SEIMEC speed motor, motor Heilongjiang, times of constant transmission equipment

Cause brake motor electromagnetic noise What happened? The presence of a magnetic field and a series of harmonics of the fundamental magnetic brake air gap when the motor is running, the mutual effect of these magnetic fields tangential force attack, then attack outside the tangential electromagnetic torque, but also attack with the time and space to change the radial forces. Typically, there are various times, the rotational force of radial electromagnetic waves of various frequencies in the motor air gap. Each radial force waves are parting effect on the stator and rotor core, the stator core and frame as well as the emergence of periodically changing the radial distortion time, that the onset of oscillation, the oscillation frequency is the force of the wave effect of frequency. Because the rotor core rigidity is large, the amount of seizures of small oscillation COEL motor price, it is usually only ponder the stator core and frame oscillations. First and foremost because of electromagnetic noise oscillation stator ambient air pulsation caused by airborne noise. The lower-order frequency radial force waves, between adjacent two points spaced core tortuous deformed farther, relatively poor core stiffness, the radial deformation is also greater. Inversely proportional to the deformation of the stator core is about the force of the fourth wave frequency, amplitude is proportional to the force COEL motor supply, so the larger the magnitude of the radial force waves of low frequency electromagnetic noise is the result of primary origin. In addition, special attention should be that the core and frame has a certain natural oscillation frequencies, when the radial force wave frequency and the natural frequency near to even phase together, will produce resonance, when the core oscillator and radiated noise will greatly add. When the asynchronous three-phase AC motor stator through current, the number of episodes of a series, amplitude, speed, steering a different change over time sine rotational MMFs. Current rotor induction electromotive force attack, attack will also be a series of rotating MMFs. The term dynamic index 1, Step angle accuracy: each turned a stepper motor step angle error between the actual value and the theoretical value. Expressed as a percentage: error / step angle * 100%. Run several different beat their values ??are different Italian motor model, four-beat when operating within 5%,) eight-shot when operating within 15%. 2, out of step: the number of steps the motor running operation, is not equal to the theoretical number of steps. Called out of step. 3, the offset angle: a rotor axis stator teeth tooth axis deviation angle, there must be offset angle motor running, error by the offset angle generated subdivision driver can not be solved. 4, the maximum load starting frequency: the motor driving some form of voltage and rated current of the motor, in the case without the load, can directly start the maximum frequency. 5, the largest no-load operating frequency: the motor driving some form of voltage and rated current, the maximum speed of the motor without frequency load. SEIMEC speed motor, motor Heilongjiang, times of constant transmission equipment from Dongguan times of constant Transmission Equipment Co.. Dongguan times of constant Transmission Equipment Co., Ltd. (www.dgleex.com) strong, credible, in Dongguan, Guangdong reducer, variable speed machine industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead times of constant transmission equipment into the brilliant and you work for a better future!