JP2537408B2 - Buried machinery - Google Patents

Description

TECHNICAL FIELD The present invention relates to an burying machine for burying a long buried object such as a cable or a pipe body in the ground.

[Conventional technology]

To bury long buried objects such as cables and pipes in the ground, excavate a burial groove in the ground, place the long buried object in the burial groove, then backfill with earth and sand, and then backfill. The surface is compacted.

Thus, in order to bury a long buried object in the ground, it is necessary to perform trench excavation work, earth and sand backfill work, and compaction work.

[Problems to be Solved by the Invention]

Therefore, in order to bury a long buried object in the ground, it is necessary to prepare a trench excavator that performs trench excavation work and earth and sand backfill work, such as a power shovel and a compaction machine that performs compaction work. Since the power shovel and the compaction machine are expensive, the execution cost is high.

Therefore, an object of the present invention is to provide an burying machine capable of burying a long buried object in the ground with one machine.

[Means and Actions for Solving the Problems]

In the burial machine of the present invention, an upper vehicle body 2 is pivotably provided on a lower traveling body 1, a boom 3 is vertically swingably provided on the upper vehicle body 2, and an arm 5 is vertically swingably provided on the boom 3. A bucket 7 is provided on the arm 5 so as to be vertically rotatable, and the first and second mounting plates 23, 2 are provided on the rear surface of the bucket 7 on the arm 5 side.
4 are mounted in parallel with each other, and the tip of the arm 5 is connected between the first and second mounting plates 23, 24 with an arm pin 27, and
The tip of the link 29 is connected by a link pin 28, the first link 29 is connected via a second link 30 to a bucket cylinder 8 provided on the arm 5, and the bucket 7 has a hydraulic motor on the rear side of the arm 5 side. A vibration exciter 9 for generating a drive by driving 40 is provided, and a mounting seat for the first and second hose guides 43, 44 including a mounting seat 45, a semicircular guide piece 46, and a U-shaped pressing piece 47. The guide pieces 46 are mounted on the first mounting plate 23 in a concentric manner with the bucket pin 27 and the link pin 28, respectively, and the first and second hoses 41 and 42 connected to the hydraulic motor 40 are provided.
Is disposed on the upper vehicle body 2 side through the space between the guide piece 46 and the pressing piece 47 of the first and second hose guides 43, 44.

As a result, the bucket 7 is used for the trench excavation work and the earth and sand backfill work, the excavation blade side of the bucket 7 is grounded, and vibration is applied by the vibration exciter 9 to perform the sand and sand compaction work.

In addition, the first and second hoses 41, 4 connected to the hydraulic motor 40
2 is a guide piece 46 and a holding piece of the first and second hose guides 43 and 44
Guided by 47, the first and second hoses 41, 42 are prevented from being twisted when the bucket cylinder 8 rotates the bucket 7 up and down.

〔Example〕

As shown in FIG. 4, the power shovel has an undercarriage 1
The upper body 2 is rotatably provided by means of a swing mechanism, the boom 3 is attached to the upper body 2 by a boom cylinder 4 so as to be vertically swingable, and the arm 5 is attached at an end of the boom 3 by an arm cylinder 6 so as to be vertically swingable. A bucket 7 is provided at the tip of the arm 5 by a bucket cylinder 8 so as to be vertically swingable.

The bucket 7 is provided with an exciter 9, and the upper vehicle body 2
The roof 10 is attached to the pair of support legs 11 and 11, and
The vehicle body side of the power supply cable 13 becomes movable left and right along the guide 12 provided between the pair of support legs 11 and 11.
One end of the power supply cable 13 is connected to the upper vehicle body 2 by a connector 14.

As shown in FIG. 5, an electric motor 16 and a hydraulic pump 17 are arranged in a storage chamber 15 formed in the rear portion of the upper vehicle body 2, and the electric motor 16 is supplied with electric power supplied by the electric power supply cable 13.
Is driven to rotate the hydraulic pump 17 to discharge pressure oil, and the discharge pressure oil is supplied to each of the cylinders and the vibration exciter by a valve (not shown) to boom 3, arm 5, bucket 7,
It is an electric power shovel that drives the exciter 9 and the like.

 Next, the details of the vibration exciter 9 will be described.

As shown in FIGS. 1 and 2, the bucket 7 has a shape in which the front surface is opened by a pair of side plates 20, 20 and a back plate 21, and the back plate 21 has an arc-shaped portion 21a and a linear portion 21b. , The excavating blade 22 is attached to the tip edge of the linear portion 21b, the first attachment plate 23 and the second attachment plate 24 are fixed to the arcuate portion 21a in parallel with each other, and the first and second attachment plates 23, 24 has pin holes for arms 25
And a link pin hole 26 are formed opposite to each other, and an arm pin 27 inserted between the arm pin holes 25.
The bucket 7 is vertically swingably connected to the tip of the arm 5, and the first link 29 is connected to the bucket 7 by the link pin 28 inserted between the link pin holes 26. It is connected to the bucket cylinder 8 via a second link 30 so that when the bucket cylinder 8 expands and contracts, the bucket 7 swings up and down.

The second mounting plate 24 projects outward from the back plate 21 of the bucket 7, and the lower end surface is welded along the arc-shaped portion 21a of the back plate 21 to increase the mounting strength. The lower end surface of the case side plate 31 is welded along the arc-shaped portion 21a of the back plate 21 so as to face the protruding portion 24a, and the case side plate 31 and the protruding portion 24a of the second mounting plate 24 are substantially U-shaped. -Shaped case cover 32 is welded, a cylindrical body 33 is provided on the protruding portion 24a of the second mounting plate 24 and is closed by a lid 34, and a cylindrical body 35 is provided on the case side plate 31 and a motor mounting plate 36. To form an exciter case 37, and an eccentric weight 38 is placed inside the exciter case 37.
A shaft 39 provided with is rotatably supported, and the shaft 39 is connected to a hydraulic motor 40 mounted on a motor mounting plate 36.

A first hose 41 and a second hose 42 are connected to the hydraulic motor 40, and the first and second hoses 41, 42 are arranged on the arm 5 via first and second hose guides 43, 44, which are not shown. It is connected to the first and second pipes.

The first hose guide 43 and the second hose guide 44 are the third
As shown in the figure, attach the semicircular guide piece 46 to the mounting seat 45,
A U-shaped pressing rod 47 is fixed to the guide piece 46, and the guide piece 46 of the first hose guide 43 is a pin for a bucket.
In addition to being concentric with 27, the guide piece 46 of the second hose guide 44 is concentric with the link pin 28, and 48 is a cover plate that covers the upper portion of the hydraulic motor 40.

 Next, the operation of burying a long buried object will be described.

A groove 50 is excavated by the bucket 7 as shown in FIG. 6A, and long buried objects 51 are vertically stacked in the groove 50 as shown in FIG. 6B.

The groove 50 has substantially the same width as the diameter of the long buried object 51.

After backfilling the earth and sand using the bucket 7 as shown in FIG. 6 (c), the straight portion of the back plate 21 of the bucket 7
21b is pushed back on the earth and sand, and boom cylinder 4
Is freely expanded and contracted by an external force, that is, with the boom operation valve in a floating position and the extension chamber and the reduction chamber of the boom cylinder 4 are short-circuited, the bucket 7 is pressed by the weights of the boom 3, the arm 5, and the bucket 7. By supplying pressure oil to the hydraulic motor 40 and driving it to rotate the shaft 39, vibration is applied to the bucket 7 by the vibration exciter 9 to compact the earth and sand as shown in FIG. 6 (d).

In this way, it is possible to bury a long buried object in the ground with one machine, and according to the above-mentioned construction method, the long buried object 51 is excavated in the groove 50 of substantially the same width, and the long groove 50 is long. Since the buried object 50 is vertically stacked, it is not necessary to excavate the groove 50 to an extra size, the size of the groove 50 to be excavated can be reduced, and a long buried object can be efficiently buried.

〔The invention's effect〕

The bucket 7 can be used to perform trench digging work and soil backfilling work, and the excavator 9 can be grounded by applying vibration to the excavating blade side of the bucket 7 to perform soil compaction work.

Therefore, a long buried object can be buried in the ground with one machine.

In addition, the first and second hoses 41, 4 connected to the hydraulic motor 40
2 is a guide piece 46 and a holding piece of the first and second hose guides 43, 44
The guide pieces 46 are guided by 47, and the guide pieces 46 are concentric with the bucket pin 27 and the link pin 28. Therefore, when the bucket cylinder 8 rotates the bucket 7 up and down, the first and second hoses 41, 42 does not get twisted.

[Brief description of drawings]

Drawing shows an embodiment of the present invention, Fig. 1 is a front view of a bucket, Fig. 2 is a plan view, Fig. 3 is a perspective view of a hose guide,
FIG. 4 is a front view of the whole, FIG. 5 is an explanatory view of a mounting portion of the electric motor and the hydraulic motor, and FIGS. 6 (a) and 6 (b) are explanatory views of the burying work. 1 is a lower traveling body, 2 is an upper vehicle body, 3 is a boom, 5 is an arm, 7 is a bucket, 9 is a vibrator, 23 and 24 are mounting plates, 27 are arm pins, 28 are link pins, and 37 is Shaker case,
38 is an eccentric weight, 39 is a shaft, and 40 is a hydraulic motor.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsu Hirosawa 377 Konabeshima, Hiratsuka City, Kanagawa Prefecture (72) Inventor, Toyoichi Ono 688-5 Tokunobu, Hiratsuka City, Kanagawa Prefecture (56) References , U) Actual Kaihei 1-69852 (JP, U)

Claims (1)

(57) [Claims] 1. An upper vehicle body 2 is rotatably provided on a lower traveling body 1, and a boom 3 is vertically swingably provided on the upper vehicle body 2.
An arm 5 is swingably mounted on the boom 3, and a bucket 7 is swingably mounted on the boom 5. The first and second mounting plates 23, 24 are provided on the rear surface of the bucket 7 on the arm 5 side.
Are mounted in parallel to each other, the tip of the arm 5 is connected between the first and second mounting plates 23, 24 by an arm pin 27, and
The tip of the link 29 is connected by a link pin 28, the first link 29 is connected via a second link 30 to a bucket cylinder 8 provided on the arm 5, and the bucket 7 has a hydraulic motor on the rear side of the arm 5 side. A vibration exciter 9 for generating a drive by driving 40 is provided, and a mounting seat for the first and second hose guides 43, 44 including a mounting seat 45, a semicircular guide piece 46, and a U-shaped pressing piece 47. The guide pieces 46 are mounted on the first mounting plate 23 in a concentric manner with the bucket pin 27 and the link pin 28, respectively, and the first and second hoses 41 and 42 connected to the hydraulic motor 40 are provided.
Is disposed on the side of the upper vehicle body 2 through the space between the guide piece 46 and the pressing piece 47 of the first and second hose guides 43, 44.