Abstract:
Abstract: A wire rope brake device was design to solve the problem of slipping accidents by wire rope loosening or fracture when the mountain orchard traction double-track transporter was working. Based on analyzing the principle of the structure of the wire rope brake device and the whole structure of the vehicle, the structure parameters of the brake lever and the walking mechanism were determined. After analyzing the kinematics principal of the braking process, a model was established by the software of SolidWorks. The virtual prototyping of brake device and track beam based on the simplified model of brake device was thrown into the software of ADAMS/View, in order to determine the kinetic changes of braking process. Using successful brake rate as the test index, the braking bench test and high speed photography collision test were carried out. The calculation results showed that the brake lever parameters were majority determined by the track gradient, the distance of upper and lower connecting rod and the height of connecting rod to the track beam. Dynamics simulation and bench test results showed that, the success rate of wire rope braking device was 100%. With the increase of loading quality, the obvious rebound number of the collision was gradually reduced after the brake lever hit the track cross beam. Collision stress between the brake level and the track cross beam and the distance of the rebounding were decreased gradually with the increasing of rebounding numbers. The collision time, frequency and vibration amplitude of vibration rebound of the brake lever were decreased with the increasing of load. The most violent collision was happened in 0 load of the vehicle. In this condition, the largest collision rebound number was 4 times, the whole braking process took up 3.264 s, the maximum rebound distance was 384 mm. Although the simulation data and experimental data had some errors, the overall trend was consistent, so the simulation process was right. This study can provide theoretical basis for design the safety braking device of slope orchard track vehicle and the subsequent optimization.