JPH09110400A - Horizontal advance jack device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device that reduces the projecting size of the whole jack device advancing a pushed body, and advances it powerfully in horizontality. SOLUTION: This jack device consists of a jack 3 locked on top of a pushed body 1, a slide mechanism 31 sliding on a top face of the pushed body 1, and another jack 4 coupled with the lower end of a hanging part 32 of a tailend of this slide mechanism 31, respectively. The jack 4 is provided with a catching device 5 holding a rail 63 and forming an advancing reaction mechanism. The slide mechanism 31 keeps its horizontal position without being floated up, and it advances the pushed body 1 horizontally in all cases irrespective of a position of the catching device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a propulsion jack device in which positions for supporting a reaction force are unevenly distributed, and a jack device for horizontally propelling a horizontally propelled object.

[0002]

2. Description of the Related Art For example, when constructing an artificial ground for forming a road, a pier, a plaza, a park, an observatory, a heliport, etc. in the air, and a space for constructing these on the ground cannot be secured, , On the water, on the track, on the road,
Alternatively, in the case of location conditions where construction cranes and the like cannot be approached due to structures on the ground, the manual extension method is often adopted. In the manual extension method, a wagon, etc. is placed on the artificial ground while it is extended, and a crane, a pile driver, and other construction equipment are placed on the wagon, and the artificial ground is created in the forward direction while moving forward. It is a construction method in which it is gradually extended. A wagon used for such a technology is, for example, Jitsuko Sho5.
No. 35178 and Japanese Utility Model Publication No. 6-19628.

FIGS. 13 and 14 show this technique.
The pile driving process of driving a pile 71 in water and constructing a floating structure is shown. The girder 72 is placed on the pile 71 which has already been driven, the propelled body 1 is placed thereon, and the jack 3 is moved forward, and the working machine (pile driving device) 100 is placed on the propelled body 1 and the construction is sequentially performed. To do. 13 shows a side view thereof, and FIG. 14 shows a plan view thereof. In the construction of the artificial ground using such a conventional propelled body 1, the ground top surface level is almost flat.

[0004]

When constructing artificial ground by the above method, heavy equipment such as a crane needs to work on a horizontal workbench. Although a jack device for propelling such a workbench supports a reaction force on an existing structure, the reaction force support portion is not always in a position suitable for horizontal propulsion. In addition, this jack device
It is preferable that the length protruding from the workbench is as short as possible.

The present invention was developed under such circumstances, and an object of the present invention is to provide a device for propelling an object to be propelled, in which the overall size of the jack device is reduced and the structure is strongly propelled horizontally. And

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a first propulsion jack attached to a propelled body and a slide connected to the first propulsion jack for horizontally converting a propulsive force for propelling the propelled body. A horizontal propulsion jack device comprising a mechanism and a second propulsion jack having one end pin-connected to the tail end of the slide mechanism and a fixed catching device provided at the other end.

[0007]

DETAILED DESCRIPTION OF THE INVENTION The apparatus of the present invention will be described in detail below with reference to the drawings. FIG. 5 is an overall side view showing the propulsion of the propelled body 1 using the horizontal propulsion jack device of the embodiment of the present invention, and FIG. 2 is a plan view thereof. Many piya 6
1 shows a case where a girder 62 and a beam 64 are attached on 1 to construct an artificial ground. A rail 63 is attached to the beam 64, a plurality of lifters 2 are mounted on the rail 63, and the driven body 1 is mounted on the lifter 2.
Is placed. The lifter 2 is moved up and down so as to keep the upper surface of the driven body 1 horizontal. The size of such a propelled body is, for example, about 10 to 20 m in width and 30 to 60 m in length.

FIG. 1 is a side view showing a propulsion jack device of an embodiment, in which a pair of right and left is provided at the tail end of a propelled body. Depending on the scale, the driving force of the propulsion jack is 5 on one side.
It ranges from 0 to 100 tons. The propulsion jack device of the embodiment has a first jack 3 whose one end is pin-fixed to the upper surface of the driven body 1, and a slide mechanism 31 which is coupled to the first jack 3 and slides on the upper surface of the driven body. The second jack 4 having one end pin-connected to the tail end of the slide mechanism 31.
It is composed of

The slide mechanism 31 has a hanging portion 32 attached to its tail end, and one end of the second jack is joined to the lower end thereof by a pin 33. The slide mechanism 31 is configured so that the second jack pushes the lower end of the hanging portion 32 to cause the slide mechanism 3 to move.
1 keeps horizontal without floating and effectively uses the force of the second jack horizontally. As shown in FIG. 3, the slide mechanism 31 has a square pipe 34 integrated by welding on a slide plate 36 provided on the driven body 1,
The slide plate 36 is supported vertically and horizontally by a slide holding block 36b fixed to the base plate 36a with bolts, and is movable in the longitudinal direction. The tip of the rod of the first jack 3 is connected to the square pipe 34 by a pin 35.

The second jack 4 has one end pin-connected to the tail end of the slide mechanism, and a catching device 5 at the other end. The catching device 5 holds the rail 63 to form a propulsion reaction force mechanism. The second jack 4 has an acting force inclined with respect to the horizontal traveling direction of the driven body. Furthermore, when the artificial ground has an inclination, an inclination corresponding to this inclination is added. In all cases, regardless of the magnitude of these inclinations, it acts to horizontally propel the driven body 1.

FIG. 2 shows the propulsion jack device in the most extended state, in which the first jack 3 and the second jack 4 are at the maximum extension position, and the propelled body 1 is advanced by the stroke thereof. FIG. 4 shows the details of the catching device 5 at the tail end of the second jack 4, and FIG.
(B) is a rear view. The catching device 5 has the tail end of the second jack 4 connected to the upper side of the frame 51 with a pin 52. On the lower surface of the frame 51, a jaw 55 that comes into contact with the side surface of the head of the rail 63, and the other side surface of the rail 63 that is arranged so as to face the jaw 55 are pushed to cooperate with the jaw 55 to move the catching device to the rail 63. A pressing piece 54 to be clamped,
A pressing jack 53 for pressing the pressing piece 54 is provided. The catching device 5 attaches the rail 63 to this jaw 55.
And the pressing piece 54 serves as a reaction force device for propelling the driven body 1. The push jack 53 includes, for example, three units, and the pushing capacity of one unit is 50 tons.

Conventionally, a jack for propelling a propelled body is provided with a pair of single cylinders at the rear end of the propelled body and, for example, about 10 m is pushed by the propelled jack. In the past, it was necessary to change the propulsion jack three times or more. It is possible to use a long jack to eliminate this refilling, but the jack body (cylinder) becomes large, the operability deteriorates, and the cost increases. In addition, the length of the entire body to be propelled becomes long, which makes it difficult to deal with it during installation. As described above, the propulsion jack of the present invention is provided with the first jack on the upper surface of the propelled body and connects the second jack via the slide mechanism, so that the total stroke is large, while the propelled body is pushed from the propelled body. The size of the protruding part is small and rational.

Specific operation of the device of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. As shown in FIG. 7, the driven body 1 on which the working machine (heavy machinery) 100 is mounted is equipped with a horizontal propulsion jack device, and the rail 6 provided on the beam 64 of the artificial ground.
It is placed on the upper surface of the lifter 3 via a number of lifters 2. FIG.
Indicates the state immediately before the start of the propulsion operation of the propelled body 1.
The height of each of the plurality of lifters 2 is controlled by the control device so that the upper surface of the propelled body 1 becomes horizontal. The catching device 5 holds the rail 63.

The second jack 4 and the first jack 3 of the propulsion jack device are sequentially extended to advance the propelled body 1 as shown in FIG. Then, as shown in FIG. 10, the catching device is removed from the rail 63, and the hoist 7 is lifted to reduce the first jack 3 and the second jack 4, and the catching device 5 is moved forward as shown in FIG. Relocate and lower. As shown in FIG. 13, the catching device 5 is attached to the rail 63, and the next preparation for propelling the driven body is started. The lifter 2 left behind is removed from the rail 63, lifted, and transported to a position in front of the driven body 1,
Install in the next installation position. By repeating the above operation, it is possible to construct the artificial ground by the manual rolling method.

[0015]

According to the present invention, the propelled body can be strongly advanced horizontally without being restricted regardless of the bias of the reaction force supporting position, and the projecting length can be reduced. Therefore, it is widely used and its industrial value is extremely large.

[Brief description of the drawings]

FIG. 1 is a side view of a propelling jack according to an embodiment.

FIG. 2 is a side view of the propulsion jack of the embodiment.

FIG. 3 is a cross-sectional view of a slide mechanism according to an embodiment.

FIG. 4A is a plan view of the catching device according to the embodiment.
(B) It is a front view.

FIG. 5 is an overall side view of a device for constructing an inclined artificial ground according to an embodiment.

FIG. 6 is an overall plan view of an inclined artificial ground constructing apparatus according to an embodiment.

FIG. 7 is a process explanatory diagram of the example.

FIG. 8 is a process explanatory diagram of the example.

FIG. 9 is a process explanatory diagram of the example.

FIG. 10 is a process explanatory diagram of the example.

FIG. 11 is a process explanatory diagram of the example.

FIG. 12 is a process explanatory diagram of the example.

FIG. 13 is an explanatory diagram of a conventional example.

FIG. 14 is an explanatory diagram of a conventional example.

[Explanation of symbols]

1 propelled body 2, 2a lifter 3 jack 4 jack 5 catching device 6 lifting frame 7 hoist 8 control device 31 sliding mechanism 32 hanging part 33, 35 pin 34 square pipe 36 roller 51 frame 52 pin 53 push jack 54 pressing piece 55 jaw 56 Arrow 61 Piya 62 Girder 63 Railroad 64 Beam 65 Clamp 71 Pile 72 Girder 100 Working Machine

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Kashu Shingu 2-3-2 Uchisaiwaicho, Chiyoda-ku, Tokyo Within Kawasaki Steel Works (72) Inventor Fumihiro Ozeki 2-9-7 Ikenohata, Taito-ku, Tokyo Kawatetsu Techno Construction Co., Ltd.

Claims (1)

[Claims] 1. A first propulsion jack attached to a body to be propelled, a slide mechanism connected to the first propulsion jack for horizontally converting a propulsive force for propelling the body to be propelled, and a tail of the slide mechanism. A horizontal propulsion jack device comprising a second propulsion jack having one end pin-connected to the other end and a fixed catching device provided at the other end.