发明授权
- 专利标题: Crane for extracting horizontal long tube bundles
- 专利标题(中): 用于提取水平长管套件的起重机
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申请号: US3765544D申请日: 1972-08-16
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公开(公告)号: US3765544A公开(公告)日: 1973-10-16
- 发明人: MURPHY T
- 申请人: MURPHY T
- 专利权人: T Murphy
- 当前专利权人: T Murphy
- 优先权: US28096672 1972-08-16
- 主分类号: B23P19/02
- IPC分类号: B23P19/02 ; B66C1/00 ; B66C23/36 ; B66F1/00
摘要:
This disclosure teaches a hydraulic crane for removing a horizontal long tube bundle along with its tube sheet from its shell. A winch line, connected to the tube sheet, extracts the tube bundle. The crane has a boom comprising a proximal and a distal section mounted in telescoping relationship. The distal section has a boom point with a pair of hoisting slings depending therefrom to support the tube bundle as it is being extracted from the shell. A pulley suspended from the proximal section aligns the winch line in horizontal orientation. The hoisting slings are spaceable apart sufficiently so that they span a major portion of the length of the tube bundle whereby the tube bundle can be suspended and balanced safely.
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