integrally with the helical gear and extended in a vertical direction. The reduction device further includes an upper bearing located above the helical gear to support the drive shaft rotatably relative to the case and a lower bearing located below the helical gear to support the drive shaft rotatably relative to the case. The case includes a communication portion that communicates a lower void located below the upper bearing and an upper void located above the upper bearing.

主权项

1. A battery forklift comprising:
a battery; a motor that includes a rotation shaft and is driven using the battery as a power source; a reduction device that reduces the speed of rotation of the rotation shaft and transmits the rotation to an axle; a case that accommodates the reduction device; and a drive wheel that is driven by rotation of the axle, wherein the reduction device includes
a helical gear rotated integrally with the rotation shaft,a drive shaft formed integrally with the helical gear and extended in a vertical direction,an upper bearing located above the helical gear to support the drive shaft rotatably relative to the case, anda lower bearing located below the helical gear to support the drive shaft rotatably relative to the case, and the case includes a communication portion that communicates a lower void located below the upper bearing and an upper void located above the upper bearing.