Error of axial disassembly of diaphragm coupling

Diaphragm coupling core components, according to the shape of the diaphragm can be distributed beam waist type, ring type, joint connecting rod type, spokes, multi-ground mode. According to the working condition of the coupling, we can summarize the force of the coupling into the following four kinds, and give the planning method of different kinds of force, with the eight-hole beam waist diaphragm as the research on the image.

(1) Bending stress caused by angular disassembly error. It can be solved according to the simplification shown below. Because of the disassembly theory error at the axis Angle, the diaphragm along the axis position has periodic bending deformation, and this is the main reason to determine the diaphragm fatigue of the coupling. The displacement, radial displacement and axial displacement activity of the local bolt hole one week in the axis position caused by the angular precisely to reason. In general, the angular displacement of the diaphragm of the coupling is very small, so the diaphragm deformation belongs to the small deformation, which can be analyzed by using the thin plate small deflection bending theory.

(2) Due to the error of axial disassembly, the diaphragm is bent along the axis position. The displacement loading is axial position, radial displacement and axial displacement activity at the local bolt hole. A hole in the middle of the two ends is used to impose a cage, and a hole in the middle is used to bear the load. It is thus treated as a statically determinate simply supported mechanism.

(3) centrifugal stress caused by inertia when rotating at high speed. Assumed bolt and

Coupling diaphragm

The material is the same, the respective mass can be planned, the centrifugal force can be calculated according to the position and screw Angle, and the action on the total center of mass. The centrifugal inertia force of high speed equipment is very important in the customized stress plan. The centrifugal inertia force can be loaded according to the radial force F=(2N /60) 2RP, and the position is radial outward, the radial displacement, circumferential displacement and axial displacement of the bolt hole in the active place, and there is no other load around.

(4) torque produces film stress. Assume that the torque transferred is T(Nm) and the total number of plates is m. For 8-hole bolts, it is known from the simplified conditions that the torque T1 of the single diaphragm is T/m and the force on each main bolt is F=T/4mR.