Long Telescopic Cardan Shaft
The long telescopic cardan shaft is a key component in industrial transmission systems, which combines axial displacement compensation and large angle deflection through special design. Long telescopic universal shafts have shown particularly outstanding performance in heavy load fields such as metallurgy, mining, and shipbuilding, and their technical characteristics far exceed ordinary couplings.
The long telescopic universal shaft adopts a modular design, mainly composed of the following functional units:
Cross shaft assembly: As the core of power transmission, it includes quenched cross shaft and needle roller bearing components, which can withstand radial and axial composite loads. High quality products adopt a split bearing seat design, such as the SWP-E universal shaft equipped with a quick replacement structure, which does not require overall disassembly for maintenance.
Telescopic adjustment mechanism: using precision spline pairs (internal spline shaft and external spline sleeve) or sliding sleeve structure, the axial compensation of SWC-CH universal shaft can reach more than 230mm, effectively absorbing equipment thermal deformation and installation errors.
Connection flange: Standard flanges or welded fork heads designed according to standards, providing multiple installation interface options.
The working principle of the long telescopic universal joint coupling is based on the theory of spatial linkage mechanism: when the driving shaft rotates, the power is transmitted to the driven shaft through the hinge action of the cross shaft, and the sliding compensation of the spline pair compensates for the axial displacement. When used in dual mode, complete constant speed transmission can be achieved by adjusting the phase angle.
