JP2019127052A - Shear for aircraft decomposition and work vehicle for aircraft decomposition - Google Patents

Abstract

To provide a shear for aircraft decomposition suitable for decomposing an aircraft such as a passenger aircraft using an aluminum alloy with high strength.SOLUTION: A shear for aircraft decomposition comprises: a shear blade of a first jaw part 25 having a tip blade whose cutting tip enters a shear object, a pair of first shear blades 32 which are bent in an obtuse angle relative to an entry direction of the tip blade and are arranged on opposite surfaces of a blade width, and a pair of second shear blades 33 which are bent in an obtuse angle relative to a first shear blade attachment parts and are arranged on opposite surfaces of the blade width; and a shear blade of a second jaw part 26 having a groove part for receiving all of the tip blade, the pair of first shear blades, and part of the pair of second shear blades so as to pass through, a tip blade receiving blade positioned on an inner wall face of the groove part of the area other than the area where the first shear blades pass, a pair of first shear blade receiving blades 36 positioned along an inner wall face of the groove part of the area where both outer peripheral faces of the first shear blades pass, and a pair of second shear blade receiving blades 37 positioned along an inner wall face of the groove part on the area where both outer peripheral faces of the second shear blades pass.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an airplane dismantling shearing machine suitable for disassembling an airplane such as a passenger aircraft using a high-strength aluminum alloy or the like, and an airplane dismantling work vehicle equipped with the shearing machine.

  In recent years, not only scrap automobiles, but also various other scrap objects, such as building scraps such as reinforcing bars and window sashes, or pipe wastes such as water supply pipes and water distribution pipes, cannot be treated by normal dismantling work. Various kinds of scrap objects are gathered on the market and waiting for dismantling. On the other hand, for the dismantling and cutting work of ships, steel frame buildings, plants, large vehicles, etc., we went to the site, cut steel materials etc., loaded them into trucks etc., and transported them as raw materials to steelworks etc. Cutting machines equipped with large steel shears on self-propelled vehicles have been developed. Such a cutting machine includes a hydraulically operated boom that is mounted on a self-propelled vehicle so as to be turnable and prone, and a cutting shearing machine that is opened and closed by a remote operation attached to the tip of the boom.

  This shearing machine for cutting has a frame that can be attached to a boom structure, a pair of jaws for breaking a workpiece having an attachment portion, and jaw attachment means for attaching these jaws to the frame. Means for attaching the jaws to the frame so that both jaws can be swung relative to the frame and about one axis relative to each other, and a pin for the jaw attachment means to removably attach the jaws to the attachment part of the frame And the jaw attachment means is configured to have a rotatable coupling portion that holds both jaws together independently of the pin portion and the frame (see, for example, Patent Document 1).

  Thus, when cutting the scrap to be cut, it can be cut in a rectangular shape in plan view from the end face of the scrap to be cut, but the width of the cut is the same as the width of the breaking jaw that intrudes inside. That is, among the pair of jaws, the scrap to be cut is continuously cut so that the paper is cut with a scissors by rubbing each of the cutting blades of the breaking jaws that rub against both sides of the breaking jaws that enter the inside. Since it is possible to cut, it is possible to reduce labor, labor and time in cutting work of scraps to be cut such as steel plate, and to improve cutting work efficiency.

Japanese Examined Patent Publication 6-92705

  However, with such a conventional shearing machine for cutting, when dismantling an airplane such as a passenger aircraft using a high-strength aluminum alloy or the like, it can be clamped at the start of shearing against slicing a high-strength aluminum alloy. There were times when it was not possible to cut off well. In particular, the airplane body and the wings such as the main wing are not welded but rivet-bonded to join the body and the blades with a large number of rivets. In this case, a great burden is placed on the cutting blade of the abraded part, and it may not be possible to cut it well.

  An object of the present invention is to obtain a shear for aircraft dismantling and a work vehicle for aircraft dismantling suitable for dismantling an aircraft such as a passenger aircraft using high strength aluminum alloy or the like.

According to a first aspect of the present invention, there is provided an aircraft disassembling shear according to a first aspect of the present invention, a first jaw portion and a first jaw portion for shearing an object to be sheared with a shearing blade mounted relatively in rotation between an open position and a closed position. 2 jaws,
A shearing machine comprising hydraulic drive means for rotating the first jaw part and / or the second jaw part,
As a shearing blade of the first jaw portion,
A tip blade having the same maximum width as the thickness of the first jaw part and having a cutting edge penetrated into the shearing object;
A pair of first shearing blades bent at an obtuse angle with respect to the intrusion direction of the tip blades and disposed on both surfaces of the first jaw part,
A pair of second shearing blades bent at an obtuse angle with respect to the first shearing blade mounting part and disposed on both sides of the first jaw part,
As a shearing blade of the second jaw part,
A groove portion that receives all of the tip blade and the pair of first shear blades and a part of each of the pair of second shear blades in a relative movement with the first jaw portion;
A tip blade receiving blade disposed on the inner wall surface of the groove in a region other than the region where the first shearing blade passes so as to surround the outer peripheral surface of the tip blade passing therethrough;
A pair of first shear blade receiving blades each disposed along an inner wall surface of the groove in a region through which both outer peripheral surfaces of the first shear blade pass;
And a pair of second shearing blade receiving blades arranged along the inner wall surface of the groove in a region through which both outer peripheral surfaces of the second shearing blade pass.

  According to a second aspect of the present invention, there is provided a shearing machine for disassembling an aircraft, wherein the hydraulic drive system according to the first aspect is configured to rotate a first hydraulic drive means for rotating the first jaw portion and the second jaw portion. And a second hydraulic drive means that moves.

In the shears for dismantling an airplane according to the invention described in claim 3, the tip of the tip blade according to claim 1 or 2 has a blade width smaller than the thickness of the first jaw portion, and the shearing object Has a small face that can be abutted against
The tip receiving blade includes a width receiving blade facing the outer side of the small edge surface and a pair of both side receiving blades facing each side wall of the tip blade. .

  An aircraft dismantling work vehicle according to the invention described in claim 4 is mounted on the self-propelled vehicle so that the aircraft dismantling work machine according to any one of claims 1 to 3 can turn and lie down. It is characterized in that it is attached to the tip of a hydraulically operated boom.

  INDUSTRIAL APPLICABILITY The present invention has an effect that it is possible to obtain an airplane dismantling shearer and an airplane dismantling work vehicle suitable for disassembling an airplane such as a passenger aircraft using a high-strength aluminum alloy or the like.

It is explanatory drawing which shows the structure of one Example of the dismantling working vehicle for airplanes provided with the shearing machine for airplane dismantling of this invention. It is explanatory drawing which shows the structure of the shear machine for airplane dismantling shown in FIG. It is the enlarged view and side view of the front-end | tip blade of the 1st jaw part of the shear machine for airplane dismantling shown in FIG. It is a top view of the front-end | tip blade receiving blade of the 2nd jaw part of FIG. It is explanatory drawing which shows the shearing operation | movement of the principal part of the shear machine for airplane dismantling shown in FIG.

  In the present invention, the first jaw portion and the second jaw portion that shear the object to be sheared with the shearing blade that is mounted by rotating relatively between the open position and the closed position, and the first jaw portion and / or And a hydraulic drive system that rotates the second jaw portion.

  In such a shearing machine, according to the present invention, as the shearing blade of the first jaw portion, a tip blade having the same maximum width as the thickness of the first jaw portion, and the cutting edge enters the shearing object, A pair of first shearing blades bent at an obtuse angle with respect to the intrusion direction of the tip blade and disposed on both surfaces of the first jaw part, and bent at an obtuse angle with respect to the first shearing blade mounting part A pair of second shearing blades disposed on both sides of the one jaw portion.

  Further, as the shearing blade of the second jaw portion, the tip blade and the pair of first shearing blades and a part of each of the pair of second shearing blades can be passed when moving relative to the first jaw portion. A receiving groove, a tip blade receiving blade disposed on an inner wall surface of the groove in a region other than the region where the first shearing blade passes so as to surround an outer peripheral surface of the passing tip blade, and both outer peripheral surfaces of the first shearing blade A pair of first shear blade receiving blades arranged along the inner wall surface of the groove portion in the region where the blade passes, and an inner wall surface of the groove portion in the region where both outer peripheral surfaces of the second shear blade pass, respectively. And a pair of second shearing blade receiving blades.

  The first jaw portion and the second jaw portion allow the tip edge of the first jaw portion to abut against the object to be sheared at the start of shearing, so that the pressure of the hydraulic drive system can be concentrated on the tip. It is also possible to easily dismantle airplanes such as passenger aircraft using aluminum alloys. That is, only the cutting edge of the tip blade of the first jaw portion abuts on the high strength aluminum alloy of the aircraft, and the pressure of the hydraulic pressure is concentrated to form a drilled hole. It can be well sheared by the first shearing blade and the first shearing blade following the drilled hole formed.

  The tip of the tip blade of the first jaw portion is pressed in a direction substantially perpendicular to the object to be sheared, so that the tip does not come off from the pressed portion, and the hydraulic pressure is well concentrated at the pressed portion. Can be made. That is, in cutting the wing of an aircraft such as a wing and a wing of an airplane in which riveting is performed to connect the body and the wing with a large number of rivets, not welding, the tip blade of the first jaw is used. By pressing the cutting tip to the cutting location and concentrating pressure on this cutting tip, the cutting tip does not come off from the pressing location, and a drilling hole is easily formed by the cutting tip, and the first shearing blade behind the tip blade and The second shearing blade shears the high strength aluminum alloy.

  The first jaw portion and the second jaw portion of the shearing machine of the present invention may be any one that shears the object to be sheared with a shearing blade that is equipped by rotating relatively between the open position and the closed position. The first jaw portion and the second jaw portion may be rotated by a hydraulic drive means including a hydraulic piston / cylinder, or only one jaw portion may be rotated by one hydraulic drive means.

  However, by pressing the cutting edge of the tip blade against the shearing object from a substantially vertical direction, the cutting edge does not come off from the pressing position, and the pressing force of the hydraulic drive means is well concentrated on the pressing position of the shearing object. Therefore, by rotating both the first jaw portion and the second jaw portion and adjusting the opening / closing angle of the second jaw portion with respect to the cutting edge of the tip blade of the first jaw portion, a thick shear target Even if it is a thing, it is preferable to adjust so that the tip of a front-end | tip blade may be pressed from a substantially perpendicular direction. Accordingly, the hydraulic drive system according to the present invention more preferably includes first hydraulic drive means for rotating the first jaw portion and second hydraulic drive means for rotating the second jaw portion.

  As a tip blade of the present invention, as a shearing blade of the first jaw part, it is sufficient if it has the same maximum width as the thickness of the first jaw part and the cutting edge penetrates the shearing object, and as a preferable aspect The tip end of the present invention has a tip width smaller than the thickness of the first jaw portion as the tip end of the tip end, and further has a fore-end surface that can be abutted against the object to be sheared. The opposed tip receiving blades include a width receiving blade that faces the outer side of the small edge surface and a pair of both side receiving blades that face the both side walls of the tip blade. As a result, the pressing force of the hydraulic drive system is satisfactorily generated on the facet and width receiving blade having a width smaller than the thickness of the first jaw portion, and even a high-strength aluminum alloy shearing object can be easily tipped. The cutting edge of the blade enters and a drilling hole is formed.

  The shear angle, which is the opening angle of the opposing blades of the shearing blade of the present invention, is the force required for cutting by straightening the blade on one side (usually the blade on the movable side). By reducing the value and continuously cutting from one direction, you can get a clean cut. When the shear angle is increased, the “maximum shear force” decreases, and the power of the shear (cutting machine) can be decreased. However, as the shear angle increases, bending or twisting at the time of cutting increases, or the plate size starts to cut. The quality and quality of sheared products are degraded, for example, they become different on the cut end side.

  Furthermore, the quality of the cut edge, the necessary shearing force, the lateral force, and the like vary depending on the size of the clearance (clearance) between the opposing blades of the shearing blade of the present invention. Shearing machines often show standard values of clearance values for the thickness of the sheet to be cut and some types of steel, but the characteristics of the cut surface due to differences in mechanical properties of the material to be cut, mechanical accuracy, plate holding force, etc. Select the optimal clearance to change the quality. For example, for a 20 mm plate thickness, take a clearance of 20% of the thickness.

  The aircraft dismantling work vehicle of the present invention is mounted on the tip of a hydraulically operated boom on which a shear for disassembling the aircraft is mounted on a self-propelled vehicle so as to be turnable and lie down.

  FIG. 1 is an explanatory view showing the configuration of an embodiment of an airplane dismantling work vehicle equipped with an airplane dismantling shearer according to the present invention. FIG. 2 is an explanatory diagram showing a configuration of the airplane dismantling shear shown in FIG. FIG. 3 is an enlarged view and a side view of the tip blade of the first jaw portion of the aircraft dismantling shear shown in FIG. FIG. 4 is a plan view of the tip blade receiving blade of the second jaw portion of FIG. FIG. 5 is an explanatory diagram showing the shearing operation of the main part of the airplane dismantling shear shown in FIG.

  As shown in FIG. 1, the aircraft dismantling work vehicle 10 of the present embodiment is attached to the front end of a self-propelled vehicle 11 and a hydraulically operated boom 14 that is mounted on the self-propelled vehicle 11 so as to be capable of turning and lying down. It consists of a shearing machine 20 for disassembly. More specifically, the self-propelled vehicle 11 is equipped with a turning stage 12 that is driven by electric power supplied from an engine output or an external power source.

  A driving cabin 13 is provided on the front left side on the stage 12 so as to be forward when traveling, and a hydraulically actuated boom 14 is pivotally supported by a relief cylinder 15 at a central portion thereof, The boom 14 has a dismantling shearing machine 20 pivotally supported by a hydraulic drive means 16 comprising a hydraulic piston / cylinder at the tip thereof so as to be prone. Further, a hydraulic pressure generating device 17 is mounted behind the stage 12. The boom 14 is turned upside down and folded at a predetermined angle when the vehicle 11 is transported by a trailer truck or the like.

  As shown in FIG. 2, the dismantling shearing machine 20 is held freely (not shown) on a frame device 21 provided with a frame base that is rotated by a rotating means. The frame device 21 is attached to the hydraulic operation boom 14 by a fulcrum 22 so as to be tiltable. The frame device 21 drives the pivoting means and the hydraulic drive means 16 by steering the driving cabin 13 to be pivoted and lowered at various angles.

  The dismantling shearing machine 20 includes a main body 23 having two panels installed on a frame base of the frame device 21, and an open position and a closed position disposed between the two panels of the main body 23. A first jaw portion 25 and a second jaw portion 26 that are relatively rotated about the fulcrum 24; a first hydraulic drive means 27 that rotates the first jaw portion 25 about the fulcrum 24; And second hydraulic drive means 28 for rotating the jaw portion 26 around the fulcrum 24.

  The first jaw portion 25 is a front cutting edge 31 into which a cutting edge enters a shearing object as a shearing blade in front of the fulcrum 24, and the first jaw portion is bent at an obtuse angle with respect to the intrusion direction of the front cutting edge 31. A pair of first shearing blades 32 disposed on both surfaces of the first shearing blade 25 and a pair of second shearing blades disposed on both surfaces of the first jaw portion 25 by being bent at an obtuse angle with respect to the first shearing blade mounting portion. And 33.

  The second jaw portion 26 is also a shear blade in front of the fulcrum 24, and the tip blade 31 and the pair of first shear blades 32 as well as the pair of second shear blades 33 when moving relative to the first jaw portion 25. A groove portion 34 arranged so as to surround the outer peripheral surface of the tip blade 31 through which a part of each of the first blade blade 31 passes, and a groove portion 34 in a region other than the region surrounding the outer periphery through which the tip blade 31 passes and the first shear blade region passes. A tip blade receiving blade 35 disposed along the inner wall surface, and a pair of first shear blade receiving blades 36 respectively disposed along the inner wall surface of the groove portion 34 in a region through which each of the first shear blades 32 passes. And a pair of second shear blade receiving blades 37 disposed along the inner wall surface of the groove portion 34 in a region through which each of the second shear blades 33 passes.

  More specifically, the distal end portion of the first jaw portion 25 in FIG. 2 is detachably attached to the distal end portion of the first jaw portion 25, and the cutting edge of the distal end blade 31 is the first jaw as shown in FIGS. The small edge surface 31a which has a blade width smaller than the thickness of the part 25 and can contact | abut with respect to a shearing target object is provided. The tip end receiving blade 35 of the second jaw portion 26 is, as shown in FIG. 4, a width receiving edge 35 a that faces the outer edge of the fore-end surface 31 a of the tip end blade 31 indicated by a dashed dotted line, and both side walls of the tip end blade 31. And a pair of opposing receiving blades 35b.

  As the movement of the first jaw 25 and the second jaw 26, that is, for example, the case of cutting a small wing-like sheared object 50 will be described. As shown in FIG. 5a, the first jaw 25 and the second jaw 26 in the open state are gradually closed. In this case, the first jaw portion 25 and the second jaw portion 26 are adjusted such that the fore edge surface 31a of the tip blade 31 of the first jaw portion 25 presses the shearing target 50 in a substantially vertical direction. (A figure).

  As shown in FIG. 5b, the first hydraulic drive means 27 and the second hydraulic drive means 28 are driven from the state shown in FIG. 5a to press the small edge surface 31a into the shearing object 50. . That is, as shown in FIG. 3, the tip edge 31 having a width smaller than the thickness of the first jaw portion 25 and having a fore-end surface 31 a that can be abutted against the object to be sheared Since the first jaw portion 25 and the second jaw portion 26 are rotated by the respective hydraulic drive means 27 and 28 in contact with each other, a shearing stress is generated satisfactorily and a high-strength aluminum alloy shearing object is obtained. However, the tip of the tip blade easily enters and a drilling hole is formed.

  Further, as the tip blade 31 enters, the drilling hole gradually widens and is sheared by the both-side receiving blades 35b of the tip blade receiving blade 35, and as shown in FIGS. The through-hole is opened by shearing the first shearing blade 32 and the first shearing blade receiving blade 36, and as shown in FIG. 5 d, by shearing between the second shearing blade 33 and the second shearing blade receiving blade 37. The object to be sheared 50 is sheared.

10 ... Demolition work vehicle for plane,
11 ... Self-propelled vehicle,
12 ... swivel stage,
13 ... driving cabin,
14 ... hydraulically operated boom,
15 ... relief cylinder,
16 ... hydraulic drive means,
17 ... Hydraulic pressure generator,
20 ... Disassembly shears,
21 ... frame device,
22 ... fulcrum,
23 ... Main body,
24 ... fulcrum,
25 ... 1st jaw part,
26 ... 2nd jaw part,
27 ... first hydraulic drive means,
28 ... second hydraulic drive means,
31 ... tip blade,
31a ... small edge face,
32 ... 1st shearing blade,
33 ... second shearing blade,
34 ... groove portion,
35 ... Tip blade receiving blade,
35a ... width receiving blade,
35b ... both sides receiving blade,
36 ... 1st shear blade receiving blade,
37 ... 2nd shear blade receiving blade,
50 ... sheared object,

Claims (4)

A first jaw portion and a second jaw portion that shear a shearing object with a shearing blade that is pivotally mounted between an open position and a closed position;
A shearing machine comprising hydraulic drive means for rotating the first jaw part and / or the second jaw part,
As a shearing blade of the first jaw portion,
A tip blade having the same maximum width as the thickness of the first jaw part and having a cutting edge penetrated into the shearing object;
A pair of first shearing blades bent at an obtuse angle with respect to the intrusion direction of the tip blades and disposed on both surfaces of the first jaw part,
A pair of second shearing blades bent at an obtuse angle with respect to the first shearing blade mounting part and disposed on both sides of the first jaw part,
As a shearing blade of the second jaw part,
A groove portion that receives all of the tip blade and the pair of first shear blades and a part of each of the pair of second shear blades in a relative movement with the first jaw portion;
A tip blade receiving blade disposed on the inner wall surface of the groove in a region other than the region where the first shearing blade passes so as to surround the outer peripheral surface of the tip blade passing therethrough;
A pair of first shear blade receiving blades each disposed along an inner wall surface of the groove in a region through which both outer peripheral surfaces of the first shear blade pass;
A shearing machine for aircraft dismantling comprising: a pair of second shearing blade receiving blades disposed along the inner wall surface of the groove in a region through which both outer peripheral surfaces of the second shearing blade pass.   The hydraulic drive system according to claim 1, wherein the hydraulic drive system comprises: first hydraulic drive means for rotating the first jaw portion; and second hydraulic drive means for rotating the second jaw portion. Shears for airplane dismantling. The cutting edge of the tip blade has a blade width smaller than the thickness of the first jaw part, and has a fore surface that can come into contact with the shearing object,
The said front-end | tip receiving blade is equipped with the width | variety receiving blade which opposes the outer side of the said fore edge surface, and a pair of both-side receiving blade respectively opposing the both-sides wall of the said front-end | tip blade. Or the shearing machine for airplane disassembly as described in 2.   An aircraft dismantling shearer according to any one of claims 1 to 3 is attached to a tip of a hydraulically operated boom mounted on a self-propelled vehicle so as to be capable of turning and prone to be lifted. Work car.

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