JPH09291778A - Self-propelled batcher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability on a batcher plant to be bought in and installed on a piling site to reduce transportation cost, and make movement of the installation place at site easy to improve the conversion efficiency of driving energy. SOLUTION: In this mobile batcher, a batcher plant provided with a cement mixing device 20 in which cement and muddy water are mixed together at a fixed mix proportion so as to make cement milk and store it, and a muddy water procesing device 30 in which muddy water at drilling the ground is collected, the muddy water is regenerated by removing earth and sand over a fixed grain size, and this muddy water is stored, is loaded on the upper vehicle body. In addition to this, the batcher is provided with a lower running body 2 provided on the lower part of the upper vehicle body and having runnable crawels on the right and left, and a power unit 10 provided side by side the batcher plant on the upper vehicle body, and the poser of an engine is used in common for driving the cement mixing device 20 and the muddy water processing device 30 and for running by the lower running body 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called batcher plant, which is a cement compounding plant used as an auxiliary machine for a pile burying machine for burying piles in a hole after excavating the ground.

[0002]

2. Description of the Related Art At a foundation construction site or the like, a pile is buried in the ground and cement is injected into the pile in order to solidify the foundation of a building. Usually, when excavating a hole for burying this pile, the excavation rod having a bit attached to the tip is rotated while the mud for excavation is directed from the tip of the excavation rod toward the earth and sand. Is injected at high pressure. After the excavation of a hole having a predetermined depth is completed, a pile having a stretchable bag on the outer periphery of the tip is buried in the drilled hole, and cement milk is injected through the interior of the buried pile. Then, when cement milk is filled into the bag at the tip of the pile to form a bulb,
Pile burying is completed.

At such a basic construction site, cement is often used in large quantities and frequently in small units rather than being added all at once. Therefore, in such a site, since the efficiency becomes low when the cement is injected by the cement mixer truck, the number of cases where a cement mixing plant, a so-called batcher plant, is installed on the site is increasing. Many of these batcher plants are installed at fixed positions, and are proposed, for example, in Japanese Utility Model Publication No. 4-23990.

An example of the conventional configuration of such a fixed type batcher plant installed at such a fixed position is shown in FIGS. 5 and 6, which will be described below with reference to FIG. FIG. 5 shows a system configuration block diagram of the batcher plant.
The batcher plant includes a muddy water treatment device 30, a cement compounding device 20, and a pump unit 40, which will be described below in order.

The muddy water treatment device 30 includes a vacuum 32,
It includes a desander 33, a muddy water tank 36, and a pipe connecting these. The vacuum 32 sucks the muddy water used at the time of excavation from the inside of the excavation hole through the pipe 31 and collects the muddy water, and inputs the collected muddy water to the desander 33.
The used muddy water is generally called "shuri" (hereinafter, the used muddy water is called "shuri").
Is equipped with a pump for collecting this shear. The desander 33 removes large earth and sand with a predetermined grain size or more by applying the shear to a vibrating screener or the like, thereby regenerating muddy water for reuse. Descender 3
3 is provided with a drive motor (not shown) for the vibrating screen, a drive motor 34 for sending the regenerated muddy water to the outside, and the like. The regenerated muddy water is fed to the muddy water tank 36 via the pipe 35. The muddy water tank 36 stores this muddy water, and when necessary, a predetermined amount of muddy water is introduced into the mixer 24 via the valve 38. In addition to the muddy water tank 36, a fresh water tank 37 is also provided. Fresh water tank 37
Stores the fresh water mainly used for cleaning and cement blending of the plant, and supplies a predetermined amount of fresh water to the valve 39 when needed.
It is charged into the mixer 24 through.

The cement compounding device 20 comprises a cement silo 21, a mixer 24, and an agitator 28. The cement silo 21 stores cement and, when necessary, puts a predetermined amount of cement into the mixer 24. A drive motor 22 is provided in the cement silo 21, and the rotation of the drive motor 22 causes the cement to be introduced into the mixer 24 via the valve 23. The mixer 24 measures the added cement and the muddy water and the like injected from the muddy water tank 36 so as to have a predetermined mixing ratio, and mixes the mixed liquid (called cement milk). The mixer 24 includes a drive motor 25 for mixing.
And a weight scale 26 for measuring the cement, the muddy water, and the like. Then, the cement milk is put into the agitator 28 via the valve 27. The agitator 28 temporarily stores cement milk. Further, the agitator 28 is provided with a drive motor 29, and the cement milk is appropriately agitated by the drive motor 29 while being stored in the agitator 28.

The pump section 40 is provided with a high pressure pump 41 and a low pressure pump 42. When excavating a hole for burying piles, muddy water is introduced into the mixer 24 and the agitator 28. And this muddy water is the high pressure pump 41.
Is supplied to the tip portion of a rod for excavation (not shown), and is jetted at high pressure from this tip portion toward the earth and sand.
Further, when the pile is buried in the excavated hole, the cement milk stored in the agitator 28 is injected into the pile by a predetermined amount by the low pressure pump 42. In addition, this batcher plant is provided with an operation panel and a control device (not shown). The drive signals of the drive motors, the valves, and the pumps, the measurement signals of the weighing scale 26, and the like are connected to the control device. The control device performs a predetermined process based on the measurement signal of the weight scale 26 to drive each drive motor and each valve to control the mixing of cement milk and the discharge of the cement milk and the muddy water from the pump. Controlling the amount. Further, the operation panel is provided with a switch for manually operating each drive motor and each valve, a setting switch for setting the mixing ratio of cement milk, an indicator for monitoring the state of the batcher plant, and the like. .

FIG. 6 is an external view showing a state in which a conventional stationary batcher plant is installed. The cement silo 21 and the muddy water tank 36 are on the ground G. L. A mixer 24 is installed above the cement silo 21 and at an intermediate position between the cement silo 21 and the muddy water tank 36 and below the cement silo 21. Further, a high-pressure pump 41 is arranged beside the mixer 24 and below the muddy water tank 36, and a low-pressure pump 42 is arranged beside the mixer 24 and below the cement silo 21. At locations away from these devices, a de-sunder 33, a vacuum 32, and a generator 44 are respectively provided on the ground G.G. L. It is installed in. The generator 44 supplies drive power to each drive motor in the present batcher plant, and in the figure, two generators 44 are provided for downsizing. Further, a control device and an operation panel (not shown) are provided.

[0009]

However, when the above-mentioned conventional batcher plant is installed on the construction site, it is often difficult to carry it in all at once because the plant is large. In particular, since the carry-in route is narrow at an ordinary site, this batcher plant must be once divided into units, and then each unit must be brought in by a truck or the like. FIG. 7 shows an example in which each of these units is loaded on, for example, a 4-ton truck and conveyed. Due to the divisional loading, the number of trucks increases and the loading cost increases. Depending on the loading site, it is necessary to load on a 2 ton truck due to the restriction of a narrow loading path. In this case, the number of trucks is further increased and the loading cost is further increased. Also, each of these divided units is assembled on site after being carried in, but this requires work time and manpower for this assembly, which impairs work efficiency on site and increases assembly costs. There's a problem.

In addition, at the time of assembling on site, the installation position of the batcher plant is often restricted by the place where the assembling crane is installed.
For this reason, in terms of work efficiency in the batcher plant, it cannot be installed at the position where it should be originally installed, which may impair work efficiency. Furthermore, since the installation site of the batcher plant is temporarily set in a narrow site, it may be necessary to bury piles under this installation site as the construction process progresses. At this time, it is necessary to change the installation site to another place, and for this reason the batcher plant must be disassembled, moved, and reassembled, so the reassembly work cost increases and the work efficiency increases. There are also problems of decline. Moreover, as the pile burying machine moves within the site, the pipe connecting the pile burying machine and the batcher plant must be extended and laid on the ground at the site. This not only reduces the work efficiency, but also hinders the movement of other machines in the field.

Further, electric drive pumps are used as the high-pressure pump 41 and the low-pressure pump 42 for respectively pumping muddy water and cement milk to the pile burying machine. An inverter is used for driving the electric motor in order to control the feed amount by the pump with high accuracy. Due to this, the energy conversion efficiency is not good, and there is a problem that the equipment used becomes large, and there is a strong demand for improvement.

The present invention has been made by paying attention to the above-mentioned problems, and improves workability at the time of carrying in and installing on the site, improves carrying-in cost, and moves the installation place on the site. It is an object of the present invention to provide a self-propelled batcher that is easy to operate and has improved conversion efficiency of driving energy.

[0013]

[Means for Solving the Problems, Actions and Effects] In order to achieve the above object, the invention according to claim 1 is a cement for producing and storing cement milk in which cement and mud are mixed at a predetermined mixing ratio. In the hole where the mixing device 20 and the muddy water at the time of excavation are collected, the muddy water is removed by removing the sediment having a particle size of a predetermined size or more, and the muddy water is stored In a batcher plant that feeds muddy water for excavation and cement milk for burying piles to a pile burying machine for burying piles in the pile, the batcher plant is mounted on the upper body and the lower portion of the upper body is And a lower traveling body 2 which is provided on the left and right and has freely movable crawlers, and a power unit which is provided on the upper vehicle body and is provided with the batcher plant and which has an engine and a hydraulic pump. And a door 10, the power unit 1
The self-propelled batcher is characterized in that the power of the engine of 0 is shared for driving the cement compounding device 20 and the muddy water treatment device 30 and for traveling by the lower traveling body 2.

According to the first aspect of the present invention, the upper vehicle body is provided on the lower traveling body which is freely movable, and the upper vehicle body is provided with:
A power unit including an engine and a hydraulic pump, and a batcher plant including a cement mixing device and a mud treatment device are arranged. When the vehicle is self-propelled, the engine drives the traveling drive device of the undercarriage, and when the batcher plant is driven, the hydraulic pumps directly driven by the engine drive the drive motors of the cement mixing device and the mud treatment device. To do so. In this way, since each unit of the batcher plant is integrally and compactly mounted on the vehicle body, it is possible to carry out batch transportation on the trailer and reduce the installation space on site. In addition, since the batcher plant is self-propelled, this plant can be carried into a site with a narrow carry-in path without being restricted by the size of trucks, etc., and the installation location of a crane etc. is not affected. The batcher plant can be installed in a suitable place. Moreover, when the installation location is changed at the site according to the construction situation, it is possible to move easily without re-disassembling and assembling. Since the batcher plant can also be relocated along with the movement of the pile burying machine, it is not necessary to draw a long pipe between the two and it does not hinder the movement of other machines. Therefore, it is possible to reduce the cost at the time of carrying in, installing and relocating and to improve the work efficiency at the site.

Further, the hydraulic pump is driven by the engine,
This hydraulic pump directly drives a hydraulic motor for driving the cement mixing device and the muddy water treatment device. Therefore, the energy conversion efficiency is improved and the equipment used can be miniaturized. As a result, it is possible to improve fuel efficiency and reduce noise by downsizing the engine, and it is possible to downsize the hydraulic equipment and the entire device.

[0016] According to a second aspect of the present invention, in the self-propelled batcher according to the first aspect, the power unit 10 is disposed on an upper side of the upper vehicle body to temporarily store the mixed cement milk. And supply to the pile burying machine,
The agitator 28 of the cement mixing device 20 is disposed between the left and right crawlers and in front of or behind the upper vehicle body, and inputs cement milk in which cement and mud are mixed at a predetermined mixing ratio into the agitator 28. The mixer 24 of the apparatus 20 is disposed above the agitator 28 and charges the stored cement into the mixer 24. The cement silo 21 of the cement mixing apparatus 20 is disposed above the mixer 24 and collects the recovered drilling water. The desander 33 of the muddy water treatment device 30 that removes the soil and sand contained in the muddy water of a predetermined size or larger to produce recycled muddy water is disposed between the left and right crawlers and behind or in front of the upper vehicle body opposite to the agitator 28. The muddy water tank 36 of the muddy water treatment device 30, which is installed and stores the recycled muddy water created by the desander 33, is Disposed above the loaders 33, operation panel 15 for operating the cement blending device 20 and the muddy water processing apparatus 30 has a structure which is disposed on the side of the upper body of the power unit 10 and the opposite side.

According to the second aspect of the present invention, the power unit having the engine and the hydraulic pump is arranged laterally of the upper vehicle body. Since this power unit does not normally require monitoring or maintenance during work, the batcher plant can be installed by bringing the side surface of the vehicle body on which the power unit is arranged close to the wall surface of a narrow construction site. As a result, the side surface of the vehicle body opposite to the power unit can be used as a workable area, and the operation panel for operating the cement mixing device, the muddy water treatment device and the like is provided here. Therefore, the operation becomes easy and the workability is improved.
Further, an agitator and a desander are arranged between the left and right crawlers and in front of or behind the upper vehicle body. The agitator is cleaned with high pressure, for example, every hour during the work, and the desander is cleaned with high pressure, for example, once a day after the work is completed. As described above, since the agitator and the desander are arranged in the front part or the lower part of the rear part of the upper vehicle body, the cleaning work can be easily performed, and the workability and the maintainability can be improved. or,
The agitator and the desander are heavy because they store cement milk and muddy water, but since they are arranged in the lower part of the vehicle body, the stability of the entire vehicle body is improved.

The invention according to claim 3 is the self-propelled batcher according to claim 2, wherein the earth and sand discharge port 33a of the desander 33 is viewed from a side view of the crawler end portion of the lower traveling body 2. The feature is that it is provided overhanging to the rear or the front.

According to the third aspect of the present invention, the discharge port for discharging the sand of the desander is provided so as to overhang either behind or in front of the end of the crawler in a side view. Is hard to get into the crawler. Therefore, when the discharged earth and sand accumulate in an appropriate amount, the batcher plant can be easily moved forward or backward. Therefore, since the soil can be discharged to a new place, it is not necessary to remove the accumulated sediment by an industrial machine such as an excavator as in the conventional case, and the work efficiency is improved.

The invention according to claim 4 is the self-propelled batcher according to claim 2, wherein a low pressure pump 42 for discharging the cement milk in the agitator 28 is provided between the left and right crawlers and in the agitator 28. The inlets of the low-pressure pumps 42 are provided adjacent to each other, and are characterized by being disposed at least at the same height as or lower than the outlet of the agitator 28.

According to the fourth aspect of the present invention, the low pressure pump for discharging the cement milk in the agitator is provided between the left and right crawlers and adjacent to the agitator, and
The inlet of the low-pressure pump is arranged so as to be at least as high as or lower than the outlet of the agitator. Cement milk having a very high viscosity is difficult to be sucked up by a pump or the like, but by setting the low pressure pump inlet to the low position as described above, the cement milk in the agitator can be completely discharged. Therefore, the cement milk remaining in the agitator does not solidify and adhere, and the internal cleaning operation becomes easy.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION An example of an embodiment will be described below with reference to the drawings. Here, the system configuration in this embodiment is similar to that in FIG. 5 described above. 1 is a side view of a self-propelled batcher according to the present invention, and FIGS. 2, 3, and 4 are a front view, a rear view, and a plan view of the self-propelled batcher, respectively. This will be described in detail with reference to FIGS.

The self-propelled batcher 1 is provided with a lower traveling body 2 having a crawler capable of traveling at the lower portion, and an upper vehicle body above the lower traveling body 2. A power unit 10 including an engine and a hydraulic power unit including a hydraulic pump, a hydraulic tank, and the like is arranged side by side in the front-rear direction above the crawler on the right side when facing the front of the upper vehicle body. or,
Above the crawler on the left side of the upper vehicle body on the side opposite to the power unit 10, the operation panel 15 and the control device 1 are provided at a substantially central portion.
6 are provided. In addition to the above-mentioned operation switches and setting switches, the operation panel 15 is provided with a printer or the like for outputting record data of the state transition of the batcher plant, and each operation and display is performed via the control device 16. And print. The operation surface of the operation panel 15 is provided toward the left side of the upper vehicle body. An agitator 28 is provided between the left and right crawlers and in the front lower portion of the upper vehicle body, and a mixer 24 is provided above the agitator 28 and slightly to the left side. The agitator 28 and the mixer 24 have a drive motor 29 for stirring the cement milk and muddy water, respectively,
25 (see FIG. 5) is attached. Also, agitator 2
8 and the mixer 24 have a door 28 that can be opened and closed when cleaning the inside.
a and 24a are provided respectively, and this door 28a,
24a faces the front of the vehicle body. A cement silo 21 is provided above the mixer 24, and a drive motor 22 (see FIG. 5) is mounted on the cement silo 21.

The self-propelled batcher 1 is also equipped with a muddy water treatment device 30 for treating muddy water used during excavation, as described below, in addition to the cement mixing device 20. That is, the desander 33 is disposed between the left and right crawlers and behind the upper vehicle body.
A muddy water tank 36 and a fresh water tank 37 are provided on the upper part of 3. A tank 33b, which is located below the desander 33 and temporarily stores reclaimed mud, is located between the left and right crawlers, and an earth and sand discharge port 33a at an upper part of the desander 33 faces rearward of the vehicle body and is behind the crawler. It is provided so as to overhang behind the end. or,
A vacuum 32 is arranged on the left side of the descender 33. Further, a high pressure pump 41 is provided between the left and right crawlers and at an intermediate portion between the agitator 28 and the desander 33.
And a low pressure pump 42. The height of the inlets of the high pressure pump 41 and the low pressure pump 42 is the same as that of the agitator 2.
8 or at the same height as the outlet of the de-sander 33,
Or, the position is lower than this.

The high pressure pump 41 and the low pressure pump 42 are driven by a hydraulic motor. The control device 16 controls the flow rate of pressure oil discharged from the hydraulic pump in the power unit 10 to the hydraulic motor, and controls the rotation of the hydraulic motor. By this, the discharge amount from the high pressure pump 41 and the low pressure pump 42 is controlled. Each drive motor 22, 25, 29 is also composed of a hydraulic motor, and similarly, the control device 16 controls the rotation of each drive motor via, for example, a switching valve (not shown). As a result, the amount of cement input, the stirring speed, etc. are controlled so as to have predetermined values.

Next, the operation in such a configuration will be described. The self-propelled batcher 1 has a compact integrated batcher plant as described above, and is transported to the construction site by being mounted on, for example, a 20-t trailer. Further, it is not necessary to reassemble after transportation, and the vehicle can immediately move to the plant installation location by self-propelled.
Therefore, it is only necessary to carry it once, and it is possible to carry it in by itself even at a site with a narrow carry-in path. In addition, since the incorrect connection of piping and wiring when reassembling in the field as in the past is eliminated and there will be no malfunction or equipment failure, startup of the batcher plant on site will be smooth and efficient. . Further, since the lower traveling body 2 is of the crawler type, it can be easily moved even if the ground on the site is soft.
At this time, a crane for carrying in is not required, and the crane can be installed at an optimum place for the construction situation without being affected by the crane installation place and the workable range. When the self-propelled batcher 1 is installed, the self-propelled batcher 1 is installed so that a working area is provided on the left side facing the front of the vehicle body. Even if the site is narrow, the power unit 10 that does not normally require maintenance is arranged on the right side of the vehicle body. Therefore, by installing the right side close to a wall or the like, the left side can be effectively used as a work area. Can be used. Then, when installed in an appropriate place, the feed pipes for cement milk and drilling mud are connected to a pile burying machine (not shown).

At the start of work, cement is first put into the cement silo 21 located at the top. It is also assumed that a predetermined amount of muddy water is stored in the muddy water tank 36. Next, before starting excavation, the operator sets the injection amount of the muddy water for excavation by using a setting switch (not shown) provided on the operation panel 15. When the excavation start switch (not shown) is operated, the control device 1
6 opens the valve 38 to open the muddy water treatment device 30 to the mixer 24.
Then, the muddy water is charged into the agitator 28 by opening the valve 27. Then, the discharge amount of the muddy water from the high-pressure pump 41 is controlled based on the injection amount set above. As a result, the muddy water in the agitator 28 is high-pressure jetted from the tip of the excavating rod via the high-pressure pump 41. At the same time, the pile burying machine excavates while controlling the number of revolutions and the feed rate (feed rate) of the excavating rod and the drill. The muddy water used at the time of excavation is sucked by the vacuum 32 as “sludge” together with the excavated earth and sand and collected in the desander 33. Desander 33
Then, the earth and sand of a predetermined particle size or more are separated and eliminated by a vibrating screener or the like, and only the remaining regenerated muddy water is stored in the lower tank 33b.
Save to. Since the tank 33b is located between the left and right crawlers, the stability of the entire vehicle body is improved in terms of weight balance. The muddy water in the tank 33b is reintroduced into the muddy water tank 36 by the pump 34 through the pipe 35. Further, the removed sediment having a particle size equal to or larger than the predetermined grain size is discharged from the sediment discharge port 33a and accumulated behind the vehicle body.
In this way, muddy water is ejected and regenerated during excavation.

When the excavation is completed, the pile burying machine collects the excavating rod and the drill and bury them while sequentially connecting the piles of the predetermined length to the excavated holes. The tip of the pile at the lower end is covered with the elastic bag described above. Thereafter, cement milk is fed from the self-propelled batcher 1 to the pile burying machine as described below, and this cement milk is injected into the bag and the inside of the pile via the inside of the buried pile.
First, the operator sets the mixing ratio of cement milk using a setting switch (not shown) on the operation panel 15,
Then, the start of blending is instructed. The control device 16 sets each input amount of cement and muddy water so that the set mixing ratio is achieved. A predetermined amount of the cement in the cement silo 21 is scraped out by the drive motor 22 and fed into the mixer 24 via the valve 23. At this time, the weight meter 26 measures the input amount, and the control device 16 monitors the input amount based on the measurement signal. When the input amount reaches the above-mentioned set value, the valve 23 is closed and the drive motor 22 is stopped. Let
Further, the control device 16 opens the valve 38 to add the muddy water from the muddy water tank 36 to the mixer 24, and monitors the input amount based on the measurement signal of the weight scale 26. When the input amount reaches the above set value, the valve is opened. Close 38. The supplied cement and muddy water are agitated and mixed by the drive motor 25. Then, the mixed liquid mixture is mixed as cement milk into the valve 27.
It is thrown into the agitator 28 via the and stored, and if necessary, it is agitated by the drive motor 29 during the storage. Since the agitator 28 is located between the left and right crawlers, the stability of the entire vehicle body is improved in terms of weight balance.

The cement milk stored in this manner is discharged by a predetermined amount by the low pressure pump 42 and injected through the inside of the buried pile. At this time, the control device 16 controls the rotation of the low-pressure pump 42 to adjust the discharge amount. With this, the discharge amount is accurately controlled. Further, since the height of the inlet of the low pressure pump 42 is at least as high as or lower than the outlet of the agitator 28, the cement milk in the agitator 28 is easily discharged from the outlet and is sucked by the low pressure pump 42. easy.

By the way, when an appropriate amount of earth and sand discharged from the earth and sand discharge port 33a is accumulated on the ground behind the vehicle body, the self-propelled batcher 1 is moved forward to arbitrarily change the earth and sand accumulation place. Therefore, it becomes possible to continue the work without sequentially removing the accumulated soil with an industrial vehicle such as an excavator. Further, depending on the situation of the construction process, it may be necessary to relocate the batcher plant because it is necessary to bury piles on the ground at the installation site of the batcher plant, for example. Even at this time, the self-propelled batcher 1 can be self-propelled and easily moved, and the installation location can be easily changed. Further, since the self-propelled batcher 1 can also be arbitrarily relocated along with the movement of the pile burying machine, it is not necessary to lengthen the pipe between the two, and the movement of other machines is not obstructed by this pipe or the like.

The agitator 28 and the mixer 24 are
It is washed with fresh water every predetermined time (for example, every one hour). At this time, the controller 16 controls the valve 39 to feed the fresh water from the fresh water tank 37 into the mixer 24, and the drive motor 25 stirs the fresh water to wash the inside of the mixer 24.
After that, this washed liquid is put into the agitator 28, and fresh water is separately put into the agitator 28 from the fresh water tank 37.
Wash inside. The liquid after cleaning is discharged to the outside via the high pressure pump 41 or the low pressure pump 42.
Also at this time, due to the relationship between the heights of the inlets of the high-pressure pump 41 and the low-pressure pump 42 and the height of the outlet of the agitator 28 as described above, residues such as cement milk in the agitator 28 are less likely to remain. Similarly, the desander 33 is washed with fresh water, for example, once a day at the end of the work. The cleansing with fresh water is performed automatically or manually. When washing manually, the mixer 24 and the door 24 of the agitator 28
a and 28a can be opened to clean the inside or the outside. In this way, mixer 24, agitator 2
Since 8 and the descender 33 are provided at the lower part of the front or rear end of the vehicle body, the workability during cleaning is improved. Since it is movable, it can be moved to any place for cleaning.

In the self-propelled batcher 1, the pump unit 40
For driving each pump of the above, and cement mixing device 20
A hydraulic motor is used as a drive motor used in the muddy water treatment device 30. The pressure oil for driving these is supplied from a hydraulic pump that is directly driven by the engine in the power unit 10. Therefore, the energy conversion efficiency is improved as compared with the conventional case where the electric motor is driven via the inverter. As a result, it is possible to reduce the size of the engine and the hydraulic equipment, thereby reducing the size of the entire device, reducing costs, reducing noise, and improving fuel consumption. Further, it is not necessary to receive a high voltage (AC200V or the like) for driving the electric motor from the generator 44 as in the conventional case. Therefore, even if the periphery of the device that uses a large amount of water is submerged as described above, there is no more fear of electric shock, etc.

[Brief description of drawings]

FIG. 1 is a side view of a self-propelled batcher plant according to the present invention.

FIG. 2 is a front view of a self-propelled batcher plant according to the present invention.

FIG. 3 is a rear view of the self-propelled batcher plant according to the present invention.

FIG. 4 is a plan view of a self-propelled batcher plant according to the present invention.

FIG. 5 shows a system configuration block diagram of a batcher plant.

FIG. 6 shows an external view of a conventional stationary batcher plant.

FIG. 7 shows an example in which a stationary batcher plant is divided and conveyed.

[Explanation of symbols]

 1 Self-propelled batcher 2 Lower traveling body 10 Power unit 15 Operation panel 16 Control device 20 Cement compounding device 21 Cement silo 22, 25, 29, 34 Drive motor 23, 27, 38, 39 valve 24 Mixer 24a, 28a Door 26 Weight scale 28 Agitator 30 Muddy water treatment equipment 31, 35 Piping 32 Vacuum 33 Desander 33a Sediment discharge port 36 Muddy water tank 37 Fresh water tank 40 Pump part 41 High pressure pump 42 Low pressure pump 44 Generator

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroyuki Umeda Inventor Hiroyuki Umeda 3-20-1 Nakase, Kawasaki-ku, Kanagawa Prefecture Komatsu Plant Construction Robot Department (72) Inventor Hideki Sugawara 3-Nakase, Kawasaki-ku, Kawasaki, Kanagawa Prefecture 20-1 Construction company Komatsu Ltd. Construction robot department

Claims (4)

[Claims] 1. A cement compounding device for producing and storing cement milk in which cement and muddy water are mixed at a predetermined compounding ratio.
(20) and a mud treatment device (30) that collects mud water at the time of excavation, removes soil and sand of a predetermined particle size or more to regenerate mud, and stores this mud. In a batcher plant that feeds mud water for excavation and cement milk for burying piles to a pile burying machine for burying piles in the drilled holes, the above batcher plant is mounted on the upper body and A lower traveling unit (2) provided on the lower side of the vehicle and having freely movable crawlers on the left and right, and a power unit (10) having an engine and a hydraulic pump provided on the upper vehicle body alongside the batcher plant.
And the engine power of the power unit (10) is shared by the cement compounding device (20) and the muddy water treatment device (30) for driving and by the lower traveling body (2). Running type batcher. 2. The self-propelled batcher according to claim 1, wherein the power unit (10) is disposed on an upper side of the upper vehicle body to temporarily store the mixed cement milk and supply it to the pile burying machine. Yes, the agitator (28) of the cement compounding device (20),
A mixer (24) of the cement compounding device (20) disposed between the left and right crawlers and in front of or behind the upper vehicle body, and charging cement milk in which cement and mud are mixed at a predetermined mixing ratio into the agitator (28). ) Is disposed above the agitator (28) and puts the stored cement into the mixer (24) .The cement silo (21) of the cement compounding device (20) is a mixer (2
The desander (33) of the muddy water treatment device (30), which is disposed above 4) and removes the sediment of a predetermined particle size or more contained in the muddy water of the recovered drilling water, between the left and right crawlers. And the above agitator
(28) is arranged behind or in front of the upper car body on the opposite side and stores the reclaimed mud created by the desander (33).
The muddy water tank (36) of the muddy water treatment device (30) is a desander.
The operation panel (15), which is arranged above the (33) and operates the cement mixing device (20) and the mud treatment device (30), is arranged on the side of the upper vehicle body opposite to the power unit (10). A self-propelled batcher characterized by that. 3. The self-propelled batcher according to claim 2, wherein the sediment discharge port (33a) of the desander (33) is rearward or forward of the crawler end of the lower traveling body (2) in a side view. A self-propelled batcher characterized by being installed overhanging on. 4. The self-propelled batcher according to claim 2, wherein a low pressure pump (42) for discharging cement milk in the agitator (28) is provided between the left and right crawlers and adjacent to the agitator (28). A self-propelled batcher characterized in that the inlet of the low-pressure pump (42) is provided at least at the same height as or lower than the outlet of the agitator (28).