Coupling problem
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This post was finally published by Chuu Su Shi_FZXA edited on 2019-3-5 15:34 Dear Haiyou: I would like to ask everyone why reciprocating compressors generally choose rigid couplings instead of flexible couplings? As shown in the picture, API618 requires the use of flexible couplings, but this is not the case in reality. Can anyone clarify the doubts? Thank you.
Dear sea friends, can anyone help me?
Personally, I believe that the reciprocating vibration of the compressor can be transmitted to other equipment through rigid couplings, so the standard stipulates the use of flexible couplings, but in practice this is often not considered.
What are the other devices?
The weight of the flywheel needs to be borne partly by the front bearing of the motor.
Flexible couplings are generally used when two working conditions are synchronized, one is that the steering speed is consistent, and the other is that the output torque is consistent. Reciprocating is not used because the output torque fluctuates, which can easily damage the coupling.