2013年9月2日星期一

Crane working operation precautions

Therefore, in the run-in period is likely to cause Crane parts (especially the mating surface) wear, wear faster. At this time, if the overload operation, it may cause damage to parts that Crane produced early failure.1): Understanding lifting cargo size, central location to find cargo crane column distance from the center, according to the lifting capacity of the crane from the view parameters.

2): Crane lifting capacity (torque) is fixed, the larger crane working radius. Lifting cargo lighter, smaller working radius, lifting heavier cargo. (Working radius refers to the moment of the horizontal distance center to the hook.) -

3): Consider the size of the crane lifting capacity of the chassis size, the larger the better beam is selected, crane big and small chassis, will beam deformation and fracture. Small chassis, engine power is small, the impact of the lifting capacity of the crane. Therefore, we consider the beam 230mm, you choose the 3 tons crane. When considering the beam 250mm, consider the following six tons crane. 280mm girders can select one of eight tons crane. Like the previous four after eight chassis can be considered under 10 tons crane.
Development Status
Situation abroad
Internationally Sweden, Italy, Austria, Germany, USA, Japan, Canada and other countries, more than a dozen companies Pallet stackers dozens of scale models of truck mounted crane, mainly in Europe mainly. Europe from the 1940s and 1950s began producing truck mounted crane, major manufacturers have HIAB (Sweden), FASSI (Italy), FERRARI (Italy), PALFINGER (PALFINGER, Austria), TIRRE (Germany), HEILA (Italy ), etc.; Asian manufacturers are producing crane Kato (Japan), Tadano (Japan), Furukawa UNIC (Japan); American manufacturers are producing truck mounted crane GROVE and so on. These are the world's leading companies producing truck mounted crane, companies have formed a multi-function

Diversified, variety series, electro-hydraulic control system integration products, maximum weight over 60t, boom length exceeds 30m, maximum lifting torque has exceeded 1000kNm

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