Parallel membrane disc coupling structure

Abstract

The invention relates to a parallel membrane disc coupling structure, and belongs to the technical field of special membrane disc couplings. The parallel membrane disc coupling structure comprises a middle shaft and a membrane disc set, flanges are arranged at the two ends of the middle shaft correspondingly, the flanges are connected with the membrane disc set, and the membrane disc set is formedby connecting a plurality of membrane discs in parallel. The parallel membrane disc coupling structure is capable of transmitting ultra-large torque, the axial rigidity and the bending rigidity of the membrane disc are effectively reduced, the single-piece membrane disc can still be safely used for a period of time, the parallel membrane disc coupling structure has greater axial and angular compensation capability, greatly improves the safety degree, does not need an extra damage safety structure, and still has the strength characteristics of a common membrane disc.

Description

technical field [0001] The invention relates to the technical field of special diaphragm couplings, in particular to a parallel diaphragm coupling structure. Background technique [0002] The shafting of large ships and large generator sets has the following characteristics: ① High power, relatively low speed, that is, the transmitted torque is particularly large, and the torque even reaches 10 5 ~10 6 N m level; ②This type of equipment is huge in size, the load on the bearing on the shafting is huge, and the running accuracy of the shafting itself is relatively low. If the angular error and axial error cannot be effectively absorbed, the reaction force caused by it will be applied to the bearing On the contrary, the life of the bearing will be greatly shortened, so the shafting of this type of equipment needs a coupling with a larger angular compensation and axial compensation to absorb the error; ③It is difficult to repair the equipment, and even once it is installed, it ...

AI Technical Summary

Problems solved by technology

[0004] (1) The universal joint coupling can effectively absorb the angular error, but it cannot absorb the axial error, the running accuracy is low, and the noise is relatively large during use. At the same time, the structure of the universal joint coupling itself also determines its weight larger;

[0005] ⑵Rubber tire couplings are currently used on ships. Although they can better absorb axial and angular errors, the rubber will deteriorate over time under the combined action of fatigue load and marine environment. In addition, Rubber tire coupling is too heavy;

[0006] (3) There are bolt holes in the fatigue load area of ​​the laminated coupling, and stress concentration inevitably occurs in the orifice area. The angular compensation and axial compensation of the laminated coupling are completed by the part between the bolt holes, and the compensation ability is poor , and the weight of the lamination coupling is much larger than that of the diaphragm coupling of the same specification, and the lamination cannot have the mechanical characteristics of equal strength;

[0007] ⑷Multi-diaphragm couplings are generally a series structure of diaphragms, with superior axial and angular compensation capabilities, but the process is complex, and are generally used in high-speed and light-load situations, and once one of the diaphragms fails, the entire coupling will fail broke (broken in two);

Images