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Operational Principles Of The Wheel Loader Gearbox And The Torque Converter

The gearbox of the wheel loader genereally is shafted through power shift, that is to say, basically through the hydraulic valve, the control of the separation and combination of the internal clutch of the gearbox can help to realize the steering and shifting. The torque converter transfers the flywheel speed and torque flexibility of diesel engine to the gearbox, which has the function of increasing the torque, so it is called the torque converter. Gearboxes and torque converters can be separated, they can also be integrated. These two can selected according to overall layout.

1. The operational principle of the torque converter is the rotating of the torque converter pump impeller, which is connected directly with the engine. The transmission oil in the stirred torque converter moves in accordance with certain rules. In the middle of the liquid torque converter, there is a fixed guide wheel. When the liquid passes through the guide wheel, it will go through various complex changes, which consist of impacting on the transmission turbine and driving the turbine to rotate. All of this can help to realize the improvement of torque. When the torque is increased, the output speed of the turbine will decrease.

2. The pump impeller of the wheel loader's hydrodynamic torque converter of the is rigid connected with the engine's flywheel, that is to say, the input speed of the hydrodynamic torque converter is always consistent with the engine's output speed. The wheel loader's hydrodynamic torque converter has a variable speed pump. The main function of the pump is to suck oil from the oil sump tank of the gearbox, supply the transmission oil in the hydrodynamic torque converter, and lubricate and cool each gear and clutch disc in the gearbox.
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