Introduction and maintenance method of diaphragm coupling

Diaphragm couplingIt is composed of several groups of diaphragms (stainless steel thin plate) which are connected with two halves of the coupling in a staggered manner with bolts. Each group of diaphragms is composed of several stacked ones. The diaphragms are divided into connecting rod type and whole piece type of different shapes.

The diaphragm coupling relies on the elastic deformation of the diaphragm to compensate for the relative displacement of the two shafts connected. It is a high-performance flexible coupling with metal elastic elements. It does not require lubrication, has a compact structure, high strength and long service life. No rotation gap, not affected by temperature and oil pollution, with acid resistance, alkali resistance, and corrosion resistance. It is suitable for shafting transmission in high temperature, high speed, and corrosive medium working conditions. It is widely used for shafting transmission of various mechanical devices., Such as water pumps (especially high-power, chemical pumps), fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, metallurgical machinery, aviation ( helicopter), high-speed power transmission of ships The system, after being dynamically balanced, is commonly used in high-speed transmission shafts.

Use and maintenance

　　1. Before installation, clean the end faces of the two shafts and check the fit of the key grooves on the end faces;

       2. After the diaphragm coupling is installed, all screws must be checked for normal operation in one shift. If they are found to be loose, they must be tightened. Repeat this for several shifts to ensure that they will not be loosened;

　　3. In order to prevent the fretting of the diaphragm during high-speed operation, causing microcracks and damage to the bolt holes of the diaphragm, a solid lubricant such as molybdenum disulfide can be applied between the diaphragms or the surface of the diaphragm can be coated with anti-friction Layer processing; high-speed diaphragm coupling

　　4. Long-term overload use and operation accidents should be avoided;

　　5. During work and operation, check whether the diaphragm coupling is abnormal, and repair it if any abnormality occurs;
　    6. Appropriate protective measures must be taken at various sites where personal and equipment accidents may be caused by the operating diaphragm coupling.