JP3332692B2 - Elevated shear device for sand piles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an up-and-down shearing device used for a sand pile driving boat.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, in a sand pile casting ship, it is common practice to build a shear using a large and large-scale offshore crane ship. That is, the shears 1 are entirely lifted by the lifting blocks 18 using a large and large-scale marine crane ship because of their large weight and very high height, and the shears on the barge 17 are Lower body pin joint 2
a, 2b and shear back stay lower pin joint 3
a, 3b. In this manner, the shears 1 are connected and secured to the barge 17 by the pin joints 2a, 2b, 3a, 3b and built. And
Various devices supported by the shears such as the leader 15 and the casing pipe 16 shown in FIG. 1 are sequentially mounted by using a relatively low-power marine crane or quay crane.

[0003]

However, in recent years, sand pile-casting boats often have to pass under a low bridge girder due to sand pile driving work sections. In the state where it was built on board, the sand piled-in boat could not pass under the bridge girder and could not enter the construction zone. Also, with the shears removed,
Even if a barge alone passes under the bridge girder and then builds a shear, it requires a large and powerful offshore crane ship. However, there is a problem that a large marine crane ship is as tall as a sand-pile caster and cannot pass under a low bridge girder. The present invention seeks to solve the above-described problems, and is a sand-pile type ship-lifting type capable of building shears without the need for a large and large-scale offshore crane ship. It is an object to provide a shear device.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, an up-and-down shearing device for sand pile-casting ships according to the present invention is provided.
A shear consisting of a shear body and a shear back stay separated from each other is provided.A lower portion of the shear body is pivotally mounted on the barge deck by a rotation support portion, and a lower portion of the shear back stay is tied. And a scissor-raising cable attached to the barge deck by a releasable joint and extending from the shear to an upper part of a platform member installed on the barge deck, and a shear at the tip of the barge from the shear. The sheer shackle leading to the shackle sheave is led to the winch near the stern , respectively .
When the platform is in the upright position,
Between the yass body and the shears backstay
It is characterized by being arranged as follows.

[0005] Thus, the joint portion at the lower part of the shear back stay is released, and the entire shear is rotated through the rotary support part at the lower part of the shear body so as to lie down on the deck of the barge. Passing of piled boats becomes possible. After arriving at the sand pile driving section, the shears are pulled up by a winch to wind up the ropes, whereby the shears are built on the deck of the barge. At this time, since the shear stay cable is kept in a tension state, the rotation of the shear can be performed stably and safely. Also this
In the case of the flip-type shearing device for sand piles,
The base member for arranging the stiffeners is provided by
With the above shear body and shear back stay in the state
Equipped between, so effective use of narrow barge deck
Can be In addition, when the sheer falls down on the barge, the sheer staying cable is used as the shear falling cable, and the shear rising wire is used as the shear staying cable.

Further, in the flip-type shearing apparatus for hitting a sand pile according to the present invention, the shear-raising line is a winch near the stern on the deck of the barge via a shear-raising line sheave above the base member. It is characterized by being led to. Thereby, when raising the shears in the lying state and building them on the barge deck, the initial raising moment can be increased, and the work for building the shears can be performed smoothly.

Further, in the up-and-down shearing device for sand pile hitting ship according to the present invention, the shear stay cable is a shear sheave cable sheave at a tip end of the barge and a shear sheave cable lead sheave above the base member. And led to a winch near the stern on the barge deck via the above. As described above, the shear raising line and the shear stay line are guided to the winch on the barge deck via the sheaves at the upper portion of the base member, so that the work area of the worker on the barge deck can be widened. , Work safety can be improved.

[0008] In the up-and-down shearing device for hitting a sand pile according to the present invention, the winch is configured to also serve as a pile winch for elevating and lowering a casing pipe along a leader supported by the shear. Features.
Thereby, the number of required winches can be reduced and cost can be reduced.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a sand pile hitting ship equipped with a sand pile hitting ship according to an embodiment of the present invention.
FIG. 2 is a plan view of the sand pile-casting vessel, FIG. 3 is a front view of the sand pile-casting vessel, FIG. 4 is a side view showing a shearing action of the sand pile-casting vessel, and FIG. It is a top view which shows a sheer back stay and abbreviate | omits about the falling state of a pile driving ship.

As shown in FIGS. 1 to 3, the tops are mutually connected on a barge deck 17a of a barge 17 as a sand pile driving boat.
The lower part of the body 1a is pivoted on the deck 17a by pin joints 2a and 2b as rotating support parts, and a lower part of the body 1 is provided with a body 1a and a backback stay 1b. The lower part of the sheer backstay 1b is attached to the barge deck 17 by pin joints 3a and 3b as joints that can be fixed and released.
a.

A platform member 4 as a pulley platform is installed on the barge deck 17a. From the sheave blocks 8a, 8b at the upper part of the shear body 1a to the sheave blocks 5a, 5b at the upper part of the platform member 4. Equipped with shear shear lines 12a and 12b,
b is a lead sheave 6 in a vertical position on the base member 4.
a, 6b and a pile winch 14 near the stern on a barge deck 17a via a reed sheave 7a, 7b in a horizontal position.
a, 14b. Thus, the base member 4
The shears body 1a and the shears 1
It is arranged so that it exists between the subbuck stay 1b
As a result, the narrow barge deck 17a can be used effectively.
ing.

Further, a shear stay cable extending from a sheave block 10 provided below the sheave blocks 8a and 8b on the shear body 1a to a sheave block 9 at a barge tip 17b in front of the shear body 1a. 13 and the stay cable 13 is further provided with a lead sheave on the base member 4.
Pile winch near stern on barge deck 17a via 11
It is led to 14c.

The shears 1 hold the leader 15, and the casing pipe 16 is moved up and down through a pulley at the top of the leader 15. The pile winch 14a, which is located near the stern for this lifting operation, is provided. 14b and 14c are also used for the operation of the shear raising lines 12a and 12b and the shear staying line 13. That is, in the present embodiment, two winches 14a and 14b of the three pile winches 14a to 14c are respectively shear shear lines 12a and 14b.
The other winch 14c is used for the operation of the shear stay cable 13.

Incidentally, the pin joints 2a, 2
2b and the pin joints 3a and 3b as joints that can be fixed and released may have the same structure. However, the pin joints 2a and 2b are functionally strong and accurate in supporting the rotation of the shears 1. It is desirable to provide a grease nipple and an oil grooved pin for lubricating grease.

Since the up-and-down shearing device for sand piles of this embodiment is constructed as described above, FIG. 4 and FIG.
As shown in the figure, the pin joints 3a and 3b at the lower portion of the shear back stay 1b are released, and the entire shear is rotated via the pin joints 2a and 2b at the lower portion of the shear body 1a to fall on the barge deck 17a. In this state, it is possible to pass through the sand piled barge even under a low bridge girder. Then, after reaching the sand pile driving section, the shears raising lines 12a, 12b are wound up by the pile winches 14a, 14b (see FIG. 2) to build the shears 1 on the barge deck 17a. Done. At that time, the shear stay cable 13 is fed out while being kept in tension by the pile winch 14c, so that the rotation of the shear 1 can be performed stably and safely.

Further, the shear raising lines 12a, 12b are operated via the shear raising rope sheaves 5a, 5b on the upper part of the base member 4 as a pulley base, so that
When raising the lying shears 1 and building them on the barge deck 17a, the initial raising moment can be increased, and the work of building the shears 1 can be performed smoothly. In addition, the shear pull cord 12a,
12b passes through the upper part of the base member 4 and a shear stay 13
By being guided to the pile winch 14c on the barge deck 17a through the shear sheave lead sheave 11 in the upper part of the base member 4, the work area of the worker on the barge deck 17a can be widened. , Work safety can be improved.

Further, by using pile winches 14a, 14b, 14c as winches for operating the shear raising lines 12a, 12b and the shear staying cable 13, the number of required winches can be reduced and cost can be reduced. Can be. After the shears 1 have been built, the shear raising lines 12a and 12b and the shear staying cables 13 are removed from the pile winches 14a to 14c, and the pile hanging winch is wound with a pile hanging rope to be operated. But
Shear pulling ropes 12a, 12b associated with the next shear fall
In consideration of the simplicity of the wiring of the shear stay cable 13, when these cables are removed, an appropriate steel cable or fiber cable is extended as a lead wire, and the end is fixed to an appropriate place.

When the shears 1 are to be overturned on the barge 17, the shear staying cable 13 is used as a shear towing cable, and the shear lifting wires 12a and 12b are used as shear shearing cables. As the operation winch of the shear stay 13, the pile winch 14 c is also used in the above-described embodiment, but as another embodiment, the shear stay 13 is used.
May be provided directly on the barge tip 17b.

[0019]

As described above in detail, the following effects can be obtained by the up-and-down shearing device for sand pile hitting boats of the present invention. (1) The joint at the lower part of the shear back stay is released, and the entire shear is pivoted via the rotating support at the lower part of the shear body and falls down on the barge deck. Is possible. (2) After arriving at the sand pile driving section, the shears are pulled up with a winch and the ropes are wound up to build the shears on the deck of the barge. Is maintained, the rotation of the shear is performed stably and safely. (3) When the sheer is to be overturned on the barge, the shear shedding cable is used as the shear shelter cable, and the shear rising cable is used as the shear sheave cable. (4) When the shear-raising cable is operated through the shear-raising cable sheave on the upper part of the base member, an initial raising occurs when the shearing cable is raised on the deck of the barge and raised on the deck of the barge. The moment can be increased, and the shear building work can be performed smoothly. (5) The work area of the worker on the barge deck by the sheer raising line and the shear stay line being led to the winch near the stern on the barge deck via the sheave at the top of the base member. And work safety can be improved. (6) As a pile winch is also used as a winch for operating the shear raising line and the shear stay line, the required number of winches can be reduced and cost can be reduced. (7) With the Shar's standing, distribute the Sharw raising cable.
The platform member on the barge deck for installation is
Equipped so that it can be located between
So that the narrow barge deck can be used effectively.
You.

[Brief description of the drawings]

FIG. 1 is a side view of a sand pile hitting ship provided with a sand pile hitting / raising type shearing device as a first embodiment of the present invention.

FIG. 2 is a plan view of the sand pile hit ship of FIG.

FIG. 3 is a front view of the sand pile hitting ship shown in FIG. 1;

FIG. 4 is a side view showing a rotation operation of a shear in the sand pile hitting ship of FIG. 1;

FIG. 5 is a plan view showing the sand pile hitting boat of FIG. 4 without a shear back stay.

FIG. 6 is a side view showing an operation state of installing a shear on a conventional sand pile hitting boat.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Shear 1a Shear body 1b Shear back stay 2a, 2b Pin joint as a rotation support part 3a, 3b Pin joint as a joint part which can be fixed and released 4 Base member as a pulley base 5a, 5b Sheave for pulling up a shears・ Blocks 6a, 6b Lead sheave for shear-raising cable (vertical) 7a, 7b Lead sheave for shear-raising cable (horizontal) 8a, 8b Sheave block for shear cable with shear 9 Neat sheave block for shear rope 10 Sheave block for sheave cable with shear 11 Lead sheave for sheave cable 12a, 12b Shear cable 13 Shear cable 14a, 14b, 14c Pile winch 15 Leader 16 Casing pipe 17 Barge 17a Barge deck 17b Barge tip Part 18 Crane ship lifting block

──────────────────────────────────────────────────続 き Continued from the front page (56) References JP-A-56-90793 (JP, A) JP-A 63-112535 (JP, U) JP-A 55-36270 (JP, U) JP-A 60-112 36424 (JP, U) Japanese Utility Model Application 58-63239 (JP, U) Japanese Utility Model Application 57-151443 (JP, U) Japanese Utility Model Application 57-91846 (JP, U) (58) Field surveyed (Int. ⁷ , DB name) B63B 35/00 E02D 13/00 E02D 7/16

Claims (4)

(57) [Claims] Claims: 1. The top portion of a barge deck of a sand pile pier
A shear body comprising a shear body and a shear back stay which are connected to each other and have a lower part separated from each other forward and backward, and the lower part of the shear body is pivotally mounted on the barge deck by a rotation support part, and the shear back is provided. The lower part of the stay is mounted on the barge deck by means of a joint that can be tied and released, and a shear pulling cable extending from the shear to the upper part of the base member installed on the barge deck, and from the shear Shaft stay cable at the tip of the barge
And search ahead Shiyasu leading to over blanking it is, are respectively guided to c <br/> inch aft toward said base member, the Shiyasu
With the shear body and shear back stay above standing
Characterized by being arranged to exist between
An up-and-down shearing device for sand piles. 2. The stern on the barge deck according to claim 1, wherein the shear-raising cable is a shear-raising cable sheave at an upper portion of the platform member. An up- and-down shearing device for hitting sand piles, guided by a winch closer to it. 3. The shearing device according to claim 1, wherein the shear staying cable is a sheave staying cable sheave at a tip of the barge and a shear stay staying at an upper portion of the base member. An up-and-down shearing device for hitting a sand pile, which is guided to a winch near the stern on the barge deck via a cable lead / sheave. 4. The pile shearing apparatus according to claim 1, wherein the winch is a pile for raising and lowering a casing pipe along a leader supported by the shear. An up-and-down shearing device for hitting sand piles, which is configured to also be used as a winch.