Basic Structure Of Wheel Loader

A loader generally consists of a frame, a power transmission system, a traveling device, a working device, a steering and braking device, a hydraulic system and a control system. The power of the engine 1 is transmitted to the gearbox 14 through the torque converter 2, and then the gearbox transmits the power to the front and rear axles 10 through the transmission shafts 13 and 16 respectively to drive the wheels to rotate. The power of the internal combustion engine also drives the hydraulic pump 3 through the transfer case. The working device consists of a boom 6, a rocker arm 7, a connecting rod 8, a bucket 9, a boom hydraulic cylinder 12 and a rocker hydraulic cylinder 5. One end of the boom is hinged to the frame, and the other end is equipped with a bucket. The lifting and lowering of the boom is driven by the boom hydraulic cylinder, and the turning of the bucket is achieved by the bucket hydraulic cylinder through the rocker arm and the connecting rod. The frame 11 consists of two parts, front and rear, connected by a hinge pin 4 in the middle. The front and rear frames can be relatively rotated around the hinge pin by the steering hydraulic cylinder to achieve steering.