JPH0630894Y2 - Compaction device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a compacting device which is attached to an arm of a construction civil engineering machine such as a power shovel to compact the ground.

[Conventional technology]

In recent years, from the viewpoints of securing safe and comfortable traffic space, strengthening urban disaster prevention function, improving cityscape, etc., or from consolidating various pipes buried underground, as shown in FIG. A concrete box 31 with a lid 30 is buried, and a conduit P ₁ of an overhead power line occupying an urban road is installed in the box 31 together with a underground pipe P ₂ such as a gas pipe or a water pipe.

When laying the concrete box 31, the groove 3 is formed on the ground.
After digging 2 and compacting the groove bottom, concrete box 3
There is a method of placing 1 and backfilling the soil on it. In this case, if the soil is simply backfilled, voids will remain between the inner soil grains, and the voids will be filled with time due to external pressure, etc., and there is a risk that the surface of the soil will gradually collapse. Compaction takes place.

As a conventional soil compaction device, there is one in which a compaction plate is moved up and down by a vibrator to apply pressure from the upper surface of backfill soil.

[Problems to be solved by the device]

However, in the above compaction device, since the pressure spreading surface of the compaction plate is a wide flat surface, compaction work is performed from the surface of the backfilled soil, the vibration is not transmitted to the deep portion, and the entire soil is not filled in the groove 32. If compaction is performed with the backfilled state, the inside cannot be sufficiently compacted. For this reason, it is necessary to alternately perform the soil backfilling work and the compaction work several times, and there is a disadvantage that the compaction is very troublesome.

Further, when the distance between the side surface of the excavated groove 32 and the side surface of the concrete box 31 is narrow, it is not possible to insert the compaction plate into the narrow portion, and it is possible to perform the compact work of the narrow portion. Can not.

Therefore, this invention eliminates the above-mentioned inconvenience, and can uniformly and efficiently compact the entire backfill soil,
It is an object of the present invention to provide a compaction device capable of compacting a narrow portion.

[Means for Solving the Problems]

In order to solve the above problems, in the compaction device of the present invention, a vibrator is attached to a lower portion of an attachment that is detachably attached to an arm tip of a construction civil engineering machine such as a power shovel, and An upper portion of a compaction blade formed of a plate body is attached to the lower side, and a protruding portion protruding laterally is provided at the lower portion of the blade.

[Action]

The compaction device having the above-mentioned configuration positions the blade inside the backfill soil, operates the vibrator by driving the hydraulic motor, and applies minute vertical vibration to the blade to compact the backfill soil from the inside. Of. In this case, since the blade is provided with protruding portions that protrude to both sides, the vibration applied to the blade gives a small vibration to the backfill soil at the lower end of the blade and the protruding portion, and compacts it densely. be able to.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

As shown in FIGS. 1 and 2, an attachment 1 attached to a tip end of an arm A of a construction civil engineering machine such as a power shovel includes a guide cylinder 2, and a bracket 3 is attached to an upper portion of the guide cylinder 2. .

Further, an elevating cylinder 4 is slidably inserted inside the guide cylinder 2, and a cylinder 5 incorporated inside the elevating cylinder 4 is installed.
The upper end of the cylinder 5 is connected to the guide cylinder 2 via a pin 6, and the lower end of the cylinder 5 is connected to the elevating cylinder 4 via a pin 7. Therefore, by operating the cylinder 5, the elevating cylinder 4 moves up and down.

The lower part of the elevating cylinder 4 faces downward from the lower end of the guide cylinder 2,
A turning device 9 is supported in a mounting frame 8 attached to the lower end thereof. The frame 1 attached to the rotating shaft of the turning device 9
0 indicates a pair of side plates 12 downward from both sides of the upper end plate 11,
It has a U shape provided with 12, and the orientation of the frame 10 can be adjusted by the operation of the turning device 9.

In the attachment 1 having the above-described configuration, the bracket 3 is detachably attached to the distal end of the arm A and the other end of the link arm B whose one end is connected to the arm A via a pair of pins 13.

Incidentally, the link arm B comprises a pair of link _b 1, _{b 2} with each other by connecting the ends, the link _b 1, b
One end of the cylinder C is connected to the connecting portion of ₂ , and the other end of the cylinder C is connected to the arm A. Therefore, the inclination of the attachment 1 can be adjusted by operating the cylinder C.

Both side plates 1 of the frame 10 in the attachment 1
A vibrator 14 is attached between the two. In this case, if the vibrator 14 is directly attached to the frame 10, the vibrator 14
Vibrations are transmitted to the attachment 1 and there is a risk that the connecting parts of the members constituting the attachment 1 may be damaged. Therefore, a pair of support plates 15 are attached to both sides of the vibrator 14, and the support plates 15 are attached to the elastic members 16 Through frame 1
It is attached to the 0 side plate 12.

In the vibrator 14, a pair of left and right rotating shafts (not shown) arranged in parallel inside the box body 17 are interlocked with each other by gears so as to rotate in opposite directions, and a knitting center weight is fixed to the both shafts. One of the pair of rotary shafts is rotated by the hydraulic motor 18 to apply vibration in the vertical direction, but the vibrator 14 is not limited to this.

A connecting plate 19 is attached to the lower portion of the vibrator 14, and a base plate 20 is attached to the connecting plate 19 via means such as bolting. A pair of L-shaped pressure spreading plates 21, 21 are attached to the lower surface of the base plate 20,
A space is provided between the pressure spreading plates 21 to allow the blade to be inserted therein. A plurality of pin insertion holes are formed in each pressure spreading plate 21, and an upper portion of the blade 24 is detachably attached to the pin insertion holes via a pin 23 that can be inserted and removed.

Here, the blade 24 is made to have an optimum shape for compaction of the soil, and in the case of the embodiment, the soil of the narrow portion between the side surface of the groove 32 and the side surface of the concrete box 31 shown in FIG. 6 is compacted. It has a plate shape so that it can be solidified. The blade 24 may be directly attached to the connecting plate 19 of the vibrator 14.

A plurality of protrusions 25 that are long in the left-right direction are formed on the lower portions of both side surfaces of the blade 24, and the upper and lower portions of each protrusion 25 are inclined surfaces 26.

The compaction device shown in the embodiment has the above structure, and when compacting the backfill soil shown in FIG. 6, when compacting the soil in the narrow portion between the side surface of the groove 32 and the side surface of the concrete box 31, The blade 24 is positioned in the narrow portion and the vibrator 14 is operated.

By vertically moving the elevating cylinder 4 with the cylinder 5, the insertion position of the blade 24 is adjusted, and a downward force is applied during the pressure spreading work by the pressure spreading plate 21.

Incidentally, the attachment 1 in the embodiment shown in FIG.
Is provided with a slide mechanism such as an up-and-down moving cylinder for vertical movement between the bracket 3 and the frame 10, but the attachment 1 has a configuration in which the bracket 13 is directly rotatably attached to the frame 10 without the slide mechanism. (Not shown).

The blade 24 vibrates slightly at high frequencies in the vertical direction by the operation of the vibrator 14, so that the soil around the blade 24 can be compacted. In this case, the protrusion 2
Since the lower side of 5 is the tapered surface 26,
The vibration of the blade 24 in the vertical direction is transmitted in multiple directions, such as vertical, horizontal, and diagonal, to slightly vibrate the surrounding soil and eliminate voids between the soil particles, so that the narrow portion can be compactly hardened evenly. be able to. After compacting the soil in the narrow portion as described above, the blade 24 is removed, and the vibrator 1
The surface of the backfill soil above the lid 30 is compacted by the pressure spreading plate 21 vibrated by 4.

In the embodiment shown in FIG. 1 and FIG. 2, the protrusion 25 attached to the blade 24 has a taper surface 26 at its upper and lower portions as a length extending over both side edges of the blade 24. The length, shape, and mounting position are not limited to this. 3 to 5 show the protrusion 2
5 shows another embodiment. In the embodiment shown in FIG. 3, the upper and lower surfaces of the protrusion 25 attached to the side surface of the blade 24 are flat. When the soil is compacted with the blade 24 in this embodiment, the soil adheres to the corner portions formed by the protrusion 25 and the blade 24 on the upper and lower sides of the protrusion 25 as shown by the chain line, The backfilled soil can be oscillated and pressured diagonally through the attached soil.

In the embodiment shown in FIG. 4, protrusions 25 are provided on both lower and lower sides of the blade 24, and the protrusions 25 have a semi-cylindrical shape.

Furthermore, in the embodiment shown in FIG.
A protrusion 25 is attached to the lower end of the protrusion 25, and both lower surfaces of the protrusion 25 are tapered faces 26.

In the embodiment shown in FIGS. 4 and 5, similarly to the embodiment shown in FIGS. 1 and 2, the backfill soil is oscillated and pressured vertically, horizontally and diagonally by the projecting portion 25. You can

The protruding portion 25 attached to the side surface of the blade 24 may be divided into a plurality of pieces in the lengthwise direction, and a required space may be provided between the divided pieces. Further, the protrusion 25 may be inclined in the length direction, and both ends of the protrusion 25 may be inclined in opposite directions. Furthermore, the protrusion 25 may be a large number of hemispheres scattered.

Further, in each of the above-described embodiments, the protrusions 25 are provided on both side surfaces of the blade 24. However, the protrusions may be provided only on one side surface of the blade 24 depending on the shape of the place of use.

[Effect of device]

As described above, according to the present invention, since the blade that is vertically vibrated by the operation of the vibrator is formed by the plate body, and the protruding portion that laterally protrudes is provided at the lower portion of the blade,
By placing a blade inside the backfill soil and applying vibration, the soil can be finely vibrated in all directions to reduce voids between the soil particles, and the backfill soil can be compacted from the inside, Since the projecting portion presses the backfilled soil in an oblique direction, the backfilled soil can be uniformly compacted over a wide range in a short time and with few operations.

Further, since the blade is formed of a plate body, it is possible to extremely effectively and efficiently compact even the backfilled soil in the narrow portion.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a compaction device according to the present invention, FIG. 2 is a partially cutaway side view of the same, and FIGS. 3 to 5 are other embodiments of the blade of the same. Side view showing, No. 6
The figure is a diagram showing an example of compaction work. A ... Arm, 1 ... Attachment, 14 ... Vibrator, 24 ... Blade, 25 ... Projection.

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A compaction blade formed by a plate below a vibrator attached to a lower portion of an attachment detachably attached to an arm tip of a construction civil engineering machine such as a power shovel. A compaction device in which the upper part of the blade is attached, and a protrusion protruding laterally is provided on the lower part of the blade.