JP2002161547A - Loading type twin arm working vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out two works separately and simultaneously by two working arms loaded on a traveling vehicle and show a relatively large force safely in a simple constitution and efficiently carry out a wide range of works. SOLUTION: The working vehicle is provided with a first working machine 11 in which a revolving body 14 is installed revolvably and a flexible working arm 8 constituted of a boom 16 and an arm 17 is supported so as to rise and fall, a second working machine 12 installed adjacent to the first working machine 11 and provided with substantially the same structure with the first working machine, a connecting body 2 fixing revolving bases 90a, 90b of the working machines 11, 12, and an operating section 7 having both right and left operation levers 21a, 21b. The first working machine 11 and the second working machine 12 are mounted and fixed on the connecting body 2 of the traveling vehicle body 13 so as to coincide with each other in the axial direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a revolving structure in which a revolving work arm comprising a boom and an arm at the tip of the revolving structure is mounted on a revolving structure so as to be revolvable about a vertical axis via a revolving bearing. The present invention relates to a freely supported work machine for performing works such as civil engineering work and construction work, and a loading structure thereof.

[0002]

2. Description of the Related Art Conventionally, a working machine for construction work of a hydraulic excavator system such as a back hood is operated by an operator operating two operating levers to operate one boom or arm. Excavation and crushing were performed using a special attachment attached to the tip of the arm according to the work.

A hydraulic excavator for performing an excavating operation shown at 10 in FIG. 15 mounts a revolving unit 14 on a traveling vehicle body 13 via a revolving bearing so as to be revolvable around a vertical axis (in a direction indicated by r1 in FIG. 15). And the boom 16 is positioned near the revolving axis of the revolving unit 14.
One work arm 8, which can be bent freely, comprising an arm 17 at the tip of the work arm 8 is supported so as to be able to move up and down.

[0004] Attachment (clamping and crushing device) shown at 18 in the figure is attached to the tip of the arm 17 according to the work. Then, the operator 20 operates two operation levers 21 from the seat 22 provided on the revolving unit 14, and expands and contracts through the plurality of hydraulic cylinders 19 attached to the boom 16 and the arm 17. The working arm 8 is operated so as to be freely refracted in the directions indicated by r2 and r4 in the drawing.

In general, a command is issued to one work arm 8 by two operation levers as shown by 21a and 21b in FIG. 16, and in the figure, a bucket 24 is operated by a right operation lever 21a. Up and down or boom 16
Of the arm 17 is selected by the left operating lever 21b, or one of the left and right swings of the revolving unit 14 is selected. In this way, the work arm 8 is activated in accordance with the commands (directions indicated by r1, r2, r4, and r5 in the drawing) selected one by one by the two left and right operation levers 21.

Further, foot pedals indicated by reference numerals 23a and 23b in FIG. 16 actuate axles provided on the left and right sides of the traveling vehicle body 13 to perform forward / backward traveling or left / right turning traveling via a caterpillar indicated by 26 in FIG. 16 in FIG.
The pedal indicated by 3a operates the caterpillar 26a on the right side of the traveling vehicle body 13, and the pedal indicated by 23b operates the caterpillar 26b on the left side of the traveling vehicle body 13.

Here, reference numeral 3 in FIG. 15 denotes a traveling frame of the traveling vehicle body 13 which supports the revolving superstructure 14.

On the other hand, a hydraulic shovel type working machine performs various tasks such as digging, crushing, dismantling, and lifting by replacing the attachment 18, and in recent years, another working arm has been arranged on the working machine. By switching to a work arm equipped with another attachment for each process and performing work,
A configuration has also been proposed that aims to improve work efficiency by eliminating the trouble of replacing attachments.

In the above-mentioned conventional technology, one worker operates one work arm to perform one work according to the attached attachment.

[0010]

In the construction of the conventional working machine such as a hydraulic excavator, various kinds of work such as excavation, crushing, dismantling, and lift are performed by exchanging attachments, but only one work is performed. It has a configuration and is not always efficient in terms of quickly processing work, and has many problems.

That is, for example, in the dismantling work of a hard side wall such as concrete, a spherical iron weight is lifted at the tip of an arm via a rope, and the amplitude is increased while gradually swinging the weight in a repetitive turning operation. It is known to disassemble by hitting the weight against the side wall when it becomes, but the work of shaking the weight involves danger to surrounding objects, and it is difficult to control the amount of energy at the time of collision,
In such an operation, there is a danger that the side wall itself may be collapsed by an impact and fall down, and there is a problem in that the operation can be performed by swinging the weight efficiently.

In addition, when the concrete piece is lifted and moved by the attachment for clamping the broken side wall, the steel frame material embedded in the concrete piece hinders the moving operation. Therefore, the worker moves the concrete piece after waiting for the cutting of the steel frame material. However, there is a problem that the worker must keep the lifted concrete piece until the manual cutting operation is completed. Further, in this case, when the concrete piece is pinched by one work arm, when the center of gravity of the object is different from the pinch point, the moment force acts on the pinch point, and the pinch point tends to slip. It is very dangerous if the object is heavy. For this reason, while the concrete piece must be sandwiched by a large force, the object is easily broken, and especially in the assembly work in which the construction member or the like must be supported to match a predetermined frame, the construction member is opposed to the moment force. Must be kept in the desired position,
In order to prevent slippage, it is necessary to pinch the construction member with strong force, and the construction member is easily crushed or damaged at the holding part,
In addition, there is a problem that when the strength of the construction member is held against the moment, the construction member is cracked around.

Further, in the lifting work, when lifting a heavy object with a rope or the like, if the work arm is extended forward to lift the heavy object, the machine body center of gravity of the working machine is shifted forward, and there is a danger of falling. Further, there is a problem that the work implement itself is easily shaken and fall down due to the swing of the lifted heavy object. Further, if the center of gravity of the aircraft shifts forward, there is a problem that the lift force is reduced and the swing of the lifted heavy object sometimes causes the heavy equipment to fall apart and fall.

Further, in the dismantling work of a building, etc., the dismantling work using a crushing tool at the tip of the arm lifted to a high position includes:
Since there is a risk of falling crushed concrete debris, it is necessary to crush and treat the structure little by little patiently and patiently, but this is a time-consuming and inefficient operation. On the other hand, in order to tear the building material side wall at a desired position, it is difficult to tear the side wall unless the side wall is fixed at the desired position, and there is no other way but to gradually cut the work with a crusher or cutter. In addition, when the building material is not fixed at all, the crusher cannot be crushed unless the tip of the crusher is fitted along the crack, so that there is a problem that the work of holding the building material is not effective and the work is very inefficient.

[0015] As described above, in the conventional configuration, it can be seen in examples of shaking the weight, holding the object, preventing the swing of the lifted object and preventing the body from overturning, or the trouble of the crushing operation. In the dismantling work and the assembling work, the work by the conventional working machine is very inefficient and has many problems in that the work is processed quickly.

On the other hand, Japanese Patent Application Laid-Open No. H4-70452 discloses an apparatus in which one work arm is provided with two types of devices, a digging bucket and a lift device. By operating only one of them, it is intended to switch and use it. However, in such a configuration, for example, it is not possible to prevent the swing of the item lifted by the lift device by sandwiching the swing with the bucket device. This is a structure in which when the work arm is moved, both devices are moved at the same time, and as described above, it is a configuration that can cope with only one work, and does not solve the various problems described above.

[0017] Japanese Patent Application Laid-Open No. H5-89543 and Japanese Unexamined Patent Application Publication No. H8-3
Japanese Patent Application Laid-Open No. 11919 is known, but in these publications, a work point is selectively operated by any one of work arms provided before and after, and intermittently. One of the work arms is selected to perform the work in the continuous process. In this configuration, when different identical processes occur continuously, it is possible to save the trouble of replacing the attachment.However, as for each work, the work efficiency is not different from that of the conventional hydraulic excavator. The working machine configuration can handle only one job, and does not solve the various problems described above.

Further, in Japanese Utility Model Laid-Open No. H5-89544, a second work arm having a different shape from one work arm is provided on the work point side. Actual opening H
It is not necessary for the operator to take a posture to a position inverted to a work point by a turning operation as in Japanese Patent Application Laid-Open No. 5-89543, but the above publication structure has a bucket and a breaker as attachments of a work arm. In the same manner as described above, one of the attachments is selectively selected and the hydraulic circuit is switched to perform the operation. Therefore, it cannot be said that the above-mentioned various problems are similarly solved.

That is, Japanese Utility Model Application Laid-Open No. H5-89543, Japanese Patent Application Laid-Open No.
In Japanese Patent Application Publication No. 9544, one working machine is provided with two working arms. However, in one working machine, the hydraulic pressure generated by one engine is limited, and two working arms are used. Cannot be operated simultaneously and efficiently, and only one working arm can be operated by switching the hydraulic circuit. Further, it can be said that it is difficult to arrange the two working arms at a suitable position for working at the same point, because the risk of falling increases due to the position of the center of gravity of the machine body.

[0020] Therefore, as a working machine for civil engineering work or construction work, even in an aging society where there is a concern that there is a shortage of workers, two people can work efficiently by one person.
It has been desired to have a simple configuration in which two operations can be performed individually and simultaneously at the same operation point.

According to the present invention, two work arms loaded on a traveling vehicle body can perform two works individually and simultaneously, can have a simple structure, can exert a relatively large force, and can efficiently perform a wide range of operations. It is an object of the present invention to provide a working machine for construction work that performs complicated work.

[0022]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, a revolving twin-arm working machine according to the present invention has a revolving body mounted on a revolving bearing via a revolving bearing so as to be rotatable about a vertical axis. A first working machine in which a revolving work arm including a boom and an arm at the tip thereof is supported on a revolving body so as to be able to move up and down; A second work machine having the same structure, a connecting body for fixing a revolving base supporting the revolving unit of the first work machine and a revolving base of the second work machine, and operating a work arm of the first work machine Operating unit having both an operating lever for operating the operating arm of the second working machine and an operating lever for operating the working arm of the second working machine. It is characterized by being loaded and fixed on the connecting body 2 so that the directions substantially coincide with each other.

The first working machine and the second working machine adjacent to the first working machine are arranged side by side at right angles to the running direction of the running vehicle body and fixed in a row by a connecting body. It is preferable that the second working machine adjacent to the second working machine is linearly arranged in the traveling direction of the traveling vehicle body and fixed in a tandem manner by a connecting body.

[0024] Further, the first working machine and the second working machine provided on the connected body of the traveling body each include a traveling body.
The fixing with the connecting body is provided so as to be detachable,
It will be suitable for assembling the aircraft locally.

If the traveling body on which the first working machine and the second working machine are loaded is a tow carrier, or if the traveling body travels on a predetermined track, the traveling body is quickly moved away. The structure is easy to move.

[0026]

FIG. 1 shows an embodiment of the present invention.
This will be briefly described with reference to FIGS. In the loaded twin-arm working machine 1 of the present invention, a revolving body 14 used for construction work or the like is mounted so as to be rotatable around a vertical axis via a revolving bearing, and a boom 16 and a tip thereof are mounted on the revolving body 14. Arm 1
A first work machine 11 (hydraulic shovel-based work machine), which is supported by a single work arm 8 which can be bent freely and comprises an attachment 18 at the tip of an arm 17.
A second working machine 12 (a second hydraulic excavator working machine) adjacent to the first working machine 11 and having substantially the same structure as the first working machine 11; A connecting body 2 for fixing a revolving base 90a for supporting the revolving unit 14 and a revolving base 90b of the second work machine, a right operating lever 21a for hydraulically operating the work arm 5 of the first work machine 11, and a second work An operating unit 7 having both an operating lever 21b for hydraulically operating the working arm 6 of the machine 12 so that the revolving body 14a of the first working machine 11 and the revolving body 14b of the second working machine 12 ,
The connecting body 2 is mounted and fixed on the connecting body 2 with a stopper so that the axial directions thereof substantially coincide with each other.

The first working machine 11 and the second working machine 12 adjacent thereto are arranged in a row in the connecting body 2 side by side in a direction perpendicular to the traveling direction of the traveling vehicle body 13, or Work machine 11 and the adjacent second work machine 12
, And are stacked in a row in the connecting body 2 in a line in the traveling direction.

Further, the first working machine 11 and the second working machine 12 provided on the connecting body 2 of the traveling body 13 are provided with running bodies 91a and 91b, respectively. It is made of a car stop lock and is provided so as to be able to be fixedly separated.

The traveling vehicle body 13 on which the first working machine 11 and the second working machine 12 are loaded is constituted by a tow carrier 92,
The traveling vehicle body 13 travels on a track of a predetermined rail 93.

(Operation) With the above-described configuration, the present invention can perform the following operation. That is, the traveling vehicle body 1
A revolving unit 14 is mounted on the revolving unit 3 so as to be revolvable, and two working machines 11 and 12 having a revolving unit 14 and a working arm 8 composed of a boom 16 and an arm 17 supported on the connecting unit 2. As a result, the working machine having the two working arms 5 and 6 can be realized at extremely low development costs, and the stability of the working machine mounted and fixed depends on the center of gravity of each working machine. The positions are shifted to the intermediate positions of each other and are supported by the traveling vehicle body 13 on which they are mounted, so that it is safe and extremely stable with little risk of falling. In this stable structure, the working arm 8 can be provided longer, the working range of the working arm 8 involving turning can be extended, and the long working arm 8 can be used even when there is an obstacle ahead in the traveling direction. By extending the work arm 8 beyond the obstacle to the target point further forward, the work can be performed on the work point at a deeper part. In addition, since each work arm 5, 6 is individually provided on each revolving unit 2, the two work arms 5, 6 can be turned to act on the same work point, or each work arm can be made to act on a different work point. Can be.

For example, in the structure of a single working machine in which the center of gravity of the machine is located near the base of the boom, when the work arm 8 is fully extended, the balance is lost and the reaction force of the work arm 8 is reduced. However, the structure fixedly mounted is a stable and safe structure that generates a large torque by increasing the distance from the boom 16 to the center of gravity. In addition, even if the work cannot be performed with one work arm, the work is free.
The work arm corresponding to the arm of the book holds the ground at a suitable position to cancel the moment, or works while supporting it with a fixed object, further increasing the distance from the center of gravity of the aircraft, the reaction force A structure is provided between the fixed object, the support-side working arm, and the connecting body to support the unit so that no moment is generated by receiving the force. A large force can be applied to the object.

Moreover, even when the two working arms 5 and 6 pull or push the work object to each other,
Work is performed by forming a substantially triangular loop structure (a triangular structure consisting of two pivotable working arms whose base is a connected body) in which the reaction force is canceled as an internal force because the structure is in a connected state by being loaded and fixed. A large force can be applied to the object by applying the acting force of the arms 5 and 6 with the combined force without escaping. The two working arms 8 constituted by the boom 16 and the arm 17 can apply the above-mentioned action point to a free space position within a movable range of the both working arms 5 and 6.

In the operating section 7 having both the left and right operating levers 21a and 21b of the working machines 11 and 12 located on the left and right, one operator can easily operate the left and right operating levers 21a and 21b.
a, 21b with both left and right hands,
Can be operated individually and simultaneously. Here, the first working machine 11 and the second working machine 12 are mounted and fixed on the connecting body 2 so that their axial directions substantially coincide with each other on the traveling vehicle body 13. Thus, a state in which the physical positional relationship is always determined is obtained, and the operation feeling of the work arm 8 is easily operated under fixed conditions.

If the traveling device 13 is provided with the two working arms 8 and the traveling body 13, even if one of the traveling devices 13 cannot escape from the groove, the one of the two working arms 8 is used. By holding the lower ground and supporting the other with an upper fixed object, and driving the traveling device while performing the operation of lifting the aircraft with both working arms 8, it is relatively easy to remove the vehicle simply if it falls off. You can escape from the groove. Similarly, even in a bad condition such as a bad road, a step or a slope, by traveling in combination with the two working arms 8 and the traveling device 13, it is possible to reach the destination relatively easily. Further, it is possible to enter a place under such poor conditions, stay there, and perform the work with the other work arm 8 while maintaining the attitude of the body with one work arm 8.

That is, the two working arms 5 shown above,
In the configuration provided with the work arm 6, two different works, "one work is performed by the work arm 5 and another work is performed by the work arm 6", are performed simultaneously and at any work point. This makes it possible to realize a working machine that can perform a wide range of work extremely efficiently, which has not been realized with a single work arm in the past.

If the first working machine 11 and the second working machine 12 adjacent to each other are arranged perpendicular to the traveling direction of the traveling vehicle body 13 and are stacked in a row by the connecting body 2, By being fixedly mounted in a row in the connecting body 2, the traveling body 13 is fixed.
Are provided in parallel with each other in the running direction, so that the running arm 8 is excellent in running stability and a structure in which the position of the center of gravity is stable during work can be obtained.
It realizes a structure suitable for a work site that moves around.

On the other hand, if the first working machine 11 and the adjacent second working machine 12 are arranged in a straight line in the traveling direction of the traveling vehicle body 13 and are stacked in tandem with the connecting body 2, The vehicle body 13 is loaded and fixed in a tandem manner by the connecting body 2.
In the narrow direction, the work can be done with a width that occupies only one lane of the road, for example. Thus, a structure suitable for applications in which work points are continuously present along a substantially straight line is realized.

Further, the first working machine 11 and the second working machine 12 provided on the connecting body 2 of the traveling body 13 are provided with running bodies 91a and 91b, respectively. As long as it is provided so as to be able to be separated, each of the working machines 11 and 12 provided with the traveling body 91 can be loaded on the traveling vehicle body 13 on an inclined surface or the like by itself. The structure in which the body 91 is detachably fixed to the connecting body 2 makes it possible to extremely easily assemble the body on site. Moreover, when transporting the airframe, a large traveling body 13 supporting the connecting body 2 and two small working machines (the first working machine 11 and the second working machine 1
2) It can be easily transported separately in three. Moreover, it is also possible to provide such that the connection is released and the work is performed individually.

If the traveling body 13 on which the first working machine 11 and the second working machine 12 are loaded is the towing carrier 92, the working machines 11, 12 are loaded on a carrier such as a trailer, and It enables high-speed movement, and allows a wide range of work to be performed quickly at a desired location.

The first working machine 11 and the second working machine 1
2 is traveling on the track of a predetermined rail 93, for example, traveling on the track of a rail of a train, for example, in unloading work at a port or the like. It is suitable for applications that move back and forth between the warehouse and the ship, and where the work points are continuous on the track, such as inspection and cleaning of tunnels. It can be done quickly.

As described above, the load-type twin-arm working machine 1 of the present invention is used as a working machine for civil engineering and construction work even in an aging society where there is a concern that there may be a shortage of workers. With this work arm, two works can be performed individually and simultaneously, and a simple construction, safe and relatively large force can be exerted, and a work machine for construction work that can perform a wide range of work efficiently can be realized. .

[0042]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 14 show an embodiment of the present invention. FIG. 1 shows a case where the present invention is applied to a hydraulic excavator used in civil engineering work or construction work. In the load-type twin-arm working machine shown in FIG. 1, a revolving body 14 rotates about a vertical axis through a revolving bearing. A refractible single working arm 8 composed of a boom 16 and an arm 17 at the tip thereof is supported so as to be able to swing up and down near the pivot axis of the revolving body 14, and an attachment 18 is attached to the tip of the arm 17.
A first working machine 11 (hydraulic shovel) comprising: a second working machine 12 (a second hydraulic machine) adjacent to the first working machine 11 and having substantially the same structure as the first working machine 11. Excavator)
And a revolving base 90 for supporting the revolving unit 14 of the first working machine 11
a that fixes the rotary table 90a and the swivel 90b of the second working machine
A right operating lever 21a for hydraulically operating the right working arm 5 of the working machine 11 located on the right side and the working machine 1 located on the left side.
2 left operating lever 21b for hydraulically operating the left working arm 6
And an operating section 7 having a pair of arm levers 38 on both the left and right sides.

The revolving unit 1 of the first working machine 11
Although not shown in the drawing for the sake of space, the revolving tables 90a and 90b are fixed on the coupling body 2 with stoppers so that the revolving unit 4a and the revolving unit 14b of the second working machine 12 have substantially the same axial direction. The connecting body 2 is rotatably mounted on the traveling vehicle body 13.

Here, the bending direction of each link portion of the working arm 8 is pivotally supported so as to be movable only in one axial direction. 1, 19 is a hydraulic cylinder, 23 is a pair of traveling pedals for operating the traveling vehicle body 13, and 26 is a caterpillar.

The operation unit indicated by 7 in FIG.
A right operating lever 21a for hydraulically operating the right working arm 5 of the working machine 11 located on the right side;
And a left operating lever 21b for hydraulically operating the left working arm 6 of the first embodiment. The left and right operation levers indicated by 21a and 21b are arm levers 38 each having an arm shape and extending from the elbow of the worker's arm to the fingertip as indicated by 40 in FIG. 7B. The operating section 7 is provided with a pair of arm levers 38 on the left and right. In FIG. 7, arrows indicate the refraction directions of the respective link portions.

When the first working machine 11 and the second working machine 12 are loaded and fixed on the connecting body 2, the connecting body 2 shown in FIG. (90b)
Is moved in the direction of the arrow shown in the figure so that it can be separated.
0 is fixed with a bolt 101.

On the other hand, the one shown in FIG. 2 has a first working machine 11 provided with a running body 91a and a second working machine 12 provided with an adjacent running body 91b arranged in the running direction Y of the running body 13. 6 (b), each traveling body 91 is moved in the direction of the arrow in the figure, locked by a removable car stop 102, and fixed in a cascade.

The operation unit 7 shown in FIG.
2 shows an example of tandem stacking and fixing provided on the connecting body 2 in the X direction orthogonal to the running direction Y. Note that FIG. 2 has substantially the same configuration as FIG. 1, and the same reference numerals are given to common portions, and detailed description is omitted.

The first working machine 11 and the adjacent second working machine 12 shown in FIGS. 1 and 2 are arranged in a straight line in the running direction Y, and are stacked and fixed by the connecting body 2 in tandem. if there is,
Even if the swivel table (here, the running body 91) shown by 90 in FIG. 6 is fixed, the swiveling bodies 14a and 14b located above the swivel body can freely swivel, and can be turned in the front direction of the operation unit 7 (X in the figure). (In the direction shown), both of the two working arms 8 can be turned. Moreover, since the traveling device 13 forms the direction indicated by Y in the drawing, the loading structure is suitable for applications in which work points continuously exist substantially along the Y-direction line. And
Working arm 8 composed of boom 16 and arm 17
Is movable in a wide turning area obtained by the long arm of the boom length and the arm length.

Although the drawing is omitted due to space limitations, the loading direction is the second working machine 12 adjacent to the first working machine 11.
May be arranged on the X-axis perpendicular to the traveling direction Y of the traveling vehicle body 13 and stacked and fixed by the connecting body 2 in a tandem manner.

On the other hand, the loading type twin arm working machine 1 shown in FIG. 3 is provided with the operation unit 7 shown in FIGS. I'm making it. Here, similarly to the above, the operating unit 7 has a right operating lever 21a for hydraulically operating the right working arm 5 of the working machine 11 located on the right side and a left operating lever 6 for hydraulically operating the left working arm 6 of the working machine 12 located on the left side. A pair of left and right arm levers 38 having both left and right operation levers with the operation lever 21b are provided. In addition, 20 is a worker,
Other configurations in FIG. 3 are substantially the same as those in FIGS.
The same reference numerals are given to common portions, and detailed description is omitted.

The revolving structure 14 located above the revolving structure 14 can be freely swung similarly to the above-described tandem connection, regardless of whether the traveling body 91 is fixed or the horizontal row-shaped loading and fixing structure shown in FIG. In addition, the work can be performed by turning both of the two working arms 8 in the direction indicated by Y in the drawing. Moreover, since the traveling device 13 also forms the direction indicated by Y in the figure, both the working point direction and the traveling direction form the direction indicated by Y,
The loading structure is highly mobile. The working arm 8 composed of the boom 16 and the arm 17 is movable in a wide turning area obtained by the long arm having the boom length and the arm length.

Although the drawing is omitted due to space limitations, the loading direction is the second working machine 12 adjacent to the first working machine 11.
May be arranged on the X-axis perpendicular to the traveling direction Y of the traveling vehicle body 13 and stacked and fixed in a row in the connecting body 2.

Next, in the loading type twin-arm working machine shown at 1 in FIG. 4, a traveling body 13 on which a first working machine 11 and a second working machine 12 are loaded is constituted by a tow carrier 92, and a connecting body 2 is provided.
Also has a structure that is also used by the towing carrier 92 of the traveling vehicle body 13. Here, the towing carrier 92 is towed by the trailer 105 and moves.

On the other hand, in the loading type twin-arm working machine shown at 1 in FIG. 5, a traveling body 13 on which a first working machine 11 and a second working machine 12 are loaded is constituted by a towing carrier 92, and Is traveling on a track of a predetermined rail 93. In such a structure, the vehicle may be moved by being pulled by a locomotive or being pulled by a rope as shown by 106 in the drawing.

The operation section may be provided in the trailer 105 shown in FIG. 4 as long as it has both left and right operation levers, or may be remote-controlled as shown in FIG. I don't care. FIGS. 4 and 5 have substantially the same configuration as FIGS. 1, 2 and 3, and the same reference numerals are given to common parts, and detailed description is omitted.

In this embodiment, the method in which the stopper 100 is fixed by the bolt 101 or the method of loading and fixing by the lock by the wheel stopper 102 has been described. However, it may be fixed by other parts. Although the rail 93 shown in FIG. 5 is a convex rail, the rail 93 may be a buried concave. That is, the present invention is not limited to the above embodiments, and various modifications are possible based on the spirit of the present invention, and these are not excluded from the scope of the present invention.

Next, an application example of the present invention having two working arms in the above-described connection configuration will be described with reference to FIGS.

A1 (first working machine 11), A2 (connecting body 2), A3 (second working machine 12) indicated by a thick dotted line Z in FIG.
Shows a state in which the right working arm 5 is connected to and fixed to each other, and the right working arm 5 is installed on A1 and the left working arm 6 is installed on A3. The member 7 gripped by these two working arms
Reference numeral 5 indicates that when the working arms 5 and 6 move in the direction indicated by F1 in the drawing (the direction in which the member 75 is contracted), they receive a reaction (the direction indicated by f in the drawing). However, the substantially triangular loop B shown by the right working arm 5-A1-A2-A3-left working arm 6 has a fixed A1-A2-A3, so that the reaction force is not lost and the reaction force is not lost. Cancel the vector and increase the force F1
Can be applied to the member 75. Also in the direction indicated by F2 in the figure (direction in which the member 75 is extended), the reaction force is canceled by the substantially triangular loop B and a large force is applied by the two working arms, as in the case of the F1 direction. Can be. Therefore, for example, when compared with a configuration of two working machines that are not connected,
The mutual displacement of the aircraft occurs and the reaction force escapes,
Although a large force cannot be applied to the object, the working machines of the coupling structure can exert a large force without escaping the reaction force because their relative positions are fixed.

Further, when a force is applied by the working arms 5 and 6 in the direction indicated by F3 in the drawing (the direction in which the member 75 is bent),
The working arms 5 and 6 can be made to act on substantially the same working point. For example, one of the working arms fixes the member 75 and the other working arm performs the bending process, or both the working arms 5 and 6 In step 6, the bending operation can be performed by applying a bending force. In this way, when the member 75 is in a free state with one working arm, a member that cannot apply a bending force or the like well can be used.
With two working arms, the working force can be easily applied to the working point without escaping.

In a portion indicated by a thick dotted line Z in FIG. 9, a first working machine 11 and a second working machine 12 are fixed by a connecting body 2 shown by oblique lines in the figure, and working arms 5 and 6 are attached thereto. Indicates that each is installed. Here, the bucket 60 lifted by the work arm 5 in the figure is a tool 9 for scooping soil, sand, pebbles, and the like. On the other hand, when the earth and sand in the bucket 60 is heavy, or when the work arm 5 must be fully extended to perform the work, the position of the center of gravity of the body moves forward, and the danger of falling or the bucket 60 shakes. Or
Although there is a risk of spilling earth and sand by tilting, a structure that secures a stable center of gravity with a connection structure can lift a farther and heavier object, and furthermore, the connection shown in FIG. Bucket 6 with another working arm
By holding the bottom side surface of 0, etc., the lifting operation can be stably performed.

Further, the work arm 6 is provided on a fixed object such as the ground shown by G in the figure, and a fixed loop shown by Y in the figure is formed, so that the center of gravity is fixed, and the object is applied with a large force without danger of falling. You can lift things. This is because, in the case of a normal working machine, a machine that floats when the work arm is extended and hardly obtains a lifting force is supported by a fixed loop indicated by Y in the figure, and a much larger lift is achieved. It produces power. Moreover, since the point indicated by G in the figure is the work arm, it can be provided at any position according to the situation at the work site.

In the portion indicated by the thick dotted line Z in FIG. 10, the first working machine 11 and the second working machine 12 are fixed by a connecting body shown by oblique lines in the figure. 6 indicates that each is installed. Here, one working arm 6 grasps a concrete wall 54 which is a fixed object G, and the other working arm 5 grasps a hammer 55 serving as a breaking tool 9. Here, reference numeral 74 in the figure denotes a rope for preventing the tool 9 from coming off. Therefore, by swinging the boom and the arm, even if the operation is slow, if the swinging operation is performed in a continuous operation as if the snap of the wrist is effective, the tip of the hammer 55 having the elongated handle can be obtained. Can obtain a large acceleration and generate a large destructive force in the direction indicated by the arrow in the figure. This is because the body is not swung in reverse by the reaction of the inertia of the tool 9 and is supported by a fixed loop shown by Z in the drawing because of the connection configuration.
5 is obtained because a large force can be applied to 5. Therefore, the concrete wall 54 hit by the hammer 55 is destroyed, but even if the entire wall is broken and collapses, it does not collapse at once if supported by the work arm 6. Safe work can be performed.

The portion indicated by the bold dotted line Z in FIG. 11 is that the first working machine 11 and the second working machine 12 are fixed by a connecting body shown by oblique lines in FIG. Indicates that each is installed. Here, one working arm 6 grips a concrete piece 56 and the other working arm 5 grips a nipper 58 which is a cutting tool 9. Here, for example, in a building collapsed or dismantled site due to an earthquake disaster, in a work for dismantled material, a steel frame 57 is buried in a concrete piece shown by 56 in the figure, so the work arm 6 is Even if 56 can be lifted in the direction of the arrow in the figure, it is necessary to cut the steel members 57 manually to move them.
Concrete pieces 56 held without human assistance
The steel frame material 57 entangled in the
It can be cut with a nipper 58 using a lever.
Therefore, the work arm 6 can move the concrete piece 56 smoothly and efficiently without interrupting the work.

The portion indicated by the bold dotted line Z in FIG. 12 shows that the first working machine 11 and the second working machine 12 are fixed by a connecting body shown by oblique lines in FIG. Indicates that each is installed. Here, one work arm 6 grasps the block 59, and the other work arm 5 assists in assembling the block stack. That is, the work arm 5 has a role of pressing the block 59 assembled in the direction shown by the arrow in the drawing, and prevents the block assembly state from being collapsed, while the work arm 6 supplies the block 59 one after another. Is in charge of Each of them performs two different tasks independently and simultaneously, and the connected working arms move according to the progress of the work and move the work point,
Since the relative positional relationship between the working arms is constant,
The working positional relationship can be easily grasped.

The portion indicated by the bold dotted line Z in FIG. 13 is that the first working machine 11 and the second working machine 12 are fixed by a connecting body shown by oblique lines in FIG. Indicates that each is installed. Here, one of the working arms 6 grasps the dust remover 62 which is the defense tool 9, and the other work arm 5 grasps the nail remover 61 which is the crushing tool 9 to perform work at a high place. Two different tools 9 can be provided on both working arms 5 and 6, and different works can be performed at the same working point. Therefore, the concrete wall 54 located at a high place is dismantled by the nail puller 61 using one of the working arms 5 and dismantled.
The other work arm 6 receives the debris 56 generated by dismantling by the dust collector 62 so as not to fall. Although the treatment of the falling object is an important point related to human life, due to the connection structure, when the work points move one after another to move the dust collector 62 for processing the falling object along the work point, a relative positional relationship is required. Regardless of the traveling movement (in the X direction in the figure), the two working arms 5 and 6 can easily grasp the positional relationship, and can safely and smoothly perform work such as dropping object processing.

The portion indicated by the bold dotted line Z in FIG. 14 shows that the first working machine 11 and the second working machine 12 are fixed by a connecting body shown by oblique lines in FIG. Indicates that each is installed. Here, one work arm 5 grasps the product equipment 63 for building assembling,
The other work arm 6 carries out a lift work while holding the equipment 63 therebetween. If the equipment 63 is to be gripped by only one working arm 5, a rotational moment is generated in the direction indicated by Ri in the figure due to the position of the center of gravity, which makes the equipment 63 slippery. Therefore, it is necessary to pinch the object with a strong force. However, when the product (equipment 63) is likely to be crushed or damaged and the equipment 63 is provided in the Rj direction so as to match the assembling posture, a dotted arrow in FIG. Products shown (Equipment 6
Distortion occurs around the holding position 3), which causes cracks and the like. On the other hand, when supporting the lower side of the equipment 63 with the other work arm 6, the factor of Ri or Ri or the dotted arrow is canceled, and the work arm 63 is preferred with almost no need for the clamping force of the work arm 5. It is possible to maintain the posture. The equipment 63 maintained in the assembling posture maintains the posture until the assembling position (the direction indicated by X in the drawing) because the relative positional relationship between the two working arms 5 and 6 is kept constant in the connection configuration. You can travel and carry.

As described above, as shown in the application example, the two working arms having a fixed connection structure can exert a large force and can efficiently cope with a wide range of work.

[0069]

According to the present invention, two works can be performed individually and simultaneously with two work arms loaded on a traveling vehicle body, and a relatively large force can be exerted with a simple structure and safe. Thus, it is possible to provide a work machine for construction work that performs a wide range of work efficiently.

Further, it is possible to easily realize a configuration in which the sheets are stacked and fixed in rows or columns according to the work.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a second embodiment.

FIG. 3 is a sectional view showing the structure of a third embodiment.

FIG. 4 is a perspective view showing a fourth embodiment.

FIG. 5 is a perspective view showing a fifth embodiment.

FIG. 6 is a view showing a loading and fixing method, wherein (a)
(B) is a conceptual diagram.

7A and 7B show an arm lever, wherein FIG. 7A is a top view and FIG. 7B is a side view.

FIG. 8 is a principle view showing an application example.

FIG. 9 is a principle view showing an application example.

FIG. 10 is a principle view showing an application example.

FIG. 11 is a principle view showing an application example.

FIG. 12 is a principle view showing an application example.

FIG. 13 is a principle view showing an application example.

FIG. 14 is a principle view showing an application example.

FIG. 15 is a perspective view showing a conventional example.

FIG. 16 is a perspective view showing the operation unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Twin arm working machine 2 Connecting body 3 Traveling frame 5 1st working arm (located on the right side) 6 2nd working arm (located on the left side) 7 Operation part 8 Working arm 11 1st working machine (hydraulic shovel) 12 Second work machine (hydraulic excavator) 13 Traveling vehicle body 14, 14a, 14b Revolving body 16 Boom 17 Arm 21 Operating lever 21a Right operating lever 21b Left operating lever 23 Pedal lever 38 Arm lever 90a, 90b Swivel base 91a, 91b Traveling body 92 Towing bed 93 Rail

Claims (6)

[Claims] 1. A revolving body is mounted on a revolving body via a revolving bearing so as to be revolvable about a longitudinal axis, and a revolving work arm comprising a boom and an arm at the tip of the revolving body is supported on the revolving body in an up-and-down manner. A first working machine, a second working machine adjacent to the first working machine and having substantially the same structure as the first working machine, a revolving base for supporting a revolving body of the first working machine, and a second working machine. A connecting body for fixing a turning table of the first working machine, an operating lever for operating a working arm of the first working machine, and a second
An operating unit having both an operating lever for operating a working arm of the working machine, wherein the first working machine and the second working machine are arranged so that their axial directions substantially coincide with each other on the connected body of the traveling vehicle body. A loading type twin arm working machine, which is loaded and fixed on a connecting body 2. 2. The loadable twin arm according to claim 1, wherein the first work machine and the adjacent second work machine are arranged side by side at right angles to each other in a direction perpendicular to the traveling direction of the traveling vehicle body. Work machine. 3. The loadable twin arm according to claim 1, wherein the first work machine and the adjacent second work machine are arranged in a straight line in the running direction of the running vehicle body and fixed in a tandem with a connecting body. Work machine. 4. The vehicle according to claim 1, wherein the first working machine and the second working machine provided on the connecting body of the traveling vehicle body each have a running body, and are fixedly detachable from the connecting body. The loading twin-arm working machine according to 1, 2, or 3. 5. The loading-type twin-arm working machine according to claim 2, wherein the traveling vehicle body on which the first working machine and the second working machine are loaded is a tow carrier. 6. The loading twin-arm working machine according to claim 2, wherein a traveling vehicle body carrying the first working machine and the second working machine travels on a predetermined track.