JPS60112918A - Sand pile forming device - Google Patents

Abstract

PURPOSE:To improve a sand falling-down effect and a sand compacting effect, by a method wherein a horizontal vibrator is supported to the lower end of a hollow tube through a spherical or a curved surface retainer means, and the vibrator is conically vibrated through disconnection of the hollow tube from the vibrator. CONSTITUTION:After, with an exciter 2 actuated, a hollow tube 1 is dirven into a ground, sand is charged in the hollow tube 1 through a sand charging port 3. Therefore, when the hollow tube 1 is gradually pulled off as a horizontal vibrator 6 is vibrated, the vibrator 6, supported by a spherical or curved surface retainer means 7, is conically vibrated, a casing 60 and a vibrating vane 63 are vibrated, the sand in the hollow tube 1 is discharged in the ground through a drain port 4, and simultaneously, the sand is compacted.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sand pile building device, and more particularly to a sand pile building device in which a horizontal camera is extended downward from the lower end of a hollow tube.

Conventional sand pile construction equipment of this kind, as typified by the sand pile construction equipment described in Japanese Patent Publication No. 56-569, has a plurality of plate-shaped supports placed inward from the lower end of a hollow pipe, and the plate An electric motor is attached to a shaped support via anti-vibration rubber, a vibrating tube is fixed to the electric motor and extends downward, an eccentric shaft is supported within the vibrating tube, and the eccentric shaft and the electric motor are linked. It is. Next, the operation will be explained. First, a hollow tube is penetrated into the ground to a required depth, sand is poured into the hollow tube, and the sand is compacted into the vibrating tube while the hollow tube is gradually pulled out to create a sand pile.

However, in the above-mentioned conventional sand pile construction equipment, the vibrating tube is fixed to the skewered hollow tube via vibration-proof rubber and a plate-like support, so the effect of removing sand from inside the hollow tube is poor and there is a possibility that the sand will be removed. The tamping effect is also poor. In other words, since the vibration tube is fixed to the hollow tube via the vibration isolating rubber and the plate-like support, the vibration tube is moved into the hollow tube at the same time as the electric motor is driven by the vibration tube. Try to rotate the tube (try to take a picture). However, since the hollow tube is guided by a league or a crane, the hollow tube cannot rotate (does not swing).As a result, even if the vibrating tube attempts to vibrate conically, it is unable to do so; The drawback is that it is not efficient at removing sand, and it is not efficient at compacting sand.

The present invention aims to provide a sand pile building device that improves the above-mentioned drawbacks.

The present invention supports a horizontal vibrator at the lower end of a hollow tube via a spherical or curved surface support means, cuts an edge between the horizontal vibrator and the hollow tube, and allows the horizontal vibrator to support the spherical or perfectly curved surface support means. It is characterized in that it is configured to vibrate in a conical manner with its center point as its apex, and its spherical or curved surface support means is provided with an opening through which sand passes.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Three examples of the sand pile construction apparatus of the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 to 5 show a first embodiment of the pile building apparatus of the present invention. The sand pile construction device of the present invention in this embodiment includes an exciter 2 mounted on the top end of a steel hollow tube l of a predetermined diameter,
It is configured to be able to give vertical (axial) vibration to the hollow tube l. A sand inlet 3 is provided at the top end of the hollow tube 1, and a sand outlet 4 is provided at the lower end of the hollow tube 1. An opening/closing lid 5 is pivotally supported on the sand discharge port 4 so that it can be opened and closed, and when the hollow tube 1 penetrates, the opening/closing lid 5 closes to prevent sand from entering the hollow tube 1, while the hollow tube IO is pulled out. When constructing a sand pile, the opening/closing lid 5 is opened and the sand in the hollow tube 1 is discharged from the sand discharge port 4.A horizontal vibrator 6 is attached to the lower end of the hollow tube 1.
is supported by a spherical or curved surface support means 7 and extends downward. The horizontal vibrator 6 is provided with four parts 61 each having a semicircular cross section in the circumferential direction of the casing 60 on the outer surface of the upper end of the elongated cylindrical casing 6o. Its casing 6o
A driving source (not shown) such as an electric motor or a hydraulic motor is built into the upper part of the casing 6o, and an eccentric shaft 62 is rotatably supported from the middle part to the lower part of the casing 6o, and the eccentric shaft 62 and the driving source are connected. The structure is such that the casing 6° can vibrate horizontally (vertically) with respect to the shaft. Vibrating blades 63 are planted in a cross shape from the middle part to the lower end of the ii+ side surface of the casing 6o. The retractable blades 63 of the horizontal vibrator 6, etc., and the opening/closing lid 5 of the hollow tl are the openings between the cross-shaped vibrating blades 63 of the horizontal vibrating machine 6 when the hollow tube l penetrates. On the other hand, when constructing a sand pile, the opening/closing cover 5 is opened so as not to interfere with horizontal photographing by the horizontal vibrator 6. The spherical or curved surface support means 7
is a triangular lip 7 on the inner surface of the lower end of the hollow tube l.
0 and the mounting arm 71 are provided in a cross shape, and an opening 72 through which sand passes is formed between the lip 70 and the mounting arm 71.
It is made by fixing. The recess 6 of the horizontal vibrator 6 is attached to the support member 73 of the spherical or curved surface support means 7 thus formed.
1 is supported, and the horizontal photographing device 6 is configured to perform conical vibration, a so-called giving motion-like vibration, with the support center point 0 of the spherical or curved surface support means 7 as the central apex.

This conical imaging will be further explained in detail with reference to FIGS. 4 and 5. Figures 4 (a) to (d) are schematic diagrams of the horizontal vibrator seen from the side, showing the relationship between the conical vibration state of the horizontal vibrator and the rotational state of the eccentric shaft, and Figure 5 is a diagram showing the conical vibration state of the horizontal vibrator FIG. 4 is a schematic view of the horizontal vibrator seen from the bottom showing the vibration state, and FIG.
and 6(a), 6(b), 6(c) in Figure 5,
6(d) correspond to each other.

First, it is assumed that the eccentric shaft 62 is rotated as shown by the arrow in FIG. At this time, when the eccentric shaft 62 is located on the front side of the paper as shown in FIG. 4 (IL), the horizontal vibrator 6 is placed on the paper side, that is, in the state shown in 6(a) of FIG. 5. Subsequently, when the eccentric shaft 62 is located on the left side of the page as shown in FIG. 4(b), the horizontal vibrator 6 is positioned on the right side of the page, that is, at
). Subsequently, when the eccentric shaft 62 is positioned toward the plane of the paper as shown in FIG. 4(C), the horizontal vibrator 6 is placed on the near side of the plane of the paper, that is, the state shown in 6(c) of FIG. 5. Further, when the eccentric shaft 62 is located on the right side of the paper as shown in FIG.
The state shown in FIG. 6(d) is reached. In this way, the horizontal vibrator 6
performs conical vibration, a so-called zigzag motion-like imaging, with the support center point O of the spherical or curved surface support means 7 as the central apex. In addition, in FIGS. 4(a) to (d), the symbol O' indicates the hollow tube l.
The axis G indicates the center of gravity of the eccentric shaft 62.

The sand pile building apparatus of the present invention in this embodiment has the above-mentioned configuration, and its operation will be explained below.

First, the exciter 2 is activated to penetrate the hollow tube 1 into the ground to a required depth. Next, pour sand from the sand inlet 3 into the hollow tube 1.
Put sand inside. Then, while operating the horizontal vibrator 6, the hollow tube l is gradually pulled out. Then, the horizontal vibrator 6 vibrates conically, and the casing 60 and vibrating blades 63 of the horizontal vibrator 6 vibrate as shown in FIG. At the same time as discharging the sand, the discharged sand is compacted. At this time, hollow tube 1
Since the horizontal vibrator 6 and the horizontal vibrator 6 are edged by a spherical or curved support means 7, the horizontal vibrator 6 can perform conical vibrations, so that the hollow tube and the horizontal vibrator 6 are edged by a spherical or curved support means 7. Compared to pile building equipment, it has a superior effect of removing sand from inside the hollow tube and compacting the sand.

As described above, a sand pile can be created in the ground by gradually pulling out the hollow tube 1 while operating the horizontal vibrator 6.

FIG. 6 is a partial sectional view showing a second embodiment of the sand pile building apparatus of the present invention. In this embodiment, the spherical or curved surface support means 7 is provided with a support member 73& having a spherical concave portion, and the horizontal vibrator 6 is provided with a spherical convex portion 61m, and the spherical convex portion 61& is connected to the spherical concave portion 73a. , and achieves the same effect as the above-mentioned embodiment.

FIG. 7 is a partial sectional view showing a third embodiment of the sand pile building device of the present invention. In this embodiment, several bearings, ie, spherical members 73b, are arranged in parallel on the spherical or curved surface support means 7, while the horizontal vibration! The I machine 6 is provided with a recess 61b having a semicircular cross section, and a spherical member 73b is fitted into the recess 61b, and the same effects as in the first embodiment described above are achieved.

Note that the spherical or curved surface support means of the sand pile construction apparatus of the present invention is not limited to the above-mentioned embodiments. Also,
The means for penetrating the hollow tube 1 may be other than the vibrator 2 that vibrates the hollow tube 1 in the vertical direction.

As is clear from the above embodiments, the sand pile construction device of the present invention has a horizontal vibrator supported on a hollow tube via a spherical or curved surface support means, and therefore The horizontal vibrator vibrates conically around the support center point of the spherical or curved support means as the center apex, and as a result, the hollow tube and the horizontal vibrator are disconnected from each other. Compared to conventional sand pile construction equipment, it has a superior sand removal effect and sand tamping effect.

[Brief explanation of drawings]

1 to 5 show a first embodiment of the sand pile construction device of the present invention, FIG. 1 is a longitudinal sectional view, and FIGS. 2 and 3 are sectional views taken along the line II-II in FIG. 1. and In-II
I-line sectional view, Figures 4 (a) to (d) are schematic views of the horizontal vibrator as seen from the side, showing the relationship between the conical vibration of the horizontal vibrator and the rotational state of the eccentric shaft, and Figure 5 is a horizontal FIG. 2 is a schematic diagram of a horizontal vibrator seen from the bottom, showing a conical vibration state of the vibrator. FIG. 6 is a partial sectional view showing a second embodiment of the sand pile making device of the present invention, and FIG. 7 is a partial sectional view showing the third embodiment of the sand pile making device of the present invention. be. ■...Hollow tube, 3...Sand inlet, 4...Sand discharge port, 6...Horizontal vibrator, 60...Casing, 61...
... recessed part, 61a ... spherical convex part, 61b ... recessed part,
62... Eccentric shaft, 7... Curved surface support means, 70...
Lip, 71... Mounting arm, 72... Opening, 73...
- Support member, 73a... Spherical recess, 73b... Spherical member. Patent Applicant Construction Machinery Research Co., Ltd. Agent Patent Attorney Tadashi Akimoto Figure 1 Special opening af; 0-112918 (4) Figure 2 Figure 3

Claims (1)

[Claims] In a sand pile building device in which a sand inlet and a sand outlet are provided at the top and bottom ends of a hollow tube, and a horizontal vibrator is extended downward from the bottom end of the hollow tube, the horizontal vibrator is installed inside a cylindrical casing. has a built-in drive source and supports an eccentric shaft, and the eccentric shaft and the drive source are linked to each other so that the casing can vibrate in the horizontal direction with respect to the shaft, and the horizontal vibrator thus formed is installed in the hollow With spherical or curved support means at the lower end of the tube,
A sand pile construction characterized in that a horizontal vibrator is supported so as to vibrate in a conical manner with the support center point of the spherical or curved surface support means as the center apex, and an opening through which sand passes is provided in the spherical or curved surface support means. Device.