JPS62276120A - Operation of multi-purpose working ship - Google Patents

Abstract

PURPOSE:To enhance the operating rate of a multi-purpose working ship by a method in which a freely slewing and tilting crane boom and a lifting equipment are provided, and a holder running on the rails of the deck and a pile leader are also mounted on the working ship. CONSTITUTION:A pile leader 2 housed on the deck is lifted up by a freely tilting and slewing crane boom 1, and the upper part of the leader 2 is fitted into the fitting portion 1a of the boom 1 while supporting the lower end by a mobile holder 6. The catch fork 3 of the leader 2 is coupled with the lower part of the boom 1 in such a way as to enable the leader 2 to be freely regulated in terms of its angle in relation to the boom 1. The pile 11 is lifted up by the crane and helded on the leader 2, and a pile hammer 10 above the leader 2 is operated to drive the pile 11 into the ground. Aimed functions can thus be provided for working ship to obtain a multi-purpose working ship.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a working method for a multi-purpose work boat that performs crane work, grab dredging, piling work, etc. on water.

[Conventional technology]

Crane ships dedicated to crane work on water, dredgers dedicated to grab dredging, and piling ships dedicated to pile driving1 have traditionally been used as work ships in various fields, and these are specialized vessels for each purpose. Although it has sufficient functions, it does not function sufficiently for purposes other than dedicated use. An example of this is shown below.

Figure 3 is a perspective view of the pile driving ship. In the figure, a pile leader 2 is integrally attached to a tower-shaped boom 1, and a pile hammer 10 is attached to the top of the pile leader 2.
is slidably provided. Reference numeral 21 denotes a tower tilting spindle, and by driving this, the tower-shaped boom 1 is tilted up and down in the front and rear directions as shown in FIG. A hammer winch 22 is used to repeatedly raise and lower the pile hammer 10. 23 is the main winch,
It is connected to a main hoisting line 12 provided at the top of a tower-shaped boom 1 for lifting piles. A keeper 20 holds the pile above the pile leader 2 during driving. 24 is a tower frame.

Next, this effect will be explained. FIG. 5 is a plan view showing a state in which the pile driving boat 25 to which the pile hanging sheave at the upper part of the tower is fixed suspends the pile 11 from the pile barge 26.

As shown in the figure, the pile driving vessel 25 directs its bow toward the bail barge 26 as shown by arrow A by anchoring, and further tilts the boom 1 forward as shown in FIG.
and place it on top of pile leader 2. After doing this, the pile driving boat 25 returns to its original position using the anchor ring and drives the pile. This operation is repeated for each pile 11.

Next, FIG. 6 is a plan view showing a pile hanging state in the case of a pile driving boat 27 in which the lifting sheave at the top of the tower can freely change its direction. As shown in the figure, the pile barge 26 is able to come alongside the pile driving vessel 27 and suspend the pile 11 onto the pile driving vessel 27. However, in this case, in order to prevent the pile 11 from hitting the tower, purge z6
It is necessary to pull the pile using the ship's winch through a sheave block attached to the outside of the pile to prevent it from coming into contact with the pile leader, etc.

[Problem that the invention seeks to solve]

Conventional pile driving vessels have the problem of not only requiring a great deal of labor and time to suspend the piles as mentioned above, but also having to keep the pile barge on standby near the pile driving vessel. Ta.

There was also the problem that in order to efficiently suspend the piles, support from a crane ship was required. In addition, although each of these vessels has sufficient functions as a dedicated vessel, they do not have sufficient functions for incidental work for other purposes, so they require support from each other, and they do not have sufficient functions for other purposes. There was a problem that the operating rate was low due to the inability to achieve the desired performance.

[Means for solving problems]

The present invention was made to solve such problems, and includes a lane that can be turned up and down, a boom, and lifting equipment, and a gripping device that can run on a rail provided on the deck. The pile leader with the pile hammer on the top is lifted up while the lower end is supported by the gripping device, the upper end is fitted into the fitting part provided on the crane boom, and then the lower catch fork is attached to the crane boom. The pile is fixed to the lower part of the ship to provide the function of a pile driving vessel, and the pile is then hoisted to the crane boom in the same manner and gripped by the pile leader.Then, the crane boom is rotated and the pile is hoisted out of the ship. To provide a working method for a multi-purpose work boat for driving piles.

[Effect]

A pile leader stored on the deck is lifted by a crane boom that can be raised and rotated, and while the lower end is supported by a movable gripping device, the upper part of the pile leader is fitted into the fitting part of the crane boom and fixed to the shaft. Next, by fixing the catch fork of the pile leader to the lower part of the crane boom, the angle of the pile leader relative to the crane boom can be adjusted freely. Next, the pile is lifted up by a crane in the same manner as the pile leader and held by the pile leader, and then the pile hammer at the top of the pile leader is driven to drive the pile. In this way, they can self-renovate into specialized ships for their respective purposes without having to rely on the support of other ships.

〔Example〕

FIG. 1 is a schematic diagram of an embodiment of the present invention, in which (A) is a side view and (B) is a partial plan view thereof. 1, te, 1 in the figure
2 is the crane boom, and 2 is the fitting part I11 of boom 1 at the top.
The pile leader is connected to the lower part of the boom 1 by a catch fork 3 whose lower part is extendable and can be freely adjusted in angle with the boom 1. Reference numeral 4 designates an A frame which is integrated with the crane base 4a by a strong truss frame and supports the boom 1 by means of a topping wire 13 so as to be able to rise and fall. The crane base 4a is rotatably provided on the crane post 5. In addition, a rail 7 is provided in the longitudinal direction of the ship's center, and a gripping device 6 is provided on the rail 7.
are fitted and can travel freely in the direction of the ship's captain.

Reference numeral 10 denotes a pile hammer disposed on the upper part of the pile leader 2, which is suspended by the main winding line 12. Below the pile hammer 10, a pile 11 is secured via a pile cap lla. It is also gripped by the pile leader 2 by an upper keeper 8 and a lower keeper 9.

Note that 14 is an auxiliary winding line provided at the tip of the crane boom 1.

Next, this effect will be explained. FIGS. 2(A) to 2(I) are state diagrams showing the procedure of pile driving according to the present invention.

(1) First, the main hoisting line 12 extended from the crane boom 1 is placed above the pile leader 2 stored on the deck.
(Fig. 2 (A)).

(2) Then, while winding up the main winding line 12,
The lower end of the pile leader 2 is supported by the gripping device 6 and gradually moved [FIG. 2(B)].

(3) When the pile leader 2 is almost vertical, insert the upper mounting hardware 2a of the pile leader 2 into the receiving hardware 1a of the boom 1, and lock it with the hydraulic pin unit.
Figure 2 (C)].

(4) Next, one point of the catch fork 3 is lifted by the lifting line 3b coming out from a Kuger winch (not shown), the hydraulic line 3C is connected to the hydraulic cylinder 3n of the catch fork 3, and the hydraulic cylinder 3 is 38, and fix the tip of the catch fork 3 and the lower mounting portion 1b of the boom 1 with a connecting shaft [Fig. 2 (D)].

(5) Next, rotate the crane pace 4a, lift the pile 11 by the auxiliary winding line 14 of the boom 1, and transport it to the center of the deck onto the Aro gripping device N6 [Fig. 2 (E
)].

(6) The lower end of the pile 11 is supported by the gripping device 6, and at the same time, the earth part of the pile 11 is suspended from the main winding line 12 [FIG. 2 (F)].

(7) Support the lower end of the pile 11 with the gripping device 6 and lift the pile 11 [Fig. 2 (G)].

(8) Pile 11 with upper keeper 8 and lower keeper
9, the pile leader 2 is gripped, the lower end of the pile leader 2 is contracted, the pile 11 is separated from the gripping device 6, and the gripping device 6 is moved to the normal position [FIG. 2 (H)].

(9) Rotate the crane on the crane post 5, lift the pile 11 out of the bow together with the pile leader 2, and drive the pile. [Figure 2 (■)].

As described above, by driving the ship's crane, it is possible to self-install the crane from a crane-only ship onto a piling ship.

Furthermore, when dredging work is required, efficient grab dredging work can be carried out by suspending the grab from the main winding line 12 of the boom 1 which can be raised and turned freely.

〔Effect of the invention〕

According to the present invention, a pile leader is self-equipped using a crane boom that can be raised and rotated, making it possible to fully function as a pile driving vessel. This solves the problem of conventional multi-purpose work vessels, which were not able to be fully equipped with the functions of crane ships, piling ships, and dredgers. In addition, by being able to self-equip functions that correspond to each purpose, the vessel does not require the support of other vessels and can be used for multiple purposes, which has a great effect on improving the operating rate as a work vessel. I can do it. In addition, when working as a pile driving ship, piles are accumulated on the ship's deck and can be lifted and driven, so there is no need for a crane ship to lift the piles as in the past, and a pile purge equipped with piles is not required. It also eliminates the need for waiting time, which greatly reduces RoE costs.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of an embodiment of the present invention, (A) is a side view, (B) is a plan view, and Figs. 2 (A) to (I) are action explanatory diagrams of an embodiment of the present invention. , Figure 3 is a perspective view of a conventional pile driving ship,
FIG. 4 is a state diagram thereof, and FIGS. 5 and 6 are plan views showing the working state of the conventional example. 1: Crane boom, 2: Pile leader, 3: Catch fork, 4: A frame, 5: Crane post, 6
: Gripping device, 7: Rail, 8, 9: Keeper, 10:
Pile Hammer, 11: Pile. Figure 1 (B) Figure 2 Figure 2

Claims (1)

[Claims] A pile is equipped with a crane boom that can be tilted up and down, and lifting equipment, and a gripping device that can run on a rail provided on the deck, and the lower end of the pile is supported by the gripping device and a pile hammer is attached to the top. The leader is hoisted and its upper end is fitted and fixed to the crane boom, and then the lower catch fork is fixed to the lower part of the crane boom to form a pile driving vessel, and then the lower end of the pile is attached to the gripping device. A working method for a multi-purpose work boat, characterized in that the upper part of the pile is lifted by a crane while being supported, the pile is held by the pile leader, the crane boom is then rotated to lift the pile out of the ship, and the pile is driven in. .