JP2002161692A - Water spraying method of tunnel working breaker and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water spraying method of a tunnel working breaker and a device eliminating the control work of a water-supply hose by movement of the breaker capable of carrying out water spraying work together with excavation work when rock excavation is made in tunnel work and giving mobility to crushing work. SOLUTION: A water tank 12 is provided to a body equipped with the breaker 8, and a pump driven by a battery for the breaker 8 as a power source is driven together with an operating pedal 17 of the breaker 8 to spray water in the vicinity of a crushing section of the breaker 8 through a nozzle 10 mounted on the front end of the water supply hose 7 from the water tank 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a method and an apparatus for watering a breaker for tunnel construction for reducing dust generated when a breaker is used in excavated tunnel construction.

[0002]

2. Description of the Related Art Conventionally, in excavating rocks or the like using a breaker in mountain tunnel construction, if the excavation worker inhales dust generated by rock crushing, pneumoconiosis may occur. The excavation is performed while sprinkling water near the crushing part.

[0003] Therefore, as shown in FIG. 7, a water pumping apparatus, a water supply tank 2, a water supply pump 3, etc., which is temporarily placed at a site for pumping water from a river R or the like, moves from a water supply facility outside the mine A to a pit B inside the mine. A pipe 4 is provided along the side wall, and a valve 6 is provided in the vicinity of the face 5 to supply water as piercing water for blasting, piercing water for lock bolts, and washing water for a spraying machine after spraying is completed.

Using this water supply facility, a valve 6 at the tip is used.
Water is supplied to the breaker 8 with a hose or the like, and a valve 9 provided in the driver's seat of the breaker 8 is opened, whereby a nozzle for watering attached to a cover of the breaker 8 through a water supply pipe 7 as shown in FIG. When the breaker 8 is operated, the chisel 11 is used to spray water toward the face of the face 5 which is in contact with the rock. That is, dust generated by the breaker 8 crushing the rock is reduced by spraying water, so that there is no danger of the operator getting into the pneumoconiosis.

[0005] Also, during rock drilling by the breaker 8, a worker other than the operator of the breaker 8 sprays water from the valve 6 at the tip directly to the face 5 with a water supply hose 7 or the like during rock cutting by the breaker 8. It is also done.

However, in the above-mentioned conventional watering work, the pipe 4 and the water supply hose 7 become obstacles during the rock drilling work of the worker, and it takes time and labor to switch the pipes and hoses, and a separate work is required for the watering work. There is a problem that it requires labor and it is difficult to give mobility to the crushing work.

[0007]

SUMMARY OF THE INVENTION According to the present invention, watering work during rock excavation in tunnel construction is performed in conjunction with excavation work, so that crushing work can be made more mobile, and a water supply hose and the like can be provided by moving a breaker. Provided is a method and an apparatus for watering a breaker for tunnel construction, which does not require turning work.

[0008]

According to the present invention, a water tank is provided on a vehicle body having a breaker mounted thereon, and a pump driven by using a battery of the breaker as a power supply is driven in conjunction with an operation pedal of the breaker, thereby providing a water tank. The method comprises a method of watering a breaker for tunnel construction, which sprays water near a crushed portion of the breaker through a nozzle attached to the tip of a water supply hose of the present invention. A pump that feeds water and is driven by the battery of the breaker as a power supply, a water supply hose with a rear end attached to the discharge port of the pump and a tip attached to a nozzle that sprays water near the breaker of the breaker, and a breaker operating pedal And a limit switch that drives a pump in conjunction with the water supply of a breaker for tunnel construction.

Further, the apparatus of the present invention comprises the above-mentioned two pumps arranged in series, and the apparatus of the present invention has a nozzle for spraying water near the crushing portion of the breaker, wherein a type of water spray is provided. A switchable nozzle block for watering is attached.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a tunnel breaker watering method and apparatus according to the present invention.

FIG. 1 is a side view of a boom, such as a backhoe, according to an embodiment of the present invention, in which a water spray device for a breaker of the present invention is mounted. A pump group in which two submersible pumps 19 and watering pumps 20 for supplying the water in the water tank 12 and driven by the battery 15 of the breaker 8 as a power supply are arranged in series, and a rear end is attached to a discharge port of the watering pump 20. The submersible pump 19 and the water sprinkler are interlocked with a water supply hose 7 having a nozzle 10 attached to the tip thereof for sprinkling water near the crushing portion of the breaker 8 which rocks, and an operating pedal 17 provided in the cab of the body of the breaker 8. The limit switch 14 drives the pump 20.

That is, the power of the pump is provided in the main body of the body of the breaker 8, and the breaker 8 is operated by using the battery 15 shown in the power supply circuit diagram of FIG. Actuating pedal 1
7 is provided with a limit switch 14 related to the power supply of the pump. When the operation pedal 17 is depressed, the pump operates so that water is supplied to the water supply hose 7, and the operation pedal 17 of the breaker 8 is depressed. In response to the start of the operation of the breaker 8 and the rock excavation operation being performed, water is sprayed near the crushed portion of the rock excavated from the nozzle 10.

In the figure, reference numeral 18 denotes a switch box. A pump for supplying water from the water tank 12 includes a submersible pump 19 for pumping water from the water tank 12 and a sprinkling pump 20 for supplying water. Although two units are arranged in series, the power of the battery 15 cannot drive a very large head pump.
For example, the underwater pump 19 in this embodiment uses a pump having a diameter of 25 mm, a maximum discharge rate of 70 l / min., And a total head of 5 m, and the watering pump 20 has a diameter of 32 mm. Maximum discharge rate 100 l / min.
, With a total head of 18.5 m.

Next, as a nozzle 10 for spraying water near the crushing portion of the breaker 8 shown in FIG. 1, a nozzle block 16 shown in an enlarged front view of FIG. 3 is replaced by a plan view of FIG.
5 of the enlarged front sectional view in the −X direction, and further, YY of FIG.
As shown in FIG. 6 which is an enlarged side sectional view in the direction, the through holes 22 for the through bolts are respectively fastened and fixed to the main body of the breaker 8, and the water from the water supply hose 7 is passed through the pipe 23. Nozzle block 16
In FIG. 4, reference numeral 24 denotes a collar, and reference numeral 25 denotes a bracket.

The nozzle block 16 shown in FIG.
As shown in FIG. 6, a screw 28 is attached to the nozzle body 26 so as to be rotatable around a fine screw 27, and five different nozzles are rotated 360 ° in the nozzle block 16 in FIG. In this way, commercially available ones whose types can be switched can be used. For example, the nozzle P in FIG. 3 is for direct jet, the nozzle Q is for diffusion, the nozzle S is for rectification, The nozzle of No. is used for spraying, and the nozzle of U is used for watering for showering. The appropriate nozzle is switched according to the state of the excavation site where watering is performed, and 30 in FIG. 6 is an O-ring. There is a groove 31 for the stopper.

In the above water sprinkler, each pump for driving water from the water tank 12 attached to the body of the vehicle body using the battery 15 of the body of the breaker 8 as a power source is driven in conjunction with the operation pedal 17 of the breaker 8. In this way, water is properly sprayed near the crushed portion of the breaker 8 through the nozzle 10 at the tip of the water supply hose 7, and it is possible to automatically reduce scattering of dust generated when the breaker 8 is used in tunnel construction. Since the water tank 12 is also attached to the body of the breaker 8, it is not necessary to switch the hose for watering when the breaker 8 is moved.

[0017]

According to the method and apparatus for watering a breaker for tunnel construction of the present invention described above, most parts of the watering apparatus are provided in the vehicle body, so that the crushing operation can be made more mobile. This eliminates the necessity of turning the water hose by moving the breaker, thereby improving work efficiency.

Further, when the breaker is used for excavation, the sprinkler is always automatically operated in conjunction with the breaker operating pedal, so that the dust generated at the time of rock crushing is surely and efficiently removed. Water can be sprinkled, and the emission of dust can be reduced.

Further, according to the present invention, the most suitable nozzle can be selected from the nozzle block for watering according to the state of rock crushing, so that effective watering according to the state of crushing can be performed.

[Brief description of the drawings]

FIG. 1 is a side view in which a watering device according to an embodiment of the present invention is mounted.

FIG. 2 is a power supply circuit diagram of the device of FIG.

FIG. 3 is a front view of a nozzle block applied to the nozzle of the sprinkler according to the present invention.

FIG. 4 is a plan view in which the nozzle block of FIG. 3 is attached to the breaker body of FIG. 1;

FIG. 5 is an enlarged front view of a partial cross section taken along line XX of FIG. 4;

FIG. 6 is an enlarged side view of a partial cross section in the YY direction of FIG. 4;

FIG. 7 is a schematic view of a water distribution line of a conventional breaker.

FIG. 8 is a perspective view of a main part showing a sprinkling nozzle of the breaker of FIG. 7;

[Explanation of symbols]

 7 Water supply hose 8 Breaker 10 Nozzle 12 Water tank 14 Limit switch 15 Battery 16 Nozzle block 17 Operating pedal

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masafumi Ueno 5, Yonbancho, Chiyoda-ku, Tokyo Toa Construction Industry Co., Ltd. (72) Inventor Jyotaro Miyazaki, Yonbancho, Chiyoda-ku, Tokyo 5 F term in the company (reference) 2D012 DA02 2D054 AC20 BA24 BB08 2D065 AA03 AA26

Claims (4)

[Claims] 1. A water tank is provided on a vehicle body to which a breaker is attached, and a pump driven by a battery of the breaker as a power supply is driven in conjunction with an operation pedal of the breaker, thereby being attached to a tip of a water supply hose from the water tank. Watering method for a breaker for tunnel construction, which sprays water near the crushed part of the breaker through a nozzle. 2. A water tank, a pump for supplying water from the water tank and driving the battery of the breaker as a power source, and a rear end mounted on a discharge port of the pump and a breaker mounted on a vehicle body to which the breaker is mounted. A water supply device for a tunnel construction breaker consisting of a water supply hose attached to a nozzle that sprays water near the crushing part and a limit switch that drives a pump in conjunction with the breaker operating pedal. 3. The watering device for a breaker for tunnel construction according to claim 2, wherein two pumps are arranged in series. 4. The water spray device for a tunnel construction breaker according to claim 2, wherein a water spray nozzle block capable of switching the type of water spray is attached to a nozzle for spraying water near the crushing portion of the breaker.