Fixed coupling.It is mainly used in places where two shafts require strict alignment and no relative displacement during work. The structure is generally simple, easy to manufacture, and the instantaneous speed of the two shafts is the same, mainly including flange couplings, sleeve couplings, and clamps Shell couplings, etc.
The working speed of the coupling and the centrifugal force caused by it.For the drive shaft, a coupling with good balance accuracy, such as a diaphragm coupling, should be used, rather than a slider coupling with eccentricity.
The elastic coupling mainly has the following two basic series: spiral groove type and parallel groove type.Most of the flexible couplings are made of aluminum alloy, and some manufacturers also provide flexible couplings made of stainless steel.
The diaphragm coupling is mainly made of cast special steel.There are many kinds of alloy cast steels refined to meet special needs, usually containing one or more high amount of alloying elements to obtain certain special properties.
Diaphragm elastic couplings are used in a variety of different host products, and the surrounding working environment is more complicated, such as temperature, humidity, water, steam, sand, alkali, salt water, radiation and other conditions.
In the actual working process of the diaphragm coupling, a major feature is its nature, so when they are working, especially during the entire rotation, there is no gap at all.
Diaphragm couplings were used in developed industrial applications in the 20s and 60s.After the reform and opening up, with the introduction of large-scale complete sets of industrial equipment, diaphragm couplings have gradually become known to Chinese people.
Pump couplings are common couplings. There are three types: claw-type elastic coupling, elastic pin coupling and diaphragm coupling.