JM type single diaphragm coupling using skills

The JM type single-diaphragm coupling is a relatively delicate coupling transmission part. If we misuse it in use or install it incorrectly, it is more prone to damage. Therefore, it is necessary to make the deviation within the tolerance range of the normal operation of the coupling. The model can be adjusted according to the shaft diameter: the initially selected bearing coupling connection size, that is, the shaft hole diameter d and the shaft hole length L, should meet the requirements of the shaft diameter of the driving and driven ends, otherwise the coupling should be adjusted according to the shaft diameter d Shaft specifications.

It is a common phenomenon that the shaft diameters of the main and driven ends of the JM type single diaphragm coupling are not the same. When the torque and speed are the same, but the shaft diameters of the driving and driven ends are different, the coupling model should be selected according to the large shaft diameter. . In the newly designed transmission system, seven types of shaft holes that meet the requirements of GBT3852 should be selected. It is recommended to use the J1 type shaft hole type to improve versatility and interchangeability. The length of the shaft hole is specified in the i-bearing coupling product standard . JM type single diaphragm coupling consists of at least one diaphragm and two shaft sleeves. The diaphragm is pinned to the bushing and will generally not loosen or cause backlash between the diaphragm and bushing. Some manufacturers provide two diaphragms, and some provide three diaphragms, with one or two rigid elements in the middle, and the two sides are connected to the shaft sleeve. This feature of the diaphragm coupling is a bit like a bellows coupling, in fact, the way the coupling transmits torque is similar.

The diaphragm used in the JM type single-diaphragm coupling is relatively thin, so it is relatively easy to bend during the generation of some relative displacement loads, so it can withstand up to 1.5 degrees of deviation, and at the same time produces a lower in the servo system bearing load. This type of diaphragm coupling is often used in servo systems. The diaphragm has good torque rigidity, but it is slightly inferior to the bellows coupling.