JPH09137465A - Civil engineering machinery and earth and sand treatment method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to carry out filling work while sprinkling water without using workers or machines for sprinkling water, reduce excessive expanses for obtaining necessary sprinkling water and to prevent the danger to work. SOLUTION: This civil engineering machinery (bulldozer) 1 is equipped with an earth moving plate 2 as an earth and sand treatment section for treating earth and sand. A sprinkling pipe 7 for sprinkling water on earth and sand from the neighborhood of the earth moving plate 2 is provided, and an engine pump 9 for supplying water inside a water supply pump 6 through hoses 10a and 10b is provided to the sprinkling pipe 7. During the filling work, the engine pump 9 is driven to sprinkle earth and sand with water from the sprinkling pipe 7. Accordingly, worker and sprinkler for sprinkling are not required.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthmoving machine and an earth and sand treatment method for treating earth and sand such as excavation, earth filling, leveling and rolling.

[0002]

2. Description of the Related Art Among earthworks, for example, a bulldozer is used to lay the embankment material with a discharge plate, and the embankment work is carried out. One of the important matters is the adjustment of the water content in the material. Generally, at the time of embankment work, it is required that each embankment material be constructed near the optimum water content ratio for that material. This means that when the water content is extremely low or high compared to the optimum water content, the quality of the material after embankment (density after compaction, permeability, etc.) cannot be satisfied. This is because there is a possibility that waving or the like may occur during the construction, and the construction in the next step may become impossible. Therefore, it is often necessary to adjust the water content of the materials used before embankment construction.

In order to adjust the water content ratio, conventionally, the water supply ratio has been adjusted in advance by manually sprinkling water on each embankment material using a hose or running a water sprinkler.

[0004]

However, in the past, in addition to engaging in actual embankment work using a bulldozer or the like, a watering worker or a watering machine, which is a watering machine, is required, resulting in extra expense. Not only becomes bulky, but also puts a heavy burden on the operator, and the surface that can be sprinkled is limited.
It is necessary to carry out the work at the same time as the earth pushing work. In this case, there are many safety problems because the bulldozer and the watering operator or the watering truck are crossed during movement.

An object of the present invention is to provide an earthmoving machine capable of advancing embankment work while sprinkling water without using an operator or a machine for watering.

[0006]

According to the first aspect of the present invention,
In a civil engineering machine such as a bulldozer equipped with a sediment treatment section such as a discharge plate for treating sediment, a sprinkler section for sprinkling the sediment from the vicinity of the sediment treatment section is provided, and a tank for supplying water to the sprinkle section is installed. It is characterized by consisting of. The invention according to claim 2 is characterized in that the sprinkling section is provided with a flow rate control means for controlling a sprinkling amount. The invention according to claim 3 is characterized in that, while the earth and sand is being processed by the earth and sand processing section of the earthmoving machine, the earth and sand is made to contain an appropriate amount of water while being sprinkled by the earthmoving machine.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. First Embodiment of the Invention FIG. 1 is an explanatory view for explaining a first embodiment 1 of a civil engineering machine and a sand and sand treatment method of the present invention, and the first embodiment shows a case where the civil engineering machine is applied to a bulldozer. Reference numeral 1 denotes a bulldozer having the same shape as a general one. Reference numeral 2 denotes an earth discharging plate as a sediment processing unit, which is swingably attached to a chilled bar rotatably installed in front of the bulldozer 1 as is well known. Reference numeral 7 denotes a water sprinkling pipe that constitutes a water sprinkling portion, and as shown in FIGS. 2 and 3, is fixed to the tips of a plurality of inverted L-shaped support metal fittings 8 fixed above the soil discharging plate 2, The earth plate 2 is attached at a front position above the earth plate 2 so as to extend parallel to the earth plate 2 with a total length that extends corresponding to the entire width of the earth plate 2. Further, as shown in FIG. 3, the water sprinkling pipe 7 is formed of a prismatic hollow body, and when the sprinkler pipe 7 is attached to the soil discharging plate 2, the front wall 11 is inclined, for example, from the vertical direction 20.
It is installed so that it faces downward. A plurality of water spray holes 12 are formed at a predetermined interval on the front wall 11 of the water spray pipe 7.
Is formed, and is installed so as to open downward from the wall 11 by, for example, 60 degrees at a position slightly above the formation position of each sprinkling hole 12, and when sprinkling from each sprinkling hole 12, the sprinkling is reflected uniformly. In front of the soil discharge plate 2, there is provided one sprinkler reflection plate 13 having directivity.

Reference numeral 9 is an engine pump for giving watering pressure,
For example, it is installed on the side surface side of the body in front of the operator's cab 4, and the water discharge side in front of the engine pump 9 is connected to one end of the water sprinkling pipe 7 from the flexible hose 10a through the communication pipe 8a and the joint 8b. The water suction side behind the engine pump 9 communicates with a water supply tank 6 described later through a flexible hose 10b. The water supply tank 6 is installed on the rear side of the body behind the operator's cab 4. For example, the water supply tank 6 has a height that is about the entire height of the body and a width that is close to the height dimension, and has a water supply port 6a on the upper surface. Has a water inlet 6 on the side by an operator
A ladder 6b for facilitating water supply work to a is installed.

Next, the operation will be described. FIG. 4 shows a situation where the embankment material is temporarily placed. As shown in this figure, the embankment material 15 is obtained by alternately stacking coarse-grained material 17 and red soil (fine-grained material) 16, for example. Has been done. The amount of water spray required for the embankment material 15 is preliminarily investigated from, for example, a table in which the results of the test for obtaining the optimum water content ratio according to the embankment material 15 are described. The optimum water content ratio is, for example, 21%. For embankment work, for example, as shown in FIG.
The bulldozer 1 itself is mounted on the embankment material 15 that has been temporarily embanked so that the bulldozer 1 faces a slope from the top of the embankment material 15. In this state, the engine pump 9 is driven while controlling the drive amount of the engine pump 9 for watering so that the optimum water content ratio is obtained, and the water in the water supply tank 6 is supplied to the flexible hoses 10b and 10a. It is supplied to the water sprinkling pipe 7 via the water sprinkling pipe 7, and water sprinkling is started from each water sprinkling hole 12 of the water sprinkling pipe 7. At this time, the water spray from each water spray hole 12 collides with the water spray reflection plate 13 and is scattered downward. The scattering position of the sprinkling water can be adjusted by appropriately swinging the soil discharging plate 2. Thus, when the bulldozer 1 is moved forward at an appropriate speed while pressing the soil discharge plate 2 against the embankment material 15 while sprinkling water, part of the embankment material 15 is pushed by the soil discharge plate 2 to form the coarse-grained material 17. The red soil (fine-grained material) 16 is appropriately mixed and, at the same time, the optimum water content ratio is obtained and the red soil (fine grain material) 16 is transferred to a target position.

In the first embodiment, the hoses 10a,
Since the sprinkling pipe 7, the engine pump 9, and the water supply tank 6 which are connected through 10b are provided, it is possible to adjust the optimum water content ratio without carrying out the above work without using an extra worker for sprinkling or a sprinkler. It is possible to reduce the unnecessary expense and improve the safety of the work.
In addition, by measuring the water content in advance and the amount of work of the civil engineering machine per unit time, the water content necessary to adjust to the target water content is calculated, and the flow rate adjustment valve is adjusted to that water content. It is also possible to semi-automatically adjust to the target water content ratio by adjusting the amount of water sprinkled using, for example.

The present invention is not limited to the application to the bulldozer 1 only, but can be applied to an excavating machine or the like. In that case, a sprinkler section is provided in the excavation processing section for excavating, Similarly, for example, when collecting (excavation-sedimentation) from a mine or the like as work, the water content can be adjusted by excavating while sprinkling the material.

Second Embodiment of the Invention 2. FIG. 6 is an explanatory diagram illustrating the configuration of the main part of the second embodiment,
Reference numeral 21 is a flow rate adjusting valve installed in the flexible hose 10a shown in FIG. 1, and a cock 22 that can adjust the flow rate of water supplied to the sprinkling pipe 7 by adjusting the opening degree of the internal valve is provided at the upper part of the main body. It is provided. A scale (not shown) indicating the number of rotations of the cock 22 is provided on the main body of the flow rate adjusting valve 21 around the rotary shaft 23 of the cock 22 using a scale plate or the like. 24 is a quick reference table for adjusting the water content, and stay 2
4a is affixed to the surface of a plate 24b provided via the flow control valve 21 in the body in front of the cab 4.
Will be installed near the. Water content ratio adjustment chart 24
As shown in FIG. 7, the contents described in (1) are the water content ratio γ1 of the material to be adjusted, the target required water content ratio γ2, the required water sprinkling amount W, and the cock rotation speed n. For example, as a result of measuring the water content ratio γ1 of the current material, if this water content ratio γ1 is 15.0% and the target required water content ratio γ2 is 21.0%, the required water sprinkling amount W is 35.5 L. / Min, it can be seen that the cock rotation speed n is 4 rotations.

When carrying out embankment work, the operator measures the water content ratio γ1 of the current embankment material at the site, and the cock rotation speed n corresponding to the water content ratio γ1 corresponding to the required water content ratio γ1 is determined from the water content ratio adjustment chart 24. It is sufficient to read it and turn the cock 22 by the number of rotations corresponding to the number of rotations n. After that, when the engine pump 9 is driven, an optimum amount of water spray (required water spray amount W) is obtained from the water spray pipe 7. The cock speed n is calculated from the required water sprinkling amount W, and the necessary water sprinkling amount W is the water content ratio γ1 of the material to be adjusted, the target water content ratio γ2, and the unit work of the bulldozer 1 which is a civil engineering machine. Quantity Q
It can be calculated in advance by a known calculation formula based on such factors. The flow rate control valve 21, the cock 22, the moisture content adjustment quick reference table 24, and the like may be routed into the operator's cab 4. In this way, the driver does not have to go out and adjust the cock 22.

In the second embodiment, since the water content ratio adjusting quick reference table 24, which can indicate an appropriate amount of water based on the current measurement of the water content ratio γ1 of the embankment material, is provided near the cock 22,
In addition to the effects of the first embodiment, the work of adjusting the water spray amount is extremely accurate and easy, and the work of determining the water spray amount is also extremely accurate and easy.

Third Embodiment of the Invention FIG. 8 is an explanatory diagram illustrating a configuration of a main part of the third embodiment,
Reference numeral 31 is an automatic control flow rate adjusting valve installed in the flexible hose 10a shown in FIG. 1, which automatically adjusts the opening degree of the internal valve based on a signal described later to automatically adjust the flow rate of water supplied to the sprinkling pipe 7. A control unit 32 that can be adjusted dynamically is provided. The control unit 32 outputs a signal γ1 ₁ representing the water content ratio γ1 of the material to be adjusted and a signal γ representing the target required water content ratio γ2.
2 ₂ Based Figure 7 water content ratio γ1 of current materials shown in the required water content of the target .gamma.2, require watering amount is W, the water content ratio adjustment Chart showing the relationship between the valve opening degree corresponding to the cock speed n The optimum required water sprinkling amount W (or valve opening) extracted from the storage unit 33 that holds the tabulated information is recognized, and the valve inside the automatic control flow rate adjusting valve 31 is automatically adjusted.

When performing embankment work, for example, by operating the ten-key pad, when the information of the measured water content ratio γ1 of the material and the target required water content ratio γ2 is input to the control unit 32 and the start signal S is input, the control unit is operated. 32 is an optimum required watering amount W (or valve opening) from the storage unit 33 based on this information.
Is detected and recognized, and the opening degree of the valve inside the automatic control flow rate adjusting valve 31 is adjusted according to the information of the optimum required water spray amount W (or valve opening degree) obtained by this search. After that, when the engine pump 9 is driven, an optimum amount of water spray (required water spray amount W) is obtained from the water spray pipe 7.

In the third embodiment, the work of adjusting the water spray amount is much more accurate and easier than the effect of the second embodiment, and the work of determining the water spray amount is also much more accurate. There is an effect that is easy.

[Brief description of the drawings]

FIG. 1 is a side view showing a configuration of a civil engineering machine and a sand and sand processing method according to a first embodiment of the present invention.

FIG. 2 is a front view showing a configuration of the civil engineering machine and the earth and sand treatment method according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a configuration of a water sprinkling pipe used in the first embodiment of the present invention.

FIG. 4 is an explanatory diagram illustrating a temporary placement state of the embankment material.

FIG. 5 is an explanatory diagram illustrating an operation according to the first embodiment of the present invention.

FIG. 6 is an explanatory diagram illustrating a configuration of a main part of a second embodiment 2 of the present invention.

FIG. 7 is an explanatory diagram illustrating a water content ratio adjustment reference table used in the second embodiment 2 of the present invention.

FIG. 8 is an explanatory diagram illustrating a configuration of a main part of a third embodiment 3 of the present invention.

[Explanation of symbols]

 1 Bulldozer (Civil Engineering Machinery) 2 Soil Discharge Plate (Soil Disposal Department) 6 Water Tank 7 Sprinkling Pipe (Sprinkling Section) 9 Engine Pump (Sprinkling Section) 10a, 10b Flexible Hose (Sprinkling Section) 12 Sprinkling Hole 13 Sprinkling Reflector 21 Flow rate adjustment valve (flow rate control means) 31 Automatically controlled flow rate adjustment valve (flow rate control means)

Claims (3)

[Claims] 1. A civil engineering machine comprising a sediment treatment section for treating sediment, comprising a water sprinkling section for sprinkling water from the vicinity of the sand treatment section, and a tank for supplying water to the sprinkling section. machine. 2. The civil engineering machine according to claim 1, wherein the sprinkling section is provided with a flow rate control means for controlling a sprinkling amount. 3. A method for treating earth and sand, characterized in that, while the earth and sand is being treated by the earth and sand treatment section of the earthmoving machine, the earth and sand is allowed to contain an appropriate amount of water while being sprinkled by the earthmoving machine.