发明名称 |
Drag-line type excavator with hydraulic grab for working on water or ground |
摘要 |
The excavator has a grab (13) formed by a pair of half-shells (15) suspended at the end of a cable from a pivotable arm (9). The arm is mounted on a platform (1) which also carries a power source. At least one two-way jack (16) is associated with the grab, supplied with e.g. hydraulic power via one or more flexible conduits (17). The flexible conduits are secured to a fixed portion (14) of the grab structure to guide it relative to the axis of its suspension cable. The conduits are wound on a drum (19) mounted on the pivotable arm. A pressure control system regulates the fluid pressure within the conduits during winding and unwinding, and delivers pressurised fluid to operate the jacks.
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申请公布号 |
FR2730750(A1) |
申请公布日期 |
1996.08.23 |
申请号 |
FR19950002008 |
申请日期 |
1995.02.16 |
申请人 |
PERRIER TP |
发明人 |
FRACCHETTI DIDIER JACQUES |
分类号 |
E02F3/47;(IPC1-7):E02F3/46;E02F3/58 |
主分类号 |
E02F3/47 |
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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