Linear motor has its unique features, is cannot replace by a rotary motor. At the same time, it is not used in any occasion linear motor can achieve good effect. Therefore must first understand the basic principles of the application of linear motor, so that the utility maximization. The basic principles of its application has the following four aspects. First, select the appropriate speed. Linear induction motor and synchronous movement speed, and synchronous speed is proportional to the pole pitch. So the choice of the pole pitch range determines the speed range. Pole pitch is too small will reduce the utilization rate of slot, increase slot leakage resistance and reduce the quality factor, thus reducing the efficiency and power factor of the motor. The lower limit of pole pitch usually get a 3 cm. Polar distance can not limit, but when the motor output power must be the primary iron core of the longitudinal length is limited; At the same time in order to reduce the longitudinal edge effect, the pole of the motor can't too little, so the polar distance can't be too big. Second, must have the appropriate thrust. Rotating machine can adapt to a lot of thrust. Will different gearbox, rotary motor speed and torque can be different. In the case of low speed, torque can expand dozens to hundreds, so that with a small motor can drive a big load, power, of course, is conserved. Linear induction motor is different, it can't use gearbox change speed and thrust, so its thrust cannot expand. To get a bigger thrust, only by increasing the size of the motor. Sometimes it is not economic. In general, in industrial applications, the linear induction motor is suitable for light load. Third, must have suitable reciprocating frequency. In industrial applications, the linear induction motor is a reciprocating motion. In order to achieve higher productivity, requires high reciprocating frequency. This means that the motor should be in a relatively short period of time to finish the trip, on a trip, go through the process of acceleration and deceleration, which is to start and brake one at a time. Reciprocating frequency is higher, the greater the acceleration of the motor, the greater the acceleration of the thrust, sometimes even more than the load thrust acceleration of the thrust. Thrust increase, leading to the size of the motor, and its quality increase caused by acceleration of the thrust to further improve, sometimes create a vicious cycle. Four, to have the right positioning accuracy. In many applications, when the motor running in place by the mechanical limit to stop moving. In order to make the small impact when in place, can be combined with mechanical cushioning device. Without mechanical limit, compare locating method is simple, before put in place by travel switch control, do reverse connect braking and braking energy of motor, and to stop when in place. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone:
