OEMER germany motor Germany OEMER germany model OEMER germany price

OEMER germany motors are a type of electric motor powered by simultaneously connecting to 380V three-phase AC current (phase difference 120 degrees). Because the rotor of a three-phase asynchronous motor rotates in the same direction but at a different speed than the stator's rotating magnetic field, there is slip, hence the name three-phase asynchronous motor. The rotor speed of a three-phase asynchronous motor is lower than the speed of the rotating magnetic field. The rotor windings generate electromotive force and current due to relative motion with the magnetic field, and interact with the magnetic field to produce electromagnetic torque, achieving energy conversion.

OEMER germany motor maintenance

Motor maintenance: 1. Before use, confirm whether the low-speed motor appearance is damaged? Is there any oil leakage? 2. Please first confirm whether the purchased low-speed motor specifications match the design? 3. If using accessories such as sprockets, pulleys, or gearboxes, install them according to relevant standards. 4. Lubricating grease is already filled in the low-speed motor housing; no lubricating oil change is required for 16000 hours. 5. During low-speed motor transmission operation, ensure the current does not exceed the current value indicated on the motor nameplate. 6. Please pay attention to ambient temperature, humidity, acidity/alkalinity, and other issues. 7. The suitable environment is -5℃ to 40℃, humidity below 85%, and indoor altitude below 1000 meters. 8. Incorrect installation, maintenance, or operation may cause serious damage to the low-speed motor. 9. When repairing or disassembling, strictly confirm that the external power supply to the motor is completely disconnected. 10. Safety protection devices must be properly installed to ensure absolute operational safety. 11. The motor must be grounded; please refer to relevant power distribution regulations. 12. Confirm that the motor is correctly installed before starting the low-speed motor. 13. If the low-speed motor is used with a frequency converter for low-speed transmission, an independent auxiliary cooling fan must be added. 14. After a single-phase low-speed motor is powered off, some charge remains in its capacitor; please discharge it first or ground the terminals. 15. For vertical motor installation, specify this in advance when ordering or contact our company.

OEMER germany motor development trends

The successful development of heat-resistant, high-magnetic-performance neodymium-iron-boron permanent magnet materials will enable their important application in high-power permanent magnet synchronous motors. Demand for high-power electric motors is growing in transportation and industry, such as electric vehicles, hybrid (internal combustion engine and electric motor combined) power vehicles, trains, elevators, machine tools, and robots. Marine propulsion motors require low speed and high torque. Traditional motors are difficult to use in special occasions such as high temperature, high vacuum, or confined spaces, whereas rare-earth permanent magnet motors can withstand high temperatures (referring to samarium-cobalt or high-heat-resistance neodymium-iron-boron magnets) and have a small volume, meeting these special requirements. Electric motors working in special environments, such as manipulators in aerospace equipment, inspection robots in nuclear energy equipment, and semiconductor manufacturing devices, require high-temperature motors and high-vacuum motors. Developed are 150W and 3000r/min, three-phase four-pole permanent magnet motors operating in high temperatures of 200℃ to 300℃ and a vacuum degree of 133.3×10-6Pa, with a diameter of 105mm and length of 145mm, using Sm2Co17 permanent magnets with good high-temperature characteristics.

OEMER germany motor speed control

The motor consists of three parts: a squirrel-cage motor, an electromagnetic slip clutch, and a DC excitation power supply (controller). The DC excitation power supply has low power and is usually composed of a single-phase half-wave or full-wave thyristor rectifier. Changing the conduction angle of the thyristor can change the magnitude of the excitation current. The electromagnetic slip clutch consists of three parts: an armature, magnetic poles, and an excitation winding. The armature and the latter have no mechanical connection and can rotate freely. The armature is coaxially connected to the motor rotor, called the active part, driven by the motor; the magnetic poles are coupled to the load shaft via a coupling, called the driven part. When both the armature and magnetic poles are stationary, if DC current is applied to the excitation winding, several pairs of N and S alternating polarity magnetic poles will form along the air gap circumference, with magnetic flux passing through the armature. When the armature rotates with the driving motor, relative motion between the armature and magnetic poles induces eddy currents in the armature. These eddy currents interact with the magnetic flux to produce torque, driving the rotor with magnetic poles to rotate in the same direction, but its speed is always lower than the armature speed N1. This is a slip speed control method. Changing the DC excitation current of the slip clutch changes the output torque and speed of the clutch. A hydraulic coupling is a hydraulic transmission device, generally composed of a pump wheel and a turbine, collectively called working wheels, placed in a sealed housing. A certain amount of working fluid is filled in the housing. When the pump wheel rotates driven by the prime mover, the fluid inside is pushed by the blades to rotate. Under centrifugal force, it enters the turbine along the outer ring of the pump wheel, giving thrust to the turbine blades in the same rotation direction, thereby driving the production machinery. The power transmission capacity of the hydraulic coupling is consistent with the relative amount of fluid filling in the housing. During operation, changing the fill rate can change the turbine speed of the coupling, achieving stepless speed regulation.

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