SU1008069A2 - Apparatus for marking-out ship hull section set - Google Patents

Abstract

DEVICE FOR THE MARKING OF A SET OF SECTIONS OF THE CASING OF THE SHIP on the auth. St. No. 882817, characterized in that, in order to improve the accuracy of the marking, the plumb line is provided with a roller coupled to a flexible link, and a handle mounted on the horizontal axis rotatably. (P

Description

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The invention relates to shipbuilding and can be used in the manufacture of a ship hull. According to the main author. St. No. 882817 discloses a device for marking a set of ship hull sections, comprising a movable flexible link hinged to a plumb line, which is provided with an indicator of verticality, and supporting posts coupled to a flexible link 1. The known accuracy in the known device is difficult to achieve. moment in the vertical plane during the marking process. The purpose of the invention is to improve the accuracy of markup. The goal is achieved by the fact that in the device for marking a set of sections of the ship hull, consisting of a mobile flexible link, hingedly connected to a plumb line, which is provided with an indicator of verticality, as well as fixed support struts with roller bearings and rolls, the plumb line is equipped with a roller matched with a flexible link, and a handle mounted on a horizontal axis so as to be rotatable. FIG. 1 shows the device, a general view; in fig. 2 is a diagram for inserting a plumb into a vertical plane; in fig. 3 — one of the embodiments of the plumb bob; in fig. 4 shows another embodiment of the plumb line; in fig. 5 is a view A of FIG. 3; in fig. 6 — unit for fastening the stand on the conductor; in fig. 7 — view B in FIG. 6. The device consists of a flexible link 1, coupled with the roller 2 plumb line 3, which is equipped with a rotation stop around its own axis. This limiter consists of cheeks 4 and 5, connected by rivets or screws with the help of washers 6, in the form similar to roller 2. The plummet contains a cylindrical circulating level 7, mounted on the bracket 8, and a handle 9. Pa. FIG. 3 shows an embodiment of a handle for two-hand operation, and FIG. 4 - for one-hand operation. A scriber 10 is attached to the lower part of the handle 9. The handle 9 is mounted on a horizontal axis 11 so as to be rotatable. The device has two removable and portable racks 12 and 13, equipped with studs 14 and shaped nuts 15. The racks are mounted on angled conductors 16 and 17, which are mounted on the edges of the bed 18. Each of the conductors consists of stops 19, 20 fixed to it and platikov 21, and is also provided with a slit 22, leveling bars 23 and bolt fasteners. Link 1 is associated with grooves 24 of roller bearings 55 and 26, which are mounted on bracket arms 27 and 28. In this case, the middle of grooves 24 of both supports passes in a vertical plane 29 located on the theoretical dialing line to be marked on the casing 30. At one of its ends, the link 1 is fastened on the rack 12 to the hook 31 by means of a loop 32, and the other on the rack 13 to the coil 33 mounted on it. The turn stop can be made in the form of hinged rods having free ends forks. When working on the conductors 16 by means of the stops 19 and 20 and the slits 22, the studs 14 and the nuts 15 of the racks 12 and 13 assembled with link 1 and plumb 3 are fixed and fixed. Holding the shells 11, the stripper is directed downwards at an angle I, to the vertical plane 29, puts the end of the scriber 10 in contact with the casing 30, which is facilitated by the toolkit maintenance kit, which supports the necessary tension of the connection and the spring properties of the latter with the help of the coil 33. Then, the scriber, observing the position of the level 7 bubble and maintaining a fairly light contact between the scriber 10 and the casing, moves the plumb toward the vertical plane 29. At the same time, the axes of the left and right link branches form the edges of the triangle. The perpendicular position of level 7 to the plane of this triangle is provided by the rotation limiter with sufficient tension of the link 1. When the plane of the specified triangle coincides with the vertical plane 29, the edges of the level bubble coincide with the risks applied to the level tube. At this point, on the casing 30, the scriber scriber 10 has a short stroke (you can mark the point with intersecting strokes). Thereafter, the marker has moved (or rearranged) the plumb line to the link for the desired interval and the markup continues in the manner described. The strokes obtained in this way (or points) determine the trace of the entire sought line. The marking of the following lines is performed in the same way after rearranging the pillars 12 and 13 to the next conductors 16 and 17. After the work is finished, the plumb is removed from the connection, the latter is unwound onto the roller 33 and the device is transferred to another working area. After marking, assembling, welding and separating the body section from the bed 18, the latter is brought to readiness for laying the next section, the position of the conductors is checked, and then corrected with the help of strips 23 and bolt fasteners. The proposed device design as compared with the known one has a smaller number of support rollers, one coil, a smaller length and diameter of the flexible connection, a smaller diameter of the coil drum, as well as smaller heights of plumb and pillars and, accordingly, less weight of the entire device.

As a result of the installation of a horizontal hand, the degree of accuracy of the marking increases, since the height of the plumb line

is significantly reduced, and the influence of the worker’s hands (arms) on the deflection of the plumb from the vertical plane 29 is eliminated.

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Claims (1)

DEVICE FOR MARKING A SET OF SHIP BOARD SECTIONS by ed. St. No. 882817, characterized in that, in order to increase the accuracy of the marking, the plumb is equipped with a roller paired with a flexible coupling, and a handle mounted for rotation.