(70) to pivot upwardly and rearwardly; a second lifting step for pulling the pull-raising rope (171) rearward until a brace body portion (76) has a rearwardly inclined position with respect to a vertical direction; a strut return step of pulling a pull-return cable (23a) forward to ...
A support structure for supporting a lift crane, and in particular to a lift crane jack-up structures, including rigs, platforms, barges, boats or the like, wherein the lift crane is positioned about a leg of the jack-up structure atop the jack-house. The preferred embodiment of the prese...
A portable vinyl lifting crane with a nip roller drive system that feeds a preferred flat rope between the rollers for traction to achieve two primary functions. One function enables the hoist to climb itself up to a structure by securing one end of a preferably flat rope to a support beam...
The invention relates to a method for raising and/or lowering a load-handling element (9) of a lifting device (6), in particular of a crane (1), wherein the lifting device (6) can be operated at least with a first velocity (v1) or with a... P Giuliano 被引量: 0发表: 2020年...
PROBLEM TO BE SOLVED: To provide a method for controlling an electric cable reel for feeding a crane lifting sling, preventing damage to a feeder cable and the electric cable reel, by previously preventing application of supporting force of the lifting sling on the feeder cable due to the defl...
A stepless luffing mechanism for the super-lifting counterweight of a crawler crane, and an operating method thereof. The luffing mechanism includes a main luffing mast, a lifting oil cylinder, a luffing structure and a pulling board for the counterweight, and a super-lifting mast. The cylinder...
using the ASSIST-IoT reference architecture. Empowered with a machine learning model, the system can detect fall accidents and swiftly notify the occupational health and safety manager. To train the model, a novel multimodal fall detection dataset was collected from ten human participants and an anth...
To address the above limitations, this paper investigates a flexible manufacturing system with a crane transportation problem considering a multi-state collaborative configuration. 3. Formulation In this section, the LSP-FM&CT-MCC is introduced in detail to the actual manufacturing environment of heavy...
Crane design and construction hoisting scheme steel 翻译结果2复制译文编辑译文朗读译文返回顶部 正在翻译,请等待... 翻译结果3复制译文编辑译文朗读译文返回顶部 Crane design and construction method of lifting scheme of steel structure 翻译结果4复制译文编辑译文朗读译文返回顶部 ...
Finally, it is an object of this invention to provide a top-down method of assembling a dome structure such that construction activity is almost entirely restricted to working at ground level with a minimum of lifting. Other novel features which are characteristic of the invention, as to organiz...