JPS63143196A - Crane device for shipping - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a crane device mounted on a vessel for transporting fresh fish, etc.

[Prior Art] Cranes such as jib cranes that can swivel within a predetermined range are used as equipment for lifting and lowering cargo on ships, etc., but conventional cranes of this type have a swivel angle of at most 360 degrees.
It was degree.

[Problems to be Solved by the Invention] For example, in a fresh fish transport ship that transports farmed yellowtail and the like, the inside of the ship is partitioned into a plurality of water tanks, and fresh fish is stored in each tank. Taking fish in and out of each tank is as follows:
This is done by lifting the fish net with a crane, but conventional cranes had a limited turning range in a horizontal plane, making them difficult to work with and making it impossible to quickly take in and take out fish. there were.

In other words, even in the case of a crane that can swing within a range of 360 degrees from a certain base point, if you try to move the crane located near the maximum swing position to a nearby position outside of its swing range (i.e. near the base point), , it is necessary to make a large turn in the opposite direction, which requires a considerable amount of time and is inconvenient for the work. In particular, if fresh fish are not taken out and put in quickly, the fish that are stacked in the net will be damaged, which is not desirable with conventional cranes.

[Means for Solving the Problems] In order to solve the above problems, the present invention has the following configuration.

That is, the marine crane device according to the present invention is a crane device mounted on a ship such as a fresh fish carrier, and is mounted on a base installed in the center of a storage device such as a water tank provided on the ship in a horizontal plane. a turntable that is rotatable by more than 360 degrees in forward and reverse directions, an arm with a hoisting device that protrudes laterally from a post provided on the turntable, and that rotates the arm up and down. It includes a levitation device and a rotation drive device that rotationally drives the turntable.

[Operation] Since the turntable freely rotates over 360 degrees in forward and reverse directions, fresh fish can be efficiently taken in and out of the aquarium provided around the crane installation part.

[Example] The embodiments shown in the drawings will be described below.

This crane device 1 is installed almost in the center of the deck 3 of a fresh fish carrier 2, and around it is a water tank partitioned into a plurality of areas.
5. ...is provided.

A base 7 of the crane device 1 is fixed to the deck 3, and a ring gear 9 that also serves as a bearing is attached to the top of the base 7 by bolts 8. −・
・It is fixed in place. A support ring 12 fixed to the turntable 10 with bolts 11° is fitted into the inner surface of the ring gear 9, and bearings 13 are provided between the support ring 12 and the ring gear 9. It is provided. That is, the turntable 10 is supported by the base 7 so as to be rotatable in forward and reverse directions within a horizontal plane.

A post 15 is integrally provided on the upper surface of the turntable IO, and an arm 17 is pivotally attached to the upper end of the post 15 via a shaft 18 so as to be freely rotatable up and down.

A rotation drive device 20 for rotationally driving the turntable IO is provided at the end of the turntable 10 on the opposite side to the direction in which the arm 17 protrudes. The rotation drive device 20 includes a hydraulic motor 21, a planetary gear type reduction gear 22, and a small gear 23 that meshes with the tooth portion 9a of the ring gear 9. When the hydraulic motor 21 is operated, the small gear 23 rotates and revolves along the outer periphery of the ring gear 9 that meshes with the small gear 23.
The turntable 10 to which the small gear 23 is attached rotates. If the hydraulic motor 21 is reversed, the turntable 10 will rotate in the opposite direction. Furthermore, there is no limit to the rotation of the turntable 10, and it can be rotated any number of times in the same direction.

A hydraulic cylinder 25 for raising and lowering is provided between the post 15 and the arm 17 as a raising and lowering position for raising and lowering the arm. When this hydraulic cylinder 25 is extended or contracted, the arm 17 rotates up and down about the shaft 18. Also, arm 17
A hoisting winch 27 driven by a hydraulic motor 27a is provided as a lifting device. Hoisting winch 2
The wire rope 28 let out from the pulley 27b of No. 7 passes through a gate-shaped wire guide 29, 29', is hung on a pulley 30 at the tip of the arm, and is suspended from there. A hook 31 is attached to the tip of the wire robe 28.

Hydraulic pipes 33 (a, b, c) connected to an external hydraulic power source (not shown) are provided inside the hollow base 7, and are connected to the upper pipe 3 in the post 15 via a rotary joint 34.
5 (a', b', c'). These piping 33. Rotary joint 3
4 inspection windows 36 are provided. The upper pipe 35 is connected to three control valves 38 (a, b, and c) in the thin part of the cockpit 37 provided at the upper part of the boss 15.

The three control valves are high control valves that can adjust the speed, 38a is a valve for arm super-lowering operation, and 3
8b is a turning operation valve that rotates the turntable;
38c is a winding valve. In addition, for an actual fresh fish transport ship, it is appropriate to have an arm length of 6.5 to 10m, a turning speed of about 3.5 rpm, and a hoisting speed of about 35 m/min, but depending on the size of the ship. The optimum one may be selected depending on the size. 39 in the figure is a mallet for climbing into the cockpit.

When using this crane device 1 to take fresh fish into and out of an aquarium 5°, the net scooping up the fresh fish is hooked onto a hook 31 and transferred. The arm 17 can be freely rotated in the forward and reverse directions by more than 360 degrees in a horizontal plane by the action of the turntable IO, and can also be freely moved up and down by the action of the undulation cylinder 25, so it can be moved from any location to any desired location. This allows fresh fish to be quickly transported to other locations.

Note that if the output of the swing hydraulic motor 21 is small, the seventh
As shown in the figure, two sets of rotary drive devices 20 may be provided, and two small gears 23, 23 may be used to perform the rotation.

[Effects of the Invention] As is clear from the above description, the crane device according to the present invention has a vertically movable arm having a hoisting device that freely rotates over 360 degrees in forward and reverse directions within a horizontal plane. It is now possible to quickly take fish and other fish into and out of surrounding storage devices such as aquariums.

Although this crane device is suitable as a crane device for fresh fish carriers, it is clear that it can be installed and used on other cargo ships and other installation locations.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the installation part of one embodiment of the crane device, Figs. 2 and 3 are plan and side views of the crane device, and Figs. 4 and 5 are parts of the rotary drive device. A plan view and a side view, FIG. 6 is an explanatory diagram of piping, and FIG. 7 is an explanatory diagram of a different embodiment.

Claims (1)

[Claims] (1) A crane device installed on a ship such as a fresh fish carrier, which is installed on a base installed in the center of a storage device such as a water tank installed on the ship, and is mounted on a base that is installed in the center of a storage device such as a water tank installed on the ship. A turntable provided to be largely rotatable, an arm with a hoisting device protruding laterally from a post provided on the turntable, a hoisting device for rotating the arm up and down, and a rotating device for rotating the turntable. A marine crane device comprising a rotary drive device.