Stern tube front flange hoisting tool

By designing a combination of rectangular frame structure, threaded propulsion shaft, L-shaped and T-shaped swing rod, rubber jacket and metal positioning ring integrated into the tool body, the thread wear and operation problems in the lifting tool body are solved, and convenient tightness is achieved Operation and wear protection improve lifting efficiency.

CN222348515UActive Publication Date: 2025-01-14CHENGXI SHIPYARD
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Patent Information

Application Number
CN202421129744.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-23
Publication Date
2025-01-14
Estimated Expiration
2034-05-23

AI Technical Summary

Technical Problem

The existing lifting tool lacks a protective structure for the threads on the inner wall of the flange oil hole, which leads to gaps during the lifting process, causing thread wear and lack of auxiliary elastic components, which is troublesome to operate and requires the use of external force tools.

Method used

A stern tube front flange lifting tool is designed, including a rectangular frame structure mount, threaded propulsion shaft, L-shaped and T-shaped swing rod, rubber jacket and metal positioning ring. Through the combination of these components, the twisting of the thread is achieved. Elastic and anti-wear protection are integrated into the tool body, eliminating the use of external tools.

Benefits of technology

It realizes convenient and tightening operation of threads, reduces operation difficulty and force, extends the force arm during twisting, avoids thread wear, simplifies the disassembly and assembly process of the tooling, and improves efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222348515U_ABST
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Abstract

The utility model provides a stern tube front flange hoisting tool, and relates to the technical field of hoisting tools, the stern tube front flange hoisting tool is characterized in that two T-shaped swing rods are symmetrically and rotatably connected to a second mounting seat, rubber positioning sleeves are sleeved at the head ends of the two T-shaped swing rods, and when the two T-shaped swing rods swing, expand and obliquely unfold, the rubber positioning sleeves are sleeved at the head ends of the two T-shaped swing rods; the rubber positioning sleeve abuts against and makes contact with the inner wall of the tail shaft pipe flange so as to abut against and fix the threaded force bearing shaft. The threaded propeller shaft is sleeved with a threaded ring in a screwed mode, and the tail ends of the two connecting rods on the second mounting base are rotationally connected with the two T-shaped swing rods correspondingly. The threaded force bearing shaft is sleeved with a rubber outer sleeve, and when the threaded force bearing shaft is matched with the oil hole in an inserted mode, the rubber outer sleeve is arranged between the threaded force bearing shaft and the oil hole in a spaced mode. The threaded bearing shaft and the oil hole can be separated through the rubber outer sleeve, the situation that the threaded bearing shaft makes direct contact with the threads on the inner wall of the oil hole to generate frictional wear is avoided, and compared with the prior art lacking of a thread protection structure, good anti-wear protection can be carried out on the internal threads of the oil hole.
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