JPS5928701B2 - MONKEN support device in pile press-in machine - Google Patents

Description

[Detailed Description of the Invention] The present invention is characterized in that a Monken is disposed below an auger screw drive device which is movably mounted on a leader, and the auger screw connected to the lower end of the auger screw drive device is inserted into a hollow pile. This invention relates to a supporting device for a pile press in a pile press-in machine that excavates the ground using an auger screw and installs piles while appropriately hammering them with a pile.

In conventional pile press-in machines, the Monken is suspended directly from the top of the leader by ropes, wires, etc. of the winding drum device installed on the base of the press-in machine, similar to the auger screw drive device, and when striking the Monken, the winding drum device is suspended directly from the top of the leader. Let Monken fall naturally from a certain height with the rope etc. in a relaxed state,
When lifting the Monken, a rope etc. is wound up to lift the Monken.

However, with such a direct suspension method, when the Monken falls, the impact force applies a load to the winding drum device through the rope, etc., or the syrup that has come off from the sheave, causing damage to the device. there were.

An object of the present invention is to provide a monkey support device capable of eliminating the above-mentioned disadvantages, and one embodiment of the present invention will be described in detail below with reference to the drawings.

Fig. 1 shows the main parts 8 of the pile press-in machine. 3 is an auger screw drive device fixed to this along the guide,
It is slidably mounted on the guide 2 and exposed by a rope of a winding drum device (not shown) installed on the base of the press-fitting machine.

4 is an auger screw, which is detachably connected to the lower part of the drive device 3 and is suspended separately from the drive device 3 by a rope of a winding drum device (not shown) similar to the drive device 3; The lowering cylinder device includes a casing body 5 slidably mounted on the guide 2, a lower cousing 6 disposed below the casing body 5 so as to be slidable in the vertical direction with respect to the body 5, and these casings. It consists of a main body 5 and a hydraulic cylinder 7 interposed between a lower casing 6.

Reference numeral 8 denotes an auger screw connected to a drive shaft (not shown) at the lower end of the auger screw drive device 3, and is inserted through the cylinder device 4 and suspended downward.

Reference numeral 9 denotes a support device 9 which is disposed below the device 4 and detached from the device 8 and fitted onto the auger screw 8 and slidably disposed on the guide 2. Supported by

Reference numeral 11 denotes a cushion receptacle that is slidably mounted on the guide 2 below the Monken Ken 9. Reference numeral 12 represents a stake cap that is connected and fixed to this cushion receptacle, and the upper end of the hollow stake 13 is engaged with this cap 12. It has become.

Next, the supporting device 10 will be explained with reference to FIGS. 1, 3, 4, and 5. A device frame 14 is slidably mounted on the guide 2, and a sheath is attached to the device frame 14. 15
The sheave 15 is suspended by a rope from a winding drum device (not shown) installed on the base of the press-fitting machine in the same way as the drive device 3 or cylinder device 4, and thereby the machine frame 1
4 can be raised and lowered independently.

A horizontal shaft 17 to which one end of the Monkun lifting lever 16 is fixed is mounted on the machine frame 14, and a horizontal shaft 19 to which the center portion of the bell crank-like link 18 is fixed is attached to the shaft 17 of the Monkun lifting lever 16. The central part of the lever 16 for lifting the lever 16 and one end 18b of the bell crank-shaped link 18 are pivotally connected to each other by pins 21 and 22 via the link 20, and the other end 18a of the bell crank-shaped link 18 is pivoted downward. is made so that it can touch the step 30 provided at the bottom of the machine frame 14 when the Monken lifting lever 16 is in a substantially horizontal position (Monkun lifting posture). One end of the lifting posture release lever 23 located approximately parallel to the Monken lifting lever 16 is fixed to the protruding end, and directly above the outer end of this release lever 23 is fixed a lifting position release lever 23 that is positioned in the vertical direction with respect to the machine frame 14. As is clear from FIG. 1, the bushing rod 24 which is slidably supported is connected to the upper ring 25 fixed to the bushing rod 24 and the machine frame 1.
Under normal conditions, the rod 24 is
The rod 24 is held in such a state that its upper end protrudes from the upper end of the machine frame 14 by a certain length, and the lower end of the rod 24 can come into contact with the upper surface of the release lever 23 in a substantially horizontal position.

Now, as shown in FIG. 5, when the bushing rod 24 is pushed down and the release lever 23 is rotated downward from the horizontal position shown by the solid line, the syringe 18 and the link 2 are rotated downward.
0 rotates from the position shown by the solid line to the position shown by the imaginary line, and the Monken lifting lever 16, like the release lever 23, swings downward from the horizontal position.

The latching claw 16 at the tip of this Monken lifting lever 16
a is a hook hooking groove 29 provided vertically in the side wall portion 28 of the adjustable lever 9 when the lever 16 is rotated to a substantially horizontal position;
By engaging with the upper end 29a of the groove 29, by raising the machine frame 14 in this state, the Simonken 9 can be lifted up by further raising the machine frame 14. .

In this way, the Monken lifting lever 16 is in a substantially horizontal position.
Since the lever 16 is to be lifted up by the lever 16, it is necessary to hold the lever 16 horizontally and prevent the tab from rotating downward from the horizontal position to hold the lifting lever 16 in the lifting position. Therefore, link 2
0 and the bell crank-shaped link 18 are connected to the fifth
As shown in the figure, the pin 21 is positioned above the line connecting the horizontal shaft 19, and a stepped portion 30 is provided at the bottom of the machine frame 14 so that the other end 18a of the crank lever 18 can come into contact with it. .

The structure of the links 18 and 20 as described above and the stepped portion 30 at the bottom of the machine frame 14 are collectively referred to as a stopper link mechanism.

In addition, the Monkun lifting lever 16 and the release lever 23
In order to return the horizontal position to the lifting position of the Simon Ken, a projection 31 is provided below the groove 29 in the side wall 28 of the Simon Ken 9, and a release lever is provided on the machine frame 14 side to the extent that it can be engaged with the projection 31. A stopper piece 32 is provided to limit the downward rotation range of 23.

To explain the operation of the above-mentioned support device 10, first, during pile burying work using a pile press-in machine, the auger screw 8 is passed into the hollow pile 13, and this pile 13 is suspended below the support device 10 to remove the upper end of the pile 13. After fitting into the cap 12,
Geo-gascrew 8 by auguscrew drive device 3
is rotated to excavate the ground, and at the same time, the pile 13 is buried while being pushed down by the cylinder device 4 for anti-folding via the support plate 9, the cushion receiver 11, and the cap 12.

At this time, the support device 10 is in a state as shown in FIG.

That is, the machine frame 14 is suspended from above by a rope via the sheep 15, and the upper end of the bushing rod 24, which is biased to a fixed position by the selection spring 21, is located above Itc.
An appropriate distance is maintained between the cylinder device 4 and the casing body 5, and the lever 16 for lifting the lever 16 is in a substantially horizontal position, and its locking claw 15a is located in the middle of the groove 29 on the side of the lever 9. positioned.

When the pile 13 is buried underground to a certain extent, the drive device 3, the cylinder device 4 connected thereto, and the machine frame 14 are pulled up to an appropriate height by the same length using their respective ropes.

As the machine frame 14 is pulled up, the Monken 9 is lifted up by the Monken lifting lever 16.

After pulling up the drive device 3, cylinder device 4, and machine frame 14 to the required height, when only the machine frame 14 is pulled up further,
The upper end 24a of the bushing rod 24 comes into contact with the lower end 5a of the casing body 5 in the cylinder device 4, and is pushed down by the spring 27, whereby the release lever 23 is rotated downward and the bushing rod 24 is lifted up. Turn the lever 16 in the same downward direction, and as a result, this lever 16
The soil lifting claw 16a at the tip comes off from the upper end of the groove 29 of the Monken Ken 9, and the Monken Ken 9 falls naturally, and the cushion receiver 1
1 and the cap 12, the pile 13 is more effectively buried in the ground due to the pounding by the Monken 9.

After the MONKEN 9 is separated from the support device 10 and dropped, the machine frame 14 is attached to the guide 2 by the suspension rope.
As it is lowered along the line, the tip of the release lever 23 hits the protrusion 31 provided on the side wall 28 of the Monken 9.
The release lever 23 is rotated upward from the position shown by the imaginary line in FIG.
and Monken lifting Reno (-16 returns to Monken lifting posture.

The pile 13 is buried by repeating the series of operations described above several times.

Although the above-mentioned embodiment illustrates a pile press-in machine equipped with a cylinder device for anti-folding, the pile press-in machine according to the present invention does not necessarily need to be equipped with such a cylinder device.

Even in those equipped with a cylinder device, the arrangement of this cylinder device is arbitrary.

As explained above, according to the Monken support device of the present invention, the Monken is not directly exposed with a rope or the like as in the past,
It is indirectly supported through this support device, and when hitting the Monken, it can be completely separated from the rope etc. and fall naturally in an independent state, so the impact caused by the hitting of the Monken is reduced. The load is not transmitted to the rope, etc., and therefore there is no inconvenience such as load on the selective hoisting device when the rope, etc. is detached from the sheath, and the pile press-in work can be carried out smoothly and the durability of the pile press-in device can be improved. There is an effect that it can be done.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially sectional side view showing the main parts of a pile press-in machine, and FIG.
3 is a sectional view taken along line 2--m in FIG. 1, FIG. 4 is a perspective view showing the main parts of the support device, and FIG. 5 is a side view showing the main parts of the support device. 1...Leader, 2...Guide, 3.River...August Creu, 8...August Creu, 9...Mon'17,10 ... Monken support device, 13 ... Hollow pile, 14 ...
...Equipment machine frame, 16...Monken lifting lever, 23...Lifting position release lever, 24
...Bush rod, 27...Coil spring, 28...Monken side wall, 29.
...Groove, 29a...Top end of the groove.

Claims (1)

[Claims] 1. A MONKEN is placed below the auger screw drive device which is equipped on the leader so that it can be raised and lowered, and the auger screw connected to the lower end of the drive device is inserted into a hollow pile, and the ground is excavated by the auger screw. At the same time, in the pile press-in support device of the pile press-in device that buries piles while hammering them with a pile at appropriate times, the device frame is suspended by ropes etc. so that the side of the pile can be raised and lowered, and the side wall of the pile is equipped with claws. A hanging groove is provided, and the machine frame pivots a Monkun lifting lever that suspends the Monkken by having a claw at its tip engage with the groove. , - are interlocked and connected to a lifting position release lever via a stopper ring mechanism that holds the 3-wheels in a lifting position. The lower end of the bushing rod, which is held so as to always protrude from the upper end of the machine frame, faces the lower end of the bushing rod, and the upper end of the bushing rod is brought into contact with the abutted part of the auger screw drive device, etc. during striking. 1. A support device for a pile press-in machine, characterized in that the release lever is rotated to a lifting posture release position by pressing down.