The invention provides a crane and a rotational weight-balancing device thereof. The rotational weight-balancing device is arranged on a rotary table of the crane and comprises: a balancing weight, which is arranged on the bottom of a first side of the rotary table; and a driving mechanism, which is disposed between the rotary table and the balancing weight to drive the balancing weight to rotate on the bottom of the rotary table. The driving mechanism comprises: an oil cylinder being hinged to the rotary table; and a connecting rod mechanism connected between the rotary table and the balancing weight, wherein the connecting rod mechanism is connected to the oil cylinder to drive the balancing weight to rotate on the bottom of the rotary table. The crane and the rotational weight-balancing device are adjustable in moment of force so that the crane is improved in stability and lifting performances.
Crane and rotational weight-balancing device thereof
2015-08-12
Patent
Elektronische Ressource
Englisch
IPC: | B66C Krane , CRANES |
Tower crane balancing weight locking device and locking method thereof
Europäisches Patentamt | 2022
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