JPH0656079A - Laterally moving device for heavy weight structure between inclined slipway - Google Patents

Abstract

PURPOSE:To improve a device for moving a general assembly block between two inclined slipways. CONSTITUTION:In a device for laterally moving a general assembly block 30 from the first inclined slipway 10A to the second inclined slipway 10B, a plurality of sets of jib cranes 1 are set up in the upper part of a side wall separated from the second inclined slipway 10B of the first inclined slipway 10A, and a multiconnection fixed pulley 2a is set up corresponding to each jib crane 1 by each lift thereof, so that a plurality of laterally moving fixed bases 13 common to both the inclined slipway 10A, 10B are mounted in parallel to each other onto both the inclined slipways. Further, a plurality of laterally moving pulley bases 14 provided with a mounting fixture of a general assembly block 30 are slidably mounted onto each laterally moving fixed base 13, to wind around a towing wire 3 in a multistep condition between the multiconnection fixed pulley 2a and a multiconnection pulley 2b on the general assembly block 30, and by providing a laterally moving guide rail 12 for guiding a roller 21 mounted on the general assembly block 30, slip dropping during lateral moving is prevented to move the general assembly block 30 laterally by the jib crane 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided between two slanted slabs (including horizontal slat) which are arranged adjacent to each other on the stern of a shipyard and have a downward slope toward the ocean. The present invention relates to a device for moving a heavy structure having a weight exceeding the lifting capacity of a crane or the like, such as a fully assembled block, in a direction orthogonal to the longitudinal direction of the stern. In addition to the hull, it can also be applied to a moving device for landing on the beach such as a bridge caisson on land, or a single beaching device for a heavy structure manufactured at a land factory.

[0002]

2. Description of the Related Art Recently, a main portion of a hull is constructed by one of the two inclined sills arranged adjacent to each other, and a part of the hull is constructed by the other sloping sill (engine room or special tank, etc.). It has a weight that exceeds the lifting capacity of existing cranes.)
The ship-building method is adopted in which the ship is built and moved (sideways) to the former slanted platform. An example of a conventional lateral movement device
Describing with reference to 13 to 15, the reference numeral 43 indicates two inclined bases X,
A part of the hull 40 (hereinafter referred to as a “total assembly block”) 40 is shown by way of a pulling device 41 by means of a pulley 41, showing a plurality of laterally-moving fixed bases arranged between Y in a direction orthogonal to the longitudinal direction of each inclined base. (Not shown), on the lateral movement fixed base 43, one tilted base X
It is possible to move laterally from the other side to the other inclined deck Y. 13 to 15, reference numeral 42 denotes a laterally moving pulley attached to the integrated block 40, reference numeral 44 denotes a culvert, and reference numeral 45 denotes a wooden band attached to a side surface of the laterally moving pulley 42.

[0003]

By the way, in the conventional lateral moving device as described above, since there is only one towing device, the posture control during lateral moving cannot be performed. In addition, the oil / fat head is used as a lubricant to reduce the static (moving) friction coefficient, but since the oil / fat head changes considerably depending on load pressure, temperature, load time, etc., the moving resistance center G is a predicted value. When the movement starts, the stern moves earlier and the posture shifts, and the wooden reband 45 attached to the horizontal slide table 42 on the side of the total assembly block 40 during horizontal movement is shown in Fig. 15. In addition, there is a problem that it is destroyed and the total assembly block 40 is largely displaced. An object of the present invention is to provide a lateral moving device for a heavy structure between tilted slabs, which solves such a problem.

[0004]

In order to achieve the above-mentioned object, the lateral structure for moving a heavy structure between tilted slabs of the present invention is provided with a first sloping slab formed in a downward slope toward the ocean. In a device for laterally moving a heavy structure from a second tilted sill that is installed adjacent to a sloping sloping and is formed with a downward slope toward the ocean, an upper side wall of the first sloping sill apart from the second sloping sill A plurality of jib cranes are installed on the side wall, and multiple fixed pulleys, which are driven to rotate for each lift of each of the jib cranes, are installed on the side wall in correspondence with each jib crane, while the above-mentioned first inclined platform and A plurality of laterally movable fixed bases common to the second tilted platform are mounted in parallel with each other on both of the tilted platforms, and a plurality of laterally movable sheaves equipped with a mounting tool for mounting the heavy structure. Is above It is slidably mounted on a fixed base for lateral movement, and the multiple pulleys are attached to the heavy structure so as to face the multiple fixed pulleys. A lateral movement guide rail that is wound around and attached to the heavy structure to guide a roller for preventing slippage during lateral movement of the same heavy structure is provided on the first slanted base and the second slanted base. It is characterized in that it is attached in parallel with the lateral movement fixed base.

[0005]

In the above-described apparatus for lateral movement of heavy structures between inclined slabs of the present invention, since the towing wire is wound in multiple stages between the multiple fixed pulleys and the multiple pulleys on the heavy structure, the existing jib crane is used. The horizontal movement of heavy structures can be performed with. In addition, the roller is brought into rolling contact with the lateral movement guide rail to prevent the heavy structure from sliding in the inclination direction of the inclined platform during the lateral movement. Further, since the heavy structure is laterally moved by simultaneously hoisting a plurality of jib cranes, the posture of the heavy structure is not likely to shift during the lateral movement.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following is a description of a lateral moving device for heavy structures between tilted boats as an embodiment of the present invention with reference to the drawings.
1 is a perspective view showing the entire apparatus, FIG. 2 is a plan view of the same, FIG. 3 is a front view of the same main parts, FIG. 4 is a cross-sectional view showing the relationship between a holding table and a slide table, and FIGS. FIG. 7 is a cross-sectional view showing the relationship between the stationary fixed pulley and the pulling wire, FIG. 7 is a cross-sectional view showing the relationship between the lateral movement guide rail and the roller, FIG.
FIG. 10 is a cross-sectional view showing the relationship between the lateral movement fixing base and the lateral movement sliding base, FIG. 11 is a plan view showing the relationship between the cross portion fixing base and the lateral movement fixing base, and FIG. 12 is a side view of the same.

In FIG. 1, reference numerals 10A and 10B denote two first and second inclined sills which are arranged adjacent to each other and are formed with a downward slope toward the ocean.
The main structure was built on the inclined deck (hereinafter referred to as the "first deck") 10A, and part of the engine room or special tank (hereinafter referred to as "total assembly block 30") was replaced with the second inclined deck (hereinafter referred to as "the Second ship ") 10B was built in advance and this was built on the first ship 10
The hull 31 is constructed by laterally moving to A. Further, in order to carry out the lateral movement of the above-mentioned integrated block 30, the device described below is provided. In FIG. 1, reference numeral 1 indicates a jib crane (two units) arranged on a side wall of the first ship 10A away from the second ship 10B, and each jib crane 1 has a powerful and high-performance electric winch. However, a traction force and a traction speed that can be arbitrarily changed are used as the electric winch.

Reference numeral 2a denotes two multiple fixed pulleys arranged corresponding to each jib crane 1, and each multiple fixed pulley 2a is provided with a multi-stage pulling wire 3 (16 in this embodiment).
It is wound around the tier. That is, the pulling wire-3
Has its tip fixed to the multiple fixed pulley 2a, and as shown in FIG. 1, the multiple fixed pulley 2a and the multiple pulley 2b attached to the bracket 32 attached to the total assembly block 30 (see FIG. 5).
The wire winding reel 6 is wound via the wire clamp brake 4 and the wire drum brake 5, and the other end is wound between the wire clamp brake 4 and the wire drum brake 5. so,
The hook pulley 1a of the jib crane 1 is engaged with the pulley 1b that is suspended via the wire 3a (see FIG. 3), and the pulling wire 3 can be hoisted every lift of the jib crane 1. There is. The wire clamp brake 4, the wire drum brake 5, and the wire take-up reel 6 are all fixed to the bottom 20 of the first tilted platform 10A. Further, the two jib cranes 1 and the multiple fixed pulleys 2a, the towing wire 3, the wire clamp brake 4, the wire drum brake 5, and the wire take-up reel 6 are also installed on the side wall on the front side of the second platform 10B. There is.

A large number of laterally moving fixed bases 13 are fixed at predetermined intervals on the bottom 20 of the second ship 10B, and a laterally moving sliding base 14 is provided on each laterally moving fixed base 13 between the two bases. It is arranged with balls 21 rotatably held by the large tool 21a interposed (see FIGS. 9 and 10). Note that reference numeral 24 in FIG. 10 indicates a rigging screw stretched between the laterally moving slide 14 and the board 25 of the total assembly block. A total assembly block 30 is horizontally mounted on a laterally moving slide 14 via a large number of holding stands 15 and brackets 15a (see FIG. 4).

On the bottom of the first base 10A, the second base 10B
The lateral movement fixed bases 13 are fixedly installed in alignment with the respective lateral movement fixed bases 13 above, and the lateral movement fixed bases 13 on both ship pedestals are connected by the cross portion fixed base 12. The fixed part for the cross section
By constructing 12 separately from the lateral movement fixing base 13, only the cross portion can be easily removed. Furthermore, the guide rail 11 for horizontal movement along the uppermost horizontal movement fixed base 13 is at the bottom of the dock.
A guide roller saddle 23 having a roller 22 rolling on the side surface of the laterally moving guide rail 11 is mounted on the total assembly block 30 (see FIG. 8). It is possible to prevent the assembled block 30 from sliding down during lateral movement.

It should be noted that the jib crane 1 is the second platform 10B.
, Two are also installed on the side wall on the front side in FIG.
And, as with the jib crane 1 on the side of the first platform 10A, the second
Each jib crane 1 on the stool side is also provided with a multiple fixed pulley 2a, a wire clamp brake 4, a wire drum brake 5, and a wire take-up reel 6 (see FIG. 2). Only 6 is described and other members are omitted.

Reference numeral 8 in FIG. 1 denotes a monitor television, and reference numeral 9 denotes a monitor camera installed on the bow and stern of the total assembly block 30. The monitor camera 9 is attached to the lateral movement fixed base 13. The scale of the distance tape and the pointer indicating the center line of the hull can be displayed, and the image of the bow and the image of the stern can be displayed side by side on the same screen of the monitor TV 8. Further, reference numeral 7 indicates an operation control panel of the jib crane 1, and the above-mentioned monitor television 8 is also installed on this operation control panel 7.

In the above structure, in order to move the total assembly block 30 built on the second platform 10B onto the first platform 10A, the electric winches of the two jib cranes 1 on the side of the first platform 10A are operated. To do. That is, the hook pulleys 1a are hoisted by the electric winches of the two jib cranes 1 on the side of the first ship 10A, and the multiple fixed pulleys 2a are rotated to make a total assembly block 30 for each lift (about 40 m). The stand 10
Pull to the A side. In this process, pulling wire 3
Is sequentially wound on multiple pulleys, it is possible to arbitrarily set the moving speed from the minimum speed of 0.5 m / min to the maximum speed of 1.5 m / min by appropriately selecting the number of steps. is there.

Further, since the force is shared by a large number of wires by the multiple pulleys, the force per wire becomes small, and even a wire with a relatively small diameter (for example, 22φ) has a sufficient reserve capacity, so that the elongation of the wire Since the shrinkage is small, the movement of the movement is very small and the movement is smooth. The pulling wire 3 can be smoothly and automatically wound by interlocking with the wire clamp brake 4 or the like that engages with the pulling wire 3. That is, when the "preparation for winding" instruction (hand button) on the operation panel 7 releases the clamp brake of the wire clamp brake 4, the wire drum brake 5 is fixed, and the winding reel 6 is automatically fixed. Made in. And "start winding"
With the instruction (hand button), the winches of the two jib cranes 1 are simultaneously hoisted to the full lifting height.

Next, the wire clamp brake 4 is fixed, the wire drum brake 5 is opened, and the winding reel 6 is wound up in accordance with an instruction for "releasing" preparation. In response to an instruction to start "loosening" of the operation control panel 7, both jib cranes 1 lower one hoist, and the winding reel 6 winds. In addition, it is necessary to perform each of the above operations simultaneously with the two jib cranes 1. A monitor TV 8 is installed on the operation control panel 7 in the jib crane cab, and a monitor camera 9 is installed.
And the scale of the distance tape attached to the movable fixed table 13
By displaying the image of the bow and the image of the stern side by side on the same screen with the pointer indicating the centerline of the hull, the crane man can clearly judge the distance traveled by each other, and the error within 1 cm of each other. You can perform tuning operation with.

Since the balls 21 are provided between the lateral movement fixed base 13 and the lateral movement slide base 14 for the lateral movement of the above-mentioned total assembly block 30, the lateral movement of the total assembly block 30 is smooth. Can be done Further, since the lateral movement guide rails 11 are mounted across both the sills and the rollers 22 rolling on the lateral movement guide rails 11 are attached to the total assembly block 30, the sterns are inclined to the sea side. Nevertheless, there is no possibility that the total assembly block 30 will slide to the sea side when the total assembly block 30 moves laterally. Furthermore, when an earthquake occurs, the winches of the four jib cranes 1 are simultaneously subjected to emergency restraint braking, so
30 can be fixed at 4 places, and it is possible to prevent tilting of the combined block 30 due to an earthquake.

As described above, the apparatus of this embodiment has the following effects. (1) Since the existing jib crane around the platform is used as the traction source, the device can be manufactured at the lowest cost. (2) Since the existing cranes with almost the same specifications are used for the two towing points, it is possible to move the super-heavy object aggregate block accurately and while maintaining the initial posture on the inclined platform. (3) In order to make the moving speed at the time of starting sufficiently slow,
16 pulleys are used, which allows very slow movement (0.5m / min)
Was realized. In addition, since the pulling wire 3 shares the force with 32 wires, the pulling force per wire is small, the expansion and contraction are small, and the crimp can be reduced. (4) Built-in wire clamp brake 4, wire drum brake 5, wire take-up reel 6 operation control panel 7
By starting / stopping each device as planned by the programmable controller, the wire winding can be continuously and automatically performed smoothly. It should be noted that this control may be performed automatically, but each device may be individually operated by a manual push button. (5) In order to allow the conductor and crane operator to immediately judge the moving distance and posture of the hull, a monitor TV 8
By arranging each of them and transmitting a magnified image of the monitor camera 9, the difference between the front and rear ends of the moving distance of the hull center line can be reduced to
It can move with an accuracy of less than cm. (6) The ball 21 is placed between the lateral movement fixed base 13 and the lateral movement slide base 14.
As a result of interposing, the friction during lateral movement can be reduced. (7) Since the lateral movement guide rail 11 is provided and the roller 22 on the total assembly block 30 is brought into rolling contact with this, the total assembly block 30
It is possible to completely prevent slipping during lateral movement. (8) When an earthquake occurs, emergency restraining braking of each winch of the four jib cranes 1 can suppress diagonal displacement of the total assembly block 30.

[0018]

As described in detail above, according to the apparatus for lateral movement of heavy structures between inclined slabs of the present invention, the following effects and advantages can be obtained. (1) Since the existing jib crane can be used, the device can be manufactured at low cost. (2) Since the heavy structure is moved (towed) at a plurality of towing points, the heavy structure can be kept in a normal posture during lateral movement. (3) Rolling contact between the lateral movement guide rail and the roller can prevent the heavy structure from sliding down during lateral movement.

[Brief description of drawings]

FIG. 1 is a perspective view showing a lateral moving device for a heavy structure between inclined stools as an embodiment of the present invention.

[0040]

FIG. 2 is a plan view of the same.

[0041]

FIG. 3 is a front view of the same main part.

[0042]

FIG. 4 is a transverse cross-sectional view showing a relationship between the holding table and a laterally moving slide table.

[0043]

[Figure 5],

FIG. 6 is a cross-sectional view showing the relationship between the multiple fixed pulleys and the pulling wire.

[0044]

FIG. 7 is a cross-sectional view showing the relationship between the lateral movement guide rail and the roller.

[0045]

FIG. 8 is a front view of the same.

[0046]

[Figure 9]

FIG. 10 is a transverse cross-sectional view showing the relationship between the laterally moving fixed base and the laterally moving sliding base.

[0047]

FIG. 11 is a plan view showing the relationship between the cross section fixing base and the lateral movement fixing base.

[0048]

FIG. 12 is a side view of the same.

[0049]

FIG. 13 is a schematic plan view showing a conventional lateral moving device for heavy structures between inclined decks.

[0050]

14 is a cross-sectional view taken along the line B′-B ′ of FIG.

[0051]

15 is a sectional view taken along the line C′-C ′ of FIG.

[0052]

[Explanation of symbols]

 1 Jib Crane 2a Multiple Fixed Pulley 2b Multiple Pulley 3 Pulling Wire 4 Wire Clamp Brake 5 Wire Drum Brake 6 Wire Take-up Reel 7 Driving Control Panel 8 Monitor TV 9 Monitor Camera 10A 1st Inclined Slip 10B 2nd Sloped Slip 11 Horizontal Movement guide rail 12 Cross fixed base 13 Horizontal movement fixed base 14 Lateral movement sliding base 15 Holding base 20 Dock bottom 21 Ball 22 Roller 30 Integrated block 31 Hull 32 Bracket

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Katsuhiro Takashita 6-16-1, Hinoshima Enoura-cho, Shimonoseki City Mitsubishi Heavy Industries, Ltd. Shimonoseki Shipyard (72) Inventor Masafumi Takashita 6-6-1, Hinoshima Enoura-cho, Shimonoseki City No. 1 Mitsubishi Heavy Industries, Ltd. Shimonoseki Shipyard (72) Inventor Akio Takeshita 6-16-16 Hikoshima Enoura-cho, Shimonoseki City No. 1 Mitsubishi Heavy Industries Ltd. Shimonoseki Shipyard (72) Inventor Taisuke Matsuura 6--16, Hinoshima Enoura Town, Shimonoseki City No. 1 Mitsubishi Heavy Industries Ltd. Shimonoseki Shipyard

Claims (1)

[Claims] 1. A heavy structure from a second sloping deck that is installed adjacent to the first sloping deck and is formed with a downward slope toward the ocean on a first sloping deck that is formed with a downward slope toward the ocean. In the device for laterally moving, a plurality of jib cranes installed on the upper part of the side wall of the first slanted sill apart from the second slanted sill are provided, and the side wall is rotatably driven for each lift of each jib crane. Multiple fixed pulleys are installed corresponding to each jib crane, while a plurality of laterally movable fixed bases common to the first and second inclined slides are mounted parallel to each other on the inclined slides. In addition, a plurality of laterally moving pulley blocks equipped with a mounting tool for mounting the heavy structure is slidably mounted on each of the laterally moving fixed tables, and is opposed to the multiple fixed pulleys. Many for heavy structures A continuous pulley is attached, and a pulling wire is wound in a multi-step manner between the opposing pulleys. The puller wire is attached to the heavy structure to prevent the heavy structure from sliding down during lateral movement. A lateral movement guide rail capable of guiding the horizontal movement is mounted on the first inclined base and the second inclined base in parallel with the lateral movement fixed base. apparatus.