JP2002302966A - Self-traveling soil improving machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-traveling soil improving machine performed by being loaded on a trailer, and capable of improving transport performance at transport time. SOLUTION: This self-traveling soil improving machine is provided with a body frame 2 arranged on a lower traveling body 1, a processing mechanism part 4 arranged in this body frame 2, and mixing sediment and a soil improving material, a sediment hopper 20 arranged on the lengthwise one side of the body frame 2, a carrier conveyor 90 arranged so that one side faces to a lower part of the sediment hopper 20, and the other side faces to the processing mechanism part 4, a discharge conveyor 94 arranged so as to discharge refined sediment from the processing mechanism part 4 to the lengthwise other side of the body frame 2, a machine room arranged on the lengthwise other side of the body frame 2, and a soil improving material hopper 30 detachably arranged between the processing mechanism part 5 and the sediment hopper 20, and supplying the soil improving material to the sediment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine used for improving soft ground and strengthening the ground, and for improving the quality of earth and sand to meet a predetermined purpose. The present invention relates to a self-propelled soil improvement machine that performs soil improvement while traveling appropriately.

[0002]

2. Description of the Related Art For example, in burial of gas pipes, water and sewage works and other road works, foundation works, etc., it is desirable to backfill the soil generated by excavation, but sometimes the generated soil is not suitable for backfilling. is there. In this case, the soil improvement treatment must be performed on the generated soil. In the soil improvement, for example, a soil improvement material containing lime, cement, or the like as a main component is mixed with the sand and solidified, and thereby the generated soil can be converted into high quality soil suitable for backfilling.

[0003] In order to carry out the solidification treatment of earth and sand, earth and sand and a soil improvement material are mixed. As a typical mixing method of the earth and sand and the soil improvement material, a mixing method using stirring means and a rotation method are used. A crushing method provided with a striker is conventionally known. As one example, a processing apparatus having a crushing method provided with a rotary striker and configured as a self-propelled machine is disclosed in, for example, JP-A-9-195265. In this machine, a lower traveling body having crawler tracks is provided on a chassis, and a hopper for charging earth and sand, a soil improving material hopper for charging a soil improving material, and soil and soil improving material supplied from both hoppers are provided on the chassis. And a conveyer provided with a conveyer belt for conveying the paper, a crushing type processing mechanism, and a conveyer for unloading. The processing mechanism has a rotary hitting element.By dropping the earth and sand and the soil improvement material conveyed along the conveyor belt of the conveyor by its own weight, and applying a blow with this rotary hitting element during the falling. The soil mass is finely crushed, and the soil improvement material is mixed with the crushed earth and sand. Such a self-propelled soil improvement machine is mainly used for carrying directly to a place where soil and soil to be improved are generated, such as road construction and foundation work, for improving soil quality and directly backfilling excavated soil.

[0004]

When the self-propelled soil improvement machine is carried into the place where the soil to be improved is generated as described above, the self-propelled soil improvement machine is loaded on a trailer or the like. Have to be transported. This transportation route includes
The presence of guards, pedestrian bridges, and the like limits the height of the self-propelled soil improvement machine when loading and transporting on a trailer. Therefore, if the self-propelled soil improvement machine can be configured so as not to have a very large dimension in the height direction, the transportation carried by loading on the trailer becomes convenient, and good transportability can be secured.

However, in the above prior art,
No consideration is given to such height dimensions. That is, the processing mechanism is a crushing method in which a rotary cutter and a plurality of rotary impactors with different positions in the vertical direction and the front-rear direction are provided in a housing opened at the end of the conveyor that constitutes the supply unit. In addition, the earth and sand and the soil improving material that fall by their own weight from the conveyor are broken by being hit with a rotary hitting element during the fall, so that the soil and the soil improving material are mixed. For this reason, while the earth and sand falls under its own weight, it is necessary to increase the chance of being hit as much as possible, and since the falling distance of the earth and sand must be increased, the height dimension of the processing mechanism (particularly, the housing) is required. Is relatively large.

Here, as described above, the end of the conveyor is connected to the opening provided in the upper part of the housing of the processing mechanism, and the earth and sand hopper and the soil improving material hopper are connected from the upstream side in the conveying direction of the conveyor. Is installed. At this time, in particular, the soil improving material hopper located between the earth and sand hopper and the processing mechanism is provided above the transport conveyor to supply the soil improving material onto the transport belt. That is,
A soil improvement material hopper having a relatively large height dimension is disposed further above the conveyor connected to the upper portion of the housing having a large height dimension to secure a predetermined capacity. As a result, the size of the self-propelled soil improvement machine in the height direction is increased, and the transportability at the time of loading the trailer on the trailer is reduced.

[0007] The present invention has been made in view of the above points, and it is an object of the present invention to provide a self-propelled soil improvement machine capable of improving transportability in loading and transporting on a trailer. It is in.

[0008]

(1) In order to achieve the above object, the present invention provides a traveling body, a main body frame provided on the traveling body, and a soil and soil improvement provided on the main body frame. A processing mechanism for mixing the material, a earth and sand hopper provided on one longitudinal side of the main body frame, and a first transporter arranged so that one side is below the earth and sand hopper and the other side is facing the processing mechanism. Means, second conveying means provided on the main body frame so as to discharge the modified earth and sand from the processing mechanism section to the other longitudinal side of the main body frame, and second conveying means provided on the other longitudinal side of the main body frame. A machine room; and a soil improving material hopper that is detachably provided between the processing mechanism unit and the earth and sand hopper and supplies the soil improving material to the earth and sand.

In the present invention, the soil improving material hopper, which is located between the processing mechanism and the earth and sand hopper and supplies the soil improving material to the earth and sand, can be attached to and detached from, for example, the main body frame or a member fixed thereto. To be provided. This allows
When the self-propelled soil improvement machine is loaded and transported on a trailer or the like, for example, the soil improvement material hopper can be removed from the main body frame or the like and placed separately on the trailer. Here, the soil improving material hopper supplies the soil improving material to the earth and sand conveyed by the first conveying means, and is usually located above the first conveying means, and usually has a predetermined capacity. In order to secure the height of the self-propelled soil improvement machine, the height of the entire self-propelled soil improvement machine (vehicle height) ) Can be greatly reduced. As a result, it is possible to improve the transportability at the time of transporting by loading on a trailer.

(2) In the above (1), preferably,
The soil improvement material hopper, the supply port of the soil improvement material,
It is arranged so as to be located between the processing mechanism and the earth and sand hopper.

(3) In the above (1) or (2), preferably, in a state where the soil improvement material hopper is attached, the upper end thereof is the highest position of the height dimension of the self-propelled soil improvement machine. When the soil improving material hopper is removed, the processing mechanism other than the soil improving material hopper, the earth and sand hopper, the first transporting means, the second transporting means,
And any one of the machine rooms is arranged at the highest position of the height of the self-propelled soil improvement machine.

(4) In the above (1) to (3), and preferably, the processing mechanism unit changes the position in the vertical direction on a path where the earth and sand and the soil improvement material falls by its own weight, and connects the plurality of rotary impactors. The crushing mechanism provided.

(5) In the above (1) to (3), preferably, the processing mechanism section includes a processing section having an introduction section into which earth and sand and soil improvement material are introduced, and a discharge section to discharge the improved soil. A tank, a plurality of rotating shafts provided in the processing tank,
Stirring blades intermittently or continuously mounted on the plurality of rotating shafts, and rotating the plurality of rotating shafts, mixing the earth and sand with the soil improving material, and mixing the earth and soil with the soil improving material from the introduction portion to the discharge portion. Transfer to.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show the configuration of the self-propelled soil improvement machine. First, in FIG.
Reference numeral 1 denotes a lower traveling body, and the lower traveling body 1 is provided with crawler-type means having a pair of crawler tracks 1a. Although the illustrated lower traveling body 1 is a crawler-type traveling means, taking into consideration the case where earth and sand are intermittently introduced, it is necessary to prevent the entire vehicle body from becoming unstable due to an impact load at the time of earth and sand introduction. This is to prevent it. Therefore, in the case where the earth and sand are continuously charged by a conveyor or the like, it may be configured by a wheel-type traveling body.

A body frame 2 constituting a chassis is connected to and provided on an upper portion of the lower traveling body 1, and various mechanisms and devices are provided on the body frame 2. In the main body frame 2, when the left side in FIG. 1 (in other words, one side in the longitudinal direction) is set to the front of the machine, a supply unit 3 is disposed at a front position. Further, a processing mechanism 4 is mounted on the rear side (in other words, the other side in the longitudinal direction), and a discharge unit 5 is provided further rearward than the processing mechanism 4. The discharge section 5 extends obliquely upward from a position below the processing mechanism section 4 and has an engine, a hydraulic pump, and a direction switch at an upper position of the processing mechanism section 4 (in other words, the other side in the longitudinal direction of the main body frame 2). A machine room containing a machine such as a valve unit is provided, and a cover 6 of the machine room is fixedly held on the main body frame 2 by a support post 6a.

The supply section 3 is for supplying the earth and sand and the soil improvement material, and is adapted to measure the amount of the earth and sand in order to adjust the mixing ratio of the supplied soil and soil improvement material. Has become. For this purpose, a transport conveyor 10 is provided as transport means (first transport means), and in the transport direction of the transport conveyor 10, the most upstream side, that is, the front side of the machine (one side in the longitudinal direction of the main body frame 2). And a soil improving material hopper 30 is installed on the rear side, which is the downstream side. In detail, as shown in FIG. 1, the conveyor 10 is arranged such that one side (the front side) faces below the earth and sand hopper 20 and the other side (the rear side) faces the processing mechanism unit 4. And the soil improvement material hopper 30
Is provided between the processing mechanism unit 4 and the earth and sand hopper 20.
Further, the amount of earth and sand conveyed by the conveyor 10 is measured, and the supply amount of the soil improving material from the soil improving material hopper 30 is adjusted according to the measured amount.

The transport conveyor 10 is supported by a support 7 provided so as to project forward from the main body frame 2. Here, the support 7 is the lowest at the base end side and is inclined so as to rise obliquely upward as it goes to the side connected to the main body frame 2. Therefore, the conveyor 10 also extends obliquely upward from the front side. Are located.

As shown in FIG. 4, the conveyor 10 has a conveyor belt 11 (indicated by phantom lines). The conveyor belt 11 is made of a sheet-like rubber or the like. A configuration that bends by a corresponding amount is used. Reference numeral 12 denotes a conveyor frame, and at both ends of the conveyor frame 12, rotating shafts 13 connected to a driving roller 13 and a driven roller 14, respectively.
a and 14a are rotatably connected to each other,
Reference numeral 1 is provided by being wound between the driving roller 13 and the driven roller 14. A hydraulic motor 15 is connected to a rotating shaft 13a on which the driving roller 13 is provided. By rotating the rotating shaft 13a with the hydraulic motor 15, the driving roller 13 is driven to rotate and the transport belt 11 is moved as shown in FIG. They are sent in the direction of the arrow.

Guide plates 16 are provided on both left and right sides of the transport surface of the transport belt 11.
1 protrudes upward by a predetermined height from the transport surface. These guide plates 16 are provided to prevent the earth and sand of a predetermined height from overflowing to the right and left when the conveyor belt 11 conveys the soil. The transport belt 11 is provided with guide rollers 17 at predetermined pitch intervals in the transport direction. Further, the rotating shaft 14a on which the driven roller 14 is mounted is not directly connected to the conveyor frame 12, but can be adjusted via the tension adjusting means 18 so that the tension of the conveyor belt 11 is kept constant. Has become. The tension adjusting means 18 is provided with a means for detecting the degree of tension of the conveyor belt 11, such as a load sensor, so that the tension of the conveyor belt 11 can be adjusted to a constant value. However, illustration of these specific configurations is omitted.

As shown in FIG. 5, the upper portion of the earth and sand hopper 20 is a portion 20a for receiving earth and sand, and the lower portion is a portion 20b for supplying earth and sand to the conveyor 10. In order to smoothly carry out the work of putting earth and sand, a receiving opening opening at the upper end of the receiving part 20a is a wide mouth, and earth and sand is supplied to the transport conveyor 10 from the bottom of the supply part 20b. Therefore, the supply port, which is the opening at the lower end of the supply unit 20b, is the same as the width of the belt 11 of the conveyor 10 or
Or slightly smaller. The earth and sand hopper 20 is fixedly held on the main body frame 2 by the frame member 8.

On the side of the receiving portion 20a of the earth and sand hopper 20, a means 21 for sieving foreign substances, such as a sieve and a sieve, is mounted. The sieving means 21 may be fixedly provided at the receiving portion 20a of the earth and sand hopper 20.
It is preferable that the sieving means 21 be vibrated by being attached to a and provided to be connected to the vibrating means. Therefore, this sieving means 2
1 selectively allows the earth and sand to pass therethrough so that a lump solid or the like having a certain size or more does not enter the earth and sand hopper 20. And the receiving part 20a of the earth and sand hopper 20 equipped with this sieving means 21 is inclined toward the side,
Thus, for example, the earth and sand is charged from the front side of the earth and sand hopper 20 using a bucket of a hydraulic shovel or the like, and the solid solids that have not passed through the sieving means 21 are removed by rolling down along the slope. Is done. Therefore,
The lump solids separated from the earth and sand hopper 20 by the sieving means 21 do not mix with the place where the earth and sand to be charged is deposited.

The earth and sand fed into the earth and sand hopper 20 falls from the supply section 20b onto the conveyor belt 11 of the conveyor 10 by the action of its own weight. The earth and sand supplied from the earth and sand hopper 20 is conveyed by driving the conveyor belt 11. It is not always necessary to adjust the amount of earth and sand transported by the conveyor belt 11, but as will be described later, the amount of earth and sand transported is detected to make the mixing ratio with the soil improving material constant. For this reason, it is desirable to adjust the transport amount so as not to change as much as possible to keep the mixing ratio constant. From the above, the transport belt 11
Since the height level of the earth and sand is regulated by the height of the guide plate 16 projecting from both ends of the conveyor belt 11, the height level of the earth and sand exceeds the height of the guide plate 16 at the lower end of the earth and sand hopper 20. A gate 22 having an opening area limited to an unrestricted height is formed, and when the conveyor belt 11 is fed, the gate 22 is conveyed in a state where bulky soil corresponding to the height set by the gate 22 is accumulated. become. In order to level the sediment deposited on the conveyor belt 11 after passing through the gate 22, a leveling roller 24 having a claw 23 projecting from the outer peripheral surface is rotatably provided at the exit side of the gate 22. Thereby, the height of the transported earth and sand is adjusted so as to be substantially constant.

Next, the soil improving material hopper 30 is fixedly held on the main body frame 2 by the columns 9, and the structure thereof is as shown in FIGS. The soil improving material hopper 30 is composed of a storage section 31 and a fixed quantity supply section 32. The storage section 31 has a cylindrical portion 31a at a lower portion, and a square box portion 31b is continuously provided on an upper side. A lid 33 is provided at the upper end of the rectangular box portion 31b, and the lid 33 is composed of two lid pieces 33a. Each lid piece 33a is opened outward, and in the fully opened state, each lid piece 33a is opened diagonally upward by a stopper having an appropriate configuration. And the soil improvement material is stored in the flexible container 34, and each lid piece 33a of the soil improvement material hopper 30 is opened,
The soil improvement material is supplied by installing the flexible container 34 so as to enter the rectangular box portion 31b of the storage portion 31.

A cutter 35 having a blade edge protruding upward is attached to a continuous portion of the storage portion 31 between the cylindrical portion 31a and the rectangular box portion 31b or in the vicinity thereof, and a flexible container 34 is mounted in the soil improving material hopper 30. When placed on the flexible container 34, the lower end of the flexible container 34 is torn by the cutter 35 by its own weight.
The soil improvement material inside, for example, lime, is supplied so as to flow into the storage portion 31, particularly into the cylindrical portion 31a. Then, as is clear from FIG. 7, since the cylindrical portion 31 a and the fixed-quantity supply unit 32 communicate with each other through the communication hole 36, the soil improving material is supplied into the fixed-quantity supply unit 32. Here, since the opening area of the communication hole 36 is relatively small with respect to the cross-sectional area of the cylindrical portion 31a, if the soil improvement material is fed into the fixed quantity supply portion 32 only by its own weight, a bridge phenomenon or the like occurs. The soil improvement material cannot be sent smoothly. In consideration of this point, the rotating rod 37 is arranged in a cross shape near the bottom surface of the cylindrical portion 31a, and the rotating rod 37 is attached to the cylindrical portion 31a.
Is connected to a rotating shaft 39 that is driven to rotate by a hydraulic motor 38 provided at the lower part of the motor. As a result, by rotating the rotating rod 37, the soil improvement material in the storage section 31 is agitated and smoothly and reliably fed into the fixed quantity supply section 32.

The fixed-quantity supply section 32 has a casing 40 having a dimension substantially equal to the width of the conveyor belt 11 in the conveyor 10, and the lower end of the casing 40 has substantially the same length as the entire length of the conveyor belt 11. Alternatively, a soil improving material supply port 41 composed of a slightly narrower elongated hole is formed, and the soil improving material sent from the storage section 31 to the fixed quantity supply section 32 is fed from the soil improving material supply port 41 to the conveyor belt. It is configured to supply the earth and sand conveyed by 11. At this time, the soil improvement material supply port 41 is
As shown in FIG. 1, it is located between the processing mechanism 4 and the earth and sand hopper 20.

The fixed amount supply section 32 is adapted to adjust the supply amount of the soil improving material. For this, FIGS. 8 and 9
As shown in the figure, the wall surface near the lower end where the soil improvement material supply port 41 is opened in the casing 40 of the fixed quantity supply unit 32 is formed as opposed arcuate wall surfaces 40a, 40a.
A fixed amount feeder 42 is provided between the arc-shaped wall portions 40a. The fixed-quantity supply feeder 42 is formed by forming a partition wall 44 at a predetermined angle (every 90 degrees in the illustrated example) on a rotating shaft 43 provided in a state penetrating the lower end portion of the casing 40 in the horizontal direction. V-shaped fixed-quantity supply container 45 between adjacent partition walls
Is formed. And the width dimension of the soil improvement material supply port 41 is set to the adjacent partition walls 44, 44.
The interval between them is equal to or smaller than the interval therebetween, and the arc-shaped wall portion 40a has an arc of at least 90 ° or more.

When the rotating shaft 43 is rotated, the tips of the partition walls 44 constituting the four fixed quantity supply container portions 45 are in sliding contact with the arc-shaped wall portions 40a. Functions as a scraping wall of each fixed-quantity supply container unit 45, and the fixed-quantity supply feeder 42 is displaced from the state of FIG. 8 to the state of FIG. The amount of the soil improvement material corresponding to the volume of the fixed quantity supply container portion 45 is supplied onto the conveyor belt 11. Therefore, by adjusting the rotation speed of the rotating shaft 43, the supply amount of the soil improving material from the fixed quantity supply unit 32 can be controlled. An electric motor 46 is mounted on the outer surface of the casing 40 in order to finely control the rotation speed of the rotating shaft 43 of the fixed-quantity feeder 42, and a transmission is provided between the electric motor 46 and the rotating shaft 43. Power transmission means 47, such as a belt, is interposed.

The supply amount of the soil improving material is changed according to the amount of the earth and sand conveyed by the conveyor belt 11. The amount of the earth and sand conveyed by the conveyor belt 11 is adjusted by the gate 22 and the leveling roller 24 provided on the earth and sand hopper 20 so as to have a substantially constant volume. Can not be converted. In order to detect the amount of the earth and sand conveyed by the conveyor belt 11, the earth and sand supply amount measuring means 50 is provided, and the earth and sand supply amount measuring means 50 specifically detects the weight of the earth and sand carried. . To this end, the earth and sand supply amount measuring means 50 is provided in FIG. 10 and FIG.
The configuration shown in FIG.

In these figures, 51, 51 are fixedly supported by a conveyor frame 12,
1 is a pair of fixed rollers that abut against the back surface of the roller 1 and roll by feeding the fixed rollers 51, 51.
The area between them is the sediment supply measurement section. Fixed rollers 51, 51 before and after constituting this earth and sand supply amount measurement section.
A weight measuring roller 52 is attached at a substantially intermediate position between the conveying belt 11 and the rear surface of the conveyor belt 11. Here, as described above, the transport belt 11 is moved by the load.
That is, the belt is bent in accordance with the weight of the earth and sand deposited thereon, and the weight measuring roller 52 is for detecting the degree of bending of the transport belt 11.

The weight measuring roller 52 is provided so as to be connected to a swing plate 54 which is swingably supported by a bearing member 53 provided on the conveyor frame 12, and the other end of the swing plate 54 is provided at the other end. , A load sensor 55 including a load cell or the like constituting a weight measuring means is provided in connection therewith. Therefore, when a predetermined amount of earth and sand is conveyed on the conveyor belt 11 and conveyed, the portion of the conveyor belt 11 where the earth and sand are accumulated is conveyed to the sediment supply measurement section between the fixed rollers 51 and 51. Then, the transport belt 11 bends so as to sink. As a result, the weight measuring roller 52 is pushed in the direction indicated by the arrow D in FIG. 11, and the rocking plate 54 to which the weight measuring roller 52 is connected tends to swing in the direction indicated by the arrow U in FIG. As a result, the amount of earth and sand conveyed by the conveyor belt 11 can be measured based on the detection signal.

Although the supply unit 3 is constructed as described above, the earth and sand hopper 20 needs to be arranged at the most upstream side in the conveying direction of the conveyor 10, but the earth and sand supply amount measuring means 50 and the soil improving material hopper 30 may be arranged on the front side. The earth and sand supply amount measuring means 50 measures the earth and sand supply weight.
It is reasonable to measure from 0 before the soil improvement material is supplied. However, since the supply amount of the soil improving material from the soil improving material hopper 30 is controlled by the fixed amount feeder 42, the amount is known. Therefore, the earth and sand supply amount measuring means 50 can determine the weight of the earth and sand by subtracting the supply amount of the soil improvement material from the measured weight. In addition, when the position where the weight of the soil is measured is located rearward, there is a delay in the control of the supply amount of the soil improvement material by that much.However, since the soil and the soil improvement material are agitated and mixed later, there is some control delay. Even so, there is nothing extraordinary. Rather, when the soil improving material is supplied at a position immediately after the earth and sand is supplied, each action of moisture absorption and reaction due to the soil improving material coming into contact with the earth and sand starts early, and is measured by the earth and sand supply amount measuring means 50. This is advantageous in that the moisture absorption and the reaction at the time of transfer by the transfer conveyer 10 including during the operation are advanced. As described above, either of the earth and sand supply amount measuring means 50 and the soil conditioner hopper 30 may be arranged on the front side.

As described above, the earth and sand and the soil improvement material are transported by the transport belt 11 constituting the transport conveyor 10, and the end of the transport conveyor 10 is connected to the processing tank 60 which constitutes the processing mechanism section 4. Have been. The processing tank 60 is installed on the main body frame 2 and is arranged at a predetermined height position. The earth and sand and the soil improving material are supplied from above from the conveyor 10. For this purpose, the conveyor 10 must be located at a very high place.
When the conveyor 10 is provided horizontally and the earth and sand hopper 20 is further installed thereon, the earth and sand input section is at an extremely high position. The conveyor 10 is fixed to a support 7 extending from the main body frame 2.
For this reason, the earth and sand hopper 20 located on the most upstream side of the conveyor 10 can be arranged at a low position, thereby facilitating the charging of earth and sand. I have to.

Next, FIG. 12 to FIG. 15 show the configuration of the processing tank 60 constituting the processing mechanism unit 4. The processing tank 60 is shown in FIG.
As is clear from FIG. 2, a tank body 60a formed of a rectangular container elongated in the longitudinal direction of the main body frame 2, that is, the traveling direction of the lower traveling body 1, is provided.
The upper part of Oa is open over a considerable area, and a lid 60b can be fixed to this open part with bolts or the like. The side (one side or both sides) of the tank main body 60a can be opened and closed by an opening / closing door 61. In addition, an introduction cylinder 62 that constitutes an introduction part is connected to an upper portion on the front side of the processing tank 60, and a discharge cylinder 63 that constitutes a discharge part is connected to the lower part on the rear side. As shown in FIGS. 13 to 15, two paddle mixers 64 are provided in the processing tank 60 in parallel. The paddle mixer 64 has a rotating shaft 65, on which a large number of paddles 66, which are intermittently provided blades as stirring / transfer members, are implanted at different positions in the front-rear direction and the rotating direction. By rotating the rotating shaft 65, the paddle 66 is rotated.
Is rotated to stir the inside of the processing tank 60, and the earth and sand and the soil improving material guided into the processing tank 60 are stirred and uniformly mixed. Here, the paddle 66 is
The paddle body 66b is fixed to a support rod 66a fixedly provided to the rotating shaft 65 with a bolt 66c,
When the paddle body 66b becomes worn, it can be easily replaced.

Since the processing tank 60 is installed on the main frame 2 together with other equipment, its longitudinal dimension is restricted, and the paddle 66 efficiently stirs and mixes in the restricted container. To do. Both ends of each of the paddle mixers 64 are rotatably supported by bearings 67, 67.
As shown in FIG. 3, it extends into the housing of the drive unit 68 provided at the front end of the processing tank 60. A transmission gear 69 is connected to the tip of each rotating shaft 65.
9, 69 are mutually meshed. A driving gear 71 connected to the output shaft of the hydraulic motor 70 is provided on one transmission gear.
Are rotationally driven by the hydraulic motor 70, so that both rotary shafts 65,
65 can be simultaneously driven to rotate in mutually opposite directions. Further, a guide plate 72 is attached to a bottom portion in the processing tank 60, and the guide plate 72 prevents soil and soil or a soil improvement material from staying at the lower corner of the processing tank 60. . The guide plate 72 is open at a position corresponding to the discharge cylinder 63.

Thus, in the treatment tank 60, the earth and sand introduced from the introduction cylinder 62 and the soil improving material are uniformly stirred and mixed by the action of the paddle 66, and the mixture is directed toward the discharge cylinder 63. Improved soil is produced during the transfer. The improved soil thus produced is discharged from the discharge cylinder 63 to the discharge section 5 by the action of its own weight. The discharge unit 5 is configured by a discharge conveyor 73, and discharges the modified soil from the processing mechanism unit 4 to the rear side (the other longitudinal side of the main body frame 2). Since the discharge cylinder 63 is located below the processing tank 60, the discharge conveyor 73 is provided with the discharge cylinder 6.
3 below. However, if the discharge conveyer 73 is extended straight as it is, the improved soil cannot be deposited at a high level. Therefore, the discharge conveyer 73 is extended obliquely upward to drop the improved soil from a predetermined height position. Here, when lime is used as a soil improvement material, the improved soil generated by uniformly mixing the lime and the earth and sand has an aggregate structure. Discharge conveyor 73
In order to convey smoothly and obliquely upward, the inclination angle is limited. Therefore, in order to deposit the improved soil from a predetermined height position, the discharge conveyor 73 is required.
Becomes longer. Therefore, the discharge conveyor 73
The length of the soil improvement machine can be shortened by making the tip end side bendable by a predetermined length. For this purpose, the discharge conveyor 73 is formed as a fixed portion 73a on the connection side to the processing tank 60, and a bent portion 73b rotatable in the direction of the arrow in FIG. ing. And the bent portion 73b
Can be displaced by a driving means such as a hydraulic cylinder between an operating state shown by a solid line in the figure and a bent state shown by a virtual line.

With the above configuration, FIG.
As shown in FIG. 6, a hydraulic excavator PS is used as a means for feeding earth and sand, and the earth and sand to be treated deposited in a predetermined yard is scooped by the bucket B, and the earth and sand hopper provided in the supply section 3 of the soil improvement machine. The soil improvement material is supplied from the soil improvement material hopper 30 and added to the soil while the soil is transported from the soil hopper 20 to the transportation conveyor 10. Then, a mixture of the earth and sand and the soil improving material is fed into the processing tank 60 from the end of the conveyor 10 through the introducing cylinder 62, and the soil and the soil improving material are acted on by the paddle mixer 64 provided in the processing tank 60. Are moved to the position of the discharge cylinder 63 while being stirred and mixed. Then, the improved soil in the aggregated state is produced by uniformly mixing the earth and sand and the soil improvement material in the treatment tank 60. The improved soil is deposited at a predetermined position from the discharge cylinder 63 via the discharge conveyor 73.

When earth and sand are taken into the soil improvement machine from the accumulation part, a space is created at that part. If the improved soil is sequentially deposited in this space, most of the deposition locations in the yard can substantially serve as both a soil deposition site and an improved soil deposition site. As a result, the yard space can be effectively used. It is for this reason that the soil improvement machine is capable of running on its own by the undercarriage 1, and as the work progresses, the undercarriage 1 is actuated as the sedimentation site retreats to improve the soil. Try to move the machine.

As described above, when the produced improved soil is deposited at a predetermined position on the discharge conveyor 71, the improved soil may be directly deposited at the deposition location. Therefore, it may be desirable to classify according to the particle size. To this end, as shown in FIG. 16, the sorting device 75 is installed at a predetermined location in the yard. The sorting device 75 includes a sieve 76 and a transfer conveyor 77. The sieve 76 is, for example, 13 m
It is desirable to use a vibrating sieve having a mesh size that allows passage of a particle having a predetermined particle size such as m or less, 20 mm or less, or 25 mm or less. After passing through the sieve 76, the improved soil having a uniform particle size is deposited on a predetermined deposition location by the transfer conveyor 77. In addition, sieve 76
Since the improved soil having a large particle size that did not pass through is also of the same quality in that the solidification treatment has been performed, the improved soil having a large particle size is also used as it is or after being subjected to a process of equalizing the particle size. , For backfilling.

In order to improve the quality of the improved soil produced as described above, first, as a pre-treatment, when the soil contains rocks, brick pieces, concrete pieces, and the like, and furthermore, metals and other foreign substances are contained. These foreign substances are separated and removed. The sieving means 21 mounted on the sediment hopper 20 is for sieving such foreign matters and the like.
The foreign matter that has been taken in and has not passed through the sieving means 21 is smoothly discharged to the outside along the slope. Therefore, the upper portion of the earth and sand hopper 20 is not covered with the foreign matter, and does not hinder the operation of charging the earth and sand.

Next, in order to stabilize the quality of the improved soil, that is, to set the degree of solidification within a predetermined range, the mixing ratio between the soil and the soil improving material is accurately adjusted.
Here, depending on the properties of the earth and sand, the degree of solidification due to the addition of the soil improvement material may be different. Therefore, a desirable mixing ratio is determined in advance by experiments or the like. The mixing ratio between the earth and sand and the soil improvement material may be set as a volume ratio or as a weight ratio. The mixing ratio is desirably set as a weight ratio in consideration of the relationship with the density and viscosity of the earth and sand. Further, when earth and sand are charged in the bucket B of the hydraulic excavator PS, since the amount is intermittent, the storage capacity of the earth and sand in the earth and sand hopper 20 changes, and the earth and sand passing through the gate 22 is correspondingly changed. Even if the level of the earth and sand conveyed by the conveyor 10 is made constant by leveling with the leveling roller 24, the density and the like change based on the fluctuation of the pressure in the earth and sand hopper 20. Further, just because the gate 22 and the leveling roller 24 are provided, a certain amount of earth and sand is not necessarily conveyed on the conveyor 10. For example, depending on the storage capacity of the earth and sand in the earth and sand hopper 20, only the earth and sand below the gate 22 may be conveyed.

The earth and sand supply amount measuring means 50 is provided by the earth and sand hopper 2.
It measures the weight of the earth and sand sent out from zero.
By detecting the load acting on the weight measuring roller 52 with the load sensor 55, the earth and sand supply amount measuring means 50 directly detects the weight of the earth and sand conveyed along the conveyor 10. Then, the soil improving material is supplied from the soil improving material hopper 30 at a position downstream of the earth and sand supply amount measuring means 50 in the conveyor 10, and the supply amount of the soil improving material is It can be adjusted by the rotation speed of the supply feeder 42. Therefore, the electric motor 46 is controlled based on the signal from the load sensor 55 to adjust the rotation speed of the fixed-quantity supply feeder 42 and change the supply amount of the soil improvement material. Thereby, even if the transport amount of the earth and sand on the conveyor 10 changes, the mixing ratio of the earth and sand and the soil improvement material can be made constant.

While the earth and sand supply amount measuring means 50 detects the weight of the earth and sand, the soil improvement material hopper 30
Is controlled by the rotation of the fixed-quantity feeder 42, not the weight of the soil improvement material,
The volume is to be controlled. However, the soil improvement material hopper 30 includes the storage unit 31 and the fixed amount supply unit 32, and communicates through the communication hole 36 between the storage unit 31 and the storage unit 3.
The inside of 1 is agitated by constantly rotating the rotating rod 37. Therefore, a fixed amount of soil improvement material is always stored in the fixed amount supply unit 32, and a separate chamber is configured from the storage unit 31, so that it is affected by the storage amount of the soil improvement material in the storage unit 31, Fixed feeder 42
Does not substantially change the weight per unit volume of the soil improving material supplied in the above.

From the above, the mixing ratio of the earth and sand conveyed by the conveyor 10 and the soil improvement material supplied from the soil improvement material hopper 30 is adjusted to be the weight ratio of the soil and soil improvement material determined by the experiment. It can be controlled accurately. As a result, the produced improved soil has a degree of solidification within a predetermined range, and therefore has an extremely high quality. In addition, for example, when the earth and sand are continuously supplied to the earth and sand hopper 20, the transport amount of the earth and sand can be detected by the volume.
For this purpose, for example, a high-rigidity belt such as a steel belt which does not bend depending on the state of earth and sand is used for the conveyor 10 and the leveling roller 24 can be moved in the vertical direction. By detecting the height position of 24, it is also possible to function as earth and sand supply amount measuring means for detecting the amount of earth and sand transported on the conveyor 10. In the case where the earth and sand supply amount measuring means is configured as described above, the leveling roller 24 may function as a height measuring device, and the supply amount of the soil improvement material may be changed according to the detected height.

The quality of the improved soil greatly depends on the degree of mixing of the soil and soil improving material. The reason why the processing tank 60 having the paddle mixer 64 is used is to stir and mix the earth and sand and the soil improving material as uniformly as possible.
Two paddle mixers 64 are provided in the processing tank 60, and rotate in mutually opposite directions as indicated by arrows in FIG. Therefore, inside the processing tank 60, a swirling flow is formed over substantially the entire area by the shearing and stirring action of the paddle 66 attached to the rotating shaft 65 of the paddle mixer 64, and the entire inside of the tank is stirred as a result. The earth and sand and the soil improvement material are uniformly mixed. Further, since the paddle 66 is oriented obliquely with respect to the axis of the rotating shaft 65, the mixture of the earth and sand and the soil improvement material is transferred toward the discharge cylinder 63 while being stirred at a speed corresponding to the angle. You. Therefore, during this period, the poor earth and sand is converted into high quality improved soil. Since the inside of the processing tank 60 is a substantially closed space except for the introduction cylinder 62 and the discharge cylinder 63, the soil improvement material and the earth and sand are surrounded by the paddle 66 during the stirring by the paddle 66. There is no risk of scattering.

It is necessary to stir and mix the earth and sand and the soil improving material in the processing tank 60 more efficiently. To do this,
The shearing of the earth and sand by the paddle 66 of the paddle mixer 64 and the stirring of the earth and sand and the soil improving material are always kept in a state where they can be efficiently performed. If the earth and sand adhere to and adhere to the paddle 66, the shearing and stirring efficiency is reduced. Two paddle mixers 6
4 is extended to a position where one paddle 66 is close to the other rotating shaft 65, and the paddles 66 provided on both paddle mixers 64 are viewed from the axial direction of the rotating shaft 65.
They are almost superimposed on each other. Therefore, even if earth and sand adhere to the surface of the paddle 66 during the operation of the paddle mixer 64, the earth and sand adhered to the paddle 66 will be scraped off by the relative rotation with the paddle 66 of the other party, so that the self-cleaning effect will be exhibited. The stirring efficiency of the paddle 66 can be kept good.

After the soil improvement treatment is completed, the lid 60b in the treatment tank 60 is separated and the tank body 60a is separated.
Opening the upper part of the door, and opening and closing door 61 provided on the side
By opening the paddle, the earth and the like adhering to the paddle 66 can be easily removed, and the maintainability is improved. Accordingly, by performing this work at an appropriate frequency, it is possible to maintain a state where the operation of the paddle mixer 64 can be performed smoothly and efficiently. The paddle 66 is worn due to friction with earth and sand, etc., and the stirring efficiency is reduced for a long period of time. However, since the wear substantially occurs in the paddle body 66b, the worn paddle body 66b is removed by removing the bolt 66c.
Can be easily replaced.

When the viscosity of the earth and sand sent into the processing tank 60 is low, it is better to stay in the processing tank 60 for as long as possible and to stir slowly, so that the reaction between the earth and sand and the soil improving material is improved. Can be promoted. Therefore, when processing low-viscosity earth and sand, the paddle mixer 6
It is desirable to rotate 4 at low speed. On the other hand, when processing high-viscosity earth and sand, if the rotation speed of the paddle mixer 64 is reduced, the earth and sand is stuck to the paddle 66,
Not only does it hinder the rotation of the paddle mixer 64, but in extreme cases, it can lock. Therefore, the higher the viscosity of the earth and sand, the more the paddle mixer 6
4 needs to be rotated at high speed.

The earth and sand supplied from the conveyor 10
Since the weight is adjusted by the gate 22 and the leveling roller 24 so as to have a constant volume, and the weight is detected by the earth and sand supply amount measuring means 50, the weight measurement from the earth and sand supply amount measuring means 50 is performed. The bulk density of the earth and sand can be known based on the signal. That is, for soils of the same nature, the higher the viscosity, the higher the bulk density. Therefore, based on the measurement signal from the earth and sand supply amount measuring means 50, the rotation speed of the hydraulic motor 70 for rotating the paddle mixer 64 is increased when the earth and sand viscosity is high, and when the earth and sand viscosity is low, It can be controlled to rotate at low speed.

A controller 80 as shown in FIG. 17 is provided to control the entire operation of the soil improvement machine. The controller 80 receives signals from each sensor and detector constituting the machine and outputs control signals to each unit. The controller 80 includes a data input unit 81 that performs input processing of various signals, a data conversion unit 82 that performs processing such as signal amplification and A / D conversion, and a predetermined operation or comparison based on the input data. And a control signal for controlling a controlled unit such as a hydraulic actuator or a control valve based on the signal processed by the data processing unit 83. The control signal passes through a data converter 84 that performs data conversion such as D / A conversion, and a signal for controlling the operation of each controlled unit is output via a data output unit 85.

Therefore, a signal from the load sensor 55 constituting the earth and sand supply amount measuring means 50 is transmitted to the controller 80.
The electric motor 46 for driving the fixed-quantity feeder 42 of the fixed-quantity supply unit 32 in the soil improvement material hopper 30 is controlled based on the mixing ratio set in the controller 80 in advance. The amount of the soil improving material supplied from the section 32 is adjusted. Further, since the rotation speed of the paddle mixer 64 in the processing tank 60 is also controlled by a signal from the load sensor 55,
The controller 80 also outputs a control signal to the hydraulic motor 70 for driving the paddle mixer 64.

Various data at the time of execution of the soil improvement processing work are taken into the internal memory 86, and the various data stored in the memory 86 are sent to the I / O processing unit 87. For example, by downloading to a personal computer 88, necessary data is processed by the personal computer 88 according to a predetermined algorithm, and then the data is stored in an external storage device 89 connected to the personal computer 88. Thus, the data is taken into the personal computer 88 in order to store and manage various data relating to the soil improvement process.

Therefore, in order to improve the reliability of the soil improvement processing, it is preferable to store data in which the processing procedure and the like are recorded so that the performance of the soil improvement processing can be analyzed at a later date. In particular, the total amount of soil improvement and
It is necessary to save data on the mixing ratio of soil and soil improvement material. In addition, at least the mixture ratio must be time-series data because of the continuous processing. Therefore, the memory 86 attached to the controller 80 stores in time series at least the output signal from the load sensor 55 constituting the earth and sand supply amount measuring means 50 and the data on the number of rotations of the quantitative supply feeder 42 by the electric motor 45. Take it in and store it. As a result, accurate data on the mixing ratio between the earth and sand and the soil improvement material can be obtained. It is in the treatment tank 60 that the improved soil is actually produced. In this processing tank 60,
By operating the paddle mixer 64, agitation, mixing, and transfer of the earth and sand and the soil improvement material are performed. The rotational speed of the paddle mixer 64 is also changed depending on the viscosity of the earth and sand to be processed. Therefore, data on the rotational speed of the paddle mixer 64 is also acquired. As a result, the entire situation of the soil improvement processing can be recorded.

Therefore, when the work is completed, these data can be downloaded to the personal computer 88 by connecting the personal computer 88 via the I / O processing section 87 of the controller 80. By taking data into a storage device 89 attached to the storage device 88, for example, a nonvolatile memory such as a flexible magnetic disk, a magneto-optical disk, or a memory card, it becomes convenient to store, analyze, and verify the data. It will be a very convenient material for verifying the quality of the product.

By the way, the conveyor 10 has a processing tank 60.
Since the earth and sand and the soil improving material are supplied from the upper part of the main frame 2, the soil improving material hopper 30 is disposed at least higher than the processing tank 60 in the main body frame 2. When the volume thereof is increased, the soil improving material hopper 30 It will protrude greatly upward. The machine room 6 also needs a certain size in the height direction depending on the equipment provided inside. Then, in order to arrange the soil improving material hopper 30 and the machine room 6 compactly on the main body frame 2, as shown in FIG. 1, these mechanisms are arranged above the processing tank 60. Since the treatment tank 60 is for stirring and mixing while transporting the earth and sand and the soil improving material in the horizontal direction, the treatment tank 60 is elongated in the horizontal direction, but the dimension in the height direction is too large. do not have to. Therefore, soil improvement material hopper 3
0 and the dimension of the machine room 6 in the height direction can be reduced. Also,
In the discharge conveyor 73, a bent portion 73b is provided, and the bent portion 73b is positioned at the highest position on the main body frame 2, in the structure of FIG. 1, the same as or higher than the upper end of the soil improving material hopper 30. By bending at a low position, the height of the discharge conveyor 73 can be reduced.

By the way, as described above, when the self-propelled soil improvement machine is carried into the place where the soil to be soil-improved is generated,
When a soil improvement machine is sequentially carried into a plurality of small yards to perform soil improvement processing, the soil improvement machine must be transported by being loaded on a trailer or the like. Since the transport route includes a guard, a pedestrian bridge, and the like, the height of the soil improvement machine when the vehicle is loaded on a trailer and transported is limited. Therefore, if the self-propelled soil improvement machine can be configured so as not to have a very large dimension in the height direction, for example, by using the processing tank 60 that does not require a very large dimension in the height direction as described above, if the self-propelled soil improvement apparatus can be constructed. As a result, the height dimension of the entire machine can be suppressed, so that the transportation carried by loading on the trailer becomes convenient, and good transportability can be secured.

However, if the height of the soil improvement machine is not taken into consideration, it is also possible to use, for example, a crushing type processing mechanism shown in FIG. This processing mechanism includes a rotary cutter 92 and a plurality (for example, three) of rotary impact members (for example, three) at different positions in a vertical direction and a front-rear direction inside a housing 91 opened at an end of a transport conveyor 90 constituting a supply unit. (Rotating impactor) 93 is provided, and a discharge conveyor 94 is provided below the housing 91.

Although not shown, the above-described conveyor 90 is provided with a soil hopper, a soil supply amount measuring means, and a soil improvement material hopper from the upstream side in the transport direction. The transport amount is detected, and the soil improving material in an amount corresponding to the transport amount is supplied from the soil improving material hopper. This configuration is not particularly different from the supply unit 3 shown in FIG.

When the earth and sand and the soil improvement material are transported to the end position of the conveyor 90, the earth and sand are sheared by the rotary cutter 92 and fall under their own weight. The rotary hitting member 93 provided in the middle of the falling path has a large number of hitting protruding pieces 93b provided on the outer peripheral surface of the rotary shaft 93a.
Are rotated in the directions indicated by the arrows. As a result, the earth and sand and the soil improving material that fall from the conveyor 90 under their own weight are moved by the striking projections 9 during the fall.
It is crushed by being hit by 3b, and the earth and sand and the soil improvement material are mixed. Here, in this crushing method, unlike the stirring and mixing of the earth and sand and the soil improvement material by the paddle mixer 64 in the processing tank 60 described above, the soil and sand are finely crushed by hitting, and then the soil improvement material is mixed. is there. Accordingly, although the soil improving material varies to some extent, the impact is applied to the earth and sand, so that the earth and sand do not adhere to the impacting protruding piece 93b and stick, so that the stability of operation and the ease of maintenance are secured.

When a crushing mechanism is used in place of the processing tank 60 as the processing mechanism, it is necessary to increase the chance of hitting as much as possible while the soil falls by its own weight. Must be lengthened, so that the size of the processing mechanism in the height direction becomes considerably larger than when the processing tank 60 is used. In this case, the transport conveyor 90 is connected to the upper part of the processing mechanism (crushing mechanism) having a large dimension in the height direction as described above, and further above the transport conveyor 90, in order to secure a predetermined capacity, usually. A soil improvement material hopper 30 having a relatively large height dimension is disposed, and its upper end is usually the highest position of the height of the entire self-propelled soil improvement machine (see FIG. 1). . For this reason, as described above, the dimension of the self-propelled soil improvement machine in the height direction is increased, and the transportability at the time of transportation by loading on a trailer is caused.

However, by making the soil improving material hopper 30 detachable (for example, detachable from the support 9 provided on the main body frame 2), for example, a self-propelled soil improving machine is loaded on a trailer or the like. When transporting, the soil improvement material hopper 30 is removed and separately placed on the trailer, so that the height dimension (vehicle height) of the entire self-propelled soil improvement machine can be greatly reduced by the removed amount. That is, when the soil improving material hopper 30 is attached, the upper end thereof is normally at the highest position of the height of the entire self-propelled soil improving machine as described above, but the soil improving material hopper 30 is removed. In this case, any one of the processing mechanism unit 4, the earth and sand hopper 20, the transport conveyor 90, the discharge conveyor 73, and the machine room other than the soil improvement material hopper 30 is the highest position of the height of the self-propelled soil improvement machine. As a result, the above-described problem of height limitation during transportation can be avoided, and transportability during transportation by loading on a trailer can be improved.

The same applies to the case where the soil improvement material hopper 30 is disposed and fixed at a position other than the upper part of the machine room treatment mechanism.

As described above, the processing mechanism may be either a continuous processing type using a paddle mixer or a pulverizing mechanism.

[0063]

As described above, according to the present invention,
Since the soil improvement material hopper is detachably provided, when the self-propelled soil improvement machine is loaded on a trailer and transported, the soil improvement material hopper is removed from the main frame to allow the self-propelled The height dimension of the entire soil improvement machine can be greatly reduced. As a result, it is possible to improve the transportability at the time of transporting by loading on a trailer.

[Brief description of the drawings]

FIG. 1 is a front view of a self-propelled soil improvement machine showing one embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a left side view of FIG.

FIG. 4 is a diagram illustrating the configuration of a transport conveyor according to the present invention.

FIG. 5 is a sectional view of the earth and sand hopper of the present invention.

FIG. 6 is a sectional view of a soil improvement material hopper of the present invention.

FIG. 7 is a sectional view taken along line XX of FIG. 6;

FIG. 8 is a diagram illustrating the operation of the fixed quantity supply mechanism of the present invention.

FIG. 9 is an operation explanatory view of the fixed quantity supply mechanism showing an operation state different from that of FIG. 8;

FIG. 10 is an explanatory diagram of the configuration of the earth and sand supply amount measuring means of the present invention.

FIG. 11 is a diagram illustrating the principle of measuring the supply amount of earth and sand according to the present invention.

FIG. 12 is an external view of a processing tank in which a paddle mixer of the present invention is omitted.

FIG. 13 is a cross-sectional view of the processing tank of the present invention.

FIG. 14 is a sectional view taken along line YY of FIG.

FIG. 15 is a sectional view taken along the line ZZ of FIG.

FIG. 16 is an operation explanatory view showing a state in which soil improvement is performed in the yard by the soil improvement machine of the present invention.

FIG. 17 is a block diagram showing a control device of the soil improvement machine of the present invention.

FIG. 18 is a configuration explanatory view of a crushing mechanism as another example of the processing mechanism of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Lower traveling body (traveling body) 2 Main body frame 3 Supply part 4 Processing mechanism part 5 Discharge part 10 Transport conveyor (first transport means) 20 Earth and sand hopper 21 Sieving means 22 Gate 24 Leveling roller 30 Soil improving material hopper 32 Fixed amount supply unit 37 Rotating rod 42 Fixed amount supply feeder 46 Electric motor 50 Sediment supply amount measuring means 51 Fixed roller 52 Weight measuring roller 55 Load sensor 60 Processing tank 64 Paddle mixer 66 Paddle 70 Hydraulic motor 73 Discharge conveyor (second conveying means) 80 Controller 86 Memory 88 Personal computer 90 Transport conveyor (first transport means) 91 Housing 92 Rotary cutter 93 Rotary hitting means 94 Discharge conveyor (second transport means)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hideki Fukuzawa 5-14-2 Kanayama, Naka-ku, Nagoya-shi, Aichi Prefecture Within Daiyu Construction Co., Ltd. (72) Inventor Hisamoto Hashimoto 650, Kandamachi, Tsuchiura-shi, Ibaraki Hitachi Construction Machinery Co., Ltd. Tsuchiura Plant (72) Inventor Toshikazu Murai 650, Kandamachi, Tsuchiura City, Ibaraki Prefecture Hitachi Construction Machinery Co., Ltd., Tsuchiura Plant (72) Inventor Fujio Sato 650, Kandamachi, Tsuchiura City, Ibaraki Prefecture Hitachi Construction Machinery Inside the Tsuchiura Plant, Ltd. (72) Inventor Fumiki Nakagiri 2-5-1 Koraku, Bunkyo-ku, Tokyo Inside Hitachi Construction Machinery Co., Ltd. Construction Machinery Co., Ltd. (72) Inventor Yasuharu Yamamoto 2-5-1 Koraku, Bunkyo-ku, Tokyo Hitachi Construction Machinery Co., Ltd. F-term in Tsuchiura Plant of Ritsu Construction Machinery Co., Ltd. (reference) 4D067 DD04 DD13 DD14 EE02 EE04 GA03 4G035 AB48 AE13 4G078 AA13 AB01 BA01 BA07 BA09 CA01 CA05 CA12 CA17 DA01 DB03 EA10

Claims (5)

[Claims] A traveling body; a main body frame provided on the traveling body; a processing mechanism provided in the main body frame for mixing earth and sand with a soil improving material; A first sand transporting means arranged such that one side is below the earth and sand hopper and the other side is facing the processing mechanism, and the modified earth and sand from the processing mechanism is transferred in the longitudinal direction of the main body frame. A second transporting means provided on the main body frame so as to discharge to the other side; a machine room provided on the other side in the longitudinal direction of the main body frame; and a detachable between the processing mechanism and the earth and sand hopper. A self-propelled soil improvement machine provided with a soil improvement material hopper for supplying the soil improvement material to the soil. 2. The self-propelled soil improvement machine according to claim 1, wherein the soil improvement material hopper has a supply port for the soil improvement material positioned between the processing mechanism and the earth and sand hopper. Self-propelled soil improvement machine, which is installed. 3. The self-propelled soil improvement machine according to claim 1, wherein an upper end portion of the self-propelled soil improvement machine is located at the highest position of a height of the self-propelled soil improvement machine when the soil improvement material hopper is attached. When the soil improving material hopper is removed, any of the processing mechanism other than the soil improving material hopper, the earth and sand hopper, the first transporting means, the second transporting means, and the machine room are self-propelled. A self-propelled soil improvement machine characterized by being arranged at the highest position of the height of the soil improvement machine. 4. The self-propelled soil improvement machine according to claim 1, wherein the processing mechanism is configured to change a position of the plurality of rotary impactors in a vertical direction on a path along which soil and soil improvement material falls by its own weight. Self-propelled soil improvement machine characterized by a crushing mechanism provided. 5. The self-propelled soil improvement machine according to claim 1, wherein the processing mechanism has an introduction portion into which the earth and sand and the soil improvement material are introduced, and a discharge portion to discharge the improved soil. Tank, and a plurality of rotating shafts provided in the processing tank, comprising a stirring blade intermittently or continuously attached to the plurality of rotating shafts, by rotating the plurality of rotating shafts, A self-propelled soil improvement machine, wherein the soil and soil improvement material are mixed and transferred from the introduction section toward the discharge section.