JZM diaphragm coupling for heavy machinery

The JZM heavy-duty diaphragm coupling is composed of several groups of diaphragms (stainless steel thin plate) which are interlaced with two halves of the coupling with bolts. Each group of diaphragms is made up of several pieces. The diaphragms are divided into link type and Whole pieces of different shapes.Widely used in shaft transmission of various mechanical devices, such as water pumps (especially high-power and chemical pumps), fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, metallurgical machinery, Aviation (helicopters), naval high-speed power transmission systems, steam turbines, piston-type power mechanical transmission systems, crawler vehicles, and high-speed, high-power mechanical transmission systems of generator sets are commonly used in high-speed transmission shaft systems after dynamic balance .

The initially selected coupling dimensions of the bearing coupling, that is, the shaft hole diameter d and the shaft hole length L, should meet the requirements of the shaft diameters of the driving and driven ends, otherwise the coupling specifications must be adjusted according to the shaft diameter d.

Correctly install the bolts of the JZM diaphragm coupling:

1. Insert the bolt from the outside of the small hole in the flange, and then pass it into the diaphragm hole (pay attention to the direction of the diaphragm, the diaphragm is composed of many single sheets, rivets and rivet washers, and the rivet washers should be in contact with the buffer sleeve , Otherwise it will affect the service life of the rivet set), and then insert the buffer sleeve, elastic washer, and tighten the nut from the outside of the large hole of the flange, so that the bolt does not rotate, because the bolt and the flange The surface of the mating section is a very important mating section for torque transmission, and the integrity of the surface directly affects the performance.

2. The gap between the bolt fitting section and the flange hole fitting section is generally based on the bolt diameter of 0.20mm~0.30mm. This fitting section plays a very important role in transmitting torque. If the gap exceeds the standard, replace it.

3. The diameter gap between the inner hole of the buffer sleeve and the diaphragm rivet and the bolt is 0.5mm ~ 0.7mm, which plays a role in pressing and positioning the diaphragm.

4. If the bolt is installed in the direction of the bolt, it is easy to cause the bolt to deviate, and the diaphragm will be twisted and deformed.

The correct choice of diaphragm coupling:

1. The diaphragm coupling is composed of at least one diaphragm and two shaft sleeves.The diaphragm is fastened to the shaft sleeve with a pin and generally does not loosen or cause backlash between the diaphragm and the shaft sleeve.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.

2. The characteristic of diaphragm coupling is a bit like a bellows coupling. In fact, the way the coupling transmits torque is similar.The diaphragm itself is very thin, so it is easy to bend when the relative displacement load is generated, so it can withstand up to 1.5 degrees of deviation, while generating a lower bearing load in the servo system.

3. Diaphragm couplings are often used in servo systems. Diaphragms have good torque rigidity, but are slightly inferior to bellows couplings.

4. On the other hand, the diaphragm coupling is very delicate, and it can be easily damaged if it is misused during use or not installed correctly.Therefore, the deviation is very large within the tolerance range of the normal operation of the coupling.

5. Adjust the model according to the shaft diameter:

Therefore, pay attention to the direction of the bolts when installing the bolts. Do not install the bolts at random. Otherwise, the diaphragm will be twisted, and long-term operation will damage the surface of the diaphragm and the bolt mating section and the small holes of the half shaft joint.

Hangzhou JZM diaphragm coupling for heavy machinery　Hangzhou JZM diaphragm coupling for heavy machinery