The assembly and production of the electric hoist lifting motor involve a complex structural design. In terms of the main circuit operation, when the isolating switch QS1 is closed and the circuit breaker QF1 is also closed, the system becomes ready for operation. If contactor KM1 is activated, the thermal relay FR1 gets energized, allowing motor M1 to rotate in the forward direction, which enables the lifting function. Conversely, if contactor KM2 is engaged, the motor reverses its rotation, thereby facilitating the lowering function.
During the lifting process, an electromagnetic brake HB1 is integrated into the hoisting mechanism to provide essential braking protection. This feature ensures that heavy loads do not drop unexpectedly during ascent. The electromagnetic brake circuit is connected in parallel with the motor circuit. As soon as the lifting motor starts, the brake is released, allowing the load to move up and down smoothly. When the motor stops, the electromagnetic brake also loses power, causing the magnetic attraction to disappear. At this point, the spring pressure forces the inner and outer brake discs to tightly clamp together, effectively applying the braking action.
This system is designed to ensure both efficiency and safety in industrial lifting operations. The coordination between the motor and the brake guarantees controlled movement, preventing accidents and ensuring smooth operation. Understanding these mechanisms is crucial for operators and maintenance personnel to maintain the reliability and performance of the equipment.
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Taiyuan Simis Investment Casting Co., Ltd , https://www.precision-casting.biz