The intermediate frequency vibration with frequency f= 10~ 1000Hz is the rotation speed n=600-60000 rpm, and the speed mm/s is the vibration standard.
The high-frequency vibration with frequency f> 1000Hz is rotation speed n >；; 60,000 revolutions, taking the acceleration mm/(s 2) as the vibration standard.
Vibrating motors with exciting force greater than or equal to MV50-2, MV50-4, MV50-6 and MV30-8, the outer eccentric block is a fixed block, which is fixed on the rotating shaft by a key and cannot rotate. The inner eccentric block is an adjustable block, and the outer surface is equipped with a scale indicating the percentage of the maximum exciting force, which is pressed on the motor shaft by fastening bolts.
Extended data
The vibration standard is displacement in low frequency domain, velocity in middle frequency domain and acceleration in high frequency domain. Fault diagnosis is to highlight fault frequency components, recommend displacement signal analysis for low frequency faults, and recommend speed and acceleration signals for high frequency faults.
Vibrating motor is to install a set of adjustable eccentric blocks at both ends of the rotor shaft, and use the centrifugal force generated by the high-speed rotation of the shaft and eccentric blocks to obtain exciting force. The vibration frequency range of vibration motor is large, and only when the excitation power and power are properly matched can the mechanical noise be reduced.
Baidu encyclopedia-vibration unit
Baidu encyclopedia-vibration motor