JPH0996183A - Excavating work apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable traveling and unloading in transfer with the own force of an excavator by connecting a hydraulic cylinder for elevation and a crawler type traveling unit to both sides of an all-round rotary excavator and installing a rotation keeping cylinder at time of transfer. SOLUTION: Each one pair of front and rear hydraulic cylinders 2 for driving an excavator to elevate are installed on both sides of an all-round rotary excavator, and a crawler type traveling unit 3 is connected thereto through a bracket 25. In the case of movement in a field, the hydraulic cylinders 2 are elongated to float the excavator 1 from the ground surface and the excavator is moved by the traveling unit 3. In the case of loading on a carrier, first the excavator 1 is lifted to the rising limit by the hydraulic cylinders 2, and a cylindrical body 4 for keeping the rotation of the working apparatus is installed in a casing insert hole 5. Secondly, the load- carrying platform of the carrier is drawn under the excavator 1 and the cylindrical body 4 is grounded on the floor face. Subsequently, the hydraulic cylinders 2 are contracted to raise the traveling unit 3 from the floor face, the excavator 1 is turned in a 90-degree arc by a hydraulic motor, and the hydraulic cylinders 2 are elongated to place the excavator on the load-carrying platform. At the time of unloading from the load-carrying platform, the above work is performed in the reverse order.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excavation work device, and more particularly, to an excavation work device equipped with an all-round rotary excavator.

[0002]

2. Description of the Related Art A full-circle rotary excavator is capable of excavating a much larger diameter than other excavators such as an auger excavator and also capable of removing boulders, boulders, bedrock, concrete, etc. Widely used for construction of cast-in-place piles on hard ground such as consolidated gravel layer, cobblestone layer, boulder layer, rock layer, etc.

[0003]

An all-around rotary excavator is considerably heavier than an excavator such as an auger excavator.
For example, since it has a weight of 25 to 35 tons, it can be transported by a transportation vehicle (trailer) to the vicinity of the construction site, but the transportation of the transportation vehicle from the standby place to the site or from the site to the standby place is performed. It is necessary to use a large crane of 50 to 60 tons for carrying out and moving on the site, which makes the cost of using the crane very high. In addition, when the construction site is under an elevated road such as a highway, in the above-mentioned large crane, the crane height is higher than the bridge girder part of the elevated prop in the posture that can be lifted, and the crane is actually used. There are things you can't do.

In view of the above problems, the present invention is to carry in an all-round rotary excavator from a location near a construction site where the all-round rotary excavator is carried by a transport vehicle to the site, and from the site to the transport vehicle. It is an object of the present invention to provide an excavation work device that can easily carry out to a transportation place by using, and further, move an all-around rotary excavator within a site without using a large crane.

[0005]

An excavation work device according to claim 1 of the present invention is an all-round rotary excavator 1, and hydraulic cylinders 2 for driving the excavator up and down mounted on both sides of the excavator 1. A pair of crawler type traveling bodies 3 and 3 connected to both hydraulic cylinders 2 and 2, and a chuck of the excavator 1 which is inserted into a casing insertion hole 5 of the omnidirectional rotary excavator 1 during transportation work of the excavation work device. And a cylindrical body 4 for holding and rotating a working device that can be held by the device 10.

In the use of this excavation work device, when excavation work is performed, the hydraulic cylinder 2 for raising and lowering the excavator is contracted so that the base frame 6 of the omnidirectional rotary excavator 1 reaches the ground. And lower it to the excavation work posture.
In this excavation work posture, the casing 12 for excavation work is inserted into the casing insertion hole 5 inside the rotating body 7,
While the casing 12 is gripped by the chuck device 10, the rotating body 7 is driven to rotate, and the casing 12 is pushed into or pulled out from the ground while rotating the casing 12.

When the excavation work device is moved within the construction site or when the excavation work device is moved from the site to the standby position of the transport vehicle, the excavator lifting drive hydraulic cylinder 2 is extended to rotate all around. By raising the excavator 1 to a proper height from the ground and driving each crawler type traveling body 3 in that state, the full-circle rotary excavator 1 can be moved.

Further, when the excavation work device is moved from the site to the waiting place of the transport vehicle after the excavation work by the all-around rotary excavator 1 is completed and the excavation work device is loaded on the vehicle,
The hydraulic cylinder 2 for raising and lowering the excavator lifts the full-circle rotary excavator 1 to the upper limit position, and inserts the cylindrical body 4 for holding the working device rotation into the casing insertion hole 5 of the full-circle rotary excavator 1. The cylindrical body 4 is held by the chuck device 10 of the excavator 1. Then, a carrier of a transport vehicle, for example, a trailer 29 is infiltrated below the omnidirectional 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 and placed on the loading platform of the trailer 29, and in this state, the cylindrical body 4 is gripped again by the chuck device 10. As a result, the omnidirectional rotary excavator 1 is integrated with the trailer 29 through the cylindrical body 4 for holding the rotation of the working device, which is placed on the bed of the trailer 29.

Thereafter, the hydraulic cylinder 2 for raising and lowering the excavator is contracted to raise each crawler type traveling body 3 so that its lower surface is higher than the floor surface of the trailer 29. In this state, the entire excavation work device is held on the loading platform of the trailer 29 by the work device rotation holding cylindrical body 4. Then, by driving the hydraulic motor 8 of the omnidirectional rotary excavator 1 to rotate the excavating work device about 90 degrees around the working device rotation holding cylindrical body 4 fixed on the loading platform of the trailer 29, both sides are rotated. The pair of crawler-type traveling bodies 3 can be positioned on the bed of the trailer 29. In this way, after the entire excavation work device is positioned on the loading platform of the trailer 29, the excavator lifting drive hydraulic cylinder 2 is slightly extended to ground the crawler type traveling body 3 on the loading platform, whereby the entire excavation work system is obtained. Can be stably mounted on the bed of the trailer 29. When the excavation work device is unloaded from the trailer 29, the work reverse to the above work may be performed.

As described above, by using this excavation work device, the full-circle rotary excavator is carried in from the standby place of the transport vehicle to the construction site, and from the site to the transport vehicle. It is not necessary to use a large crane to carry out the equipment to the standby place and to move the full-circle rotary excavator on site, and it is easy and easy to load and unload the excavation work device on the transport vehicle. It can be carried out.

According to a second aspect of the present invention, in the excavation work apparatus according to the first aspect, the hydraulic cylinders 2 and 2 and the omnidirectional rotary excavator 1 are detachably connected. Therefore, when excavation work is performed in a state in which the hydraulic cylinders 2 and 2 and the crawler type traveling bodies 3 and 3 are connected to the omnidirectional rotary excavator 1, both hydraulic cylinders 2 and 2 and the crawler type traveling body 3 are used. , 3 play the role of weight, and it is not necessary to provide a special weight means, and the crawler type traveling bodies 3, 3 can stably hold the omnidirectional excavator 1. Further, when there is no installation space for the crawler type traveling body 3 and the hydraulic cylinders 2 and 2 around the full circumference rotary excavator 1, both hydraulic cylinders 2 and 2 and the crawler type traveling body 3 can be removed.

According to a third aspect of the present invention, in the excavating work apparatus according to the first aspect, the two hydraulic cylinders 2 and 2 and the pair of crawler type traveling bodies 3 and 3 are detachably connected. There is. Therefore, when excavation work is performed with both hydraulic cylinders 2 and 2 and both crawler type traveling bodies 3 and 3 connected, both crawler type traveling bodies 3 and 3 play a role of a special weight. It is not necessary to provide any means, and the crawler type traveling bodies 3, 3 can stably hold the omnidirectional rotary excavator 1. Further, when there is no installation space for the crawler-type traveling body 3 around the full-circle rotary excavator 1, the crawler-type traveling body 3 can be removed.

A fourth aspect of the present invention is the excavation work apparatus according to any one of the first to third aspects, wherein the cylindrical body 4 has a bottom plate 4a.
Is integrally formed. Therefore, by this bottom plate 4a, the cylindrical body 4 can be placed in a surface contact state on the loading platform of the trailer 29 as a transportation vehicle and can be stably held.

A fifth aspect of the present invention is the excavation work apparatus according to any one of the first to fourth aspects, wherein the cylindrical body 4 is provided with a hook hole 4b. Therefore, when the hoisting operation of the cylindrical body 4 is performed by a small crane, the hoisting operation is facilitated by locking the hook of the hoisting wire of the crane in the hook hole 4b.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION In the excavating work apparatus of the present invention shown in FIGS. 1 to 3, 1 is a full-circle rotary excavator, 2 is an excavator up-and-down drive which is mounted on both sides of the full-circle rotary excavator 1 in front and back. 3 and 3 are a pair of crawler type traveling bodies arranged on both sides of the omnidirectional rotary excavator 1 and are respectively connected to the pair of hydraulic cylinders 2, 2 and 2, 2 on both sides. . Reference numeral 4 is a cylindrical body for rotating and holding a working device, which is inserted into a casing insertion hole 5 of the full-circle rotating excavator 1 during a transportation work of the excavating work device and which can be held by a chuck device 10 of the excavator 1 described later.

The all-round rotary excavator 1 has a well-known structure and is shown in FIG.
As shown in FIGS. 1 to 13, the base frame 6 is provided with a rotating body 7, a plurality of hydraulic motors 8 with reduction gears, a plurality of press-fitting / pulling-out devices 9 and a plurality of chucking devices 10, and four corners of the base frame 6. A level jack 11 is provided on the. Then, in normal use, the casing 12 for excavation work is inserted into the casing insertion hole 5 inside the rotating body 7.
And insert the casing 12 into each chuck device 10
While being held, the rotating body 7 is rotated by driving the respective hydraulic motors 8 and the casing 12 is rotated and pushed into or extracted from the ground.

As shown in FIG. 12, each hydraulic motor 8
Is attached to an elevating frame 13 connected only to elevating with respect to the base frame 6, and is formed on the outer periphery of the rotating body 7 and a gear 15 fixed to the output shaft 14 by the rotation of the output shaft 14 of the motor 8. The rotating body 7 is rotated in the normal and reverse directions via the gear 16 having the large diameter. Each chuck device 1
As shown in FIG. 13, 0 is a hydraulic cylinder 17 provided on the lifting frame 13, a chuck holder 18 connected to the rod 17a side of the hydraulic cylinder 17 only for relative rotation, and a link to the rotary body 7 side. A casing inserted into the casing insertion hole 5 by means of a chuck claw 20 that is pivotally connected via 19 and is held by the chuck holder 18. The chuck claw 20 is tightened by contraction of the hydraulic cylinder 17. 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 gripped by the chuck device 10, the rotating body 7 is simultaneously rotated integrally with the casing 12 and simultaneously moved up and down with the elevating frame 13. As a result, the casing 12 is lowered or raised while rotating.

As shown in FIG. 9, each of the crawler-type traveling bodies 3 has wheels 22 on both front and rear ends of a support frame 21.
a and 22b are pivotally supported, and a crawler belt 23 is hung on both wheels 22a and 22b. The hydraulic motor 24 with a speed reducer incorporated in one wheel 22a drives this wheel 22a to drive the crawler. Belt 23
Is designed to run. Two hydraulic cylinders 2 for driving the excavator up and down are provided on the support frame 21 in front and rear thereof.
A bifurcated bracket 25 for attaching the piston rod 2b is fixed. The hydraulic oil of the hydraulic motor 24 and the hydraulic oil of the hydraulic cylinders 2 for raising and lowering each excavator are supplied from a hydraulic source (not shown) of the all-round rotary excavator 1.

As shown in FIGS. 1 and 2, a square tubular mounting member 6a is fixed to the base frame 6 of the full-circle rotary excavator 1 in the front-rear and left-right directions. On the other hand, a cylinder mounting base frame 26 is arranged corresponding to each mounting member 6a, and an insertion member 26a is integrally fixed laterally to each mounting base frame 26. Can be attached to the attachment member 6a and thus to the base frame 6 by inserting the pins 26b into the respective tubular attachment members 6a, and by inserting the pins 26b between the two, the attachment frame 26 can be pulled out. And therefore the hydraulic cylinder 2
Can be separated from the base frame 6.

The body portion 2a of each hydraulic cylinder 2 for driving the excavator up and down is vertically mounted on the cylinder mounting base frame 26, and the tip end portion of the piston rod 2b is mounted on the support frame 21 of the crawler type traveling body 3. A detachable pin 27 is detachably connected to the forked bracket 25. The working device rotation holding cylinder 4 is similar to the excavation 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. Further, a hook hole 4b for locking a hook (not shown) for lifting with a small crane is provided at the upper end portion.
It should be noted that, of the respective mounting base frames 26, the mounting base frames 26, 26 corresponding to the front and rear of the mounting base frames 26 may be integrally connected by a reinforcing member 26c to reinforce both the base frames 26, 26.

Next, the use direction of the excavation work device having the above-mentioned structure will be specifically described mainly with reference to FIGS. 4 to 10.

When performing excavation work with this excavation work apparatus, the hydraulic cylinders 2 for raising and lowering each excavator are contracted from the state shown in FIG. It is lowered so that it arrives, and the excavation work posture shown in FIG. 4 is obtained. At this time, the full circumference rotary excavator 1
The levelness of 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 omnidirectional rotary excavator 1, and the casing 1
In a state in which 2 is gripped by each chuck device 10, the rotating body 7 is rotated by driving each hydraulic motor 8 and the casing 12 is rotated and pushed into or extracted from the ground.

In this case, as shown in FIG. 4, the omnidirectional rotary excavator 1 and the cylinder mounting frame 26 are integrally connected to each other by the pin 26b between the mounting member 6a and the insertion member 26a inserted therein. In addition, the excavator lifting drive hydraulic cylinders 2 on both sides and the pair of crawler-type traveling bodies 3 and 3 on both sides are integrally connected by the attachment / detachment pins 27 (see FIG. 2), whereby both hydraulic cylinders 2 and the crawlers are connected. Since the traveling bodies 3 and 3 play the role of weights, it is not necessary to provide a special weight means, and therefore the crawler traveling bodies 3 and 3 can stably hold the omnidirectional excavator 1. You can Depending on the situation at the site, if there is no installation space for the crawler-type traveling body 3 around the full-circle rotary excavator 1, or if the crawler-type traveling body 3 is used only by the full-circle rotary excavator 1 as in the conventional case, the pin 26b is used. By detaching the base frame 6 from the tubular mounting member 6a, the cylinder mounting base frame 26, the hydraulic cylinder 2, and the crawler type traveling body 3,
3 can be removed at once. In this case, by using the tubular mounting member 6a, by inserting a reaction force receiving weight having an outer diameter corresponding to the inner diameter of the tubular member 6a into the mounting member 6a and inserting the pin 26b between the two. The weight can be held by the base frame 6, whereby the reaction force applied to the excavator 1 can be received during the excavation work and the excavation work can be stably performed.

By pulling out the attachment / detachment pin 27, naturally only the crawler type traveling body 3 can be detached from the excavator 1.

Further, when the excavation work device is moved within the construction site, or when it is moved to a place where the transport vehicle is on standby, or when it is moved from the standby position of the transport vehicle to the site, an excavator is used. The lifting / lowering hydraulic cylinder 2 is extended to raise the omnidirectional rotary excavator 1 to an appropriate height from the ground, and each crawler type traveling body 3 is driven in this state, whereby the omnidirectional rotary excavator 1 is driven.
Can be moved appropriately.

When the excavation work device is to be carried out from the site after the excavation work by the full-circle rotary excavator 1 is completed, the excavation work device is driven by the crawler-type traveling body 3 as described above so that Move to the waiting place. And FIG.
As shown in, the hydraulic cylinder 2 for driving the excavator up and down is extended to the maximum extent to raise the omnidirectional rotary excavator 1 to the ascent limit position. In addition, a 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 by using a small crane, and the chuck device 10 of the excavator 1 is inserted.
Thus, the cylindrical body 4 is in 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 suspended by a small crane, a hook (not shown) of a suspension wire is locked in the hook hole 4b provided in the cylindrical body 4 to facilitate the suspending work. Becomes

From the state as shown in FIG. 5, a low-floor trailer 29 towed by a transportation vehicle, for example, a tow truck 28 as shown in FIG. Then, 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, the cylindrical body 4 is dropped on the floor surface of the loading platform of the trailer 29, and in this state, the chuck device is held. The cylindrical body 4 is again gripped by 10 and brought into the state shown in FIG. As a result, the omnidirectional rotary excavator 1 is integrated with the trailer 29 through the cylindrical body 4 for holding the rotation of the working device, which is placed on the floor surface of the loading platform of the trailer 29. An iron plate 30 is previously laid on a required portion of the trailer 29 on which the cylindrical body 4 is dropped on the floor surface of the bed. Since the bottom plate 4a is integrally provided on the cylindrical body 4, the bottom plate 4a prevents the cylindrical body 4 from being formed.
Is increased in strength, and is stably held by being placed on the floor surface of the cargo bed of the trailer 29 in a surface contact state.

Thereafter, the hydraulic cylinders 2 for raising and lowering each 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. The state is as shown. In this state,
The entire excavation work device is supported on the floor surface of the trailer 29 by the work device rotation holding cylindrical body 4. In this way, with the entire excavation work device supported on the floor surface of the trailer 29 by the cylindrical body 4, by driving the hydraulic motor 8 of the omnidirectional rotary excavator 1, the working device rotation holding cylindrical body 4 is centered. Fig. 8 shows the excavation work device
As shown in FIG. 3, the pair of crawler-type traveling bodies 3 on both sides are positioned on the bed surface of the trailer 29 as shown by the phantom lines in FIG. If the base frame 6 is fixed as in the case of excavator work,
The chuck device 10 is driven by driving the hydraulic motor 8.
The cylinder 4 is rotated via the cylinder 4, but in this case, since the cylinder 4 is fixed, the entire excavation work device is rotated about the cylinder 4 by driving the hydraulic motor 8. .

After the entire excavation work device is positioned on the bed of the trailer 29 as described above, each level jack 11
Is grounded to the bed surface of the trailer 29, and each crawler type traveling body 3 is grounded to the floor surface by slightly extending the hydraulic cylinders 2 for raising and lowering each excavator, so that the excavation work device is mounted on the cargo bed of the trailer 29. Will be installed in a stable state. The state in which the excavation work device is thus mounted on the platform of the trailer 29 is shown by phantom lines in FIGS. 10A and 10B, respectively. The above is a trailer for excavation work equipment 29
It is an explanation of the work of loading on the loading platform of No. 2, but when unloading the excavation work device from the loading platform of the trailer 29,
The work may be performed in the reverse order of the loading work order described above.

[0030]

According to the excavation work device of the first aspect,
Move the full-circle rotary excavator into the construction site from the waiting place of the transport vehicle to the construction site, and carry it out from the site to the standby place of the above-mentioned transport vehicle. There is no need to use a large crane to move, and the excavation work device can be easily loaded and unloaded from the transport vehicle, thus improving the construction efficiency and the construction cost. Can be significantly reduced.

According to the second aspect of the present invention, when excavation work is performed with both the hydraulic cylinders and the crawler type traveling bodies connected to the omnidirectional rotary excavator, both hydraulic cylinders and the crawler type traveling body are weighted. This crawler type traveling body can stably hold the omnidirectional rotary excavator without any special weight means. Further, when there is no installation space for the crawler type traveling body and the hydraulic cylinder around the full-circle rotary excavator, both hydraulic cylinders and the crawler type traveling body can be removed.

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

According to the third aspect of the present invention, when excavating work in a state where the hydraulic cylinder and the crawler type traveling body are connected, both crawler type traveling bodies play a role of weight and special weight means is provided. The crawler-type traveling body does not need to be provided, and the full-circle rotary excavator can be stably held. Further, when there is no installation space for the crawler-type traveling body around the full-circle rotary excavator, the crawler-type traveling body can be removed, and thus the excavation work device can be used according to the construction site. .

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

According to the fifth aspect, when the cylindrical body is hung up by a small crane or the like, the hanging wire of the crane is locked in the hook hole of the cylindrical body to facilitate the hanging up. Can be done.

[Brief description of drawings]

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

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

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

FIG. 4 is a front view of the excavation work device in the excavation work posture.

FIG. 5 is a front view of the excavation work device with the excavator in a raised position.

FIG. 6 is a front view showing a state in which the carrier of the transport vehicle is infiltrated below the excavator in the raised position.

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

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

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

FIG. 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 vertical cross-sectional view showing a drive part of a rotating body in an all-around rotary excavator.

FIG. 13 is a vertical cross-sectional view showing a portion of a chuck device in a full-circle rotary excavator.

[Explanation of symbols]

 1 All-round rotary excavator 2 Hydraulic cylinder for lifting and lowering excavator 3 Crawler type traveling body 4 Cylindrical body for holding work machine rotation 4a Bottom plate 4b Hook hole 5 Casing insertion hole 6 Base frame of all-round rotary excavator 6a Mounting member 7 All Rotating body of orbiting rotary excavator 8 Hydraulic motor of fully orbiting excavator 10 Chuck device of fully orbiting excavator 26 Cylinder mounting frame 26a Insert member

Claims (5)

[Claims] 1. An all-round rotary excavator, hydraulic cylinders for raising and lowering an excavator mounted on both sides of the excavator, a pair of crawler-type traveling bodies on both sides connected to both hydraulic cylinders, and an excavation work device. An excavation work device comprising: a cylindrical body for holding a work device rotation, which is inserted into a casing insertion hole of an all-around rotary excavator during transportation work and can be held by a chuck device of the excavator. 2. The excavation work device according to claim 1, wherein the both hydraulic cylinders and the full circumference rotary excavator are detachably connected. 3. The excavation work apparatus according to claim 1, wherein the both hydraulic cylinders and the pair of traveling bodies are detachably connected to each other. 4. The excavation work device according to claim 1, wherein a bottom plate is integrally formed with the cylindrical body. 5. The excavation work device according to claim 1, wherein the cylindrical body is provided with a hook hole.