Birkenbeul motor Germany Birkenbeul model Birkenbeul price

Birkenbeul motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. It generally refers to all machines that can convert mechanical energy into electrical energy and electrical energy into mechanical energy. The motor housing protection rating is IP44, and the cooling method is IC0141 totally enclosed fan-cooled (TEFC). The ambient air temperature varies with the seasons but does not exceed 15℃ to 40℃. The altitude does not exceed 1000m. Refer to the nameplate for rated frequency, rated voltage, insulation class, and duty cycle. When the supply voltage varies within ±0.05 of the rated value (frequency at rated value), the motor output power maintains the rated value.

Birkenbeul motor mechanical characteristics

Motor control issues. Permanent magnet synchronous motors do not require external energy to maintain their magnetic field, but this also makes it extremely difficult to adjust and control the magnetic field from the outside. However, with the development of power electronic devices such as MOSFET and IGBT and control technologies, most permanent magnet synchronous motors in applications can operate without magnetic field control, performing only armature control. The design needs to combine three new technologies: permanent magnet materials, power electronic devices, and microcomputer control, enabling permanent magnet synchronous motors to operate under new working conditions. In addition, permanent magnet AC servo systems using permanent magnet synchronous motors as actuators are systems with certain nonlinearity, strong coupling, and time-varying characteristics. At the same time, the servo objects also have strong uncertainty and nonlinearity, and the system is susceptible to varying degrees of interference during operation. Therefore, adopting advanced control strategies and advanced control system implementation methods (such as DSP-based control) to improve the overall intelligence and digitalization level of the system should be a major breakthrough in the current development of high-performance permanent magnet synchronous motor servo systems.

Birkenbeul motor precautions

Protection of motor against oil and water, A: Servo motors can be used in locations subject to water or oil droplet intrusion, but they are not fully waterproof or oil-proof. Therefore, servo motors should not be placed or used in environments submerged in water or oil. B: If the servo motor is connected to a gearbox, an oil seal should be used when operating the servo motor to prevent oil from the gearbox from entering the servo motor. C: Do not immerse servo motor cables in oil or water. Two, Servo motor cable → Stress relief. A: Ensure that the cable is not subjected to torque or vertical load due to external bending forces or its own weight, especially at the cable outlet or connection point. B: In cases where the servo motor moves, the cable (the one supplied with the motor) should be firmly fixed to a stationary part (relative to the motor), and an additional cable installed in a cable carrier should be used to extend it, so that bending stress is minimized. C: Make the bending radius of the cable as large as possible. Three, Allowed shaft end load for servo motors. A: Ensure that radial and axial loads applied to the servo motor shaft during installation and operation are controlled within the specified values for each model. B: Exercise extreme caution when installing a rigid coupling, as excessive bending load may cause damage or wear to the shaft end and bearings. C: It is recommended to use flexible couplings to keep radial load below the allowed value; this component is designed for servo motors with high mechanical strength. D: For allowed shaft loads, please refer to the "Allowed Shaft Load Table" (user manual). Four, Servo motor installation notes, A: When installing/removing coupling components to/from the servo motor shaft end, do not strike the shaft end directly with a hammer. (Striking the shaft end directly with a hammer will damage the encoder on the other end of the servo motor shaft.) B: Strive to align the shaft end to the optimal state (misalignment may cause vibration or bearing damage).

Birkenbeul motor working principle

Motor principle: When single-phase sinusoidal current passes through the stator winding, the motor generates an alternating magnetic field. The strength and direction of this magnetic field change sinusoidally with time, but its spatial orientation is fixed, so this magnetic field is also called an alternating pulsating magnetic field. This alternating pulsating magnetic field can be decomposed into two rotating magnetic fields with the same speed but opposite directions of rotation. When the rotor is stationary, these two rotating magnetic fields generate two torques of equal magnitude and opposite direction in the rotor, resulting in zero net torque, so the motor cannot rotate. When we use external force to make the motor rotate in a certain direction (e.g., clockwise), the relative motion of cutting magnetic field lines between the rotor and the clockwise rotating magnetic field decreases; the relative motion of cutting magnetic field lines between the rotor and the counter-clockwise rotating magnetic field increases. Thus, the balance is broken, the total electromagnetic torque generated by the rotor is no longer zero, and the rotor will start rotating in the pushing direction. To enable single-phase motors to rotate automatically, we can add a starting winding to the stator. The starting winding is spatially displaced by 90 degrees from the main winding, and a suitable capacitor is connected in series with the starting winding so that the current in it is approximately 90 degrees out of phase with the main winding current, known as the phase-splitting principle. In this way, two currents with a 90-degree phase difference in time are fed into two windings with a 90-degree spatial displacement, generating a (two-phase) rotating magnetic field in space. Under the action of this rotating magnetic field, the rotor can start automatically. After starting, when the speed rises to a certain level, the starting winding is disconnected by a centrifugal switch installed on the rotor or other automatic control devices, and only the main winding works during normal operation. Therefore, the starting winding can be designed for short-time duty. However, in many cases, the starting winding is not disconnected; we call this type of motor a single-phase motor. To change the direction of rotation of this motor, simply swap the wiring terminals of the auxiliary winding. Another method to generate a rotating magnetic field in single-phase motors is called the shaded-pole method, also known as single-phase shaded-pole motors. The stator of this type of motor is salient-pole, with two-pole and four-pole variants. Each pole has small slots cut into 1/3 to 1/4 of the full pole face, dividing the pole into two parts. A short-circuited copper ring is fitted over the smaller part, as if shading this part of the pole, hence the name shaded-pole motor. The single-phase winding is wound over the entire pole, and the coils of each pole are connected in series. During connection, the polarity produced must be arranged sequentially as N, S, N, S. When the stator winding is energized, main magnetic flux is generated in the poles. According to Lenz's law, the main magnetic flux passing through the short-circuited copper ring induces a current in the copper ring that lags in phase by 90 degrees. The magnetic flux generated by this current also lags behind the main magnetic flux in phase, acting similarly to the starting winding of a capacitor motor, thereby generating a rotating magnetic field that causes the motor to rotate.

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