JP2976330B2 - Excavator-mounted handy vibro hammer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handy vibro hammer equipped with an excavator, which is used, for example, when a sheet pile type sill is used for trench type excavation work in pipeline construction or the like. The present invention relates to a handy vibro hammer mounted with an excavator, which is suitably used for a hammer.

[0002]

2. Description of the Related Art In channel construction and the like, earth retaining is carried out when performing trench type excavation. When the excavation depth is relatively shallow, for example, 1.5 m to 2.5 m, the pile retaining method using a wooden or steel sheet pile is used for this retaining work.
In this case, when a lightweight steel sheet pile is used, the sheet pile is inserted and driven into the ground by lowering the upper end of the sheet pile on the outer bottom surface of the bucket of the excavator.

[0003] At this time, in the case of hard ground such as gravel soil or consolidated sandy soil, the sheet pile is difficult to enter due to insufficient pressure input of the excavator, and the pile length of the sheet pile tends to be short. In this case, two steps of earth retaining work are used.

[0004] However, in the case of a ground with a high groundwater level, it is necessary to lengthen the sheet pile rooting length. In this case, if the burial length is short, boiling may occur. To prevent this, auxiliary construction methods such as a simple well point and a Siemens well are used in combination.

On the other hand, when it cannot be driven by a bucket, it is driven by using a ready-made hydraulic vibratory hammer. In this case, a method of driving using a crane of about 5t,
There is a method in which a bucket is removed from an excavator, a vibratory hammer is mounted on the excavator instead of the bucket, and the hydraulic pressure of the excavator is used as power.

[0006]

However, in the above-mentioned construction method, it is necessary to secure a wide space for placing both the excavating machine and the machine for driving a sheet pile.

Further, in pipeline construction in an urban area, sheet pile driving work is performed while confirming existing buried objects such as gas water facilities, which are difficult to check in advance, so that sheet pile driving work and excavation work are performed in parallel. Sheet pile driving cannot be performed continuously.

Further, when a hydraulic vibratory hammer is mounted on an excavator, since hydraulic pressure is input from the excavator, it generally takes about 0.5 days to remove a bucket and connect a hydraulic hose. After the sheet pile driving operation, it takes about 0.5 days to change the hydraulic vibro hammer to the bucket.
In addition, a ready-made excavator-mounted vibratory hammer has a minimum maximum vibrating force of about 6 t. When a lightweight steel sheet pile having a length of about 3 m is driven, buckling of the sheet pile is likely to occur. Not usually adopted.

On the other hand, for backfilling in pipeline construction, it is a road occupation permission condition that the backfill soil must be leveled with a thickness of 20 cm per layer and compacted for each layer. The compaction is performed using a compactor such as a rammer or compaction plate of about 70 to 80 kg. And
In the case of compaction, it is necessary to suspend the compaction machine from the ground with an excavator and to lift it after completion. Needed.

Accordingly, an object of the present invention is to provide an excavator-mounted handy vibro hammer capable of improving the efficiency and safety of construction in pipeline construction and the like.

[0011]

According to the present invention, there is provided an excavator-mounted handy vibro hammer comprising: a bucket mounting portion for holding a bottom portion of a bucket of an excavator with two long members;
A hooking member that is provided on at least one of the two long members and that is arranged at a position close to one inner end of the claw of the bucket when the bucket is pinched; and a vertical vibration source. A vibrator, an anti-vibration member having an elastic member and connecting the bucket mounting portion and the vibrator, and a chuck for holding one end portion of the sheet pile and connected to the vibrator via a rotary joint And characterized in that:

As described above, in the excavator-mounted handy vibro hammer of the present invention, since the bucket mounting portion is directly attached to the bucket of the excavator, it is not necessary to remove the bucket from the excavator as in a conventional handy vibro hammer. In addition, the handy vibro hammer can be connected to the excavator very easily and quickly, and the labor and time for sheet pile driving in pipeline construction and the like can be greatly reduced.

[0013] In addition, an excavator-mounted handy vibro hammer according to the present invention includes a bucket mounting portion for holding a bottom portion of a bucket of an excavator with two long members, and at least one of the two long members. A hooking member provided on one side and arranged at a position close to one inner side of the claw of the bucket when clamping the bucket, a vibrator serving as a vertical vibration source, the bucket mounting portion, It is characterized by having a vibration isolating rubber for connecting to a vibrator and a plate that is a plate-like member for rolling and connected to the vibrator via an elastic member.

As described above, the handy vibro hammer mounted on an excavator according to the present invention can perform rolling compaction using an excavator by connecting a plate to a vibrator, thereby enabling a rammer rolling by human power. More reliable rolling can be performed than pressure.

[0015] Further, an excavator-mounted handy vibro hammer of the present invention comprises a bucket mounting portion for holding a bottom portion of a bucket of an excavator with two long members, and at least one of the two long members. A hooking member provided on one side and arranged at a position close to one inner side of the claw of the bucket when clamping the bucket, a vibrator serving as a vertical vibration source, the bucket mounting portion, A vibration damping rubber for connecting the vibrator, and when driving a sheet pile, a chuck for holding one end of the sheet pile is connected to the vibrator through a rotary joint, and when rolling is performed, a rolling press is used. A plate, which is a plate-shaped member, is connected to the vibrator via an elastic member.

As described above, the excavator-mounted handy vibro hammer of the present invention can use the excavator for sheet pile driving and compaction by replacing the chuck and the like with the plate. Can improve the overall operation efficiency.

Further, in the excavator-mounted handy vibro hammer of the present invention, it is preferable that the chuck is driven by hydraulic pressure.

The excavator-mounted handy vibro hammer of the present invention is a hydraulic pump for supplying hydraulic pressure, which is a power source of a hydraulic motor in a vibrator, through a hydraulic hose, and is a hydraulic pump powered by a gasoline engine. It is preferable to have a hydraulic unit to which a caster for movement is attached at the lower part.

Thus, the hydraulic pressure can be input from the hydraulic unit placed on the ground or the like without inputting the hydraulic pressure serving as the drive source of the vibrator and the chuck from the excavator, so that it takes time to connect the hydraulic hose and the like. Not
The excavator-mounted handy vibro hammer can be easily and quickly attached to the bucket of the excavator.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing an excavator-mounted handy vibro hammer according to a first embodiment of the present invention.

The excavator-mounted handy vibro hammer includes a bucket mounting portion 1 for holding the bottom surface of a bucket 10 of the excavator with two long members 1a and 1b, and two buckets in the bucket mounting portion 1. A hooking member 2 provided on at least one of the long members 1a and 1b and arranged at a position close to one inner end of the claw 11 of the bucket 10 when the bucket 10 is clamped; A vibration isolator 4 having an elastic member and connecting the bucket mounting portion 1 and the vibrator 3;
A rotary joint 5 for holding one end of the sheet pile 11
And a chuck 6 connected to the vibrator 3 via the Here, the chuck 6 uses hydraulic pressure as a power source.

FIG. 3 is a side view of the vibrator 3 in the excavator-mounted handy vibro hammer shown in FIG. FIG. 4 is a front view of the vibrator 3. The vibrator 3 has a weight 31 fixed to a shaft 33.
And a hydraulic motor 32 for rotating a shaft 33 thereof.
The rotational movement of the hydraulic motor 32 is transmitted by the timing belt 41 and the flat belt 42, and becomes the rotational movement of the shaft 33. When the shaft 33 rotates, the weight 31 attached to the shaft 33 also rotates, and the vibration in the direction of arrow a occurs.

Next, the operation of the excavator-mounted handy vibro hammer will be described. FIG. 5 is an explanatory diagram showing a state in which the sheet pile 11 is driven into the ground using the excavator-mounted handy vibro hammer.

In FIG. 1, a hydraulic unit 50 is a hydraulic pump that supplies a hydraulic pressure serving as a power source for the hydraulic motor 32 and the chuck 6 in the vibrator 3 through a hydraulic hose. The hydraulic unit 50 is a hydraulic pump powered by a gasoline engine, and has a caster 51 for movement at a lower portion.

The excavator-mounted handy vibro hammer is directly mounted on the bucket 10 of the excavator. Here, this excavator-mounted handy vibro hammer weighs 30 kg.
By setting it to a degree, the bucket 10 can be easily attached manually. Since the bucket 10 and the vibrator 3 are connected via the vibration isolating member 4, transmission of the vibration of the vibrator 3 to the excavator is reduced.

On the other hand, the hydraulic unit 50 serving as the power source of the excavator-mounted handy vibro hammer is placed on the ground or the like. Then, in a state where the sheet pile 11 is sandwiched by the chuck 6, vertical vibration is generated by the vibrator 3 and the vertical vibration is given to the sheet pile 11, thereby driving the sheet pile 11 into the ground.

When the hydraulic pump in the hydraulic unit 50 is not used as a power source for the excavator-mounted handy vibro hammer, it can be used as a power source for a generator of, for example, about 100 V and 30 A.

Thus, the excavator-mounted handy vibro hammer can reliably increase the length of the piled sheet by vibrating the vibrator 3 or the like. Can be simplified. In addition, since the length of the sheet pile can be reliably increased, there is no need to construct a groundwater level lowering method such as a simple well point or a Siemens well, so that the construction cost can be significantly reduced.

The excavator-mounted handy vibro hammer can perform excavation and sheet pile driving using a single excavator. Therefore, an excavator for excavation and an excavator for sheet pile driving are used. The working space can be reduced as compared with the conventional construction method.

Further, since the present excavator-mounted handy vibro hammer is directly connected to the excavator bucket, it is simpler and faster than the conventional construction method in which the bucket is detached from the excavator body and a vibro hammer is installed instead of the bucket. A handy vibro hammer can be attached to the excavator, and extremely quick construction can be performed. Here, the excavator-mounted handy vibro hammer does not input the hydraulic pressure serving as a power source from the excavator, but inputs the hydraulic pressure from a hydraulic unit separately disposed on the ground or the like.
The connection of the hydraulic hose is not troublesome, and the handy vibro hammer body can be more easily connected to the excavator.

FIG. 2 is a side view showing an excavator-mounted handy vibro hammer according to a second embodiment of the present invention. The excavator-mounted handy vibro hammer is obtained by removing the rotary joint 5 and the chuck 6 from the excavator-mounted handy vibro hammer shown in FIG. 1 and connecting the plate 21 to the lower portion of the vibrator 3 via an elastic member 22 instead. It is.

Then, in the backfilling work of the pipeline work, the back soil is leveled, the excavator is operated to place the plate 21 on the soil, and vibration is applied to the plate 21 from the vibrator 3. In this way, compaction is performed. here,
After the compaction of each layer is completed, the excavator can be operated to lift the excavator-mounted handy vibro hammer, so that the compacting work can be speeded up and labor can be saved.

Further, since the backfill soil can be compacted by using an excavator, a more reliable compacting effect can be obtained as compared with a conventional human-powered rammer compaction, and the compacting work can be saved.

Further, the excavator-mounted handy vibro hammer can drive and roll the sheet pile only by replacing the attachment such as the rotary joint 5, so that the efficiency of construction can be improved. In addition, since a single excavator can be used to drive and compact a sheet pile, the excavator can be operated comprehensively and efficiently.

[0036]

As described above, according to the present invention, the vibro hammer is directly connected to the bucket of the excavator.
It is possible to provide an excavator-mounted handy vibratory hammer that can easily and quickly attach and detach a vibratory hammer to and from an excavator, and can improve the efficiency and safety of construction in pipeline construction and the like.

Further, the excavator-mounted handy vibro hammer can be used for driving and rolling a sheet pile simply by replacing a chuck or the like with a plate, thereby improving the overall operating efficiency of the excavator. it can.

[Brief description of the drawings]

FIG. 1 is a side view showing an excavator-mounted handy vibro hammer according to a first embodiment of the present invention.

FIG. 2 is a side view showing an excavator-mounted handy vibro hammer according to a second embodiment of the present invention.

FIG. 3 is a side view of the vibrator in the excavator-mounted handy vibro hammer shown in FIG.

FIG. 4 is a front view of the vibrator shown in FIG. 3;

FIG. 5 is an explanatory view showing a use mode of the excavator-mounted handy vibro hammer according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bucket mounting part 2 Hook member 3 Vibrator 4 Vibration-proof member 5 Rotary joint 6 Chuck 10 Bucket 11 Sheet pile 21 Plate 22 Elastic member 31 Weight 32 Hydraulic motor 33 Shaft 50 Hydraulic unit 51 Caster

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Jin Sakuraba 63-1 Okabe, Noshinmachi, Aomori City, Aomori Prefecture Inside of the construction department of Yurtec Aomori Branch Office 53 Yurtec Iwate Branch Office Construction Department (72) Inventor Hiroetsu Kurosawa 233-9 Okawatan, Kawajiri-cho, Akita City, Akita Prefecture Yurtec Akita Branch Office Construction Department (72) Inventor Hiroshi Saito Omachi 2-chome, Sendai City, Miyagi Prefecture 2-25 Co., Ltd. Yurtec Miyagi Branch Office Engineering Department (72) Inventor Hiroyuki Konno 3-5-7 Onome, Yamagata-shi, Yamagata Prefecture Yurtec Yamagata Branch Construction Dept. (72) Inventor Masanori Otsuki Fukushima City, Fukushima Prefecture 35-1 Yurtec Corporation Fukushima Branch Office Engineering Department (56) References JP-A-55-132815 (JP) , A) JP-A-53-10505 (JP, A) JP-A-8-184442 (JP, A) JP-A-7-233530 (JP, A) Fully open 1550-150861 (JP, U) Fully open 61-1446537 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) E02D 7/00-13/10 E02F 3/36

Claims (5)

(57) [Claims] 1. A bucket mounting portion for holding a bottom portion of a bucket of an excavator with two long members, and provided on at least one of the two long members to hold the bucket. A hook member disposed at a position close to one end of the inside of the bucket claw, a vibrator serving as a vertical vibration source, and an elastic member connected to the bucket mounting portion and the vibrator. An excavator-mounted handy vibratory hammer, comprising: a vibration isolating member that clamps one end of a sheet pile and a chuck that is connected to the vibrator via a rotary joint. 2. A bucket mounting portion for holding a bottom surface portion of a bucket of an excavator with two long members and being provided on at least one of the two long members to hold the bucket. A hook member disposed at a position close to one inner end of the claw of the bucket, a vibrator serving as a vertical vibration source, an anti-vibration rubber connecting the bucket mounting portion and the vibrator, An excavator-mounted handy vibro hammer, comprising: a plate member for pressure; and a plate connected to the vibrator via an elastic member. 3. A bucket mounting part for holding a bottom surface portion of a bucket of an excavator with two long members, and provided on at least one of the two long members to hold the bucket. A hook member disposed at a position close to one inner end of the bucket claw, a vibrator serving as a vertical vibration source, and an anti-vibration rubber connecting the bucket mounting portion and the vibrator. When driving a sheet pile, a chuck for holding one end of the sheet pile is connected to the vibrator through a rotary joint, and when rolling is performed, a plate, which is a plate-shaped member for rolling, is connected via an elastic member. An excavator-mounted handy vibrator hammer connected to the vibrator by means of an excavator. 4. The excavator-mounted handy vibro hammer according to claim 1, wherein the chuck is hydraulically driven. 5. A hydraulic pump for supplying hydraulic pressure, which is a power source of a hydraulic motor in a vibrator, through a hydraulic hose according to claim 1, wherein the gasoline engine is a gasoline engine. An excavator-mounted handy vibro hammer comprising: a hydraulic unit having a hydraulic caster mounted on a lower part of the hydraulic pump.