Installation and operation requirements for quincunx couplings

Plum coupling is a very common application of the coupling, also called claw coupling, is composed of two metal claw plate and an elastic body. The two metal jaw discs are generally 45 steel, but aluminum alloy can be used for load sensitive applications. Before installation, the prime mover and the working machine should be checked first whether the two shafts are concentric, and whether there are wrapping paper and bruising on the surface of the two shafts. Whether there is debris in the inner hole of the two half couplings of the plum coupling, whether there is a bump in the edge of the inner hole, if there is, the shaft and the half coupling should be cleaned up, and the bump is handled with a fine file. Our company specializes in the production of diaphragm coupling

Then check whether the diameter and length of the inner hole of the two semi-couplings are consistent with the diameter of the prime mover, the working machine and the length of the shaft. General selection, let the prime mover and working machine end half coupling length is less than its shaft extension length of 10-30mm as well. In order to facilitate installation, it is necessary to put the two semi-couplings in the 120150 insulation box or oil tank for preheating, so that the size of the inner hole increases and it is easy to install. After installation, ensure that the shaft head can not protrude the end face of the half coupling, and it is better to be flush. Detection of the distance between the two halves of the coupling: along the two sides of the flange of the half coupling measured 34 points of reading average, and the lengthening section and the sum of the measured size of the two diaphragm groups, the error of the two is controlled within the range of 0-04mm.

Alignment: use dial gauge to detect the end face of the two half coupling flange and the runout of the outer circle, when the outer circle of the flange is less than 250mm, the runout value should not be greater than 005mm; When the outer circle of the flange is greater than 250mm, the runout value should not be greater than 008.

Bolt installation: the bolt from the flannel hole outside into, from the other side of the flannel hole through the buffer sleeve, elastic washer, twist the nut, with a wrench to tighten the nut. If the installation is not comfortable or removed and replaced, and does not damage the shaft and half, after the installation is completed, it is better to turn freely without other strength.

Notice to operators: 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 1 minute of no-load startup; Stop in reverse order. (Please brush the outside of the coupling with oil once a month).

Practice has proved, such as and requirements according to the instructions for installation, maintenance, operation, plum coupling startup times in 15 times of day, the service life of the diaphragm is more than 5 years, if not in accordance with the specification requirements for installation, maintenance, operation, especially in the wrong direction of the bolt deformation of the diaphragm or prime mover and work machine two shaft axis offset metropolitan membrane damage in advance.