JP2966775B2 - Drilling work equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digging operation device, and more particularly to an digging operation device provided with an all-round rotary excavator.

[0002]

2. Description of the Related Art An all-round rotary excavator is capable of excavating a much larger diameter than other excavators such as an auger excavator, and is also capable of removing cobblestones, boulders, bedrock, concrete and the like. It is widely used in the construction of cast-in-place piles on hard ground such as compacted gravel layers, cobblestone layers, boulder layers, and bedrock layers.

[0003]

By the way, an all-round rotary excavator is considerably heavier than an excavator such as an auger excavator.
For example, since it weighs 25 to 35 tons, it can be transported by a transport vehicle (trailer) to the vicinity of the construction site. However, the transport vehicle can be transported from the standby location to the site or from the site to the standby location. Transporting and moving on site requires the use of large cranes of 50 to 60 tons, which can be very costly to use. In addition, when the construction site is under an elevated road such as an expressway, with a large crane as described above, the height of the crane is higher than the bridge girder of the elevated support in a position where it can be lifted, and the crane is actually used. There are things you can't do.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a method for transporting an all-round rotary excavator from a location near a construction site to a site where the all-round rotary excavator has been transported by a transport vehicle, and for transporting the all-round rotary excavator from the site to the transport vehicle. It is an object of the present invention to provide an excavating work device that can easily carry out the excavator to a transporting place by using the excavator and further move the all-round rotary excavator in the site without using a large crane.

[0005]

According to a first aspect of the present invention, there is provided an excavating work apparatus comprising: an all-round rotary excavator 1; a hydraulic cylinder 2 mounted on both sides of the excavator 1; A pair of crawler-type traveling bodies 3, 3 connected to both hydraulic cylinders 2, 2; And a cylindrical body 4 for holding and rotating the working device that can be gripped by the device 10.

In the use of this excavation work apparatus, when performing an excavation work, the hydraulic cylinder 2 for driving the excavator up and down is contracted and the base frame 6 of the all-round excavator 1 comes to the ground. To the excavation work posture.
In this excavation work posture, the excavation work casing 12 is inserted into the casing insertion hole 5 inside the rotating body 7,
With the casing 12 held by the chuck device 10, the rotating body 7 is driven to rotate, and the casing 12 is pushed into or pulled out of the ground while rotating the casing 12.

When the excavator is moved in the construction site, or when the excavator is moved from the site to a place where a transport vehicle is on standby, the hydraulic cylinder 2 for elevating and lowering the excavator is extended to rotate all around. By raising the excavator 1 from the ground to an appropriate height and driving each crawler type traveling body 3 in that state, the full-rotational excavator 1 can be moved.

In addition, after the excavation work by the all-round excavator 1 is completed, when the excavation work device is moved from the site to the standby place of the transport vehicle and the excavation work device is loaded on the vehicle,
The excavator lifting / lowering drive hydraulic cylinder 2 raises the all-round rotary excavator 1 to the ascending limit position, and inserts the cylinder 4 for holding the working device rotation into the casing insertion hole 5 of the all-round rotary excavator 1. The cylindrical body 4 is held by the chuck device 10 of the excavator 1. Then, a carrier, for example, a bed of a trailer 29 is sneaked under the all-round rotary excavator 1, and the gripping of the working device rotation holding cylinder 4 by the chuck device 10 of the excavator 1 is released. The body 4 is dropped on the loading platform of the trailer 29, and the cylindrical body 4 is gripped again by the chuck device 10 in this state. Thereby, the all-round rotary excavator 1 is integrated with the trailer 29 via the cylinder 4 for holding the rotation of the working device placed on the bed of the trailer 29.

Thereafter, the hydraulic cylinder 2 for driving up and down the excavator is contracted to raise each crawler type traveling body 3 so that the lower surface thereof is higher than the floor surface of the trailer 29. In this state, the entire excavation work device is held on the bed of the trailer 29 by the work device rotation holding cylinder 4. Then, the hydraulic motor 8 of the full-rotating excavator 1 is driven, and the excavating work device is rotated by approximately 90 degrees about the working device rotation holding cylinder 4 fixed on the loading platform of the trailer 29, so that both sides are rotated. The pair of crawler traveling bodies 3 can be located on the bed of the trailer 29. After the entire excavation work device is positioned on the bed of the trailer 29 in this way, the hydraulic cylinder 2 for excavator elevating drive is slightly extended to ground the crawler-type traveling body 3 on the bed, so that the entire excavation work device is Can be stably mounted on the bed of the trailer 29. When the excavator is to be removed from the trailer 29, the above operation may be performed in reverse.

As described above, by using this excavating work device, the all-round excavator can be brought in from the place where the transport vehicle stands by to the construction site, and the all-round excavator can be transported from the site to the construction vehicle. There is no need to use a large crane to carry out the excavator to the standby area and further move the rotary excavator around the site, and the loading and unloading of the excavating equipment on the transport vehicle is made easy and easy. It can be carried out.

A second aspect of the present invention is the excavating apparatus according to the first aspect, wherein the hydraulic cylinders 2 and 2 and the full-rotation excavator 1 are detachably connected to each other. Therefore, when excavation work is performed in a state where both hydraulic cylinders 2 and 2 and both crawler traveling bodies 3 and 3 are connected to the full-rotational excavator 1, both hydraulic cylinders 2 and 2 and crawler traveling body 3 are used. , 3 play a role of weight, and there is no need to provide any special weight means, and the crawler-type traveling bodies 3, 3 can stably hold the all-round rotary excavator 1. When there is no space for installing the crawler-type traveling body 3 and the hydraulic cylinders 2 and 2 around the all-round rotary excavator 1, the two hydraulic cylinders 2 and 2 and the crawler-type traveling body 3 can be removed.

A third aspect of the present invention is the excavating apparatus according to the first aspect, wherein the two hydraulic cylinders 2 and 2 and the pair of crawler traveling bodies 3 and 3 are detachably connected. I have. Therefore, when excavation work is performed with both hydraulic cylinders 2, 2 and both crawler-type traveling bodies 3, 3 connected, both crawler-type traveling bodies 3, 3 serve as weights, and special weights are used. There is no need to provide any means, and the crawler-type traveling bodies 3, 3 can stably hold the all-round excavator 1. When there is no space for installing the crawler type traveling body 3 around the all-round rotary excavator 1, the crawler type traveling body 3 can be removed.

According to a fourth aspect of the present invention, in the excavating apparatus according to any one of the first to third aspects, the cylindrical body 4 has a bottom plate 4a.
Are formed integrally. Therefore, the cylindrical body 4 can be stably held on the carrier of the trailer 29 as a transport vehicle by the bottom plate 4a.

According to a fifth aspect of the present invention, in the excavating operation device according to any one of the first to fourth aspects, the cylindrical body 4 is provided with a hook hole 4b. Therefore, when the work of suspending the cylindrical body 4 is performed by a small crane, the suspension work is facilitated by locking the hook of the suspension wire of the crane in the hook hole 4b.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the excavating work apparatus according to the present invention shown in FIGS. 1 to 3, reference numeral 1 denotes an all-round rotary excavator, 2 denotes a pair of front and rear excavator drives mounted on both sides of an all-round rotary excavator 1. Hydraulic cylinders 3 and 3 are a pair of crawler-type traveling bodies arranged on both sides of the full-rotational excavator 1 and are respectively connected to the pair of hydraulic cylinders 2 and 2 on both sides. . Reference numeral 4 denotes a cylindrical body for rotating and holding the working device that is inserted into the casing insertion hole 5 of the all-round rotary excavator 1 during the carrying operation of the excavating device and can be gripped by a chuck device 10 of the excavating device 1 described later.

The all-round excavator 1 has a well-known structure,
As shown in FIGS. 1 to 13, a rotating body 7, a plurality of hydraulic motors 8 with a reduction gear, a plurality of press-in / pull-out devices 9, and a plurality of chuck devices 10 are provided on a base frame 6. Is provided with a level jack 11. However, in normal use, the casing 12 for excavation work is inserted into the casing insertion hole 5 inside the rotating body 7.
And insert this casing 12 into each chuck device 10.
In this state, the rotary body 7 is rotated by driving the respective hydraulic motors 8 so that the casing 12 is pushed into or pulled out of the ground while rotating.

As shown in FIG. 12, each hydraulic motor 8
Is mounted on an elevating frame 13 which is connected to the base frame 6 so as to be able to move only up and down. By rotation of an output shaft 14 of the motor 8, a gear 15 fixed to the output shaft 14 and an outer periphery of the rotating body 7 are formed. The rotating body 7 is rotated forward and reverse through the large-diameter gear 16 thus set. Each chuck device 1
Reference numeral 0 denotes a hydraulic cylinder 17 provided on the lifting frame 13, a chuck holder 18 connected to the rod 17 a side of the hydraulic cylinder 17 so as to be able to rotate only relatively, and a link to the rotating body 7 side, as shown in FIG. And a chuck claw 20 pivotally connected via a chuck 19 and held by the chuck holder 18. The chuck claw 20 is tightened by the contraction operation of the hydraulic cylinder 17, and the casing inserted into the casing insertion hole 5 is formed. 12 is gripped and fixed. Therefore, by operating the hydraulic motors 8 and the press-fitting / pulling-out device 9 while the casing 12 is held by the chuck device 10, the rotating body 7 simultaneously rotates integrally with the casing 12 and simultaneously ascends and descends with the elevating frame 13, As a result, the casing 12 descends or rises while rotating.

As shown in FIG. 9, each of the crawler-type traveling bodies 3 has wheels 22 at front and rear ends of a support frame 21.
a and 22b, and a crawler belt 23 is mounted on both wheels 22a and 22b. The crawler is driven by a hydraulic motor 24 with a speed reducer incorporated in one of the wheels 22a. Belt 23
Is to be run. The excavator lifting drive hydraulic cylinders 2
A forked bracket 25 for attaching the piston rod 2b is fixed. The hydraulic oil of the hydraulic motor 24 and the hydraulic oil of each excavator lifting drive hydraulic cylinder 2 are supplied from a hydraulic source (not shown) of the all-round rotary excavator 1.

As shown in FIGS. 1 and 2, a rectangular tubular mounting member 6a is fixed to the base frame 6 of the all-round rotary excavator 1 in front, rear, left and right directions. On the other hand, a cylinder mounting frame 26 is provided corresponding to each mounting member 6a, and a plug member 26a is integrally fixed to each mounting frame 26 in the horizontal direction. Can be attached to the mounting member 6a, and thus to the base frame 6, by inserting the pins 26b into the cylindrical mounting members 6a and inserting the pins 26b therebetween. And therefore the hydraulic cylinder 2
Can be detached from the base frame 6.

The body 2a of each hydraulic cylinder 2 for vertically moving the excavator is vertically mounted on the cylinder mounting frame 26, and the tip of the piston rod 2b is mounted on the support frame 21 of the crawler type traveling body 3. The detachable pin 27 is detachably connected to the forked bracket 25. The working device rotation holding cylinder 4 is similar to the digging work casing 12, but has a shorter length than the casing 12, and a bottom plate 4a is integrally provided at the lower end as shown in FIG. A hook hole 4b is provided at the upper end for locking a hook (not shown) for lifting with a small crane.
Note that, of the respective mounting frames 26, the mounting frames 26 corresponding to the front and rear thereof may be integrally connected by a reinforcing member 26c to reinforce the both frames 26.

Next, the direction of use of the excavating work apparatus having the above configuration will be specifically described mainly with reference to FIGS.

When an excavating operation is performed by this excavating operation device, the hydraulic cylinders 2 for driving up and down the excavator are contracted from the state shown in FIG. The digging work posture is lowered as shown in FIG. At this time, the all-round rotary excavator 1
Is adjusted by each level jack 11. In this excavation work posture, as described with reference to FIG. 11, the casing 12 for excavation work is inserted into the casing insertion hole 5 of the all-round rotary excavator 1, and this casing 1
With the chuck 2 held by each chuck device 10, the rotating body 7 is rotated by driving each hydraulic motor 8, and the casing 12 is pushed into or pulled out of the ground while rotating.

In this case, as shown in FIG. 4, the peripheral rotating excavator 1 and the cylinder mounting frame 26 are integrally connected to the mounting member 6a and the insertion member 26a inserted into the mounting member 6a by pins 26b. The excavator lifting hydraulic cylinders 2 on both sides and the pair of crawler traveling bodies 3 on both sides are integrally connected by detachable pins 27 (see FIG. 2), so that both hydraulic cylinders 2 and the crawler Since the traveling bodies 3 play the role of weights, it is not necessary to provide any special weight means. Therefore, the full-rotational excavator 1 can be stably held by the two traveling bodies 3 and 3. Can be. Depending on the situation at the site, if there is no space for installing the crawler-type traveling body 3 around the all-round rotary excavator 1, or if only the all-round rotary excavator 1 is used as in the related art, the pin 26b is used. By detaching from the cylindrical mounting member 6a of the base frame 6, the cylinder mounting base frame 26, the hydraulic cylinder 2,
3 can be removed at once. In this case, by utilizing the cylindrical mounting member 6a, a weight for receiving a reaction force having an outer diameter corresponding to the inner diameter of the member 6a is inserted into the mounting member 6a, and the above-mentioned pin 26b is inserted therebetween. The weight can be held by the base frame 6, thereby receiving a reaction force applied to the excavator 1 during the excavation operation, and performing the excavation operation stably.

Further, by pulling out the detachable pin 27, only the crawler type traveling body 3 can naturally be detached from the excavator 1.

When the excavator is moved within the construction site, or when it is moved to a place where the transport vehicle is waiting, or when it is moved from the standby place of the transport vehicle to the site, the excavator is used. The full-rotation excavator 1 is raised by lifting the lifting drive hydraulic cylinder 2 from the ground to an appropriate height and driving each crawler type traveling body 3 in that state.
Can be moved appropriately.

When the excavation work device is to be carried out of the site after the excavation work by the all-round rotary excavator 1 is completed, the excavation work device is driven by the crawler-type traveling body 3 as described above to drive the transport vehicle. Move to the waiting area. And FIG.
As shown in (1), the hydraulic cylinder 2 for excavator elevating drive is extended to the maximum extent to raise the all-round excavator 1 to the ascending limit position. Further, the cylindrical body 4 for holding the rotation of the working device is inserted into the casing insertion hole 5 of the all-round rotary excavator 1 using a small crane, and the chuck device 10 of the excavator 1 is inserted.
This brings the cylindrical body 4 into a state as shown in FIG. 5 (a state in which the lower end of the cylindrical body 4 does not protrude from the casing insertion hole 5).
To be kept. When the cylindrical body 4 is hung by a small crane, the hooking work (not shown) of the hanging wire is engaged with a hook hole 4b provided in the cylindrical body 4 to facilitate the hanging operation. Becomes

Thus, from the state shown in FIG. 5, a transport vehicle, for example, a low-floor trailer 29 towed by a tow truck 28 as shown in FIG. In this state, the gripping of the working device rotation holding cylindrical body 4 by the chuck device 10 of the excavator 1 is released, and the cylindrical body 4 is dropped on the bed floor of the trailer 29 and placed in this state. The cylindrical body 4 is gripped again by 10 and brought into the state shown in FIG. Thereby, the all-round rotary excavator 1 is integrated with the trailer 29 via the cylinder 4 for holding and rotating the working device placed on the bed surface of the trailer 29. Note that an iron plate 30 is laid in advance on a required portion of the bed surface of the trailer 29 where the cylindrical body 4 is dropped. Since the bottom plate 4a is provided integrally with the cylindrical body 4, the cylindrical body 4 is formed by the bottom plate 4a.
Of the trailer 29 is stably held by being placed on the bed surface of the trailer 29 in a surface contact state.

Thereafter, the hydraulic cylinders 2 for driving up and down the excavator are contracted to raise each crawler type traveling body 3 so that the lower surface thereof is slightly higher than the floor surface of the trailer 29, and FIG. State as shown. In this state,
The entire excavation work apparatus is supported on the floor of the trailer 29 by the work apparatus rotation holding cylinder 4. By driving the hydraulic motor 8 of the all-round rotary excavator 1 in a state where the entire excavation work apparatus is supported on the floor of the trailer 29 by the cylinder 4 in this manner, the work apparatus rotation holding cylinder 4 is centered. Fig. 8
Is rotated by 90 degrees as shown in FIG. 3 and the pair of crawler traveling bodies 3 on both sides are positioned on the bed surface of the trailer 29 as shown by the phantom line in FIG. When the base frame 6 is fixed as in the excavator operation,
By driving the hydraulic motor 8, the chuck device 10
, The cylindrical body 4 is rotated. In this case, since the cylindrical body 4 is fixed, the entire excavation work device rotates around the cylindrical body 4 by driving the hydraulic motor 8. .

After the entire excavation work apparatus is positioned on the bed of the trailer 29 as described above, each level jack 11
And the excavator lifting drive hydraulic cylinders 2 are slightly extended to ground each crawler type traveling body 3 on the floor surface, so that the excavation work device can be mounted on the bed surface of the trailer 29. Will be mounted in a stable state. The state in which the excavation work device is mounted on the bed of the trailer 29 in this way is shown by virtual lines in FIGS. 10A and 10B, respectively. The excavation work equipment is the trailer 29
This is an explanation of the operation of loading the excavation work device from the bed of the trailer 29.
The operation may be performed in the reverse order of the loading operation described above.

[0030]

According to the excavating work device according to the first aspect,
All-round excavator is transported from the standby location of the transport vehicle to the construction site, and is carried out from the site to the standby location of the transport vehicle. There is no need to use a large crane to move the vehicle, and the work of loading and unloading the excavation work equipment on the transport vehicle can be performed easily and easily, so that the construction efficiency can be improved and the construction cost can be improved. Can be greatly reduced.

According to the second aspect, when excavation work is performed in a state in which both hydraulic cylinders and both crawler-type traveling bodies are connected to the full-rotational excavator, both hydraulic cylinders and the crawler-type traveling bodies are weighted. It plays a role and does not require any special weight means, and the crawler-type traveling body can stably hold the all-round rotary excavator. Further, when there is no space for installing the crawler type traveling body and the hydraulic cylinder around the all-round rotary excavator, both hydraulic cylinders and the crawler type traveling body can be removed.

Further, by using a tubular mounting member to insert and hold a reaction force receiving weight in the mounting member, it is possible to receive a reaction force applied to the excavator during excavation work. .

According to the third aspect, when excavation work is performed with the hydraulic cylinder and the crawler type traveling body connected to each other, both crawler type traveling bodies serve as weights, and special weight means are provided. There is no need to use this crawler-type traveling body, so that the all-round excavator can be stably held. Further, when there is no space for installing the crawler-type traveling body around the all-round rotary excavator, the crawler-type traveling body may be removed, so that an excavation work device according to the construction site can be used. .

According to the fourth aspect, the strength of the cylindrical body can be increased by the bottom plate, and the cylindrical body can be stably held on the carrier of the excavation work device in a surface contact state.

According to the fifth aspect, when the work of suspending the cylindrical body is performed by a small crane or the like, the suspending work is facilitated by engaging the hooks of the hanging wires of the crane with the hook holes of the cylindrical body. Can be done.

[Brief description of the drawings]

FIG. 1 is a front view of an excavating work device according to the present invention.

FIG. 2 is a plan view of the above-described excavation work device.

FIG. 3 is a partial cross-sectional front view of a working device rotation holding cylinder.

FIG. 4 is a front view of the digging operation device in the digging operation posture.

FIG. 5 is a front view of the excavating operation device in which the excavator is in a raised position.

FIG. 6 is a front view showing a state in which the carrier of the transport vehicle is sneaked below the excavator at the ascending position.

FIG. 7 is a front view showing a state in which the entire excavation work device is supported on a carrier of the transport vehicle.

FIG. 8 is a plan view showing a state in which the excavation work device is rotated by 90 degrees in a state where the entire excavation work device is supported on a carrier of a transport vehicle.

FIG. 9 is a side view showing a crawler type traveling body.

10A is a plan view of a tow truck and a trailer as a transport vehicle, and FIG. 10B is a side view thereof.

FIG. 11 is a perspective view showing an all-round rotary excavator.

FIG. 12 is a longitudinal sectional view showing a driving part of a rotating body in the all-round rotary excavator.

FIG. 13 is a longitudinal sectional view showing a part of a chuck device in the all-round rotary excavator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Full-circle excavator 2 Hydraulic cylinder for excavator up-and-down drive 3 Crawler type traveling body 4 Working device rotation holding cylinder 4a Bottom plate 4b Hook hole 5 Casing insertion hole 6 Base frame of full-circle excavator 6a Mounting member 7 All Rotating body of peripheral rotating excavator 8 Hydraulic motor of peripheral rotating excavator 10 Chuck device of peripheral rotating excavator 26 Cylinder mounting frame 26a Plug-in member

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-2482 (JP, A) JP-A-3-103590 (JP, A) JP-A-4-82093 (JP, U) (58) Survey Field (Int.Cl. ⁶ , DB name) E21B 7/20-7/22

Claims (5)

(57) [Claims] An excavator, a hydraulic cylinder mounted on both sides of the excavator, and a pair of crawler-type traveling bodies connected to both hydraulic cylinders; An excavating work device comprising: a working device that is inserted into a casing insertion hole of an all-round rotary excavator during a transport operation and that can be held by a chuck device of the excavator; 2. The excavating apparatus according to claim 1, wherein the hydraulic cylinders and the full-rotating excavator are detachably connected to each other. 3. The excavating apparatus according to claim 1, wherein the hydraulic cylinders and the pair of traveling bodies are detachably connected to each other. 4. The excavating work device according to claim 1, wherein a bottom plate is formed integrally with the cylindrical body. 5. The excavating work device according to claim 1, wherein a hook hole is provided in the cylindrical body.