JPH11117301A - Permanent structural-column scraping machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a permanent structural-column scraping machine, in which scraping tools are selected in response to the adhesive strength of the attachment of a permanent structural-column and the structure, etc. of the permanent structural-column and by which scraping works adapted to a field are conducted. SOLUTION: A rotary type scraping tool 12 consisting of a rotary type wire brush with an actuator and a scraping tool 28 for rough removing are installed as scraping tools. Either of the rotary type scraping tool 12 or the scraping tool 28 for rough removing is mounted rotatably on the front end arm 6 of an articulated arm 5 for a self-advancing type working machine 1 by a hydraulic cylinder 20. The scraping tool 28 under nonuse is fixed beforehand onto the front end arm 6. Scraping works are conducted while electing water from a nozzle 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical column keren machine used for underground excavation work by a reverse striking method for removing extraneous matter adhering to a vertical column.

[0002]

2. Description of the Related Art In the case of underground excavation work for constructing a basement, etc., a pile-shaped timber pillar is buried in the ground, excavation is performed between the timber pillars, excavation is performed, and earth retaining is carried between timber pillars. The reverse striking method is adopted, in which excavation proceeds while laying plates and steel materials for the construction. When such a reverse striking method is carried out, the Keren work for the timber shaft (peeling off the sediment such as soil and bentonite adhered to the timber shaft) is performed in parallel with the excavation and unearthing work of the underground. ing.

[0003] Conventionally, in this keren work, generally, a framed scaffold or an aerial work platform is arranged around a tall pillar, and a worker uses these as scaffolds to form a skin plow, a keel rod, a wire brush, a rag, a hight. This is done using washers and the like.

[0004] However, when the worker performs the kerren work using the above-mentioned various kerane work tools, the framed scaffold or the aerial work vehicle is installed on the underground excavator, so that even if the ground is leveled, the stability as the scaffold is maintained. However, there is a problem in that the work is performed at a high place, and work efficiency is poor.

For the purpose of abolishing such high-altitude work, and to safely and efficiently carry out Keren work of a straight pillar by machine operation on the ground, Japanese Utility Model Laid-Open No. 6-40205 discloses a multi-joint arm of a hydraulic shovel. Is provided with a brush that is rotated by a hydraulic motor at the tip.

[0006]

SUMMARY OF THE INVENTION
As described in Japanese Patent Application Publication No. 05-2005, an excavator in which a rotating brush is attached to the tip of an articulated arm has a plurality of brushes implanted on the surface of a rotating disk, so that the Although it is possible to peel off the attached matter, there is a problem that it is not possible to peel off the relatively hard attached matter or the attached matter that has entered a complicated portion of the surface shape and the uneven portion.

[0007] In view of the above problems, the present invention enables the selection of a scraping tool in accordance with the adhesion strength of the adhered material on the straight pillar, the structure of the straight pillar, and the like. It is intended to provide a pillar keren machine.

It is another object of the present invention to provide a straight-column keren machine having a configuration in which two keren tools can be attached to a multi-joint arm without significantly modifying the multi-joint arm.

It is another object of the present invention to provide a straight-column wrench machine that facilitates the work of replacing a wrench tool.

[0010] Another object of the present invention is to provide a vertical pillar keren machine capable of preventing scattering of dust in kelen work.

[0011]

SUMMARY OF THE INVENTION The present invention relates to a vertical pillar keren machine for removing adhered substances attached to a vertical pillar used in underground excavation work by a reverse striking method. A multi-joint arm for a self-propelled working machine, comprising a rotary type wrench made of a type wire brush and a roughing type wrench made of a claw-shaped member. Characterized in that it is configured to be rotatably mounted on the distal end arm by a hydraulic cylinder (claim 1).

Further, the present invention is characterized in that, in the first aspect, the unused scraping tool among the rotary scraping tool and the roughing scraping tool is fixedly attached to the distal end arm of the multi-joint arm. (Claim 2).

According to a second aspect of the present invention, in the second aspect, the rotary type wrench and the roughing wrench are attached to a distal end arm of a multi-joint arm by a common pin. .

According to a third aspect of the present invention, in the third aspect of the present invention, the bracket of the rotary type tool for pinning the distal end arm has a frame portion with upper and lower openings, and a rotary wire brush outside the frame portion. The actuator is attached, and the roughing tool is rotated around a common pin with the bracket so as to be able to pass through the frame of the bracket (claim 4).

Further, the present invention is characterized in that, in any of claims 1 to 4, a nozzle for spraying water to a portion of the corrugated member is attached to the bracket of the corrugated member (claim 5).

[0016]

According to the present invention, in the case where the adhered substance to the trussed pillar is strong or rough peeling is performed, the roughing tool is attached to the tip arm of the multi-joint arm and rotated by the hydraulic cylinder. Thereby, the roughing scraping tool is rubbed on the surface of the straight pillar to peel off the adhered material of the straight pillar. In the case where the adhesion of the adhered material on the trussed pillar is relatively weak or in the case of finishing work, a rotary type wrench is attached to the distal end arm, and the brush of the rotary type wrench is rotated to perform the cleaning.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view showing one embodiment of a straight-column keren machine according to the present invention in a state where a work is performed by a rotary keren tool. FIG. 2 shows the keren machine of the present embodiment. It is a side view which shows in the state which is performing the operation | work with the roughing tool. Reference numeral 1 denotes a hydraulic shovel, which is an example of a self-propelled work machine. An upper revolving unit 4 is installed on a lower traveling unit 2 via a revolving device 3, and the upper revolving unit 4 swings the articulated arm 5 left and right. Mounted as possible.

The distal arm 6 of the articulated arm 5 has
As shown in FIG. 2, the rotary type tool 12 is mounted in a usable state (that is, a state in which the rotary type tool can be rotated by the hydraulic cylinder 20) to perform the function, or as shown in FIG. Attach the scraping tool 28 in a usable state.

As shown in FIGS. 3A and 3B, the distal end arm 6 has a pin hole 8 for attaching a link 7 and a pin hole 9 for attaching a backhoe bucket. Used as pin holes for mounting 12, 28. On the abdominal surface of the distal arm 6, a bracket 11 having a pin hole 10 for fixing an unused scraping tool is provided.

Reference numeral 12 denotes a hydraulic motor 1 as an actuator.
3 is a rotary type brush which is made of a rotary wire brush attached with 3, and a mounting bracket 15 of the rotary type brush 12 is
The tip arm 6 is attached to the pin hole 9 by a pin 14. As shown in FIG. 4, the bracket 15 has a frame portion 15a having upper and lower openings, and the rotary wrench 12 and the hydraulic motor 13 are mounted outside the frame portion 15a. By rotating a sprocket chain 18 between sprockets 16 and 17 attached to the shafts of the hydraulic motor 13 and the rotary wrench 12, the rotational force of the hydraulic motor 13 is transmitted to the rotary wrench 12.

As shown in FIG. 3 (B), when the rotary type tool 12 is in use, the bracket 15 is mounted on a hydraulic cylinder 20 which is a bucket cylinder of a hydraulic shovel.
Are connected via a link 7 and pins 21 and 22, and a connecting pin 21 between the hydraulic cylinder 20 and the link 7 and the tip arm 6 are connected via a link 23 and a pin 24.

As shown in FIGS. 3A and 3B, the distance a between the mounting pin hole 25 of the bracket 15 and the pin hole 26 connecting the link 7 is determined by the distance between the pin hole 9 of the tip arm 6 and the bracket 11. Equal to the distance b between the pin holes 10 (a =
b) Set. In this example, a roughing scraping tool 28 made of a fork is attached to the pin hole 9 by a pin 14 common to the rotary scraping tool 12 via a bracket 29, and as shown in FIG. The distance c between the pin hole 30 for attachment of the bracket 29 of the clipping tool 28 and the pin hole 31 with the link 7 is also set equal to the distance between the pin holes 9 and 10 (a = c).

By setting the dimensional relationship a = b = c, as shown in FIGS. 1, 3 and 4,
In a state in which the rotary scraping tool 12 is used by being attached to the hydraulic cylinder 20 via the link 7, the rough scraping tool 28 inserts the link 7 connecting pin hole 31 of the bracket 29 into the pin hole 10 of the bracket 11. Pin 3
2 so that the roughing tool 28 can be fixed to the rear surface of the tip arm 6.

On the other hand, as shown in FIGS. 2, 5 and 6, when the roughing tool 28 is used, the roughing tool 28 is fixed as shown in FIG. 3B. Pin 32
, The pin 22 is removed from the bracket 15 of the rotary wrench 12, and the roughing wrench 28 and the rotary wrench 12 are removed.
Are turned to the other side, and the roughing scraping tool 28 and the bracket 29 of the rotary scraping tool 12 together with the bracket 29 are rotated.
5, the bracket 15 of the rotary wrench 12 is fixed to the bracket 11 using the pin 32, and the bracket 2 of the roughing wrench 28 is fixed.
Reference numeral 9 connects the pin 22 by inserting the pin 22 into the pin hole 31 and the pin hole of the link 7. By the same operation, it is possible to change the use state of the rough cutting tool 28 in FIG. 5 to the use state of the rotary tool 12 in FIG. 3 without attaching and detaching the pin 14.

As described above, if the rough scraping tool 28 or the rotary scraping tool 12 is housed on the abdominal surface of the distal arm 6, the other scraping tool does not hinder the work when the scraping operation is performed by one of the scraping tools. In addition, the replacement work is easy because the replacement tool is at a short distance.

In the present invention, the non-used keren tool 12 is used.
Or 28 is fixed to the abdominal surface of the distal arm 6,
A bracket having two pin holes corresponding to the two pin holes of the brackets 15 and 29 is attached to the abdominal surface of the distal end arm 6, and two unused fixing pins are used to remove the unused tool 12 or 28. May be fixed to the bracket. However, as in this embodiment, each bracket 15 of the unused scraper 12 (or 28) is used.
The base end of (or 29) is fixed to the bracket 29 (or 1) of the tool 28 (or 12) in use by the pin 14.
5) By adopting a structure that is commonly attached to the tip arm 6, the number of pins for fixing unused scraping tools can be reduced, the modification of the tip arm 6 can be small, and the bracket can be used. There is an advantage that it can be small.

In the actual operation, first, FIGS.
As shown in FIG. 6, rough roughening work of the deposit on the straight pillar 35 is performed using the roughing roughening tool 28, and then, as a finish, as shown in FIGS. 1, 3, and 4, Using the rotary type scraping tool 12, finer scraping work is performed. The cleaning operation using the rotary cleaning tool 12 is performed by rotating the rotary cleaning tool 12 with a hydraulic motor 13.

When performing such cleaning work, a nozzle 36 is attached to the bracket 15 and, as shown in FIG.
The water supplied by the hose 8 through the hose 39 is supplied to the nozzle 36.
It is more preferable to spray dust on the release surface to prevent generation of dust from the release surface.

The rotary scraping tool 12 is used to peel off the relatively weakly attached matter, and the roughing scraping tool 28 is used to peel off the relatively firmly attached matter. It may be replaced according to the situation at the site.

FIG. 7 shows a roughing scraping tool 28 different from the above.
A shows an example in which A is attached to a bracket 29. The roughing tool 28A is a single claw-shaped member made of a steel material. As shown in FIG. It is suitable for use when peeling off the deposits on the surface 35b of the deep part of. In addition, various types of roughing scraping tools 28 can be used. In addition, the mounting structure of the rotary wrench 12 can be variously changed. In addition, the structure of the straight pillar to be used in the present invention is not limited to the structure shown in the embodiment, but includes various types used as pillars, such as H-shaped steel. In addition, as the working machine body used in the present invention, a self-propelled type other than a hydraulic shovel can be used, and if it has an articulated arm, it includes a telescopic arm, a refill arm, and the like. Is also good.

[0031]

According to the first aspect of the present invention, the rotary tool includes a rotary tool that includes a rotary wire brush with an actuator and a rough tool that includes a claw member. And the roughing tool are attached to the tip of the multi-joint arm of the self-propelled working machine so as to be rotatable by a hydraulic cylinder in a workable state with compatibility. In carrying out the work, by selecting and using a suitable scraping tool from the roughing scraping tool and the rotary scraping tool, a suitable scraping tool according to the structure of the on-site straight pillar and the situation of the adhered substance is selected. Work can be done.

According to the second aspect of the invention, of the rotary type tool and the roughing type tool, the used type tool is rotatable up and down via a link by a hydraulic cylinder provided on the tip arm of the multi-joint arm. Since the pinned and unused keren tool is fixedly attached to the distal end arm of the multi-joint arm, parts can be replaced at a short distance, and the replacement can be performed efficiently and easily.

According to the third aspect of the present invention, since the base ends of the rotary type and the roughing tool are attached to the distal end arm of the articulated arm with a common pin, the number of pins is not increased. In addition, the both ends can be mounted without significantly modifying the tip arm, and the unused bracket for mounting the scraper provided on the tip arm can also be made small.

According to a fourth aspect of the present invention, the bracket of the rotary type tool for pinning the distal end arm has a frame with upper and lower openings, and the rotary wire brush and its actuator are mounted outside the frame. The roughing tool has a size and an attachment structure that can pass through the frame of the bracket when rotating about the pin common to the bracket, so that the tool is not removed from the tip arm. It can be replaced, making the replacement work easier and faster.

According to the fifth aspect, since a nozzle for spraying water to the keeling part is attached to the bracket of the kettle tool, it is possible to suppress the generation of dust during the work.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a vertical column keren machine according to the present invention.
It is a side view shown in the state where work is being performed by the rotary type tool.

FIG. 2 is a side view illustrating a state in which the work machine of the present embodiment is working with a roughing work tool.

FIG. 3A is a side view showing an arrangement of pin holes of a tip arm in the present embodiment, and FIG. 3B is a side view of a tip portion of the multi-joint arm showing a use state of a rotary type tool in the present embodiment. is there.

FIG. 4 is a plan view showing the keel attachment mounting structure of FIG. 3B together with a straight pillar.

FIG. 5 is a side view of the distal end portion of the multi-joint arm showing a use state of the roughing tool in this embodiment.

FIG. 6 is a plan view showing a mounting structure of the keel fitting of FIG. 5 together with a straight pillar.

FIG. 7 is a diagram corresponding to FIG. 5, showing another example of a roughing scraping tool used in the present invention.

FIG. 8 is a plan view of FIG. 7;

[Explanation of symbols]

1: hydraulic excavator, 2: undercarriage, 3: turning device,
4: upper revolving superstructure, 5: articulated arm, 6: tip arm,
7, 23: link, 8, 9, 10, 25, 26, 30,
31: Pin hole, 11: Bracket, 12: Rotary wrench, 13: Hydraulic motor, 14, 21, 22, 24, 3
2: pin, 15: bracket, 15a: frame, 16, 1
7: sprocket, 18: sprocket chain, 2
0: Hydraulic cylinder, 28, 28A: Rake tool for roughing, 2
9: bracket, 35: straight pillar, 36: nozzle, 37:
Water tank, 38: pump, 39: hose

Continuation of the front page (72) Inventor Akio Iwasaki 2-6-1 Otemachi, Chiyoda-ku, Tokyo Inside the Hitachi Construction Equipment Co.

Claims (5)

[Claims] Claims: 1. A straight pillar kelen machine for removing adhered matter attached to a straight pillar used in underground excavation work of a reverse striking method, wherein a rotary keren comprising a rotary wire brush with an actuator as a keren tool. Tool and a roughing scraping tool consisting of a claw-shaped member. Either a rotary tool or a roughing scraping tool is attached to the tip arm of the multi-joint arm of the self-propelled work machine by a hydraulic cylinder. A straight pillar keren machine characterized in that it is rotatably mounted. 2. The straight pillar according to claim 1, wherein, among the rotary type tool and the roughing tool, an unused tool is fixedly attached to a distal end arm of the multi-joint arm. Keren machine. 3. The vertical-column wrench machine according to claim 2, wherein the rotary wrench tool and the roughing wrench tool are attached to a tip arm of an articulated arm with a common pin. 4. A rotary type brush according to claim 3, wherein the bracket of the rotary type tool to be pinned to the distal end arm has a frame with upper and lower openings, and a rotary wire brush and its actuator are mounted outside the frame. A rough-column-type scraper machine, characterized in that the roughing scraper tool is configured to be able to pass through the frame of the bracket by rotating about a pin common to the bracket. 5. The vertical-column wrench machine according to claim 1, wherein a nozzle for spraying water to the wrench portion is attached to the bracket of the wrench tool.