JP2015202923A - Ship crane device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ship crane device by which workability of connection work for a transportation object is enabled.SOLUTION: A ship crane device is equipped with a portal frame 10, and a suspension part 20 connected to a beam part 12 of the portal frame 10. The beam part 12 has a hook part 13, and a first lock pin hole 14 into which a lock pin is inserted. The suspension part 20 has a support pin 24 supported by the hook part 13, and a second lick pin hole 25 which can be matches with the first lock pin hole 14 in the state that the support pin 24 is supported on the hook part 13, and in which the lock pin is inserted. The support pin 24 is supported on the hook part 13 in the state that the portal frame 10 is inclined towards a hull side, the suspension part 20 is rotated around the support pin 24 by a self-weight in association with standing of the portal frame 10, and after the first lock pin hole 14 is matched with the second lock pin hole 25, the lock pin is inserted in the holes, whereby the beam part 12 and the suspension part 20 are connected to each other.

Description

  The present invention relates to an on-board crane apparatus installed on a ship.

  As a crane apparatus installed on a ship, Patent Document 1 discloses a crane including a portal frame that is erected on a ship and a suspension rope that can be rolled up by being suspended from the top of the portal frame. Yes. When installing a heavy gimbal sheave on the top of the portal frame, the gimbal sheave is supported by a pair of guide lines that are stretched from the brackets on the inside of the top of both legs of the portal frame to the anchor on the ship. It is wound up with a suspension rope while being guided.

Japanese Patent Laid-Open No. 10-7385

  In the crane apparatus described in Patent Document 1, when a gimbal sheave as a hanging part capable of hanging a conveyed product is mounted on the upper part of the portal frame, the portal frame is in an upright state, that is, Since the retracted posture is performed in a high state from the deck, work at a high place is required and workability is lowered.

  This invention is made | formed in view of such a technical subject, and it aims at providing the ship crane apparatus which can improve the workability | operativity of the connection work of a conveyed product.

  The present invention relates to an on-board crane apparatus installed on a hull, and includes a gate having a pair of legs rotatably supported by a gantry disposed on the hull and a beam section connecting the pair of legs. A mold frame and a hanging part that is connected to the beam part and can suspend a conveyed product, and the beam part is provided in a hook shape formed in a hook shape and extends along the extending direction of the beam part. A first lock pin hole through which the lock pin is inserted, and the suspension part can be matched with the first lock pin hole with the support pin supported by the hook part and the support pin supported by the hook part And a second lock pin hole through which the lock pin is inserted, and the support pin is supported by the hook portion in a state where the portal frame is tilted to the hull side, and is suspended as the portal frame rises. The lower part rotates about the support pin by its own weight, and the first lock pin hole The lock pin from 2 and the lock pin holes matches and the the suspended portion inserted through by the beam portion is connected, characterized in that.

  According to the present invention, after the support pin of the suspension part is supported by the hook part of the beam part, the suspension part is connected to the beam part simply by rotating the portal frame and inserting the lock pin. . Therefore, when the transported object is suspended by the portal frame, the connection work between the suspended portion and the beam portion is simplified, so that workability can be improved.

It is a side view of the A frame crane concerning the embodiment of the present invention. It is a front view of the A frame crane concerning the embodiment of the present invention. It is an enlarged view which expands and shows the beam part and docking head of A frame crane which concern on embodiment of this invention. It is a side view of the A frame crane which concerns on embodiment of this invention, and is a figure for demonstrating the process of connecting a docking head to a beam part. It is a side view of the A frame crane which concerns on embodiment of this invention, and is a figure for demonstrating the process of connecting a docking head to a beam part. It is a side view of the A frame crane which concerns on embodiment of this invention, and is a figure for demonstrating the process of connecting a docking head to a beam part. It is a side view of the A frame crane which concerns on embodiment of this invention, and is a figure for demonstrating the process of connecting a docking head to a beam part.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a side view of an A frame crane 100 in the present embodiment. FIG. 2 is a front view of the A frame crane 100 in the present embodiment.

  An A-frame crane 100 as an on-board crane device is installed at the stern of a hull 1 such as an ocean research ship, an ocean observation ship, an ocean research ship, etc., and various devices 4 as loaded objects placed on the deck 2 are thrown into the sea. Or the equipment 4 thrown into the sea is lifted and returned to the deck 2.

  The A-frame crane 100 includes a portal frame 10 that is rotatably supported by a gantry 3 that is disposed on the hull 1 and a suspension unit that is coupled to the beam portion 12 of the portal frame 10 and can suspend the device 4. As a docking head 20.

  The portal frame 10 includes a pair of leg portions 11 whose base ends are rotatably supported by the gantry 3, and a beam portion 12 extending in the horizontal direction connecting the distal ends of the pair of leg portions 11. Have. The portal frame 10 is turned upside down by rotating in the front-rear direction of the hull 1 around the base end of the leg 11 by a drive mechanism (not shown). For example, a hydraulic cylinder or the like is used as the drive mechanism.

  As shown in FIG. 1, the portal frame 10 can be rotated from a retracted position tilted toward the bow side to an underwater throwing position tilted toward the sea side so that the legs 11 extend substantially horizontally. The pivotable range of the portal frame 10 is not limited to this, and may be set so as to further rotate to the hull 1 side or the sea side.

  When the portal frame 10 is not used, the portal frame 10 is fixed at the storage position. When the device 4 is thrown into the sea from the deck 2 by the portal frame 10, the docking head 20 is connected to the portal frame 10 in the storage position. Further, the device 4 is fixed to the docking head 20 at a lifting position where the portal frame 10 stands from the storage position.

  Thereafter, the portal frame 10 is rotated to the sea side and raised to the ocean entry position. At the ocean input position, the device 4 is released from the docking head 20. The device 4 is suspended by a rope (not shown) fed out through a sheave 21 provided on the docking head 20.

  FIG. 3 is an enlarged view showing the vicinity of the beam portion 12 of the portal frame 10 and the docking head 20, and shows a state where the portal frame 10 is in the retracted position.

  At the center of the beam portion 12 of the portal frame 10, a hook-shaped hook portion 13 and a lock portion 15 having a first lock pin hole 14 penetrating along the extending direction of the beam portion 12 are provided. It is done.

  The hook portion 13 extends from the beam portion 12 to the hull 1 side and extends toward the opposite side of the leg portion 11, and the receiving port 13 a is formed in a hook shape that opens from the right side to the upper side in FIG. 3. The The lock part 15 is provided on the leg part 11 side of the beam part 12, and the first lock pin hole 14 and the receiving port 13a of the hook part 13 are arranged in a substantially L shape.

  An L-shaped adapter 22 for connecting the docking head 20 and the beam portion 12 is provided on the upper portion of the docking head 20.

  As shown in FIG. 2, a pair of upper extending portions 23 extending upward are formed at one end on the upper side of the adapter 22, and a support pin supported by the hook portion 13 between the pair of upper extending portions 23. 24 is provided. At the other end of the adapter 22, a second lock pin hole 25 having substantially the same diameter as the first lock pin hole 14 of the beam portion 12 is formed. Further, a through hole 26 through which a rope for lifting the docking head 20 is passed is provided in the upper part of the upper extension 23 of the adapter 22.

  Thus, the adapter 22 is formed in an approximately L shape as a whole, and the lock pin 6 (with the first lock pin hole 14 and the second lock pin hole 25 aligned with the support pin 24 supported by the hook portion 13. 1) is inserted through the first lock pin hole 14 and the second lock pin hole 25. The portion of the adapter 22 that contacts the beam portion 12 has a shape along the outer shape of the beam portion 12 extending from the hook portion 13 to the lock portion 15 when the lock pin 6 is inserted.

  Hereinafter, an operation of connecting the docking head 20 to the beam portion 12 of the portal frame 10 will be described.

  As shown in FIG. 4, when the portal frame 10 is in the retracted position, the docking head 20 is suspended by a deck crane (not shown) via the rope 5 passed through the through hole 26 of the adapter 22, and the adapter The support pins 24 of 22 are placed in the receiving port 13a of the hook part 13.

  Subsequently, the rope 5 is removed from the adapter 22 and the portal frame 10 is swung out in the upright direction. As shown in FIG. 5, since the docking head 20 is supported by the hook portion 13 and the support pin 24 is placed on the receiving port 13a, even if the docking head 20 is swung by the wind or the like, the docking head 20 is removed from the hook portion 13. It will not come off.

  As shown in FIG. 6, when the portal frame 10 is in an upright position with respect to the hull 1, the second lock pin hole 25 of the adapter 22 that rotates about the support pin 24 is the first of the beam portion 12. 1 Aligns with the lock pin hole 14. Furthermore, the adapter 22 is in close contact with the beam portion 12 from the hook portion 13 to the first lock pin hole 14. Although the lock pin 6 can be inserted in this state, the adapter 22 may move away from the beam portion 12 due to the fluctuation of the hull 1 or the influence of wind. 6 is not inserted.

  As shown in FIG. 7, when the portal frame 10 is further swung out to the sea side, the adapter 22 is pressed against the beam portion 12 due to the weight of the adapter 22 and the docking head 20. The contact state between the beam portion 12 and the adapter 22 does not change. Therefore, at this time, the lock pin 6 is inserted into the first lock pin hole 14 and the second lock pin hole 25. The insertion of the lock pin 6 may be performed by an operator, or may be performed by an actuator (not shown) provided in advance in the adapter 22 or the beam portion 12.

  With the above operation, the docking head 20 is connected to the beam portion 12.

  Thereafter, as shown in FIG. 1, the portal frame 10 is swung back to the lifting position, and the device 4 is fixed to the lower end of the docking head 20. Subsequently, the portal frame 10 is rotated to the ocean entry position, and the device 4 is released and introduced into the sea.

  Further, by performing the above operations in order from the opposite side, as shown in FIG. 1, the portal frame 10 can be rotated from the underwater loading position to the lifting position, and the offshore equipment 4 can be recovered and locked. The pin 6 can be removed and the docking head 20 can be removed from the beam portion 12.

  The docking head 20 is connected to the adapter 22 via a hinge 28 so that the hull 1 is allowed to swing in the front-rear direction and the left-right direction. The docking head 20 supports the reaction force received by the transported object 4 due to the influence of the rocking of the hull 1 or the wind due to the waves, and controls the position of the transported object 4 to an arbitrary position that does not interfere with the portal frame 10. The horizontal position of the hull 1 of the docking head 20 is controlled by a pair of left and right hydraulic cylinders 29 connected between the side of the docking head 20 and the lower part of the adapter 22 (FIG. 2). The position of the docking head 20 in the front-rear direction of the hull 1 is controlled by a drive mechanism (not shown) such as a rotary actuator.

  According to the above embodiment, there exist the effects shown below.

  In this embodiment, after the support pin 24 of the adapter 22 is supported by the hook portion 13 of the beam portion 12, the docking head 20 can be moved to the beam portion 12 simply by rotating the portal frame 10 and inserting the lock pin 6. Connected to Therefore, when the device 4 is suspended by the portal frame 10, the connection work between the docking head 20 and the beam portion 12 is simplified, so that workability can be improved.

  In particular, when the height of the docking head 20 on the deck 2 is low, or when the docking head 20 is placed on the deck 2 that is one step lower than the part where the gantry 3 is installed, the portal frame 10 is used. Even if tilted to the limit, it is difficult to sufficiently reduce the distance between the beam portion 12 and the docking head 20. Even in such a case, if the docking head 20 is lifted by the deck crane and the support pin 24 of the adapter 22 is supported by the hook portion 13 of the beam portion 12, the subsequent work is simplified. Can be improved.

  Further, when the portal frame 10 is in the upright position, the first lock pin hole 14 and the second lock pin hole 25 are matched, so that the adapter 22 that rotates about the support pin 24 has one surface of the beam portion 12. It becomes possible to insert the lock pin 6 for the first time when it comes into close contact with. Therefore, the beam part 12 and the adapter 22 can be more firmly connected.

  Further, the lock pin 6 is inserted into the first lock pin hole 14 and the second lock pin hole 25 in a state where the portal frame 10 is further tilted from the upright position to the sea side. Thus, the lock pin 6 can be inserted while the adapter 22 is in close contact with the beam portion 12. Accordingly, the first lock pin hole 14 and the second lock pin hole 25 can be prevented from shifting even when affected by the fluctuation of the hull 1 or the wind, so that the lock pin 6 can be reliably inserted in a more stable state. be able to.

  Further, the portion of the adapter 22 that contacts the beam portion 12 has a shape along the outer shape of the beam portion 12 extending from the hook portion 13 to the lock portion 15 when the lock pin 6 is inserted. It is possible to prevent the occurrence of rattling by more securely contacting the portion 12.

  Furthermore, after the beam portion 12 and the docking head 20 are connected, the portal frame 10 is swung back to the lifting position, and the device 4 is suspended from the docking head 20. That is, the beam part 12 and the docking head 20 can be connected by the first rotation of the portal frame 10, and the device 4 can be transported by the second rotation. Therefore, since the connection operation | work of the beam part 12 and the docking head 20 and the conveyance operation | work of the apparatus 4 can be distinguished clearly, each operation | work can be performed more reliably.

  The embodiment of the present invention has been described above. However, the above embodiment is merely one example of application of the present invention, and the technical scope of the present invention is limited to the specific configuration of the above embodiment. Absent.

  For example, in the above embodiment, the case where the A frame crane 100 is installed on the stern is illustrated, but the A frame crane 100 may be installed on the bow, and various devices 4 can be input on the starboard side or the port side. It may be installed as follows.

  Furthermore, in the said embodiment, although A frame crane 100 was illustrated as an onboard crane apparatus, the other crane apparatus provided with the portal frame 10 may be sufficient.

  Further, in the above embodiment, the case where the first lock pin hole 14 and the second lock pin hole 25 are matched when the portal frame 10 is in the upright position is illustrated. You may make it the 1st lock pin hole 14 and the 2nd lock pin hole 25 correspond in the state which inclined to the hull 1 side or the sea side.

  Furthermore, in the above embodiment, the lock pin 6 is inserted into the first lock pin hole 14 and the second lock pin hole 25 with the portal frame 10 tilted further to the sea side from the upright position. When the pin 10 is in the upright position, the lock pin 6 may be inserted.

  Furthermore, in the said embodiment, although the part contact | abutted to the beam part 12 of the adapter 22 has a shape along the external shape of the beam part 12 ranging from the hook part 13 to the lock part 15 when the lock pin 6 is penetrated. As long as the adapter 22 and the beam portion 12 can be reliably connected, other shapes may be used.

  Furthermore, in the above embodiment, the beam portion 12 and the docking head 20 are connected by the first rotation of the portal frame 10 and the device 4 is transported by the second rotation. And the device 4 may be fixed, and the operation of connecting the docking head 20 to the beam portion 12 and the operation of transporting the device 4 may be realized by one rotation of the portal frame 10.

1 Hull 3 Base 4 Equipment (Transported Item)
6 Lock Pin 10 Gate Frame 11 Leg 12 Beam 13 Hook 14 First Lock Pin Hole 20 Docking Head (Hanging Part)
22 Adapter 24 Support pin 25 Second lock pin hole 100 Onboard crane device (A frame crane)

Claims (5)

An onboard crane device installed on the hull,
A gate-type frame having a pair of legs rotatably supported on a pedestal arranged on the hull, and a beam portion connecting the pair of legs;
A hanging part connected to the beam part and capable of hanging a conveyed product;
With
The beam portion includes a hook portion formed in a hook shape, and a first lock pin hole penetrating along the extending direction of the beam portion and through which a lock pin is inserted,
The suspension part includes a support pin supported by the hook part, and a second lock through which the lock pin can be inserted and can be matched with the first lock pin hole in a state where the support pin is supported by the hook part. Pin holes, and
The support pin is supported by the hook portion with the portal frame tilted to the hull side, and the suspension portion rotates around the support pin by its own weight as the portal frame rises. Then, after the first lock pin hole and the second lock pin hole are matched, the lock pin is inserted and the beam portion and the hanging portion are connected.
An onboard crane device characterized by that. The first lock pin hole and the second lock pin hole match when the tilted state of the portal frame is in a range from a state where the tilted state is upright with respect to the hull to a state where it is tilted to the opposite side of the hull. To
The on-board crane device according to claim 1. The lock pin is inserted through the first lock pin hole and the second lock pin hole in a state where the portal frame is tilted to the opposite side to the hull.
The onboard crane apparatus according to claim 1 or 2, wherein the onboard crane apparatus is provided. The support pin and the second lock pin hole are formed in an adapter provided at an upper part of the suspension part,
The portion of the adapter that contacts the beam portion has a shape along the outer shape of the beam portion extending from the hook portion to the first lock pin hole when the lock pin is inserted.
The onboard crane device according to any one of claims 1 to 3, wherein the onboard crane device is characterized. After the beam part and the suspension part are connected, the transport frame is suspended on the suspension part by rotating again to the position where the portal frame is tilted to the hull side,
The onboard crane apparatus according to any one of claims 1 to 4, wherein the onboard crane apparatus is characterized.

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