The simulation loading platform is composed of a T-groove platform and several load hydraulic cylinders. The simulation loading of the simulation loading platform is mainly realized by the force measuring hydraulic cylinder. The load hydraulic cylinder is composed of a pull pressure sensor and a hydraulic cylinder. The pull pressure sensor is installed on the piston rod of the hydraulic cylinder.
Simulation loading belongs to active loading. During the simulation loading operation, the bucket is constrained by the force exerted on the bucket by the load measuring hydraulic cylinder. In order to simulate the force and change of excavator under various working conditions, the electro-hydraulic servo principle is used to control the hydraulic cylinder to apply load on the loaded object, and the change of load is fed back in real time through the pull pressure sensor.
Simulation loading can be divided into three ways: forward loading, lateral loading and composite loading. Forward loading is to constrain the bucket in the opposite direction of the excavator. Lateral loading is carried out on the side of the bucket. Compound loading is the simultaneous process of forward loading and lateral loading to simulate the actual force situation of excavator in the process of excavation.
