VB-16144-W Vibration Motor

VB-16144-W Vibration Motor General specification:

Model Type	VB
Phase	3 phase
Vibratory Force	16 KN
Rated Power	1.4 KW
Speed	1440 RPM
Installation dimension	290*280 MM
Rated Voltage	220/380V/400V/660V
Duty	Continuous S1
Frequency	50/60 HZ
Protection Class	IP54/IP55
Insulation Class	B/F/H

 

What is Motor Excitation Force?

The excitation force of a motor refers to the periodic or non-periodic force generated during its operation, which induces vibrations in the mechanical system (e.g., the motor itself or connected equipment). This force arises from electromagnetic interactions, mechanical imbalances, or intentional design features (e.g., in vibration motors).

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1. Generation Principles

1.1 Electromagnetic Forces

In AC motors, interactions between the stator and rotor magnetic fields produce time-varying electromagnetic forces:

Asynchronous Motors: Current in the rotor interacts with the rotating stator field, generating radial and tangential force waves that cause vibrations.

Synchronous Motors: Magnetic pole alignment with power frequency may create specific vibration frequencies.

1.2 Mechanical Imbalance

If the rotor has uneven mass distribution (e.g., manufacturing errors, loose components), centrifugal forces during rotation create excitation forces. This is a primary source of low-frequency vibrations.

1.3 Structural Resonance

When the motor's or load's natural frequency matches the excitation force frequency, resonance occurs, amplifying vibrations significantly.

1.4 Intentional Design (e.g., Vibration Motors)

Vibration motors use rotating eccentric masses (unbalanced weights) to generate centrifugal forces as excitation forces, directly driving vibrations in applications like vibrating screens or feeders.

 

 

 

 

 

 

 

 

 

 

 

 

 

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