发明名称 |
SINGLE-ACTING PIN-TYPE TELESCOPING ARM, TELESCOPING METHOD THEREOF, AND CRANE HAVING THE TELESCOPING ARM |
摘要 |
The present invention relates to a single-cylinder plug pin type telescopic arm, a crane and a telescopic method thereof. The single-cylinder plug pin type telescopic arm includes a basic arm and at least one telescopic arm sleeved in the basic arm, wherein coaxial center holes are formed in the tails of the telescopic arms, and a telescopic oil cylinder is arranged in the center holes; the telescopic oil cylinder includes a cylinder rod and a cylinder barrel, at least two cylinder heads are fixedly sleeved on the outer side of the cylinder barrel in the longitudinal direction, and at least three arm pin holes are formed in each of the basic arm and the telescopic arms in the longitudinal direction. The single-cylinder plug pin type telescopic arm provided by the present invention adopts one telescopic oil cylinder and at least two cylinder heads, each cylinder head is adapted to lock and unlock the telescopic oil cylinder and any telescopic arm, the telescopic arms are extended out or retracted in a relay transmission manner to achieve the extension and retraction of the single-cylinder plug pin type telescopic arm, the length of the oil cylinder is shortened, the cylinder diameter and the rod diameter of the oil cylinder are decreased, the cost of the oil cylinder is lowered, the upperstructure weight is reduced, the lifting capacity is improved, and there are more crane design spaces. |
申请公布号 |
EP3040304(A1) |
申请公布日期 |
2016.07.06 |
申请号 |
EP20140839217 |
申请日期 |
2014.08.27 |
申请人 |
XUZHOU HEAVY MACHINERY CO., LTD. |
发明人 |
SHAN, ZENGHAI;DONG, QUAN;DENG, YONGJIAN;ZHANG, XIN;ZHU, MENGBING;WANG, XIAOHUI;XIAO, CHENGLIN;ZHAO, YUCHUN |
分类号 |
B66C23/693 |
主分类号 |
B66C23/693 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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