Stress analysis in hinge joint region of operation equipment of earth-machinery;

The desing of hinge joint in drlling machine must meet needing that the machine can be adjusted vertically and should be high carrying capacity , the paper bring forward a kind of new configuration applying the finite element analysis software analysis and optimizing design have been done.

A new type of articulated joint with a radial spherical plain bearing is adopted in a television tower.

Motion and force analysis on the three pin-connected joints of luffing mechanism of Watercourse Detecting Vehicle are discussed in this paper.

On the basis of setting up the more intergrative mathematical and geometry model and reasonably selecting the boundary condition, Optimization of desirable hinge point for direct-lift hydraulic construction of XHC3041 mobile was deduced,calculated by CAD,its reasonablity and economy was validated by the experiment.