Full analysis of the quality inspection process for stage electric hoists

　　1、 Appearance inspection

　　Appearance inspection is the first step in quality testing of stage electric hoists. At this stage, the inspectors will conduct a comprehensive inspection of the appearance of the electric hoist, including whether the shell has scratches, deformations, rust, and other conditions;

　　Are there any damages, deformations, or other issues with components such as hooks and chains; Whether the electrical circuits are neat and undamaged.

　　The purpose of appearance inspection is to ensure that the electric hoist has no obvious defects in appearance, laying the foundation for subsequent inspection work.

　　2、 No load operation test

　　The no-load operation test is conducted after the appearance inspection is qualified. At this stage, the inspection personnel will run the electric hoist without load for a period of time to observe whether it runs smoothly, without any abnormal noise or vibration;

　　Is the motor heating normally; Whether the control buttons are sensitive and reliable, etc.

　　The purpose of the no-load operation test is to check whether the mechanical structure and electrical system of the electric hoist are operating normally, in preparation for subsequent load operation tests.

　　3、 Load running test

　　Load operation testing is the core component of quality inspection for stage electric hoists. At this stage, the testing personnel will gradually increase the load weight based on the rated load of the electric hoist and conduct multiple load operation tests.

　　During the testing process, the inspectors will observe the operation of the electric hoist, including whether the lifting speed is stable, whether the braking is reliable, and whether the motor is overloaded.

　　At the same time, professional testing equipment such as tension gauges and thermometers will be used to measure parameters such as the load capacity and motor temperature of the electric hoist. The purpose of load operation testing is to ensure that the electric hoist can operate safely and stably under rated load.

　　4、 Security performance testing

　　Safety performance testing is an important part of the quality inspection of stage electric hoists. At this stage, the testing personnel will conduct a comprehensive test of the safety performance of the electric hoist, including whether the overload protection, limit protection, emergency stop protection and other functions are normal;

　　Whether the strength of components such as chains and hooks meets the requirements. The purpose of safety performance testing is to ensure that the electric hoist can timely and effectively protect the safety of personnel and equipment during use.

　　5、 Electrical performance testing

　　Electrical performance testing is a key link in the quality inspection of stage electric hoists. At this stage, the testing personnel will use professional electrical testing equipment to comprehensively test the electrical performance of the electric hoist, including insulation resistance, grounding resistance, and withstand voltage test of the motor; Reliability and stability of control circuits.

　　The purpose of electrical performance testing is to ensure the safety and reliability of the electrical system of the electric hoist, providing guarantees for its normal operation.

　　6、 Provide a testing report

　　After completing the above tests, the testing personnel will issue a detailed testing report based on the test results. The inspection report will include information such as the model, specifications, production date, inspection items, and inspection results of the electric hoist.

　　The inspection report is an important proof document for the quality of electric hoists, and also an important reference for users to purchase and use electric hoists.