JP3416582B2 - Self-propelled soil improvement machine - Google Patents

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 to reinforce the ground and improving the quality of earth and sand to meet a predetermined purpose. The present invention relates to a self-propelled soil improvement machine.

[0002]

2. Description of the Related Art For example, a large amount of backfill material is required for burying gas pipes, water and sewer pipes, and for other road works and foundation works. In road construction, it is only necessary to backfill the earth and sand generated by excavation, but some excavated soil is not suitable for backfilling. In this case,
The excavated soil must be discarded and backfilled with good quality soil. In addition, in foundation works such as soil reinforcement in soft ground, the soil quality is poor in the first place, so it is necessary to replace the soil. For this reason, it is common to excavate a site for ground improvement to a predetermined depth and to refill the excavated site with good quality soil.

As described above, in various road works and foundation works, it is necessary to discharge the generated soil by excavation and to supply a high-quality backfill material, but it may not be possible to secure a disposal site for the generated soil. It is said that mountain soil is preferable as the backfill material, but in recent years, it is becoming difficult to obtain high quality mountain soil. In particular, it is the urban area and its vicinity that the various types of construction work described above are executed, that is, the discharge of the generated soil and the consumption of the backfill material are usually in the urban area and its vicinity. In many cases, the supply source of the materials is far from the construction site, which causes a traffic obstacle due to the passage of the dump truck that carries them, and is extremely disadvantageous in terms of cost. Become.

From the above points, it is strongly desired to convert excavated soil into a material suitable for a desired purpose such as soil improvement by backfilling or ground improvement for recycling. Soil improvement plants and soil improvement machines have been developed to meet such demands. Here, the soil improvement is basically a treatment for uniformly mixing the soil and the soil improving material. For example, when it is used for backfilling, ground improvement, etc., the soil improvement agent used is one having a function of solidifying earth and sand such as lime and cement.

Here, various mechanisms can be used as the mixing method of the soil and the soil improving material, and representative ones thereof are the mixing method and the crushing method. Among them, the mixing method is configured as a stirring device mounted in a predetermined container, and the stirring device has a function of only stirring the inside of the container, and it is moved in a predetermined direction while stirring and mixing. There are things. A stirring means having a stirring function and a transfer function is provided with a soil and soil improvement agent opening at one end side and an improved soil discharge portion at the other end side for continuous soil improvement treatment. Can be done on a regular basis. In addition, the crushing method, when the mixture of earth and sand and soil improvement material is dropped by its own weight, by hitting with a rotary impactor to finely crush the earth and sand, and the crushed earth and soil and soil improvement material. Try to mix. Therefore, the soil improvement of the crushing method is continuously performed.

Regardless of which method is used, since the soil improvement treatment is to regenerate and recycle poorly generated soil, suppression of natural destruction due to shaving of mountains, etc.,
There are various advantages such as prevention of illegal dumping of poor soil and control of traffic obstacles due to frequent passage of dump trucks.Expectations for this type of soil improvement plant and soil improvement machinery have increased in recent years. ing. By the way, in order to perform soil improvement in plant equipment, in addition to a soil improvement machine, a soil accumulation site that requires treatment, and the accumulation of improved soil that temporarily accumulates the improved soil obtained by soil improvement It is necessary to have a place. Moreover, for example, when there is a considerable time lag between the time of excavation and the time of backfilling of the excavation site, the amount of sediment carried in and the amount of improved soil carried out cannot be balanced. . Therefore, a space for receiving a large amount of earth and sand is required, and a place for temporarily stocking a considerable amount of improved soil must be provided. Therefore, the soil improvement plant requires an extremely large space.

The generation of excavated soil and the demand for improved soil are mainly in the urban area and its vicinity, but it is practically impossible to install an soil improvement plant which requires an extremely large space in the vicinity thereof. Therefore, the location of the soil improvement plant is limited to a position far away from the site where the soil to be improved is generated and the improved soil is consumed. Therefore, it is necessary to collect sediment from extremely remote areas and transport the improved soil produced to remote areas. Since the transportation of the soil and the improved soil is usually performed by a dump truck, there is a problem that the transportation cost in the production of the improved soil becomes extremely high in addition to a traffic problem called so-called dump pollution. In addition, since the cost of the improved soil is high, illegal dumping frequently occurs and causes environmental damage.

[0008]

In consideration of the above points,
The present applicant has developed a soil improvement system in which yards with narrow spaces are dispersed and arranged, and a machine for soil improvement can be reused in a plurality of yards, and as a Japanese Patent Application No. 10-357813. Filed a patent application. The soil improvement system in the invention of this earlier application includes a vehicle equipped with a processing machine for mixing and stirring soil and soil improving material, a hydraulic excavator, and a sieving unit for sieving the produced improved soil, A wheel loader that accumulates the improved soil at a predetermined position is used. As the processing machine, a crawler type traveling means is provided, and a processing tank for agitating and mixing the soil and the soil improving agent, and a sediment supplying means and a soil improving agent supplying means are provided. As a processing tank,
This is a continuous mixing mechanism configured to generate improved soil by continuously mixing and agitating the earth and sand and a soil improvement material and continuously discharging the generated improved soil.

Here, the earth and sand supply means has an earth and sand hopper, and the earth and sand is loaded into the earth and sand hopper by a hydraulic excavator. As a result, the soil improvement process is started, but the mixing machine is held in a stopped state while the soil improvement process is being performed, and the operation of each device constituting the mixing machine is automatically controlled. Therefore, the operator only needs to operate the hydraulic excavator while the soil improvement process is being executed. However, since the soil improvement agent is supplied from the soil improvement agent means, the soil improvement agent must be replenished when the storage amount decreases. Therefore, an operator must enter the mixing machine during the work of supplying the soil improvement material. Here, since the earth and sand hopper has a predetermined volume, if the earth and sand hopper is filled up, even if the earth and sand supply to the earth and sand hopper is interrupted, the soil improvement processing can be continued for some time. Therefore, it is possible to continue the soil improvement treatment even when replenishing the soil improvement material. Therefore, it is necessary to make preparations for replenishing the soil-improving material before the remaining amount of the soil-improving material is very small. We must always be aware of the remaining amount of soil improvement materials in.

[0010] For example, even if a small soil yard is used for treatment, the improved soil can be treated regardless of simple soil improvement such as carrying a machine to the excavation site to improve the soil and backfill it. When selling as a product, it is necessary to ensure high quality and stable quality.
The quality of the produced improved soil depends on the mixing ratio of the soil and the soil improving agent, the degree of mixing, and the particle size thereof. In particular,
It is necessary to control the mixing ratio as strictly as possible. Therefore, in order to recognize the quality of the improved soil, it is necessary to have data on the transition of the supply amount of the soil improvement material at least during the soil improvement treatment. In addition, when the amount of earth and sand supplied from the earth and sand supply means changes, in addition to the soil conditioner, it is necessary to obtain data on the amount of earth and sand treated, that is, the amount of treated soil.

Furthermore, since the object to be treated is earth and sand, depending on the nature and state of the earth and sand, such as the water content, it has a great influence on the handleability in the soil improvement treatment. . Moreover, various foreign substances may be mixed in the earth and sand put into the earth and sand hopper. Most foreign matter can be removed by sieving with a sand hopper, but there is a possibility that the operating state of the processing tank may change due to the influence of remaining foreign matter, flexible materials such as sheets, and the like. Therefore, various troubles may occur during the soil improvement treatment. Such trouble,
In the event of any other failure, the cause must be investigated promptly in order to recover quickly and accurately.

In a large-scale processing plant in which soil improvement machines are fixedly installed, it is common to construct a system capable of centrally controlling the operating conditions of machines in a control room or the like. As described above, it is difficult to adopt such a central control system in the soil improvement machine configured to be reused in a plurality of yards.

The present invention has been made in view of the above points, and an object of the present invention is to consume at least the amount of the soil improving material during the soil improving treatment by the self-propelled soil improving machine. The purpose is to allow the worker to easily and accurately recognize the remaining amount.

[0014]

In order to achieve the above-mentioned object, the present invention provides a main body frame, a lower traveling body provided on the main body frame, and a earth and sand and soil improvement material provided on the main body frame. And a mixing means for mixing with the earth and sand hopper provided on the main body frame for receiving the input earth and sand, and a carry-in for installing the input earth and sand received by the earth and sand hopper below the earth and sand hopper to the mixing means. A conveyor, a sediment supply amount measuring means provided on the carry-in conveyor and detecting the amount of sediment supplied to the mixing means by the carry-in conveyor, a soil-improving material supply means provided on the main body frame, and a soil-improving material. Soil quality improvement material supply amount detection means for detecting the amount of soil quality improvement material supplied from the material supply means and various conditions regarding the operation of each equipment are set.
Operation unit, control of each device based on the signal from this operation unit
Control signal output and measure the amount of sediment supply.
Measuring signal from the measuring means and the soil quality improving material supply amount detecting means
Soil volume and soil quality improvement calculated based on the detection signal from
Performs processing to output a data signal related to the consumption of good materials
Control means and treated soil volume output from this control means
And data on soil quality improvement material consumption.
Position it so that the operator can operate it.
And an operation panel provided on the main body frame . In order to achieve the above-mentioned object, the present invention also includes a main body frame, a lower traveling body provided on the main body frame, and a mixing unit that is provided on the main body frame and that mixes earth and sand with a soil improvement material. Provided on the main body frame, a sediment hopper that receives the input sediment, and a carry-in conveyor that is provided below the sediment hopper and that carries the input sediment received by the sediment hopper to the mixing means, and provided on this carry-in conveyor. The soil supply amount measuring means for detecting the amount of earth and sand supplied to the mixing means by the carry-in conveyor, the soil quality improving material supply means provided on the body frame, and the soil quality supplied from the soil quality improving material supply means. Soil quality improvement material supply amount detection means for detecting the amount of quality improvement material and the operation of each equipment
The operation unit that sets various conditions to be set, the signal from this operation unit
Based on the processing to output the control signal to each device based on
The measurement signal from the sediment supply amount measuring means and the soil
Calculation based on the detection signal from the improved material supply amount detection means
Data signals on the amount of treated soil and the remaining amount of soil improvement material
Control means for performing processing you output, and the control means
Data regarding the output amount of treated soil and the remaining amount of soil improvement material
Has a monitor that displays the
Operation panel provided on the main body frame so that
With .

[0015]

[0016]

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show the entire structure of a self-propelled soil improvement machine. First, in FIG. 1, 1 is a lower traveling body, and the lower traveling body 1 is configured to include a crawler type means having a crawler belt 1a. However, it can also be configured with a wheel-type traveling body.

A body frame 2 forming a chassis is connected to the lower traveling body 1. In the main body frame 2, when the left side in FIG. 1 is the front of the machine, the supply unit 3 is arranged at the front position. Further, the processing mechanism section 4 is mounted at the rear position thereof, and the processing mechanism section 4 is further mounted.
A discharging unit 5 is provided further rearward. The discharge unit 5 extends obliquely upward from the lower position of the processing mechanism unit 4,
A machine room 6 containing machines such as an engine, a hydraulic pump, and a directional control valve unit is provided at an upper position of the processing mechanism section 4. The machine room 6 is supported by a support rod 6 a provided upright on the body frame 2.

The supply unit 3 is a mechanism for supplying earth and sand and a soil improving material, and also has a mechanism for measuring the amount of earth and sand in order to adjust the mixing ratio of the earth and sand and the soil improving material to be supplied. Further, the supply section 3 is also provided with a carry-in conveyor 10 for conveying the earth and sand and the soil conditioner toward the processing mechanism section 4. In the transport direction of the carry-in conveyor 10, the earth and sand hopper 20 is installed on the front side of the machine, which is the most upstream side,
Further, the soil improvement material supply device 30 is installed at a position rearward of the earth and sand hopper 20. Further, the amount of earth and sand conveyed is measured by the carry-in conveyor 10, and the amount of the soil quality improving material supplied by the soil quality improving material supply device 30 is adjusted according to the measured amount.

The carry-in conveyor 10 is supported at a position between the crawler belts 1a, 1a by a support 7 provided so as to project forward from the main body frame 2. Here, the support 7 is lowest at the base end side and is inclined so as to rise obliquely upward as it goes to the side where the main body frame 2 is connected to the support frame 7. Therefore, the carry-in conveyor 10 also extends obliquely upward from the front side. Is present. The height position of the base end portion of the carry-in conveyor 10 is higher than the ground contact surface of the crawler belt 1a, but lower than the body frame 2. This is for lowering the height of the earth and sand hopper 20 to facilitate the introduction of earth and sand.

As is apparent from FIG. 4, the carry-in conveyor 10 has a conveyor belt 11 (shown by phantom lines), and the conveyor belt 11 is made of an endless sheet-shaped rubber or the like, and has a load. Is actuated, it is configured to bend by an amount corresponding to the load. Further, reference numeral 12 denotes a conveyor frame, and rotary shafts 13a and 14a connected to a driving roller 13 and a driven roller 14 are rotatably connected to both ends of the conveyor frame 12, respectively. The conveyor belt 11 is wound around the drive roller 13 and the driven roller 14. A hydraulic motor 15 is connected to a rotary shaft 13a provided with a drive roller 13. By rotating the rotary shaft 13a with the hydraulic motor 15, the drive roller 13 is rotationally driven to convey the conveyor belt 11.
Is sent in the direction of the arrow in FIG.

Guide plates 16 are provided on both left and right sides of the transport surface of the transport belt 11, and the guide plates 16 project upward from the transport surface of the transport belt 11 by a predetermined height. Both of these guide plates 16 function as a restriction wall that prevents lateral overflow of the earth and sand when the conveyor belt 11 conveys a predetermined height. Further, guide rollers 17 are provided on the conveyor belt 11 at a predetermined pitch in the conveying direction. Further, the rotary shaft 14a on which the driven roller 14 is mounted is not directly connected to the conveyor frame 12, but the tension adjusting means 18 is interposed between the rotary shaft 14a and the conveyor frame 12 to adjust the tension of the conveyor belt 11 to be constant. . The tension adjusting means 18 is provided with means such as a load sensor for detecting the degree of tension of the conveyor belt 11 so that the tension of the conveyor belt 11 can be adjusted to a constant value. However, illustration of these specific configurations is omitted.

The earth and sand hopper 20 is composed of a frame-shaped member having an opening at the top and bottom. As shown in FIG. 5, the earth and sand hopper 20 is on the upper side and the earth and sand supply section 20b to the carry-in conveyor 10 on the lower side. ing. In order to smoothly carry out the earth and sand charging work, the receiving opening that is opened at the upper end of the receiving portion 20a is a wide mouth. Further, since the earth and sand are supplied to the carry-in conveyor 10 from the bottom of the supply unit 20b, the supply unit 20b
The supply port, which is the opening at the lower end of, is the same as or slightly smaller than the width of the belt 11 of the carry-in conveyor 10. This earth and sand hopper 20 is a frame member 8
It is fixedly held by the main body frame 2.

On the receiving portion 20a side of the earth and sand hopper 20, foreign matter sieving means 21 including a sieve and a cage is installed. This sieving means 21 may be fixedly provided in the receiving portion 20a of the earth and sand hopper 20, but this receiving portion 20
It is preferable that the sieving means 21 is attached to a and is connected to the vibrating means so that the sieving means 21 is vibrated by the vibrating means. And this sieving means 2
The receiving portion 20a of the earth and sand hopper 20 equipped with 1 is inclined, so that the earth and sand is thrown in from the front side of the earth and sand hopper 20 using, for example, a bucket of a hydraulic excavator,
The earth and sand are selectively passed through the sieving means 21, and the solid lumps that have not passed are removed by rolling along the slope. Therefore, the earth and sand hopper 20 and the sieving means 21 constitute earth and sand supply means.

The earth and sand put into the earth and sand hopper 20 falls from the supply section 20b onto the conveyor belt 11 of the carry-in conveyor 10 by the action of its own weight, and is conveyed by the conveyor belt 11. It is not always necessary to adjust the amount of earth and sand conveyed by the conveyor belt 11, but as will be described later, in order to detect the amount of earth and sand conveyed and keep the mixing ratio with the soil improvement agent constant, the amount of earth and sand conveyed should be as small as possible. It is desirable to make adjustments so that the amount does not change.

From the above, and since the height level of the earth and sand on the conveyor belt 11 is regulated by the protruding height of the guide plates 16 protruding from both ends of the conveyor belt 11, the lower end portion of the earth and sand hopper 20. A gate 22 having an opening area limited to a height that does not exceed the protruding height position of the guide plate 16 is formed. Therefore, when the conveyor belt 11 is sent, the earth and sand hopper 20 conveys the earth and sand in a volume corresponding to the height set by the gate 22 in a piled state. Further, in order to level the sediment deposited on the conveyor belt 11 that has passed through the gate 22, a leveling roller 24 having a claw 23 protruding from the outer peripheral surface is rotatably provided on the outlet side of the gate 22. As a result, the height of the transported earth and sand is adjusted to be substantially constant.

Next, the soil quality improving material supplying means 30 is fixedly held by the main body frame 2 by the pillars 9, and the construction thereof is as shown in FIGS. 6 to 9. here,
As the soil improvement material, various materials can be used depending on the application of the produced improved soil. For example, when backfilling an excavation site or when improving the ground, lime or cement and a mixture thereof with a desired additive are used. In addition, it can be used for various soil improvement such as improving clay soil, modifying the ground to have cushioning properties, and further improving soil in farmland.
The soil improvement material used differs depending on each application.

The soil quality improving material supply means 30 comprises a storage portion 31 and a feeder 32 constituting the soil quality improving material supply portion. The storage portion 31 has a cylindrical portion 31a at the lower portion and a rectangular box portion 31b at the upper portion. Has become. A lid 33 is provided on 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 designed to open outward, and in the fully open state, each lid piece 3
3a spreads obliquely upward by a stopper having an appropriate structure. The soil improving material is stored in the flexible container 34, the lid pieces 33a of the soil improving material supplying means 30 are opened, and the flexible container 34 is stored in the storage portion 31.
The soil improvement material can be easily supplied by installing so as to enter the rectangular box portion 31b. And
A cutter 35 having a blade edge protruding upward is provided at a position where the cylindrical portion 31a and the rectangular box portion 31b are connected to each other or at a position in the vicinity thereof. As a result, when the flexible container 34 is placed in the rectangular box portion 31b, the lower end portion of the container is cut by the cutter 35, and the soil improvement material in the flexible container 34 is stored in the storage portion 31, especially in the cylindrical portion thereof. It is supplied so as to flow into 31a. After the filling of the soil quality improving material is completed, the lid 33 is closed to prevent the soil quality improving material from scattering.

As is apparent from FIG. 7, since the cylindrical portion 31a and the feeder 32 are communicated with each other by the communication hole 36,
The soil improvement material is supplied into the feeder 32. Here, since the opening area of the communication hole 36 is smaller than the cross-sectional area of the cylindrical portion 31a, if the soil improvement material is fed into the feeder 32 only by its own weight, a bridge phenomenon or the like occurs and the soil improvement material is generated. May not be sent smoothly. In consideration of this point, the rotating rod 37 is arranged in a cross shape in the vicinity of the bottom surface of the cylindrical portion 31a, and the rotating rod 37 is attached to the cylindrical portion 31a.
It is configured to be connected to a rotary shaft 39 that is rotationally driven by a hydraulic motor 38 provided below a. This rotating rod 37
By the rotation of, the soil improvement material in the storage portion 31 is agitated and is smoothly and reliably fed to the feeder 32.

The feeder 32 has a casing 40, and a soil quality improving material supply port 41 is formed at the lower end of the casing 40. From this feeder 32, the soil quality improving material supply port 41 is formed.
A soil improvement agent is added by a predetermined amount to the earth and sand conveyed by the conveyor belt 11 via the. Moreover, the supply amount of the soil improvement material from the feeder 32 can be adjusted. That is, as shown in FIGS. 8 and 9, the wall surfaces near the lower end of the casing 40 of the feeder 32 where the soil improvement material supply port 41 is opened are arc-shaped wall surfaces 40a, 40a facing each other. Arc wall surface 40
A rotor 42 for fixed amount supply is provided at a portion between a and 40a. In the rotor 42, the partition wall 44 is formed at a predetermined angle (every 90 ° in the case shown) on the rotating shaft 43 provided in a state of penetrating the lower end portion of the casing 40 in the horizontal direction, The constant quantity supply container portion 45 having a substantially V-shaped cross section is formed between the adjacent partition walls. And the width dimension of the soil improvement material supply port 41 is equal to the interval between the adjacent partition walls 44, 44,
It is narrower than that, and the arcuate wall surface portion 40a has an arcuate surface of at least 90 ° or more.

When the rotary shaft 43 is rotated, the rotor 4
The tip ends of the respective partition walls 44 constituting the four fixed-quantity supply container portions 45 in 2 are in sliding contact with each other along the arc-shaped wall surface portion 40a. Therefore, the arc-shaped wall surface portion 40 a functions as a scraping wall of each fixed quantity supply container portion 45, and the rotary shaft 43 is 1
Every / 4 rotation, the rotor 42 is displaced from the state of FIG. 8 to the state of FIG. 9, and the soil improvement material in an amount corresponding to the volume of one fixed amount supply container part 45 is supplied onto the conveyor belt 11. It Therefore, when the rotation speed of the rotary shaft 43 is changed, the amount of soil improvement material supplied from the feeder 32 is controlled. In order to finely control the rotation speed of the rotation shaft 43 of the rotor 42, an electric motor 46 is attached to the outer surface of the casing 40, and a transmission belt or the like is provided between the electric motor 46 and the rotation shaft 43. Power transmission means 47 is interposed. Also, by replacing the rotor 42,
The supply amount of soil improvement material can be changed.

The amount of the soil conditioner supplied is changed according to the amount of earth and sand conveyed by the conveyor belt 11. The amount of earth and sand conveyed by the conveyor belt 11 is adjusted by the gate 22 and the leveling roller 24 provided in the earth and sand hopper 20 so as to have a substantially constant volume. However, the amount of earth and sand conveyed is completely constant. Cannot be transformed. Therefore, the conveyor belt 11
A sediment supply amount measuring means 50 is provided to detect the amount of sediment transported by the sediment supply amount measuring means 5.
0 is specifically designed to detect the weight of the transported earth and sand. For this reason, the earth and sand supply amount measuring means 50 is shown in FIG.
And the configuration shown in FIG.

In these figures, 51 and 51 are fixedly supported by the conveyor frame 12, and the conveyor belt 1
A pair of fixed rollers that come into contact with the back surface of the first roller 1 and roll by the feeding thereof.
The position between them is the section for measuring the amount of sediment supply. The fixed rollers 51, 51 before and after which constitute this earth and sand supply amount measurement section
A weight measuring roller 52 is attached so as to come into contact with the back surface of the conveyor belt 11 at an approximately intermediate position therebetween. Here, as described above, the conveyor belt 11 is
In other words, the weight measuring roller 52 bends 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 conveyor belt 11.

The weight measuring roller 52 is connected to a swing plate 54 which is swingably supported by a bearing member 53 provided on the conveyor frame 12. Swing plate 54
A load sensor 55 including a load cell or the like that constitutes weight measuring means is connected to the other end of the load sensor 55. Therefore, when a predetermined amount of earth and sand is accumulated on the conveyor belt 11 and the earth and sand accumulated on the conveyor belt 11 are conveyed to the earth and sand supply amount measurement section between the fixed rollers 51, 51, The belt 11 bends so as to sink. As a result, the weight measuring roller 52 is pushed in the arrow direction D in FIG.
Since the swing plate 54 to which the weight measuring roller 52 is connected swings and displaces in the direction of arrow U in the figure, the load on the load sensor 55 increases, and the transport belt 11 transports it based on this detection signal. It is possible to measure the amount of sediment.

As described above, the earth and sand and the soil improving material are conveyed by the conveyor belt 11 constituting the carry-in conveyor 10. The end of the carry-in conveyor 10 is connected to the processing tank 60 constituting the processing mechanism section 4. Has been done. The processing bath 60 is configured by opening the upper surface of the bath main body 60a over a predetermined range, and fixing the lid 60b to the opening in a detachable manner with bolts or the like. The tank body 60a is the body frame 2
Is fixedly installed on the upper surface of the lid 60b, and the machine room 6 located above the lid 60b is not in contact with the lid 60b. As a result, the lid 60b can be separated from the bath main body 60a with the processing bath 60 still installed in the main body frame 2.

The treatment tank 60 is for stirring and mixing the earth and sand and the soil conditioner, and the earth and sand and the soil conditioner are supplied to the treatment tank 60 from above by the carry-in conveyor 10. For this reason, the carry-in conveyor 10 needs to be located at a considerably high place. If the carry-in conveyor 10 is provided horizontally and the earth and sand hopper 20 is installed on it, the earth and sand input portion will be at an extremely high position. It is for this reason that the carry-in conveyor 10 is fixed to the support 7 extending from the main body frame 2 and is made to extend obliquely upward from the support 7, whereby the carry-in conveyor 10 is provided on the most upstream side. The located earth and sand hopper 20 can be arranged at a low position, which facilitates the introduction of earth and sand.

12 to 15 show the internal structure of the processing tank 60 constituting the processing mechanism section 4. The processing tank 60 is shown in FIG.
As is clear from the above, the main frame 2 is composed of a rectangular container arranged in the longitudinal direction, that is, in a substantially horizontal direction, and its side portion can be opened and closed by the opening / closing door 61. In addition, an introducing cylinder 62 that constitutes an introducing part is connected to the upper part of the front side of the processing tank 60, and an ejecting cylinder 63 that forms the discharging part is connected to the lower part of the rear side. 13 to 1
As shown in FIG. 5, two paddle mixers 64 are provided in parallel in the processing tank 60. The paddle mixer 64 is
A plurality of paddles 66, each having a rotating shaft 65 and having intermittently provided blades as a stirring / transferring member, are arranged at a predetermined angle with respect to the central axis of the rotating shaft 65. It is set up. Here, the paddle 66 is the rotary shaft 6
5, a paddle body 66b is attached to a support rod 66a fixedly attached to the member 5 so as to be fixed by a bolt 66c. As a result, when the paddle body 66b is worn,
You can easily replace it.

When the rotary shaft 65 is rotated, the paddle 66 is rotationally driven to agitate the inside of the treatment tank 60, and the earth and sand introduced into the treatment tank 60 and the soil improving material are agitated and uniformly mixed. , And is transferred toward the discharge cylinder 63 side. Here, in the present embodiment, two paddle mixers 64 are provided, but the number of the paddle mixers 64 is determined by the relationship between the height and width of the processing tank 60.
The number is not limited to two. When the height of the processing tank 60 is increased, a large paddle having a large turning radius can be attached. Therefore, the number of the paddle mixers 64 can be small, but the height of the processing tank 60 can be reduced and the width of the processing tank 60 can be increased. In that case, the radius of gyration of the paddle becomes smaller, so the number of paddle mixers is increased. Therefore, in order to have a predetermined stirring efficiency, the width dimension of the main body frame 2
The size of the processing tank 60 and the number of paddle mixers 64 may be set in relation to the height of the entire vehicle. However,
The number of paddle mixers 64 is an even number, and the adjacent paddle mixers 64, 64 rotate in mutually opposite directions in order to smoothly and efficiently mix, stir and transfer the soil and the soil conditioner in the treatment tank 60. I have to do it.

Both ends of the rotary shaft 65 of each paddle mixer 64 are rotatably supported by bearings 67, 67, and the tip end of the rotary shaft 65 is at the front end of the processing tank 60 as shown in FIG. It extends into the housing of the drive part 68 provided. A transmission gear 69 is connected to the tip of each rotary shaft 65, and both transmission gears 69, 69 mesh with each other. A drive gear 71 connected to the output shaft of the hydraulic motor 70 meshes with one of the transmission gears.
When 0 is rotationally driven, both rotary shafts 65, 65 provided with paddles 66 are simultaneously rotationally driven in mutually opposite directions. Further, a guide plate 72 is attached to the bottom of the treatment tank 60, and the guide plate 72 prevents sediment and soil improvement material from staying at the corners of the lower end of the treatment tank 60. There is. However, the portion of the guide plate 72 corresponding to the discharge cylinder 63 is open.

Here, between the introduction cylinder 62 and the discharge cylinder 63 of the processing tank 60, the part of the rotary shaft 65 of the paddle mixer 64 to which the paddle 66 is attached is arranged over the entire length thereof. ing. Therefore, the rotary shaft 65
Both ends of the bearing 67 are supported by bearings 67, and the mounting portions of these bearings 67 are on the front side of the introducing cylinder 62 and on the rear side of the discharging cylinder 63. As a result, the earth and sand and the soil conditioner supplied from the introducing cylinder 63 are smoothly and surely stirred and mixed, and transferred to the discharging cylinder 63 at a constant speed without stagnation.

In the treatment tank 60, the soil and the soil conditioner are uniformly stirred and mixed by the action of the paddle mixer 64, and when reaching the discharge cylinder 63, the improved soil in which the soil and the soil conditioner are uniformly mixed is obtained. Manufactured. Then, the improved soil is discharged from the discharge cylinder 63 so as to drop by the action of its own weight into the discharge portion 5 including the discharge conveyor 73. Here, the discharge cylinder 6
Since 3 is located below the processing tank 60, the carry-out conveyor 73 is located below this discharge cylinder 63. If the carry-out conveyor 73 is extended straight as it is, the improved soil cannot be deposited high. Therefore, the carry-out conveyor 73 is extended obliquely upward so that the improved soil is accumulated from a predetermined height position.

When lime is used as the soil conditioner,
The improved soil produced by uniformly mixing the lime and the earth and sand has an aggregate structure. When the improved soil is conveyed obliquely upward by the carry-out conveyor 73, its inclination angle is restricted in order to smoothly convey the improved soil. Therefore, in order to deposit the improved soil from a high place, the length of the carry-out conveyor 73 becomes long to some extent. Therefore, by making the front end side of the carry-out conveyor 73 bendable by a predetermined length, the overall length of the soil improvement machine can be shortened. Moreover, the folding position of the carry-out conveyor 73 is
The height of the entire soil improvement machine is set to the highest position, that is, the position lower than the upper end position of the soil improvement material supply means 30. Therefore, the carry-out conveyor 73 is formed as a fixed portion 73a on the side connected to the processing tank 60, and a tip end of the fixed portion 73a is composed of a bent portion 73b rotatable by a link mechanism 74 in the arrow direction of FIG. . And the bent portion 73b is
By a driving means such as a hydraulic cylinder, it is possible to displace between an operating state shown by a solid line in the figure and a bent state shown by a virtual line.

FIG. 16 shows a state in which the self-propelled soil improvement machine configured as described above is operated to perform soil improvement. The figure shows a small yard in which soil for soil improvement is accumulated. First, the soil improvement is started by feeding the soil into the soil improvement machine sediment hopper 20. For this,
Although a means for charging earth and sand is required, a hydraulic excavator PS can be used as the means for charging earth and sand. Therefore, the soil improvement machine and the hydraulic excavator PS are carried into the yard to improve the soil quality of the accumulated soil.

In order to improve the soil quality in the yard, the soil accumulated with a predetermined spread is scooped up in order from the end by the bucket B of the hydraulic excavator PS and put into the soil hopper 20 of the soil improvement machine. While the earth and sand is conveyed from the earth and sand hopper 20 by the carry-in conveyor 10, the soil improver is supplied from the feeder 32 of the soil improver supply means 30 and is supplied onto the surface of the earth and sand. Then, the mixture of the earth and sand and the soil-improving material is fed into the processing tank 60 from the end of the carry-in conveyor 10 through the introducing cylinder 62. The paddle mixer 64 provided in the treatment tank 60 moves to the position of the discharge cylinder 63 while stirring and mixing the soil and the soil improving material, during which the soil and the soil improving material are mixed in the treatment tank 60. The mixed soil is uniformly mixed to produce the improved soil in the aggregated state. The improved soil is deposited at a predetermined position from the discharging cylinder 63 via the discharging conveyor 73.

When the earth and sand is taken into the soil improvement machine from the accumulation portion, a space is generated at that portion. If the improved soil produced in sequence is deposited in this space, most of the space in the yard is substantially used as the sedimentation site and the improved soil deposition site. As a result, the yard space can be effectively utilized. It is for this reason that the soil improvement machine can be self-propelled by the lower traveling body 1, and the lower traveling body 1 is operated in accordance with the progress of the work and the receding place of the sediment, and the soil improving machine is operated. Try to move.

When the improved soil is deposited on the discharge conveyor 71 at a predetermined position, it may be directly deposited at the deposition location, but it may be desirable to classify it according to the particle size of the improved soil. . For this purpose, a sorting device 75 is provided as shown in FIG. The sorting device 75 is configured as a portable type, and includes a sieve 76 and a transfer conveyor 77. The sieve 76 is, for example, 13 mm or less, 20 m
It is desirable that the mesh size is such that m or less and 25 mm or less such that the particle size is not more than a predetermined particle size, and that the vibrating screen is used. Then, the improved soil, which has passed through the sieve 76 and has a uniform particle size, is deposited on a predetermined deposition location by the transfer conveyor 77. The improved soil having a large particle size that did not pass through the sieve 76 has the same quality in that it has been solidified. Therefore, the improved soil having a large particle size is either treated as it is or after being subjected to a uniform particle size treatment. Then, it will be used as a material for backfilling.

In order to improve the quality of the improved soil, first, as a pretreatment, when the earth and sand contain rocks, brick pieces, concrete pieces, etc., as well as metals and other foreign matters, these foreign matters are separated. Remove. The sieving means 21 attached to the earth and sand hopper 20 is for sieving such foreign matters. Due to the action of the sieving means 21, only the earth and sand is taken into the earth and sand hopper 20, and the foreign matter that has not passed through the sieving means 21 is smoothly discharged to the outside along the inclination of the earth and sand. It does not hinder the input work.

Next, in order to set the degree of solidification of the improved soil within a predetermined range, the mixing ratio of the earth and sand and the soil improvement material is adjusted accurately. Here, the degree of solidification due to the addition of the soil conditioner varies depending on the nature of the soil and the like. Therefore, the desired mixing ratio is determined in advance by experiments or the like. The mixing ratio of the earth and sand and the soil improvement agent may be set as a volume ratio or a weight ratio. It is desirable to set the mixing ratio as the weight ratio in consideration of the relationship with the density and viscosity of the earth and sand.

The means 50 for measuring the amount of sediment supply is the sediment hopper 20.
This is to measure the weight of earth and sand sent out from. This earth and sand supply amount measuring means 50 detects the load acting on the weight measuring roller 52 by the load sensor 55,
The weight of the earth and sand transported along the carry-in conveyor 10 is directly detected. Then, the soil quality improving material is supplied from the soil quality improving material supply means 30 at a position downstream of the earth and sand supply amount measuring means 50 in the carry-in conveyor 10, and the amount of the soil quality improving material supplied is the rotor 42 constituting the feeder 32. It can be adjusted by the rotation speed of. Therefore, the electric motor 46 is controlled based on the signal from the load sensor 55, and the rotor 4
Adjust the rotation speed of 2 to change the amount of soil improvement agent supplied. As a result, the mixing ratio of the earth and sand and the soil improvement agent becomes constant even if the amount of earth and sand conveyed by the carry-in conveyor 10 changes.

The quality of the improved soil largely depends on the degree of mixing of the soil and the soil improving material. Since the paddle mixer 64 built in the processing tank 60 is used, the earth and sand and the soil conditioner are uniformly stirred and mixed. Two paddle mixers 64 are provided in the processing tank 60, and as shown by the arrows in FIG. 15, they rotate in mutually opposite directions. Therefore, inside the processing tank 60, the paddle mixer 64
Due to the shearing and stirring action of the paddle 66 attached to the rotating shaft 65 of the
As a result of thoroughly stirring the entire inside of the tank, the sand and soil and the soil conditioner are mixed uniformly. Further, since the paddle 66 is oriented obliquely with respect to the axis of the rotary shaft 65, the mixture of the earth and sand and the soil conditioner is stirred horizontally at a speed according to the angle and is generally horizontal toward the discharge cylinder 63. Is transferred in the direction. Moreover, since there are no obstacles such as bearings between the introducing cylinder 62 and the discharging cylinder 63 in the processing tank 60, they are transferred at a constant speed without stagnation. As a result, poor sediment is converted into good quality improved soil. In addition, since the inside of the processing tank 60 is a space that is substantially closed except for the introduction cylinder 62 and the discharge cylinder 63, the soil conditioner and sand are scattered around while stirring by the paddle 66. There is no danger of

If earth and sand adhere to the paddle 66 and stick to it, the efficiency of shearing and stirring will decrease. The two paddle mixers 64 are provided so that one paddle 66 extends to a position close to the partner rotary shaft 65.
The paddles 66 are substantially overlapped with each other when viewed in the axial direction of the rotary shaft 65. Therefore, even if the soil adheres to the surface of the paddle 66 during operation of the paddle mixer 64, the relative rotation with the mating paddle 66 will scrape off the adhered soil, resulting in the self-cleaning action and the paddle. The stirring efficiency of 66 does not decrease.

By sharing this soil improvement machine with a plurality of yards, a relatively small amount of earth and sand is subjected to soil improvement treatment in one yard, and then this soil improvement machine is transported to another yard, and the same soil improvement machine is used in this yard. Perform soil improvement treatment. For this purpose, as shown in FIG. 17, the trailer TT
Will be transported by being placed on the cargo carrier TR. Therefore,
When soil is collected in a certain yard until it is almost filled, the soil improvement machine is carried into the yard to perform soil improvement treatment. The improved soil produced in this way is deposited in the yard, carried out by a dump truck or the like as necessary, and used for backfilling or the like.

When the soil improvement machine is carried into a predetermined yard, the soil improvement machine is self-propelled and placed at the most convenient position for soil improvement. The soil improvement machine is arranged at a predetermined position, and various conditions of its operation such as a mixing ratio of the soil and the soil improvement material, a rotation speed of the paddle mixer 64, and a transportation speed of the soil and the soil improvement material by the carry-in conveyor 10 are set. Once set, the machine will start operating. Then, after the soil improvement machine starts to operate, the operation is basically unmanned. When the soil improvement machine operates, the hydraulic excavator PS is operated to load the soil to be improved into the sediment hopper 20 to start the soil improvement process. Since the operation of the soil improvement machine will be automatically controlled, the operator only has to operate the hydraulic excavator PS. Therefore, FIGS. 18 and 19 show a schematic configuration of the operation control mechanism of the soil improvement machine.

Thus, in FIG. 18, reference numeral 78 is an operation panel,
79 is a monitor integrally provided on the operation panel 78,
The operation panel 78 is arranged on the main body frame 2 at a position where an operator can operate on the main body frame 2, for example, at a position close to the machine room cover 6 in FIG.
In addition to the monitor 79, the operation panel 78 is provided with a predetermined number of operation members including operation buttons, knobs, switches, and the like. By appropriately operating these operation members, various operations relating to the operation of each part of the machine are performed. You can set conditions.

A controller 80 having the structure shown in FIG. 19 is built in the operation panel 78 as a control means.
The controller 80 takes in signals from the sensors and detectors that make up the machine, and outputs control signals to each section. 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 predetermined calculation and comparison based on the input data. And a data processing unit 83 for performing signal processing of the above, and a control signal for controlling controlled means such as a hydraulic actuator or a control valve is output based on the signal processed by the data processing unit 83.
As this control signal, a signal for controlling the operation of each controlled means is output through the data output unit 85 via the data conversion unit 84 that performs data conversion such as D / A conversion.

Various data at the time of executing the soil improvement treatment work are taken into the internal memory 86, and the various data stored in these memories 86 are transferred via the I / O processing unit 87. For example, by downloading the data to the personal computer 88, the data required by the personal computer 88 is processed according to a predetermined algorithm, and then the data is stored in the external storage device 89 connected to the personal computer 88. As described above, the personal computer 88 stores the data for storing and managing various data relating to the soil improvement treatment. Also, I
The IC card driver 90 is connected to the I / O processing unit 87, and the personal computer 8
It is not necessary to connect 8 directly to the controller 80.
That is, an IC card as an external storage means is inserted into the IC card driver 90, and the above-mentioned various data are stored in the IC.
The data recorded on the IC card can be taken into the personal computer 88 after being recorded on the card once. Thus, for example, the history of soil improvement processing can be managed by fetching data each time the worker finishes the work for one day.

Here, the data processing unit 83 is designed to calculate at least the amount of soil improvement material consumed, and also the amount of earth and sand processed by the processing mechanism unit 4, that is, the amount of processed soil. become. Further, it is detected whether or not the earth and sand and the soil improving material are accurately conveyed by the carry-in conveyor 10, and whether the earth and sand and the soil improving material are smoothly mixed in the treatment tank 60. When a trouble such as a malfunction occurs in the operation, it also has a function of investigating the cause. Therefore, as shown in FIG. 20, the data processing unit 83 has at least the soil-improving-material consumption calculating unit 83a and the treated soil amount calculating unit 83b.
And a failure diagnosis unit 83c are provided.

First, the amount of soil improvement material consumed can be measured by the number of revolutions of the rotor 42. Therefore, the rotational speed of the rotary shaft 43 of the rotor 42 or the electric motor 46 is detected by the rotor rotational speed detection means 91, and the signal from the rotor rotational speed detection means 91 is taken into the soil quality improvement material consumption amount calculation section 83a, The amount of soil improvement material consumed per unit time and its cumulative amount are obtained. The amount of earth and sand supply can be measured by a load sensor 55 connected to the weight measuring roller 52 in the earth and sand supply amount measuring means 50. However, when the speed of the conveyor belt 11 in the carry-in conveyor 10 is variable, the amount of earth and sand supplied is determined based on the speed of the conveyor belt 11 and the load of the load sensor 55. Then, the speed of the conveyor belt 11 can be detected by the number of rotations of the driving roller 13 or the like. Therefore, the treated soil volume calculation unit 8
The signal from the load sensor 55 and the signal from the belt conveying speed detecting means 92 for detecting the rotation speed of the driving roller 13 for feeding the conveying belt 11 are taken into 3b, and the amount of treated soil per unit time and The calculation with the accumulated amount is performed.

Further, the object to be treated is earth and sand, and since the earth and sand of various properties and states are subjected to soil improvement treatment, and the earth and sand may contain foreign matters, There may be some trouble in doing. In particular, trouble may occur when the earth and sand are conveyed on the carry-in conveyor 10, or when the mixture of the earth and sand and the soil conditioner is conveyed in the treatment tank 60. For example, jamming may occur at the vicinity of the gate 22 of the earth and sand hopper 20 in the carry-in conveyor 10 or at the time of discharging from the discharge cylinder 63 in the processing tank 60, or the paddle mixer 64 may be clogged by foreign matter. There is a possibility of locking. These troubles and abnormalities appear as variations in the transport speed and load of the transport belt 11, variations in the rotation speed and load of the paddle mixer 64, and the like. Therefore, a signal from the belt conveying speed detecting means 92 for detecting the conveying speed of the conveying belt 11, a load detector 93 is provided in the hydraulic motor 15, and a signal from the load detector 93 and a hydraulic pressure for driving the paddle mixer 64 are provided. The number of rotations of the motor 70, a signal from the load detection means 94, and the like are used for the failure diagnosis unit 83c.
The failure diagnosis unit 83c is loaded into the computer, and the presence or absence of a failure or abnormality is determined based on an algorithm preset in the failure diagnosis unit 83c, and the failure location is specified.

Then, the soil quality improving material consumption amount calculation unit 83a provides data regarding the soil quality improving material consumption amount, the treated soil amount operation unit 83b provides data regarding the treated soil amount, and the failure diagnosis unit 83c indicates a failure. Data such as presence / absence and its properties are taken into the memory 86, and various data from the memory 86 can be displayed on the monitor 79 via the display control unit 95. Therefore, a part of the display contents of the monitor 79 is shown in FIGS. Here, the monitor 79 is configured to include a touch panel type display content switching means.

FIG. 21 shows a basic display form. The contents of the display are basically the amount of treated soil and the amount of soil improvement material consumed per unit time at present, and their accumulated values. Is. In addition to these data,
It is desirable to display the current processing conditions, for example, the mixing ratio of the soil conditioner to the sand, the transport speed of the carry-in conveyor 10, the feed speed of the paddle mixer 64 in the processing tank 60, and the like. Furthermore, a message display area is also provided. Furthermore, the storage part 31 of the soil improvement material supply device 30
It is desirable to provide a display area for the remaining amount of the soil improvement material in. Regarding the remaining amount of the soil quality improving material, for example, a level sensor 95 serving as a reference is installed at a certain height position in the storage unit 31, and a signal from the reference level sensor 95 is used to calculate the soil quality improving material consumption amount calculation unit 83a. To take in.
Then, from the time when the storage amount of the soil improvement material in the storage portion 31 is reduced to the height position of the reference level sensor 95, the remaining amount is reduced based on the detection signal from the rotor rotation speed detection means 91. Can be configured with an indicator. As a result, by visually observing the monitor 79, it becomes possible to easily and surely grasp the remaining amount of the soil improvement material.

22 and 23 show changes in the treated soil amount and the soil quality improving material consumption amount with time.
In FIG. 22, a graph is displayed, and in FIG. 23, it is displayed numerically. These are displayed by exchanging with the basic display form of FIG. 21 by touching a predetermined position on the monitor 79.

Therefore, the operator who carries out the soil improvement treatment always performs some work at a position distant from the soil improvement machine, for example, operates the hydraulic excavator PS to perform the work of loading the sand into the sand hopper 20. By checking the monitor 79 at any time, the soil improvement material supply device 30
It is possible to accurately recognize the timing of replenishment of soil improvement materials. Therefore, while the soil improvement treatment is being performed, the soil improvement material in the soil improvement material supply device 30 has been consumed up, and the operation of the device must be stopped without preparation for replenishment of the soil improvement material. That situation does not occur. In addition, when replenishing the soil improvement material to the soil improvement material supply device 30, by supplying a large amount of earth and sand into the earth and sand hopper 20 in advance, even if the earth and sand supply by the hydraulic excavator PS is interrupted, the soil quality is improved. The improvement treatment can be carried out continuously. This improves the operation efficiency of the soil improvement machine.

Further, the monitor 79 is provided with a message display area, and the failure diagnosis section 83c can display information relating to the failure in this message display area. With respect to this failure, it is possible to display, for example, "transport conveyor jamming", "processing tank clogging", "paddle mixer stop", and the like. If an alarm is generated at the same time as this display, even when the operator is operating the hydraulic excavator PS, it is possible to recognize that some abnormality has occurred in the machine by listening to this alarm. By checking the monitor 79, it is possible to clearly recognize what kind of situation has occurred. Therefore, it is possible to smoothly and promptly take measures for returning to the normal state.

After the soil improvement machine has started to operate, it is necessary to perform some operation or work on the soil improvement machine when the soil improvement material is replenished and when the soil improvement machine is operated. Only when trouble occurs. Therefore, by checking the monitor 79 at any time,
The fact that the timing of replenishing the soil improvement material can be accurately determined, and that the occurrence and the cause of the trouble can be quickly and reliably recognized means that the operation of the hydraulic excavator PS can be performed during the operation of loading the soil into the sand hopper 20. If the operation state of the soil improvement machine is confirmed by the frequency monitor 79 to some extent, one worker can perform all of this soil improvement processing. Moreover, since the earth and sand hopper 20 has a certain volume, there is sufficient time to check the monitor 79 by getting off the hydraulic excavator PS immediately after the earth and sand are thrown in. Therefore, check the monitor 79. There is no risk of interruption during work.

Further, in order to enhance the reliability of the soil improvement treatment, it is preferable to save the data in which the treatment procedure and the like are recorded so that the performance record of the soil improvement treatment can be analyzed at a later date. In particular, the total amount of treated soil,
It is necessary to save the data on the mixing ratio of sediment and soil improvement material. Moreover, at least the mixing ratio must be time-series data because of continuous processing. The memory 86 attached to the controller 80 records at least data regarding the amount of treated soil and the amount of soil improvement material consumed, and also records the occurrence and cause of troubles. Therefore, this record is read out. As a result, virtually all data relating to soil improvement treatment can be obtained. Therefore, when the work is completed, the personal computer 88 is connected via the I / O processing unit 87 of the controller 80, or the I / O processing unit 87 is connected.
By inserting the IC card into the IC card driver 90 connected to and recording various data in this IC card, it becomes convenient to store, analyze and verify various data, and to improve the quality of the improved soil. It will be a very convenient material for verification.

The processing mechanism is not limited to the above-mentioned mixing system, but it is also possible to use, for example, the crushing system processing mechanism shown in FIG. This processing mechanism includes a rotary cutter 102 inside a housing 101 opening at an end of a carry-in conveyor 100 that constitutes a supply unit.
And a plurality of (for example, three) rotary striking members 103 are provided at different positions in the vertical direction and the front-back direction, and the discharge conveyor 1 is provided at the bottom of the housing 101.
04 is provided.

Although not shown, the above-mentioned carry-in conveyor 100 is provided with a sediment hopper, a sediment supply amount measuring means, and a soil improvement material hopper from the upstream side in the conveying direction.
While the earth and sand are being conveyed, the conveyance amount is detected and the soil improvement material in an amount commensurate with the conveyance amount is supplied from the soil improvement material hopper. There is no particular difference in this configuration from the supply unit 3 shown in FIG.

The earth and sand and the soil improvement material are carried in the conveyor 100.
When it is transported to the end position of the
After being sheared at 2, it falls by its own weight. The rotary striking member 103 provided in the middle of this drop has a large number of striking projections 103b provided on the outer peripheral surface of the rotary shaft 103a.
03a is rotated in the direction of the arrow shown in the figure. As a result, the earth and sand and the soil conditioner that fall from the carry-in conveyor 100 by their own weight are crushed by being hit by the impacting protrusions 103b during the fall, and the earth and sand and the soil conditioner are mixed. Here, in this disintegration method, unlike the above-mentioned stirring and mixing of the soil and the soil improving agent by the paddle mixer 64 in the treatment tank 60, the soil improving agent is finely crushed by hitting and then the soil improving agent is mixed. is there.

[0070]

As described above, according to the present invention, the soil improvement machine self-propelled, and the remaining amount of the soil improvement agent in the consumption and at least the soil improvement agent supply the means of processing the amount of soil and soil improvement agent Since it was configured to display on the monitor,
By properly checking the monitor, the operator can bring an effect such that the replenishment timing of the soil quality improving material in the soil quality improving material supply device can be accurately determined.

[Brief description of drawings]

FIG. 1 is a front view of a self-propelled soil improvement machine showing an 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 configuration explanatory view of a carry-in conveyor in the soil improvement machine of FIG. 1.

5 is a sectional view of the earth and sand hopper of the soil improvement machine of FIG.

FIG. 6 is a cross-sectional view of a soil improvement material supply means of the soil improvement machine of FIG.

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

8 is an operation explanatory view of a constant amount supply mechanism in the soil improvement material supply means of FIG.

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

FIG. 10 is an explanatory diagram of a structure of earth and sand supply amount measuring means installed on the carry-in conveyor of FIG. 4;

11 is an explanatory diagram of the principle of measuring the amount of earth and sand supply using the means for measuring the amount of earth and sand supply of FIG.

FIG. 12 is an external view of a processing tank in which the paddle mixer is omitted in the soil improvement machine of FIG.

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

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

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

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

FIG. 17 is an external view showing a state where the soil improvement machine according to the embodiment of the present invention is transported by a trailer.

FIG. 18 is a configuration explanatory view of a control panel installed in the soil improvement machine of FIG. 1.

FIG. 19 is a block diagram of a control device of the soil improvement machine in the embodiment of the present invention.

20 is a circuit diagram of a data processing unit that constitutes the control device of FIG.

21 is an explanatory diagram showing an example of display contents of a monitor of the control panel shown in FIG.

22 is an explanatory diagram showing another example of the display contents of the monitor of the control panel shown in FIG.

23 is an explanatory diagram showing still another example of the display contents of the monitor of the control panel shown in FIG.

FIG. 24 is a configuration explanatory view of a crushing mechanism as another example of the processing mechanism in the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Undercarriage 2 Main frame 3 Supply part 4 Processing mechanism part 5 Discharge part 10 Carry-in conveyor 20 Sediment hopper 12 Sieving means 30 Soil conditioner supplying means 32 Feeder 37 Rotating rod 42 Rotor 45 Electric motor 50 Sediment supply measuring means 52 Roller for weight measurement 55 Load sensor 60 Processing tank 64 Paddle mixer 65 Rotating shaft 66 Paddle 70 Hydraulic motor 78 Control panel 79 Monitor 80 Controller 83 Data processing unit 83a Soil quality improvement material consumption calculation unit 83b Processing soil amount calculation unit 83c Fault diagnosis unit 86 Memory 87 I / O
Processing unit 90 IC card driver 91 Rotor rotation speed detection means 92 Belt conveyance speed detection means 93 Load detector 94 Rotation speed / load detection means 102 Rotation cutter 103 Rotational striker

Front page continuation (72) Inventor Fujio Sato No. 650 Kintatemachi, Tsuchiura, Ibaraki Hitachi Construction Machinery Co., Ltd. Tsuchiura factory (56) References JP-A-9-117799 (JP, A) JP-A-7-11667 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) E02F 7/00

Claims (4)

(57) [Claims] 1. A main body frame, a lower traveling body provided on the main body frame, a mixing means provided on the main body frame for mixing earth and sand and a soil improvement material, and provided on the main body frame for charging. A earth and sand hopper that receives earth and sand, a carry-in conveyor that is provided below the earth and sand hopper, and that carries in the input earth and sand received by the earth and sand hopper to the mixing means, and a carry-in conveyor that is provided to the mixing means. A soil supply amount measuring means for detecting the amount of sediment supplied to the soil, a soil improving material supplying means provided on the body frame, and a soil improving method for detecting the amount of soil improving material supplied from the soil improving material supplying means. The material supply amount detecting means, the operation part for setting various conditions regarding the operation of each device,
Outputs control signals to each device based on the signal from the work unit.
And the measurement from the sediment supply amount measuring means.
Constant signal and detection signal from the soil quality improving material supply amount detecting means
The amount of treated soil calculated based on
Control means for outputting a data signal regarding
Of the amount of treated soil and soil improvement material output from the control means
Has a monitor that displays data related to consumption and operation
The main unit so that it can be operated by a person.
A self-propelled soil improvement machine characterized by having an operation panel provided on the ram . 2. A main body frame, a lower traveling body provided on the main body frame, a mixing means provided on the main body frame for mixing earth and sand and a soil improvement agent, and provided on the main body frame for charging. A sediment hopper that receives sediment, and a carry-in conveyor that is provided below the sediment hopper and that carries the input sediment received by the sediment hopper into the mixing means, and the carry-in conveyor that is provided with the mixing means. A soil supply amount measuring means for detecting the amount of sediment supplied to the soil, a soil improving material supplying means provided on the body frame, and a soil improving method for detecting the amount of soil improving material supplied from the soil improving material supplying means. The material supply amount detecting means, the operation part for setting various conditions regarding the operation of each device,
Outputs control signals to each device based on the signal from the work unit.
And the measurement from the sediment supply amount measuring means.
Constant signal and detection signal from the soil quality improving material supply amount detecting means
The amount of treated soil calculated based on and the remaining amount of soil improvement material
Control means for performing a process of outputting a data signal relating to
Amount of treated soil output from this control means and residual soil improvement material
The operator has a monitor that displays data related to quantity and
The main body frame should be placed so that it can be operated.
A self-propelled soil improvement machine, which is equipped with an operation panel installed in the soil. 3. The soil improvement material consumption amount calculation means for calculating the consumption amount of the soil improvement material based on the signal from the soil improvement material supply amount detection means, and the soil supply amount measurement means. Based on the output signals from the treated soil amount calculating means for calculating the treated soil amount based on the measurement signal and the soil improving material consumption amount calculating means and the treated soil amount calculating means, the soil improving material consumption amount per unit time and The amount of treated soil, and a recording means for recording the cumulative value thereof, further, on the monitor, the cumulative value display of the consumption of soil improvement material and the amount of treated soil,
The self-propelled soil improvement machine according to claim 1, characterized in that the change with time is displayed simultaneously or in a switching manner. 4. The mixing means comprises a plurality of stirring / mixing mechanisms provided in a mixing container, and driving means for driving the stirring / mixing mechanisms to rotate. A means for detecting the rotational load is provided, and further, the control means is provided with a failure diagnostic means for evaluating the operating state of the stirring / mixing mechanism based on at least the rotational speed and the rotational load, and the monitor is provided with the failure. claim and displaying messages from the diagnostic unit 1-3 Neu
Self-propelled soil improvement machine according to item 1 .