JP2002013156A - Mobile soil improvement machine and system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile soil improvement machine and a system capable of coping with a new reqiurement of adding two or more additives to soil to be improved. SOLUTION: This soil improvement machine is provided with a soil hopper part 1A supplying the soil, a plurality of additives supply means including an additives hopper part 1B supplying first additives and second additives to the supplied soil and a additives supply device 5, a mixing device 3 introducing, agitating, and mixing the supplied soil, the first additives, and the second additives, and a discharge conveyer 8 discharging the agitated and mixed mixture.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled soil improvement machine and a soil improvement system for mixing and improving soil to be improved with an additive, and more particularly, to a soil improvement system for two or more types of soil to be improved. The present invention relates to a self-propelled soil improvement machine and a soil improvement system that can respond to new needs for adding materials.

[0002]

2. Description of the Related Art For example, in the burial work of gas pipes, water and sewage works, and other road works and foundation works,
It is desirable to backfill so-called construction soil generated by excavation. However, if the construction soil is not suitable for backfilling (for example, rock, brick, concrete,
If the soil itself is soft and backfilled, such as when there is a large amount of metal or other foreign matter, or when the soil itself is soft and backfilled, there is a possibility that land subsidence will occur ) Is to mix the soil generated by construction with a soil improvement material (solidifying material) mainly composed of lime or cement, for example, and solidify it. Filling has been done.

[0003] In such a machine for improving soil quality,
Based on the background of difficulty in securing land for a soil improvement plant or decentralization of land, for example, Japanese Patent Application Laid-Open No. 2000-4532
As described in Japanese Patent Publication No. 7, a self-propelled soil improvement machine has been proposed in which the soil improvement machine is capable of running on its own and has mobility. This self-propelled soil improvement machine includes, for example, a hopper member (sediment hopper) for receiving the earth and sand, a soil supply means for supplying the received earth and sand, a conveyance means (conveyor) for conveying the supplied earth and sand, An additive material supply means for providing an additive material to the sediment being transported, a mixing means (mixing device) for introducing and mixing the earth and sand and the additive material, and mixing the mixed mixture. Discharging means (discharging conveyor) for discharging.

[0004]

In the above-mentioned prior art self-propelled soil improvement machine, the earth and sand (improvement target soil) put into the earth and sand hopper by, for example, a hydraulic shovel or the like is transported by a transport means, and during the transport. After adding an additive (for example, a solidified material such as quick lime or a soil improvement material), the earth and sand and the additive are introduced into a mixing means and agitated and mixed, and the mixture (improved soil) is discharged and carried out by a discharge means. Has become. In recent years, under the background of the promotion of waste recycling, such as the enforcement of the Recycling Resources Promotion Law (the so-called Recycling Law) (October 1991), the need for soil improvement of construction soil has been increasing more and more. The nature and condition of sediment is becoming extremely diverse. Therefore, as an improvement target soil of the soil improvement machine, for example, a sandy soil with a high sand content and a low degree of adhesion, such as a highly adhesive clay,
Some of the soils are very different. Further, there may be a case where the materials having different water contents are mixed in each of them, and a case where the clay-like soil is compressed into a mass is further mixed.

[0005] In such a background, in recent years, improvement has been made in order to more reliably improve (strength improvement) the soil to be improved or to add another function to the soil to be improved in addition to the strength enhancement. There is a new need to add two or more types of additives to the target soil.

[0006] For example, it is difficult to improve the strength of a soil to be improved having a high water content with only a normal solidifying material.
When it is expected that an enormous amount will be required, in addition to quick lime as a normal solidifying material, a polymer-based additive with a dehydration and absorption function is also added, and we want to improve the strength reliably. There are cases. Also, for example, when improving soil in the ground or park, in addition to improving the strength by adding quick lime as a normal solidifying material to soil and sand, adding porous aggregate to improve drainage There is also. Alternatively, a fertilizer and a plant seed may be added to the soil during the greening work.

[0007] In the above prior art, since only one kind of additive can be added to the earth and sand from the earth and sand supply means by the additive material supply means, the above new needs cannot be met.

It is an object of the present invention to provide a self-propelled soil improvement machine and a soil improvement system which can respond to a new need to add two or more types of additives to the soil to be improved.

[0009]

(1) In order to achieve the above object, a self-propelled soil improvement machine according to the present invention comprises a soil supply means for supplying soil and a first additive material for the supplied soil. And a plurality of additive supply means including a first additive supply means and a second additive supply means for respectively supplying the first and second additive materials, and the supplied earth and sand, the first additive material, and the second additive material. A mixing means for stirring and mixing, and a discharging means for discharging the stirred and mixed mixture are provided.

In the present invention, the first additive is supplied to the earth and sand (improvement target soil) supplied by the soil supply means by the first additive supply means and the second additive is supplied by the second additive supply means.
The additive is supplied, the earth and sand, the first additive and the second additive are stirred and mixed by the mixing means and discharged by the discharge means. In this way, by adopting a configuration in which two or more types of additives can be added to the soil to be improved, new needs in recent years can be met.

That is, for example, by adding a polymer-based additive as the first additive and quicklime as the second additive to the soil to be improved having a high water content, it is possible to surely improve the strength. Further, for example, by adding porous aggregate as the first additive and quicklime as the second additive to the soil to be improved, a function of improving drainage in addition to the strength can be added. Alternatively, it is also possible to add a fertilizer as the first additive and a plant seed as the second additive to the soil to be improved during the greening work.

(2) In the above (1), preferably,
The earth and sand supply means includes earth and sand hopper means for receiving earth and sand, and the first additive material supply means includes an additive material hopper means for receiving the first additive material.

As exemplified in the above (1), for example, when porous aggregate and quick lime are added as additives to the soil to be improved, the porous aggregate is different from quick lime and the mixing ratio to the soil to be improved is different. Is relatively large. Therefore, the first
By providing the additive hopper means as the additive supply means and receiving and supplying the porous aggregate as the first additive to the additive hopper means, smooth and efficient reception and supply become possible.

(3) In the above (2), more preferably, the earth and sand hopper means comprises a region on one side of two regions provided in one hopper member and separated from each other by a partition wall, The additive hopper means comprises a region on the other side of the two regions.

(4) In the above (3), more preferably, it is provided commonly below the above-mentioned one side area and below the above-mentioned other side area, and the one side area and the other side are provided. And common transport means for transporting the earth and sand and the first additive material respectively supplied from the area.

(5) In the above (2), preferably, the earth and sand hopper means and the additive hopper means comprise:
It consists of two hopper members provided separately from each other.

(6) In the above (5), more preferably, two transport means provided below the two hopper members, respectively, for transporting the earth and sand and the first additive supplied from each hopper member, respectively. Further provided.

(7) In the above (1), preferably, the first additive supply means includes first additive tank means for storing the first additive, and The means comprises a second additive tank means for storing the second additive.

As exemplified in the above (1), for example, when quicklime and a polymer additive are added to the soil to be improved, the mixing ratio of the polymer additive to the soil to be improved is the same as that of quicklime. Relatively small. Therefore, the first and second
By providing first and second additive material tank means as additive material supply means and storing and supplying the polymer-based additive and quicklime, respectively, smooth and efficient reception and supply become possible.

(8) In order to achieve the above object, a self-propelled soil improvement machine according to the present invention includes a main body frame, running means provided on the main body frame, and a partition wall provided on the main body frame. One hopper member for receiving the earth and sand in one of the two partitioned areas and receiving the first additive material in the other side area; and a hopper member below the one side area and the other side. A common conveying means that is provided in common below the area and conveys the earth and sand and the first additive supplied from the area on one side and the area on the other side, and is provided on the one hopper member; Earth and sand amount adjusting means and an additive amount adjusting means for respectively adjusting the earth and sand conveying amount and the first additive amount conveyed by the common conveying means from the one side area and the other side area; For earth and sand and the first additive An additive tank means for adding the second additive, mixing means for introducing and mixing the earth and sand, the first additive, and the second additive, and mixing and discharging the mixed mixture. Means.

(9) In order to further achieve the above object,
The soil improvement system according to the present invention includes a soil supply means for supplying earth and sand, a transportation means for transporting the supplied earth and sand, an addition space provided in the transportation means for adding a first additive to the supplied earth and sand. , The supplied earth and sand and the first
A second additive supply means for supplying the second additive to the additive, a mixing means for introducing and stirring and mixing the supplied earth and sand, the first additive and the second additive, and discharging the mixed mixture. A self-propelled soil improvement machine provided with a discharge means for performing the operation, and an external additive supply means provided outside the self-propelled soil improvement machine and configured to supply the first additive to the addition space.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the entire structure of one embodiment of the self-propelled soil conditioner of the present invention, and FIG. 2 shows the entire structure of one embodiment of the self-propelled soil conditioner of the present invention. It is a top view.

In FIG. 1 and FIG. 2, the self-propelled soil improvement machine 100 includes a sediment to be improved (hereinafter referred to as appropriate).
The first soil to be added and supplied to this soil
Additives (described later) are charged, respectively, and the hopper 2A and the hopper 2A, which internally form a sediment hopper 1A and an additive hopper 1B for receiving and temporarily storing the input sediment and the first additive, respectively. A mixing device (treatment tank) 3 for stirring and mixing the earth and sand and the first additive supplied from the additive hopper 1B with a second additive (described later) and discharging the mixture downward, the earth and sand hopper 1A and the Equipped with a conveyor 4 for transporting and introducing the earth and sand and the first additive introduced from the additive hopper 1B to the mixing device 3, and an additive supply device 5 for supplying the second additive. After receiving the mixture agitated and mixed by the mixing device 3 and discharged downwardly, the self-propelled soil improvement device 100, and the traveling body 7 provided below the soil improvement device body 6 And a discharge conveyor 8 to the side (the other longitudinal side of the later-described body frame soil improvement machine mounting portion 9A, the right side in FIG. 2) transported discharged to (out).

The traveling body 7 includes a main body frame 9 and a left / right crawler track 10. Body frame 9
As shown in FIG. 3, which is a view seen from the direction A in FIG. 1, the hopper 2, the mixing device 3, the additive supply device 5, and a power unit described below are formed by, for example, a substantially rectangular frame. (Machine room) Soil improvement machine mounting portion 9A constituting a chassis on which 64 and the like are mounted, and a track frame portion (leg portion) connecting the soil improvement machine mounting portion 9A and the left / right crawler track 10 described above. 9B. In addition, the endless track crawler 10 is connected to the track frame 9
B is extended between a driving wheel 11 and a driven wheel (idler) 12 rotatably supported by B, and a driving force is applied by a left / right traveling hydraulic motor 13 provided on the driving wheel 11 side. Thus, the self-propelled soil improvement machine 100 is driven.

Referring back to FIGS. 1 and 2, the conveyor 4 is provided from one side in the longitudinal direction of the main body frame soil improvement device mounting portion 9A (the front side of the self-propelled soil improvement device 100, the left side in FIG. 1). The other side (the rear side of the self-propelled soil conditioner 100,
1 (right side in FIG. 1). The conveyor 4 is wound around a frame 14 and a driving wheel 15 and a driven wheel (idler) 16 supported by the frame 14 and driven by a hydraulic motor for the conveyor (not shown). And a roller (carrier roller) 18 for supporting a transport surface of the transport belt 17
And a tension adjusting mechanism 19 that can adjust the tension (tension) of the transport belt 17 by making the supporting position of the driven wheel 16 on the frame 14 variable.
Is circulated to transport the earth and sand and the first additive from the earth and sand hopper 1A and the additive hopper 1B to the downstream side (the right side in FIG. 1).

The hopper 2 is provided with a support post 20a (FIG. 3) standing upright on the body frame soil improvement machine mounting portion 9A.
(See also FIG. 3)
The upper end is fixed via an intermediate member 21, and the lower end thereof is inclined at an angle corresponding to the inclination angle of the conveyor 4. The hopper 2 has a bottomless box-like shape (in other words, a substantially rectangular tube shape or a frame shape) whose diameter increases upward in order to smoothly charge the earth and sand. I have. At this time, the dimension of the opening (supply port) at the lower end of the hopper 2 in the width direction of the self-propelled soil improvement machine 100 is equal to or slightly smaller than the width of the conveyor belt 17 of the conveyor 4. . Thus, the upper side mainly performs the function of receiving earth and sand and the first additive, and the lower side performs the function of supplying earth and sand and the first additive to the conveyor 4.

That is, the hopper 2 comprises four lower side walls 2aL, 2bL, 2cL and 2dL which constitute a lower frame and also internally constitute a supply part which performs the supply function.
Among them, the upper frame (substantially frame) is provided above three lower sidewalls 2aL, 2bL, and 2dL except for the lower sidewall 2cL on the front side of the self-propelled soil improvement machine 100, and has a larger diameter than the lower frame. ) Constituting the upper peripheral side walls 2aU, 2b
U, 2dU.

The upper side walls 2aU, 2bU, 2
dU and the lower side walls 2aL, 2bL, 2cL, 2dL
Of the upper and lower side walls 2aU, 2cU located on the downstream side and the upstream side in the feed direction (conveyance direction) of the conveyor 4
And 2aL, 2cL are divided into two in the width direction of the self-propelled soil conditioner 100 (vertical direction in FIG. 2 and horizontal direction in FIG. 3). (In other words, the transport direction of the transport conveyor 4). The earth and sand hopper section 1A includes, for example, a self-propelled soil improvement machine 1 of a partition wall 2e in the interior of the earth and sand hopper 2.
The additive material hopper portion 1B is provided in a region on one side (upper side in FIG. 2 and left side in FIG. 3) in the width direction 0, and the partition wall 2e in the earth and sand hopper 2 is, for example, self-propelled. The other side in the width direction of the type soil improvement machine 100 (lower side in FIG. 2, right side in FIG. 3)
Area.

FIG. 4A is an enlarged side sectional view taken along the line IV _A- IV _{A in} FIG. 2 showing a detailed structure of the hopper 2.
(B) is a sectional view taken along middle IV _B -IV _B sectional FIG 4 (a). 4 (a) and 4 (b), the lower side wall 2aL includes the amount of sediment supplied from the inside of the soil hopper 1A and the additive hopper 1B to the downstream mixing device 3 and the first amount. Supply amount (opening) adjusting mechanisms 22a and 22b for adjusting the amount of the additive material are provided.

The supply amount adjusting mechanisms 22a and 22b are
The earth and sand supply openings (gates) 2aA and 2aB provided in portions of the lower side wall 2aL facing the earth and sand hopper 1A and the additive hopper 1B, and the earth and sand supply openings 2aA and 2aB. Gate plates 23a and 23b for variably adjusting the opening area are provided.

The earth and sand supply openings 2aA and 2aB are
The heights are almost the same as each other, and each width direction (= width direction of the self-propelled soil improvement machine, left-right direction in FIG. 4B)
Is slightly smaller than 幅 of the width of the conveyor belt 17 of the conveyor 4. The gate plate 23
a and 23b are the corresponding openings 2a for soil and sand supply, respectively.
A and 2aB have width-direction dimensions substantially the same (may be slightly larger). At this time, each gate plate 23 has a substantially vertical elongated hole 24 on both sides in the width direction, and the elongated hole 24 in the lower side wall 2aL.
A mounting bolt 26a (see FIG. 4 (a)) is provided so as to penetrate the through hole 25 provided at a portion corresponding to the above, and the mounting bolt 26a is further penetrated through the elongated hole 24, and a nut 26b is fastened in this state. As a result, the lower side wall 2a
It is attached to L. Then, by loosening the nut 26b and sliding (sliding) each gate plate 23 freely in a substantially vertical direction, the nut 26b is tightened again,
Sediment supply openings 2aA, 2aB by each gate plate 23
Can be freely adjusted and set to a desired value.

The earth and sand hopper 1A of the hopper 2
The additive material hopper portion 1B is located below the hopper portions 1A and 1B and receives the earth and sand and the first additive material respectively supplied through the upper openings of the hopper 2.
A and 1B are dropped and mounted on the transport belt 17 of the common transport conveyor 4 and transported to the downstream side. At this time, of the input soil and first additive material transported on the transport belt 17 The amount of the bulk passing through the supply amount adjusting mechanisms 22a and 22b (= the height H1, the lower end of the gate plates 23a and 23b,
Only the amount of H2 (see FIG. 4 (b)) is drawn out of the hopper 2 as shown by the arrow a in FIG. . Thus, the transport speed of the transport belt 17 on the transport conveyor 4 and the earth and sand supply opening 2a of the supply amount adjusting mechanisms 22a and 22b are set.
A, 2aB (hopper 2)
And the first additive are set in such a manner that they do not overflow into the soil and the first additive.
A and the additive hopper 1B are supplied to the mixing device 3.

Returning to FIGS. 1 and 2, four (or three, but partially omitted in FIG. 1) of the additive supply devices 5 are provided on the body frame soil improvement machine mounting portion 9A. Is supported by, for example, a substantially rectangular base plate 33 provided on the support 32. At this time, the transport conveyor 4 has a downstream end extending between the column 32 and another column 32 as viewed in FIG. 1. 4 A predetermined amount of the second additive is added on the conveyor 4 to the earth and sand supplied from the hopper 2 by an additive supply device 5 immediately above the downstream end. That is, the additive supply device 5 is provided with an additive tank (also referred to as an additive hopper) 34 for storing a predetermined amount of the second additive, and is provided below the additive tank 34 so that the second additive is added in predetermined amounts. Feeder 35 for supplying material
And

The additive material tank 34 has a substantially cylindrical shape as a whole, and has a space for storing the second additive material therein. The additive material tank 34 has a large capacity for storing the second additive material, and has a self-propelled soil conditioner. The height is variable so that the height can be reduced when the entire 100 is transported by a trailer or the like.

That is, the lower portion of the additive material tank 34 is installed on the base plate 33, and the lower tank portion 3 having a bottomed cylindrical shape is provided.
6, a top plate portion 37, and a bellows portion 38 as an upper tank portion having a variable upper volume provided between the lower tank portion 36 and the top plate portion 37.

An attachment portion 39 is provided on the top plate portion 37, and the attachment portion 39 has a support rod 40 suspended therefrom, corresponding to a position where each support rod 40 of the base plate 33 is suspended. The guide tube 41 is provided upright at a position where the guide tube 41 is located. At this time, a pin insertion hole 42 is provided at an upper portion and a lower portion of the support rod 40, respectively, and an insertion hole 42 provided below the support rod 40 with respect to the pin insertion hole 43 provided in the guide cylinder 41 (FIG. When the stopper pin (not shown) is inserted in a state where they are aligned with each other (not shown in FIG. 1), the bellows portion 38 is held in an extended operating state (the state shown in FIG. 2), and When the stopper pin is inserted by aligning the provided pin insertion hole 42 with the pin insertion hole 43, the bellows portion 38 is held in the retracted state.

A bottom plate (not shown) of the lower tank portion 36
Is provided with an additive supply opening having a predetermined opening diameter, and the second additive is supplied to the feeder 35 from this opening. The feeder 35 is a so-called rotary feeder, in which a rotor (not shown) rotatably driven by a not-shown feeder motor (electrically or hydraulically driven) is provided.
A plurality of partitions (not shown) are radially provided on the rotor, and every time the rotor rotates a predetermined angle, the second additive material corresponding to the space between the adjacent partitions is separated, and the space is separated. Of the second additive material is supplied in a fixed amount. Thus, by controlling the rotation speed of the feeder motor, the supply amount (addition ratio) of the second additive is controlled, and the mixing ratio of the earth and sand and the first and second additive materials is exactly constant. You can do it. Specifically, for example, the transporting amount of the earth and sand and the first additive by the transport conveyor 4 is detected by a detection unit (not shown) (or the amount of the mixture of the soil, the first additive, and the second additive by the discharge conveyor 8 is detected). Accordingly, the transport amount of the earth and sand and the first additive by the transport conveyor 4 may be detected indirectly), and the drive of the feeder hydraulic motor is controlled in accordance with the detected amount.

FIG. 5 is a side sectional view showing a detailed structure of the mixing device 3, and FIG. 6 is a horizontal sectional view taken along the line VI-VI in FIG.

5 and 6, the mixing device 3
Is a mixing device main body (tank main body) which is provided at an intermediate portion in the longitudinal direction of the truck frame soil improvement machine mounting portion 9A and is arranged in a longitudinal direction (= substantially horizontal direction).
44 and the self-propelled soil improvement machine 10 of the mixing device main body 44.
0 A self-propelled cylinder of the mixing device main body 44, which is provided at the upper part on the front side and forms an introduction part for introducing the earth and sand, the first additive, and the second additive from the conveyor 4. A discharge cylinder 46 provided in the lower part on the rear side of the soil conditioner 100 and constituting a discharge section, and an even number (two in this embodiment) of paddle mixers 47 provided in the mixing apparatus main body 44 in parallel with each other. Have.

The mixing device main body 44 has a maintenance opening 44a and a detachable lid member 48 for closing the opening.
The opening 44a, the introduction cylinder 4
5 and a portion other than the discharge cylinder 46 have a sealed structure. In addition, as shown in FIG. 7, which is a cross-sectional view taken along the line VII-VII in FIG. 5, the bottom of the mixing device main body 44 has a curved upper portion that has a curved surface shape substantially coinciding with a rotation path of a paddle 51 described later. A member 49 is provided to prevent the earth and sand, the first additive, and the second additive from staying at the corners of the lower end of the mixing device main body 44 or the like.

Referring back to FIGS. 5 and 6, a large number of the paddle mixers 47 are intermittently mounted (intermittently) on the rotating shaft 50 by changing positions in the front-rear direction and the rotating direction as a stirring / transferring member on the rotating shaft 50. Of the rotating shaft 50 and bearings 52a and 52b having bearings (not shown) for rotatably supporting both ends of the rotating shaft 50.

At this time, the rear end of the rotating shaft 50 (the right end in FIGS. 5 and 6) extends into a driving section 53 provided at the rear end of the mixing device main body 44. A transmission gear 54 (see FIG. 6) is connected to the rear end of each rotating shaft 50, and the two transmission gears 54, 54 mesh with each other. And 2
One of the transmission gears 54, 54 (upper side in FIG. 6) is meshed with a drive gear 56 provided on the output shaft of the mixing hydraulic motor 55, and by rotating these mixing hydraulic motors 55, The two rotating shafts 50, 50 are simultaneously and rotationally driven in opposite directions (see arrows in FIG. 7).
It has become.

At this time, a large number of the paddles 51 are installed at a predetermined angle (for example, every 90 °) as shown in FIG. 7, and the rotation shaft 50 is rotated as described above. Accordingly, while the paddle 51 is rotated and driven, the earth and sand, the first additive, and the second additive introduced into the mixing device main body 44 are crushed and stirred, and are uniformly mixed.
It is transported toward the discharge cylinder 46 side. The transfer amount can be appropriately adjusted by changing the angle of the paddle 51.

As described above, the earth and sand, the first additive, and the second additive introduced from the introduction cylinder 45 of the mixing device main body 44 are uniformly stirred and mixed by the action of the paddle mixer 47, and The mixture is transferred to the discharge cylinder 46, and a mixture (improved soil) is produced during the transfer. The improved soil thus produced is discharged from the discharge cylinder 46 onto the discharge conveyor 8 by the action of its own weight.

Returning to FIGS. 1 and 2, the discharge conveyor 8 has a frame 57, a drive wheel 59 and a driven wheel (idler, see FIG. 3) supported by the frame 57 and driven by a discharge conveyor hydraulic motor 58. ) 60 and a roller (carrier roller) 62 for supporting a conveying surface of the belt 61.
And a tension adjusting mechanism (not shown) that can adjust the tension (tension) of the transport belt 61 by making the supporting position of the driven wheel 59 in the frame 57 variable, and
The mixture (improved soil) that has fallen onto the transport belt 61 from the mixing device 3 is conveyed by circulating the device 1 and discharged from the transport side (right side in FIG. 1) end.

Here, the transport conveyor 4, the mixing device 3, the discharge conveyor 8, and the crawler track 10 are provided with a power source provided in the self-propelled soil improvement machine 100, that is, an engine (not shown) as a prime mover. And at least one hydraulic pump (not shown) driven by the engine. The pressure oil from the hydraulic pump is passed through a control valve device (not shown) having a control valve for controlling the direction and flow rate of the pressure oil,
The transport conveyor hydraulic motor, the mixing hydraulic motor 55, the discharge conveyor hydraulic motor 58, and the left / right running respectively corresponding to the transport conveyor 4, the mixing device 3, the discharge conveyor 8, and the crawler track 10. , And the corresponding hydraulic motor is driven to rotate.

The engine, the hydraulic pump, and the control valve device are all provided with a power unit mounting member (a support) on the upper portion of the other end (the right side in FIG. 1) in the longitudinal direction of the main body frame soil improvement machine mounting portion 9A. ) 63 are provided in a power unit 64 mounted on the power unit 64.

In the above, the crawler track 10 constitutes the traveling means provided on the main body frame described in each claim, and the hopper 2 constitutes one hopper member provided on the main body frame.

Further, the earth and sand hopper section 1A is constituted by an earth and sand hopper means for receiving the earth and sand which is formed of one of the two areas partitioned by the partition wall.
“a” constitutes a sediment amount adjusting means for adjusting the amount of sediment transported from the one side area, and these two constitute a sediment supply means for supplying the earth and sand. In addition, the additive hopper section 1B constitutes an additive hopper means which is composed of an area on the other side of the two areas partitioned by the partition wall and receives the first additive in the area on the other side. The mechanism 22b constitutes an additive amount adjusting means for adjusting the first additive amount from the area on the other side.
It constitutes an additive supply means.

Further, the mixing device 3 constitutes mixing means for introducing and mixing the earth and sand, the first additive material and the second additive material and stirring them, and the conveyor 4 is provided below the area on one side and on the other side. , And constitutes a common transporting means for transporting the earth and sand and the first additive supplied from the one side area and the other side area. In addition, the discharge conveyor 8 constitutes a discharge unit that discharges the mixture that has been stirred and mixed. Further, the additive material tank 34 constitutes an additive material tank means for adding the second additive material to the conveyed earth and sand and the first additive material. On the other hand, a second additive supply means for supplying the second additive is provided.

Next, the self-propelled soil conditioner 10 of the present invention is described.
The operation of the first embodiment will be described. FIG. 8 is a top view illustrating an example of an operation state of the self-propelled soil conditioner 100. In FIG. 8, a soil to be improved (for example, construction-generated soil) and a first additive that have been previously deposited in a soil yard M and an additive storage N in a predetermined yard are scooped by a bucket 201 of a hydraulic shovel 200, and are self-propelled. The soil to be improved is put into the soil hopper 1A of the hopper 2 of the soil improving machine 100, and the first additive is put into the additive hopper 1B. The soil to be improved and the first additive added and received are stored in the earth and sand hopper 1A and the additive hopper 1B by the action of their own weight, and are conveyed by the transport belt 17 of the transport conveyor 4 below.
The self-propelled soil improvement machine 100 is transported toward the rear. At this time, as described above, the supply amount adjusting mechanism 2
The cutout height of the earth and sand and the first additive is adjusted by the gate plates 23a and 23b of 2a and 22b, whereby the mixing ratio of the earth and sand and the first additive is made constant, and the second additive added later is also included. Keep these three mixing ratios constant,
The quality of the improved soil is stabilized.

Thereafter, a predetermined amount of the second additive is added from the additive supply device 5 to the surface of the conveyed earth and sand and the first additive near the downstream end of the transport conveyor 4 in the transport direction. These mixtures are introduced into the mixing device 3. The earth and sand, the first additive, and the second additive introduced into the mixing device 3 are uniformly stirred and mixed by the paddle mixer 47 in the mixing device main body 44 to be improved soil and discharged onto the belt 61 of the discharge conveyor 8. Is done. And the improved soil is discharged conveyor 8
Is further transported to the rear of the self-propelled soil conditioner 100, finally discharged (removed) from the rear of the self-propelled soil conditioner 100, and deposited at a predetermined position P in the yard.

As described above, the self-propelled soil improvement machine 100 according to the embodiment of the present invention has a configuration in which two types of additives can be added to the soil to be improved. It is possible to respond to new needs. That is, for example,
By adding porous aggregate as the first additive and quicklime as the second additive to the soil to be improved, it is possible to add another function of improving drainage in addition to the strength of the soil to be improved.

Here, when the porous aggregate is added as the first additive to the soil to be improved as described above, the ratio of the porous aggregate to the soil to be improved is different from that of quicklime as the second additive. Relatively large. Therefore, instead of storing and supplying the first additive in the tank means as in a self-propelled soil conditioner 100A according to another embodiment of the present invention described later with reference to FIG. By receiving and supplying the porous aggregate to the mixing device 3 by the hopper 1B, smooth and efficient reception and supply can be performed.

Conventionally, when an improved soil is produced by stirring and mixing the above-mentioned earth and sand, the first additive and the second additive, for example, the earth and sand hopper and the earth and sand from the earth and sand hopper are transported. Stationary earth and sand conveyor
An additive hopper, a stationary additive transport conveyor for transporting the first additive from the first additive hopper, and earth and sand from the earth and sand transport conveyor and a first additive from the additive transport conveyor, respectively. A stationary introduction conveyor that is introduced (joined) and conveyed, and earth and sand and the first additive are introduced from the introduction conveyor, and the second additive is additionally introduced from the second additive hopper. A plant must be provided with a stationary mixing device that stirs and mixes the first additive material and the second additive material to obtain improved soil, and a stationary discharge conveyor that discharges the improved soil. As a result of requiring such a large number of stationary equipment, a large space is required for installation of the plant, and it is difficult to work in a narrow place. In addition, a great deal of time and labor is required from the installation of the plant to the start of operation and from the end of operation to the withdrawal, and it is difficult to improve the mobility. On the other hand, in the self-propelled soil improvement machine 100 according to the embodiment of the present invention, the hopper 2 having the earth and sand hopper 1A and the additive hopper 1B on the main body frame 9 (or lower part). Since the conveyer 4, the additive supply device 5, the mixing device 3, and the discharge conveyor 8 are arranged in a concentrated manner and can be self-propelled by the crawler track 10, the mobility can be improved and the required operating space can be reduced. Work can be done easily even in confined areas.

Further, when the present invention is to be applied to a known self-propelled soil improvement machine having a sand hopper, a conveyor, an additive supply device, a mixing device, and a discharge conveyor, a partition wall 2e is added. And supply amount adjusting mechanism 22
Since the above structure can be realized only by providing two a and 22b, there is also an effect that the remodeling cost is low.

In the above embodiment of the present invention, a porous aggregate is used as the first additive, and the drainage property is additionally provided to the soil to be improved. However, the present invention is not limited to this. As the first additive, for example, good-quality soil, crushed stone, and the like are also conceivable.

In the embodiment of the present invention, the partition wall 2e is provided at a position that divides the inside of the earth and sand hopper 2 into approximately two equally in the width direction of the self-propelled soil improvement machine 100. There is no limitation, and the installation position may be set so as to be an optimum position according to the mixing ratio of the earth and sand and the first additive. Also, for example, the partition wall 2e is connected to the upper and lower side walls 2aU, 2a.
If it is made to be selectively attachable and detachable to mounting parts (bolts may be fixed or may be inserted into cutouts) provided at a plurality of places in the width direction of the self-propelled soil improvement machine of cU and 2aL, 2cL, The ratio at which the partition is divided can be appropriately changed. In this case, the supply amount adjusting mechanisms 22a and 22b provided on the lower side wall 2aL are integrated, and one earth and sand supply opening (gate) and one gate plate for adjusting the opening area are provided on the lower side wall 2aL. May be raised and lowered, the supply amount of the earth and sand and the first additive may be adjusted by the supply amount adjustment mechanism, and the mixing ratio (supply ratio) may be set by the above-described variable partition wall. Further, by removing the detachable partition wall 2e, it can be used as a device for mixing one type of soil to be improved and one type of additive as in a conventional self-propelled soil improvement machine. Can also. Further, if the soil to be improved is introduced into both the soil hopper 1A and the additive hopper 1B without removing the partition wall 2e, it goes without saying that the soil can be used similarly to the conventional self-propelled soil improvement machine. No.

Further, in the embodiment of the present invention, one partition wall 2e is provided to divide the inside of the earth and sand hopper 2 into two. However, three or more hoppers 2 are further provided by adding the partition wall 2e. It is needless to say that if the partitioning is performed, it is possible to further add various kinds of additives.

In one embodiment of the present invention, the earth and sand hopper 1A and the additive hopper 1B are connected to one side (upper side in FIG. 2) of the partition wall 2e of one hopper 2. (Lower side in FIG. 2), and the earth and sand supplied from the earth and sand hopper 1A and the additive hopper 1B and the first additive are transported by the common transport conveyor 4, but the structure is not limited to this. However, other structures are conceivable without departing from the technical idea and spirit of the present invention. Hereinafter, such modified examples will be sequentially described. In addition, in each figure, the same code | symbol is attached | subjected about the member equivalent to the self-propelled soil improvement machine 100 of one Embodiment of this invention,
A description will be appropriately omitted.

Structure of Providing Separate Hopper and Conveyor FIG. 9 is a main part of a modification of the embodiment of the self-propelled soil improvement machine of the present invention in which two hoppers and two separate conveyors are provided. It is a front view showing a structure, and is a figure substantially corresponding to FIG. 3 demonstrated previously.

In FIG. 9, in this modification, instead of the hopper 2 of the embodiment of the present invention, a sediment hopper 65 for supplying earth and sand and an additive hopper 66 for supplying the first additive are self-propelled. The soil transport conveyor 67 and the additive transport conveyor 68 are arranged in parallel below the soil hopper 65 and the additive hopper 66 in parallel in the width direction (left and right direction in FIG. 9) of the type soil improvement machine. Provided.

The earth and sand hopper 65 and the additive hopper 66
Like the hopper 2 of the self-propelled soil conditioner 100 according to the embodiment of the present invention, the hopper 2 includes four lower side walls 65L and 66L and three upper side walls 65U and 66U. The contacting part is a common partition wall 69.

The earth and sand conveyor 67 and the additive material conveyor 68 are the same as the conveyors 4 of the self-propelled soil improvement machine 100 according to the embodiment of the present invention, and have the frames 67a and 6a.
8a, a driving wheel (not shown), driven wheels 67b, 68b, transport belts 67c, 68c, etc., respectively, and by driving the transport belts 67c, 68c in circulation, the earth and sand from the soil hopper 65 and the additive hopper 66 are provided. And the first additive is transported downstream. At this time, the lower side wall 6 of the earth and sand hopper 65 and the additive hopper 66
Although not shown, the supply amount adjusting mechanism 22a of the self-propelled soil improvement machine 100 according to the embodiment of the present invention is not illustrated in a portion of the 5L and 66L located downstream of the transport conveyors 67 and 68 in the transport direction. , 22b, there is provided a supply amount adjusting mechanism provided with a gate plate for adjusting the amount of sediment and the amount of the first additive material from inside the soil hopper 65 and the additive material hopper 66, respectively. Then, the input earth and sand that are conveyed on the conveyor belts 67c and 68c of the conveyors 67 and 68
Only the bulk of the first additive that has passed through the supply adjustment mechanism is led out of the hoppers 65 and 66 and is supplied to the mixing device 3.

Although not shown in detail, the additive material supply device 5 supplies the first additive material transported on the earth and sand transport conveyor 67 or the first additive material transported on the additive material transport conveyor 68. A predetermined amount of the second additive is supplied.

In the above description, the earth and sand hopper 65 and the additive hopper 66 constitute two separately provided hopper members described in each claim.
Reference numeral 5 designates earth and sand hopper means for receiving earth and sand, and a corresponding supply amount adjusting mechanism constitutes earth and sand amount adjusting means for adjusting the amount of earth and sand transported, and these two constitute earth and sand supply means for supplying earth and sand. Further, the additive hopper 66 constitutes additive hopper means for receiving the first additive, and the corresponding supply amount adjusting mechanism constitutes additive amount adjusting means for adjusting the first additive amount. A first additive supply means for supplying the first additive to the earth and sand is configured. Further, the earth and sand transport conveyor 67 and the additive material transport conveyor 68 constitute two transport means for respectively transporting the earth and sand and the first additive material supplied from each hopper member.

In this modification, the supply amount of the earth and sand and the first additive can be adjusted by raising and lowering the gate plate by the supply amount adjusting mechanism corresponding to each of the earth and sand hopper 65 and the additive hopper 66. The supply amount can also be adjusted by individually adjusting the circulating drive speed of the conveyor belts 67c and 68c of the conveyor 67 and the additive material conveyor 68. Therefore, there is an effect that the supply amount can be adjusted more easily and accurately.

Structure in which a hopper and a conveyor are provided in two stages, upper and lower (part 1) FIG. 10 shows an embodiment of the self-propelled soil improvement machine of the present invention, in which the hopper and the conveyor are separated from each other. Lower 2
It is a side view showing the whole structure of the modification provided in the step, and is a figure substantially equivalent to FIG. 1 demonstrated previously.

Referring to FIG. 10, in this modification, the earth and sand conveyor 67 and the additive material conveyor 6 of the above-described modification are used.
8 are provided in the upper and lower two stages so as to be substantially parallel to each other (however, the lower sand transport conveyor 67 has a longer transport distance), and the corresponding positions of the soil hopper 65 and the additive hopper 66 are also higher. -It is provided side by side so as to be in the lower two tiers.

The lower soil hopper 65 is provided with the support post 20 erected on the main body frame soil improvement machine mounting portion 9A.
a1, 20a2, and 20a3, the supporting posts 20a1, 20a
An intermediate member (not shown) is attached to the supporting member 20b1 provided on the a2.
The upper part is fixed via the
Is a supporting member 20b provided on the supporting posts 20a2, 20a3 among the supporting posts 20a1, 20a2, 20a3.
The upper part is fixed to 2 via an intermediate member (not shown).

Then, as the earth and sand (improvement target soil) is conveyed on the earth and sand conveyor 67, the first addition material which has been conveyed on the upper additive material conveyor 68 at the downstream side of the earth and sand conveyor 67. The material is introduced and added by flowing down from the downstream end of the additive material conveying conveyor 68, and further near the downstream end of the earth and sand conveying conveyor 67 on the downstream side, the additive material is supplied to the soil and the first additive material. Device 5
The feeder 35 supplies a predetermined amount of the second additive.

According to this modification, the same effects as those of the above modification can be obtained. Further, since the charging position of the earth and sand and the charging position of the first additive are clearly separated from each other, there is an effect that the respective charging becomes easier.

A structure in which a hopper and a conveyor are provided in two stages, upper and lower (part 2) FIG. 11 shows an embodiment of the self-propelled soil conditioner of the present invention, in which the hopper and the conveyor are separated from each other. FIG. 12 is a side view showing the overall structure of another modified example provided in two stages, and FIG. 12 is a diagram showing one embodiment of the self-propelled soil conditioner of the present invention, in which the hopper and the conveyor are separated from each other. It is a top view showing the whole structure of another modification provided in the step. 11 and 12, in this modification, the additive material hopper 66 and the conveyance conveyor 68 constituting the upper stage of the upper and lower two-stage structure of the hopper and the conveyance conveyor in the above modification are moved in their longitudinal direction (conveyance). The conveying direction of the conveyor 68 is substantially perpendicular to the longitudinal direction of the earth and sand hopper 65 and the conveying conveyor 67 constituting the lower stage (the conveying direction of the conveying conveyor 67) (in other words, the left side of the self-propelled soil improvement machine). (To protrude). At this time, although detailed illustration is omitted, as described above, the lower side walls 65L and 65L of the earth and sand hopper 65 and the additive hopper 66 are provided.
A portion of the 66L, which is located downstream of the conveyors 67 and 68 in the transport direction, has a soil hopper 65 similar to the supply amount adjustment mechanisms 22a and 22b of the self-propelled soil improvement device 100 according to the embodiment of the present invention. A supply amount adjusting mechanism provided with a gate plate for adjusting the amount of sediment and the amount of the first additive from the inside of the additive hopper 66, respectively.
Then, as the earth and sand (improvement target soil) from the earth and sand hopper 65 is conveyed on the earth and sand conveyor 67, the additional material hopper 6 is separately provided in the downstream portion of the earth and sand conveyor 67.
6, the first additive material conveyed on the additive material conveying conveyor 68 flows down from the downstream end portion of the additive material conveying conveyor 68 and is introduced and added, and further the downstream end portion of the earth and sand conveying conveyor 67 on the further downstream side. In the vicinity, a predetermined amount of the second additive is supplied to the earth and sand and the first additive by the feeder 35 of the additive supply device 5.

At this time, the extending direction of the additive hopper 66 and the additive transport conveyor 68 with respect to the support posts 20a2, 20a3 and the support member 20b2 via a known slide mechanism (the self-propelled soil improvement machine). FIG. 13 shows that the additive hopper 66 and the additive transport conveyor 68 can be slid in the left-right direction or the width direction (vertical direction in FIG. 12).
FIG. 4 is a top view illustrating a state where the slide unit is slid inward (in other words, inside the aircraft). Thus, during operation, as shown in FIG. 12, the additive hopper 66 and the additive transport conveyor 68 are pulled out to the left side of the self-propelled soil improvement machine and used, and at the time of self-propulsion and transportation, as shown in FIG. The additive material hopper 66 and the additive material transport conveyor 68 are housed in the soil conditioner main body 6 to reduce the widthwise dimension of the entire self-propelled soil conditioner, thereby improving transportability during transportation. ing.

According to this modification, the same effect as that of the above modification can be obtained. Further, since the dimension of the self-propelled soil improvement machine in the front-rear direction (horizontal direction in FIG. 12) required for the arrangement of the additive hopper 66 and the additive transport conveyor 68 can be reduced as compared with the above-described modified example, the self-propelled soil improvement machine There is also an effect that the total length (dimension in the front-rear direction) can be reduced. Further, if the additive hopper 66 and the additive transport conveyor 68 can be slid via separate and independent known slide mechanisms, as shown in the broken line position in FIG. On the right side of the self-propelled soil improvement machine (specifically, the additive hopper 66 shown in FIG. 12).
In addition, it is also possible to protrude so as to be a line symmetrical position on the opposite side with respect to the arrangement of the conveyor 68 and the center line in the width direction of the self-propelled soil improvement machine. In this manner, the first additive can be introduced from the right side of the self-propelled soil improvement machine and introduced into the earth and sand transport conveyor 67 (however, the circulating drive direction of the additive transport conveyor 68 is opposite. And need to be). Therefore, depending on the layout of the operation site,
It is possible to freely select whether the input position of the first additive is on the left side or the right side of the self-propelled soil improvement machine, and there is an effect that the degree of freedom of layout can be improved.

Structure in which a relay hopper is provided downstream of the earth and sand hopper in the transport direction FIG. 15 shows a first addition of the relay hopper in the embodiment of the self-propelled soil conditioner of the present invention described above. It is a top view showing the whole structure of the modification which provided the relay hopper part for material supply, FIG. 16: in the conveyance direction downstream of the earth and sand hopper part in one Embodiment of the said self-propelled soil improvement machine of this invention. FIG. 10 is a front view illustrating a modified example in which a relay hopper section for supplying a first additive is provided.

Referring to FIGS. 15 and 16, in this modification, the self-propelled soil improvement device is replaced by a partition wall 72a instead of the hopper 2 of the self-propelled soil improvement device 100 according to the embodiment of the present invention. A hopper 72 provided with a sediment hopper 70 for supplying earth and sand located on the front side of the machine and a relay hopper 71 for supplying first additive material located on the rear side of the self-propelled soil improvement machine. Below the section 70 and the relay hopper section 71, the transport conveyor 4 as a common transport means is disposed.

The hopper 72 has a lower side wall 72L of four rounds and an upper side wall 72U of three rounds, similarly to the hopper 2 of the self-propelled soil conditioner 100 of the embodiment of the present invention. The partition wall 72a separates the upper side wall 72U and the lower side so as to partition the internal space of the hopper 72 surrounded by the upper side wall 72U and the lower side wall 72L at a predetermined ratio (for example, the earth and sand hopper 70 is wider than the relay hopper 71). It is fixed to the side wall 72L. Although the detailed illustration is omitted in the partition wall 72a, the partition wall 72a has the same structure and function as the supply amount adjusting mechanism 22a of the self-propelled soil conditioner 100 according to the embodiment of the present invention. Is provided with a supply amount adjusting mechanism including a gate plate for adjusting the amount of sediment. Then, the conveyor belt 1 of the conveyor 4
Only the amount of the bulk that has passed through the supply amount adjusting mechanism out of the injected earth and sand conveyed on the surface 7 is led out of the earth and sand hopper 70, that is, to the relay hopper 71.

At this time, the relay hopper 71
The first additive is supplied from a portable conveyor device 101 for supplying the first additive separately provided outside the self-propelled soil improvement machine. The conveyor device 101 includes:
In this example, the left side of the self-propelled soil improvement machine (lower side in FIG. 15,
(Right side in FIG. 16) A conveyor body 102 provided at an angle so as to rise obliquely from the outside toward the relay hopper 71 by a predetermined angle, and provided near the upstream end of the conveyor body 102 in the transport direction. An additive hopper 103 for receiving and storing the first additive, and a conveyor body 1
02.

The support portion 104 includes wheels 104a and 104b provided on the upstream side and the downstream side in the transport direction, respectively, and the wheels 104a and 104b and the conveyor body 102.
And connecting members 104c and 104d for connecting the respective members.

The conveyor body 102 includes a frame 105, a drive wheel (not shown) supported by the frame 105 and driven by a hydraulic motor 106 for the conveyor, and a driven wheel (idler) 107, similarly to the conveyor 4. And a transport belt 108 wound and provided between
By circulating the transport belt 108, the first additive from the additive hopper 103 is transported to the relay hopper 71.

The additive hopper 103 has four side walls 103.
a of which is not shown in detail in a portion located on the downstream side in the transport direction, the supply amount adjusting mechanism 22 of the self-propelled soil conditioner 100 according to the embodiment of the present invention.
Similarly to b, a supply amount adjusting mechanism provided with a gate plate for adjusting the first additive amount from the additive hopper 103 is provided. Then, of the first additive material conveyed on the conveyor belt 108 of the conveyor body 102, only the bulk of the first additive material that has passed through the supply amount adjusting mechanism is led out of the additive material hopper 103 and supplied to the relay hopper unit 71. It has become.

Then, as described above, the supply amount is adjusted by the supply amount adjusting mechanism of the partition wall 72a, and the earth and sand (improvement target soil) on the transport belt 17 which is led out to the relay hopper portion 71 is removed. At 71, the additive hopper 103
The first additive whose supply amount is adjusted by the supply amount adjustment mechanism for the side wall 103a is supplied. At this time, the hopper lower side wall 7
In the 2L, the downstream side in the transport direction of the relay hopper 71 (FIG. 15)
An opening (not shown) having a sufficient opening area (that is, having no supply amount adjusting function) is provided in a portion located at the center right side.
The earth and sand and the first additive on the conveyor belt 17 are further conveyed on the conveyor belt 17 through the opening and supplied to the mixing device 3.

In the above, the hopper 72 constitutes one hopper member provided on the main body frame, and the earth and sand hopper 70 is formed of one of the two areas partitioned by the partition wall and receives the earth and sand. It constitutes earth and sand hopper means, and also constitutes earth and sand supply means for supplying earth and sand. Also,
The relay hopper section 71 constitutes an additive material hopper means comprising the other side area of the two areas partitioned by the partition wall and receiving the first additive material in the other side area, It also constitutes a first additive supply means for supplying the first additive.

Further, a conveyor 4 is provided commonly below the area on one side and below the area on the other side, and sediment and sand supplied from the area on the one side and the area on the other side. It constitutes a common conveying means for conveying the first additive.

In this modification, substantially the same effects as those of the self-propelled soil conditioner 100 according to the embodiment of the present invention can be obtained. Further, the gate plate is moved up and down by a supply amount adjusting mechanism provided on the partition wall 72a and the additive hopper 103, respectively, or the conveyor belt 17 of the conveyor 4 and the conveyor belt 1 of the conveyor body 102 of the conveyor apparatus 101 are moved.
By individually adjusting the drive speeds of 08, the supply amount can be adjusted simply and accurately.

In the above modification, the second additive is introduced into the relay hopper 71 only from the left side of the self-propelled soil improvement machine by the conveyor device 101.
As shown in FIG. 7, a similar conveyor device 101 may be provided on the right side of the self-propelled soil improvement machine to further introduce the third additive into the relay hopper 71. In this case, it is possible to mix the first to third three types of additives with the supplied earth and sand (in other words, a four-type mixer).
FIG. 18 is a top view illustrating the overall equipment arrangement of an embodiment of the soil improvement system of the present invention. FIG. 15 illustrates a modification of the above-described embodiment of the self-propelled soil improvement machine of the present invention. It is a figure which substantially corresponds. Parts that are the same as those in FIG. 15 are given the same reference numerals, and descriptions thereof will be omitted.

In FIG. 18, the present system is different from the self-propelled soil improvement machine according to the embodiment of the present invention shown in FIG. 15 in the configuration of FIG. This is equivalent to the method in which the first additive material is directly introduced into the substrate.

That is, the earth and sand hopper 73 of the self-propelled soil improvement machine substantially corresponds to the hopper 72 of FIG. 15 in which the relay hopper 71 is omitted and only the earth and sand hopper 70 is provided. And a three-circle upper side wall 73U, and a lower part of the lower side wall 73L on the downstream side in the transport direction (right side in FIG. 18) with a gate plate for adjusting the amount of sediment from the sediment hopper 73. An adjustment mechanism is provided. Then, the conveyor belt 1 of the conveyor 4
7, only the bulk of the soil (the soil to be improved) that has passed through the supply amount adjusting mechanism is transported on the soil hopper 73.
It is designed to be led out.

At this time, the earth and sand hopper 7 of the conveyor 4
An addition space 74 exposed for the addition of the first additive is provided on the conveyance path on the downstream side in the conveyance direction 3 in the conveyance direction, and the addition space 74 has a structure similar to that of the conveyor device 101 in FIG. Portable conveyor device 101A for supplying the first additive separately provided outside the self-propelled soil improvement machine
, The first additive is directly supplied onto the conveyor belt 17 of the conveyor 4. The earth and sand and the first additive on the transport belt 17 are further transported on the transport belt 17 and supplied to the mixing device 3.

In the above, the hopper 73 constitutes the earth and sand supply means for supplying the earth and sand, and the conveyor apparatus 101A is provided outside the self-propelled soil improvement machine, and supplies the first additive to the addition space. The material supply means is configured.

The self-propelled soil improvement system according to the present invention also provides substantially the same effects as the modification of the embodiment of the self-propelled soil improvement machine according to the present invention described above with reference to FIG.

FIG. 19 is a side view showing the overall structure of another embodiment of the self-propelled soil conditioner of the present invention, and FIG. 1 shows one embodiment of the self-propelled soil conditioner of the present invention. FIG. The same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 19, a self-propelled soil conditioner 100A according to the present embodiment is the same as the self-propelled soil conditioner 100 according to the embodiment of the present invention described above except that it has an additive material tank 34 and a feeder 35. A first additive material supply device 5A and a second additive material supply device 5B each having a configuration equivalent to that of the material supply device 5 are provided. The first and second additive material supply devices 5A and 5B include additive material tanks 34A and 34B and feeders 35A and 35B having the same structure as the additive material tank 34 and the feeder 35 of the additive material supply device 5, respectively. , Along the transport direction of the transport conveyor 4.

Further, the self-propelled soil improvement machine 10 of the present embodiment
0A is provided with a sediment hopper 2A substantially equivalent to the one obtained by removing the partition wall 2e from the hopper 2 in the self-propelled soil improvement machine 100 according to the embodiment of the present invention described above. The earth and sand hopper 2A has four lower sidewalls 2aL, 2bL, 2cL,
2dL (not shown except for 2bU) and three lower circumferential side walls 2aL, 2bL, 2dL (not shown except for 2bL), and the lower part on the downstream side (right side in FIG. 19) of the conveyor 4 in the conveying direction. The side wall 2aL is provided with a supply amount (opening) adjusting mechanism (not shown) for adjusting the amount of earth and sand supplied from the inside of the earth and sand hopper 2A to the downstream mixing device 3. This supply amount adjustment mechanism is similar to the supply amount adjustment mechanism 22a of the self-propelled soil conditioner 100 according to the embodiment of the present invention described above, and has a sediment supply opening (gate, not shown) and an opening area thereof. A gate plate (not shown) for variably adjusting is provided, and the opening area of the earth and sand supply opening can be freely adjusted and set to a desired value by the gate plate.

The earth and sand hopper 2A drops the earth and sand loaded through the upper opening thereof onto the conveyor belt 17 of the conveyor 4 and conveys it downstream, and at this time, Only the bulk of the input soil that has passed through the feed rate adjustment mechanism
It is designed to be drawn out. At this time, the first additive material supply device 5A removes the first additive material tank 3 from the soil transported on the transport belt 17.
The first additive in 4A is added by a predetermined amount via a feeder 35A, and further downstream thereof, the second additive in a second additive tank 34b in the second additive supply device 5B passes through a feeder 35B. A predetermined amount is added, and the soil, the first additive, and the second additive are supplied to the mixing device 3.

In the above, the earth and sand hopper 2A constitutes earth and sand supply means for supplying earth and sand. Further, the first additive material tank 34A constitutes a first additive material tank means for storing the first additive material, and the entire first additive material supply device 5A including the same stores the first additive material in the supplied soil. First to supply
It constitutes an additive supply means. The second additive tank 34
B constitutes a second additive material tank means for storing the second additive material, and the entire second additive material supply device 5B including the second additive material supply means supplies the second additive material to the supplied soil. Is configured.

As described above, the self-propelled soil conditioner 10
0A has a configuration in which two types of additives can be added to the soil to be improved, as in the self-propelled soil improvement machine 100 described above, so that it is possible to respond to new needs in recent years. That is, for example, by adding a polymer-based additive as the first additive and quicklime as the second additive to the soil to be improved having a high water content, it is possible to reliably improve the strength.

At this time, when the polymer additive is added as the first additive to the soil to be improved as described above, the polymer additive is added to the soil to be improved in the same manner as quicklime as the second additive. The mixing ratio is relatively small. Therefore, instead of supplying the first additive material to the hopper means and supplying it to the mixing device as in the above-described embodiment of the present invention, the first additive material is supplied to the mixing device 3 by the first additive material supply device 5B having the tank 34. Supplying allows for smooth and efficient acceptance and supply.

As another example of the first and second additives, it is also possible to add a fertilizer as the first additive and a plant seed as the second additive to the soil to be improved during the greening work. It is.

In the above, in the mixing device 3, the earth and sand, the first additive, and the second additive are mixed by the so-called mixing method using the paddle mixer 47 as a stirring means. Instead, for example, a mixing device using a so-called crushing method using a rotary hitter as disclosed in Japanese Patent Application Laid-Open No. 9-195265 may be used.

In the above description, the case where the crawler track 10 is provided as the running means has been described as an example.
This is mainly to prevent the entire vehicle body from becoming unstable due to an impact load or the like when the earth and sand are thrown in even when earth and sand are thrown in intermittently. Therefore, especially when the input of earth and sand is continuously input by a conveyor or the like, or when it is not necessary to consider the instability much, etc.
The traveling means may be constituted by a wheel type or the like.

[0103]

According to the first to ninth aspects of the present invention, the first additive is supplied by the first additive supply means and the second additive is supplied to the soil (improvement target soil) supplied by the soil supply means. The second additive is supplied by the material supply unit, and the earth and sand, the first additive, and the second additive are stirred and mixed by the mixing unit and discharged by the discharge unit. In this way, by adopting a configuration in which two or more types of additives can be added to the soil to be improved, new needs in recent years can be met.

[Brief description of the drawings]

FIG. 1 is a side view showing the overall structure of an embodiment of a self-propelled soil conditioner of the present invention.

FIG. 2 is a top view illustrating the entire structure of the embodiment of the self-propelled soil conditioner according to the present invention.

FIG. 3 is an arrow view as viewed from a direction A in FIG. 1;

[4] In the figure 2 IV _A -IV _A enlarged side cross-sectional view taken along the section, and a cross-sectional view according to FIGS. 4 (a) Medium IV _B -IV _B section.

FIG. 5 is a side sectional view showing a detailed structure of a mixing device constituting one embodiment of the self-propelled soil conditioner of the present invention.

6 is a horizontal sectional view taken along the line VI-VI in FIG. 5;

FIG. 7 is a sectional view taken along the line VII-VII in FIG. 5;

FIG. 8 is a top view illustrating an example of an operating state of the embodiment of the self-propelled soil conditioner according to the present invention.

FIG. 9 is a front view illustrating a main structure of a modification in which two hoppers and two conveyors are separately provided in one embodiment of the self-propelled soil improvement machine of the present invention.

FIG. 10 is a side view showing an overall structure of a modification in which a hopper and a conveyor are separately provided in two upper and lower stages in one embodiment of the self-propelled soil improvement machine of the present invention.

FIG. 11 is a side view showing an overall structure of another modification in which a hopper and a conveyor are separately provided in two upper and lower stages in one embodiment of the self-propelled soil improvement machine of the present invention.

FIG. 12 is a top view showing the overall structure of another modification in which a hopper and a conveyor are separately provided in two upper and lower stages in one embodiment of the self-propelled soil improvement machine of the present invention.

FIG. 13 is a view showing another modified example in which a hopper and a transport conveyor are separately provided in upper and lower two stages in one embodiment of the self-propelled soil improvement machine of the present invention. It is a top view showing the state which slid in the left-right direction inside of the self-propelled soil improvement machine.

FIG. 14 is a view showing another modified example in which the hopper and the transport conveyor are separately provided in upper and lower two stages in one embodiment of the self-propelled soil improvement machine of the present invention. It is a figure which shows the state which made the additive material hopper and the conveyer protrude to the right-hand side of a self-propelled soil improvement machine so that they could be slid via a well-known independent independent slide mechanism.

FIG. 15 is a top view showing the entire structure of a modification in which a relay hopper for supplying the first additive is provided downstream of the earth and sand hopper in the transport direction in one embodiment of the self-propelled soil improvement machine of the present invention. It is.

FIG. 16 is a front view showing the structure of a modification in which a relay hopper for supplying the first additive is provided downstream of the earth and sand hopper in the transport direction in one embodiment of the self-propelled soil improvement machine of the present invention. is there.

FIG. 17 is a diagram showing a self-propelled soil improvement device according to a modification of the embodiment of the present invention, in which a relay hopper for supplying the first additive is provided downstream of the earth and sand hopper in the transport direction. It is a top view which shows the example which introduces an additive material into the relay hopper part from both the left and right sides of an improvement machine.

FIG. 18 is a top view showing the overall equipment arrangement of one embodiment of the soil improvement system of the present invention.

FIG. 19 is a side view showing the overall structure of another embodiment of the self-propelled soil conditioner of the present invention.

[Explanation of symbols]

1A Sediment hopper section (sediment hopper means, earth and sand supply means) 1B Additive material hopper section (additive material hopper means,
1st additive supply means) 2 hopper (one hopper member) 2A earth and sand hopper (sediment supply means) 2e partition wall 3 mixing device (mixing means) 4 transport conveyor (common transport means) 5 additive material supply device (second Additive material supply means) 5A First additive material supply device (First additive material supply device) 5B Second additive material supply device (Second additive material supply device) 8 Discharge conveyor (Discharge means) 9 Main frame 9A Soil improvement machine installation Part 10 Endless track crawler (running means) 22a Supply amount adjustment mechanism (sediment amount adjustment means, earth and sand supply means) 22b Supply amount adjustment mechanism (additive amount adjustment means,
First additive supply means) 34 additive tank (additive tank means) 34A first additive tank (first additive tank means) 34B second additive tank (second additive tank means) 65 earth and sand hopper (2 One hopper member, earth and sand hopper means, earth and sand supply means) 66 additive material hopper (two hopper members, additive material hopper means, first additive material supply means) 67 earth and sand transport conveyor (two transport means) 68 additive material transport conveyor ( 70) soil hopper (sediment hopper means, earth and sand supply means) 71 relay hopper part (additional material hopper means, first additive material supply means) 72 hopper (one hopper member) 72a partition wall 73 hopper (earth and sand) Supply means) 74 Addition space 100 Self-propelled soil improvement machine 101A Conveyor device (External equipment supply means)

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Toshikazu Murai 650, Kunitachi-cho, Tsuchiura-shi, Ibaraki Hitachi Tsukiura Plant Tsuchiura Plant (72) Inventor Tetsushiro Miura 2-5-1 Koraku, Bunkyo-ku, Tokyo Hitachi Construction Equipment Co., Ltd.

Claims (9)

[Claims] A plurality of sediment supply means for supplying sediment; and a first additive material supply means and a second additive material supply means for respectively supplying a first additive material and a second additive material to the supplied sediment. Self-propelled soil improvement comprising: an additive supply means; a mixing means for introducing and stirring and mixing the supplied earth and sand, the first additive and the second additive; and a discharge means for discharging the stirred and mixed mixture. Machine. 2. The self-propelled soil improvement machine according to claim 1, wherein said earth and sand supply means includes earth and sand hopper means for receiving earth and sand, and wherein said first additive material supply means comprises said first additive material. A self-propelled soil improvement machine comprising a receiving material hopper means. 3. A self-propelled soil improvement machine according to claim 2, wherein said earth and sand hopper means is provided in one hopper member and is separated from a region on one side of two regions partitioned by a partition wall. And the additive hopper means comprises:
A self-propelled soil improvement machine, comprising the area on the other side of one area. 4. The self-propelled soil improvement machine according to claim 3, wherein the self-propelled soil improvement machine is provided below the one side region and below the other side region, and is provided in common with the one side region and the other side region. A self-propelled soil improvement machine, further comprising common transport means for transporting the earth and sand and the first additive material respectively supplied from the area on the side of (a). 5. The self-propelled soil improvement machine according to claim 2, wherein said earth and sand hopper means and said additive hopper means are:
A self-propelled soil improvement machine comprising two hopper members provided separately from each other. 6. The self-propelled soil improvement machine according to claim 5, wherein the self-propelled soil improvement machine is provided below the two hopper members, respectively.
A self-propelled soil improvement machine further comprising two conveying means for respectively conveying earth and sand and a first additive supplied from each hopper member. 7. The self-propelled soil improvement machine according to claim 1, wherein said first additive supply means includes first additive tank means for storing said first additive, and said second additive supply means includes a first additive tank. The self-propelled soil improvement machine, wherein the material supply means includes a second additive material tank means for storing the second additive material. 8. A main body frame, a traveling means provided on the main body frame, and one of two areas provided on the main body frame and separated by a partition wall, receiving earth and sand in another area and receiving the other side. And one hopper member for receiving the first additive material in the area of the one side, and provided in common below the area on the one side and below the area on the other side, the area on the one side and the area on the other side. Common conveying means for conveying the earth and sand and the first additive material supplied from the area, provided on the one hopper member, and conveyed from the one side area and the other side area by the common conveying means. Amount adjusting means and additive amount adjusting means for respectively adjusting the amount of sediment transported and the amount of the first additive, and an additive tank for adding the second additive to the soil and the first additive added during the transportation Means, said earth and sand, Serial first additive, and a mixing means for mixing and stirring by introducing the second additive, the self-propelled soil improvement machine having a discharge means for discharging the mixture was the stirred mixture. 9. An earth and sand supplying means for supplying earth and sand, a conveying means for conveying the supplied earth and sand, an addition space provided in the conveying means for adding a first additive to the supplied earth and sand, Second additive supply means for supplying a second additive to the soil and the first additive, mixing means for introducing and stirring and mixing the supplied soil, first additive and second additive, and agitation thereof. A self-propelled soil improvement machine provided with a discharge means for discharging the mixed mixture; and an external additive supply means provided outside the self-propelled soil improvement machine and supplying the first additive to the addition space. And a soil improvement system comprising: