The Virtual Design Of The Belt Type Bi-directional Loading Device Used In Boxcar

The railway transport Occupies an important position in the transportation industry in our country. It has been Increasing year by year since the1990s. As the important means of transport in the railway transportation, the loading efficiency of covered wagon directly affects the cargo capacity and cost of railway station. At present, the domestic covered wagon loading is mostly still stayed in the human transport and forklift loading stage. The problems of low efficiency, high cost and poor handling environmental issues are highlighted. In recent years,some of the box car loader were designed and manufactured by several companies in Shandong and Jiangsu province. To a certain extent, they had liberated human and improved the efficiency, but the effect was still not enough. They didn’t really reflect mechanical operation efficiency. So the significance of this topic research is to put forward a new loading device for covered wagon loading. Based on the research of the existing loading device, the efficiency of loading and human liberation were further improved to achieve the goal of working together.P70box car is taken as the model of the research object in this paper. The belt type bi-directional loading device of which scalable conveyer was as the core component of covered wos designed. It is used to send goods from outside to both ends of inside of the boxcar directly. The scalable conveyer was mainly designed, which is constituted by gear and rack expansion machine and pulley block structures. It has greatly improved the efficiency of the telescopic frame expansion. Three-dimensional design software Pro/E was used to complete entity modeling and virtual assembly of the parts. Then the static interference was inspected to guarantee the correctness of the location of the parts.The virtual design of loading device was finally finished.The loading device model was simplified and Imported into the dynamics simulation software ADAMS. The mechanism mathematical model of work process of telescopic is established to analyze its dynamic simulation. The simulation curves of displacement, velocity and acceleration of scaling mechanism in the process of work were output to analyze and verify the rationality of the scaling mechanism. The driver was optimized to select the power source which can meet the needs of work.the Workbench software was used to analyze the statics of telescopic mechanism to get the main stress components of the stress strain diagram. Analyzing the strength and stiffness to see whether they can meet the requirement or not. Modal analysis was carried out on the telescopic belt conveyor. Its six order formation figure and displacement deformation figure were achieved to analyze its rationality, and provided the according to the production.In this paper, a new box car loading device which was used to send boxes and bags cargo was designed through the research of the belt type bi-directional loading device. Through the telescopic conveyor bi-directional loading, the efficiency of existing loading device is doubled. And the volume of the scalable conveyer was greatly reduced through the mechanism of the new scale, making them more widely applicable scop.