JPH0563590B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is capable of separating reinforcing bars and concrete lumps from crushed materials produced when a reinforced concrete structure is destroyed, and of grasping and crushing large concrete lumps into smaller concrete lumps. Regarding machine and concrete crusher.

Conventional technology When a reinforced concrete structure such as a building is destroyed, a mixture of reinforcing bars and concrete lumps is created, but post-processing after the structure is destroyed involves work to separate the reinforcing bars and concrete lumps in the mixture, and concrete There is work in which the blocks are crushed into small pieces to be used as crushed stone for roads.

Devices used for such post-processing include, for example, Japanese Utility Model Publication No. 61-28839 and Japanese Unexamined Patent Publication No. 59-187976.
A device such as that described in the publication is known. This device uses a bucket-shaped member having a fixed lower blade and a movable upper blade to crush concrete blocks into small pieces.

Problems to be Solved by the Invention The above-mentioned crushing device has a drawback in that when scooping a mixture of concrete lumps and reinforcing bars, the reinforcing bars get in the way and it is difficult to scoop the mixture properly. Therefore, when trying to crush a concrete mass into small pieces, first separate the concrete mass and reinforcing bars using a separate device, pile up the concrete mass in a mountain shape so that it can be easily scooped out, and then use a crushing device such as the one described above. They were scooping up concrete blocks and crushing them. However, since the concrete mass and the reinforcing bars are intertwined with each other, and the concrete mass is attached to the reinforcing bars, it is necessary to crush the concrete mass into small pieces and separate it from the reinforcing bars. It is desirable to simultaneously process the separation of concrete masses in parallel.
To this end, it is desirable to have a device that can both crush the concrete mass and separate and accumulate the concrete mass and reinforcing bars with a single device.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a gripping machine and concrete lump that can grip and take out reinforcing bars and the like and also crush concrete lumps into small pieces using one device. The purpose is to be able to separate lumps and crush concrete lumps at the same time.

Means for Solving the Problems The present invention provides a link having one end pivotally attached to the tip of a piston rod of a cylinder whose intermediate portion is pivotally attached to the side plate and whose rear end is integrally fixed to the side plate. It has a pair of arms that are pivotally connected to the cylinder and whose tips open and close when driven by the cylinder. and. Each of the above-mentioned arms is formed into a fork shape with a plurality of arm members, and the opposing surface has a concave shape, and is formed into an arc shape whose tips intersect when the arm is closed. The above-mentioned problem was solved by fixing a crushing plate having a tooth shape, and constructing the other arm by a plurality of arm members and a plurality of connecting members that interconnected the arm members.

Function The tips of the pair of arms that open and close are formed so that they intersect with each other when the arms are closed, so the reinforcing bars can be grasped and removed from the mixture of concrete lumps and reinforcing bars. , concrete mass and reinforcing bars can be separated.
Furthermore, since a crushing plate having a tooth shape is fixed to the opposing surface of one arm, when the arm is closed, the crushing plate is held between the two arms by the arm member and the connecting member of the other arm. Can crush concrete blocks. Furthermore, since the other arm is composed of an arm member and a connecting member that connects the arm member, and is provided with a crushing plate having a tooth profile, it can be easily inserted into a mixture of reinforcing bars and concrete mass. The arm member has a hawk shape and can easily scoop up aggregates of concrete lumps, and can also be used for tasks such as depositing concrete lumps in a mountain shape in one place.

Embodiment FIG. 1 is a front view of an embodiment of the present invention, and FIG. 2 is a side view of the same. In FIG. 1, the side plate is removed for ease of explanation. .
Moreover, FIG. 2 shows a view when the piston of the cylinder is extended.

1 and 2 are a pair of arms, with side plates 3 and 3 at the middle part.
The rear end portions 1b, 2b are connected to the links 4, 4 by pins P3, P4.
The links 4 and 5 are pivotally connected to a mounting plate 6 fixed to a piston rod 8 of a hydraulic cylinder 7 by pins P5 and P6. side plate 3,
3 is fixed to a connecting plate 9 while maintaining a predetermined interval, and a hydraulic cylinder 7 is fixed between the connecting plate 9 and the bracket member 10, and the bracket member 10, the hydraulic cylinder 7, and the connecting plate 9 are integrally constructed. ing. The mounting holes 11 and 12 of the bracket member 10 are pivotally connected to the end of an arm of a boom of a working machine (not shown) such as a movable power shovel via a pin.

The tips of arms 1 and 2 are arm members 1a and 2.
a is arranged in a hawk shape, and each arm member 1a, 2
Connecting members 1c and 2c are fixed by welding or the like at a plurality of locations between a. And each arm member 1a,
2a and the rear end portions 1b and 2b of the arm are each pin P.
The arms 1 and 2 are integrally welded to tubular members 1d and 2d which are pivotally connected to the arms 1 and P2.
Furthermore, cutting blades 1e and 2e are fixed to the vicinity of the pivot joints of the pair of opposing arm members 1a and 2a, and the cutting blades 1e and 2e are adapted to cut reinforcing bars and the like. Furthermore, a crushing plate 2f is fixed to the opposing surface of one arm 2, and the surface of the crushing plate 2f facing the arm 1 is formed with an uneven tooth profile, and when the arms 1 and 2 are closed, the crushing plate 2f 2f, the arm member 1a of the other arm 1, and the connecting member 1c are designed to crush concrete. or,
The arm members 1a and 2a of both arms 1 and 2 are formed in an arc shape with a concave portion on their opposing surfaces, and their tips intersect when the arms 1 and 2 are closed.

In the above configuration, when the hydraulic cylinder 7 is operated to shorten the piston rod 8, the first
As shown by the solid lines in the figure, the arm members 1a and 2a expand around the pins P1 and P2, and when the piston rod 8 is extended, as shown by the broken lines in FIG.
The arm members 1a, 2a perform a closing operation. Therefore, when grasping and taking out reinforcing bars and other objects, the reinforcing bars and other objects are held between both arm members 1a and 2a, or between arm member 1a and crushing plate 2f, and are taken out. At this time, the tips of the arm members 1a and 2a cross each other, so that the reinforcing bars and other objects to be gripped can be reliably gripped. In addition, when crushing concrete, the arm members 1a and 2a are opened and the concrete mass is scooped with arm 1 (hereinafter referred to as the scooping arm), and then both arms 1 and 2 are closed. , 2 is crushed into small concrete lumps by the crushing plate 2f, the arm member 1a, and the connecting member 1c. Further, the reinforcing bars can be cut by the cutting blades 1e and 2e.

In this way, post-processing work after crushing a reinforced concrete structure such as a building can be done by separating the concrete mass and reinforcing bars using the single gripping machine and concrete crusher, and also by dividing the concrete mass into small pieces. can be crushed into small concrete blocks. Further, the scooping arm 1 can be used to collect and accumulate concrete lumps, or to collect only reinforcing bars, allowing for efficient post-processing work after the destruction of a concrete structure.

Furthermore, even when reinforcing bars with some concrete lumps attached are collected and a mixture of these reinforcing bars and concrete lumps is sandwiched to remove the concrete lumps from the reinforcing bars, arm 2 has a toothed surface on the opposing surface. It is difficult to scoop up the concrete when the reinforcing bars engage with each other, but since the scooping arm 1 does not have a tooth profile, it can be easily scooped out, and the concrete and the reinforcing bars can be completely separated. In addition, when arm 1 saves a collection of concrete lumps, including ones mixed with reinforcing steel, and crushes the concrete lumps, the crushed concrete lumps are separated from the space formed between the arm member of arm 1 and the connecting member. fall through. That is, the concrete mass is finely crushed to a size that can pass through the space, and the crushed concrete pieces are uniform and have a predetermined size or less. And since it is separated from the reinforcing bars, the crushed concrete pieces can be reused as they are.

In the above embodiment, the hydraulic cylinder 7 is arranged in the vertical direction, and the arms 1 and 2 are opened and closed by extending and contracting the piston rod 8 in the vertical direction. However, the hydraulic cylinder 7 is arranged in the horizontal direction. Alternatively, the crushing plate 2 may be configured to open and close the arm.
Although f is fixed to only one arm 2, it may be fixed to both arms. Furthermore, each arm member 1a, 2
Although rod-shaped connecting members 1c and 2c between a are used in this embodiment, they may also be plate-shaped.
At that time, the communication member of the scooping arm 1 is the arm member 1a.
By arranging it so that it is on the same plane as the opposing surface, it may be possible to make it easier to perform the subdivision work.

Effects of the Invention The present invention is capable of separating reinforcing bars and concrete lumps from a mixture of reinforcing bars and concrete lumps using a single device, and is also capable of grasping and carrying reinforcing bars, etc. It is also possible to crush the lumps into smaller pieces. Therefore, the reinforcing bars and concrete mass can be separated and accumulated. In this case, the arm without the toothed crushing plate can be easily inserted into the concrete mass mixed with reinforcing bars, and the pair of arms can be closed by inserting the arm into the mixture of reinforcing bars and concrete mass. It is also possible to crush concrete lumps attached to reinforcing bars into small pieces. In addition, if the concrete lump separated from the reinforcing steel is scooped up by an arm that is not equipped with a crushing plate having the above-mentioned tooth profile and the pair of arms are closed, the concrete lump is crushed and a space is formed between the arm member and the connecting member. It will be shredded into pieces small enough to fall through. As a result, the crushed concrete pieces become uniform pieces with a predetermined size or less, and since they are separated from the reinforcing bars, the crushed concrete pieces can be reused as they are. Also, each reinforcing bar is
It can be held and carried and accumulated at a predetermined location, and since concrete lumps do not mix with the aggregate of reinforcing bars, it is convenient for reusing reinforcing bars.

As in the past, a device for breaking concrete blocks into small pieces is attached to a work machine such as a power shovel.
If this device works, only one machine is needed to perform the task of dividing into small pieces, then installing a device to transport the reinforcing bars, accumulating the reinforcing bars, and then collecting the concrete lumps. The number of installation/replacement operations is reduced, and these operations can be processed in parallel, making it possible to efficiently perform post-processing operations after the reinforced concrete structure is destroyed.

[Brief explanation of the drawing]

FIG. 1 is a front view of one embodiment of the present invention with one side plate removed, and FIG. 2 is a side view of the same embodiment with the piston rod of the hydraulic cylinder extended. 1, 2... Arm, 3... Side plate, 4, 5... Link, 6... Mounting plate, 7... Hydraulic cylinder, 8...
...Piston rod, 10...Bracket member, 1
a, 2a...Arm member, 1c, 2c...Connecting member, 2f...Crushing plate, 1e, 2e...Cutting blade.

Claims (1)

[Claims] 1 The intermediate part is pivotally attached to the side plate, the rear end is pivotally attached to the other end of a link whose one end is pivoted to the tip of the piston rod of a cylinder that is integrally fixed to the side plate, and is driven by the cylinder. It has a pair of arms whose tips open and close, and each arm is formed into a fork shape with a plurality of arm members, and has a recessed surface on the opposing surface, and is formed into an arc shape whose tips intersect when the arms are closed. A crushing plate having a tooth shape is fixed to the middle part of the opposing surface of one arm, and the other arm is a gripper and a gripping machine that is composed of a plurality of arm members and a plurality of connecting members that interconnect the arm members. Concrete crusher.