What is the cause of the vibration of the hydraulic motor during operation? Travel Models,Traffic Demand Modeling,Transport Demand Model,Four Step Transportation Model Nanjing Great Century Art Model Co., Ltd. , , https://www.dsjysmx.com
What is the cause of the vibration of the hydraulic motor during operation? Dalan Motor tells you that there are three main reasons for the vibration of the hydraulic motor:
1, the rotating part is unbalanced
1 The unbalance of the rotating part is mainly caused by the imbalance of the rotor, the coupler, the coupling and the transmission wheel (brake wheel).
2 Find the rotor balance first. If there are large drive wheels, brake wheels, couplers, and couplings, separate the balance from the rotor.
3 The part of the rotating part is mechanically loose. For example, the iron core bracket is loose, the oblique key and the pin are loose, and the rotor is not tied tightly, which will cause the rotating part to be unbalanced.
2, mechanical failure
1 The linkage part of the shaft system is misaligned, the center line does not coincide, and the centering is not correct. The cause of this failure is mainly caused by poor alignment and improper installation during the installation process.
2 Some of the linkage center lines are coincident in the cold state, but after running for a period of time, due to the deformation of the rotor fulcrum, foundation, etc., the center line is destroyed again, thus generating vibration.
3 Gears and couplings associated with the motor are faulty. This kind of failure mainly manifests as poor gear occlusion, serious tooth wear, poor lubrication of the wheel, skewing and misalignment of the coupling, tooth profile of the gear coupling, incorrect tooth pitch, excessive clearance or serious wear, which will cause certain vibration.
4 The structure of the motor itself is defective and installed. This kind of failure mainly manifests as the ellipse of the journal, the bending of the shaft, the gap between the shaft and the bearing bush is too large or too small, and the rigidity of the bearing seat, the foundation plate, a part of the foundation and even the entire motor installation foundation is insufficient, and the motor and the base plate are fixed. Not secure, the foot bolts are loose, and the bearing housing and the base plate are loose.
Excessive or too small clearance between the 5 shaft and the bearing bush can not only cause vibration but also cause abnormal lubrication and temperature of the bearing bush.
6 The motor drags the load to conduct vibration. For example, the turbine vibration of a steam turbine generator, the fan driven by the motor, and the vibration of the water pump cause vibration of the motor.
3. Electromagnetic reasons
AC motor stator wiring error, winding-type asynchronous motor rotor winding short circuit, synchronous motor excitation winding turn-to-turn short circuit, synchronous motor excitation coil connection error, cage asynchronous motor rotor broken strip, rotor core deformation caused by stator and rotor air gap unevenness This causes the air gap flux to be unbalanced and cause vibration.
----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant
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What is the reason for the vibration of the hydraulic motor during operation?