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Use and maintenance of diaphragm coupling

作者: Published: 2020-01-18

The diaphragm coupling relies on the elastic deformation of the diaphragm to compensate for the relative displacement of the connected two shafts. It is a high-performance flexible coupling with metal elastic elements. Let’s take a brief look at the diaphragm coupling. 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, run a shift normally, check all the screws, if found to be loose, tighten them, and 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, solid lubricants such as molybdenum disulfide can be applied between the diaphragms or the surface of the diaphragm can be coated with anti-friction Layer processing;

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

  5. During work and operation, check whether the diaphragm coupling is abnormal. If any abnormality occurs, perform maintenance;

  6. Appropriate protective measures shall be taken at various sites where personal and equipment accidents may be caused by the operating diaphragm coupling.


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