Heynau motor, Germany Heynau model, Heynau price

Heynau motor is a device that converts electrical energy into mechanical energy. It uses energized coils (i.e., stator windings) to generate a rotating magnetic field that acts on the rotor (such as a squirrel-cage closed aluminum frame) to form electromagnetic rotational torque. Motors are classified into DC motors and AC motors based on the power supply used. Most motors in power systems are AC motors, which can be synchronous motors or asynchronous motors (the speed of the stator magnetic field and the rotor rotation speed do not remain synchronized). The motor mainly consists of a stator and a rotor. The direction of motion of current-carrying conductors under force in a magnetic field is related to the current direction and the direction of magnetic field lines (magnetic field direction). The working principle of the motor is the force exerted by the magnetic field on the current, causing the motor to rotate.

Heynau motor advantages

The motor operates in a self-controlled manner, so it does not require an additional starting winding on the rotor like a synchronous motor under heavy-load start with variable frequency speed control, nor does it produce oscillation and loss of synchronism during sudden load changes. The permanent magnets in small and medium-capacity brushless DC motors mostly use rare-earth neodymium-iron-boron (Nd-Fe-B) materials with high magnetic energy product. Therefore, the volume of rare-earth permanent magnet brushless motors is reduced by one frame size compared to three-phase asynchronous motors of the same capacity. Over the past thirty years, research on variable frequency speed control for asynchronous motors has ultimately been seeking methods to control asynchronous motor torque. Rare-earth permanent magnet brushless DC motors will surely show advantages in the speed control field due to their wide speed regulation, small size, high efficiency, and small steady-state speed error. Brushless DC motors have the characteristics of DC brushed motors and are also devices with changing frequency, hence they are also known as DC variable frequency; the internationally common term is BLDC. The operating efficiency, low-speed torque, and speed accuracy of brushless DC motors are better than inverters using any control technology, making them worthy of industry attention. Products have been produced exceeding 55kW, and can be designed up to 400kW, meeting the industry's needs for energy saving and high-performance drive.

Heynau motor speed control

The motor is essentially a servo motor, composed of a synchronous motor and a drive, and is a variable frequency speed control motor. The voltage-regulated brushless DC motor is a true brushless DC motor. It consists of a stator and a rotor. The stator is made of an iron core, and the coils use "forward-reverse-forward-reverse..." windings, thereby generating a fixed magnetic field of N-S poles. The rotor consists of a cylindrical magnet (with a shaft in the middle) or an electromagnet with slip rings. This brushless DC motor can generate torque but cannot control the direction. In any case, this motor is a very significant invention. When used as a DC generator, this invention can produce DC current with continuous amplitude, thereby avoiding the use of filter capacitors. The rotor can be permanent magnet, brushed excitation, or brushless excitation. When used as a large motor, this motor will produce self-inductance and requires protection devices.

Heynau motor common issues

Motor issues: 1. The main drive motor operates abnormally, and the bearings overheat. The main drive motor operates abnormally; the slip motor vibrates violently during operation, causing bearing overheating. Disassemble the clutch armature and pole rotor to check whether the motor bearings severely lack lubricating grease, causing severe bearing wear and decreased motor performance. At this time, replace the damaged bearings and add sufficient lubricating grease. Under normal conditions, all components of this mechanism should be cleaned and lubricated to ensure the normal operation of the main drive motor; 2. The host speed decreases periodically. This situation is mostly caused by mechanical failures. There are many rubber rollers in the speed control motor, each supported by bearings. If any bearing at either end of a rubber roller fails, it may cause the host speed to drop periodically. In severe cases, the host movement will be more obstructed, and the bearings should be replaced immediately. In addition, pay attention to the working condition of the bearings and lubrication points of all host rollers (including plate, blanket, and impression cylinders). If a failure occurs, it will also affect the printing speed.

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