JPH0462235A - Sprinkler in power shovel - Google Patents

Abstract

PURPOSE:To improve the efficiency of work by setting a water tank to be balanced to the left and right, at the rear of the counter weight of an upper swing body, and by contriving water to be fed to a sprinkling nozzle set at the tip of an arm, at control operating section set near a driving seat. CONSTITUTION:At the rear of a counter weight 17 set at the rear end section of the upper swing body 15 of a power shovel 10, a Water tank 50 is set to be balanced to the left and right. Besides, a feed water pump 42 is set, and water is fed to a sprinkling nozzle 46 at the tip section of an arm 25 via a discharge hose 43 and a water conveying hose 44. Besides, near a driving seat 18, a control operating section for operating sp-rinkling from the nozzle 46 is set, and sprinkling operation is performed from the driving seat. As a result, the efficiency of work can be improved.

Description

Detailed Description of the Invention "Industrial Application Field" The present invention supports an upper revolving structure on an undercarriage, extends a mast consisting of a boom on the base side and an arm at the tip end from the upper revolving structure, and This invention relates to a water sprinkler system for a power shovel equipped with a working device at the tip.

``Conventional technology'' Power shovels are often used in civil engineering and construction work, and their powerful power is used to excavate.

Work such as crushing is performed.

For example, when a building or wooden structure is demolished and removed for reconstruction, etc., a large amount of dust is generated due to the destruction, and in extreme cases, it can even cause pollution problems, so be careful not to let the dust settle. It is necessary to perform the work by sprinkling water. In addition, when cutting gas, etc., it may be necessary to sprinkle water to prevent fires, and when loading a dump truck for transportation, etc., it may be necessary to sprinkle water to prevent dust from building up.

As mentioned above, work using a power shovel often requires watering, but in the past, watering was done manually from a distance from the power shovel using a regular rubber hose.

``Problem to be Solved by the Invention'' However, in this conventional method of watering, the upper revolving body and the long boom and arm extending from it are used to raise and rotate. If you sprinkle water while checking safety, work efficiency will decrease and it will still be a dangerous job.Also, since you will be spraying water from a distance from the end of the arm, you will not be able to spray water as efficiently as you want. There was a problem in that if there was no water available and there was no convenient tap, it would be very difficult to get water.

The present invention was made by focusing on these conventional problems, and provides a water sprinkling device for a power shovel that can obtain water without a water tap and can sprinkle water efficiently with a large capacity. is intended to provide.

"Means for Solving the Problems" The gist of the present invention for achieving the above object is as follows: (1) An upper revolving body is supported on the lower traveling body, and a boom on the base side and a tip end of the upper revolving body are supported from the upper revolving body. A water sprinkling device for a power shovel comprising a mast consisting of an arm extended and a working device installed at the tip of the arm, comprising: a water tank equipped so as to be balanced on either the left or right behind the vicinity of the rotation center of the upper revolving body; a water guide system arranged to guide water to the tip of the arm and having a water supply pump and a nozzle device at the end; and a water guide system provided near the driver's seat provided on the upper revolving body to control the amount of water in the water guide system. A water sprinkling device for a power shovel, comprising: a control operation section;

2. A water sprinkling system for a power shovel comprising an upper rotating body supported on the lower traveling body, a boom at the base and an arm at the distal end extending from the upper rotating body, and a working device installed at the end of the arm, wherein the upper rotating body supports the upper rotating body. a water tank equipped so that the left and right sides are balanced after a counterweight provided at the rear end; a water tank arranged to guide water from the water tank to the tip of the arm; and a water supply pump and a nozzle device at the end. A water sprinkling system for a power excavator that enjoys a water conveyance system and a control operation unit that is provided near the driver's seat on the upper revolving structure and adjusts the amount of water in the water conveyance system! .

3. The water sprinkling device for a buff shovel according to item 1 or 2, characterized in that the counterweight has a higher specific gravity than normal equipment and a space for a water tank is formed.

``Function'' A power excavator moves its position using the lower traveling body, rotates the upper revolving body, raises and lowers the boom and arm that make up the mast, and uses various work devices such as packets attached to the ends of the two arms. excavation, destruction, transportation, etc.

The water stored in the water tank is installed so that the left and right sides are balanced after the vicinity of the rotation center of the upper rotating body, so it does not adversely affect the balance of movement and operation during work.
Work is carried out smoothly.

When watering is necessary, the water supply pump guides the water in the water tank through the water conveyance system to the tip of the arm, and the amount of water is adjusted by operating the control unit from the driver's seat installed in the upper revolving structure. Ru.

The water guided to the tip of the arm is sprayed directly from the nozzle device installed at the end of the water conveyance system to the area being worked on by the work equipment, suppressing the generation of dust, etc., and preventing the occurrence of fires, etc. Prevented.

If a water tank is installed so that the left and right sides are balanced after the counterweight provided at the rear end of the revolving upper structure, it is possible to easily add more water tanks.

By making the counterweight higher in specific gravity than general equipment and creating a space for the water tank, it is possible to increase the capacity of the water tank without increasing the size of the excavator body.

"Example" Hereinafter, various embodiments of the present invention will be described based on the drawings.

1 to 4 show a first embodiment of the present invention.

The power excavator IO has an upper rotating body 1 on a lower traveling body 11.
A mast 20 extends from the upper revolving body 15 and supports the rotating upper structure 15 .

The lower traveling body 11 is constructed by rotating a crawler 14 interposed between a rolling shaft 12 and a drive wheel 13. The upper revolving body 15 includes a counterweight 17 at the rear end of a body 16 housing an engine and the like to balance the mast 20, and a cabin 18 provided with a driver's seat is installed on the body 16.

The mast 20 includes a boom 21 located on the base side that can be driven to raise and lower back and forth, and a boom 21 located at the tip of the boom 21.
There are various working devices such as a ripper, a breaker, and a crusher, which are comprised of an arm 25 that can be bent and driven relative to the device 1, and a packet 28 is equipped at the end of the arm 25 as a working device.

The boom 21 has a boom cylinder 22 for raising and lowering it.
22 and the cabin 1B, an arm cylinder 23 for bending the arm 25 is installed between the boom 21 and the arm 25, and a packet cylinder 24 for driving the packet 28 is also provided. .

The body 16 of the upper revolving body 15 is equipped with a water tank 30 located behind the vicinity of the rotation center 0 so that the left and right sides are balanced. A water guiding system 40 is provided.

That is, as can be seen in FIGS. 1 and 4, the water tank 30 is formed along the counterweight 17 at the rear end of the body 16 of the upper revolving body 15 so that the left and right sides are balanced, and is welded to the counterweight 17. are connected, and the inside is partitioned into compartments by partition plates 31a, 31b...
Water holes 32a are provided at the lower ends of the partition plates 31a, 31b...
.

32b... are formed with notches, and the upper end has a ventilation hole 33a,
33b-... are notched.

Furthermore, a removable lid 3 is provided on the top plate 34 of the water tank 30.
A water supply port 35 having a diameter 5a is provided, and a water intake pipe 36 is attached by a mounting plate 36a. Further, a faucet 37 is provided at the bottom of the water tank 30.

The lid 35a of the water supply port 35 has a small communication port 35b with the outside air.
The lower end of the water intake pipe 36 extends slightly above the bottom of the water tank 30, and a strainer 36b or a suction port is installed to prevent dust from being sucked in.

The capacity of the water tank 30 is grade 10, and the packet capacity is 0.4.
When a 10-inch power excavator was equipped with a water tank approximately 30 centimeters thick after a 17-inch counterweight, a capacity of about 600 centimeters was obtained.

The water conveyance system 40 includes a water intake pipe 36 and a suction hose 4.
A discharge hose 43 from the water supply pump 42 is connected to a control operation unit 50 provided near the cabin 1B.

The control operation unit 50 is composed of two branch pipes 51 and 52 with flow control valves 53 and 54, respectively.
4 is provided with operating cocks 53a and 54a so that they can be operated from the driver's seat in the cabin 18.

A water guide hose 44.45, which constitutes the water guide system 40 and extends from the boom 21 of the mast 20 to the arm 25, is connected to the branch pipe 51.52 provided with the flow rate control valve 53,54. The main point of the water guide hose 44.45 is the boom 21. The boom 21 is clamped to the arm 25, and bent portions 44a and 45b are formed at the connection portion between the boom 21 and the arm 25 to accommodate bending.

At the end of the water guide hose 44.45 there is a nozzle device 46.47.
is provided. The nozzle device 46 includes a direct discharge nozzle 46b provided at the end of a bellows tube 46a facing the tip of the arm 25 and whose angle can be changed, and the nozzle device 47 similarly includes a shower head 47b provided at the end of a bellows tube 47a.

Next, the effect will be explained.

The power excavator 1O moves the crawler 14 to move the position using the lower traveling body 11, rotates the upper revolving body 15 around the rotation center 0, raises and lowers the boom and arm 25 that constitute the mast 20, Various work devices such as a bucket 18 attached to the tip of the arm 25 are used to perform work such as excavation, destruction, and transfer.

Counterweight 17 provided at the rear end of the upper revolving body 15
A water tank 30 is installed so that the rear of the excavator 0 protrudes slightly, and the front and rear balance of the power excavator 0 is not adversely affected.

The water stored in the water tank 30 is installed so that the left and right sides are balanced after the vicinity of the rotation center 0 of the upper revolving body 15, so the work can be performed smoothly without adversely affecting the balance of movement and operation during work. It will be held in

That is, the water tank 30 itself has a left-right symmetrical shape, and in a static state, the left and right sides are balanced, so that the left-right balance of the excavator 10 is not adversely affected, and even when the upper revolving structure 15 rotates. Partition plates 31a, 31b
Because the sudden movement of water in the lateral direction is suppressed, dangerous shifts in the center of gravity do not occur.

When watering is required, the water in the water tank 30 is guided by the water supply pump 42 through the water guide system 40 to the tip of the arm 25, and the trees for watering are sucked into the water intake pipe 36 from the strainer 36b at the suction port. The water enters the water supply pump 42, is discharged to the discharge hose 43, and is sent to the control operation section 50.

The control operation section 50 operates the flow rate control valve 5 from the driver's seat provided in the upper revolving structure 15 using operation cocks 53 a + 54 a.
3.54, water is sent out selectively or simultaneously to the branch pipe 51 route and the branch pipe 52 route 4, and the amount of water is adjusted by the manipulated variable.

The water guided to the tip of the arm 25 by the water guide hoses 44, 45 is sprayed directly from a nozzle device 46 or 47 provided at the end of the water guide system 40 to the area to be worked by the working device.

The direct discharge nozzle 46b of the nozzle device 46 can spray water vigorously on the target, and the shower head 47b of the nozzle device 47 can spray water on the target over a wide range, and each is used for an appropriate purpose. In addition, by utilizing the flexibility of the bellows pipes 46a and 47a, the direct discharge nozzle 46b and the shower head 4
The direction of 7b can be set as appropriate.

In this way, the water sprinkling operation can be performed from the driver's seat, which eliminates the need for manpower for the water sprinkling, and even when the upper revolving structure 15 and the mast 20 rotate, no one can come within the range. This is extremely desirable from a safety standpoint. By moistening the object, the generation of dust, etc. is suppressed, and even if there is a fire, the occurrence of fire, etc. is prevented. It can also be used at sites where there is no suitable water tap.

The faucet 37 dispenses water and is used by workers to wash their hands, etc., if necessary.

The IsS diagram shows the second embodiment.

That is, as shown in Fig. 6, there is a general specification in which the counterweight 1 is made of concrete 2 as a core and covered with a steel plate 3, and this embodiment shows an effective configuration in such a case. It is something.

As shown in FIG. 5, the counterweight 17a is made of steel, which has a higher specific gravity than concrete, which is a normal equipment,
A space for a water tank 30a is formed.

There is an advantage that the capacity of the water tank 30 can be increased without increasing the size of the excavator 10.

In the above example, the counterweight was shown as being installed near the water tank, but it may be installed in any other suitable location such as the underside of the body of the power scissor, around the driver's seat, etc., as long as it does not adversely affect the balance. good.

The water pump is not electric; it may use the output of the excavator's engine, and it may be installed in any suitable location in the engine room.

In addition, the water sprinkling control may be performed inside the cabin, and electricity or hydraulics may be used for operation, such as controlling the output of the water pump, or controlling the direction and throttle amount of the nozzle device. You can.

"Effects of the Invention" According to the water sprinkling device for a power shovel according to the present invention, there is no need for manpower to sprinkle water from a distance from the power shovel, and there is no need to pay attention to the person spraying water during the work. Water can be sprayed directly onto the target from the end of the arm without reducing efficiency, making it possible to spray water efficiently and effectively. Furthermore, even if there is no convenient water tap, water can be easily obtained, contributing to improved safety and work efficiency.

[Brief explanation of drawings]

1 to 4 show a first embodiment of the present invention, in which FIG. 1 is a plan view of a power shovel, FIG. 2 is a front view, FIG. 3 is a side view, and FIG. A perspective view of the vicinity of the water tank, FIG. 5, shows a second embodiment, and a vertical cross-sectional view of the vicinity of the water tank, and FIG. 6 is a vertical cross-sectional view of the counterweight of a conventional power shovel. 10... Power shovel 11... Lower running body 1
5... Upper revolving body 16-... Body 17...
・Counterweight 18...Cabin 20...Mast 21...Boom 25...Arm
28...Packet 30...Water tank
31a, 31b--Partition plates 32a, 3
2 b'' Water inlet 33 a, 33 b-... Vent port 35... Water supply port 36... Water intake pipe 37... Faucet
40-... Water conveyance system 41... Suction hose
42-...Water pump 43...Discharge hose 4
4.45... Water guide hose 46.47... Nozzle device 50-... Control operation section 51.52-... Branch pipe 5
3.54-...Flow control valves 53a, 54a...Operation cocks Fig. 4 Fig. 5 Fig. 6

Claims (1)

[Scope of Claims] 1. A power supply comprising an upper rotating body supported on a lower traveling body, a mast consisting of a boom on the base side and an arm at the tip extending from the upper rotating body, and a working device being equipped at the tip of the arm. A water sprinkling device for an excavator includes: a water tank installed so that left and right sides are balanced behind the vicinity of the rotation center of the upper revolving body; and a water tank arranged so as to lead water from the water tank to the tip of the arm, and a water supply pump and a terminal end. A water sprinkling device for a power shovel, comprising: a water guide system having a nozzle device; and a control operation unit provided near a driver's seat provided in the upper revolving body to adjust the amount of water, etc. in the water guide system. 2. A water sprinkling system for a power shovel comprising an upper rotating body supported by the lower traveling body, a boom at the base and an arm at the tip extending from the upper rotating body, and a working device installed at the end of the arm, wherein the upper rotating body A water tank equipped so that the left and right sides are balanced after a counterweight provided at the rear end, and a water guide arranged to guide water from the water tank to the tip of the arm, and having a water supply pump and a nozzle device at the end. A water sprinkler system for a power shovel, comprising: a control operation unit provided near a driver's seat provided in the upper revolving structure and adjusting the amount of water in the water conveyance system. 3. The water sprinkling device for a power shovel according to claim 1 or 2, characterized in that the counterweight has a higher specific gravity than normal equipment to form a space for a water tank.