Kerekan listrik digerakkan oleh motor listrik dan mengangkat atau menurunkan benda berat melalui tali atau rantai. The electric motor provides power and transmits the rotational force to the rope or chain through the transmission device, thereby realizing the function of lifting and carrying heavy objects. Electric hoists usually consist of a motor, reducer, brake, rope drum (or sprocket), controller, housing and operating handle. The motor provides power, the reducer reduces the motor speed and increases torque, the brake is used to control and maintain the position of the load, the rope drum or sprocket is used to wind the rope or chain, and the controller is used to control the operation of the electric hoist. Below, this article will introduce some electrical installation of electric hoists and repair methods after the hoist is damaged.
kerekan listrikis made of I-beam steel, and the wheel tread is conical. The track model must be within the recommended range, otherwise it cannot be installed. When the running track is H-shaped steel, the wheel tread is cylindrical. Silakan periksa dengan teliti sebelum pemasangan. Electrical wiring personnel must hold an electrician's work certificate to operate. When the power supply is disconnected, perform external wiring according to the usage of the electric hoist or the matching conditions of the hoist.
When installing the electric hoist, check whether the plug used to fix the wire rope is loose. Kabel grounding harus dipasang pada track atau struktur yang terhubung dengannya. The grounding wire can be a bare copper wire of φ4 to φ5mm or a metal wire with a cross-section of not less than 25mm2.
1. It is necessary to carefully check the main control circuit and cut off the power supply of the hoist motor; untuk mencegah sirkuit utama dan kontrol tiba-tiba menyuplai daya ke motor tiga fase dan membakar motor, atau motor hoist yang beroperasi dengan daya akan menyebabkan kerusakan.
3. Bila tegangan terminal motor hoist ditemukan lebih rendah dari 10% dibandingkan tegangan pengenal, barang tidak akan dapat hidup dan tidak akan beroperasi secara normal. At this time, a pressure gauge needs to be used to measure the pressure.
