JPS6133076Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a pile press-in and pull-out machine, in particular a clamp that grips piles built parallel to the ground as a reaction force anchor for pile press-fit and pull-out, and a clamp that holds the piles parallel to each other between the clamp and the pile. The present invention relates to a pile press-in and pull-out machine that is capable of relative movement of piles in the building direction over parallel pitches and relative vertical movement by hydraulic drive, and includes a chuck as a component for grasping press-fitted and pulled piles.

Such pile press-in and pull-out machines are conventionally known, and when press-fitting and pulling out piles, the earth can be used as a reaction force against pile press-in and pull-out by gripping the existing pile with a clamp, and an extremely large reaction force can be generated. By combining the relative vertical movement between the clamp and the chuck as well as the relative movement in the parallel direction of the piles, the pile is press-fitted onto the parallel structure of the piles that have been built, and the puller is moved to create a new pile. It can be moved by itself in the required direction for subsequent press-in or pull-out construction, and pile press-in and pull-out construction in water areas such as rivers and ports can be easily performed without the need for scaffolding such as stages or built islands.

However, in conventional pile press-fitting and pulling machines of this type, in order to guide the vertical movement required for the clamp and chuck, a slide base that is mounted on a saddle with a clamp and can move in the direction of parallel pile construction is used. A rotating platform is mounted, a mast with a fixed guide rail extending vertically is erected thereon, a sliding shoe is provided on the elevating body of the chuck for grasping press-fitted and pulled-out piles, and this is attached to the guide rail on the mast. Pile press-fitting is dependent on the guide structure formed by fitting, and a hydraulic cylinder/plunger device for relative vertical movement between the clamp and chuck is placed above the slide base. , the height of the drawing machine could not be made too low, and the press force of the lowest one was 60 tons.
In the case of a pile press-in/pulling machine with a regular pulling force of 60 tons, a maximum of 80 tons, and a chuck stroke of 50 cm, the maximum was about 2.2 m.

Therefore, the object of the present invention is to provide a pile press-in and pull-out machine of the type described above whose height can be considerably reduced compared to conventional machines.

To explain the drawings, the pile press-in and pull-out machine of the present invention moves a clamp 1 that grips piles (not shown) built in parallel on the ground in a direction transverse to the parallel erection direction of the piles, that is, in the lateral direction (first direction). A vertical feed machine is provided between the saddle 2 and the saddle 2, which is movable upward in FIG. 3, and the vertical feed plate 3 is equipped with an elevating body 4 that can move up and down relative to the combination of the vertical feed plate 3 and the saddle 2 by hydraulic drive,
Press fit into the elevating body 4 and pull out pile (not shown)
A chuck 5 for gripping is provided adjacent to the clamp 1 so as to move up and down integrally with the elevating body 4, and a sliding guide groove 6 extending in the vertical direction is provided in the vertical feed plate 3.
A sliding bar 7 that is fitted into the sliding guide groove 6 and located lower than the upper end of the vertical feed plate 3 with the elevating member 4 lowered is fixed to the elevating member 4, and the relative position of the elevating member 4 is fixed. It is characterized in that a hydraulic cylinder/plunger device 8 for vertical movement is arranged below the elevating body 4. In the figure, reference numeral 9 denotes a hydraulic cylinder/plunger device for moving the clamp 1 laterally with respect to the saddle 2, one end of which is attached to the saddle 2.
The other end is connected to the main body 1a of the clamp 1.

Since the present invention has the above structure, the clamp 1
a saddle 2 equipped with a vertical feeder 3 on the saddle 2;
The pile press-fit necessary for the chuck 5 is achieved by hydraulically driven relative vertical movement between the combination body and the lifting body 4.
A pulling operation is obtained, and the combination of this relative vertical movement and the relative movement in the pile parallel building direction between the combination of the vertical feeder 3 and the elevating body 4 and the saddle 2,
The pile press-in and pull-out machine, which is necessary for the subsequent press-in or pull-out of new piles, moves by itself on the pile parallel body.

The guide necessary for the above-mentioned relative vertical movement is a sliding guide groove 6 formed on the vertical feeder 3, and is fitted into the sliding guide groove 6 and fixed to the elevating body 4, and the elevating body 4 is lowered. The sliding bar 7 located lower than the upper end of the vertical feed plate 3 is in the upright position, and the above-mentioned relative vertical movement is performed by a hydraulic cylinder/plunger device 8 disposed below the elevating body 4.

That is, according to the present invention, the vertical movement guide structure and the vertical drive machine, that is, the hydraulic cylinder plunger device 8, of the lifting body 4 of the chuck 5 are configured to be substantially sunken relative to the lifting body 4, and the pile press-fitting is performed. ,
Pulling work will be carried out, so the pile will be press-fitted with the lifting body 4 lowered, and the height of the whole pulling machine will be within the vertical dimensions of the combination of the clamp 1, saddle 2, and vertical feeder 3. be able to. Moreover, in the present invention, since the clamp 1 and the saddle 2 are relatively movable in the horizontal direction, the center ring of the chuck 5, in other words, the center ring during construction of the press-fit pile that is gripped by the chuck 5, is moved to the vertical feeder 3. Clamp 1 without adding a cross feeder
This can be done by lateral movement of saddle 2 against
In other words, the pile press-in and pull-out machine can be made short without a cross-feeding machine. Specifically, in the case of a machine with the same specifications as the pressing force, pulling force, and chuck stroke described above, the total height can be reduced to approximately 1 m, which is less than half the height of the conventional machine.

The reason why this invention was able to reduce the height in this way is that
As long as the pile is shortened to the appropriate length,
This means that it is possible to press in and pull out piles under low elevated tracks, under bridges, under power transmission cables, under telephone cables, etc., which was impossible with conventional machines.

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention;
The figure is a right side view, FIG. 3 is a left side view, FIG. 4 is a plan view, and FIG. 5 is a bottom view. 1 is a clamp, 2 is a saddle, 3 is a vertical feeder, 4
5 is a lifting body, 5 is a chuck, 6 is a sliding guide groove, 7 is a sliding bar, and 8 is a hydraulic cylinder/plunger device.

Claims (1)

[Scope of utility model registration request] A saddle is provided with a clamp that grips piles built in parallel on the ground so as to be movable in a direction transverse to the direction in which the piles are built in parallel; A vertical feed board capable of the above relative movement is mounted, and the vertical feed board is equipped with an elevating body capable of relative vertical movement between the vertical feed plate and the saddle combination by hydraulic drive, and the elevating body A chuck for gripping the pile is installed adjacent to the above-mentioned clamp so as to move up and down integrally with the elevating body, a sliding guide groove extending in the vertical direction is provided on the vertical feeder, and a chuck for gripping the pile is installed on the elevating body. A hydraulic cylinder/plunger that is fitted into a movement guide groove and that fixes a sliding bar located lower than the top end of the vertical feed plate when the elevating body is lowered, and allows the elevating body to move up and down relative to each other. A pile press-in and pull-out machine with a device placed below the lifting body.