Ship shafting integral tail pipe alignment positioning structure and positioning method

Abstract

The invention relates to a ship shafting integral tail pipe alignment positioning structure and positioning method. An adjusting bracket and adjusting bolts are arranged at each of the front and rear ends of a ship shafting tail pipe; each adjusting bracket is L-shaped, and one end of the adjusting bracket is transversely welded and fixed onto one corresponding fixing base; two pairs of the adjusting bolts are respectively arranged at the front and rear ends, perpendicularly penetrate through two side surfaces of the respective adjusting brackets, and are respectively propped against the ship shafting tail pipe axially and radially, so as to adjust the axial and radial positions of the ship shafting tail pipe; after positioning is finished, an epoxy cushion block is cast between the ship shafting tail pipe and the fixing bases; the adjusting brackets are disassembled, the exposed parts of the adjusting bolts are cut off, and sealing treatment is performed; the fixing base at the front part of the ship shafting tail pipe is a bearing steel casting, and the fixing base at the rear part of the ship shafting tail pipe is a sternpost. Through adoption of the structure and method provided by the invention, alignment positioning is performed on the ship shafting tail pipe in a three-dimensional space, so as to greatly improve the mounting accuracy; the adjusting bolts are not in contact with an epoxy medium, and bubbles and the like are unlikely to generate on the contact surfaces, so that the quality of epoxy casting can be effectively improved.

Description

Technical field [0001] The invention relates to a ship shafting integral stern tube alignment positioning structure and a positioning method, and belongs to the technical field of ship stern shaft positioning. Background technique [0002] The positioning design of existing ships before stern tube epoxy installation mostly adopts traditional design methods: Figure 1-Figure 5 As shown, the front and rear bearing casts of the ship’s stern tube are drilled, and positioning bolts 1 and 3 are installed to adjust the up, down, left and right positions of the shafting stern tube 30. Under the premise of meeting the accuracy requirements of the alignment, the positioning bolts After fixing and completing the positioning of the shaft system, then pouring the epoxy block 2 and maintaining the state until the block is solidified, and the entire installation process is completed. [0003] The existing technology has the following disadvantages: [0004] 1. The shaft system cannot be accurately ...

AI Technical Summary

Problems solved by technology

It can be seen that generally the thickness of the stern steel casting is relatively large, and it is necessary to drill very deep adjustment bolt holes to achieve the purpose, and drilling holes on the curved surface of the stern will undoubtedly increase the difficulty of construction

[0006] 3. The installation and operation are inconvenient, and the contact between the positioning bolt and the epoxy is easy to produce air bubbles, which will reduce the quality of the epoxy pouring

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