-
公开(公告)号：US10974937B2
公开(公告)日：2021-04-13
申请号：US16483364
申请日：2018-02-02
申请人： ITREC B.V.
摘要： A crane housing having a substantially cylinder-shaped circumferential wall with a lower section and lower end mounted to a slew bearing of substantially the same diameter includes a boom support structure to support an inner end of a pivotal boom arranged at a front side of the crane housing. The boom support structure includes at least two box elements of each of which an end portion overlaps with and is integrated with the upper section of the circumferential wall. Oblique strengthening ribs are mounted onto and integrated with a side of the circumferential wall and extend from a respective box element end portion in an oblique downwards direction towards the lower end of the wall.
-
公开(公告)号：US12006189B2
公开(公告)日：2024-06-11
申请号：US17601243
申请日：2020-04-03
申请人： ITREC B.V.
CPC分类号： B66C23/52 , B66C19/00 , B66C23/823
摘要： A dual hoist crane is provided with a heave compensation system that can be used for both the main and for the auxiliary hoisting assembly. The heave compensation system includes a first set of sheaves for guiding the main hoisting cable and a second set of sheaves for guiding the auxiliary hoisting cable. The heave compensation system is configured to individually lock the first set of sheaves and the second set of sheaves to a heave compensation cylinder, for respectively providing the main hoisting assembly and the auxiliary hoisting assembly with heave compensation.
-
搜索结果
2 条记录 (耗时 0.009 秒)
