JP2011064025A - Cutting device, and demolishing vehicle equipped with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a cutting device which prevents an object to be cut from escaping even when the object is not held firmly against the cutting device at shearing an H-shaped steel etc. used in a steel girder, a pier, a column, etc. <P>SOLUTION: In the cutting device equipped with a pair of cutting blades, a blade fulcrum where the cutting blades pivotally move in a manner of mutually scuffing at the ends thereof, and an opening/closing drive means opening and closing the cutting blades at the blade fulcrum, a pair of projections are respectively arranged to face each other on the pair of cutting blades at the positions near the blade fulcrum. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cutting device suitable for performing, for example, automobile scrap dismantling work, building separation dismantling work, and the like, and a dismantling work vehicle equipped with the cutting apparatus.

  Although it is now the past, dismantling work of automobile scraps is inefficient by removing piles of scrap car bodies one by one with a crane and transporting them with a transport vehicle, and cutting torches etc. at a scrap factory workplace. Cutting and removing parts.

  In contrast, the present inventor attaches a pair of opening and closing arms that open and close in the horizontal direction to the vehicle body of a self-propelled vehicle equipped with a hydraulic operation boom having an opening and closing work tool at the tip so that the hydraulic operation boom can turn and prone. Proposing a dismantling device (see, for example, Patent Document 1) in which various working hands such as a holding tool for rotatably holding a scrap object and a split tool for breaking or crushing the object are attached to the arm, The dismantling work was carried out efficiently and efficiently, and some sort of scrap could be collected.

  In addition, among various scraps, for example, dismantling of other scraps such as household appliances and building waste materials was excluded from normal handling, so various scraps are accumulated in various places and waiting for dismantling. . For example, in scraps such as electric washing machines, the outer casing and washing tub must be separated from the internal motor, and the electric refrigerator must also be separated from the casing and inner insulation and compressor. . However, in conventional dismantling work vehicles, the electric motor and compressor inside these cannot be taken out directly with the opening and closing work tool at the end of the boom, and processing such as dismantling by another manual operation or unavoidable disposal as one is performed. It was.

  Under such circumstances, the present inventor has increased the handling range of the separation and collection of scrap objects in terms of size and strength, and efficiently performed the separation and disassembly work of various scraps including scrapped vehicles at their collection locations. Proposed a multi-purpose scrap dismantling work vehicle (see, for example, Patent Document 2).

  Also, for example, dissimilar metal parts to be separated and collected, such as scraps of water distribution pipes, such as pipe parts and valve parts, are small, hard and firmly fixed. Since it cannot be handled by a work vehicle, in many cases it was disposed without separate collection. In this case, the pipe part is relatively inexpensive iron scrap, the valve part is relatively expensive gunmetal, etc., and if it is collected separately, an economic effect can be obtained. Etc. are wasted.

  Furthermore, in recent years, the idea of recycling has increased, and there has been a growing tendency to recycle building waste materials that can be reused rather than landfilled. For example, in large-scale housing such as condominiums, the distribution lines that distribute electricity to each house can be reused as copper resources, the aluminum sash frame as aluminum resources, the reinforcing steel in the reinforced concrete as iron resources, and the concrete pieces as gravel for road paving It is.

Distribution lines for large-scale houses are thick, and some have a cross-sectional area of 400 mm ² (stranded), and the material is high-quality copper. At the time of resource distribution of this distribution line, it was difficult to cut with the work tools provided in the conventional dismantling work vehicle, and moreover, the insulating layer could not be peeled off to separate high-quality copper materials. .

  For this purpose, the present inventor has provided a pair of cutting blades at one end on the vehicle body side between a pair of left and right work arms that can be driven to move up and down at the front or rear of the vehicle body. A dismantling work vehicle equipped with a cutting device that pivots so that a pair of cutting blades rub against each other is proposed (see Patent Document 3), and this high-power cutting device enables expensive and rare value gun metal in scrap. And copper can be recovered.

Japanese Patent Publication No. 3-78460 Japanese Patent No. 3101717 JP 2006-57331 A

  In the demolition work vehicle equipped with this high-power cutting device, steel materials such as H-shaped steel used for large steel beams such as bridges and tower buildings, legs, columns, etc. are used for shearing with a shearing blade. When cutting, when a pair of cutting blades are rubbed together, a hard workpiece such as steel will gradually move forward, and it is necessary to hold down firmly so that this workpiece does not rub against the outside. there were.

  An object of the present invention is to obtain a cutting device suitable for carrying out automobile scrap demolition work, building separation and demolition work, and a demolition work vehicle equipped with this cutting device, and in particular, for bridges, tower buildings, etc. When cutting a workpiece such as H-shaped steel used for large steel beams, legs, columns, etc. with a shearing blade for the purpose of dismantling, firmly cut the workpiece against the cutting device. It is an object of the present invention to obtain a cutting device that does not allow the workpieces to rub against each other without holding down and a dismantling vehicle equipped with the cutting device.

The cutting device according to the first aspect of the present invention includes a pair of cutting blade portions, a blade portion fulcrum that pivots so as to rub against each other at one end of each of the pair of cutting blade portions, and the blade portion fulcrum. In the cutting device comprising the opening and closing drive means for opening and closing the pair of cutting blades,
And a pair of projecting portions projecting to face each other of the pair of cutting blade portions adjacent to the blade portion fulcrum.

  According to a second aspect of the present invention, there is provided a cutting device according to the first aspect, wherein the pair of protrusions are provided by arranging stepped edges of the partial cutting blades disposed adjacent to each other. It is what.

A dismantling work vehicle equipped with the cutting device according to the third aspect of the present invention includes a hydraulic hydraulic boom that can be swung on a vehicle body of a self-propelled vehicle and a remote operation that is attached to the tip of the boom. In a dismantling work vehicle equipped with a dismantling work pen that opens and closes by
The dismantling work penturator includes a pair of cutting blades, a blade fulcrum pivoting so as to rub against each other at one end of each of the pair of cutting blades, and the pair of cutting blades at the blade fulcrum And an opening / closing drive means for opening / closing and a pair of protrusions projecting to face each other of the pair of cutting blade portions adjacent to the blade portion fulcrum.

A dismantling work vehicle equipped with a cutting device according to the invention described in claim 4 includes a hydraulic hydraulic boom that can be raised and lowered mounted on a vehicle body of a self-propelled vehicle, and a remote operation that is attached to the tip of the boom. A dismantling work pen that opens and closes by a pair, a pair of left and right work arms that can be driven to undulate at the front or rear of the vehicle body, and a position close to the pivotal fulcrum of the pair of work arms. In a dismantling work vehicle equipped with a cutting device for cutting an object to be cut,
The cutting device includes a pair of cutting blades, a blade fulcrum pivoting so as to rub against each other at one end of each of the pair of cutting blades, the other end of each of the cutting blades, and the pair of And a pair of projections provided so as to face each other of the pair of cutting blades close to the blade fulcrum. And a protrusion.

  The present invention provides a cutting device for cutting objects such as steel materials such as H-shaped steel used for large steel beams such as bridges and steel tower buildings, legs and columns. There is an effect that the objects to be cut do not rub against each other even if they are not pressed firmly against each other.

It is a front view which shows one Example of the dismantling work vehicle provided with the cutting device of this invention. It is a top view of FIG. It is a top view of the work arm of the dismantling work vehicle of FIG. FIG. 4 is a perspective view of FIG. 3. It is explanatory drawing explaining operation | movement of the cutting device between the work arms of FIG. It is a top view of another Example of a working arm. It is a front view which shows another Example of the dismantling work vehicle provided with the cutting device of this invention. FIG. 8 is an explanatory diagram for explaining a configuration of a dismantling work punch shown in FIG. 7.

  In the present invention, a pair of cutting blades, a blade fulcrum pivoting so as to rub against each other at one end of each of the pair of cutting blades, and opening and closing the pair of cutting blades by the blade fulcrum A cutting apparatus including an opening / closing driving means for driving includes a pair of projecting portions protruding so as to face each other of the pair of cutting blade portions adjacent to the blade portion fulcrum. As a result, the pair of protrusions first bite into the object to be cut, and the protrusions bite into each other even if the object to be cut rubs against each other even if the object to be cut is not pressed firmly against the cutting device. There is no effect.

  The cutting device of the present invention includes a pair of cutting blades, a blade fulcrum pivoting so as to rub against each other at one end of each of the pair of cutting blades, and the pair of cutting blades at the blade fulcrum What is necessary is just to provide the opening-and-closing drive means which opens and closes a part.

  The protrusion of the present invention may be any protrusion provided so as to face each other of the pair of cutting blades close to the blade fulcrum. More specifically, it is preferable to adjust the shape of the protrusion and the direction of the tip so that the protrusion pushes the object to be cut in the direction of the blade fulcrum when the blade fulcrum is closed and rotated.

  Specific examples of the structure of the protrusions according to the present invention include those in which the plane has a protrusion shape such as a semicircular shape, a triangular shape, or a quadrangular shape. As a preferred embodiment, a pair of protrusions are formed by arranging the edges of the partial cutting blades arranged adjacent to each other in a step shape. Moreover, since it is sufficient that at least one pair is provided for the number, only a pair of protrusions may be arranged to face each other, or a plurality of protrusions may be continuously combined and arranged in a tooth shape.

  The cutting device of the present invention is suitable for dismantling work of automobile scraps, steel materials such as H-shaped steel used for large steel beams, legs, columns, etc. such as bridges and tower buildings. Therefore, it can be attached to a dismantling work vehicle. Specifically, the cutting blade is opened and closed by remote control attached to the tip of a hydraulic boom that can be raised and lowered mounted on the vehicle body of the self-propelled vehicle of the dismantling work vehicle in Patent Document 2 and Patent Document 3 etc. In the same way, the dismantling work punch is used as the pivot point of the pair of left and right work arms that can be opened and closed with high output, which is mounted on the front or rear of the vehicle body in the same manner as in Patent Document 2 and Patent Document 3, etc. A cutting device that shears an object to be cut at a close position can be used.

  More specifically, a dismantling work comprising a hydraulic hydraulic boom that can be raised and lowered mounted on the body of a self-propelled vehicle, and a dismantling work pen that is opened and closed by remote operation attached to the tip of the boom. In the vehicle, the dismantling work punch includes a pair of cutting blades, a blade fulcrum that pivots so as to rub against each other at one end of each of the pair of cutting blades, and the pair of cutting blades Opening / closing drive means for opening / closing the cutting blade portion, and a pair of projecting portions protruding so as to face each other of the pair of cutting blade portions close to the blade portion fulcrum. As a result, when the object to be cut is cut with the dismantling work punch, the objects to be cut do not rub against each other and can be easily cut.

  Also, a hydraulically actuable boom that can be raised and lowered mounted on the vehicle body of the self-propelled vehicle, a demolition work pen that is opened and closed by remote operation attached to the tip of the boom, and a front or rear portion of the vehicle body In the dismantling work vehicle comprising a pair of left and right work arms that are capable of opening and closing and capable of driving up and down, and a cutting device that cuts an object to be cut at a position close to a pivotal fulcrum of the pair of work arms. The apparatus includes a pair of cutting blades, a blade fulcrum pivoting so as to rub against each other at one end of each of the pair of cutting blades, each other end of each of the cutting blades, and the pair of operations. A pair of protrusions that are connected to each of the arms and transmit the opening / closing movement of the arm to each of the cutting blades, and a pair of protrusions that face each other of the pair of cutting blades adjacent to the blade fulcrum. A part. As a result, when the workpiece is cut by the opening / closing operation of the work arm, even if the workpiece is not pressed firmly against the cutting device, it can be easily cut without escaping to the outside. it can.

  FIG. 1 is a front view showing an example of a dismantling work vehicle equipped with the cutting device of the present invention, and FIG. 2 is a plan view of FIG. The figure shows an example in which a hydraulic backhoe is used as a self-propelled vehicle. FIG. 3 is an explanatory view for explaining the structure of the dismantling work pen shown in FIG. FIG. 4 is a perspective view of FIG. FIG. 5 is an explanatory view for explaining the operation of the cutting device between the work arms of FIG. FIG. 6 is a plan view of another embodiment of the working arm.

  1 and 2, a vehicle 1 that can be moved by a pair of track belts 4 is equipped with a turning stage 2 that is driven by a part of engine output. In addition, a hydraulic pressure generator 5 serving as a drive source for each mounted hydraulic piston cylinder device is mounted behind the stage 2. On the stage 2, an operation cabin 3 is provided on the left side of the front part so as to face forward when traveling, and a boom 6 is pivotally supported by a hoisting cylinder 7 at the center part.

  The boom 6 is folded when transported, and a dismantling work pen 20 is mounted on the tip of the boom 6. The punch 20 is attached to the tip of the hydraulic operation boom 6 via a punch turntable 19. The pendulum turntable 19 can be rotated in the desired direction by rotating the pendulum 20 forward and backward around its axis by hydraulic or electric remote control from the cabin 3.

  The puncher 20 is composed of a pair of arm portions including a fixed arm portion 21a fixed to the turntable 19 and a drive arm portion 21b that is driven to open and close around a fulcrum 22 by hydraulic pressure. On the opposite side of the pair of arm portions, a cutting blade 23 and a clamping portion 24 are arranged in order from the fulcrum 22 toward the outside.

  Further, a support block 8 is attached to the front portion of the vehicle 1 by a pivot shaft 9 so that the support block 8 can be turned up and down, and the support block 8 is provided with a hydraulic piston that protrudes forward from the vehicle body 1. It is driven by the cylinder device 10. A pair of arms 12a and 12b that can be opened and closed in the horizontal direction by pivot support points 11a and 11b arranged close to each other are provided on the front surface of the support block 8 so as to protrude forward. Piston rod tips of hydraulic piston cylinder devices 13a and 13b for opening and closing the arm with the block 8 are connected by smooth shafts 14a and 14b.

  A cutting device 25 that, on the inner surfaces of the arms 12a and 12b that face each other, in order from the pivot fulcrums 11a and 11b side, is clamped by the closing operation of the arms 12a and 12b to shear the workpiece into two, Clamping tools 15a and 15b each having a bowl-shaped concave surface for clamping the workpiece to be clamped between the arms are fixed.

  A pair of projecting tools 16a and 16b are erected on the upper portions of the holding tools 15a and 15b. The pair of projecting tools 16a and 16b are bent halfway so as to be separated from each other as they go upward. By using the projecting tools 16a and 16b, it is possible to perform splitting work of the dismantling object.

  Further, by using the projecting tools 16a and 16b erected on the upper portions of the holding tools 15a and 15b, when the object to be disassembled is an annular object, the arm 12a and 12b is opened by hooking the annular inner diameter. By doing so, it is pulled in the radial direction. It can cut | disconnect efficiently by fracture | rupturing between this with the breaker operation | use pen tip 20 of a boom tip.

  2, 3, 4, and 5, the cutting device 25 includes a pair of cutting blade portions 26 a, 26 at a blade portion fulcrum 27 formed at the end of the pair of cutting blade portions 26 a, 26 b on the vehicle body side. 26b is pivoted to rub against each other. Further, the other ends of the pair of cutting blade portions 26a and 26b are provided with connecting tools 28a and 28b, respectively, and are connected to the arms 12a and 12b by the connecting tools 28a and 28b. By opening and closing the arms 12a and 12b, the cutting blade portions 26a and 26b are opened and closed as shown in FIG. 5, and the object to be cut sandwiched therebetween is sheared.

  The blade line of the partial cutting blade 29 that is detachably attached to the pair of cutting blade portions 26a, 26b is a single blade sharpened on the opposite side of the rubbing surface, so that chips are cut when the workpiece is cut. It is hard to get out and can perform good dismantling work. The partial cutting edge 29 has a stepped shape in which the end edge position of the partial cutting edge 29a closest to the fulcrum 27 is retracted closer to the cutting edge than the edge positions of the other partial cutting edges 29.

  For this reason, the fulcrum 27 side of the partial cutting blade 29 adjacent to the outside of the partial cutting blade 29a closest to the fulcrum 27 becomes a protrusion, such as H-shaped steel used for large steel beams, legs, columns, etc. Even if a large object to be cut is not pressed firmly against the cutting device, the objects to be cut do not easily rub against each other. Further, the protrusion on the fulcrum 27 side of the partial cutting blade 29 adjacent to the outside of the partial cutting blade 29a is adjusted so that the direction of the tip is on the fulcrum 27 side (inward). The projecting portion pushes the workpiece in the direction of the blade fulcrum when it is closed and turned. Thereby, when the workpiece is cut by the opening / closing operation of the pair of arms 12a and 12b, even if the workpiece is not pressed firmly against the cutting device 25, the cutting work is performed without escaping to the outside. It can be done easily. As shown in FIG. 5, the partial cutting blade 29 is a single blade, but the attachment depth to the cutting blade portion 26 may be increased and the two may be stacked and attached. Thus, even if one of the rubbing partial cutting edges is missing, the stacked second blade can be used, and replacement is facilitated by changing the stacking of the stacked partial cutting edges.

  FIG. 6 is a plan view of another embodiment of the working arm. The working arm shown in FIG. 6 is different from the working arm shown in FIG. 3 only in the cutting device 30. For this reason, the same code | symbol is attached | subjected to the structure similar to the working arm of FIGS. 1-4, and description is abbreviate | omitted. As shown in FIG. 6, the cutting device 30 pivots so that the pair of cutting blade portions 31a and 31b rub against each other at the blade portion fulcrum 32 formed at the end of the pair of cutting blade portions 31a and 31b on the vehicle body side. Is done. Further, the other end portions of the pair of cutting blade portions 31a and 31b are provided with connecting tools 33a and 33b, respectively, and are connected to the arms 12a and 12b by the connecting tools 33a and 33b.

  The blade line of the partial cutting blade 34 that is detachably attached to the pair of cutting blade portions 31a and 31b is a single blade sharpened on the opposite side of the rubbing surface, so that chips are cut when the workpiece is cut. It is hard to get out and can perform good dismantling work. The partial cutting edge 34 is attached with partial cutting edges 34b, 34c, 34d extending from the partial cutting edge 34a closest to the fulcrum 32 toward the cutting edge portion facing the outer edge in order from the partial cutting edge 34a. It has become.

  Therefore, the fulcrum 32 side of the partial cutting edge 34b adjacent to the outside of the partial cutting edge 34a closest to the fulcrum 32 is the first protrusion, the fulcrum 32 side of the partial cutting edge 34c is the second protrusion, The fulcrum 32 side of the outermost partial cutting edge 34d becomes the third protrusion, and the large cut object such as H-shaped steel used for large steel beams, legs, columns, etc. is firmly opposed to the cutting device. Even if it does not hold down, it has the composition that the object to be cut does not escape to the outside by rubbing.

  Furthermore, since all of the first protrusion, the second protrusion, and the third protrusion have the tip direction adjusted to the fulcrum 32 side, when the cutting blade portions 31a and 31b are turned and closed, The protrusion is to push the object to be cut toward the blade fulcrum. Thus, when the workpiece is cut by the opening / closing operation of the pair of arms 12a and 12b, even if the workpiece is not pressed firmly against the cutting device 30, the cutting operation is performed without escaping to the outside. It can be done easily.

  FIG. 7 is a front view showing another embodiment of the dismantling work vehicle equipped with the cutting device of the present invention. FIG. 8 is an explanatory view for explaining the structure of the dismantling work pen shown in FIG. The dismantling work vehicle shown in FIG. 7 differs from the dismantling work vehicle shown in FIG. 1 only in the dismantling work pen 40. For this reason, the same code | symbol is attached | subjected to the structure similar to FIG. 1, and description is abbreviate | omitted.

  The puncher 40 includes a pair of arm portions 41 fixed to the turntable 19 and a pair of hydraulic piston cylinder devices 43 that open and close the pair of arm portions 41 around the respective fulcrums 42. A plurality of cutting blades 44 are disposed at the opposing positions of the pair of arm portions 41 excluding the tip portions.

  As with the cutting device 25 shown in FIG. 3, the plurality of cutting blades 44 are such that the edge position of the cutting blade 44 a closest to each fulcrum 42 is closer to the arm portion than the edge positions of the other cutting blades 44. It is in a state of being retracted into a step. For this reason, the fulcrum 42 side of the cutting blade 44 adjacent to the outer side of the cutting blade 44a closest to the fulcrum 42 becomes a protrusion, and it is not necessary to firmly hold a hard or thick workpiece against the cutting device. The cut object is difficult to escape to the outside.

  In addition, since it can clamp with the front-end | tip part of a pair of arm part 41 if it is a thick rod-shaped thing, it is also possible to use a front-end | tip part as a jig | tool today.

1 ... vehicle,
2 ... swivel stage,
3 ... driving cabin,
4 ... Track belt,
5 ... hydraulic generator,
6 ... Boom,
7 ... Rolling cylinder,
8 ... support block,
9 ... Pivot axis,
10 ... Hydraulic piston cylinder device,
11a, 11b ... pivot point,
12a, 12b ... working arm,
13a, 13b ... hydraulic piston cylinder device,
14a, 14b ... smooth shaft,
15a, 15b ... clamping devices,
16a, 16b ... projecting tool,
19 ... turntable,
20 ... Pencher,
21a ... fixed arm part,
21b ... Drive arm,
22 ... fulcrum,
23 ... cutting blade,
24 ... clamping part,
25 ... Cutting device,
26a, 26b ... cutting blade part,
27 ... Blade fulcrum,
28a, 28b ... connector,
29 ... Partial cutting blade,
29a ... the partial cutting blade closest to the fulcrum,
30 ... Cutting device,
31a, 31b ... cutting blade part,
32 ... Blade fulcrum,
33a, 33b ... connector,
34 ... Partial cutting blade,
34a ... the partial cutting blade closest to the fulcrum,
34b ... a partial cutting blade next to 34a,
34c ... a partial cutting edge next to 34b,
34d ... a partial cutting edge next to 34c,
40 ... Pencher,
41 ... A pair of arm parts,
42 ... fulcrum,
43 ... A pair of hydraulic piston cylinder devices,
44 ... cutting blade,
44a ... the cutting blade closest to the fulcrum,

Claims (4)

A pair of cutting blade portions, a blade fulcrum pivoting so as to rub against each other at one end of each of the pair of cutting blade portions, and an opening / closing drive means for opening and closing the pair of cutting blade portions at the blade portion fulcrum In a cutting device comprising:
A cutting apparatus comprising: a pair of projecting portions projecting from each other of the pair of cutting blade portions adjacent to the blade portion fulcrum.   The cutting device according to claim 1, wherein the pair of protrusions are formed by stepping edges of partial cutting blades arranged adjacent to each other. In a dismantling work vehicle comprising a hydraulic operation boom that can be raised and lowered mounted on a vehicle body of a self-propelled vehicle, and a disassembly work pen that is opened and closed by remote operation attached to the tip of the boom,
The dismantling work penturator includes a pair of cutting blades, a blade fulcrum pivoting so as to rub against each other at one end of each of the pair of cutting blades, and the pair of cutting blades at the blade fulcrum A dismantling work vehicle comprising: an opening / closing drive means for opening and closing the door; and a pair of protrusions protruding so as to face each other of the pair of cutting blade portions adjacent to the blade portion fulcrum. A hydraulically actuable boom that can be raised and lowered mounted on the vehicle body of a self-propelled vehicle, a demolition work pen that is opened and closed by remote control attached to the tip of the boom, and a hoisting drive at the front or rear of the vehicle body In a dismantling work vehicle equipped with a pair of left and right work arms that can be opened and closed and equipped with a cutting device that cuts an object to be cut in a position close to the pivotal fulcrum of the pair of work arms,
The cutting device includes a pair of cutting blades, a blade fulcrum pivoting so as to rub against each other at one end of each of the pair of cutting blades, the other end of each of the cutting blades, and the pair of And a pair of projections provided so as to face each other of the pair of cutting blades close to the blade fulcrum. A dismantling work vehicle characterized by comprising a protrusion.

Images