JP2970990B2 - Wall treatment 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 wall surface treatment machine suitable for removing bulk materials such as ore, coal, chips, and the like that have adhered to and accumulated on an inner wall surface or a shelf of a hydraulic excavator in a cargo handling operation.

[0002]

2. Description of the Related Art In Japanese Utility Model Publication No. 4-109949, a scraping plate is mounted instead of a bucket at the tip of a front working machine of a hydraulic shovel in which an upper revolving body is rotatably provided on a lower traveling body. A high-pressure water injection nozzle is provided on the scraping plate,
As a means for supplying water to the nozzle, an adhering matter removing apparatus having a water tank provided on the upper revolving unit, a water pump for supplying water from the water tank to the high-pressure water injection nozzle, and a hydraulic motor for driving the water pump. It is shown.

[0003] The water tank is fixed to the counter weight position of the upper revolving structure by welding or the like. The water pump and the hydraulic motor are provided as one assembly in the middle of the upper revolving structure separately from the water tank. Installed.

FIG. 11 is a block diagram showing an outline of the attached matter removing apparatus described in this publication. A hydraulic pump 2 is driven by an engine 1 mounted on a hydraulic excavator body, and discharge from the hydraulic pump 2 is performed. The supplied pressure oil is supplied by a control valve 3 to a hydraulic cylinder 4 for operating a front work machine (boom, arm, scraping plate) or a hydraulic motor 5 for driving a water pump.

A water pump 6 driven by a hydraulic motor 5
Supplies high-pressure water to a high-pressure water injection nozzle 8 from a water tank 7 integrated with the rear part of the upper revolving unit, and removes coal and the like attached to the inner wall surface of the ship by the high-pressure water injected from the nozzle 8.

As described above, since the water tank is integrated with the rear part of the upper revolving structure by welding or the like, the conventional excavated matter removing apparatus requires the unloader of the hydraulic excavator body to supply water to the water tank. , Or carry it out to the water supply facility on the ground and supply water to the attached water tank, or insert a long hose into the ship from the water supply facility on the ground and supply water to the water tank of the hydraulic excavator body waiting on the ship Like that.

[0007]

When a hydraulic excavator is lifted, for example, about 1 ton of water is replenished.
As we raise and lower the hydraulic excavator body of 10 tons,
The handling is not easy and it is difficult to supply water efficiently. Also, when water is supplied by inserting a hose into the ship,
The hose length can reach as much as 70 m, and the handling of long hoses requires more labor and time, resulting in poor efficiency. Furthermore, the water tank integrated with the upper revolving unit is not interchangeable, which also causes a reduction in work efficiency when supplying water.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to improve workability and the like when supplying water to a water tank in a wall treatment machine using high-pressure water.

[0009]

Means for Solving the Problems The invention described in 請 Motomeko 1, the upper swing structure to the lower traveling body is provided pivotably
Hydraulic excavator, front end of front work machine arm
For wall treatment with high pressure water injection nozzle
The high pressure water injection nozzle
Water tank unit for supplying water to
The water tank unit can be attached to and detached from the
A water tank with a water supply
A water pump that pressurizes water to the high-pressure water injection nozzle and an upper part
By a hydraulic source driven by the engine mounted on the revolving superstructure
The hydraulic motor that rotates and operates the water pump is integrated
And two or more suspension points in the water tank
Attach hooks, vertically attach a tank fixing substrate facing the front of the water tank to the rear of the upper revolving structure, and engage a plurality of positioning hooks provided on the upper part of the water tank above the tank fixing substrate. an engagement portion provided in, provided the tank receiving portion for supporting a bottom portion of the water tank at the bottom of the tank fixed substrate, a wall processor configuration in which a tank fixing means and the tank fixed substrate and the water tank.

According to a second aspect of the present invention, an undercarriage is provided.
Hydraulic excavator with a revolving superstructure that can swing freely
High-pressure water injection nozzle at the tip of the arm of the front work machine.
Wall treatment with a wall treatment attachment with a swarf
In the machine, water is supplied to the high-pressure water injection nozzle.
Water tank unit is detachably installed on the upper revolving unit.
The water tank unit receives water from outside.
High-pressure water injection of water in this water tank into a water tank with a mouth
Water pump for pressurizing the nozzle
The water is rotated by a hydraulic source
Install the hydraulic motor that operates the pump integrally
With two or more hanging hooks attached to the water tank
At the rear of the upper revolving structure, a tank fixing board facing the front of the water tank is vertically mounted, and a tank receiving section is provided below the tank fixing board, which is concavely and convexly fitted to the bottom of the water tank by a circular fitting section. This is a wall treatment machine having a configuration in which a tank fixing means is provided on a tank fixing substrate and a water tank.

[0011] The invention described in claim 3, claim 1 or
Or the wall treatment machine described in 2 , wherein a high-pressure water injection nozzle is rotatably provided along with a scraping blade for scraping a substance attached to a work target wall as an attachment for wall treatment.

[0012]

[Action] The invention described in 請 Motomeko 1, water Tankuyuni'
And only two hooks are removed from the upper revolving unit.
Lift the water tank unit using
Water is transported to the water supply facility position. Meanwhile other water
Work can be done with the link unit mounted on the upper
No. In addition, a water pump and hydraulic
The water pump and hydraulic motor on the upper
Saves installation space for the
Minimize trouble with the pump. further,
When placing the water tank on the tank receiving part, the water tank is positioned with respect to the tank fixing board by engaging the plurality of positioning hooks at the top of the water tank with the plurality of locking parts at the top of the tank fixing board. I do. Then, the water tank is fixed to the tank fixing substrate by the tank fixing means.

The invention described in claim 2 is a water tank unit.
Remove only the knit from the upper revolving structure, and suspend
Lift the water tank unit using the
To the water supply facility and supply water. Meanwhile other
Attach the water tank unit to the upper structure
Is also good. In addition, a water pump integrated with the water tank and
Water pump and oil on the revolving superstructure by hydraulic motor
The installation space for the pressure motor is saved and the water tank
Trouble between the pump and the water pump is minimized. Further
When attaching the water tank unit to the upper revolving structure,
When the bottom surface portion of the water tank is fitted into the circular fitting portion of the tank receiving portion, the front side of the water tank is in close contact with the tank fixing substrate, and the water tank is positioned with respect to the tank fixing substrate.
Then, the water tank is fixed to the tank fixing substrate by tank fixing means.

According to a third aspect of the present invention, coal, chips, and the like deposited on a shelf or the like on the wall surface to be worked are scraped off by a blade, and the adhering material on the wall surface is washed away by a water jet ejected from a high-pressure water injection nozzle. .

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to an embodiment shown in FIGS. 1 to 8 and modified examples shown in FIGS.

As shown in FIGS. 1 to 3, the hydraulic excavator in which the upper revolving unit 12 is rotatably provided on the lower traveling unit 11 is provided with the front working machine 13 on the upper revolving unit 12. A wall treatment machine is configured by providing a wall treatment attachment 15 having a high-pressure water injection nozzle 14 as shown in FIG. 2 in place of the original bucket of the hydraulic shovel at the front end of the front work machine 13.

This wall treatment machine employs, as a base machine, a hydraulic shovel provided with a long front work machine 13 in order to perform work at high places inside the ship. The hydraulic excavator employs a bucket with a capacity of 0.25 m ³ and a total weight of 7 tons. In that case, the capacity of the water tank described later is about 1 ton at maximum.

As shown in FIG. 2, the front work machine 13
A boom 22 pivoted vertically by a boom cylinder 21 is pivotally supported by the upper revolving unit 12, and an arm 24 pivoted by an arm cylinder 23 is pivotally supported at the tip of the boom 22. At the tip, the wall processing attachment 15 pivotally supported by a bucket cylinder 25 via a link 26 is pivotally supported. Further, a vehicle body suspension hook 27 is provided on the back surface of the boom 22.

As shown in FIG. 1, a cab 31 is arranged on one side of the front work machine 13 on the upper revolving unit 12, and an engine 32 extends from the rear side of the front work machine 13 to the rear side of the cab 31. A hydraulic source 33 including a hydraulic pump and a hydraulic tank is disposed on one side of the engine 32, and a fuel tank 34 and a tool box are disposed in front of the hydraulic source 33.
35 are located.

A water tank unit 41 for supplying water to the high-pressure water injection nozzle 14 of the wall treatment attachment 15 is detachably provided at a rear portion of the upper swing body 12 as described later.

The water tank unit 41 is provided with a water tank 43 having a water supply port 42 for receiving water from the outside. The water tank 43 sucks water in the water tank and supplies it to the high-pressure water injection nozzle 14 under pressure. The pump 44 is mounted integrally, and this water pump 44
A hydraulic motor 45 that is rotated by pressure oil supplied from a hydraulic source (hereinafter, referred to as a hydraulic pump) 33 driven by the engine 32 and operates the water pump 44 is integrally attached to a side surface of the hydraulic pump.

As described above, the water pump 44 and the hydraulic motor
45 is a water tank that can be used even if there is no place to install on the upper revolving structure 12 and minimizes trouble.
Make the structure built into 43. That is, the water pump 44 and the hydraulic motor 45 integrated with the water tank 43 save the installation space for the water pump 44 and the hydraulic motor 45 on the upper revolving unit 12, and the connection between the water tank 43 and the water pump 44. Minimize trouble occurrence between

FIG. 4 is a piping system diagram of a hydraulic system and a high-pressure water system. A hydraulic pump 33 is driven by an engine 32 mounted on the upper-part turning body 12, and the hydraulic oil discharged from the hydraulic pump 33 is controlled. With the valve 46, the front work machine (boom 22, arm 24, wall treatment attachment 1
5) is supplied to the hydraulic cylinders 21, 23, 25 for operating, or to the hydraulic motor 45 of the water tank unit 41 via the switching valve 47.

The water tank unit 41 connects the hydraulic piping from the hydraulic switching valve 47 to the hydraulic motor 45 via a quick connect coupling 48 and connects to the discharge side of the water pump 44 via a quick connect coupling 49. A water supply pipe to the high-pressure water injection nozzle 14 is connected. When removing the water tank unit 41, the switching valve 47 is closed and the quick connect couplings 48 and 49 are disconnected.

FIGS. 5 to 7 show a tank mounting structure according to the fourth aspect, wherein a water tank 43 is provided at the rear of the upper revolving unit 12. FIG.
The tank fixed substrate 51 facing the front of the tank is vertically mounted by welding or the like, and on the left and right portions of the opposed surface of the tank fixed substrate 51,
The two positioning plates 53 for forming the positioning grooves 52 for restricting the lateral movement of the water tank 43 are welded to each other, and the upper portions 54 of the positioning plates 53 are formed inside the upper cutout grooves 55 of the tank fixing substrate 51. Then, the connecting pins 56 are bent in the directions of expanding each other, and a locking pin 56 as a locking portion is welded between the expanded upper portions 54.

On the other hand, a positioning plate 57 that fits into the positioning groove 52 is also welded to the front surface of the water tank 43, and the upper portion of the positioning plate 57 is bent so as to be bent downward, so that the tank fixing substrate 51 is bent. There are provided a plurality of positioning hooks 58 which engage with the locking pins 56 on the upper part of the head.

Further, a pair of tank receiving portions 61 for supporting the bottom portion of the water tank 43 are formed by welding or the like from the rear end surface of the upper revolving structure 12 which corresponds to the lower portion of the tank fixing substrate 51. The tank receiving portion 61 is configured such that two rain gutter-shaped concave portions 63 are attached to each upper plate portion 62. On the other hand, on the bottom surface of the water tank 43, an inverted semi-cylindrical convex portion 64 to be fitted to each of the concave plate portions 63 is fixed at a corresponding position by welding or the like.

Further, screw holes 66 are provided in the left and right upper portions of the tank fixing substrate 51, respectively, and L-shaped tank fixing plates 67 are attached to the left and right upper surfaces of the corresponding water tanks 43 by welding or the like, and bolts 68 are attached to the tank fixing plates. A tank fixing means for fixing the water tank 43 engaged with the tank fixing substrate 51 by screwing into the screw hole 66 through the insertion hole 69 of the 67 is provided.

As shown in FIG. 6, a vehicle body suspension hook 71 is provided on the upper end surface of
Along with the vehicle body suspension hook 27 provided on the 22, the vehicle body is used as a rope hook when the entire vehicle body is lifted by an unloader or the like via a wire rope.

Similarly, hanging hooks 72 for three-point hanging are attached to the upper surface of the water tank 43 at the left, right and rear portions by welding or the like, and wire ropes hooked on these hanging hooks 72 are attached. By lifting with an unloader or the like, the detachable water tank 43, which has been released, is lifted independently. The hanging hook of this water tank 43 is 2
It may be for point hanging or four point hanging (neither is shown).

FIG. 8 shows an attachment 15 for wall treatment according to claim 6, wherein the high-pressure water injection nozzle 14 can be swiveled by a scraping blade 74 for scraping off an object attached to the wall surface to be worked. It is attached. Scraping blade 74
An edge (spatula) 75 for scraping is attached to the tip of. The edge 75 is formed in a wedge shape from metal or synthetic resin and fitted.

The high-pressure water injection nozzle 14 is provided with a nozzle rotating mechanism 78 such as a rotary actuator or a motor via an abutment 77 inside an attachment body 76 formed in a box shape. A nozzle mounting pipe 14a is swingably provided by 78, and a water supply hose piped from the water pump 44 via the front working machine 13 is connected to the nozzle mounting pipe 14a. The high-pressure water jet nozzle 14 provided at the tip of the nozzle mounting pipe 14a is open to the outside through a water jet port 79 opened over the entire width of the front surface of the attachment body 76.

Next, the operation of the embodiment shown in FIGS. 1 to 8 will be described.

As shown in FIG. 4, a hydraulic pump 33 is driven by an engine 32 mounted on the upper-part turning body 12, and a control valve 46 and a switching valve 47 are driven by the hydraulic pump 33.
Then, the hydraulic motor 45 is driven, and the water pump 44 is rotated by the hydraulic motor 45. The water pump 44 sucks water from a water tank 43 integrated with the rear part of the upper revolving unit 12, supplies high-pressure water to the high-pressure water injection nozzle 14, and uses the high-pressure water injected from the nozzle 14 to Remove coal and the like adhering to etc.

Next, when supplying water to the water tank 43, as shown in FIG. 6, by removing the water tank fixing bolt 68 of the tank fixing plate 67, two or more hanging hooks 72 are used. Only the water tank unit 41 is lifted upward by an unloader or the like so that the tank fixing substrate 51 of the upper rotating body 12 is lifted.
The water tank unit 41 is directly taken out of the ship to the above-ground water supply facility by an unloader or the like, and water is supplied into the water tank 43. In the meantime, another water tank unit may be attached to the tank fixing substrate 51 of the upper swing body 12 to perform the operation. In other words, in order to increase the work efficiency, the same set of water tank units may be separately provided and used alternately.

Next, as shown in FIG.
When a plurality of positioning hooks 58 on the upper portion of the water tank 43 are engaged with a plurality of locking portions 56 on the upper portion of the tank fixing substrate 51 when the The water tank 43 can be easily positioned. In addition, the water tank 43 can be reliably fixed to the tank fixing substrate 51 by the bolt 68.

The wall surface treatment method is as follows: after scraping off coal, chips and the like deposited on the shelf or the like of the wall surface to be worked with the edge 75 of the scraping blade 74 shown in FIG.
The work efficiency is good if the remaining sediment is washed off by the water jet gushing from 14.

The high-pressure water injection nozzle 14 has a nozzle rotating mechanism 78
By remotely controlling the angle, adjusting the angle in a direction different from the scraping blade 74, swinging continuously, etc., by jetting the water jet over a wide range,
Work can be done efficiently.

FIGS. 9 and 10 show an embodiment (modification) of the fifth aspect of the present invention,
A tank fixing board 51 is vertically attached to the rear of the upper revolving unit 12, and a pair of angle members
Numerals 81 project by welding or the like, and a tank receiving plate 82 is integrated between the angle members 81 by welding or the like.
A mortar-shaped saucer portion 83 having a tapered portion is provided.

On the other hand, a mortar-shaped insertion portion 84 having the same shape as the mortar-shaped receiving plate portion 83 and having a taper is formed on the bottom of the water tank 43 by welding or the like. The tapered mortar-shaped saucer portion 83 and the insertion portion 84 are fitted with each other as concave and convex as circular fitting portions, and regulate the front, rear, left and right movements of the water tank 43.

A bolt insertion hole 85 is provided in the angle member 81 and the tank receiving plate 82, and a screw hole 86 is provided in the bottom of the water tank 43. Then, the water tank 43 is bolted using the bolt insertion hole 85 and the screw hole 86 as necessary. Note that this bolt insertion hole 85 and screw hole
86 is not always necessary because it has the following tank fixing means.

Next, the tank fixing means in the embodiment shown in FIG. 9 and FIG. 10 will be described.
91 is attached by welding or the like, and the vehicle body hanging hook 91 is provided with a vertical hook insertion hole 92 for inserting a fixing pin 93 for fixing a water tank, and a pin insertion hole 94 for inserting a fixing pin 93 for fixing the water tank. I have.

Further, a front hook 95 and a rear hook 96 for suspending the three-point tank, which allows the water tank unit 41 to be independently attached and detached, are integrally attached to three places on the upper end surface of the water tank 43 by welding or the like. . Above the front hook 95 for hanging the tank, there is provided a pin insertion hole 97 into which the fixing pin 93 is inserted in conformity with the pin insertion hole 94 of the vehicle body hanging hook 91. Tank hanging wire insertion hole 98 is provided. Rear hook for tank suspension
96 has only a tank hanging wire insertion hole 99.

As described above, the fixing pin 93 is inserted into the pin insertion hole 94 of the vehicle body suspension hook 91 and the pin insertion hole 97 of the front hook 95 for suspending the tank.
By inserting 100 and securing the fixing pin 93,
A simple tank fixing means is constituted.

Then, the mortar-shaped insertion portion 84 at the bottom of the water tank 43 is fitted into the mortar-shaped receiving portion 83 of the tank receiving plate 82,
When these tapered surfaces are fitted into the concave and convex, the front side of the water tank 43 is in close contact with the tank fixing substrate 51 as a whole, and the water tank 43 is positioned with respect to the tank fixing substrate 51. Moreover,
The tank fixing substrate 51 and the water tank 43 are securely fixed by the fixing pins 93. In particular, when the water tank 43 moves up and down,
Since the fitting between the mortar-shaped receiving portion 83 and the mortar-shaped insertion portion 84 may be disengaged, the movement is prevented.

As a method for supplying water to the water tank 43, it is desirable to remove only the water tank unit 43 and lift up only the water tank unit 43 with an unloader or the like and transport it to the water supply facility as in the above embodiment. However, the whole body with the water tank unit 43 mounted is lifted by an unloader or the like and carried out to the water supply facility on the ground to supply water, or a long water supply hose is extended from the water supply equipment on the ground to the ship and waits on the ship Water tank 43 still attached to the aircraft
It does not exclude a system for supplying water to the water supply system or a system for replenishing water by bringing a water supply tank (not shown) close to the water tank 43, and may adopt a suitable water supply system as needed.

[0047]

According to the invention described in 請 Motomeko 1 according to the present invention, water
Water supply equipment by removing only the tank unit from the upper rotating body
The excavator body to the water supply facility position.
Than when transporting by water or receiving water through a long hose
Is easy to handle and can supply water efficiently.
You. Furthermore, the detachability of this water tank unit is
Other water tank unit that was supplied with water
Can be installed, minimizing the loss time required for water supply.
It can be kept to a minimum. Also, water pump on the water tank
And the hydraulic motor are integrated into the water tank
On the other hand, when a water pump, etc. is installed separately on the upper revolving unit
Also saves installation space for water pumps, etc. on the upper rotating body
Can be used effectively and integrated into the water tank
The water pump can pump water efficiently,
Occurrence can be minimized. In addition, two or more points
Of the water tank unit using the hanging hook
Lifted by a loader, etc.
Or, the water tank unit can be easily transported in the opposite direction. Ma
In addition, when the water tank is placed on the tank receiving portion, the positioning hook of the water tank is engaged with the engaging portion of the tank fixing substrate, so that the water tank can be easily positioned with respect to the tank fixing substrate, and the water tank can be easily positioned. Can be reliably fixed to the tank fixing substrate by the tank fixing means.

According to the invention described in claim 2 , the water tank
Link unit is removed from the upper revolving unit, and
Hydraulic excavator body to the water supply facility position
Than when transporting or receiving water through long hoses
Handling is easy and water can be supplied efficiently.
Furthermore, the detachability of this water tank unit is
Attach another water tank unit that has been watered to the upper rotating body
And minimizes the loss time required for water supply.
Can be suppressed. In addition, a water pump and
And the hydraulic motor are integrated, so the water tank
Than when water pumps etc. are installed separately on the upper revolving unit,
Saving the installation space for the water pump etc. on the upper revolving unit
It can be used effectively and integrated with the water tank
Pump can efficiently draw water, causing trouble
Can be minimized. In addition, two or more suspension
Unhook the water tank unit using a hook
Lifted from the upper revolving superstructure to the water supply facility, or
The water tank unit can be easily transported in the opposite direction. Also,
When mounting the water tank unit on the upper revolving unit, the bottom side of the water tank is fitted with the circular fitting of the tank receiving part, so that the front side of the water tank is in close contact with the tank fixing board, and the tank is fixed. The water tank can be easily positioned with respect to the substrate, and the water tank can be reliably fixed to the tank fixing substrate by the tank fixing means.

According to the third aspect of the invention, coal, chips and the like deposited on the shelf or the like on the wall surface to be worked can be efficiently scraped off by the scraping blade, and furthermore, the coal or chips are sprayed from the high-pressure water spray nozzle. The water jet makes it possible to clean off the adhered matter on the wall surface. Further, since the high-pressure water injection nozzle can be turned, the working range of the water jet can be expanded.

[Brief description of the drawings]

FIG. 1 is a plan view showing one embodiment of a wall surface treating machine of the present invention.

FIG. 2 is a front view of the same wall surface treatment machine.

FIG. 3 is a rear side view of the wall surface treating machine.

FIG. 4 is a system diagram of a hydraulic system and a high-pressure water system of the wall surface treatment machine.

FIG. 5 is a rear side view of the airframe with the water tank unit removed from the wall surface treatment machine.

FIG. 6 is a perspective view showing a state where the water tank unit is separated from the wall surface treatment machine.

FIG. 7 is a cross-sectional view showing a state where a water tank unit is mounted on the wall surface treatment machine.

FIG. 8A is a plan view of an attachment for wall surface treatment in the wall surface treatment machine, and FIG. 8B is a cross-sectional view thereof.

FIG. 9 is a perspective view showing a modified example of the water tank unit mounting structure in the wall surface treatment machine in a state where the water tank unit is separated.

FIG. 10 is a partially cutaway front view of the modification of FIG. 9;

FIG. 11 is a system diagram showing a hydraulic system and a high-pressure water system in a conventional wall treatment machine.

[Explanation of symbols]

11 Lower traveling structure 12 Upper revolving structure 13 Front work machine 14 High pressure water injection nozzle 15 Wall treatment attachment 32 Engine 33 Hydraulic pump as hydraulic source 41 Water tank unit 42 Water supply port 43 Water tank 44 Water pump 45 Hydraulic motor 51 Tank fixed Substrate 56 Locking pin as locking part 58 Positioning hook 61 Tank receiving part 68 Bolt of tank fixing means 72 Hanging hook 74 Scratching blade 81, 82 Tank receiving part 83, 84 Mortar-shaped receiving part as circular fitting part And insertion section 93 Fixing pins 95, 96 Hanging hook of tank fixing means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-294978 (JP, A) JP-B-50-12224 (JP, B2) Jiko 4-10949 (JP, Y2) (58) Field (Int.Cl. ⁶ , DB name) B08B 1/00-11/04

Claims (3)

(57) [Claims] An upper revolving structure is provided on a lower traveling structure so as to be freely rotatable.
The excavator is used to move the arm of the front work machine.
At the tip, a wall treatment attachment with a high-pressure water injection nozzle
In the provided wall surface processor Chimento, water Tankuyu for supplying water to the high pressure water jet nozzle
The knit is provided detachably on the upper revolving unit , and the water tank unit has a water supply port for receiving water supply from outside.
High-pressure water injection nozzle
Water pump for pressurizing the
The water pump is rotated by a hydraulic source driven by an engine.
By installing a hydraulic motor that operates the pump
Attach two or more suspension hooks to the water tank, and vertically attach a tank fixing board facing the front of the water tank to the rear of the upper revolving unit. Install the tank fixing board above the tank fixing board. A plurality of locking portions for engaging with the plurality of positioning hooks provided, a tank receiving portion for supporting a bottom portion of the water tank is provided below the tank fixing substrate, and a tank fixing means is provided for the tank fixing substrate and the water tank. wall surface processor characterized by providing. 2. An upper revolving structure is provided on a lower traveling structure so as to be freely rotatable.
The excavator is used to move the arm of the front work machine.
At the tip, a wall treatment attachment with a high-pressure water injection nozzle
In the provided wall surface processor Chimento, water Tankuyu for supplying water to the high pressure water jet nozzle
The knit is provided detachably on the upper revolving unit , and the water tank unit has a water supply port for receiving water supply from outside.
High-pressure water injection nozzle
Water pump for pressurizing the
The water pump is rotated by a hydraulic source driven by an engine.
By installing a hydraulic motor that operates the pump
Attach two or more suspension hooks to the water tank, and vertically attach the tank fixed board facing the front of the water tank to the rear of the upper revolving unit. At the bottom of the tank fixed board, attach the bottom of the water tank. the tank receiving portion of the recess-projection fitting by a circular fitting portion provided, the wall surface processor characterized in that a tank fixing means and the tank fixed substrate and the water tank. As 3. A wall treatment attachment, those attached to the work object wall surface scraping with a blade for to scraping, to claim 1 or 2, characterized in that features pivotally high pressure water jet nozzle The wall treatment machine described.