Diaphragm coupling diaphragm

DiaphragmCoupling diaphragmRelying on the elastic deformation of the diaphragm to compensate the relative displacement of the connected two shafts, it is a high-performance flexible coupling with metal elastic elements.No need for lubrication, compact structure, high strength, long service life, no rotation gap, not affected by temperature and oil pollution, suitable for shaft transmission in high temperature, high speed, and corrosive medium working environment, widely used in various mechanical devices Shaft transmission, 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 (helicopters), ships High-speed power transmission systems, after being dynamically balanced, are commonly used in high-speed transmission shaft systems.

The diaphragm coupling diaphragm has high mechanical strength, large carrying capacity, light weight, small structure size, high transmission efficiency and transmission accuracy, good reliability, convenient assembly and disassembly, and has no relative sliding, does not need lubrication, and has a service life. Long, no noise and other characteristics, can be used in high temperature, low temperature, oil, water and corrosive media working environment.Suitable for medium, high speed and large torque shaft transmission.As well as the shaft transmission with little change in load of various mechanical devices, it has strong versatility.

Use and maintenance of diaphragm coupling diaphragm

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 it, repeat this for several shifts to ensure that it 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 each site where personal and equipment accidents may be caused by the operating diaphragm coupling.

Installation instructions for diaphragm coupling diaphragm:

1. Before installation, check whether the two shafts of the prime mover and the working machine are concentric, whether there are wrapping paper and scratches on the surfaces of the two shafts, whether there are debris in the inner holes of the two half couplings of the coupling, and whether there are any edges of the inner holes. If there are bruises, the shaft and half coupling should be cleaned up, and the bruises should be treated with a fine file.Then check whether the inner hole diameter and length of the two half couplings are consistent with the diameter and shaft elongation of the prime mover and working machine.In general selection, it is better to let the length of the prime mover and the working machine end half coupling be less than the shaft extension of 10-30mm. 

2. In order to facilitate the installation, the two half couplings are placed in the 120-150 incubator or oil tank for preheating, so that the inner hole size is enlarged and it is easy to install.After installation, ensure that the shaft head cannot protrude from the end face of the half coupling, and it is better to be flush.Detect the distance between the two halves of the coupling: take the average of the readings of 3 to 4 points measured along the two inner sides of the flange of the half coupling, and the sum of the measured dimensions of the extension and the two diaphragm sets, two The error is controlled within the range of 0-0.4mm.