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Multi-stage telescopic arm device and deep-digging excavator comprising multi-stage telescopic arm device
A telescopic arm (12), comprising an outer cylinder (13) and multiple stages of inner cylinders (21, 23), is provided on the distal end of a boom (4). The outer cylinder (13) is provided with a telescopic cylinder (25) and telescopic stationary sheave units (31, 31'). The telescopic cylinder (25) has a sheave mounting fixture (30) mounted thereon, and the sheave mounting fixture (30) is provided with telescopic movable sheave units (33, 33'). An expansion and contraction rope (34) is wound four times between each sheave (31A, 31B) of the telescopic stationary sheave unit (31) and each sheave (33A, 33B) of the telescopic movable sheave unit (33). An expansion and contraction rope (34') is wound four times between each sheave (31A', 31B') of the telescopic stationary sheave unit (31') and each sheave (33A', 33B') of the telescopic movable sheave unit (33').
Multi-stage telescopic arm device and deep-digging excavator comprising multi-stage telescopic arm device
A telescopic arm (12), comprising an outer cylinder (13) and multiple stages of inner cylinders (21, 23), is provided on the distal end of a boom (4). The outer cylinder (13) is provided with a telescopic cylinder (25) and telescopic stationary sheave units (31, 31'). The telescopic cylinder (25) has a sheave mounting fixture (30) mounted thereon, and the sheave mounting fixture (30) is provided with telescopic movable sheave units (33, 33'). An expansion and contraction rope (34) is wound four times between each sheave (31A, 31B) of the telescopic stationary sheave unit (31) and each sheave (33A, 33B) of the telescopic movable sheave unit (33). An expansion and contraction rope (34') is wound four times between each sheave (31A', 31B') of the telescopic stationary sheave unit (31') and each sheave (33A', 33B') of the telescopic movable sheave unit (33').
Multi-stage telescopic arm device and deep-digging excavator comprising multi-stage telescopic arm device
TADA SHIGEYA (author) / INAMOTO AKIRA (author)
2015-06-24
Patent
Electronic Resource
English
IPC:
E02F
Baggern
,
DREDGING
| European Patent Office | 2015
European Patent Office | 2016
European Patent Office | 2016