JPH058302B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a bucket with a crushing device for crushing structures such as reinforced concrete, asphalt for road paving, etc., and crushing the concrete lumps and asphalt lumps produced after crushing into small pieces. .

Conventional technology At concrete demolition work sites for structures such as reinforced concrete, a concrete demolition machine or the like is used to demolish the concrete, and the resulting concrete mass is carried out using a dump truck or the like and discharged to a disposal site such as a landfill. . However, if the concrete lump is large, the amount that can be transported by dump trucks etc. will be small.
Decreases conveyance efficiency. In addition, some dumpsites do not accept large concrete blocks, and if the concrete blocks become small, they can be reused as secondary products instead of earth and sand for land leveling, and concrete blocks can be recycled. It is also currently being reused as aggregate.

For this reason, it is necessary to reduce the concrete mass to a small concrete mass below a certain level, but this process has conventionally been carried out in a concrete crushing plant or the like. However, this plant is rarely used at concrete demolition sites because it is expensive and inconvenient to transport. In addition, small-sized concrete demolition machines are sometimes used to perform small-scale breaking work, but these concrete demolition machines crush concrete chunks by catching them between the crushing blades of two arms that open and close, so they are extremely difficult to break. This method is inefficient, and the size of the crushed concrete blocks varies, making it extremely difficult to form concrete blocks of a certain size. Therefore, an arm that opens and closes within the bucket is provided, and the concrete mass is divided into small pieces using a point provided on the arm and the bucket surface facing the arm, and small holes for sieving are provided in the bucket surface facing the arm. A bucket-type crushing device for breaking concrete into small concrete lumps below a certain size has also been developed as shown in Japanese Patent Application No. 1982-206299. Furthermore, during the demolition work of asphalt-paved roads, most of the asphalt that was removed was broken into small pieces and recycled at a plant for reuse. The process of crushing the peeled asphalt into small pieces was done manually.

Problems to be Solved by the Invention The present invention is convenient to carry and can easily break down concrete or asphalt lumps into small pieces at a concrete or asphalt pavement demolition work site. The objective is to obtain a bucket with a crushing device that can be made uniform in size.

Means for Solving the Problems A plurality of rotating claws are arranged at regular intervals on the bottom of the bucket, and the rotating claws are provided to rotate through gaps between the rotating claws. Additionally, the bottom of the bucket is provided with a plurality of holes.

Function Scoop up concrete lumps or asphalt lumps with the bucket, turn the rotary claws with the bottom of the bucket facing down, and the concrete lumps or asphalt lumps will be crushed by the rotating claws and fixed claws into small pieces, which will be removed from the bucket through the hole at the bottom of the bucket. It is possible to turn concrete or asphalt lumps into uniform pieces of a certain size or less.

Embodiment FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a front view when the left main plate is removed in FIG. 1, and FIG. 3 is a diagram showing the structure of the rotary blade. FIG. 4 is a diagram showing another embodiment.

In FIGS. 1 and 2, reference numeral 1 denotes a bucket to be attached to a hydraulic construction machine such as a hydraulic shovel or a crawler shovel, and the bucket main body is formed by a main plate 2 and side plates 3a and 3b. And the bucket 1
Claws 4 are formed on the main plate 2 on the surface forming the opening surface, and there is no difference in the main plate 2, side plates 3a, 3b, claws 4, etc. from conventional bucket bags.

A crushing device consisting of a plurality of rotating claws 5, a plurality of fixed claws 6, and motors Ma and Mb for rotating the rotating claws 5 is provided at the bottom of the bucket 1. That is, the fixed claws 6 are fixed to the main plate 2 of the bucket bag 2 at a constant interval from each other, and the claws 5a of the rotary claws 5 rotate through the gaps between the fixed claws 6. As shown in FIG. 3, the rotating claws 5 have two claws 5a and 5b separated by 180 degrees from each other to form a rotary cylinder 5c.
The rotating body 5c of the rotating claw 5 is fixed to the
Low speed/high torque motors Ma, Mb (e.g. low speed/high torque motors Ma, Mb)
Rotating shaft 7 driven by a high-torque oil motor)
is fixed with a key 8 or the like, and as shown in FIGS. 1 and 2, the claws 5a and 5b of the adjacent rotary claws 5 are respectively
They are stacked and fixed on the rotating shaft 7 with a phase shift of 90 degrees (the phase difference may be set arbitrarily, or the phase may be the same). Then, the rotating claw 5
Each of the claws 5a and 5b passes between the fixed claws 6 and is rotatable. The rotating shaft 7 is driven by low-speed, high-torque motors Ma and Mb fixed to the side plates 3a and 3b of the bucket 1.
is rotated in the normal direction of arrow a in FIG. 1 and in the reverse direction of arrow b in FIG. Also, the ends 6a and 6b of the fixed claw 6, that is, the rotating claw 5
The introduction portions of the claws 5a and 5b are formed to have tapered tips, making it easier to crush asphalt lumps such as concrete lumps.

Further, the bottom of the bucket 1 is provided with sieve holes S1 and S2 for dropping concrete lumps and asphalt lumps that have become small pieces.

Note that P1 and P2 are attachment holes for attaching the bucket 1 to an arm of a construction machine such as a hydraulic excavator.

Next, the operation of this embodiment will be explained.

First, scoop up a concrete lump or an asphalt lump with the bucket 1, and place the opening of the bucket 1 upward.
Rotate motors Ma and Mb forward with their bottoms facing down.
The rotating claws 5 are rotated in the direction of the arrow a in FIG. 1 by the drive of the motors Ma and Mb via the rotating shaft 7, and the concrete lumps and asphalt lumps in the bucket 1 are fixed to the claws 5a and 5b of the rotating claws 5. Crush into small pieces with fingernail 6. In this way, the concrete and asphalt pieces that have become small pieces fall out of the bucket 1 through the holes S1 and S2, and all the concrete lumps and asphalt lumps in the bucket 1 are broken into small pieces and discharged outside the bucket 1. Note that foreign matter that cannot be crushed by the fixed claw 6 and the rotating claw 5 is removed by the fixed claw 6.
If the rotary claw 5 cannot rotate forward due to being caught between the fixed claws 6, reverse the motors Ma and Mb and rotate the rotating claw 5 in the direction of arrow b in Figure 1. Foreign objects can be removed.

As described above, the present invention divides concrete lumps and asphalt lumps into small pieces, but the present invention
Because it is a baguette, in addition to the above-mentioned subdivision work,
Stop driving motors Ma and Mb and start normal drilling.
Of course, it is also possible to carry out work such as transporting and loading, and it is also possible to scoop up concrete blocks and asphalt blocks, transport them to another location, and install the motor at that location.
By driving Ma and Mb, concrete lumps and asphalt lumps can be crushed, divided into small pieces, and discharged.
It is possible to perform the efficient work of transporting and dividing into small pieces.

FIG. 4 shows another embodiment of the present invention,
The difference between this embodiment and the first embodiment described above is that the rotary claw 9 has three claws 9a, 9b, and 9c that are offset by 120 degrees, and the other points are different from the first embodiment. The same is true, and when attaching adjacent rotating claws 9 to the rotating shaft 7, each claw 9a, 9b, 9c may be fixed with a phase difference of approximately 60 degrees, or even if the rotating claws are in the same phase, the phase of each rotating claw may be adjusted arbitrarily. You can fix it by changing it to

Effects of the Invention The present invention scoops up concrete lumps and asphalt lumps into a bucket, and crushes the concrete lumps and asphalt lumps into small pieces using a crushing device inside the bucket, so there is no need for large equipment as in the past. Concrete lumps and asphalt lumps can be crushed using simple and inexpensive equipment.
It can also perform concrete subdivision work at concrete and asphalt demolition work sites. And since the method of crushing concrete lumps and asphalt lumps one by one is not done as in the conventional method, the efficiency of the crushing work is improved, and the concrete lumps and asphalt lumps crushed in the bucket are broken into small pieces. As the concrete and asphalt lumps fall through the hole in the bottom of the bucket, they become a collection of only those smaller than the hole.
The sizes of concrete blocks and asphalt blocks are standardized, making it convenient to transport and reuse concrete blocks and asphalt blocks, and there is no need to worry about finding a place to dispose of them. In addition, the crusher motor Ma, Mb
If the drive of the bucket is stopped, the functions of a normal bucket can be carried out, so the bucket of the present invention can be used for very versatile purposes such as excavation, conveyance, and crushing, and can also be used for conveying concrete blocks and asphalt blocks. It is possible to accumulate or distribute concrete lumps or asphalt lumps that have been broken into small pieces by breaking them into small pieces at a certain location or at a required location.
Transportation and crushing operations become extremely convenient and efficient.

[Brief explanation of the drawing]

Fig. 1 is a side view of one embodiment of the present invention, Fig. 2 is a front view with the left main plate removed in Fig. 1, and Fig. 3 is a diagram showing the structure of the rotary blade. 4
The figure is a diagram showing another embodiment. 1...bucket, 2...main plate, 3a, 3b...
Side plate, 5, 9...Rotating claw, 5a, 5b, 9a, 9
b, 9c...Claw, 6...Fixed claw, S1, S2...
Hole, Ma, Mb...Motor.

Claims (1)

[Claims] 1. A plurality of fixed claws arranged at regular intervals on the bottom of the bucket, and a rotary claw that rotates between the fixed claws, and a plurality of holes are provided in the bottom of the bucket. A bucket with a crushing device. 2. A bucket cart with a crushing device according to claim 1, wherein the rotating claw is driven by a low-speed, high-torque oil motor provided on a side plate of the bucket cart. 3 The above rotating claw rotates 180 degrees around the rotation axis of the rotating claw.
Consists of two claws placed at a distance,
3. A bucket cart with a crushing device according to claim 1 or 2, wherein the bucket is fixed to an adjacent rotary claw with a phase shift of 90 degrees. 4 The rotating claw is rotated 120 degrees around the rotation axis of the rotating claw.
A bucket cart with a crushing device according to claim 1 or 2, comprising three claws arranged at positions separated by degrees.