Coupling To Find The Center Of The Principle
Couplings are part of a mechanical universal component that is used to couple two shafts (master and driven shafts) in different mechanisms to coaxially rotate the mechanical parts of the torque. In the high-speed heavy-duty power transmission, some couplings also have the role of cushioning, Voss Push in Couplings damping and improving the dynamic performance of the shaft. The coupling consists of two halves, which are connected to the drive shaft and the slave shaft, respectively. General power machine mostly by means of coupling and working machine connected to the mechanical products is the most commonly used shaft transmission parts. In the late 20th century, domestic and foreign coupling products developed rapidly, in the product design from the variety of different performance of various couplings to meet the requirements of the machine to meet the coupling, for most designers, Is always a troubled problem. Common coupling with diaphragm coupling drum-type gear coupling, universal coupling, safety coupling, Voss Push in Couplings flexible coupling and serpentine spring coupling.
The center of the coupling is an important part of the maintenance work of the rotating equipment. If the method is not correct or the result is not accurate, it will cause the vibration value of the rotating equipment to exceed the standard, which will seriously threaten the normal operation of the rotating equipment. High speed equipment, Voss Push in Couplings the coupling of the data required to be extremely strict. Here on the rotation of the equipment coupling to make a detailed description of the problem.
Coupling to find the center of the principle
So that the two pairs of wheel center coincidence, that is, so that the two rounds of the outer circle coincide;
So that the two pairs of wheels of the joint surface (end) parallel (two center line parallel).
Coupling two pairs of wheels if the relative position does not meet the above two conditions, there are two states: two pairs of wheels on the mouth, two pairs of wheels under the mouth Therefore, the coupling to find when there are four basic state:
A) two pairs of wheel end parallel, Voss Push in Couplings high and low equal. This situation does not need to increase or decrease the thickness of the gasket, simply make the motor plane to meet the coupling spacing, left and right radial, axial correction requirements.
(B) The two coupling ends are parallel and uneven. In this case only need to increase the thickness of the four feet of the same gasket, and then make the motor can be moved to the plane.
(C) the two coupling ends are not parallel, the upper opening and uneven, this situation should be calculated by opening the mouth to eliminate the thickness of the gap required, and then according to the height difference △ h increase or minus the gasket. Before and after the foot pad and the rear foot pad thickness is greater than the front foot, the upper and lower radial adjustment of the axial, Voss Push in Couplings and then make the motor for horizontal movement.
(D) two coupling end face is not parallel, the next mouth, rugged. This situation needs to use the mouth under the mouth, calculate the thickness of the gap required to eliminate the mouth, and then according to the height difference △ h and then increase or decrease the gasket.
As the next opening need to increase the gasket in the front of the motor or remove the foot pad, so the motor will rise. Two shafts close to the ground and the next opening, the elimination of the mouth after the motor are high, often the formation of the motor after the foot without gasket removable, Voss Push in Couplings so when the motor is in place when the first look do not leave the next mouth.
Coupling correction procedure
1) should be measured before the two half of the coupling diameter, axial runout;
2) Check the motor four feet and platen contact whether there is a gap, if the gap must be handled;
3) the motor in place by the coupling state, in the four foot pad on the gasket;
4) Horizontal movement of the motor will be left and right diameter, the basic deviation of the basic elimination;
5) tighten the motor anchor bolts;
6) Install the coupling tool;
7) measure the coupling state deviation;
8) calculate the thickness of the foot pad before and after the increase or decrease;
9) increase the gasket and tighten the foot screw;
One does not succeed again 4) -9) until qualified