JP2005225605A - Grasping device for demolition machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grasping device for a demolition machine in which even small crushed fragments can be easily grasped. <P>SOLUTION: This grasping device is composed of a pair of grasping pawls 23 and 25 installed on a work arm in the demolition machine. For a plurality of projections 30-32, and 33-35 respectively provided on mutually facing surfaces of the grasping pawls 23 and 25, width of the projection in the thickness direction of the grasping pawls is set to become narrower toward the tip side (A1<A2<A3, B1<B2<B3). Among the projections provided on the mutually facing surfaces of a pair of grasping pawls, the width of the projection in the grasping pawl projection arrangement direction becomes narrower as the projection is more on the tip side. Among the projections provided on the grasping pawls, projection height toward the counter side is set higher as the projection is more on the tip side of the grasping pawl. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a gripping device for a dismantling machine, and more particularly to a device having a projection structure suitable for gripping objects of various sizes, such as an automobile dismantling machine.

  A dismantling machine that disassembles automobile scraps, etc. has a hook-shaped gripping device attached to the tip of the working arm of the work machine, and a holding unit that holds the scrap is attached to the traveling body frame so that it can swing up and down. Gripping and crushing the object to be crushed with a pair of gripping claws, disassembling with a blade provided at the base of the gripping claw of the gripping device, etc. The engine and the like are crushed between the crushing tools provided on the opposing surfaces of the right and left pressing tools.

  The pair of gripping claws have a facing structure on the tip side, and a plurality of gripping projections are formed at equal intervals on the facing portion, and the widths of the gripping claws in the thickness direction of each projection are equally formed.

JP 2003-117428 A

  In the conventional gripping device, the protrusions provided on the opposing surfaces of the pair of gripping claws are formed with the same width in the thickness direction of the gripping claws. Therefore, when gripping a thin and small object to be crushed like a harness, If the gripping surface is too large and the thickness of the protrusion is reduced due to wear, there is a problem that gripping is not easy.

  In view of the above problems, an object of the present invention is to provide a gripping device for a dismantling machine that can easily grip a small object to be crushed.

(1) A gripping device for a dismantling machine according to the present invention is a gripping device including a pair of gripping claws attached to a working arm of a dismantling machine.
Of the plurality of protrusions provided on the opposing surfaces of the pair of gripping claws, the protrusion in the distal end side has a narrower width in the thickness direction of the gripping claws.

  (2) In the gripping device of the dismantling machine of the present invention, in (1), among the plurality of protrusions provided on the opposing surfaces of the pair of gripping claws, the protrusion in the protrusion arrangement direction of the gripping claws is closer to the tip side protrusion. It is characterized by narrowing.

  (3) Further, in the gripping device of the dismantling machine of the present invention, in (1) or (2), among the protrusions provided on the gripping claws, the protrusion on the tip side of the gripping claws has a protrusion height toward the other side. It is characterized by being raised.

  According to the present invention, since the width in the thickness direction of the gripping claw of the protrusion on the tip side of the gripping claw is narrowed, gripping is facilitated when gripping a small object to be crushed such as a harness. Further, a relatively large object to be crushed such as an engine can be stably gripped by gripping with all the protrusions.

  Further, if the width of the gripping claw in the protrusion arrangement direction is made narrower as the protrusion on the distal end side of the gripping claw, the protrusion on the distal end side can be gripped more easily between the smaller protrusions.

  Also, among the protrusions provided on the gripping claws, if the protrusion height toward the other side is set higher as the protrusion on the tip side of the gripping claw, the smaller object to be crushed between the protrusions on the tip side when gripping a small object This makes it easier to grip a small object to be crushed and a thin and long object such as a harness. Also, when gripping a relatively large object to be crushed, it is necessary to grip with the gripping jaws open, which is convenient for gripping large and small objects to be crushed. The object to be crushed can be held stably.

  FIG. 1 is a side view showing an example of a dismantling machine to which the gripping device of the present invention is applied. In this dismantling machine, a revolving unit 3 is installed on a traveling unit 1 via a revolving device 2, and a driver's cab 4, a hydraulic power unit 5 and the like are mounted on the revolving unit 3, and a work arm 6 is attached to the tip of the revolving unit 3 The gripping device 7 is attached to the structure. Reference numeral 50 denotes a pressing tool attached to the traveling body frame 1 a so as to be able to swing up and down by a hydraulic cylinder 51 in order to press the object to be crushed 52. As described above, the pressing tool 50 may be provided with a pair of left and right arms so as to be horizontally swingable by a hydraulic cylinder, and a crushing tool may be attached to the opposing surface.

  The working arm 6 includes a boom 8 attached to the revolving structure 3 so as to be able to be raised and lowered, a boom cylinder 9 for raising and lowering the boom 8, an arm 10 attached to the tip of the boom 8 so as to be rotatable, and the arm. And an arm cylinder 11 that rotates 10. The gripping device 7 is attached to the arm 10 so as to be rotatable by a turning hydraulic cylinder 12 and links 13 and 14 attached to the arm 10.

  2 and 3 are a side view and a rear view of the gripping device 7. A bracket 15 is attached to the arm 10 with holes 16 and 17 for inserting pins into the arm 10 and the link 14, respectively. Reference numeral 19 denotes a turning device provided on the bracket 15. The turning device 19 includes a turning motor 20 and a center joint 21 for connecting a hydraulic circuit for supplying hydraulic oil to a hydraulic cylinder 26 described later.

  The frame 22 of the gripping device 7 is attached to the swivel device side of the swivel device 19. A fixed claw 23 as one gripping claw that makes a pair is fixed to the front end side of the gripping device frame 22. A movable claw 25 serving as a pair of other gripping claws 25 is pivotably attached around a pin 24 provided on the frame 22. A hydraulic cylinder 26 for opening and closing the movable claw 25 with the fixed claw 23 is attached between the movable claw 25 and the frame 22. Reference numerals 27 and 28 denote cutting blades attached to the base side of the fixed claw 23 and the movable claw 25. In FIG. 2, the frame 22 is shown in a posture rotated 180 degrees with respect to FIG.

  The fixed claw 23 and the movable claw 25 are configured such that the front end portions thereof face each other, and a plurality of protrusions 30 to 32 and 33 to 35 are provided on the front and rear surfaces of the fixed claw 23 and the movable claw 25, respectively. Is formed.

  4 shows a state in which the movable claw 25 is closed with respect to the fixed claw 23. FIGS. 5 and 6 show the fixed claw 23 and the movable claw 25, respectively. FIG. 7 is a diagram illustrating the width in the thickness direction of the gripping claws of the protrusions 30 to 32 and 33 to 35 provided on the opposing surfaces of the fixed claw 23 and the movable claw 25.

  As shown in FIG. 7, the widths A1, A2, and A3 of the fixing claws 23 in the thickness direction of the projections 30, 31, and 32 provided on the fixing claws 23 are A1 so that the tip side is narrower than the root side. <A2 <A3. In addition, the widths B1, B2, and B3 of the protrusions 33, 34, and 35 provided on the movable claw 25 in the thickness direction of the movable claw 25 are also set to B1 <B2 <B3 so that the tip side is narrower than the root side. It is formed.

  Further, in the present embodiment, as shown in FIG. 5, the widths C1, C2, and C3 of the protrusions 30 to 32 of the fixing claw 23 in the protrusion arrangement direction are also narrower on the tip side than on the root side. In addition, at the same time as C1 <C2 <C3, the widths D1, D2, and D3 of the recesses between the tips or projections are also D1 <D2 <D3 so that the tip side is narrower than the root side. Formed.

  Further, as shown in FIG. 6, the widths E1, E2, and E3 of the protrusions 33 to 35 of the movable claw 25 in the protrusion arrangement direction are also E1 <E2 <E3 so that the tip end side is narrower than the root side. In addition, the recesses between the protrusions or the widths F1, F2, and F3 on the base side are also formed such that F1 <F2 <F3 so that the tip side is narrower than the base side.

  Thus, in the present embodiment, since the width in the thickness direction of the claws 23 and 25 of the projections 30 to 32 and 33 to 35 of the fixed claw 23 and the fixed claw 25 is reduced toward the distal end side, When gripping a small object to be crushed, it can be easily gripped by the protrusion on the tip side. In addition, a relatively large object to be crushed such as an engine can be stably gripped by gripping the projections 30 to 32 and 33 to 35 as a whole.

  In the present embodiment, the protrusions on the distal end side of the fixed claw 23 and the movable claw 25 are formed to have a narrower width in the protrusion arrangement direction of the gripping claws. It can be gripped.

  FIG. 8 shows another embodiment of the gripping device according to the present invention. The protrusions 40 to 42 provided on the fixed claw 23 are made higher in the protrusion height (H1> H2> H3) toward the movable claw 25. The protrusion heights of the projections 43 to 45 provided on the tip are also higher at the tip (h1> h2> h3). The relationship between the width in the thickness direction of the claws 23 and 25 of these protrusions 40 to 42 and 43 to 45 and the relationship between the intervals in the protrusion arrangement direction are the same as described above.

  If the configuration as shown in FIG. 8 is used, when a small object to be crushed is gripped, it becomes easier to hold the small object to be crushed first between the projections 40 and 43 on the tip side, and it is easier to grip the small object to be crushed. It becomes. In addition, when gripping a relatively large object to be crushed, it is necessary to grip with the gripping claws 23 and 25 open, which is convenient for gripping large and small objects to be crushed. In addition, it is possible to stably hold a large object to be crushed.

  In the above embodiment, an example in which one pair of gripping claws is a fixed blade and the other is a movable claw has been described. However, the gripping device of the present invention can also be applied to those configured as both movable claws. it can.

It is a side view which shows an example of the dismantling machine to which the holding | gripping apparatus of this invention is applied. It is a side view which shows one Embodiment of the holding | gripping apparatus by this invention. FIG. 3 is a rear view of FIG. 2. It is a principal part enlarged side view of this Embodiment. It is a side view which shows the fixed nail | claw in the holding | gripping apparatus of FIG. It is a side view which shows the movable nail | claw in the holding | gripping apparatus of FIG. It is a figure which shows the relationship of the width | variety of the thickness direction of the protrusion of a fixed nail | claw and a movable nail | claw in this Embodiment. It is a side view which shows other embodiment of the holding | gripping apparatus of this invention.

Explanation of symbols

1: traveling body, 2: swiveling device, 3: swiveling body, 4: cab, 5: hydraulic power unit, 6: working arm, 7: gripping device, 8: boom, 9: boom cylinder, 10: arm, 11 : Arm cylinder, 12: hydraulic cylinder, 13, 14: link, 15: bracket, 19: turning device, 20: turning motor, 21: center joint, 22: gripping device frame, 23: fixed claw, 24: pin, 25 : Movable claw, 26: hydraulic cylinder, 27, 28: cutting blade, 30-35, 40-45: protrusion, 50: presser, 51: hydraulic cylinder

Claims (3)

In the gripping device consisting of a pair of gripping claws attached to the working arm of the demolition machine,
Of the plurality of projections provided on the opposing surfaces of the pair of gripping claws, the gripping device of the dismantling machine is characterized in that the tip-side projection has a narrower width in the thickness direction of the gripping claw. The demolition machine gripping device according to claim 1,
Of the plurality of protrusions provided on the opposing surfaces of the pair of gripping claws, the gap in the protrusion arrangement direction of the gripping claws is narrowed toward the tip side protrusion. The gripping device for a demolition machine according to claim 1 or 2,
Of the protrusions provided on the gripping claws, the protrusion on the tip side of the gripping claws has a higher protrusion height toward the other side.

Images