Carries on structure design on important parts-turning platform of EBH-120 type roadheader,and chooses smaller radial rolling bearings and large flat surface bearings to combine together.

Carries on force analysis on the platform of the EBZ-160 type roadheader,then the analysis software is used as the stress analysis on turning platform,gets the largest stress and finds the dangerous sections,at last,provides the certain theory basis for turning platform design and the optimization.

Using 3D software of Solidworks to built solid models and using finite element method to predigest of turning platform which is one of important part roadheader EBZ300.

According to the loads situation of QY16 autocrane s slewing table in work,a load mathematics model was built.

The structure of boom roadheader s slewing table was analysed by FEM,the detail stress distribution was gotten under the most dangerous circumstance,this indicate the characteristic of stress of slewing table.

ANSYS-based mechanical property analysis on rotary table of EBZ-160 Excavator;

The mechanical analysis of rotary table parts was completed.

The defect in steel ladle revolving platform connecting rod slab was analyzed by means of chemical composition analysis,fracture analysis,metallographic experiment and mechanical performance test.

The paper presents the mechanics analysis on the revolving platform of the QY50 crane.

Theory calculation and analysis of impact coefficient of ladle turret;

Main Structure Optimization of Ladle Turret with Big Loading Ability of Continuous Casting Machine;