RU2317914C2 - Device for removal of articles from and attachment of them to ship's hull - Google Patents

Abstract

FIELD: shipbuilding; devices for removal of articles from ship's hull and securing articles to hull.

SUBSTANCE: device has beam secured on ship's hull. L-shaped beam is articulated on wall for turning around vertical axis and moving along it. Fork-type grip for holding the object is articulated at end of horizontal section of beam at vertical position of axis of rotation.

EFFECT: ease of removal and attachment of articles.

5 dwg

Description

The present invention relates to shipbuilding and for the design of devices for removal and attachment of objects on the outer surface of the hull.

Known "ship launching and lifting device", which is an accessory of the vessel (see patent RU No. 2063360, class. B63B 27/04). Such a device, formed in the form of a complex system of levers, arrows, hinges and hydraulic cylinders, is mounted on the vessel by means of a slewing platform. The device has a very complex structure, reduced reliability and can only be used as a ship crane. It can not be used for fastening and removal of objects placed on the bottom of the vessel.

The closest to the claimed technical solution to the claimed technical solution is a "device for fastening objects overboard" (see autoswitch. No. 1643319, class. B63B 27/00). In accordance with the invention, a straight beam is used to hold a deepened object overboard, and the object is mounted at its lower end. Relative to the hull of the vessel, the beam is held rigidly by means of two supports, which cover the beam on a part of its length. Using the lanyard, the beam with the object can be installed at one angle or another to the plane (wall) of the side of the vessel.

The considered device is not intended for removal and fastening of objects on the ship's hull.

The technical problem to which the invention is directed is to develop the design of a device for removing and attaching objects to the hull.

The task is achieved in that the device containing the beam mounted on the wall, in particular on the hull of the vessel, according to the invention is made with an L-shaped beam, which is pivotally mounted on the wall, with the possibility of its rotation around the vertical axis and movement along this axis. In addition, at the end of the horizontal section of the L-shaped beam, a grip is fixed pivotally with a vertical axis of rotation to hold the object.

The invention is illustrated in the drawing.

In Fig. 1, a view is given of the aft end of the vessel with a device fixed on the transom of the hull and a breakout in the area of the propulsion-steering complex ^*) ( ^*) In Figs. 1 and 2 and 3 of the propulsion-steering complex (DRC) contains a propulsive unit, in which the lower part is located outside the ship's hull, and the upper one is in the hull.

The lower part of the propulsion unit includes a screw, a nacelle and an arm that holds the nacelle (see FIGS. 3 and 5). The bracket includes two plates and a pipe in which the propeller shaft passes. The plates and pipe on top are rigidly connected to the disk.

The lower part of the propulsive block of the DRC will be referred to below as the object.

The upper part of the propulsive block is a rotatable capsule (figure 1). To the bottom wall (base) of the capsule, using the parts, a disk of said bracket is attached.

Such a technical solution is known (see application No. 2004134802/11 (037857) of November 29, 2004 for the invention of "shipboard DRC").

Figure 2 presents a section along aa figure 1.

Figure 3 shows a side view of the aft end of the hull with a device holding the object, which was mounted on the hull from the port side.

Figure 4 presents a section along BB-3 of figure 3 (the screw is not shown conditionally).

In Fig. 5, a section is given along BB-B of Fig. 4 (a screw and a nacelle are not conventionally shown).

A device for removing and securing objects on the hull 1 includes an L-shaped beam 2, which is mounted with bearings 3 on the wall 4, for example, on the stern transom of the hull 1 ^**) ( ^**) To carry out the removal and fastening of objects on the hull the vessel, the device in question can be fixed (hung) on the wall of a floating or dry dock, on the wall of the pier, as well as on a special wall (structure). In any case, it must be installed within the reach of the device to be removed or fixed on the ship’s hull).

The vertical section of the beam 2 is connected with the hydraulic cylinder 5, which serves to move the beam 2 along its vertical axis 0-0. At the end of the beam 2, gear 6 is rigidly mounted, which is driven by a gear shaft 7 and engine 8.

At the end of the horizontal section of the beam 2, a fork type 9 grip is pivotally mounted with a vertical axis of rotation 0′-0 ′; it serves to hold the removable or fixed object (figure 3, 4, 5). The rotation of the capture 9 relative to the beam 2 is performed using a gear pair 10 (figure 5).

In this case (example), the fingers 12 are supported by the disk 12, which is rigidly connected to the plates 13 and the pipe 14 located between them (Figs. 4, 5). In the pipe 14 is placed the shaft 15 of the drive of the screw 16. The end of the shaft 15 is made with splines (figure 5).

The object is attached using bolts 17 that connect the disk 12 to the bottom wall of the rotatable capsule 18 (figure 1).

On the lateral surface of the fingers 11, rotary locking plates 19 are fixed. With the rotation of the locking plates 19 in the direction of the gap between the fingers 11, this gap is narrowed and, thus, the pipe 14 is locked between the fingers 11. (The plate drive mechanism -fixers 19 conditionally not shown).

The proposed device is used as follows.

Initially, the beam 2, equipped with a gear 6 and a gripper 9, is mounted using bearings 3 on the wall 4 of the stern transom of the vessel 1 in the lower position in height. (The beam 2 in the lower position in height is shown in figure 3). Then, the hydraulic cylinder 5 is attached to the beam 2, and the gear 6 is engaged with the gear shaft 7. In this state, the device is ready for use.

In the case of removal of the object, the fingers 11 of the capture 9 are inserted between the plates 13 under the disk 12 (Fig.1, 2). This operation is performed by rotating the beam 2 around the 0-0 axis, rotating the grab 9 around the 0′-0 ′ axis, and rotating the object around the 0 ′ ′ - 0 ″ axis.

Then, the gripper 9 is pressed against the disk 12 due to the displacement of the beam 2 upwards using the hydraulic cylinder 5 (Fig.1, 2). In addition, the locking plate 19 is installed in the working position (figure 4).

The force of the vertical pressure of the capture 9 on the disk 12 is brought to the value of the force of the weight of the removed object. In this case, the bolts 17 will not experience load and they are removed (unscrewed). The disconnection of the shaft 15 occurs at the site of its splined pairing with an adjacent link (figure 5).

After disconnecting the object, the beam 2 with the help of the hydraulic cylinder 5 is lowered, and then using the gear shaft 7 and the engine 8 is rotated around the axis 0-0 (Fig.3). The object is inspected and, if necessary, transported (by crane or other means), for example, for subsequent repair.

Claims (1)

A device for removing and securing objects on a ship’s hull, containing a beam fixed to the wall, in particular, on the ship’s hull, characterized in that the beam is L-shaped, pivotally mounted on the wall, with the possibility of rotation around the vertical axis and movement along this axis at the same time, at the end of the horizontal section of the beam, a forks are fixed pivotally to hold the object.

Images