The invention relates to a swing arm type lorry-mounted crane which comprises a beam. The lower side of the left portion of the beam is provided with a hydraulic cylinder A, and a supporting disc A is connected to the lower end of the hydraulic cylinder A. The lower side of the right portion of the beam is provided with a hydraulic cylinder B, and a supporting disc B is connected to the lower end of the hydraulic cylinder B. The upper side of the middle portion of the beam is provided with an angling cylinder and a rotary table. The upper side of the angling cylinder is provided with a gear A, and the outer side of the upper portion of the rotary table is provided with a gear B. The upper side of the rotary table is provided with a foundation support. The upper side of the foundation support is provided with a stand column. The right side of the foundation support is provided with a derricking cylinder. The upper end of the stand column is provided with a suspension arm, and the derricking cylinder is connected to the suspension arm as well. The upper side of the suspension arm is provided with a telescopic cylinder. The lower side of the right end of the suspension arm is provided with a lifting hook. The swing arm type lorry-mounted crane has the beneficial effects of being reasonable in structure, small in occupied space, flexible to work and high in safety.
Swing arm type lorry-mounted crane
2015-11-18
Patent
Elektronische Ressource
Englisch
IPC: | B66C Krane , CRANES |
Hook retracting device of lorry-mounted crane and lorry-mounted crane
Europäisches Patentamt | 2020
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