JSD type serpentine spring couplingIt is composed of outer cover, spherical roller, half coupling, inner cover, outer cover, etc.The semi-coupling is connected to the outer sleeve by spherical rollers distributed along the circumference. The spherical rollers are in the hole between the half-coupling and the outer sleeve to transmit torque and bear radial force, and also act as a self-aligning bearing. , It can compensate the angular displacement between the output shaft of the reducer and the axis of the drum, and its mechanism is similar to the elastic pin gear coupling.
When in use, the half coupling is sleeved on the output shaft of the reducer, and the outer sleeve is connected with the wire rope drum by bolts, and the torque and radial load are transmitted between the half coupling and the outer sleeve through spherical rollers.The spherical roller coupling has the performance of compensating the relative displacement of the two shafts, compact structure, light weight, high performance, convenient installation, and easy to arrange the mechanism on the crane trolley.The two shafts connected by the coupling produce relative displacement due to many factors such as manufacturing error, assembly error, installation error, shaft load and deformation, base deformation, bearing wear, temperature change, and relative movement between components.Under normal circumstances, the relative displacement of the two shafts is unavoidable, but the direction of the equilibrium displacement generated by the shafting transmission under different working conditions, that is, the axial, radial angular direction and the magnitude of the displacement are different.Only the flexible coupling has the performance of compensating the relative displacement of the two shafts. Therefore, a large number of flexible couplings are selected in practical applications.