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1. Before installation, check whether the prime mover and the working machine are concentric, and whether there are wrapping paper or bumps on the surfaces of the two shafts.
Check whether there is debris in the inner holes of the two half couplings of the plum coupling, and whether there are bruises on the edges of the inner holes. If so, clean the shaft and half couplings, and treat the bruises with fine files.
2. 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 make the length of the prime mover and the working machine end half coupling less than its shaft elongation 10-30mm.
In order to facilitate the installation, it is better to put the two half couplings in the 120150 incubator or oil tank for preheating, so that the inner hole size increases and it is easy to install.
3. After installation, the shaft head should not protrude from the end surface of the half coupling, it is better to be flush.Detect the distance between the two halves of the coupling: 34 points of readings measured along the two inner sides of the flange of the half coupling are averaged, and the sum of the measured dimensions of the extended section and the two diaphragm sets is controlled by the error. Within the range of 0-04mm.
Alignment: use a dial indicator to detect the runout of the flange end and outer circle of the two halves of the coupling. When the flange outer circle is less than 250mm, the runout value should not be greater than 005mm; when the flange outer circle is greater than 250mm, the runout The value should not be greater than 008.
4. Install the bolts: insert the bolts from the outside of the small hole of the flange, pass through the outside of the large hole of the other flange, put on the buffer sleeve, elastic washer, twist the nut, and tighten the nut with a wrench.If the installation is unsuitable or if it is removed and replaced without damaging the shaft and the half coupling, it is better to rotate freely after installation.
5. Instructions for the operator: Before starting the equipment, check whether the nut of the plum coupling is loose or falling off. If so, tighten the nut with a wrench in time.The load line valve should be opened after starting the equipment with no load for 1 minute; the shutdown sequence is reversed. (Please brush the outside of the coupling with oil once a month).
6. Practice has proved that if the installation, maintenance and operation are carried out according to the instructions and requirements, the number of daily starts of the plum coupling is 15 times, and the service life of the diaphragm is less than 5 years. If the installation, maintenance, Operation, especially if the bolts are installed in the wrong direction to cause the diaphragm to deform or the prime mover and the working machine axis to deviate too much, the diaphragm will be damaged in advance.