The gear is assembled and disassembled, after all, the gear has a service life, especially in the maintenance industry, it is often encountered that the gear is disassembled from the shaft by heating the gear, which uses the gear disassembly heater.

 The pinion can be pressed down by Ramallah and press, and the big gear is heated by induction heating, so that the inner hole is heated and expanded, and there is a gap between the inner hole and the shaft of the thick gear, so as to realize the separation of the gear and the shaft, and it can be removed.

 Reducers, steel mills, shipyards, etc., will use hot gear removal equipment, gear size is relatively fixed, heating coil can be made into a fixed size induction heating ring, the heating wire trap to the outside of the gear heating. There are many types of small and large gears, which can be heated by hand winding coils, winding the excitation line to the outside of the gear one circle at a time, starting the heating equipment, generally heated to more than 200 degrees before it can be removed.

 When the gear is heated, the shaft will also be heated by conduction, but the expansion coefficient of the two is not the same, the shaft is solid, so there will be a gap, and then by external force, such as lifting, drawing, jack, crowbar, etc., the gear or shaft will be shifted first and then disassembled.

Examples of fixed coil brackets and wound coils

Gear removal heating video

The gear has the shape characteristics of large outer diameter and small inner hole, such as the gear with an outer diameter of 1 meter, some of the inner holes are more than 200 mm, and the gear hot dismantling equipment needs to heat it through to complete the hot dismantling.

Gear heating equipment factory, made in China

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