JPS6294616A - Mud blender - Google Patents

Abstract

PURPOSE:To perform mixing, stirring, and charging mud by a method in which a screw auger is inserted into the upper part of an inserting cylinder, stirring blades are rotatably set on the periphery of the inserting cylinder, and the bottom of a cover is connected with the lower half of the inserting cylinder by a charging path. CONSTITUTION:After excavation, a screw auger 30 is pulled up in a state of being turned normally, and the excavated soil is put into a mud blender cover 1. A solidifying agent is then charged into the cover 1, and an oil-pressure motor 6 is turned to turn stirring blades 4 and 5 for mixing the excavated soil and the solidifying agent with stirring. The screw auger 30 is reversely turned to compact and pack the mixed soil. While the mud blender is set on the ground to be excavated, a series of forming operations of hardened columns under the ground can be performed continuously and efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention mainly relates to a mud blender for soil improvement. In other words, when constructing a rough foundation on soft ground for housing, etc., powdered soil improvement solidification material such as special cement is mixed with the excavated soil, mixed, and then returned to the excavated hole for filling. , relates to a mud blender for ground improvement for creating columnar solidified bodies in the ground.

(Prior art and its problems) Conventionally, excavated soil discharged from excavation has been mixed and stirred manually or with a small shovel, and the work of charging it into the excavation hole after mixing it with assimilated materials has also been done manually or with a small shovel. It is being done. However, the work efficiency is poor (the mixing condition is also uneven).

Furthermore, when using a conventionally used concrete mixer, it takes time and effort to introduce the excavated soil into the mixer and to introduce it into the excavated hole after mixing.

Generally speaking, in conventional concrete mixers, the generator needs to be transported and installed separately, which is inconvenient in terms of mobility, transportation, and installation.

In addition, concrete mixers have a -b problem with the shape of their blades.

(Objective of the Invention) The object of the present invention is to enable continuous and easy excavation of soft ground, mixing and stirring of the excavated soil with solidification material, and injection of the mixed soil into the excavated hole after stirring. be.

(Means for Achieving the Object) In order to achieve the above object, the present invention provides a screw ogger insertion tube whose upper and lower ends are open at the center of a bottomed cylindrical mud blender cover. A screw auger is freely inserted into the insertion tube from above, a stirring blade is rotatably arranged on the outer circumferential side of the insertion tube, and the insertion tube is provided with a lower half of the insertion tube that extends downward from the bottom of the cover. , the lower end of the insertion tube is opened toward the ground in one direction, the bottom of the cover and the lower half of the insertion tube are communicated via a guide passage, and f) i is closed between the guide passage and the bottom. It has a lid.

(Example) In FIG. 2 showing a plan view of a wet blender, a screw J is installed in the center of a bottomed cylindrical cover 1.
, -A- A screw auger insertion 143 having a gar insertion hole 2 is installed, and a rotary cylinder shaft 7 having a stirring blade 4.5 is rotatably fitted on the outer circumferential side of the insertion cylinder 3.
The rotating cylinder shaft 7 is operatively connected to the hydraulic motor 6 via a chain sprocket 8, a chain belt 9, and the like. The hydraulic motor 6 is fixed to the outer peripheral surface of the mud blender cover 1. A pair of left and right upper input ports 10 are provided in the bottom portion 1a of the mud blender cover 1, and each upper input port 10 is provided with an upper opening/closing lid 11 that can be opened and closed. 14 is a chain cover. Reference numeral 12 denotes hanging rods having holes, which are fixed in pairs on the left and right sides of the outer peripheral surface of the mud blender cover 1.

Vertical cross-sectional view of the Matsudo blender (1-1 cross-sectional view in Figure 2)
In Fig. 1, the insertion tube 3 is equipped with a mud blender.
A lower half 3a extends from the bottom 1a of the cover 1 in the direction F, and its lower end faces the ground and is integrally provided with a donut-shaped base plate 13. The upper end of the insertion tube 3 is curved upward. Lower half 3
A lower input port 15 is formed on both the left and right sides, and a chamber-shaped input path 16 is extended radially outward, and the upper end of the input path 16 is located at the upper input port 10 portion. The inside of the mud blender cover 1 can be opened and closed by an opening/closing lid 11. The lower input port 15 is opened to the insertion hole 2 by rotation of the cylindrical upper opening/closing lid 17. The bottom plate 18 of the input path 16 is inclined downward as it goes toward the insertion tube 3 side, and the bottom plate 18 of the input path 16
The mixed soil in 6 naturally flows into the lower input port 15. A reinforcing member 19 connects the bottom plate 18 of the input path 16 and the base plate 13.

To explain the structure of the upper opening/closing lid 11 in a little more detail, a co-moveable support shaft 20 is rotatably provided at the upper end of the radially outer peripheral side of the input passage 16, and one end of the upper opening/closing lid 11 is attached to the supporting shaft 20. At the same time, the operating lever 21 is also fixed. When the operating lever 21 is rotated upward, the upper opening/closing N11 is rotated downward as shown by the imaginary line to open.

In FIG. 5 showing an enlarged perspective view of the operating lever 21, J3 is shown.
A stop lever 22 is arranged next to the operating lever 21, and the operating lever 21 is moved to the closed position 1a by the stop lever 22.
It is designed to be locked and held at position i (position shown by the solid line). That is, the stop lever 22 is fixed to the rotation shaft 24,
The rotation l11124 is rotatably supported on the outer circumferential surface of the input path of the mud blender cover 1 via a bracket 25, and a hook 23 is formed at one end of the rotation shaft 24. On the other hand, a protrusion 26 is integrally formed on the operating lever 21. When the operation lever 21 is rotated to the operating position indicated by the solid line, the stop lever 22 is rotated upward to the operating position indicated by the solid line in FIG. The lever 21 is kept in the closed position. Furthermore, when the stop lever 22 is lowered and the stop lever 23 is removed, the upper opening/closing lid 11 opens naturally due to the weight of the upper opening/closing lid 11 shown in FIG. It's starting to go back.

To explain in detail the opening/closing structure of the lower input port 15 shown in FIG. 1, as shown in FIG. II lid 17 is rotatably fitted, and a pair of window holes 27 are formed in the lower part 111 and the lid 17, so that the lower part can be opened and closed! Two operation handles 28 are formed at the upper end of the handle 17 and extend radially outward.

That is, by rotating the upper opening/closing lid 17 in the direction of the arrow Ah using the operating handle 28 from the closed state shown in FIG. By returning the lower opening/closing fi 17 in the direction of the opposite arrow to the position shown in FIG. 4, the lower input port 15 and the window hole 27 are completely shifted, and the lower input port 15 is brought into the closed state.

In FIG. 3, the screw auger 30 inserted into the screw auger insertion tube 3 is a track auger car 3.
It is connected to the working beam 32 of No. 1, receives rotational power from the track auger vehicle 31, and is operated to move in the vertical direction by vertically swinging and expanding/contracting operations of the beam 32.

The hydraulic pump 6 of the mud blender is connected to a working hydraulic power source of the truck auger vehicle 31 via a hydraulic hose 35.

(Function) At the work site, a wire is hooked to the hanging rod 12, and the mud blender is suspended by the beam 32 of the truck auger vehicle 31, and is placed at a hanging base point, that is, an excavation point. Matsudo blender hydraulic motor 6 is track auger 1
31 via a hydraulic hose 35.

Next, the screw auger 30 connected to the beam 32 is inserted into the auger insertion hole 2 of the mud blender, and is lowered while rotating in the forward direction to excavate the ground to a predetermined depth.

After excavation, the screw auger 30 is pulled up while rotating in the normal direction, thereby putting the excavated soil into the mud blender cover 1. At this time, the upper part r11i11 and the lower input port 15
are both closed.

Then, the solidified material is put into the mud blender cover 1, and the agitation switch is turned on from the driver's compartment of the auger car 31. As a result, the hydraulic oil for the hydraulic power source of the auger car 31 is supplied to the hydraulic motor 6 via the hydraulic hose 35.
The hydraulic motor 6 rotates, and the chain belt 9 and cylinder shaft 7
The stirring blade 4.5 rotates through the , mixing and stirring the excavated soil and the solidification material.

After stirring, the upper opening/closing lid 11 and the upper opening/closing lid 17 are manually operated to mix the excavated soil and solidification material into the upper input port 10. The material is introduced into the excavation hole through the input channel 16 and the lower input port 15. At the same time, the screw auger 30 is lowered while rotating in the opposite direction, thereby compacting and filling the mixed soil.

(Another Embodiment) As a method of using the mud blender of the present invention, 1, for example, a solidification material may be mixed and stirred into soil brought from another place, and then the mixture may be poured into an already excavated hole. .

(Effects of the Invention) As explained above, the present invention provides a screw auger insertion tube 3 with open upper and lower ends 11 in the center of a bottomed cylindrical mud blender cover 1, and a screw auger insertion tube 3 is provided in the insertion tube 3. can be inserted from above, a stirring blade 4.5 is rotatably arranged on the outer circumferential side of the insertion IFi 3, and the insertion cylinder 3 is provided with a lower half part 3a of the insertion cylinder extending downward from the bottom 1a of the cover 1. , the lower end of the insertion tube 3 is opened toward the ground, the bottom 1a of the cover 1 and the lower half 3a of the insertion tube are communicated with each other through an input passage 16, and an opening is provided to open and close between the input passage 16 and the bottom 1a. The provision of rijfi11 has the following advantages.

A series of operations for creating columnar solid bodies in the ground can be carried out continuously and efficiently while the Matsudo blender remains installed in the ground area to be excavated.

In other words, without moving the id blender, the excavation work is performed continuously with the screw auger 30's excavation work, the mixing and stirring work with the solidifying material, and the charging of the mixed soil into the excavation hole. Work and compaction of mixed soil can be carried out continuously and efficiently.

When a hydraulic motor 6 is provided as a drive mechanism for the stirring blades, and the hydraulic motor 6 is connected to a hydraulic power source of a truck auger vehicle 31 equipped with a screw auger 30, compared to using a conventional concrete mixer,
There is no need to prepare a special generator for the power source, and the trouble of transporting and installing the power source line can be saved, and it does not take up much space.

Also, if the hanging rod 12 is provided as shown in the figure, the auger wheel 31 will cause IF! l You can simply move.

[Brief explanation of drawings]

Figure 1 shows one ill of a Matsudo blender to which the present invention is applied.
Fiffi diagram (2nd til (7) II sectional view), 2nd
The figure is a plan view of the mud blender, Figure 3 is an overall perspective view showing the working state of the screw auger wheel, Figure 4 is a perspective view of the screw auger insertion tube, and Figure 5 is a perspective view of the operating mechanism for the opening/closing lid. be. DESCRIPTION OF SYMBOLS 1... Matsudo blender cover, 1a... Bottom, 2... Screw auger insertion hole, 3... Screw auger insertion tube, 4.5...
Stirring blade, 6...Hydraulic motor, 11...Top opening/closing lid, 16...Input path, 30...Screw auger, 31...Screw auger vehicle patent applicant Shinsei Basic Industry Co., Ltd. (≧ Gen-Otsu・□ 1st Aimi Figure 2・p

Claims (2)

[Claims] (1) In the center of the bottomed cylindrical mud blender cover,
A screw auger insertion tube with open upper and lower ends is provided, and the screw auger can be freely inserted into the insertion tube from above,
A stirring blade is rotatably arranged on the outer circumferential side of the insertion tube, the insertion tube is provided with a lower half of the insertion tube extending downward from the bottom of the cover, and the lower end of the insertion tube is opened toward the ground;
The bottom of the cover and the lower half of the insertion tube are connected through the input channel,
A mud blender characterized by having an opening/closing lid that opens and closes between the input path and the bottom. (2) Equipped with a hydraulic motor as a driving mechanism for the stirring blade,
The mud blender according to claim 1, wherein the hydraulic motor is connected to a hydraulic power source of a truck auger vehicle equipped with a screw auger.