Kinematics analysis and scale synthesis of 3UPU parallel mechanism

Kinematic Analysis of High Flow Unloading Device

“…Currently, the device is usually pulled by means of rope traction to achieve oscillation, and the height adjustment of the loading is achieved by the telescoping of hydraulic cylinders, so the unloading device has two degrees of freedom. In the past, some scholars have studied the structural form of the unloading device [1], the anti-impact design [2], the unloading flow control [3] and the simulation of the material flow process [4], but the kinematic part of the unloading device has not yet been analysed and studied. In the loading process, the motion of the unloading device determines when the car is ready to be loaded, the shape of the material loaded into the carriage and when it is lifted and waits until the next carriage reaches the loading position to start the next loading process, which requires the height of the carriage to be adjusted according to the height of the different carriages and the speed of the carriage travel, to ensure that the material does not overflow the carriage, does not spill and that the unloading device does not collide with the carriage.…”