Diaphragm coupling installation and use

1. Before installation, first check whether the two shafts of the prime mover and the working machine are concentric, whether there is wrapping paper and bumps 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 is any bruise, the shaft and half coupling should be cleaned up, and the bruise should be treated with a fine file. Then check whether the diameter and length of the inner hole of the two half couplings are consistent with the diameter and length of the shaft extension of the prime mover and the working machine. In general selection, it is better to let the length of the half coupling at the end of the prime mover and the working machine be less than the length of its shaft extension by 10-30mm. 2. In order to facilitate installation, it is best to preheat the two half couplings in a 120--150 incubator or oil tank, so that the size of the inner hole 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, preferably flush. Detect the distance between the two halves of the coupling: measure the readings of 3--4 points along the inner sides of the flanges of the half coupling and take the average value, and the sum of the measured dimensions of the extended section and the two diaphragm groups, the two The error is controlled within the range of 0-0.4mm. 3. Alignment: use a dial indicator to detect the runout of the flange face and outer circle of the two halves of the coupling. When the outer circle of the flange is less than 250mm, the runout value should not be greater than 0.05mm; when the outer circle of the flange 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 small hole of the flange, and pass through the outside of the large hole of the other flange. The wrench tightens the nut. If it is not suitable for installation or removal and replacement without damaging the shaft and half coupling, please use the tools as shown in Figure 3 to Figure 7 and install it. After installation, it is better to rotate freely. 5. Instructions for the operator: Before starting the equipment, check whether the nut of the coupling is loose or fall off. If necessary, tighten the nut with a wrench in time. The equipment should be started with no load for 1 minute and then the valve of the load line should be opened; the shutdown sequence is reversed. (Please paint 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 daily starting times of the diaphragm coupling is 1--5 times, and the diaphragm coupling The service life of the machine is at least 5 years. If the installation, maintenance and operation are not carried out according to the requirements of the manual, especially if the bolt is installed in the wrong direction, the diaphragm is deformed or the axis of the prime mover and the working machine is too large, which will cause the diaphragm to advance. damage.