The structural design of the shafts

shafts

The structural design of the shaft is an important step in determining the reasonable shape of the shaft and the overall structural dimensions of the shaft. It is mounted on the shafts by the type, size and position of the part, the fixed way of the part, the nature of the load, the direction, the size and the distribution, the type and size of the bearing, the roughness of the shafts, the manufacturing and assembly process, the installation and transportation, Of the deformation and other factors. The designer can be designed according to the specific requirements of the shaft, if necessary, can do a few programs to compare, in order to select the best design, the following is the general axis structure design principles: 1, to save materials, reduce weight, try to use equal strength Size or large cross-sectional coefficient of the cross-sectional shape; 2, easy to shaft parts precise positioning, solid, assembly, disassembly and adjustment; 3, using a variety of stress reduction and improve the strength of the structural measures;4, easy to manufacture and ensure the accuracy of manufacturing.

Torsional rigidity of the shafts

The torsional stiffness check of the shafts is calculated when the amount of torsional deformation of the shafts is measured, which is measured by the angle of the torsion per meter. The torsional deformation of the shaft will affect the performance and working precision of the machine. If the twist angle of the camshaft of the internal combustion engine is too large, it will affect the correct opening and closing time of the valve. The twist angle of the drive shafts of the gantry crane will affect the synchronization of the drive wheel. There is a need for greater torsional stiffness for shafts where there is a risk of torsional vibration and shafts in the operating system.