This work is the first part of a series of studies of the hinge joint of the bearing system of a front loader with a lifting capacity of 3 tons. For comparison, the concept of building a frame of Western manufacturers with approximately the same load capacity was chosen and a 3D model of the new frame was created in four to three variants with different sizes of the connecting hinge. The situation when a forklift encounters an insurmountable obstacle while picking up material in a bucket is considered. The loads at the upper and lower joints of the half-frames and the load of the entire frame were analyzed. The calculations were performed in dynamics using the Ansys software package for engineering analysis and numerical modeling using the Motion calculation module. The same conditions (boom position, time and speed of movement) were taken as the initial data for all prototypes of the new bearing system. Computer modeling allows us to simulate various scenarios of the loader's load-bearing system behavior during the work process in a short time. In this way, we get results that can be used to identify design weaknesses and make changes at the design stage, and we save material, time, and money for the production of the first samples of new equipment. This method of computer simulation of machine operating processes allows a complete assessment of the behavior of the supporting system and other elements of the machine and draw conclusions about design flaws in a short time, without manufacturing a metal product and conducting full-scale tests. In addition, it is necessary to obtain a general understanding of the loads in various situations, for example, when the center of the bucket comes into contact with an obstacle, when the angle of the bucket is changed, when moving a full bucket to a dump point, when driving the loader on an uneven surface, when driving on a slope, and others work processes. Further analysis should be carried out to obtain an overall picture of the loads in various situations, such as when moving the forklift to the unloading point, when moving the forklift on uneven ground, when driving on a slope and during other work processes. After obtaining the overall picture, you can begin to design a supporting system with optimal parameters.

loading, CAD, CAE, Solidworks, Ansys, bearing system, dynamics, hinged frame, strength

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