JPH0619628Y2 - Traveling equipment for pile driving equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a traveling device of a pile driving device for constructing a foundation of a structure such as an abutment or a bridge.

[Prior Art] FIG. 11 shows an example of a conventional pile driving device used when constructing a foundation such as an abutment. A pile driving ship a is equipped with a turret b and is held along the turret b. The pile c is beaten by the hammer d supported on the turret b to be driven into the ground.

However, in the case of the above-described conventional pile driving device, since the pile driving ship a itself has a structure that is easily affected by weather and marine conditions, it is not possible to perform the pile driving work under bad weather conditions. However, there was a problem that the operation rate of the pile driving ship a was low and the construction period was long.

In order to solve this problem, on the pile already placed,
A wagon (platform), which is a main body of a pile driving device, is placed through a traveling device including a traveling guide and a traveling drive device so that the wagon can be supported on the water surface through the pile, and at the same time, the wagon is driven while driving the pile. In recent years, there has been proposed a structure for advancing the power supply (Japanese Patent Application Laid-Open No. Sho 61-61).
-162629).

[Problems to be solved by the invention] However, in the traveling device of the pile driving device proposed in recent years, since the traveling guide is a wheel system, an excessive load is concentrated on the wheels or the bearings of the wheels during the pile driving. In order to prevent this, it is necessary to provide a wedge that supports the wagon at the time of driving the pile and a jack that raises and lowers the wagon,
The structure is very complicated. Further, since the traveling of the wagon is performed by driving the wheels, it is necessary to equip each traveling guide with a wheel drive motor as a traveling drive device.
Very expensive.

Therefore, the present invention is intended to guide the traveling of the wagon with a simple structure, and to eliminate the need for equipping each traveling guide with a traveling drive device for the wagon.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention bridges a support girder between the piles that face each other on the left and right, and connects the front and rear support girders with a traveling drive girder. A wagon is arranged on the space between the left and right traveling drive girders, and a rail in the front-rear direction attached to the lower part of the wagon is engaged with and guided by a slide unit installed on the support girder. A traveling drive device is provided between the end and the traveling drive girder to apply a moving force to the wagon.

[Operation] When the traveling drive device applies a pushing force to the wagon from the rear, the pushing force causes the wagon to slide forward on the slide unit. At this time, the wagon slides while the lower rail is guided by the slide unit.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 3, 1a is an already-placed pile that has already been driven into the seabed (water bottom), 1b is a pile to be driven from now, and the already-placed pile 1a has at least two rows and each row The already-placed pile 1a is provided so as to face left and right.

The supporting girders 2 are respectively hung between the heads of the already-placed piles 1a, 1a facing each other left and right to hold the left-and-right already-placed piles 1a, 1a, and the above-mentioned supporting girders 2 which can be positioned at the front and rear. ,
Traveling drive girders 3 and 3 extending in the front-rear direction with the space between the two
And the wagons 4 serving as the main body of the pile driving device are mounted on the left and right traveling drive girders 3, 3. At the rear end of the wagon 4, a clamp device 20 for fixing or releasing the position of the traveling drive girder 3 and a movement arranged so as to be interposed between the clamp device 20 and the wagon 4 are mounted. The traveling drive device 5 including the actuator 21 for driving is equipped, and the wagon 4 is driven by the driving of the traveling drive device 5 through the engagement with the slide unit 6 installed as a traveling guide on the support girder 2. To be able to

The crawler crane 8 for suspending and lifting the pile 1b, transporting, and suspending and holding the hammer 7 is mounted on the upper surface of the wagon 4, and the left and right pile holder receiving beams extended from the front end.
The horizontal beam 10 extending in the left-right direction is installed on the 9, 9
A pile holder 11 is provided on the top so as to be movable in the left and right directions.

As shown in FIGS. 4 to 6, the slide unit 6 has a support base 13 mounted on the support girder 2 with bolts 12 or the like.
The front and rear and left and right stoppers 14 on the support base 13 restrict the movement in the front and rear and left and right directions with a required gap S, and the arcuate surface 15 formed on the lower surface allows the swinging in the front and rear direction. And a guide block 16 disposed on the support base 13 so as to be allowed.
Has a cross-sectional shape that receives the rail 18 in the front-rear direction attached to the lower part of the main beam 17 that constitutes the wagon 4, and has a liner 19a for guiding the lower surface of the rail 18 at the inner bottom portion and the rail The liner 19b that guides the side surface of each of the left and right inner side wall portions 16a and 16b is attached. As each of the liners 19a and 19b, a material having a low friction yarn number such as tetrafluoroethylene resin is adopted.

The details of the traveling drive device 5 are as shown in FIG. That is, the clamp device 20 constituting the traveling drive device 5 has the rod 23 'when the pressure oil of the lock portion 22 is discharged.
Is provided with a clamp actuator 23 capable of fixing the position of the clamp actuator 23, and a clamp frame 24 is continuously provided at the rear end of the clamp actuator 23 so that the clamp frame 24 is slidably engaged with the traveling drive girder 3. In addition, in the clamp frame 24, a wedge 25 having a tapered surface 25a having an upward slope on the upper surface and a tapered surface 26a corresponding to the tapered surface 25a on the lower surface is formed in the clamp frame 24.
And so that the wedge 25 contacts the traveling drive girder 3, and
The wedges 26 are arranged so as to be in contact with the upper wall of the clamp frame 24, and the rod 23 'end of the clamp actuator 23 is connected to the front end of the wedge 26. The moving actuator 21 is a clamp frame.
It is interposed between the bracket projecting above 24 and the wagon 4 so that the position of the rod 21 'can be fixed when the pressure oil of the lock portion 27 provided at the end portion on the rod 21' side is discharged. There is.

Next, the operation will be described.

First, as shown in FIGS. 1 and 2, in a state where the front end of the wagon 4 is on the frontmost already-placed pile 1a, 1a, the frontmost already-placed pile 1a, 1a is further Using the crawler crane 8 on the wagon 4, the piles 1b, 1b are driven into the two left and right front positions. The pile 1b, 1b
When the driving is completed, next, the piles 1b, 1b in front of the wagon 4 just driven are set as the already-placed piles 1a, 1a, and the supporting girders 2 are bridged between the heads of the piles 1a, 1a. 2 and the support girder 2 behind it are connected by the left and right traveling drive girders 3,3. Then, the traveling drive device 5 mounted on the rear end of the wagon 4 is driven in a manner described later to drive the wagon 4 to the position of the piles 1a and 1a driven in front of the slides on the support girders 2. The vehicle is moved through the unit 6 and the same work is repeated thereafter. As a result, the wagon 4 can move forward while sliding on the already-placed pile 1a without being affected by waves or the like, and can move forward while placing the pile.

Next, a specific operation of the traveling drive device 5 when the wagon 4 is travelingly moved will be described. As shown in FIG. 7, when the rod 23 'of the clamp actuator 23 is moved forward, the tapered surface 26a of the wedge 26 integral with the rod 23' engages with the tapered surface 25a of the wedge 25. , The wedge 25 is pushed down and presses against the traveling drive girder 3. At this time, the pressure oil of the lock portion 22 of the clamp actuator 23 is discharged to lock the position of the rod 23 ', thereby providing a clamping device.
Twenty positions are fixed. In such a state, pressure oil is put into the lock portion 27 of the moving actuator 21 so that the rod 21 '
After unlocking the vehicle, as shown in FIG. 8, when the moving actuator 21 is extended, this extension force causes the wagon 4 to move.
Moves forward, and the reaction force is received by the clamp device 20.
When the wagon 4 reaches a predetermined position, the extension of the moving actuator 21 is stopped and the pressure oil of the lock portion 27 is discharged, and the position of the rod 21 'is locked. Therefore, the stop position of the wagon 4 is fixedly held. can do. In this case, the movement amount of the wagon 4 can be arbitrarily selected until the extension of the movement actuator 21 reaches the stroke end, and
The selected position is securely mechanically locked by the lock portion 27.

When it is necessary to further advance the wagon 4 after the extension of the moving actuator 21 reaches the stroke end, as shown in FIG. 9, pressure oil is put into the lock portion 22 of the clamp actuator 23 to move the rod 23 '. After unlocking, the rod 23 'is extended to disengage the wedges 26 and 25.
As a result, the clamped state of the clamp device 20 is released. Next, as shown in FIG. 10, the moving actuator 21
When it is contracted in the unlocked state, the contracting force of the moving actuator 21 causes the clamp device 20 to move forward along the traveling drive girder 3 as a whole, and is attracted to the wagon 4 side. After that, as shown in FIG. 7, the wedges 26 and 25 are again formed.
And the position of the clamp device 20 is fixed to the traveling drive girder 3. Therefore, in this state, the wagon 4 is further advanced by extending the moving actuator 21 again.

In this way, the wagon 4 can be sequentially advanced by operating the traveling drive device 5 like a worm.

Further, since the wagon 4 is guided by the slide unit 6, it can be moved smoothly. That is, the wagon 4 is moved by the rail 18 on the lower surface of the main beam 17 sliding on the liners 19a, 19b, 19b of the guide block 16, but at this time, the liners 19a, 19b, 19b have a low friction coefficient. The wagon 4 can slide very smoothly because it is made of the above material, and at this time, the rail 18
Is guided by being engaged with the liners 19a, 19b, 19b, it is possible to prevent the crawler crane 8 on the wagon 4 from toppling over due to runaway or derailment of the wagon 4. Further, since the guide block 16 is allowed to swing in the front-rear direction with respect to the support base 13 by the circular arc surface 15 formed on the lower surface, there is a height level error between the front and rear slide units 6, 6. Even in this case, the liner 19a at the inner bottom portion of the guide block 16 absorbs the above error and surely comes into surface contact with the lower surface of the rail 18, and guides sliding smoothly.

Further, the load on the wagon 4 side is constantly applied to the slide unit 6, but as described above, the liner 19a that is in surface contact with the rail 18 passes through the guide block 16, the support base 13, and the support girder 2. Since it can be surely transmitted to the pile 1a, there is no concern that an excessive load is concentrated even when driving a pile.

In addition, in the above-described embodiment, since the traveling drive girders 3 are provided in two rows on the left and right, two traveling drive devices 5 are also provided. However, the traveling drive girders 3 are arranged in one row, three rows, etc. In the case where the main drive unit 5 is installed in the center, only one traveling drive unit 5 needs to be installed in the center. Further, as shown in FIG. 3, the slide unit 6 is provided at the bottom of each of the two main beams 17 on the left and right sides. Although the case where the main beam 17 is provided on each of the left and right sides and one slide unit 6 is provided under each one of the main beams 17 may be provided, the slide unit 6 may be provided with a rail. Rollers or balls may be installed in the part that receives 18 to make the slidability more reliable. Furthermore, when the slide unit 6 does not return to the same track after the wagon 4 has passed. To remove the rear ones in order It may be set, it is obvious that various changes and modifications may be made without departing from the gist of the other present invention.

[Advantage of the Invention] As described above, according to the traveling device of the pile driving device of the present invention, the rail in the front-rear direction attached to the lower portion of the wagon arranged on the traveling drive girder is used as the slide unit on the support girder. Since the guide is engaged and guided, it is possible to prevent the crane from falling over due to the runaway or derailment of the wagon, and the load on the wagon side to be piled by the surface contact between the rail and the slide unit. Since it can be transmitted to the side, an excessive load is not concentrated even when driving a pile, and the traveling movement of the wagon is performed by an actuator that gives a pushing force from the rear. No need for lifting jacks such as guides, wagon support wedges, etc., and no need to install a motor for each individual running guide. It is possible to achieve excellent effects such as reduction of production cost.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an embodiment of a traveling device for a pile driving device of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a front view of FIG. 1, and FIG. 4 is a slide. FIG. 5 is a cutaway front view showing details of the unit, FIG. 5 is a cutaway side view of FIG. 4, FIG. 6 is a plan view of FIG. 4, and FIGS. 7 to 10 are cutaways showing the mechanism and operation of the traveling drive device. A side view and FIG. 11 are schematic views showing an example of a conventional pile driving device. 1a, 1b …… Pile, 2 …… Supporting girder, 3 …… Running drive girder,
4 ... wagon, 5 ... travel drive device, 6 ... slide unit, 8 ... crawler crane, 13 ... support base, 16 ...
… Guide block, 18 …… Rail, 19a, 19b …… Liner, 20 …… Clamping device, 21 …… Moving actuator.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Toyokazu Sakaki 2-3-2 Uchisaiwaicho, Chiyoda-ku, Tokyo Kawasaki Steel Co., Ltd. Tokyo headquarters (72) Creator Mao Tominaga 2-3-2 Uchisaiwaicho, Chiyoda-ku, Tokyo No. Kawasaki Steel Co., Ltd. Tokyo head office (72) Inventor Mitsuo Sunaga 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Tadashi Okano 2-16-1 Kyobashi, Chuo-ku, Tokyo No. Shimizu Construction Co., Ltd. (72) Inventor Shuichiro Minami 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Creator Ryo Ogi 2-1-2 Ichikawa, Chiba Prefecture 618 (72) Inventor Tsukasa Murakami 3174 Showa-machi, Kanazawa-ku, Yokohama, Kanagawa Ishikawajima Construction Machinery Co., Ltd.Yokohama factory (72) Inventor Toshio Komoriya, 3174, Showa-machi, Kanazawa-ku, Yokohama, Kanagawa Ground stone Kawashima Construction Machinery Co., Ltd. Yokohama in the factory (56) Reference Patent Sho 61-162629 (JP, A) Tokuoyake Akira 53-25401 (JP, B2) real public Akira 59-29091 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A support girder is bridged between right and left piles, and front and rear support girders are connected by a traveling drive girder, and a wagon is arranged above the left and right traveling drive girders. The rail in the front-rear direction attached to the lower part of is engaged with the slide unit installed on the support girder to guide it,
A traveling device for a pile driving device, further comprising a traveling drive device interposed between the rear end of the wagon and the traveling drive girder to apply a moving force to the wagon.