JP2004255526A - Attachment for scrapping drum can - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an attachment for scrapping a drum can with a configuration for a user to hold edges of a body plate of the drum can assuredly. <P>SOLUTION: This attachment for scrapping a drum can has a first holding plate 17 on a leading end of a back hoe type bucket 14 mounted on an arm of a hydraulic shovel. A swing arm 15 is fixed pivotedly on the arm of the hydraulic shovel in a manner that the arm 15 comes close to or goes away from a hydraulic cylinder 16 against the opening surface of the bucket 14. There is provided a second holding plate 19 on the leading end of the arm 15, for holding a target object between itself 19 and the plate 17, approaching to the plate 17 by extension of the cylinder 16. There is provided a cutter on the end of the arm 15 in such a manner that the cutter is not projected to the plate 17 side further than the leading end of the plate 19 and the cutter is projected into the longitudinal direction of the arm 15 further than the plate 19. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a drum can disassembly attachment that is attached to the tip of an arm of a hydraulic excavator and dismantles a drum can.
[0002]
[Prior art]
When the contents are taken out from the drum containing industrial waste and processed, it is necessary to dismantle the drum. As the drum can disassembly attachment, there is one described in Patent Document 1. The conventional drum disassembly attachment is provided with a cover having a shape covering the bucket opening surface so that the hydraulic cylinder can approach and separate from the opening surface of the backhoe bucket of the hydraulic excavator, and is provided at the tip of the cover at the tip of the backhoe bucket. A plate for gripping the object is provided integrally with the plate, and a cutter for cutting the drum plate of the drum can is provided at the center of the cover-side plate. A groove is provided for inserting the protruding portion of the cutter when grasping the edge of the cutter. The lower edge of the cover-side plate is formed in an arc shape so as to match the outer peripheral surface of the drum.
[0003]
[Patent Document 1]
Japanese Utility Model Registration No. 2537244.
[0004]
[Problems to be solved by the invention]
In the conventional drum disassembly attachment, when the position of the cutter and the position of the groove provided on the plate of the backhoe bucket do not match due to a manufacturing error, or when the position of the cutter and the groove do not match due to backlash generated due to elapse of the use period. There is. When the misalignment between the cutter and the groove occurs, the cutter comes into contact with a portion of the bucket-side plate other than the groove, and a gap is generated between the backhoe bucket-side plate and the swing arm-side plate. There is a problem that the plate cannot be grasped between the plates.
[0005]
Further, when cutting the drum plate portion of the drum can, the portion from the cut portion by the cutter on the upper surface of the drum can to the front end of the drum can is covered with a cover and a plate whose lower edge is applied so as to fit into the arcuate surface of the drum plate. Therefore, there is a problem that the portion of the drum can to be cut is not easily seen by the operator in the cab and the workability is poor.
[0006]
The present invention has been made in view of the above-described problems of the related art, and has as its object to provide a drum can disassembly attachment having a configuration that can securely grip an edge of a body plate.
[0007]
Another object of the present invention is to provide a drum can disassembly attachment in which an operator can easily view the cutting situation of a drum can on a cab.
[0008]
[Means for Solving the Problems]
(1) A drum can dismantling attachment of the present invention includes a backhoe type bucket attached to an arm of a hydraulic shovel,
A first gripping plate attached to the tip of the bucket;
A swinging arm pivotally attached to the arm so as to be close to and releasable from the opening surface of the bucket;
A hydraulic cylinder mounted between the excavator arm and the swing arm,
A second gripping plate attached to a tip of the swing arm and gripping an object between the first gripping plate and the first gripping plate closer to the first gripping plate as the hydraulic cylinder extends. ,
A cutter provided at the tip of the swing arm so as not to project from the tip of the second grip plate toward the first grip plate, but to protrude from the second grip plate in the longitudinal direction of the swing arm. And characterized in that:
[0009]
(2) Also, in the drum can disassembly attachment of the present invention, the width of the swing arm and the second gripping plate is smaller than the width between the side plates of the backhoe bucket, and the lower edge of the second gripping plate is straight. It is characterized by forming a shape.
[0010]
(3) The drum can disassembly attachment of the present invention is characterized in that the second gripping plate and the cutter are detachably attached to the swing arm.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a side view showing one embodiment of a drum dismantling machine having a drum dismantling attachment of the present invention. The drum dismantling machine is configured by using a hydraulic excavator. A revolving unit 3 is installed on a traveling unit 1 via a revolving unit 2, and an operator cab 4 and a hydraulic power unit 5 are mounted on the revolving unit 3. I do. The revolving unit 3 includes a boom 7 that is raised and lowered by a boom cylinder 6, an arm 9 that is rotatably attached to the tip of the boom 7 by an arm cylinder 8, and a bucket cylinder 11 and a backhoe bucket 14 rotatably attached by links 12 and 13.
[0012]
A swing arm 15 is attached to the arm 9 by pivotally connecting to a bucket mounting pin 10 so as to be able to approach and separate from the opening surface of the bucket 14. A hydraulic cylinder 16 for swinging the swing arm 15 is mounted between the arm 9 of the excavator and the swing arm 15.
[0013]
FIG. 2 is a side view of the drum disassembly attachment, and FIG. 3 is a view of the attachment viewed from the opening side of the bucket 9. As shown in FIGS. 2 and 3, a first gripping plate 17 is provided at the tip of the bucket 14 by welding or bolting. As shown in FIG. 3, the first gripping plate 17 is formed wider than the bucket 9.
[0014]
Further, the tip of the swing arm 15 is closer to the first gripping plate 17 by the extension of the hydraulic cylinder 16 than the first gripping plate 17, and the second gripping object between the first gripping plate 17 and the first gripping plate 17. And a cutter 20 provided at the center of the second gripping plate 19. As shown in FIG. 3, the width W1 of the swing arm 15 and the width W2 of the second gripping plate 19 have a width (W3> W1, W3> W2) smaller than the width W3 between the side plates of the bucket 14. The lower edge of the second gripping plate 19 is straight.
[0015]
The cutter 20 has an R-shaped cut side, and at the tip portion 19a of the second gripping plate 19 (in a side view as shown in FIG. 2), the cutter 20 is moved from the second gripping plate 19 to the first When the hydraulic cylinder 16 is extended without projecting toward the gripping plate 17, the edge of the second gripping plate 19 abuts on the first gripping plate 17. The cutter 20 is provided such that the tip of the swing arm 15 protrudes in the longitudinal direction from the tip of the second gripping plate 19. The second gripping plate 19 and the cutter 20 are detachably attached to the tip of the swing arm 15 by bolts 21 and nuts 22.
[0016]
FIG. 4 is a diagram for explaining the dismantling operation of the drum can 23 by this drum can disassembly attachment. As shown in FIG. 4 (A), first, the upper edge of the drum can 23 is provided upright and the first gripping plate 17 is used. The drum can 23 is laid down by operating the boom 7 and the arm 9 with the cutter 20 and the first gripping plate 17 is brought into contact with the end face of the drum can 23 as shown in FIG. Cuts the body plate of the drum can 23 in the longitudinal direction. Next, as shown in FIG. 4 (C), the edge of the cut body plate is gripped between the first gripping plate 17 and the second gripping plate 19 and pulled up. Thereby, the body plate of the drum can 23 is peeled off from the end plate by the weight of the one stored in the drum can 23, and the contents can be taken out.
[0017]
In the above-described drum can disassembly attachment of the present invention, the cutter 20 does not protrude from the tip of the second gripping plate 19 to the first gripping plate 17 side than the tip of the swing arm 15, The cutter 20 is provided so as to protrude from the swinging arm 15 in the longitudinal direction of the swing plate 15, so that the cutter 20 does not hinder the edge of the body plate, so that the edge of the body plate can be securely gripped.
[0018]
Further, the width of the swing arm 15 and the width of the second gripping plate 19 are made smaller than the width between the side plates of the bucket 9 and the lower edge of the second gripping plate 19 is made linear. The operator on the cab 4 can easily see the cutting situation of the drum 20. Further, since the cutter 20 and the second gripping plate 19 are detachably attached to the swing arm 15, it is possible to replace the cutter when the cutter is worn, and the replacement becomes easy.
[0019]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the edge of the trunk | drum after cutting can be grasped reliably. Further, the cutting state of the drum body can be easily seen by the operator on the cab.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a drum dismantling machine having a drum dismantling attachment according to the present invention.
FIG. 2 is a side view of the drum can disassembly attachment of FIG.
3 is a view of the drum disassembly attachment of FIG. 1 as viewed from an opening side.
FIG. 4 is a diagram for explaining a working state by the drum can disassembly attachment of the present embodiment.
[Explanation of symbols]
1: running body, 2: swinging device, 3: swinging body, 4: cab, 5: hydraulic power unit, 14: backhoe bucket, 15: swing arm, 16: hydraulic cylinder, 17: first gripping plate, 19: second gripping plate, 20: cutter, 21: bolt, 22: nut, 23: drum

Claims (3)

A backhoe type bucket attached to the excavator arm,
A first gripping plate attached to the tip of the bucket;
A swinging arm pivotally attached to the arm so as to be close to and releasable from the opening surface of the bucket;
A hydraulic cylinder mounted between the excavator arm and the swing arm,
A second gripping plate attached to a tip of the swing arm and gripping an object between the first gripping plate and the first gripping plate closer to the first gripping plate as the hydraulic cylinder extends. ,
A cutter provided at the tip of the swing arm so as not to project from the tip of the second grip plate toward the first grip plate, but to protrude from the second grip plate in the longitudinal direction of the swing arm. With,
A drum dismantling attachment characterized by the following. The drum disassembly attachment according to claim 1,
A drum can disassembly attachment, wherein a lateral width of the swing arm and the second gripping plate is smaller than a width between side plates of the backhoe bucket, and a lower edge of the second gripping plate is linear. The drum disassembly attachment according to claim 1 or 2,
The drum can disassembly attachment, wherein the second gripping plate and the cutter are detachably attached to the swing arm.

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