JPH0812242A - Irons/steels attracting transport device - Google Patents

Abstract

PURPOSE:To provide a irons/steels attracting transport device for classifying and transporting irons/steels such as iron scraps from the crushing site of a construction using a usual shovel. CONSTITUTION:A main body case 13 attached detachably, a permanent magnet/ steels, 14 which is built in the main body case and attracts irons, and a hydraulic actuator 16 for exchanging over the magnetization and demagnetization of the permanent magnet are provided i.n a bucket 9 provided at the tip of the movable arm 6 of a crawler shovel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an iron adsorbing and transporting device which is mounted on a backhoe or the like for recovering crushed concrete at a structure dismantling work site and for sorting and recovering internal reinforcing bars and other steel frames.

[0002]

2. Description of the Related Art At the site of dismantling a structure, the crushed concrete is buried as industrial waste with a part of internal reinforcing bars, steel frames and the like included. However, nowadays when concrete waste is recycled by recycling, the reinforcing bars and steel frames contained in the concrete are separated, and the remaining concrete, glass, plastic, wood, etc. are separated and collected by another means.

Conventionally, iron contained in a crushed concrete block is artificially recovered, or a lifting magnet 30 as shown in FIG. Iron was adsorbed by and was temporarily collected and collected in the iron scrap storage area. Especially in the latter case, the situation around the feet at the dismantling work site is bad,
The running function by the caterpillar was advantageous, and efficient work could be expected.

The lifting magnet 30 is often an electromagnet for adsorbing a large amount of iron material and collecting it in the iron scrap storage site. Generally, a generator 31 for generating electromagnetic waves is separately provided. Electricity is sent to the lifting magnet 30 via the cable 32, and when excavating the iron material, it is energized to move the shovel 33 to the iron scrap storage area, the energization to the lifting magnet 30 is stopped, and the attracted iron material is released. It was operated to move again.

[0005]

However, when the generator 31 is separately provided and the work is performed via the cable 32, the cable 32 may be stepped on and cut by the caterpillar of the shovel 33. The center of gravity of the shovel changes when it is mounted on the 33, and there is a serious problem in its drivability. Also, since the generator 31 is placed in the vicinity of the operator of the shovel 33, the work becomes extremely harsh due to noise. appear.

For this reason, a built-in generator in which a generator is directly connected to the engine power of the shovel body is also considered, but since the shovel itself is a standard type and is used for multiple purposes, it is made into a special machine and used for various purposes. There is a problem in dealing with the construction, and there is a problem that it is not used often.
The present invention has been made in view of the above circumstances, and an object thereof is to use a conventional standard type shovel as it is, and an iron adsorbing and conveying device that operates only when adsorbing iron to the arm tip of the shovel. Is to provide.

[0007]

In order to achieve the above-mentioned object, the iron adsorbing and conveying device of the present invention is (1) detachably mounted in a bucket provided at the tip of a movable arm of a self-propelled shovel. It is characterized in that it is provided with a permanent magnet that is mounted and that attracts iron and the like, and a hydraulic actuator that switches and operates the permanent magnet. (2) An electromagnet that is detachably mounted in a bucket provided at the tip of the movable arm of a self-propelled excavator and that adsorbs iron, a hydraulic motor that excites and demagnetizes this electromagnet, and a generator are provided. It is characterized by.

[0008]

[Operation] The iron adsorption transporter with the above structure operates the shovel arm to perform the crushing work of the structure while separating irons such as rebar from the crushed concrete and collecting them in the bucket, By exciting and adsorbing only irons by magnetic force to move freely in the work site and demagnetize the magnetic force in the bucket at the iron scrap storage site, safe and reliable work can be performed. Since the bucket can be easily attached and detached easily, by attaching an iron adsorption transporter to a hoe bucket, ripper bucket, etc., it can be attached to a standard excavator that has been used conventionally. Can perform a wide range of work.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below by dividing them into a first embodiment and a second embodiment. The first embodiment uses a permanent magnet as the magnet, and the second embodiment uses an electromagnet as the magnet. In FIG. 3, the shovel 1
On a flora 3 equipped with a caterpillar 2, there is a cockpit 4 and an arch-shaped boom 5 which are rotatably provided, and an arm 6 whose tip is vertically rotated is provided on the boom 5. There is. The boom 5 is rotatably formed by a first hydraulic cylinder 7 with its lower end as a fulcrum, and the arm 6 is pivotally supported by the upper end of the boom 5 and a second hydraulic cylinder provided on the boom 5. It is adapted to be rotated in the vertical direction by 8.

For example, a hoe bucket 9 is rotatably provided at one end of the arm 6, and the hoe bucket 9 is provided with a third hydraulic cylinder 10 provided in the arm 6.
It is designed to be rotated by. Such an excavator 1 is operated by various operating switches (not shown) provided in the cockpit 4, and is driven by the caterpillar 2 to move forward and backward and turn clockwise and counterclockwise. By moving the shovel 1 to a predetermined position, turning the boom 5 in a required direction and operating the first, second and third hydraulic cylinders, the hoe bucket 9 is operated to excavate the ground. It is possible to crush and remove structures and structures.

The bow bucket 9 is provided with a palm-shaped bucket portion 11, and the iron adsorbing and conveying device 12 of this embodiment is provided.
Is a body case 13 that is stored and mounted in the bucket portion 11.
The main body case 13 has a built-in permanent magnet 14 as shown in FIG. The permanent magnet 14 is, for example, a rectangular lifting magnet, is provided on the bottom surface portion of the main body case 13, and is attached so that the magnetic force acts downward and downward via the bottom surface portion.

A switching lever 15 for exciting and demagnetizing is provided on one side surface of the permanent magnet 14. When the switching lever 15 is tilted to one side, the magnetic nucleus provided in the magnet is magnetized. The permanent magnet 14 in line with the NS direction of
Is excited to adsorb iron. Also, the switching lever 1
By tilting 5 toward the other side, the NS direction of the magnetism is reversed, and the permanent magnet 14 is temporarily demagnetized, so that the adsorption of irons is abandoned.

The rod portion of the lever switching hydraulic cylinder 16 is engaged with the switching lever 15 of the permanent magnet 14, and the switching lever 15 is biased or reversely biased by the lever switching hydraulic cylinder 16. Is rotated in the left-right direction in FIG. 1 to energize or demagnetize the permanent magnet 14. The urging or reverse urging of the lever switching hydraulic cylinder 16 is performed through a conduit 18 via a union joint 17 attached to the main body case 13, and the switching valve is operated in the cockpit 4. .
Note that FIG. 2 shows an example in which a plurality of permanent magnets 14 are provided.
In this case, the bar member 19 common to each switching lever 15
The rod portion of the lever switching hydraulic cylinder 16 is rotatably provided on the bar member 19.

Iron adsorption and transportation device 12 having the above-mentioned structure
A plurality of downwardly bent claw portions 20 can be attached to the outer tip of the. This claw 20
Thus, by operating the hoof bucket 9 at a free angle, for example, irons can be dug up from inside the crushed concrete rubble, and irons and the like can be adsorbed by the action of the permanent magnet 14. The iron thus adsorbed is supported at a predetermined height by the operation of the arm 6, and is transported to a predetermined iron scrap storage area by the movement of the shovel 1. Then, when the lever switching hydraulic cylinder 16 is reversely biased at the iron scrap storage site, it is demagnetized and irons can be left.

In FIG. 4, an electromagnet 21 is provided in place of the permanent magnet 14 of the iron adsorption and transfer device 12. The electromagnet 21 is a general one in which a coil is wound around the outer periphery of the core, and a plurality of electromagnets are provided on the bottom surface of the main body case 13. The magnetic force of the electromagnet 21 is generated outside under the bottom surface by excitation. It is supposed to be done. A partition plate 13a is provided on the upper stage of the main body case 13, and the partition plate 13a is provided.
A DC generator 22 and a hydraulic motor 23 are provided on the top. The rotating force of the hydraulic motor 23 is transmitted to the DC generator 22 via the rotating shaft 24, and the DC current generated by this rotating force is transmitted to the electromagnet 21 via the wiring circuit 25 to be excited.

The hydraulic motor 23 is generally used and causes a rotary motion by the hydraulic pressure press-fitted through the energized pipe line 18. A union joint 17 is provided at the outlet of the main body case 13 of the conduit 18, and is connected to a hydraulic device (not shown) on the shovel 1 side. Further, a plurality of downwardly bent claw portions 20 are attached to the outer front end portion of the main body case 13, and the same operational effect as in the case of the first embodiment described above can be obtained.

The iron adsorbing and carrying device 12 according to the first and second embodiments described above is operated by hydraulic pressure, does not generate noise, etc., and performs extremely clean and quiet work. be able to. In any case, iron in the crushed concrete can be selected and transported to a fixed position, and the iron-adsorbing and transporting device 12 can be easily attached and detached, and the main body case 13 can be attached to a bucket interchangeably. With this, you can replace the standard shovel with any bucket. In addition, the iron adsorption transporting device 12 described above may be specially mounted according to various buckets used in the shovel 1, and the entire bucket may be replaced.

[0018]

As described above, the iron adsorbing and conveying device of the present invention is detachably mounted in a bucket of an excavator and has a magnet for adsorbing iron and a hydraulic actuator for exciting or demagnetizing the magnet. Since it has been installed, it has the feature that you can expect safe work without noise simply by mounting it on the bucket of a conventional shovel and connecting the piping path to the hydraulic actuator via the boom and arm of the shovel. .

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an iron adsorptive carrier according to an embodiment of the present invention.

FIG. 2 is a plan view showing the inside of FIG.

FIG. 3 is a side view of a shovel equipped with the iron-adsorbing and conveying device of FIG. 1.

FIG. 4 is a sectional view of an iron adsorptive carrier according to another embodiment of the present invention.

FIG. 5 shows a conventional example, and is an external view showing a state in which a lifting magnet is suspended in a bow bucket of a shovel or the like.

[Explanation of Codes] 1 Excavator 6 Arm 9 Houbucket 12 Iron adsorption transport device 13 Main body case 14 Permanent magnet 16 Lever switching hydraulic cylinder (hydraulic actuator) 20 Claw 21 Electromagnet 22 Generator (direct current) 23 Hydraulic motor

Claims (3)

[Claims] 1. A body case (13) detachably mounted in a bucket (9) provided at the tip of a movable arm (6) of a self-propelled shovel (1), and irons built in this body case. An iron-adsorbing and conveying device (12) comprising: a permanent magnet (14) for adsorbing a magnet and a hydraulic actuator (16) for switching and energizing and deactivating the permanent magnet. 2. A body case (13) detachably mounted in a bucket (9) provided at the tip of a movable arm (6) of a self-propelled shovel (1), and irons built in this body case. An iron-adsorbing and transporting device, comprising: an electromagnet (21) for adsorbing a magnet, a hydraulic motor (23) for exciting and demagnetizing the electromagnet, and a generator (22). 3. The irons according to claim 1, wherein a plurality of claws (20) for collecting irons are attached to the main body case (9) in a detachable manner. Adsorption carrying device.