JP3526015B2 - Self-propelled soil improvement machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION The present invention improves soft ground.
Used to reinforce the ground, etc.
Improve to meet specific purposesSelf-propelled soil improvement machineRelated
To do. [0002] [Prior art] For example, burial of gas pipes, water and sewage works
And other road works, foundation works, etc. by excavation
It is desirable to backfill the generated soil as it is, but the generated soil is buried.
If it is not suitable for reversal, remove the generated soil and replace it with a new one.
The soil will be filled with quality soil. example
For example, clayey soil with extremely small particle size and high viscosity, or weathering
Soils that are difficult to solidify due to excessive progress.
If the thing is soft and backfilled as it is,
There is a risk of land subsidence. However, construction site
The poor soil generated by excavation in the city is a kind of industrial waste
Therefore, the disposal place is restricted. Obedience
Therefore, converting bad soil into reusable resources is strong
Is required. In this way, backfill the soil generated by excavation
Soft soil that may cause land subsidence
For example, lime on earth and sand
A soil improvement material mainly composed of cement or cement is mixed with earth and sand.
Solidify. This makes it possible to backfill excavated parts, etc.
Can be converted into good-quality soil that is suitably used as
The [0003] The soil improvement treatment for solidifying the earth and sand is
It is done by mixing sand and soil improvement material,
As a representative of this mixing method of earth and sand and soil improvement material
The mixing method using the stirring means and the rotary striker
The crushing method provided is conventionally known. mixing
The system is equipped with stirring and mixing means in the tank, and this tank
Stirring and mixing means by putting earth and sand and soil conditioner into the ground
And stirring and mixing uniformly. Stirring and mixing means
Only function to stir and mix inside the tank.
With batch processing, StirProvide stirring and mixing means
Then, while stirring and mixing the soil and soil improvement material,
The soil and sand quality improvement material are continuously transferred.
To continuously discharge the generated improved soil
Some perform expression processing. Another one of soil improvement treatment
For example, a pulverization type soil quality improvement machine is disclosed in JP
9-195265 and the like. This crushing method
Type soil improvement machine is equipped with a crusher consisting of rotary hammer
From the top position, send the sand and soil improvement material to the rotary impactor.
And let this rotating striker fall in the meantime
By rotating, it will hit the earth and sand and soil improvement material
In addition, it will be crushed. [0004] Among the above methods,
A high-quality improved soil in which earth and sand and soil improvement materials are uniformly mixed
The mixing method is most desirable to obtain. Especially continuous
The mixing method that can improve the soil quality by using the formula
More desirable from. Therefore, the applicant of the present application is small and cooperating.
As a continuous mixing device with a compact configuration,
The one having the structure shown in FIG.
A patent application was filed as No. 9647. In the figure, C
Is a mixing container, and one end of this mixing container C
The mixed material consisting of earth and sand and soil improvement material
The mixed material supply port S is formed, and the lower end of the other end is formed.
The part is made of improved soil in which earth and sand and soil quality improver are uniformly mixed.
An improved soil discharge port E for discharging is formed. Mixing container
The inside of C is rotated by rotation driving means such as a motor.
Two paddle mixers M are provided. Both paddle Miki
The saddle M is provided with a number of paddles P spirally on the outer peripheral surface of the rotation shaft R.
It is configured so that This configuration
The earth and sand supplied from the mixed material supply port S
The mixed material consisting of quality improving material is mixed in the mixing container C.
As paddle mixer M rotates, it is stirred and mixed.
However, it is transferred to the improved soil discharge port E side. Where Miki
These two paddle mixers M arranged in the container C
The rotation axis R is configured to rotate in opposite directions.
To do. Thus, the earth and sand and the soil conditioner are mixed.
In the previous state, it is a mixed material that is completely mixed.
The combined object is improved soil. Therefore, mixing container C
From mixed materials to improved soil is housed inside
ing. Therefore, when not distinguishing them,
As long as it is located in the mixing container C, the mixed material
To the improved soil are collectively called mixed soil. When the paddle mixer M is activated, the mixing is performed.
The mixed soil in the container C turns around the axis of the rotation axis R.
Then, it is transferred in the direction of the improved soil discharge port E. However, mixed soil
The direction of transport is diagonally forward and two pads in parallel
In the mixers M and M, toward the directions close to each other
Ingredients that are transported diagonally (indicated by solid arrows in the figure)
Direction) and components that are transported diagonally in the direction of separation.
(The direction indicated by the dotted arrow in the figure).
The Of these, when transported in directions close to each other
Is the most efficient stirring and mixing of mixed soil. one
On the other hand, the mixed soil transported away from each other is Myxin
It is regulated by the side wall of the container C and adheres to this side wall,
Scraping the mixed soil from the side wall with paddle P
Thus, the transfer direction is changed. others
For this reason, the mixing container C has a concave circle with the side wall facing up and down.
There is no arc surface shape, and the inner surface of this arc is the rotation of the tip of the paddle P.
A slight gap with respect to the rolling trajectory
By forming a gap that does not
The dollar P efficiently scrapes the mixed soil that tries to adhere to the side wall.
Take a turn without depositing on the side wall surface
It is. By the way, in the mixing container C,
At the location of the good soil outlet E, the earth and sand that make up the mixed soil
The improved material is uniformly mixed to form improved soil.
The mixed soil no longer needs to be transported further forward.
Let it fall quickly and smoothly from the improved soil outlet E
There must be. For this reason, immediately before the improved soil outlet E
Until the position immediately after the paddle P is mounted on the rotation axis R
However, in areas where the improved soil discharge port E is open,
The dollar P is not provided. This makes the mixed soil
The transfer force is lost and transferred upstream.
Improved soil discharge port by being pushed out into the mixed soil
E is discharged. However, the end pad provided on the rotary shaft R is not suitable.
Mixin out of the mixed soil transport direction by the action of dollar P
Mixed soil toward the side wall of the container C, that is, a dotted arrow in the figure
The mixed soil given thrust in the direction of the mark is pressed against the inner surface of the side wall.
Will be. However, the paddle P is missing after that.
Since it has fallen, a scraping function is applied to this mixed soil.
I don't know. As a result, the mixed soil pressed against the side wall
Will continue to remain
In between, further mixed soil will adhere on it
And the pressing force will increase,
The amount of mixed soil adhering to the sidewall increases during the period
become. Thus, if the amount of adhesion to the side wall increases,
The opening area of the good earth outlet E is restricted, and this
The amount of improved soil discharged from the improved soil discharge port E is reduced.
Things can happen. Then continue further processing.
Continuing, eventually the improved soil outlet E will be closed
It will also be. Prevent the above situation from occurring
In order to achieve this, the paddle is also located above the improved soil discharge port E.
It is conceivable to provide P. However, if you do so
The soil should be sent to a position beyond the improved soil outlet E
become. And the front side of the improved soil outlet is mixing
Since the end wall of container C is located, improved soil outlet E
The mixed soil sent to a position beyond
Attached and improved adhesion from the end wall side while processing is still in progress
The soil will begin to grow toward the improved soil outlet E
The That is, at the position of the improved soil discharge port E, the paddle P
If the paddle P is provided on the side wall side
On the wall side, mixed soil adheres and covers the improved soil outlet E
Will grow to the position, anyway of the improved soil
This will cause the inconvenience that the discharge function is impaired.
The The present invention has been made in view of the above points.
And the purpose is that in the mixing container
Ensure that the generated improved soil can be discharged smoothly and reliably.
There is to be. [0011] The above-mentioned object is achieved.
Therefore, the present inventionFrame and provided in this frame
A lower traveling body, and an upper end and a lower
Box-shaped container body with an open end,
Empty the top opening above the paddle and the improved soil outlet, which will be described later.
A lid that closes with a gap, and a lower end opening of the container body
Mixing Container Containing a Concave Wall Shaped with a Concave Curve
And formed on the top of one end of this mixing container,
A mixed material supply port for introducing sand and soil improvement material;
Formed in the lower part of the other end of the mixing container to discharge the improved soil
The improved soil discharge port and the mixing container provided in the mixing container.
A number of rotating shafts and the mixed material supply port of these rotating shafts
Screw the screw from the upstream position to the position before the improved soil discharge port.
Positioned in the axial direction and circumferential direction of the rotating shaft so as to form a spiral.
Multiple paddles that are tilted while shifting the position, and the front
The rotating shaft is connected to the corresponding portion of the improved soil discharge port.
Provided while shifting the position in the axial direction and circumferential direction of the rotating shaft
Pressed by the paddle and above the improved soil discharge port.
Improved soil rack that grows attached to this part due to the existence of space
A plurality of scraping members for collapsing the bridge and the frame;
Supply earth and sand hopper on one side and soil improvement material
The soil improvement material hopper provided in the frame, and the front
From the earth and sand hopper and from the soil improvement material hopper
In order to transfer the soil improvement material to the mixed material supply port,
A carry-in conveyor provided below the earth and sand hopper;
In order to discharge the improved soil from the good soil outlet,
Improved soil discharge means provided on the other side of theHaving
It is the feature. [0012] [0013] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment of the invention will be described. Note that the present invention
It should not be construed as limited to the embodiment of
Needless to say. First, FIG. 1 shows the overall structure of the soil quality improvement system.
Indicates. In the figure, 1 is a collection of earth and sand to be improved
Sediment collection point, 2 is a mixed material consisting of sediment and soil improvement material
Mixed material supply unit, 3 is soil improvement mechanism, 4 is modified
Discharge means for good soil, 5 is an improved soil storage where improved soil is deposited
It is. A hydraulic excavator 6 is located in the sediment collection site 1.
The excavator 6 scoops up the earth and sand,
It is supplied to the mixed material supply unit 2. On the other hand, mixing of soil improvement materials
Supply to the composite material supply unit 2 is, for example, a flexible computer.
Made from tena. The mixed material supply unit 2 includes an earth and sand hopper 10, and
Consists of soil improvement material hopper 11 and carry-in conveyor 12
Is done. Here, the carry-in conveyor 12 is set in an inclined state.
Earth and sand supplied from the earth and sand hopper 10,
The soil improvement material supplied from the soil improvement material hopper 11 is oblique
Therefore, it is transported upward. Therefore, this carrying
In the conveying direction of the mixed material by the entrance belt 12, earth and sand
The hopper 10 is on the upstream side, and the soil conditioner hopper 11 is below it.
Located on the flow side. The earth and sand hopper 10 has a generally rectangular frame-shaped portion.
It is made of wood and, as is clear from FIG.
The foreign substance sieving means 13 is installed.
The sieving means 13 is preferably composed of a vibrating sieve
To do. Moreover, the lower end part of the earth and sand hopper 10 is the carrying-in conveyor 1
2 facing the transport surface with a slight gap,
On the upstream side in the conveyance direction by the carry-in conveyor 12
An opening 10a for carrying out is formed on the wall surface.
It is conveyed by the carry-in conveyor 12 through the opening 10a.
The amount of earth and sand, that is, the amount in the height direction is regulated. The soil improvement material hopper 11 is shown in FIG.
In other words, storage consisting of a cylindrical or box-shaped tank
A fixed quantity supply unit 15 is connected to the lower part of the unit 14.
The storage unit 14 is mounted with a lid 14a that can be opened and closed.
A predetermined amount of soil improvement material is supplied from a sibble container.
The A communication hole 14b is provided on the bottom surface of the storage part 14.
Thus, soil improvement is made to the quantitative supply unit 15 through the communication hole 14b.
Good material flows in, and the soil quality improvement material is fixed from the fixed quantity supply unit 15.
The amount is supplied to the carry-in conveyor 12 in increments.
The In addition, the soil from the storage unit 14 toward the quantitative supply unit 15
In order to supply the improved material smoothly, it is suitable for this reservoir 14.
It is desirable to provide a stirring means having a suitable configuration. As shown in FIG. 4, the quantitative supply unit 15
Between the arcuate wall surfaces 15a and 15a before and after the lower end is opened
And a rotary type driven by an electric motor (not shown)
Constructed by attaching the feeder 16, and the lower end opening
The part becomes the soil quality improvement material supply port 15b. Rotary feeder 1
6 is a predetermined angle to the rotating shaft 16a (in the illustrated one,
Is formed by forming a partition wall 16b every 90 °).
And a predetermined volume between adjacent partition walls 16b and 16b.
The soil improvement material accommodating part S which has is formed. Therefore, times
When the rotary feeder 16 rotates in the direction of the arrow, it rotates 1/4.
Soil improvement formed between partition walls 16b and 16b every time
An amount of soil improvement material equivalent to the volume of the material container S is loaded
It will be supplied to the bear 12. Therefore, the rotating shaft 16
By changing the rotation speed of a,
The supply amount is controlled. Therefore, the soil supplied from the earth and sand hopper 10
Make the amount of sand constant or smell in the carrying belt 12 etc.
Provide a means to detect the amount of earth and sand transported.
Depending on the feed rate, the soil feeder is provided with a rotary feeder 16
Mixing ratio of soil and soil improvement material by controlling the supply amount
Can be made constant. As described above, by the carry-in conveyor 12
The earth and sand and the soil improvement material are conveyed, but this carry-in conveyor
The end of 12 is connected to the soil improvement mechanism 3. Soil break
The good mechanism 3 is mixed as shown in FIGS.
A container 20 is provided. The mixing container 20
As is clear from FIG. 5 and FIG.
Box-shaped container body 20a and this container body 20a
By attaching a lid 20b that closes the upper end opening of the
The lid 20b is attached to the container body 20a with bolts or the like.
It is desirable to fix it detachably. Under the container body 20a
A plurality of leg rods 21 are provided in the section, thereby
The mixing tank 20 is installed at a predetermined height position.
It becomes. The mixing container 20 is provided with a carry-in conveyor 12.
The mixed material supplied from is transferred while stirring and mixing
Is for. Therefore, as shown in FIG.
The connection side of the carry-in conveyor 12 in the mixing container 20
Near the end, a cylindrical mixed material supply port 22 is provided in the lid 20a.
It is formed and the bottom of the other end is a cylindrical improved soil drain
An outlet 23 is formed. And mixed material supply port 2
2 is mixed in the mixing container 20
It is transported toward the improved soil outlet 23 while being stirred at the section.
The mixed soil is uniformly mixed to produce improved soil, and the improved soil discharge
It will be discharged from the mouth 23. In order to perform this soil improvement process, FIG.
As is apparent from FIG. 7, the mixing container 20 has 2
Two paddle mixers 24 are provided in parallel. paddle
The mixer 24 stirs and mixes the soil and soil improvement material.
It constitutes the stirring / mixing means to be transferred and rotates
The rotating shaft 25 has a stirring / transfer member.
Paddle 2 made up of intermittent blades arranged in a spiral
6 is inclined at a predetermined angle with respect to the central axis of the rotary shaft 25.
Many are planted in a state. Therefore, this paddle 2
Depending on the angle of 6, the transfer amount per rotation of the rotary shaft 25 is
It is determined. Here, the paddle 26 is fixed to the rotary shaft 25.
The paddle body 26b is attached to the support rod 26a provided by the bolt 26.
It is attached so as to be fixed at c. This
When the paddle body 26b is worn,
Can be exchanged. In the present embodiment, the paddle mixer 24 is used.
The two paddle mixers 24 are provided.
Is determined by the relationship between the height and width of the mixing container 20
The number is not limited to two. Mixi
Increasing the height of the container 20 increases the turning radius.
Large paddles can be attached
The number of mixers 24 may be small, but the mixing container
When the height dimension of 20 is lowered and the width is widened,
Since the paddle turning radius is small, the paddle mixer book
Increase the number. Therefore, in order to have a predetermined stirring efficiency
In addition, the width dimension of the main body frame 2 and the height dimension of the entire vehicle
The size of the mixing container 20 and the paddle mixer
The number of 24 may be set. However, mixing
Mixing / stirring / transfer of earth and sand and soil conditioner in vessel 20
For smooth and efficient operation, the number of paddle mixers 24 is
Even paddle mixers 24, 24 adjacent to each other are opposite to each other.
It must be rotated in the opposite direction. Both ends of the rotary shaft 25 of each paddle mixer 24 are
It is rotatably supported by bearings 27 and 27, and
The tip of the rotary shaft 25 is connected to the front end of the mixing container 20
It extends in the housing of the drive part 28 provided in series.
A transmission gear 29 is connected to the tip of each rotary shaft 25.
Thus, both transmission gears 29 and 29 mesh with each other. on the other hand
The transmission gear is connected to the output shaft of the hydraulic motor 30.
The When the hydraulic motor 30 is driven to rotate,
Both rotary shafts 25 and 25 provided with dollars 26 are mutually connected simultaneously.
Driven in the opposite direction. Furthermore, mixing container 2
As shown in FIG. 8, from the side wall part to the bottom part in 0
In addition, the surrounding wall portion 2 having a concave curved surface shape along the rotation trajectory of the paddle 26
0c, earth and sand and soil quality by this surrounding wall part 20c
Improvement material stays at the corner of the lower end of the mixing container 20
Is prevented. Further, the surrounding wall portion 20c is the driving portion 2.
8 extends to the connecting part to 8, so from FIG.
As is apparent, the improved soil discharge port 23 is formed by the surrounding wall portion 20c.
Is formed. Here, the mixing material of the mixing container 20 is supplied.
Between the inlet 22 and the improved soil outlet 23, the paddle
Of the rotary shaft 25 in the nozzle 24, the mixed material supply port 2
On the second side, the paddle 26 is provided up to the upstream position.
However, on the improved soil discharge port 23 side, the near side
(Or slightly up to the position facing the improved soil outlet 23)
Not provided. Then, both ends of the rotary shaft 25 are rotated
The mounting portion of the bearing 27 that is currently supported is the mixed material supply port 22.
More forward side, rear side than improved soil outlet 23
The Thus, the material was supplied from the mixed material supply port 22.
Sediment and soil improvement materials are mixed smoothly and reliably,
And at a constant speed without stagnation until the improved soil outlet 23
Be transported. In the rotating shaft 25, the paddle 26 is missing.
At the upper position of the improved soil outlet 23, scraping
And the member 31 is attached. This scraping part
The material 31 includes a shaft portion 31a planted on the rotary shaft 25 and the shaft 31a.
Connected to the tip of the part 31a by means such as screwing or welding
It comprises a fixed scraping plate 31b. And
The scraper plate 31b has a plate surface in the axial direction of the rotary shaft 25.
InIt is provided in parallelTherefore, rotate the rotary shaft 25
Then, the improved soil transferred to the position of the improved soil discharge port 23
Is pushed by the scraping plate 31b in the direction of dropping directly below.
Demonstrate the function to move. In addition, the volume of the mixing container 20
Enclosure 2 which is a side wall at this position in the vessel body 20a
0c is slightly smaller than the rotation trajectory of the tip of the scraping plate 31b.
The arc surface has a large curvature. Therefore
The scraping plate 31b is almost in sliding contact with the inner surface of the surrounding wall portion 20c.
Will rotate. And this scraping
The shim member 31 has a circumferential direction and an axial line with respect to the rotation shaft 25.
Take multiple positions (4 locations in Fig. 9) in different directions
It is attached. There should be 4 or more paddle mixers.
If installed above, rotate paddle mixers located at both ends.
A scraping member 31 is provided on the shaft, and the intermediate position
The dollar mixer need not be provided with a scraping member. With the above configuration, the mixing container 20 mixes.
The mixed material is mixed uniformly by the action of the paddle mixer 24.
When the improved soil discharge port 23 is reached, the soil and soil improvement material are evenly distributed.
The improved soil is mixed, and this improved soil discharges the improved soil.
Dropped from the opening 23 to the carry-out conveyor 40 constituting the discharge means 4
It is discharged as follows. Here, improved soil outlet 2
3 is located below the mixing container 20,
The carry-out conveyor 40 is positioned below the improved soil discharge port 23.
It is put. The unloading conveyor 40 extends straight as it is
If so, the improved soil cannot be deposited high, so the carry-out conveyor
By extending 40 upward diagonally, the predetermined height
From the position, the improved soil is deposited on the improved soil storage 5
ing. Here, for example, lime is used as a soil conditioner.
If so, the improved soil generated by the soil quality improvement mechanism 3
Has a aggregate structure. And make the grain size of this improved soil uniform
Therefore, the improved soil is transferred from the carry-out conveyor 40 to the vibration sieve 41.
Supply as if dropped. As a result, vibration sieve 4
1 based on the mesh size of
The good soil passes through the vibrating screen 41 and is supplied to the transfer conveyor 42.
Be paid. Then, the transfer conveyor 42 modifies again.
The good soil is conveyed obliquely upward and deposited at a predetermined position.
In addition, a large improvement in particle size that did not pass through the vibrating sieve 41
The soil moves on the vibrating screen 41 and falls from one end thereof
Will be. In addition, the modification which did not pass through the vibration sieve 41
The good soil is also deposited in a predetermined place. Thus, in the mixing container 20,
The mixed material before mixing and this mixed material are completely
Moreover, the mixed soil containing the uniformly mixed improved soil is a paddle
It is changed from the mixed material supply port 22 side by the action of the mixer 24.
It is transferred to the good earth discharge port 23 side. Paddle mixer 24 is
Whether the paddle 26 is arranged in a spiral on the rolling shaft 25
In the mixing container 20, the mixed soil is transferred linearly.
Rather than being transported, it is transported diagonally forward. However
Connecting the rotation center lines of the left and right paddle mixers 24, 24.
Transfer direction between the upper and lower sides of the horizontal plane
Is the opposite. For this purpose, the enclosure of the mixing container 20
The mixed soil facing toward the portion 20c is densely attached to the surrounding wall portion 20c.
I tried to wear it, but on the rotating shaft 25, the paddle 26
At the provided site, at the tip of this paddle 26
The mixed soil is scraped off and changed while changing direction.
It will be transferred toward the good earth discharge port 23 side. However, at the location of the improved soil outlet 23,
There is no need to move the mixed soil forward.
The rolling shaft 25 is not provided with a paddle 26. For this reason
In the paddle mixer 24, the mixed soil that has reached this position
On the other hand, a direct transfer force cannot be applied. Shi
However, since subsequent mixed soil is transferred, it is improved.
It is discharged as it is pushed out from the soil outlet 23. The paddle 26 transports the mixed soil diagonally forward.
Therefore, for some mixed soil, improved soil outlet 23
The direction to press against the surrounding wall 20c, not the direction toward
A thrust acts on the. In this way, the surrounding wall portion 20c
The mixed soil pressed against the rotor rotates together with the rotary shaft 25.
By the scraping plate 31b constituting the scraping member 31
It is peeled off as if scraped off. And this scratch
The plate member 31 has a plate surface in the axial direction of the rotary shaft 25.
It is suitable for the mixed soil during the rotation of the rotary shaft 25.
Because the thrust in the direction of the rotation axis does not act,
Just move it in the direction of rotation and move it in the axial direction.
Never do. Therefore, the scraping member 31
So that it can be smoothly discharged from the improved soil discharge port 23 by rolling.
Become. As a result of the above, mixing in the mixing container 20
Uniform and complete use of earth and sand as material and soil improvement material
Almost all of the mixed improved soil is reliably improved
23 of the mixing container 20
There is no risk of remaining attached to the inner surface. Therefore, it is always effective.
It can be maintained in a state where the soil quality can be improved smoothly and smoothly, and the soil
After the quality improvement process, clean the inside of the mixing container 20
The operation of sweeping becomes extremely easy. In the above-described embodiment, the soil
The quality improvement mechanism 3 is a stationary type. For example, FIG.
As shown, earth and sand hopper 110, soil improvement material hopper 1
11, carry-in conveyor 112, mixing container 120 and
Machinery and equipment required for soil quality improvement, such as improved soil discharge means 104
Frame provided on lower traveling body 100 having a crawler belt
If it is configured to be attached to 101, it can be used at an appropriate treatment site.
Carry it in and transport it to the most suitable position for processing
It will be possible to improve soil quality. In the figure
In the mechanism, a vibrating sieve is placed above the earth and sand hopper 110.
110a is installed, and the soil improvement material hopper 11
1 is a lower tank 111a and an upper that can be expanded and contracted vertically.
Part tank 111b. [0034] Since the present invention is configured as described above,
The mixed soil in the mixing container is the wall surface of the mixing container.
No longer remain attached to the
Smooth and reliable discharge of the improved soil generated in the container
It produces effects such as

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall configuration diagram of a soil improvement system showing an embodiment of the present invention. 2 is a cross-sectional view of an earth and sand hopper mounted on the soil quality improvement system of FIG. 1. FIG. FIG. 3 is a cross-sectional view of a soil improvement material hopper mounted on the soil improvement system of FIG. 1; 4 is an explanatory diagram of a configuration of a quantitative supply unit that constitutes the earth and sand hopper of FIG. 3; FIG. 5 is a front view of a mixing container used in the soil improvement system of FIG. 1; 6 is a right side view of FIG. 5 with the lid removed. 7 is a cross-sectional view taken along the line XX of FIG. 8 is a YY cross-sectional view of FIG. 9 is a cross-sectional view taken along the line ZZ in FIG. FIG. 10 is a front view showing the soil improvement mechanism mounted on a traveling vehicle in the embodiment of the present invention. FIG. 11 is a plan view showing the mixing container of the prior application with the lid removed. DESCRIPTION OF SYMBOLS 1 Sediment accumulation place 2 Mixed material supply part 3 Soil improvement mechanism 4 Discharge means 5 Improved soil storage 10 Sediment hopper 11 Soil improvement material hopper 20 Mixing container 22 Mixed material supply port 23 Improved soil discharge port 24 Paddle mixer 25 Rotation scraping the shaft 26 paddle 31 members 31 a shaft portion 31b scraping plate

   ──────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Fujio Sato               Hitachi Construction Machinery, 650 Kantachi-cho, Tsuchiura-shi, Ibaraki               Inside Tsuchiura factory (72) Inventor Yasuharu Yamamoto               2-6-2 Otemachi, Chiyoda-ku, Tokyo               Within Hitachi Construction Machinery Co., Ltd. (72) Inventor Tetsuro Miura               2-6-2 Otemachi, Chiyoda-ku, Tokyo               Within Hitachi Construction Machinery Co., Ltd.                (56) References JP-A-57-180425 (JP, A)                 JP-A-9-195265 (JP, A)                 JP 10-85576 (JP, A)                 JP 11-169739 (JP, A)                 Hei 4-118139 (JP, U)                 Actual Kohei 7-33867 (JP, Y2)

Claims (1)

(57) [Claims] [Claim 1] A frame, a lower traveling body provided in the frame, and a frame provided on the frame and having upper and lower ends opened.
Box-shaped container body, upper end opening of this container body will be described later
With a space above the paddle and the improved soil outlet
And a concave curve that closes the lower end opening of the container body
A mixing container composed of a surface-shaped surrounding wall, a mixed material supply port for introducing earth and sand and a soil conditioner, formed at an upper part on one end side of the mixing container, and formed at a lower part on the other end side of the mixing container. An improved soil discharge port for discharging the improved soil, a plurality of rotating shafts provided in the mixing container, and a position upstream of the mixed material supply port of the rotating shafts to a position before the improved soil discharging port. A plurality of paddles provided to be inclined while shifting the position in the axial direction and circumferential direction of the rotating shaft so as to be spiral, and the corresponding portion of the improved soil discharge port in the rotating shaft
Provided while shifting the position in the axial direction and circumferential direction of the rotating shaft
And above the improved soil discharge port pressed by the paddle
Of improved soil that adheres to and grows in this area
A plurality of scraping members for breaking the bridge ; a soil hopper provided on one side of the frame; a soil improvement material hopper provided in the frame so as to supply a soil quality improvement material; and earth and sand from the earth hopper In order to transfer the soil improvement material from the soil improvement material hopper to the mixed material supply port , a carry-in conveyor provided below the earth and sand hopper, and to discharge the improvement soil from the improved soil discharge port , A self-propelled soil quality improvement machine comprising improved soil discharge means provided on the other side of the frame.