JPH04138428U - Ground agitation mixing treatment equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a ground stirring and mixing treatment device that can prevent the ground soil and stirring blades from rotating together without providing fixed blades. [Structure] A swivel device 6 at the upper end of a rotating shaft 1 passing through the rotating shaft driving device 2 and the rotating shaft driving device 2 are coupled by double-acting cylinder devices 7, 7 (first device). A vibrator is attached via a swivel device to the upper end of the rotating shaft passing through the rotating shaft drive device (second device). [Effect] The operation of the cylinder device and vibrator reduces the adhesive force of the ground soil and increases its fluidity, preventing the co-rotation phenomenon of the ground soil.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention supplies soil improvement material to the rotating area of the stirring blade attached to the lower end of the rotating shaft. Regarding a ground stirring and mixing treatment device that processes the ground by stirring and mixing soil improvement materials. It is.

0002

[Problems to be devised]

Ground improvement material is supplied to the rotating area of the stirring blade attached to the lower end of the rotating shaft to improve the ground. Ground agitation mixing for the so-called deep mixing treatment method, which treats the ground by agitating and mixing materials. In the processing equipment, the ground soil adheres to the stirring blades due to its adhesive strength and rotates with the stirring blades. A so-called co-rotation phenomenon may occur, reducing the efficiency of stirring and mixing.

0003 As a countermeasure, conventionally, fixed blades were installed between the upper and lower stirring blades to prevent co-rotation. is publicly known (see Japanese Unexamined Patent Publication No. 153013/1983), but in this publicly known example, the fixed If the fixed blades are too far away from the stirring blades, the effect will be weak, and if they are too close together, the stirring blades will not be as effective. There is a problem in that boulders or the like can get caught between the blades and cause malfunctions.

0004

[Purpose of invention]

The purpose of this invention is to solve the above-mentioned co-rotation phenomenon of the ground soil and stirring blades without installing fixed blades. It is an object of the present invention to provide a ground stirring and mixing treatment device that can prevent the above.

[0005]

[Structure of the idea]

The structural feature of the first device of the present invention is the rotation of the stirring blade attached to the lower end of the rotating shaft. Ground agitation, which treats the ground by supplying soil improvement materials to moving areas and stirring and mixing the soil improvement materials. In an agitation/mixing processing device, a switch installed at the upper end of the rotating shaft that passes through the rotating shaft drive device. The bell device and the rotary shaft drive device are connected by a double-acting cylinder device. In addition, the structural feature of the second device of the present invention is that the stirring device is attached to the lower end of the rotating shaft. Treat the ground by supplying soil improvement material to the rotating area of the blade and stirring and mixing the soil improvement material. In the ground agitation and mixing treatment equipment, there is a strip at the upper end of the rotating shaft that passes through the rotating shaft drive device. The point is that a small, vertically vibrating vibrator is attached via a swivel device.

[0006] As is clear from their characteristic configurations, the two devices of the present invention are mounted on the rotating shaft. Attaches to the rotating shaft and its lower end by applying vertical vibration force to the end. By vibrating the stirring blades up and down, the cohesive force of the ground soil is reduced, causing a co-rotation phenomenon. It is designed to prevent this.

[0007]

[Explanation of Examples]

In FIGS. 1 and 2, which are explanatory diagrams of an embodiment of the first device of the present invention, 1 is a rotating shaft. , 2 is a rotating shaft drive device, and a plurality of stirring blades (not shown) are provided at the lower end of the rotating shaft 1. ) protrude in the radial direction.

[0008] A spline is attached to an appropriate length of the upper end of the rotating shaft 1 that passes through the rotating shaft drive device 2. A male part 3 is provided, to which a spline female part 5 of a drive gear 4 of the rotary shaft drive device 2 is attached. The rotating shaft 1 is rotated by transmitting power from the driving gear 4, which rotates at an appropriate speed. It is designed to be able to move up and down while rolling (see Figure 2).

[0009] A swivel device 6 is provided at the upper end of the rotating shaft 1. Piss of a pair of left and right double-acting cylinder devices 7, 7 installed upright on the housing of the drive device 2 The tips of the ton rods 8, 8 are connected, and the rotating shaft 1 is connected to an appropriate hanging device and wire (not shown). It is now possible to move up and down together with the rotary shaft drive device 2 suspended from the main body of the construction machine. ing.

0010 9 is a supply port for the ground improvement material provided in the swivel device 6, and the ground improvement material is supplied to the rotating shaft. It is supplied to the rotating region of the stirring blade through a tube 11 in the axial hollow part 10 of 1.

[0011] When stirring and mixing the ground soil and soil improvement material, the piston rods of the cylinder devices 7, 7 When the rods 8, 8 are reciprocated at appropriate intervals, the rotary shaft 1 and the stirrer attached to its lower end are The stirring blades vibrate up and down, reducing the cohesion of the soil and increasing its fluidity. , the co-rotation phenomenon of the ground soil is prevented, and the efficiency of stirring and mixing is increased.

0012 Next, in FIGS. 3 and 4, which are explanatory diagrams of an embodiment of the second device of the present invention, 12 is a rotating shaft, 13 is a rotating shaft drive device, and a plurality of stirring blades are installed at the lower end of the rotating shaft 12. (not shown) protrudes horizontally.

[0013] The rotary shaft 12 passing through the rotary shaft drive device 13 has a rectangular cross-section and is decelerated appropriately. Power is transmitted from the drive gear 14 of the rotary shaft drive device 13, which rotates due to the rotation. However, it can move up and down.

[0014] A small vertically vibrating vibrator 1 is connected to the upper end of the rotating shaft 12 via a swivel device 15. 6 is attached, and the rotating shaft 12 is connected to a wire 17 (not shown) via a vibrator 16. It is suspended from the machine body so that it can be raised and lowered freely, and the rotary shaft drive device 13 is as shown in the figure. It is fixed at an appropriate position (for example, at the lower end) of the leader that guides the vertical movement of the rotating shaft 12. Or, it is suspended by a wire different from the wire 17.

[0015] 18 is a hollow part in the axial direction of the rotating shaft 12, and the ground improvement material passes through this hollow part 18. is supplied to the rotation area of the stirring blade.

[0016] When the vibrator 16 is operated during stirring and mixing of the ground soil and soil improvement material, the above-mentioned As in the case of the first device, the rotating shaft 12 and the stirring blade attached to its lower end are The cohesive force of the ground soil decreases, and its fluidity increases, causing the ground soil to vibrate. The co-rotation phenomenon is prevented and the efficiency of stirring and mixing is increased.

[0017]

[Effect of the idea]

Since the device of the present invention is as described above, it is a simple device without fixed wings. Stirring and mixing of the ground soil and soil improvement material prevents the co-rotation phenomenon of the ground soil even though the ground soil is placed in the ground. Efficiency can be increased, and the rotary shaft drive device is located below the upper end of the rotary shaft. Effects such as high stability can be expected.

[Brief explanation of drawings]

FIG. 1 is a side view of essential parts of an embodiment of a first device of the present invention.

FIG. 2 is an enlarged sectional view taken along line A-A in FIG. 1;

FIG. 3 is a side view of essential parts of an embodiment of the second device of the present invention.

FIG. 4 is an enlarged sectional view taken along line BB in FIG. 3;

[Explanation of symbols]

1: Rotating shaft, 2: Rotating shaft drive device, 3: Spline male part, 4: Drive gear, 5: Spline female part, 6: Swivel device, 7: Cylinder device, 8: Piston rod, 9: Supply port, 10 : Hollow part, 11: Pipe, 12: Rotating shaft, 13:
Rotary shaft drive device, 14: Drive gear, 15: Swivel device, 16: Vibrator, 17: Wire, 18: Hollow part.

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Yohei Hayashi Town Ishi, 1-1 Ishiodai, Kasugai City, Aichi Prefecture Odai 20 no 5 (72) Creator Tadayoshi Maeda 2-2-5-502 Gyoda, Funabashi City, Chiba Prefecture (72) Creator Shuji Isoya 13-44 Miyamae-cho, Koga City, Ibaraki Prefecture (72) Creator Shigeyuki Sakai 592-6 Kawana, Fujisawa City, Kanagawa Prefecture

Claims (2)

[Scope of utility model registration request] Claim 1: A ground stirring and mixing treatment device that treats the ground by stirring and mixing the soil improving material by supplying the ground improving material to the rotating area of a stirring blade attached to the lower end of the rotating shaft, comprising: a rotating shaft drive device; 1. A ground agitation and mixing treatment device, characterized in that a swivel device provided at the upper end of a penetrating rotating shaft and the rotating shaft driving device are connected by a double-acting cylinder device. 2. A ground stirring and mixing treatment device that treats the ground by stirring and mixing the soil improving material by supplying the ground improving material to the rotating area of a stirring blade attached to the lower end of the rotating shaft, comprising: a rotating shaft drive device; A ground agitation and mixing treatment device characterized by a small vertically vibrating vibrator attached to the upper end of a rotating shaft that passes through it via a swivel device.