JPH0748793Y2 - Foundation making device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Use The present invention relates to a foundation preparation device for attaching auger to an arm tip of an articulated arm and vertically elevating and lowering the auger by microcomputer control to excavate a vertical hole in the ground.

(B) Conventional technology In the leaderless basic creation device that has recently appeared, which controls a multi-joint arm mounted on a rotating machine stand to vertically raise and lower the auger at the arm tip,
A lateral deflection pin that swings the auger B to the left and right with respect to the arm undulation surface by connecting the connecting portion for connecting the 6a and the auger machine
A free joint or a joint similar to this is used, which is configured through a vertical swing pin 15b that swings 15a and the auger in the front-rear direction. In this conventional example, when the auger B is attached and detached by lowering the arm tip, For example, as shown in FIG. 4, since there is an adjacent boundary line L, the lower end of the auger B is placed on the ground, and the multi-joint arm A is rotated while being lowered by the rotating machine base 2, and the auger B is tilted obliquely. In this case, since it is difficult for the auger B to rotate about its own axis with respect to the multi-joint arm A, the auger B cannot be tilted directly with respect to the arm. Also, in excavation work, when you want to move the auger lower end with the steady rest and move it a little, and later operate the arm A to reassemble the auger, the lateral swing pin 15a,
Although it can move to the left and right and back and forth around the vertical run-in 15b,
It was not possible to move diagonally directly. For example, the lower end of the auger had to be moved diagonally by a two-step movement of first moving vertically and then moving horizontally.

(C) Problems to be solved by the present invention The present invention has been made in view of the problems of the conventional example,
An object of the present invention is to obtain a foundation preparation device that can smoothly tilt the auger B in any direction when swinging the lower end of the auger during excavation, lowering the multi-joint arm and tilting the auger B to attach and detach the auger.

D. Means for Solving the Problems As shown in FIGS. 1 to 3, the present invention mounts a multi-joint arm A on a rotating machine base 2 on a crawler 1 and connects it to an arm tip 6a by microcomputer control. In a leaderless-type foundation creating apparatus that vertically elevates and lowers an auger B to vertically excavate a vertical hole, a lateral swing pin 15a that swings the auger B left and right with respect to an arm undulation surface and a vertical swing that swings the auger forward and backward. The cross pin 15 composed of the swing pin 15b is pivotally supported by the upper and lower bifurcated pieces 12 and 13, respectively, and the main body 12a of the upper bifurcated piece 12 and the arm tip.
A shaft support piece 19 pivotally attached to 6a so as to be swingable in the up-and-down direction of the arm.
Is connected via a hanging pivotal attachment portion 16 rotatable about a hanging axis, and a lower bifurcated piece 13 is provided on the auger machine 11 side.
A foundation preparation comprising a rotation stopping device D for stopping mutual rotation between the pivotally attached portion 16 and the shaft support piece 19, and a bending prevention device E for preventing mutual bending between the upper and lower fork pieces 12 and 13. It is a device.

In FIG. 2, when the lower end of the auger is swung to the left or right with respect to the articulated arm A, the lateral swing pin 15a serves as an axis, and when the lower end is swung back and forth, the vertical swing pin 15b serves as an axis. If the lower end is shaken diagonally (Fig. 4), it cannot be moved only by the pins 15a and 15b, but the stop pin 20 is lowered to remove the tip 20b from the through hole 21, and the bending prevention device E is further moved. Pull the locking pin 28 to remove the tip 28b from the ear canal 29, and
Since it is provided from the hanging pivot portion 16 between the arm 2 and the shaft supporting piece 19 on the arm side of the facing member, it is the same as the universal joint C formed by the pins 15a, 15b and the like being provided between the rotating shafts. In principle, as the lower end of the auger moves diagonally, rotation occurs at the pivotally attached portion 16 and the auger is directly bent obliquely. Therefore, after the lower ends of the augers have been moved, the arm A can be operated to reposition the auger B to adjust the position. Here, raise the stop pin 20 to the tip 20b.
Of the eight through holes 21 into the closest through hole. By doing so, inertial rotation of the auger machine 11 with respect to the arm A can be prevented, and only the auger can be rotated for excavation. Further, when the auger B is tilted without moving the crawler 1, as long as the auger B does not hit the chlora 1, the articulated arm A is simply rotated to extend and retract, and due to the same universal joint principle as described above, the diagonal joint is of course possible. You can freely tilt the auger in all directions and attach or detach the auger on the ground.

Such attachment / detachment is not limited to the auger, but is also performed on other long working tools related to excavation.

F. Embodiment An embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 1 denotes a crawler having a rotating machine base 2 on an upper portion thereof, and a multi-joint arm A is pivotally attached to a front portion of the rotating machine base 2 with a lateral pin. The multi-joint arm A is composed of a first arm 3, a second arm 4, a third arm 5, and a fourth arm 6 in order from the bottom. Each member 2 and 3,
Hydraulic cylinders 7 and 4, appropriately placed between 3 and 4, 4 and 5, 5 and 6.
Each arm of 8,9,10 is undulated by microcomputer control,
Arm tip 6a of articulated arm A located at the tip of the arm
Moves up and down vertically. Therefore, the auger B connected to the arm tip 6a vertically moves up and down to dig a vertical hole in the ground. A connecting structure of the auger B to the arm tip 6a of the auger machine 11 is shown in FIGS. C is a universal joint, upper fork piece 12
The main body (12a) is connected to a shaft support piece (19) which is suspended by a suspension pin (14) at the arm tip (6a) via a suspension pivotal attachment portion (16). Reference numeral 16a is a rotation pin hung from the shaft support piece 19 so that the shaft center thereof coincides with that of the auger B and the main body 12a of the upper fork piece 12a.
The head portion 16b is inserted into the shaft hole 17 and is housed in the main body 12a via the thrust bearing 18. The gap between the main body 12a and the shaft support frame 19 is small enough not to interfere with each other's rotation. 13 is a lower bifurcated piece, and a cross pin 15 is pivotally attached to the upper bifurcated piece 12. Among them, a pin having a right angle relationship with the hanging pin 14 swings laterally to the arm undulation surface. The lateral deflection pin 15a to be moved, and the pin orthogonal to the pin 15a is a vertical deflection pin 15b to pivot the auger B in parallel with the arm undulation surface, that is, in the vertical direction. D is attached to the arm tip 6a (free joint C
(2) is a rotation stopping device that blocks inertial rotation of the auger machine 11 against it. In this device, a collar part is provided around the shaft support frame 19.
19a every 45 degrees, front and rear, right and left, and 8 along the circumference S between them.
, Through which two through holes 21, 21 ... Are bored, two upper and lower ear hole portions 22 and 23 having the same axial center are projected on the side of the main body 12a of the upper bifurcated piece 12, and a flange 20a is provided in the middle. When the collar 20a of the pin 20 is placed under the ear hole 22 and the coil spring 24 is compression-inserted between the collar 20a and the ear hole 23 to urge the retaining pin 20 upward, the upper end 20b of the retaining pin 20 is A shaft support piece of the auger machine 11 (auger B) that is fitted into any of the through holes 21 and is used to pull out the rope 26 at the lower end of the stop pin to make the upper end 20b of the pin escape from the through hole 21.
It becomes possible to rotate with respect to 19 (multi-joint arm A). E is a bending prevention device that stops the V-shaped bending that occurs between the universal joint C and the auger machine 11 during excavation. A stop pin 28 having a collar 28a in the middle is provided on the side of the upper bifurcated piece, and one on the lower side. Two pieces are applied to the side portions of the main body 27 of the fork piece, and the collar 28a is inserted into the ear hole portions 29, 30 and 31 which are projected so as to coincide with the axial center, respectively. Coil spring 3 between parts 31
2 is compression-inserted and the stop pin 28 is urged upward. When the cord 32 at the bottom end of the stop pin is pulled to make the top end 28a of the pin escape from the ear hole 29, the universal joint C becomes free, You can defeat Ogre B. By providing a part corresponding to the above-mentioned suspension pivot 16 also on the main body 27 of the lower bifurcated piece, the smoothness of the universal joint C is increased and the auger B is more easily fallen. In this case, if two ear canal portions 30 are provided and a pivotal attachment portion is provided between them, one stop pin 28 can stop rotation and prevent bending.

The effect of the present invention The present invention has a cross pin 15 composed of a horizontal swing pin 15a for swinging the auger B left and right with respect to the arm undulation surface and a vertical swing pin 15b for swinging the auger in the front-back direction. A shaft 12 is rotatably supported by the pieces 12 and 13 and is pivotally attached to the main body 12a of the upper bifurcated piece 12 and the arm tip 6a so as to be swingable in the arm up-and-down direction.
Are connected to each other via a hanging pivotally connecting portion 16 rotatable about a hanging shaft center, a lower bifurcated piece 13 is provided on the auger machine 11 side, and mutual rotation between the pivotally connecting portion 16 and the shaft supporting piece 19 is performed. Since the rotation stopping device D for stopping the rotation and the bending prevention device E for preventing mutual bending between the upper and lower fork pieces 12 and 13 are provided, the rotation stopping device D and the bending prevention device E are in the release mode. With this, the lower end of the auger B as assembled with respect to the multi-joint arm A can be moved in all directions to quickly correct the standing direction and the drilling position, and the entire auger can be tilted in an oblique direction. As a result, the auger can be installed and removed efficiently in a narrow overflow site where it cannot enter the adjacent land.
When the bending prevention device E is set to the bending prevention mode, it does not unnecessarily bend in a V shape between the upper and lower bifurcated pieces 12 and 13 during excavation and does not hinder the excavation.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a partially cutaway enlarged side view of the essential part of the same, FIG. 3 is a sectional view taken along line XX of the same, and FIG. And FIG. 5 is a partial side view of the conventional example. In the figure, A ... Articulated arm, B ... Auger, C ... Universal joint, D ... Rotation stop device, E ... Bending prevention device, S ...
… One circle, 7 …… Arm tip, 11 …… Ogre machine,
12 …… Upper fork piece, 12a …… Main body, 13 …… Lower fork piece, 15…
… Cross pin, 15a …… Horizontal shake pin, 15b …… Vertical shake pin,
16: Hanging pivot, 20: Stop pin, 21: Through hole,
27 …… Main body, 28 …… Stop pin

Claims (1)

[Scope of utility model registration request] 1. A leaderless for drilling a vertical hole by mounting a multi-joint arm (A) on a rotating machine stand (2) and vertically moving an auger (B) connected to an arm tip (6a) by microcomputer control. In a mold foundation producing apparatus, a cross pin (15) including a lateral swing pin (15a) for swinging the auger (B) left and right with respect to the arm undulation surface and a vertical swing pin (15b) for swinging the auger forward and backward. ), Upper and lower bifurcated pieces (12,13)
And the main body (12a) of the upper bifurcated piece (12) and the pivotal piece (pivotally attached to the arm tip (6a) via the suspension pin (14) so as to be swingable in the arm up-and-down direction. 19) and a hanging pivot (1) that can be horizontally rotated by a vertical rotating pin (16a).
6), a lower fork piece (13) is provided on the auger machine (11) side, and a rotation stopping device for stopping mutual rotation between the upper fork piece (12) and the shaft support piece (19). (D) is provided, and further a bending prevention device (E) is provided between the upper and lower fork pieces (12, 13) to prevent mutual bending.