The primary power source for the assembly and manufacturing of electric hoists is the lifting motor. Typically, the lifting motor used in CD1 and MD1 wire rope electric hoists is the ZD series lifting motor. This motor operates at a speed of 1380 revolutions per minute (rpm), with three-phase electricity, a voltage of 380V, and a frequency of 50 Hz.
However, during operation, improper handling can lead to common issues such as the motor failing to rotate or the hoist being unable to lift heavy loads. Below are some typical problems and their corresponding solutions related to the lifting motor of an electric hoist:
1. Faulty electrical components or loose wiring can cause the motor to stop working. To resolve this, it's essential to inspect and repair the electrical system and wiring thoroughly.
2. Overloading the hoist can damage the motor and prevent it from functioning properly. It’s crucial not to exceed the rated load capacity to ensure the motor runs smoothly.
3. Rust buildup between the brake wheel and the rear cover may make it difficult to remove the brake wheel. In such cases, the brake wheel should be removed and the rusted areas cleaned.
4. A voltage that is 10% below the rated value can also cause the motor to malfunction. The issue can be resolved by restoring the voltage to its normal level.
5. Frequent use without proper rest periods can reduce the motor's lifespan. It is recommended to operate the hoist according to the FC30% duty cycle to avoid overheating and wear.
6. If the brake clearance is too tight, the brake shoe may not fully disengage during operation, leading to unnecessary resistance. Adjusting the gap to the correct specification will help resolve this issue.
Proper maintenance, correct usage, and regular inspections are key to ensuring the long-term performance and safety of electric hoist motors.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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