WHEEL LOADER

摘要

The motor cooling system circulates cooling oil for cooling a motor. A transmission is configured to change a rotation speed ratio of an output shaft with respect to an input shaft by changing a rotation speed of the motor. A transmission case has an output shaft case for housing the output shaft. The output shaft case is positioned forward of the motor and protrudes to a position below the motor. The motor cooling system has a cooling oil tank for storing the cooling oil and a cooling oil pipe which connects a cooling oil tank and the motor. The cooling oil tank is positioned behind the output shaft case and under the motor.

主权项

1. A wheel loader comprising:
an engine; a travel device driven by the engine; and a transmission that transmits driving power from the engine to the travel device; the transmission including
an input shaft;an output shaft;a gear mechanism that includes a planetary gear mechanism and that transmits rotation of the input shaft to the output shaft;a transmission case that houses the input shaft, the gear mechanism, and the output shaft;a motor connected to a rotating element of the planetary gear mechanism and attached to the transmission case; anda motor cooling system for circulating cooling oil for cooling the motor;the transmission being configured so that a rotation speed ratio of the output shaft with respect to the input shaft is changed by changing a rotation speed of the motor;the transmission case having an output shaft case for housing the output shaft;the output shaft case being positioned forward of the motor and protruding to a position below the motor;the motor cooling system having a cooling oil tank for storing the cooling oil and a cooling oil pipe connecting the cooling oil tank and the motor; andthe cooling oil tank being positioned behind the output shaft case and under the motor.