Correct installation skill of plum coupling

Release time：2019-02-21

The correct meihua coupling installation tips: the use of meihua coupling is more and more widely, but many users on the installation of meihua coupling some details are not very clear, here for you to briefly introduce:

1. Before installation, check whether the two shafts of the prime motor and the working machine are concentric, whether there is wrapping paper on the surface of the two shafts and there is damage, whether there is sundry in the inner hole of the two half couplings of the plum coupling, and whether there is damage in the edge of the inner hole. If there is, clean the shaft and half couplings, and deal with the damage with fine file. Then check whether the diameter and length of the inner hole of the two semi-couplings are consistent with the diameter and shaft extension length of the prime mover and the working machine. In general, the prime mover and working machine end half coupling length is less than its shaft extension length of 10 -- 30mm is good.

2. In order to facilitate installation, put the two half-couplings in the incubator or oil tank of 120--150 for preheating, so that the inner hole size can be easily mounted. After installation, ensure that the shaft head does not protrude out of the end face of the half coupling. Detection of the distance between the two half-couplings: take an average value of 3-4 points measured along the two inner sides of the flange of the half-couplings, and sum of the measured sizes of the extended section and the two diaphragm groups. The error between the two is controlled within the range of 0-0.4mm.

3. Alignment: use the dial indicator to detect the end face and outer circle run-out of the flange plate of the two halves of the coupling. When the outer circle of the flange plate is less than 250mm, the run-out value shall not be greater than 0.05mm; When the flange outer circle is greater than 250mm, the runout value should not be greater than 0.08.

4. Installation bolts: insert the bolts from the outside of the hole of the flange, and insert the buffer sleeve, elastic washer and nut from the outside of the hole of another flange, and tighten the nut with a wrench. If the installation is not suitable or removed, and do not damage the shaft and the half, after the installation is completed, it is better to turn freely.

5. Operators' notice: before starting the equipment, please check whether the nut of the plum coupling is loose or falls off. If so, please tighten the nut with a wrench in time.