JP2000352069A - Suction drilling machine - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a suction drilling machine capable of easily replacing a drilling attachment. SOLUTION: A first arm 5 is attached to an excavator body 4 so as to be vertically swingable, a second arm 6 is attached to the first arm 5 so as to be able to swing vertically, and an attachment for excavation is attached to the second arm 6, for example. The bucket 7 is detachably attached to the excavator A. The suction part (steel pipe 21) of the suction hose 20 is
The suction excavating machine is mounted on the arm 6 so as to be able to swing up and down by a moving mechanism 22. The excavated earth and sand can be suctioned and conveyed by a suction hose 20, and the bucket 7 can be easily connected to a plow or a breaker without removing a suction portion. Make it exchangeable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction excavation machine which is provided with an excavator and a suction hose and which is used for excavating an underground hole such as a deep foundation or a shaft, which sucks and conveys excavated earth and sand with a suction hose.

[0002]

2. Description of the Related Art A suction excavating machine disclosed in Japanese Patent Application Laid-Open No. Sho 62-235126 is known. This suction and excavation machine includes an excavator having a bucket and a suction hose connected to the bucket, and sucks and conveys earth and sand excavated by the bucket with the suction hose.

[0003]

It is conceivable to excavate an underground hole using the above-mentioned suction excavating machine. However, when excavating an underground hole, it is preferable to use an attachment for excavation according to the soil quality. . For example, a breaker is used for bedrock, a plow is used for hard soil, and a bucket is used for soft soil.

[0004] However, since the suction hose is connected to the bucket in the above-mentioned suction excavating machine, when replacing the bucket with a breaker, a plow or the like, the suction hose must be removed from the bucket and connected to a breaker, a plow or the like. Become. For this reason, replacement work of excavation attachments such as buckets, breakers, and plows is troublesome. In particular,
Since the inside of the underground hole is small and the number of workers is small, the time required for these desorption operations is one of the causes of a reduction in the amount of work.

Therefore, an object of the present invention is to provide a suction excavating machine capable of solving the above-mentioned problems.

[0006]

A first aspect of the present invention is an excavator A in which an arm is attached to an excavator main body 4 so as to swing up and down, and an excavation attachment is detachably attached to the arm, and a suction device. The suction excavating machine is provided with a suction hose 20 for conveyance, and a suction part of the suction hose 20 is attached to the arm so as to be vertically movable by a moving mechanism 22.

According to the first aspect, the earth and sand excavated by the excavation attachment of the excavator A can be suctioned and conveyed by the suction hose 20. The suction part of the suction hose 20 moves upward and downward with respect to the arm by the moving mechanism 22, so that when excavating with the attachment for excavation, the suction part can be set at the upper position so as not to hinder the excavation, and the excavated soil, etc. Can be sucked and conveyed by pressing against the excavated earth and sand with the suction part being at the lower position.

Since the suction portion of the suction hose 20 is attached to the arm by the moving mechanism 22, the attachment for digging can be removed and another attachment for digging can be attached without removing the suction portion, and the attachment for digging can be replaced. Work is easy.

According to a second aspect of the present invention, an arm is attached to the excavator main body 4 so as to be vertically swingable, and an attachment for excavation is detachably attached to the arm so that the excavation attachment cylinder 9 and an attachment link can be used for excavation posture and non-excavation posture. An excavator A, which is mounted so as to be able to swing up and down freely, and a suction hose 20 for suction conveyance, wherein a suction part of the suction hose 20 is mounted on the attachment link.

According to the second aspect, the earth and sand excavated by the excavation attachment of the excavator A can be suctioned and conveyed by the suction hose 20. Since the suction portion of the suction hose 20 is attached to the attachment link, the digging attachment can be removed and another digging attachment can be attached without removing the suction portion, and the work of exchanging the digging attachment is easy.

According to a third aspect of the present invention, there is provided the suction hose 20 according to the second aspect, wherein the excavation attachment is in an excavation posture.
Suction excavation in which the suction part of the suction hose 20 is located above the excavation part of the attachment for excavation, and the suction part of the suction hose 20 is located below the excavation part of the attachment for excavation when the attachment for excavation is in the non-excavation posture. It is a machine.

According to the third aspect, the suction portion of the suction hose 20 is located above the excavation portion when the attachment for excavation is in the excavation posture.
The suction part does not get in the way. Further, when the attachment for excavation is in the non-excavation posture, the suction portion of the suction hose 20 is located below the excavation portion, so that the attachment for excavation does not become an obstacle when sucking and transporting excavated earth and sand.

According to a fourth aspect of the present invention, an excavator A is attached to the excavator main body 4 so as to swing up and down, and the excavator A is attached to the arm so as to excavate by swinging an attachment 50 for excavation. Wherein the suction portion of the suction hose 20 is attached to the arm, and the suction portion is located on the digging direction side within the digging width of the attachment 50 for digging. Excavating machine.

According to the fourth aspect, earth and sand excavated by swinging the excavation attachment 50 in the excavation direction are scraped by the suction portion of the suction hose 20. The soil and the like are sucked and conveyed by the suction hose 20. Thus, while excavating with the excavation attachment 50, the excavated soil and the like can be continuously suctioned and conveyed by the suction hose 20, and the excavation work and the operation of transporting the excavated soil and the like can be efficiently performed.

Further, since the suction portion of the suction hose 20 is attached to the arm, the attachment for digging can be removed and another attachment for digging can be attached without removing the suction portion, and the work of replacing the attachment for digging can be performed. Easy.

According to a fifth aspect of the present invention, in the fourth aspect, the excavation attachment 50 has a shape capable of scooping excavated matter, and a suction portion of the suction hose 20 is attached to the arm by a moving mechanism 22 so as to be vertically movable. The suction unit is a suction and excavation machine facing the attachment for excavation 50.

According to the fifth aspect of the present invention, the excavated object is scooped by the excavation attachment 50, and the suction unit is moved downward by the moving mechanism 22 in this state, whereby the suction unit can be pressed against the excavated object. . Because of this, by digging as described above, the suction hose 20
When a large rock that cannot be sucked by the suction unit is excavated, the rock can be scooped by the excavation attachment 50 and held so as not to fall by the suction unit.

Therefore, large rocks do not fall when the excavation attachment 50 is moved to a position different from the excavation position by rotating the excavation attachment 50 together with the arm.

According to a sixth aspect of the present invention, in the fifth aspect, the excavation attachment 50 includes a bucket 51 and an excavation claw 52 adjacent to each other at an interval, and the bucket 51 and the excavation claw 52 can scoop an excavated object. It is a suction and excavation machine with various shapes.

According to the sixth aspect of the present invention, when excavating as described above, when excavating a large soft rock or earth and sand mass that cannot be sucked by the suction portion of the suction hose 20, the mass of the soft rock or earth and sand is excavated. It is possible to scoop them up by the bucket 51 and the excavating claw 52, move the suction part downward by the moving mechanism 22, and press the suction part against the soft rock and the mass of the earth and sand to break them down.

As described above, a large mass of soft rock and earth and sand can be broken into small pieces using the excavation attachment 50 and the suction portion of the suction hose 20, and the broken piece can be sucked and conveyed by the suction hose 20.

According to a seventh aspect of the present invention, there is provided a suction excavating machine according to the fifth aspect, wherein the excavating attachment 50 has a fork shape having a plurality of excavating claws 52 adjacent to each other at intervals.

According to the seventh aspect, by excavating as described above, when excavating a large soft rock or a mass of earth and sand that cannot be sucked by the suction portion of the suction hose 20, the mass of the soft rock and the earth and sand is reduced. Scooping with a plurality of excavating claws 52, the suction unit is moved downward by the moving mechanism 22, and the suction unit is
It is possible to break them down by pressing them against the mass of earth and sand.

As described above, the large soft rock and the mass of the earth and sand can be broken into small pieces using the excavation attachment 50 and the suction portion of the suction hose 20, and the broken pieces can be sucked and conveyed by the suction hose 20.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, an upper revolving unit 3 is pivotally mounted on a lower traveling unit 1 by a revolving mechanism 2 to form an excavator body 4. A first arm 5 is attached to the upper swing body 3 so as to be vertically swingable, and a second arm 6 is connected to the first arm 5 so as to be vertically swingable. An excavation attachment, for example, a bucket 7 is detachably mounted on a tip end of the second arm 6 with a pin 8 so as to be detachable and swingable up and down, thereby forming a self-propelled excavator A of a top-turn type. .

A first attachment link 11 and a second attachment link 12 are connected to a piston rod 10 of an attachment cylinder 9 for excavation attached to the second arm 6 by a pin, and the first attachment link 11 is connected to the second arm 6. The second attachment link 12 is connected to the bucket 7 so as to be vertically swingable by a pin. The second arm 6 is vertically swung by an arm cylinder 13. The first arm 5 is vertically swung by a cylinder (not shown). A canopy 15 for protecting a cab (seat) 14 is attached to the upper swing body 3.

The excavator A travels along the bottom of the underground hole B such as a deep groove, turns, swings up and down the first and second arms 5 and 6, and swings up and down the bucket 7 to move inside the underground hole B. Excavate. The excavated earth and sand is sucked and conveyed to the ground by the suction hose 20. That is, the suction hose 20 is connected to a hopper (not shown) installed on the ground, and air in the hopper is sucked by a blower (not shown). This allows the suction hose 20
The inside becomes negative pressure, and the excavated earth and sand are sucked and conveyed to the hopper by the suction hose 20.

The end of the suction hose 20 is connected to a steel pipe 21, which forms a suction part of the suction hose 20. The steel pipe 21 is attached to the second arm 6 so as to be vertically movable by a vertical movement mechanism 22. When the steel pipe 21 is moved downward with respect to the second arm 6, a steel pipe tip 21a is formed.
Is in contact with the excavated earth and sand, and when the steel pipe 21 is moved upward with respect to the second arm 6, the steel pipe tip 21 a is separated from the excavated earth and sand so that the bucket 7 does not hinder the excavation operation.

The moving mechanism 22 includes a bracket 23 bolted to the side surface of the second arm 6,
And a cylinder 25 connected to one of the links 24 and the bracket 23, and the pair of links 24 are connected to the steel pipe 21 so as to be vertically swingable and parallel to each other. Form a link. The cylinder 25 is connected to the bracket 23 by a pin 23a so as to be vertically swingable.

As described above, by expanding and contracting the cylinder 25, the steel pipe 22 moves up and down via the pair of links 24. In addition, since the bracket 23 forming the moving mechanism 22 is bolted to the side surface of the second arm 6, the steel pipe 21 (the suction portion of the suction hose 20) can be easily attached to an excavator having a normal bucket.

The moving mechanism 22 may have the shape shown in FIGS. 3, 4, and 5. A short outer steel pipe 30 is attached to the side surface of the second arm 6, and a long inner steel pipe 3 is mounted inside the outer steel pipe 30.
1 is slidably inserted into the outer steel pipe 30 and the inner steel pipe 3.
The telescopic cylinders 32 are connected to form a telescopic steel pipe. The suction hose 20 is inserted into and fixed to the inner steel pipe 31, and a distal end portion 20 a (a suction part) protrudes below the inner steel pipe 31. Or the tip 20a of the suction hose 20
Need not be fixed to the upper end of the inner steel pipe 31 and project therefrom.

When the expansion / contraction cylinder 32 is extended and the inner steel pipe 31 is slid upward, the suction portion of the suction hose 20 moves upward as shown in FIG. When the telescopic cylinder 32 is contracted and the inner steel pipe 31 is slid downward, the suction portion of the suction hose 20 moves downward as shown in FIG.

Next, a second embodiment of the present invention will be described. As shown in FIG. 6, a steel pipe 21 (suction unit) connected to the distal end of the suction hose 20 is connected to the second attachment link 1.
Attach to 2. The drilling attachment is a plow 40. As shown in FIG. 7, the plow 40 connects a pair of mounting vertical plates 41 at intervals by a connecting plate 42, and fixes a drilling plate 43 over the pair of mounting vertical plates 41. 43 is a shape in which a digging blade 44 is attached.

The distal end of the second arm 6 and the second attachment link 12 protrude between the pair of mounting vertical plates 41 and are connected by a first pin 45 and a second pin 46, respectively.
The steel pipe 21 is opposed to the space between the pair of mounting vertical plates 41, the lower end 21a of the steel pipe 21 is substantially the same height as the second pin 46, and the plow 40 is downwardly excavated as shown by a solid line in FIG. In this case, the position is higher than the excavation portion (excavation blade 44) and does not hinder the excavation. When the plow 40 is in an upward non-excavation position as shown by the imaginary line in FIG. 6, the plow 40 is located below the excavated portion (excavation blade 44), and the lower end 21 a of the steel pipe 21 can be pressed against the excavated earth and sand. The plow 40 does not hinder the suction of the excavated earth and sand by the suction hose 20.

The bucket 7 shown in FIG. 1 may be attached to the second arm 6 shown in FIG. 6, or the plow 40 shown in FIG. 6 may be attached to the second arm 6 shown in FIG. Further, a breaker may be attached to the second arm 6 in FIGS.

Next, a third embodiment of the present invention will be described. As shown in FIGS. 8 and 9, an upper revolving unit 3 is pivotally attached to a lower traveling unit 1 by a revolving mechanism 2 to form an excavator body 4. A first arm 5 is attached to the upper swing body 3 so as to be vertically swingable, and a second arm 6 is attached to the first arm 5.
Are swingably connected up and down. An excavation attachment 50 is attached to the tip of the second arm 6 with a pin 8 so as to be detachable and swingable up and down, thereby forming a self-propelled and top-turning excavator A.

A first attachment link 11 and a second attachment link 12 are connected to a piston rod 10 of an attachment cylinder 9 for excavation attached to the second arm 6 by a pin, and the first attachment link 11 is connected to the second arm 6. The second attachment link 12 is connected to the excavation attachment 50 so as to be vertically swingable by a pin. The second arm 6
Is vertically swung by the arm cylinder 13. The first arm 5 is vertically swung by a cylinder (not shown).
A canopy 1 for protecting the cab 14 is provided on the upper revolving unit 3.
5 is attached.

The excavator A travels along the bottom of the underground hole B such as a deep groove, turns, swings up and down the first and second arms 5, 6 and swings the excavation attachment 50 up and down, thereby excavating the underground hole B. Dig inside. The excavated earth and sand is sucked and conveyed to the ground by the suction hose 20. That is, the suction hose 20 is connected to a hopper (not shown) installed on the ground, and air in the hopper is sucked by a blower (not shown). As a result, the inside of the suction hose 20 becomes a negative pressure, and the excavated earth and sand is sucked and conveyed to the hopper by the suction hose 20.

The end of the suction hose 20 is connected to a steel pipe 21, which forms a suction part of the suction hose 20. The steel pipe 21 is attached to the second arm 6 so as to be vertically movable by a vertical movement mechanism 22. The steel pipe 21 is located within the digging width H of the digging attachment 50 and on the digging direction side of the digging attachment 50. That is, the excavation attachment 50 excavates by swinging toward the excavator body 4, and the steel pipe 21 is located closer to the excavator body 4 than the excavation attachment 50.

As described above, while excavating with the excavation attachment 50, the excavated earth and sand can be conveyed by the suction hose 20 through the steel pipe 21. When excavation is performed by rocking the excavation attachment 50 in a direction away from the excavator body 4, the steel pipe 21 is positioned on the side of the excavation attachment 50 opposite to the excavator body 4.

As shown in FIG. 9, the first boom 5 and the second boom 6 are shifted to the left and right one side from the cab 14. The suction hose 20 and the steel pipe 21 are shifted to the left and right one side relative to the cab 14. As a result, the first and second booms 5, 6, the suction hose 20, and the steel pipe 21 do not obstruct the operator's front view in the cab 14. In particular, since the suction hose 20 may swing during suction transfer, if the suction hose 20 is located in front of the cab 14, the operator's front view is obstructed.

As shown in FIGS. 10, 11 and 12, the excavation attachment 50 has a bucket 51 and an excavation claw 52 adjacent to each other at an interval larger than the diameter of the steel pipe 21. The bucket 51 is integrally formed with a back plate 53 and a bottom plate 54 having a substantially C-shaped cross section,
3. One side plate 55 and the other side plate 56 fixed to both end surfaces of the bottom plate 54, a connecting cross member 57 fixed to the upper edge of the one side plate 55, the upper edge of the other side plate 56, and the upper edge of the back plate 53. , A pair of vertical mounting plates 58 fixed to the back plate 53, a digging blade 59 mounted on the tip edge of the bottom plate 54, and the like.

The connecting cross member 57 penetrates the other side plate 56 and projects laterally.
2 is fixed. The excavation claw 52 and the other side plate 56 are separated in the left-right direction. The lower surface 52a of the excavation claw 52 is substantially C-shaped along the back plate 53 and the bottom plate 54, and the upper surface 5a thereof.
2b is also substantially C-shaped, and this excavation claw 52 is substantially C-shaped.

The upper surface 56a of the other side plate 56 is
The excavated material such as rocks can be placed over the other side plate 56 and the excavation claw 52 in a substantially C-shape along the upper surface 52b.
The upper surface 55a of the one side plate 55 is the upper surface 56a of the other side plate 56.
This one side plate 55 prevents spillage of earth and sand.

As shown in FIG. 11, the steel pipe 21 is located between the other side plate 56 of the bucket 51 and the excavation claw 52. As shown in FIGS. 8 and 12, when the bucket 51 is in the scooping posture in which the bottom plate 54 is at a substantially horizontal position, the steel pipe 21 is in the digging direction length L of the digging attachment 50 (the bucket 51, the digging attachment 50). (The length of the claw 52 in the swinging direction)
Located within.

Next, the moving mechanism 22 will be described. As shown in FIGS. 12 and 13, a first vertical plate 60 is fixed to one left and right side surface 6a of the second arm 6 with bolts, and a second surface of the second arm 6 (a surface on the excavator body 4 side) 6b The vertical plate 61 is fixed by bolts. The upper part of the first vertical plate 60 and the second vertical plate 61
An upper ring 62 is fixed over the upper part of the first vertical plate 60.
A lower ring 63 is fixedly attached to a lower portion of the second vertical plate 61. A guide cylinder 64 is fixed substantially parallel to the second arm 6 over the upper ring 62 and the lower ring 63. The steel pipe 21 is slidably fitted in the guide cylinder 64, and a slider 65 fixed to the steel pipe 21 is slidably fitted in the long groove 66 of the guide cylinder 64, and the steel pipe 21 is It slides along body 64 so that it does not rotate.

A telescopic cylinder 67 is provided between the first vertical plate 60 and the second vertical plate 61. A piston rod 67 a of the telescopic cylinder 67 is connected to a first bracket 68 fixed to an upper portion of the steel pipe 21 by a first pin 69. Cylinder tube 67b of the telescopic cylinder 67
Is connected to a second bracket 70 fixed to a lower portion of the guide cylinder 64 by a second pin 71.

As described above, the telescopic cylinder 67 is used.
The steel pipe 21 moves upward along the guide cylinder 64 when the piston rod 67a is extended. When the piston rod 67a is contracted, the steel pipe 21 moves downward. Also, the first arm forming the moving mechanism 22 in the second arm 6
Since the second vertical plates 60 and 61 are bolted, the steel pipe 21 (the suction portion of the suction hose 20) can be easily attached to an excavator equipped with a normal bucket.

Next, the operation of sucking and transporting excavated earth and sand will be described. The steel pipe 21 is moved up and down by expanding and contracting the piston rod 67a of the telescopic cylinder 67, and the tip 21a of the steel pipe 21 is set to an appropriate position close to the excavation surface. In this state, the first and second arms 5 and 6 are rocked, and the excavation attachment 50 is rocked up and down.
The underground hole B is excavated with the excavation claw 52. At the same time, steel pipe 2
1. The soil excavated by the suction hose 20 is conveyed by suction. Thus, the earth and sand excavated continuously can be sucked and conveyed while excavating.

The steel pipe 21 is connected to the other side plate 5 of the bucket 51.
6 and the excavation claw 52, and within the length L in the excavation direction when in the scooping posture, the sediment excavated by the bucket 51 and the sediment excavated by the excavation claw 52 are scraped to both sides of the steel pipe 21. Can be Therefore, the excavated earth and sand can be efficiently suction-conveyed by the steel pipe 21 and the suction hose 20.

By excavating the underground hole B as described above, excavated materials such as rocks, soft rocks, and solidified earth and sand that are larger than the diameter of the steel pipe 21 may be excavated. These rocks, soft rocks, and hardened earth and sand cannot enter the steel pipe 21 as they are and cannot be conveyed by suction as described above. When the above-described rock is excavated, the rock is scooped by the bucket 51 and the excavation claw 52, the steel pipe 21 is moved downward and pressed against the rock, and the rock is held so as not to fall from the bucket 51 and the excavation claw 52.

In this state, the upper swing body 3 is swung to move to a position away from the excavation position. Thereafter, the steel pipe 21 is moved upward to separate from the rock, and the bucket 51 and the excavation claw 52 are rocked in a direction opposite to the excavation direction to drop the rock. An operator puts the rock into a buckner, lifts it with a crane on the ground, and transports the rock from the ground hole B to the ground.

As described above, the bucket 51 and the excavation claw 52
Can be held by the steel pipe 21 so as not to fall, so that the rock does not fall from the bucket 51 and the excavation claw 52 when the upper swing body 3 is turned. For example, if the bottom surface of the underground hole B is oblique and the excavator is excavating in an oblique posture, turning the upper swing body 4 may cause the bucket 51 and the excavation claw 52 to be greatly inclined and rock to fall. In such a case, the rock can be prevented from falling by holding the rock with the steel pipe 21 as described above.

When the above-mentioned lump of soft rock and earth and sand is excavated, it is scooped by the bucket 51 and the excavation claw 52.
The steel pipe 21 is moved downward and pressed against a soft rock or a mass of earth and sand to break it down. This operation is repeated several times to make the steel pipe 21
To a size that can be sucked. Thereafter, the collapsed soft rock and the mass of the earth and sand are sucked and conveyed by the steel pipe 21 and the suction hose 20 in the same manner as described above. The above-mentioned work of breaking the lump of soft rock and earth and sand is particularly effective when the tip of the steel pipe 21 is kept in the soil.

When the bottom of the underground hole B is soft and easy to excavate, the steel pipe 21 is moved together with the second arm 6 and excavated. In this case, a large load acts on the steel pipe 21, but the steel pipe 21 is fitted to the guide cylinder 64 firmly attached to the second arm 6 by the first and second vertical plates 60 and 61 and the upper and lower rings 62 and 63. Therefore, the large load acting on the steel pipe 21 can be reliably supported by the second arm 6.

The excavation attachment 50 used in this embodiment is not limited to the above-mentioned shape, but may be a normal bucket alone, or a plurality of excavation claws 5 as shown in FIG.
Fork shape which connected 2 at intervals by connecting cross member 57 may be sufficient. Further, the position of the steel pipe 21 in the excavation direction may be a position deviated from the excavation attachment 50 in the scooping posture.

[Brief description of the drawings]

FIG. 1 is an overall front view of a suction and excavation machine showing a first embodiment of the present invention.

FIG. 2 is an overall side view of the suction excavating machine.

FIG. 3 is a perspective view showing another example of the moving mechanism.

FIG. 4 is a front view for explaining the operation of the moving mechanism.

FIG. 5 is a front view for explaining the operation of the moving mechanism.

FIG. 6 is a front view of a plow and a suction hose mounting portion according to a second embodiment of the present invention.

FIG. 7 is a perspective view of a plow attachment portion.

FIG. 8 is an overall front view of a suction and excavation machine showing a third embodiment of the present invention.

FIG. 9 is an overall side view of the suction excavating machine.

FIG. 10 is a perspective view of an attachment for excavation.

FIG. 11 is a plan view of an attachment for excavation.

FIG. 12 is an enlarged front view of a second arm and an excavation attachment part.

FIG. 13 is a sectional view taken along the line CC in FIG. 12;

FIG. 14 is a perspective view showing another example of an attachment for excavation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 4 ... Excavator main body 5 ... 1st arm 6 ... 2nd arm 7 ... Bucket (attachment for excavation) 9 ... Attachment cylinder for excavation 11 ... 1st attachment link 12 ... 2nd attachment link 20 ... Suction hose 21 ... Steel pipe (suction) 22) Moving mechanism 23 ... Bracket 24 ... Link 25 ... Cylinder 30 ... Outer steel pipe 31 ... Inner steel pipe 32 ... Telescopic cylinder 40 ... Plow 41 ... Vertical mounting plate 42 ... Connection plate 43 ... Excavation plate 44 ... Excavation blade ( Excavation part) 50: Excavation attachment 51: Bucket 52: Excavation claw 55: One vertical plate 56: Other vertical plate 60: First vertical plate 61: Second vertical plate 64: Guide cylinder 67: Telescopic cylinder

Continuing on the front page (72) Inventor Koji Chikishi 3-20-1 Nakase, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Inside the Construction Machinery Research Laboratory, Komatsu Ltd. Central Research Laboratory (72) Inventor Tohru Sato 3-18-18 Daikan, Yamato-shi, Kanagawa Prefecture Inside the Hakko Technology Development Center Co., Ltd. (72) Yoshimasa Tanaka 2-3-6 Akasaka, Minato-ku, Tokyo, Ltd. (72) Inventor Seiji Yonemoto 3-20-1 Nakase, Kawasaki-ku, Kawasaki City, Kanagawa Prefecture Komatsu Engineering Co., Ltd.Kawasaki Office (72) Inventor Yasuo Ichimura Kawasaki City, Kawasaki City, Kanagawa Prefecture (72) Inventor Takashi Kanaoka 4-6-25 Sakae, Naka-ku, Nagoya-shi, Aichi F-term in the Electric Power Business Headquarters, Kawakita Electric Industry Co., Ltd. 2D012 FA00

Claims (7)

[Claims] An excavator (A) in which an arm is attached to an excavator body (4) so as to swing up and down, and an excavation attachment is detachably attached to the arm, and a suction hose (20) for suction conveyance. A suction excavating machine, wherein a suction part of the suction hose (20) is vertically movably attached to the arm by a moving mechanism (22). 2. An excavator body is attached to the excavator body (4) so as to be vertically swingable, and an excavation attachment is detachably attached to the arm in an excavation posture and a non-excavation posture by an excavation attachment cylinder (9) and an attachment link. An excavator (A) mounted so as to be able to swing up and down over and a suction hose (20) for suction conveyance, wherein a suction part of the suction hose (20) is mounted on the attachment link. Drilling machinery. 3. When the attachment for excavation is in the excavation position, the suction portion of the suction hose (20) is located above the excavation portion of the attachment for excavation, and when the attachment for excavation is in the non-excavation position, the suction hose (20) is provided. 3. The suction and excavation machine according to claim 2, wherein the suction portion is located below the excavation portion of the excavation attachment. 4. An excavator body (4) is provided with an arm swingably up and down, and an excavation attachment (5) is attached to the arm.
Excavator (A) mounted so as to excavate by swinging 0) up and down, and a suction hose (20) for suction conveyance, and a suction part of the suction hose (20) is attached to the arm. The suction part is the attachment for excavation (50)
A suction excavation machine, which is located on the side of the excavation direction within the excavation width. 5. The excavation attachment (50) has a shape capable of scooping excavated matter, and a suction part of the suction hose (20) is attached to the arm so as to be vertically movable by a moving mechanism (22). The suction part faces the attachment for excavation (50).
A suction drilling machine as described. 6. The excavation attachment (50),
An adjacent bucket (51) and a digging claw (5
The suction excavating machine according to claim 5, further comprising (2), wherein the bucket (51) and the excavating claw (52) are shaped so that the excavated material can be scooped. 7. The excavation attachment (50),
6. A suction excavator according to claim 5, wherein the excavator is in the form of a fork with a plurality of spaced-apart excavating claws (52).