Hidden anchor recess and manufacturing installation technology

Abstract

The invention relates to a hidden anchor recess. Sides of a first elbow plate and a second elbow plate are symmetrically welded at the two sides of an anchor recess side plate. Bottom plates of the first elbow plate and the second elbow plate are welded to an outer plate respectively. One side of a third elbow plate is welded to an anchor recess top plate and the other side of the third elbow plate is welded to the inner side of an anchor chain tube. The first side of a fourth elbow plate is welded to the outer side of the anchor chain tube, the second side of the fourth elbow plate is welded to the anchor recess top plate and the third side of the fourth elbow plate is welded to the outer plate. One side of a fifth elbow plate is welded to an anchor recess bottom plate and the other side of the fifth elbow plate is welded to the outer plate. In an inner field stage, all parts of the hidden anchor recess and the five elbow plates are welded and assembled and the hidden anchor recess is welded to the outer plate at one time in a slipway stage. According to the hidden anchor recess, a plurality of elbow plates are added on the outer side of the anchor recess and the included angles between the anchor recess and other devices are fixed, the sizes of parts are determined at one time and precision of manufacturing the parts is improved. Work of the anchor recess is completed in the inner field in advance instead of being performed in the slipway. Work loads and the waste and return amount of the slipway are reduced, the period of shipbuilding is shortened and shipbuilding cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of anchor devices, and in particular relates to a concealed anchor hole and a manufacturing and installation process. Background technique [0002] The concealed anchor hole is relatively simple in design and easy to manufacture. It has a small opening on the outer plate, compact layout, and beautiful appearance. It is especially favored by shipowners and is usually used by official ships. At present, the design of domestic concealed anchor holes is based on the German "BLOHM+VOSS" standard. The steps include: determining the intersection point M of the center line of the chain barrel and the deck and the intersection point N of the center line of the chain barrel and the outer plate, and according to the ship's draft The depth and the shape of the bow side ensure that the straight line MN is perpendicular to the waterline where the point N is located; through MN, the vertical section where the center line o...

AI Technical Summary

Problems solved by technology

[0003] After the design of the concealed anchor hole is completed, there is a cutting allowance for the installation on the ship when the anchor hole parts are blanked in the infield. Most anchor hole structures have no bracket connection, and even if there is a bracket, it is only The bracket of the anchor hole is used as a structural reinforcement plate, and its blanking is to be installed after sampling and cutting margins on site. The design and installation positioning of the anchor hole is based on the design drawing and the positioning size of the anchor chain barrel and the anchor hole. The actual margin at the joint is insufficient, or the on-site cutting volume is large and inaccurate, the installation period is long, and the efficiency is low

At the same time, the connection between the bracket of the anchor hole structure and the anchor chain tube plate, the bracket and the anchor hole, and the bracket and the shell plate is complicated, and there are many related dimensions; there are many deformable factors such as welding shrinkage, blanking error, installation error, and temperature difference expansion and contraction. , it is very easy to cause problems such as unbalanced gaps, improper installation and welding, deformation, anchor depth, external dimensions, and inclination angles that cannot meet the design requirements of anchor fit and anchor hole; however, with the improvement of shipbuilding precision and efficiency requirements, extensive design and construction methods can no longer meet the needs of production

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