JP6856253B2 - Shearing machine for dismantling large airplanes - Google Patents

Description

The present invention relates to a shearing machine for dismantling a large airplane suitable for dismantling a large airplane such as a passenger aircraft using a high-strength aluminum alloy or the like.

In recent years, not only scrapped automobiles but also various other scrap objects, such as construction waste materials such as reinforcing bars and window frame sashes, or piping waste materials such as water supply pipes and water distribution pipes, cannot be completely processed by ordinary demolition work, and various places. Various scrap objects have been accumulated in the area and are waiting for dismantling. On the other hand, when dismantling and cutting ships, steel structures, plants, large vehicles, etc., the purpose is to go to the site, cut steel materials, load them on trucks, etc., and transport them as raw materials to steel mills, etc. A cutting machine equipped with a large steel shearing machine for a self-propelled vehicle has been developed. Such a cutting machine includes a hydraulically actuated boom mounted on a self-propelled vehicle so as to be able to turn and lie down, and a cutting shearing machine attached to the tip of the boom and operated to open and close by remote control.

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

As a result, when cutting the scrap to be cut, the portion cut from the end face of the scrap to be cut can be cut into a rectangular shape in a plan view, but the width of the cutting is the same as the width of the breaking jaw that penetrates inward. Become. That is, the scrap to be cut is continuously cut so as to cut the paper with scissors by rubbing the cutting edges of both sides of the destructive jaw that penetrates the inside of the pair of jaws and the outer destructive jaws that rub against these surfaces. Therefore, it is possible to reduce labor, labor and time in cutting work of scrap to be cut such as steel plate, and improve cutting work efficiency.

Special Fair 6-92705 Gazette

However, in such a conventional shearing machine for cutting, when disassembling an airplane such as a passenger plane using a high-strength aluminum alloy or the like, a cutting blade is used at the start of shearing in contrast to sandwiching the high-strength aluminum alloy. Was not included in the scrap to be cut, and as a result, it was not possible to cut it well. In particular, the body of the airplane and the blades of the main wing, etc. are not welded, but rivets are used to connect the body and blades with a large number of rivets, so the tip of the cutting edge is rivet at the start of shearing. In some cases, it was not possible to penetrate well by bonding, and even after it penetrated well, it was not possible to pinch the cutting edge due to a great load on the cutting edge in a well-matched state.

An object of the present invention is to obtain a large airplane dismantling shearing machine suitable for dismantling a large airplane such as a passenger aircraft using a high-strength aluminum alloy or the like.

The shearing machine for dismantling a large airplane according to the first aspect of the present invention has a first jaw that shears an object to be sheared by a shearing blade equipped so as to rotate relatively between an open position and a closed position. Department and 2nd jaw part,
A shearing machine provided with a first jaw portion and / or a hydraulic drive means for rotating the second jaw portion.
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 arranged in the tip region of the first jaw portion so that the cutting edge penetrates into the shearing object.
A pair of first parallel shear blades arranged on both sides of the first jaw portion adjacent to the tip blade,
A pair of second parallel shear blades, which are bent at an obtuse angle with respect to the attachment portion of the first parallel shear blade and are arranged on both sides of the first jaw portion, are provided.
As the tip blade
An edge portion having a blade width smaller than the thickness of the first jaw portion arranged at the tip of the first jaw portion and first contacting the object to be sheared, and an edge portion arranged on both sides of the edge portion and continuous toward the rear end. A cutting edge blade with a pair of tip taper blades that increase the blade width.
A pair of tapered blades that are bent at an obtuse angle with respect to each attachment portion of the rear end portion of the tip tapered blade of the cutting edge blade and arranged in a direction that separates them from each other over each of the first parallel shear blades. With and
As the shearing blade of the second jaw portion,
A groove portion that allows the tip blade and the pair of the first parallel shear blades and a part of each of the pair of the second parallel shear blades to pass through when moving relative to the first jaw portion.
A tip blade receiving blade arranged on the inner wall surface of the groove portion in a region other than the area through which the first parallel shear blade passes so as to surround the outer peripheral surface of the passing tip blade.
A pair of first parallel shear blade receiving blades arranged along the inner wall surface of the groove portion in the region through which both outer peripheral surfaces of the first parallel shear blade pass, and a pair of first parallel shear blade receiving blades.
A pair of second parallel shear blade receiving blades arranged along the inner wall surface of the groove portion in the region through which both outer peripheral surfaces of the second parallel shear blade pass are provided.
It is characterized in that the outer side in the rotation direction from the edge surface of the cutting edge of the tip blade of the first jaw portion is reinforced as compared with the inner side.

The shearing machine for dismantling a large airplane according to the second aspect of the present invention has a first jaw that shears an object to be sheared by a shearing blade equipped so as to rotate relatively between an open position and a closed position. Department and 2nd jaw part,
A shearing machine provided with a first jaw portion and / or a hydraulic drive means for rotating the second jaw portion.
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 arranged in the tip region of the first jaw portion so that the cutting edge penetrates into the shearing object.
A pair of first parallel shear blades arranged on both sides of the first jaw portion adjacent to the tip blade,
A pair of second parallel shear blades, which are bent at an obtuse angle with respect to the attachment portion of the first parallel shear blade and are arranged on both sides of the first jaw portion, are provided.
As the tip blade
An edge portion having a blade width smaller than the thickness of the first jaw portion arranged at the tip of the first jaw portion and first contacting the object to be sheared, and an edge portion arranged on both sides of the edge portion and continuous toward the rear end. A cutting edge blade with a pair of tip taper blades that increase the blade width.
A pair of tapered blades that are bent at an obtuse angle with respect to each attachment portion of the rear end portion of the tip tapered blade of the cutting edge blade and arranged in a direction that separates them from each other over each of the first parallel shear blades. With and
As the shearing blade of the second jaw portion,
A groove portion that allows the tip blade and the pair of the first parallel shear blades and a part of each of the pair of the second parallel shear blades to pass through when moving relative to the first jaw portion.
A tip blade receiving blade arranged on the inner wall surface of the groove portion in a region other than the area through which the first parallel shear blade passes so as to surround the outer peripheral surface of the passing tip blade.
A pair of first parallel shear blade receiving blades arranged along the inner wall surface of the groove portion in the region through which both outer peripheral surfaces of the first parallel shear blade pass, and a pair of first parallel shear blade receiving blades.
A pair of second parallel shear blade receiving blades arranged along the inner wall surface of the groove portion in the region through which both outer peripheral surfaces of the second parallel shear blade pass are provided.
The maximum drive output of the first hydraulic drive means for rotating the first jaw portion is larger than the maximum drive output of the second hydraulic drive means for rotating the second jaw portion. Is.

The present invention has an effect that it is possible to obtain a large airplane dismantling shearing machine suitable for dismantling a large 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 airplane demolition work vehicle provided with the large airplane demolition shearing machine of this invention. It is explanatory drawing which shows the structure of the shearing machine for dismantling a large airplane shown in FIG. 2 is an explanatory view of the tip blade of the first jaw portion of the shearing machine for dismantling a large airplane shown in FIG. 2, where a is an enlarged view, b is a side view, c is a plan view, and d is a front view. .. It is a top view of the tip blade receiving blade of the 2nd jaw part of FIG. It is explanatory drawing which shows the shearing operation of the main part of the shearing machine for dismantling a large airplane shown in FIG. It is explanatory drawing which shows the structure of the shearing machine for dismantling a large airplane of another Example.

In the present invention, the first jaw portion and the second jaw portion, the first jaw portion, and the first jaw portion for shearing the object to be sheared by a shear blade equipped so as to rotate relatively between the open position and the closed position. / Or a shearing machine provided with a hydraulic drive means for rotating the second jaw portion. In this shearing machine, as a shearing blade of the first jaw portion, a tip blade having the same maximum width as the thickness of the first jaw portion and having a cutting edge invading the object to be sheared and adjacent to the tip blade. A pair of first parallel shear blades arranged on both sides of the first jaw portion and a pair arranged on both sides of the first jaw portion by bending at an oblique angle with respect to the attachment portion of the first parallel shear blade. It is equipped with a second parallel shearing blade.

Further, as the shearing blade of the second jaw portion, all of the tip blade and the pair of the first parallel shearing blades and a part of each of the pair of the second parallel shearing blades are used when moving relative to the first jaw portion. The groove portion that accepts the blade so that it can pass through, the tip blade receiving blade arranged on the inner wall surface of the groove portion in the region other than the region through which the first parallel shear blade passes so as to surround the outer peripheral surface of the passing tip blade, and the first parallel shear blade A pair of first parallel shear blade receiving blades arranged along the inner wall surface of the groove portion in the region through which both outer peripheral surfaces pass, and along the inner wall surface of the groove portion in the region through which both outer peripheral surfaces of the second parallel shear blade pass. It is provided with a pair of second parallel shearing blade receiving blades arranged respectively.

Therefore, at the start of shearing, the cutting edge of the tip blade of the first jaw portion comes into contact with the object to be sheared, and the pressure of the hydraulic drive system can be concentrated on this cutting edge. It is also easy to dismantle a large airplane. That is, only the cutting edge of the tip blade of the first jaw portion comes into contact with the high-strength aluminum alloy of a large airplane, and the drilling hole is formed by applying the hydraulic pressure in a concentrated manner. Following the formed drilling hole, it can be satisfactorily sheared by the first parallel shearing blade and the first parallel shearing blade receiving blade.

The cutting edge of the tip blade of the first jaw portion is pressed in a substantially vertical direction with respect to the object to be sheared, so that the cutting edge does not come off from the pressed portion and the hydraulic pressure is satisfactorily concentrated on the pressed portion. Can be made. That is, in cutting the body of an airplane and the blades of the main wing, etc., where rivet coupling is performed to connect the body and blades with a large number of rivets instead of welding, the tip blade of the first jaw portion By pressing the cutting edge against the cutting point and concentrating the pressure on the cutting point, the cutting edge does not come off from the pressed part, the drilling hole is easily formed by the cutting edge, and the first parallel shear blade behind the tip blade. The high-strength aluminum alloy is sheared by the second parallel shearing blade.

In such a shearing machine of the present invention, as a tip blade, an edge portion having a blade width smaller than the thickness of the first jaw portion arranged at the tip of the first jaw portion and first contacting the object to be sheared, and this edge For each mounting portion of the cutting edge blade provided with a pair of tip tapered blades arranged on both sides of the portion and the blade width is continuously increased toward the rear end, and the rear end portion of the tip tapered blade of the cutting edge blade. It is provided with a pair of tapered blades that are bent at an blunt angle and arranged in a direction that separates them from each other over each of the first parallel shear blades.

For this reason, the fore edge of the tip blade of the first jaw portion first contacts the object to be sheared to pierce the high-strength aluminum alloy, and then the hole in which the pair of tip taper blades is pierced is widened. Further, it is widened to the width of the first parallel shear blade while cutting with a pair of tapered blades. As a result, the rivet joint portion connected by a large number of rivets can be broken while making a large number of drilling holes at the edge portion of the tip blade by driving the first jaw portion in small steps. After passing through the region, it is widened to the width of the first parallel shear blade while cutting with a pair of tapered blades, and the high-strength aluminum alloy is sheared by the first parallel shear blade and the second parallel shear blade.

Further, the tip blade of the first jaw portion abuts its edge surface on the sheared object with a strong pressure, concentrates the pressure of the hydraulic drive system on this cutting edge to shear the sheared object, and from the edge portion to both sides thereof. The holes formed by the pair of tip taper blades formed over the blades are widened, and the holes are further widened to the width of the first parallel shear blade while being cut by the pair of taper blades. Therefore, since a strong force is applied to the tip blade, the life of the tip blade can be extended if the outer side in the rotation direction from the edge surface of the cutting edge is reinforced as compared with the inner side. As the reinforcement, the outer side may be thicker than the inner side, or a reinforcing material made of the same material as or different from that of the tip blade may be arranged.

The first jaw portion and the second jaw portion of the shearing machine of the present invention may be those that shear an object to be sheared by a shearing blade equipped so as to rotate relatively between an open position and a closed position. The first jaw portion and the second jaw portion may be rotated by a hydraulic drive means including a hydraulic piston and a cylinder, respectively, or only one jaw portion may be rotated by one hydraulic drive means. Good.

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 portion, and the pressing force of the hydraulic drive means is satisfactorily concentrated on the pressing portion of the shearing object. In order to make the shearing object thick, the first jaw portion and the second jaw portion are both rotated, and the opening / closing angle of the second jaw portion is adjusted with respect to the cutting edge of the tip blade of the first jaw portion. Even if it is an object, it is preferable to adjust the cutting edge of the tip blade so that it is pressed from a substantially vertical direction. Therefore, the hydraulic drive system of the present invention more preferably includes a first hydraulic drive means for rotating the first jaw portion and a second hydraulic drive means for rotating the second jaw portion.

As described above, the second jaw portion may be fixed by adjusting the opening / closing angle, and it is the tip blade of the first jaw portion that shears the object to be sheared. Therefore, in particular, if the maximum drive output of the first hydraulic drive means that rotates the first jaw portion is larger than the maximum drive output of the second hydraulic drive means that rotates the second jaw portion. The balance of the hydraulic system is good, and even a small hydraulic system can obtain good shearing mainly by increasing the drive of the first jaw portion.

The tip blade of the present invention may be a shearing blade of the first jaw portion having a maximum width equal to the thickness of the first jaw portion and having a cutting edge that penetrates into the object to be sheared, more preferably. As the cutting edge, the edge portion having a blade width smaller than the thickness of the first jaw portion arranged at the tip of the first jaw portion and first contacting the sheared object, and the rear end arranged on both sides of this edge portion. It is provided with a pair of tip tapered blades whose blade width is continuously increased toward. At the rear end of the tapered blade at the tip of the cutting edge, a pair of blades that are bent at an obtuse angle with respect to each mounting portion and arranged in a direction that separates them from each other over each of the first parallel shear blades. Equipped with a tapered blade. As a result, the shearing stress is satisfactorily generated by the pressing force of the hydraulic drive system on the edge surface and the width receiving blade having a width smaller than the thickness of the first jaw portion, and even a high-strength aluminum alloy sheared object can be easily tipped. The cutting edge of the blade penetrates and a drilling hole is formed.

With respect to the tip blade receiving blade of the present invention, preferably, a cutting edge receiving blade portion composed of a width receiving blade and a pair of tip tapered blade receiving blades is arranged so as to be inclined in a direction facing the first jaw portion. .. That is, by adjusting the inclination angle so that the pressing direction of the edge portion of the tip blade is perpendicular to the sheared object, the cutting edge does not deviate from the pressing portion and the hydraulic pressure is satisfactorily concentrated at the pressing portion. Can be made.

The shear angle, which is the opening angle of the shearing blades of the present invention facing each other, is necessary for cutting a linear blade by making an angle on one side of the blade (usually, the movable side of the blade). You can get a clean cut by reducing the force and cutting continuously from one direction. Increasing the shear angle reduces the "maximum shear force" and the power of the shear (cutting machine), but as the shear angle increases, the bending and twisting during cutting increases, and the plate dimensions begin to cut. The quality and quality of the sheared product deteriorates, for example, it differs on the cutting end side.

Further, the quality of the cut edge, the required shearing force, the lateral force, and the like change depending on the size of the clearance between the shearing blades of the present invention. In a shearing machine, the standard value of the clearance value is often shown by the plate thickness to be cut and some steel classification, but the properties of the cut end due to the difference in mechanical properties of the material to be cut, mechanical accuracy, plate holding force, etc. Select the optimum clearance because the quality) will change. For example, a clearance of 20% of the thickness is taken with respect to the plate thickness of 20 mm.

The large airplane dismantling shearing machine of the present invention can be attached to the tip of a hydraulically actuated boom mounted on a self-propelled vehicle so as to be able to turn and lie down to form a large airplane dismantling work vehicle.

FIG. 1 is an explanatory diagram showing a configuration of an embodiment of an airplane demolition work vehicle provided with the large airplane demolition shearing machine of the present invention. FIG. 2 is an explanatory diagram showing a configuration of a shearing machine for dismantling a large airplane shown in FIG. FIG. 3 is an explanatory view of the tip blade of the first jaw portion of the shearing machine for dismantling a large airplane shown in FIG. 2, where a is an enlarged view, b is a side view, c is a plan view, and d is a front view. It is a figure. 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 a shearing operation of a main part of the shearing machine for dismantling a large airplane shown in FIG.

As shown in FIG. 1, the dismantling work vehicle 10 for a large airplane of this embodiment is attached to the self-propelled vehicle 11 and the tip of the hydraulically actuated boom 14 mounted on the self-propelled vehicle 11 so as to be able to turn and lie down. It is composed of a shearing machine 20 for dismantling. More specifically, the self-propelled vehicle 11 is equipped with a turning stage 12 driven by an engine output or electric power supplied from an external power source.

On the stage 12, a driving cabin 13 is provided on the left side of the front portion so as to face forward during traveling, and a hydraulically actuated boom 14 is pivotally supported in the central portion by an undulating cylinder 15 so as to be undulating. The boom 14 has a dismantling shearing machine 20 at its tip, which is pivotally supported by a hydraulic driving means 16 including a hydraulic piston / cylinder. A flood control generator 17 is mounted behind the stage 12. The boom 14 is laid down at a predetermined angle and folded when the vehicle 11 is conveyed by a trailer truck or the like.

As shown in FIG. 2, the large airplane dismantling shearing machine 20 is freely held on a frame device 21 provided with a frame base that is rotated by a rotating means (not shown). The frame device 21 is slantably attached to the flood control boom 14 by a fulcrum 22. The frame device 21 drives the rotating means and the hydraulic driving means 16 by maneuvering the driving cabin 13 to rotate and lie down at various angles.

The dismantling shearing machine 20 is located between a main body 23 having two panels installed on the frame base of the frame device 21 and an open position and a closed position arranged between the two panels of the main body 23. The first jaw portion 25 and the second jaw portion 26 that are relatively rotated around the fulcrum 24, the first hydraulic drive means 27 that rotates the first jaw portion 25 around the fulcrum 24, and the first The second hydraulic drive means 28 for rotating the jaw portion 26 around the fulcrum 24 is provided. With respect to the first hydraulic drive means 27 and the second hydraulic drive means 28, the drive maximum output of the first hydraulic drive means 27 is larger than the drive maximum output of the second hydraulic drive means 28. As a result, the balance of the hydraulic system becomes good, and even in a small hydraulic system, good shear can be obtained mainly by increasing the drive of the first jaw portion.

As a shearing blade in front of the fulcrum 24, the first jaw portion 25 is a tip blade 31 in which the cutting edge first penetrates into the object to be sheared, and the first jaw portion 25 is bent at an oblique angle with respect to the invasion direction of the tip blade 31. A pair of first parallel shear blades 33 arranged on both sides of the jaw portion 25, and a pair of first parallel shear blades 33 bent at an oblique angle with respect to the first parallel shear blade mounting portion and arranged on both sides of the first jaw portion 25, respectively. A second parallel shear blade 34 is provided.

The second jaw portion 26 is also used as a shearing blade in front of the fulcrum 24, and when it moves relative to the first jaw portion 25, all of the tip blade 31 and the pair of the first parallel shearing blades 33 and the pair of the second parallel shearing blades are sheared. A groove 35 arranged so as to surround the outer peripheral surface of the tip blade 31 through which a part of each of the blades 34 passes, and a region other than the outer circumference through which the tip blade 31 passes and the first parallel shear blade region passes through. A pair of first parallel shearing blades arranged along the inner wall surface of the groove portion 35 in the region through which each of the tip blade receiving blade 36 and the first parallel shearing blade 33 pass, respectively, and the tip blade receiving blade 36 arranged along the inner wall surface of the groove portion 35. The receiving blade 38 and a pair of second parallel shearing blade receiving blades 39 arranged along the inner wall surface of the groove 35 in the region through which each of the second parallel shearing blades 34 passes are provided.

More specifically, the tip portion of the first jaw portion 25 in FIG. 2 is detachably attached to the tip portion of the first jaw portion 25, and as shown in FIG. 3, the cutting edge of the tip blade 31 is the first jaw portion 25. It has a blade width smaller than the thickness, and has an edge surface 31a that can come into contact with the object to be sheared. As shown in FIG. 4, the longitudinal side of the edge surface 31a in the width direction is arranged to face the width receiving blade 36a of the tip receiving blade 36 of the second jaw portion 26, and by shearing between these width sides, the edge is formed. The surface 31a is drilled.

A pair of tip taper blades 31b are arranged on both sides of the edge surface 31a so that the blade width is continuously increased toward the rear end, and the outer ridges of these pair of tip taper blades 31b are blades. When the first jaw portion 25 and the second jaw portion 26 rotate and intersect with each other, the pair of tip taper blades 31b and the tip taper blade receiving blade 36b are rubbed against each other to shear the object to be sheared. .. Since a strong force is applied to the tip blade 31, a thick portion 31c is arranged so that the outer side in the rotation direction is reinforced to be thicker than the inner side from the edge surface 31a of the cutting edge. Therefore, the life can be extended.

As shown in FIGS. 2 and 3, the rear end portions of the pair of tip taper blades 31b of the first jaw portion 25 are bent at an obtuse angle with respect to the respective mounting portions, and the subsequent first one is bent. A pair of tapered blades 32 arranged in a direction away from each other are arranged over each of the parallel shear blades 33. As shown in FIG. 4, a tapered blade receiving blade 37 is provided at a position facing the second jaw portion 26 of the tapered blade 32.

A pair of tapered blades 32, a pair of first parallel shearing blades 33, a pair of second parallel shearing blades 34, a pair of tapered blade receiving blades 37 facing them, a pair of first parallel shearing blade receiving blades 38, Since the pair of second parallel shearing blade receiving blades 39 are composed of rectangular replaceable blades and the four longitudinal sides are configured as shearing blades, the individual mounting bolts (not shown) are removed. By replacing and mounting the individual shear blades, the life of the individual shear blades can be quadrupled.

The movements of the first jaw portion 25 and the second jaw portion 26 will be described, that is, the case where, for example, the wing-shaped shearing object 50 is sheared. As shown in FIG. 5a, the first jaw portion 25 and the second jaw portion 26 in the open state are gradually closed. In this case, the first jaw portion 25 and the second jaw portion 26 are adjusted so that the edge surface 31a of the cutting edge of the tip blade 31 of the first jaw portion 25 presses against the shearing object 50 in a substantially vertical direction. (Fig. A).

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. A to press the edge surface 31a so as to enter the shearing object 50. .. That is, as shown in FIG. 3, the tip blade 31 having a width smaller than the thickness of the first jaw portion 25 and having an edge surface 31a capable of contacting the shearing object is a shearing object 50 from a substantially vertical direction. Since the first jaw portion 25 and the second jaw portion 26 are rotated by the respective hydraulic drive means 27 and 28, the pressing force satisfactorily generates shear stress, and a high-strength aluminum alloy is to be sheared. However, the cutting edge of the tip blade easily penetrates and a drilling hole is formed.

Further, as the tip blade 31 invades, the drilling hole gradually widens, and while being sheared by the tip taper blade receiving blade 36b of the tip blade receiving blade 36, as shown in FIGS. 5b to c, a fulcrum point is formed. A through hole is cut by shearing between the first parallel shearing blade 33 on the 24 side and the first parallel shearing blade receiving blade 38, and as shown in FIG. 5d, the second parallel shearing blade 34 and the second parallel shearing blade receiver The object to be sheared 50 is sheared by shearing with the blade 39.

FIG. 6 is an explanatory view showing the configuration of a shearing machine for dismantling a large airplane according to another embodiment, FIG. 6A is a side view, FIG. B is an enlarged view of a tip blade, and FIG. 6C is an enlarged view of a tip blade receiving blade. .. In the large airplane dismantling shearing machine 60 of the embodiment shown in FIG. 6, the dismantling shearing machine 60 is arranged between the two panels of the main body 63, similarly to the embodiment shown in FIG. The first jaw portion 65 and the second jaw portion 66, which are rotated relative to the fulcrum 64 between the position and the closed position, are rotated by the first hydraulic drive means 67 and the second hydraulic drive means 68. Will be done.

The first jaw portion 65 includes a tip blade 71, a pair of first parallel shear blades 73, and a pair of second parallel shear blades 74, similarly to the first jaw portion 25 of FIG. The cutting edge of the tip blade 61 is provided with an edge surface 71a and a tip taper blade 71b, and a wall thickness portion 31c is arranged from the edge surface 71 so that the outside in the rotation direction is reinforced to be thicker than the inside. Further, the rear end is provided with a pair of tapered blades 72, a pair of first parallel shear blades 73, and a pair of second parallel shear blades 74. The second jaw portion 66 also has a tip blade receiving blade 76 composed of a width receiving blade 76a and a tip tapered blade receiving blade 76b and a tapered blade receiving blade 77 on the inner wall of the groove portion 75 through which the tip of the first jaw portion 65 passes. , A first parallel shearing blade receiving blade 78 and a second parallel shearing blade receiving blade 79 are provided.

With respect to such a second jaw portion 66, a tip blade receiving blade 76 portion composed of a width receiving blade 76a and a pair of tip tapered blade receiving blades 76b is arranged so as to be inclined in a direction facing the first jaw portion 65. There is. That is, by adjusting the inclination angle so that the pressing direction of the edge portion of the tip blade is perpendicular to the sheared object, the cutting edge does not deviate from the pressing portion and the hydraulic pressure is satisfactorily concentrated at the pressing portion. Can be made.

10 ... Dismantling work platform for large airplanes,
11 ... Self-propelled vehicle,
12 ... Swivel stage,
13 ... Driving cabin,
14 ... Flood control boom,
15 ... Undulating cylinder,
16 ... Hydraulic drive means,
17 ... Flood control generator,
20, 60 ... Shearing machine for dismantling,
21 ... Frame device,
22 ... fulcrum,
23, 63 ... Main body,
24, 64 ... fulcrum,
25, 65 ... Part 1 of Joe,
26, 66 ... 2nd Joe Part,
27, 67 ... 1st hydraulic drive means,
28, 68 ... Second hydraulic drive means,
31, 71 ... Tip blade,
31a, 71a ... Forehead surface,
31b, 71b ... Tip taper blade,
31c, 71c ... Thick part,
32, 72 ... Tapered blade,
33, 73 ... 1st parallel shear blade,
34, 74 ... 2nd parallel shear blade,
35, 75 ... Groove,
36, 76 ... Tip blade receiving blade,
36a, 76a ... Width receiving blade,
36b, 76b ... Tip taper blade receiving blade,
37, 77 ... Tapered blade receiving blade,
38, 78 ... 1st parallel shearing blade receiving blade,
39, 79 ... 2nd parallel shearing blade receiving blade,
50 ... Shearing object,

Claims (2)

A first jaw portion and a second jaw portion for shearing an object to be sheared by a shearing blade equipped so as to rotate relatively between an open position and a closed position, and a second jaw portion.
A shearing machine provided with a first jaw portion and / or a hydraulic drive means for rotating the second jaw portion.
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 arranged in the tip region of the first jaw portion so that the cutting edge penetrates into the shearing object.
A pair of first parallel shear blades arranged on both sides of the first jaw portion adjacent to the tip blade,
A pair of second parallel shear blades, which are bent at an obtuse angle with respect to the attachment portion of the first parallel shear blade and are arranged on both sides of the first jaw portion, are provided.
As the tip blade
An edge portion having a blade width smaller than the thickness of the first jaw portion arranged at the tip of the first jaw portion and first contacting the object to be sheared, and an edge portion arranged on both sides of the edge portion and continuous toward the rear end. A cutting edge blade with a pair of tip taper blades that increase the blade width.
A pair of tapered blades that are bent at an obtuse angle with respect to each attachment portion of the rear end portion of the tip tapered blade of the cutting edge blade and arranged in a direction that separates them from each other over each of the first parallel shear blades. With and
As the shearing blade of the second jaw portion,
A groove portion that allows the tip blade and the pair of the first parallel shear blades and a part of each of the pair of the second parallel shear blades to pass through when moving relative to the first jaw portion.
A tip blade receiving blade arranged on the inner wall surface of the groove portion in a region other than the area through which the first parallel shear blade passes so as to surround the outer peripheral surface of the passing tip blade.
A pair of first parallel shear blade receiving blades arranged along the inner wall surface of the groove portion in the region through which both outer peripheral surfaces of the first parallel shear blade pass, and a pair of first parallel shear blade receiving blades.
A pair of second parallel shear blade receiving blades arranged along the inner wall surface of the groove portion in the region through which both outer peripheral surfaces of the second parallel shear blade pass are provided.
A shearing machine for dismantling a large airplane, characterized in that the outer side in the rotation direction from the edge surface of the cutting edge of the tip blade of the first jaw portion is reinforced as compared with the inner side. A first jaw portion and a second jaw portion for shearing an object to be sheared by a shearing blade equipped so as to rotate relatively between an open position and a closed position, and a second jaw portion.
A shearing machine provided with a first jaw portion and / or a hydraulic drive means for rotating the second jaw portion.
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 arranged in the tip region of the first jaw portion so that the cutting edge penetrates into the shearing object.
A pair of first parallel shear blades arranged on both sides of the first jaw portion adjacent to the tip blade,
A pair of second parallel shear blades, which are bent at an obtuse angle with respect to the attachment portion of the first parallel shear blade and are arranged on both sides of the first jaw portion, are provided.
As the tip blade
An edge portion having a blade width smaller than the thickness of the first jaw portion arranged at the tip of the first jaw portion and first contacting the object to be sheared, and an edge portion arranged on both sides of the edge portion and continuous toward the rear end. A cutting edge blade with a pair of tip taper blades that increase the blade width.
A pair of tapered blades that are bent at an obtuse angle with respect to each attachment portion of the rear end portion of the tip tapered blade of the cutting edge blade and arranged in a direction that separates them from each other over each of the first parallel shear blades. With and
As the shearing blade of the second jaw portion,
A groove portion that allows the tip blade and the pair of the first parallel shear blades and a part of each of the pair of the second parallel shear blades to pass through when moving relative to the first jaw portion.
A tip blade receiving blade arranged on the inner wall surface of the groove portion in a region other than the area through which the first parallel shear blade passes so as to surround the outer peripheral surface of the passing tip blade.
A pair of first parallel shear blade receiving blades arranged along the inner wall surface of the groove portion in the region through which both outer peripheral surfaces of the first parallel shear blade pass, and a pair of first parallel shear blade receiving blades.
A pair of second parallel shear blade receiving blades arranged along the inner wall surface of the groove portion in the region through which both outer peripheral surfaces of the second parallel shear blade pass are provided.
A large size characterized in that the maximum drive output of the first hydraulic drive means for rotating the first jaw portion is larger than the maximum drive output of the second hydraulic drive means for rotating the second jaw portion. Shearing machine for airplane dismantling.

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