JPH0378460B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dismantling device, and more particularly to a maneuverable dismantling device for dismantling scrapped automobile engines, used tires, and the like.

[Conventional technology] In conventional scrap car dismantling work,
After removing the wheels, engine, and other parts, the car body and chassis are pressed into a compressed block. Electrical parts are removed from the engine by hand, and old tires are separated from the wheels by hand or using a special tire-wheel separator. In addition, good quality tires are recycled as raw materials for recycled tires.

In recent years, various raw materials have been recovered from scrap due to resource shortages, and among these, the recovery of relatively expensive aluminum is particularly popular.

In recent automobiles, many aluminum alloys are used in engines to reduce the weight of the car body, and when disposing of a car, the engine taken from a scrapped car is put into a heating furnace and the aluminum melting temperature is increased. Aluminum is recovered by heating to the above temperature.

At this time, conventionally, external parts of the engine, such as the dynamo, compressor, various electrical components, muffler, air cleaner, carburetor, etc., were removed manually or mechanically, and then the engine body was warped and placed in a melting furnace. Aluminum is recovered from the furnace by charging it and heating it above the melting temperature.

On the other hand, there is also a demand for resource recovery for old tires, and the removal of tires from wheels as a recycled tire resource is done by hand or one by one using special machines.

[Problems to be Solved by the Invention] As mentioned above, conventional scrap car dismantling is mostly done by hand or using special machines, and the engine requires special tools and machines, and the tires This required specialized tools and machines for tires.

Furthermore, in recent automobile engines, most of the engine housings are made of aluminum die-casting to reduce weight and improve formability, and the internal pistons and crankshafts are made of iron alloys with excellent strength. Therefore, when recovering aluminum from such engine scrap, metal parts with a higher melting point than aluminum are simply heated in the melting furnace and then taken out of the furnace as is. This resulted in the consumption of heat energy, which had the disadvantage of increasing fuel costs for the furnace.

Furthermore, as used tires are processed one by one by hand or with special machines to recover recycled tire resources, a huge amount of old tires are produced, usually five each including the spare tire, from one car. Unable to keep up with the demand, we had no choice but to crush the old tires radially along with the tires, deform the wheels and remove them without worrying about the tires being cut, ensuring mass disposal even if we had to give up some of the recovery of recycled tire resources. The need arose.

The present invention has been made in view of these points, and provides a device that can safely and efficiently dismantle various objects such as scrap engines and old tires using the mechanical power of the same device. ,
Dissimilar metal parts can be separated and dismantled efficiently, for example, only aluminum engine parts can be fed into a blast furnace to improve thermal efficiency, and old tires can be separated into wheels without damaging them. The purpose of this invention is to provide a dismantling device that has the following features.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the dismantling apparatus according to the invention set forth in claim 1 of the present application is equipped with a boom having an opening/closing work tool at its tip so as to be able to turn and lie down. A pair of opening/closing arms whose tips can be opened and closed in a horizontal direction are attached to the body of the self-propelled work vehicle, and the opening/closing arms can be pressurized to open and close by hydraulic operation, and the pair of opening/closing arms are provided with: A plurality of pairs of hand mounting seats facing each other are provided between the pair of opening/closing arms, and a working hand for clamping the object to be dismantled can be exchangeably fixed to each of the mounting seats.

In the disassembling apparatus according to the invention set forth in claim 2, in the disassembling apparatus according to the invention set forth in claim 1, a pair of hand mounting seats are slid along the opening/closing arm in place of the plurality of pairs of hand mounting seats. It is set up so that it can be moved freely.

In the disassembling apparatus according to the invention set forth in claim 3, in the disassembling apparatus according to the invention set forth in claim 1, a pair of hand mounting seats are provided at the tip of the opening/closing arm in place of the plurality of pairs of hand mounting seats. With,
The opening/closing arm is extendable and retractable.

In the dismantling apparatus according to the invention according to claim 4, the opening/closing arm is provided with one or more pairs of facing recesses for holding the object to be dismantled therebetween, and the hand is attached to the periphery of the recess. A locus is formed.

In the dismantling apparatus according to the fifth aspect of the invention, each of the pair or plural pairs of work hands has a concave shape facing each other on an inner side surface of the opening/closing arm.

In the dismantling apparatus according to the sixth aspect of the invention, each of the pair or plural pairs of working hands has a convex shape facing each other on an inner side surface of the opening/closing arm.

In the disassembling apparatus according to the seventh aspect of the invention, each of the pair or plural pairs of working hands has male and female concave and convex shapes facing each other on the inner side surface of the opening/closing arm.

In the dismantling apparatus according to the invention as set forth in claim 8, of the pair or plural pairs of work hands, at least the pair of work hands on the distal end side of the opening/closing arms is provided with a part inside the arm when the pair of opening/closing arms are brought close to each other. Each is equipped with a horizontal table half forming a support surface with a gap approximately centrally between the sides.

In the dismantling apparatus according to the invention as set forth in claim 9, the gap at the center of the support surface is set to have a width larger than the outer diameter of the wheel fitted to the tire when the tire is placed on the support surface, and the horizontal table The front upper edges of the half members facing each other have an edge shape that allows them to bite into the disc side rim of the tire wheel placed on the support surface almost horizontally when the opening/closing arm is driven in the closing direction. be.

[Function] In the disassembly apparatus according to the invention as set forth in claim 1, first, the work hands are respectively fixed to the plurality of pairs of mounting seats of the opening/closing arm. In this case, the pressing force of each pair of work hands when closing the opening/closing arm differs depending on the mounting position. That is, the work hand attached to the tip side of the opening/closing arm (a position away from the self-propelled work vehicle) is weak, and the work hand attached to the base side of the opening/closing arm (position close to the self-propelled work vehicle) is strong.

Next, the object to be dismantled, for example, a scrap engine, is grabbed using the opening/closing work tool at the tip of the boom, and placed between the pair of work hands on the tip of the opening/closing arm, and the boom and opening/closing work tool are attached to the driver's seat of the work vehicle. Adjust the desired direction and position by operating from The parts are grasped by the opening/closing tool at the tip of the boom and torn into pieces. During this time, if the clamping by the opening/closing arm is loosened, the engine can be rotated around the axis connecting the clamping points by operating the boom and the opening/closing work tool, and the posture of the engine can be changed. Surrounding accessories can be easily and efficiently removed by the linked operation of the boom and the opening/closing work tool (hereinafter, this removal work will be referred to as "pretreatment"). After pretreatment, the engine becomes a composite of aluminum and cast iron.

Next, the engine that has undergone this pretreatment is moved between a pair of work hands on the base side of the opening/closing arm using the opening/closing work tool. When the opening/closing arm is driven in the closing direction, the pressing force of the work hand on the base side is strong as described above, so the engine is strongly pinched, and aluminum products such as the cylinder head can be broken (see below). (The process of breaking this aluminum product is called "engine breaking.")

Additionally, depending on the content of the work, it is also possible to simultaneously attach different types of work hands to the tip and base sides of the opening/closing arm.

On the other hand, in the dismantling apparatus according to the invention as set forth in claims 2 and 3, there is only one pair of mounting seats. Therefore, only one pair of working hands can be attached.
However, in the dismantling device according to the invention set forth in claim 2, since the pair of mounting seats are provided so as to be slidable along the opening/closing arm, the dismantling apparatus according to the invention set forth in claim 1 is The pressing force of the working hand changes at the same time as the dismantling device according to the invention. Similarly, claim 3
In the dismantling apparatus according to the invention described in 1, the opening/closing arm is extendable and retractable, so the pressing force of the working hand changes depending on the extension/retraction position. In the dismantling apparatus according to the invention described in Claims 2 and 3, the engine is pretreated while the pair of work hands are placed at a position away from the self-propelled work vehicle, and the pair of work hands are placed at a position close to the self-propelled work vehicle. Perform the engine split while it is in place. In this case, the work hand can be replaced with a desired type depending on the content of the work.

By the way, in the case where the opening/closing arm is provided with facing recesses according to claim 4 and the hand mounting seat is formed around the periphery, the recess itself provides a support surface for holding the engine, etc. The clamping operation can be performed without the hands attached.

Further, each of the mounting seats of the opening/closing arm is provided with claim 5.
Alternatively, if work hands with concave or convex shapes facing each other are attached according to 6 or 7, the opening/closing arm is strongly clamped by hydraulic operation to the object to be dismantled sandwiched between the work hands, thereby concentrating on that part. It is possible to apply strong pressure. This is particularly effective when the work hand is attached to the base of the opening/closing arm or close to the self-propelled work vehicle. By applying this strong pressure, the object can be broken at stress concentration points, and the object can be divided from there. For example, in automobile engines, if strong pressure is applied to the boundaries between the engine housing and the transmission case, or between the engine housing and the cylinder head cover, these can easily crack at the boundaries and become separated at the joints of dissimilar metals. For example, these dissimilar metals can be recovered separately. The divided parts can be handled by grasping them with the opening/closing work tool at the tip of the boom, and the work of breaking the remaining small parts can be done with the opening/closing work tool itself.

Particularly, in the dismantling apparatus according to claim 7, the working hands having male and female uneven shapes facing each other are fixed to the mounting seat of the opening/closing arm, and the object is strongly pinched between both the working hands. Destroy an object by bending.

The dismantling apparatus according to claims 8 and 9 is particularly suitable for tire-wheel separation work, and this can also be accomplished by replacing the work hands. That is, when a working hand having a horizontal table half member is fixed to the mounting seat at the tip of the opening/closing arm, a support surface with a gap approximately in the center between the tips of the arms is formed when the opening/closing arm is properly closed. Grasp the old tire using the opening/closing tool at the tip of the boom and place it flat on the support surface with the disc side of the disc wheel facing down, making sure that the rim part of the disc side of the disc wheel fits into the gap. Sort out old tires. Next, by hydraulically operating the boom and the opening/closing work tool, the tire is slightly pushed in at a symmetrical position on the outside of the wheel while the opening/closing work tool is opened slightly wider than the outer diameter of the wheel, and the opening/closing work tool is closed. By pushing the rim portion of the drum open end side facing upward from the outside toward the center and deforming it, and causing this deformation to occur at multiple locations in the circumferential direction of the wheel, the rim portion is substantially The drum is deformed so that the contour of the side drum fits inside the rim bore of the tire. After that, since the drum open end side of the wheel has already been deformed into a reduced diameter shape, the boom and opening/closing work tool are used to push the wheel downwards from the gap in the center of the support base, and the separated tire and wheel are separated. Export separately.

Here, in the invention described in claim 9, the front upper edge of the horizontal table half member is formed in the edge shape, so that the old tire wheel placed on the support base in alignment with the hole can be used as an opening/closing tool. When the opening/closing arm is pressed down from above and the opening/closing arm is further closed while keeping the disk side rim located on the lower side of the wheel lower than the upper edge of the gap, the front upper edge of the edge shape of both horizontal table half members is , bites into and grabs the disk-side rim on the lower side of the wheel that has been pushed down into the gap, and after deforming the wheel drum side inward in the same way as described above, the tire is opened and closed using an opening/closing tool. It can also be separated from the wheel by pulling it up.

In order to further clarify the features and advantages of the present invention,
A preferred embodiment will be described below with reference to the accompanying drawings.

[Embodiment] FIG. 1 shows the appearance of a dismantling apparatus according to an embodiment of the present invention.

In the figure, 10, 12, 14, 16, 18,
10 and 12 are first and second arms constituting a boom, which can be operated prone by hydraulic pressure. 14 is the upper body structure of the working vehicle, and the caterpillar 16
It is rotatably mounted on the lower body structure that can be self-propelled, and the first
An arm 10 is pivotally supported. In addition, superstructure 1
A part of the vehicle 4 is provided with a cockpit 18 for an operator to enter and operate the vehicle.

Reference numeral 20 designates an earth removal plate with a bracket, which is installed at the front of the work vehicle so as to be movable up and down by two arms 22, and a pair of brackets 21 on the front side are each connected to a pair of brackets 21 by pivot shafts 26. An opening/closing arm 24 is attached, and the tip of the opening/closing arm 24 can be opened and closed to the left and right by hydraulic operation from the cockpit 18 using a "lever" principle using a pivot shaft 26 as a fulcrum. In this case, the shaft hole at the base of each arm 24, through which the pivot shaft 26 passes, should be formed into an elliptical hole shape with a predetermined angle so that the tip of each opening/closing arm moves as close to parallel as possible in response to the opening/closing operation. good.

A plurality of pairs of recesses 25 facing each other and a hand mounting seat 27 on the periphery thereof are formed on the opposing surface side of each opening/closing arm 24. Various work hands are removably fixed.

That is, in the example shown in FIG. 1, the tips of the opening/closing arms 24 are formed in recesses 25 facing each other.
It is also possible to directly hold the object to be dismantled by this recess 25, but in that case, there is a risk of damaging the mounting seat 27 on the periphery, so it is preferable to
A work hand for clamping work as shown in E is attached to the mounting seat 27 with bolts, and disassembly work is performed.

The working hand 28a shown in FIG. 2A is circular with a mortar-shaped recess, the working hand 28b shown in FIG. 2B is square with a valley-like recess, and the second
The work hand 28c shown in Figure C is a square type with an inverted pyramid-shaped recess, and the work hand 28d shown in Figure 2D is a square type with a valley-like recess with notches. The work hand 28e shown is a square type in which the center of the valley-shaped recess is a smooth concave surface and both sides are formed into jagged concave surfaces.

In this embodiment, the mounting seat 27 and each work hand 2
The work hands 28a to 8e are mounted on a square mounting surface using bolt holes spaced at equal angular intervals.
It can be installed by changing the direction 180 degrees. In addition, these work hands 28a to 28e have a support surface including a recess on the front surface, and when they are attached to the ends of the opening/closing arms on both sides and grip an object to be dismantled between them, the gripping pressure can be slightly relaxed. The object to be dismantled can be rotated by external force around an axis passing between the clamping points while the object to be dismantled is being held, and the working hand itself is equipped with a configuration that can be rotationally driven to perform this rotation by remote control. You can leave it there.

Note that the working hands 28a to 28e are concave-type examples suitable for gripping when both ends of the object to be dismantled have a protruding shape; A work hand 28p having a plate-like protrusion or a work hand 28q having a conical protrusion may be attached. Further, these protrusion type work hands 28p, 28q, etc. can also be used as buckling division work hands described below.

Another example of a working hand that is replaceably fixed to the mounting seat 27 is shown in FIGS. 3 and 4.

That is, FIG. 3 shows various examples of work hands for pinching the object to be dismantled from both sides at the tip of the opening/closing arm and breaking it by stress concentration or buckling. In FIG. 3, the work hand 28f has an approximately triangular prism-like male ram shape;
8g has a female ram shape corresponding to the male ram shape, the working hand 28h has the male ram shape with a concave part at the center of the ridge line, and the working hand 28i has a concave part in the center of the ridge line part. The working hand 28j has a convex portion, the working hand 28j has a plurality of triangular projections arranged in a row, and the working hand 28k has a plurality of triangular projections arranged in two rows. The attachment parts of these working hands to the attachment seat 27 have the same common structure, and even if the same shape is attached to the tips of the pair of opening/closing arms 24 on both sides, or
and 28g, 28h and 28i, and 28j and 28k may be installed.

FIG. 4 shows a working hand 28m, which is used when performing a tire-wheel separation operation to be described later, attached to the tips of the opening/closing arms 24 on both sides.
This work hand 28m has a horizontal table half member 283 fixed to the mounting part 28l by a reinforcing member 282, and when mounted facing each other at the tips of the open/close arms on both sides, the table fronts face each other. The edge 284 has a tapered edge shape with an acute angle on the upper surface side, as shown in an enlarged cross section in FIG. 4A.

Now, the opening/closing operation of the opening/closing arm 24 is performed remotely from inside the cockpit 18, and the object to be dismantled, such as an automobile engine (not shown), is held and held from both left and right sides.
It is designed to be able to be compressed. Note that when moving the work vehicle, the tip of the opening/closing arm 24 is connected to the arm 22.
Or boom-tipped opening/closing work tool 3 described below.
0, it can be raised upward by a predetermined height.

The opening/closing work tool 30 attached to the tips of the booms 10 and 12 is configured to be able to rotate around the boom axis and change its direction. Opening/closing work tool 3
0 brings an object to be dismantled, such as an engine, between the ends of the opening/closing arm 24, and the opening/closing arm 24 tears off the unnecessary parts that hold the object, changes the orientation and position of the object, and removes the tire part of an old tire or It is used to hold down the wheel part, grip the tire wheel, etc. and deform it into a diameter-reduced shape, or pinch and break small parts.
There are four opening/closing pawls 32, 34 facing each other that are opened and closed by hydraulic operation from the holder, but this may be two, three, or any other number of opening/closing pawls.

A pair of opening/closing claws 32 in the front and rear directions in FIG.
and the pair of left and right opening/closing claws 34 are hydraulic cylinder devices 3 that can be operated simultaneously or independently.
3 and 35, which are supported by a support assembly 38 at the tip of the boom so that the direction of rotation can be variably controlled.

Next, the operation of the above embodiment will be explained.

First, when disassembling the engine, attach one of the working hands 28 shown in FIG. One of the working hands 28 shown in FIG. 3 is attached to the side mounting seat 27.

In this state, the tip of the arm 24 is opened larger than the size of the engine, and by rotating the upper vehicle structure 14 and moving the booms 10 and 12 up and down, it is placed directly under the engine (not shown) that has been taken out from the vehicle in advance. After positioning the opening/closing work tool 30, while holding the left and right opening/closing claws 34 of the opening/closing work tool 30 in an open state as shown in FIG. Grasp the engine and use the work hands 28 at both ends of the opening/closing arm 24.
During this period, the engine is brought in, the opening/closing arm 24 is closed, and the engine is lightly held between the two working hands.

Then, the booms 10, 12 and the opening/closing work tool 30
After setting the engine to an appropriate position by operating
The clamping pressure of the opening/closing arm 24 is increased to firmly clamp and hold the engine by the working hands 28 on both sides, and the carburetor, pump, compressor, etc. attached to the engine are removed by the working tool 30.
Tear off and remove parts such as the dynamo.

It should be noted that tearing off the attached parts of the object to be dismantled, such as an engine, can be carried out by holding the protruding parts at both ends of the object to be dismantled with the work hands 28a to 28e. If it does not have a protruding shape, it may be held by the work hand 28p or 28q as shown in Fig. 2F or 2G, or it may be held by the vertical plate-like projection or The end surface of the opening/closing arm itself is used to form a screen against the object to be dismantled, and while the screen restricts the forward movement of the object, the opening/closing work tool 30 is used to tear off the attached parts, etc. Good too. In some cases, it is of course possible to tear the object to be dismantled by pressing it from above with the opening/closing arm 24 itself.

Thereafter, the engine is moved between the work hands 28 on the base side of the opening/closing arm 24 by the work tool 30,
When the desired part of the engine is pinched and strongly compressed from both the left and right sides by hydraulic operation of the opening/closing arm 24, the engine is cracked at this strongly compressed part, and the engine housing is separated.

The divided engine parts are separated into aluminum and cast iron, and this work can be done using the opening/closing work tool 30. At this time, the divided engine may be pushed by the earth removal plate 20 and moved to another location.

In this way, with the device of this embodiment, only aluminum products can be selected from the disassembled engine parts and put into the melting furnace, which allows them to be thermally efficiently melted at a temperature close to the melting point of aluminum (660°C). After finally pouring it into a mold,
It is possible to mold it into an ingot and collect it.

Next, FIGS. 1 and 4 show the case where tire wheels are separated according to the above embodiment, and FIGS. 5A to 5D and 6A to 6 show the work procedure.
This will be explained using diagram C.

First, as shown in FIG. 4, the working hands 28m each having a horizontal table half member 283 are attached to the mounting seats 27 on the tip side of both opening/closing arms 24, and the work hands 28m are separated according to the dimensions of the tire wheels to be separated. The opening angle of the opening/closing arm 24 is determined, and a gap (hole G, FIG. 4) slightly larger than the outer diameter of the wheel is formed between both table half members 283. Next, by rotating the upper vehicle structure 14 and moving the booms 10 and 12 up and down, the opening/closing work tool 30 is positioned directly above the pile of old tires, and then the four claws 32 of the work tool 30 are positioned directly above the pile of old tires. , 34 are used to grab one old tire from its periphery and carry it onto the tire support surface S formed by both table half members 283 of the working hand 28m attached to the tip of the opening/closing arm.

Then, the booms 10, 12 and the opening/closing work tool 30
As shown in FIG. 5A, the old tires are lined up directly above the hole G and placed flat. In addition, 5th A~
In Figure 5D, the old tire is shown as a drop center type disc wheel h and a tire t attached to it.

Next, each claw part 32, 34 of the opening/closing work tool 30 is opened once, the position is changed, each claw part 32, 34 is closed, and the wheel h of the tire t on the support surface S is closed.
As shown in FIG. 5B, the wheel h is pressed from above from the drum open end side of the wheel h, and the disk side rim portion on the lower surface side thereof is held in a state in which it enters the hole G. Open/close arm 2 in this state.
4 is hydraulically driven in the direction of closing, the tapered edge 284 of the leading edge of the table facing the hole G is inserted into the gap between the disk side rim of the wheel h and the tire bead, as shown in Fig. 2C. Then, the wheel h is moored to the support surface S on the hole G by the elastic action of the tire t. After this, each opening/closing claw part 32, 34 is opened and the position is changed, and the rim part of the drum opening/closing end side of the wheel h is grabbed from the outside with each claw part.
As it is, the opening/closing claws 32, 34 are strongly closed by hydraulic pressure. As a result, the drum open end side of the wheel h is pushed inward at four points around the periphery as shown in Figure 5D, and the rim portion of the drum open end side of the wheel h has a reduced diameter as shown in the right side of Figure 6A. transformed into. From this state, either lower the claws 32 and 34 with them closed and push the wheel h from above, or hold the tire t from the outside with the opening and closing claws 32 and 34 and pull it again as shown in FIG. 5A. By raising the tire, the wheel h separates from the tire t, and only the wheel h falls down from the hole G. This tire t is carried to a predetermined location while being gripped by the opening/closing work tool 30. Further, the dropped wheel h may be later picked up by the opening/closing work tool 30 and carried out to a predetermined accumulation location.

Note that the operation using the tapered edge 284 described above is particularly effective when the tire and wheel are firmly attached and difficult to separate, but in other cases, the opening/closing arm 24 is not closed and the opening/closing claw portion 32 is simply closed. , 34 may be used to press the rim portion of the wheel h on the open side of the drum inward.

Further, the shape of the tapered edge 284 is not limited to the triangular concave shape shown in the figure, but may include a half-moon concave shape, a serrated blade shape, etc.
You can choose from a variety of options.

Further, in the above-described embodiment, each of the claws 32 and 34 of the opening/closing work tool 30 has four parts, but in the case of a three-part structure, the diameter-reduced deformation described above would be as shown in FIG. 6B. In the case of a two-piece configuration, it is sufficient to deform it once as shown in FIG. 6C, then rotate the pawl and wheel as a whole by 90 degrees and deform it again. Of course, modifications such as using other numbers and shapes of claws are also possible.

Incidentally, in the above-described embodiment, a configuration in which a plurality of pairs of mounting seats 27 were provided on the opening/closing arm 24 was shown, but instead of this configuration, a configuration shown in FIG. 7 or FIG. 8 may be adopted.

In the example shown in FIG. 7, both opening/closing arms 24 are provided with a sliding mechanism 40 and a sliding part 41 that is slidable in the direction of the arrow along this sliding mechanism 40, and a pair of attachments are attached to this sliding part 41. A seat 27 is provided. In this case, the sliding part 41 can be fixed to any position of the sliding mechanism 40 with, for example, a bolt.

On the other hand, in the example shown in FIG.
4 is provided with a hydraulically operated telescoping mechanism 42 to make it telescopic, and a pair of mounting seats 27 are provided at the tip of the telescopic opening/closing arm 24.

In the examples shown in FIGS. 7 and 8, the sliding mechanism 40 and the sliding part 4 are
1 or the position of the mounting seat 27 is changed by the telescopic mechanism 42, and the working hand 28 is also replaced with a desired one. Thereby, the same effects as those of the above-mentioned embodiments can be achieved.

[Effects of the Invention] As explained above, the dismantling apparatus according to the present invention has a hydraulically operated opening/closing arm that can replaceably fix various work hands to the front part of a swing work vehicle that has an opening/closing work tool at the tip of the boom. We are prepared. Moreover, by making it possible to attach a plurality of pairs of work hands at the same time or to attach one pair movably, it is possible to adjust the pressing force when closing the opening/closing arm depending on the attachment position of the work hands. Therefore, it is possible to efficiently disassemble an automobile engine or the like in which dissimilar metal parts coexist, and to easily separate and recover specific metals, and the safety and efficiency of the work are significantly improved.

In addition, it can handle not only engine disassembly but also tire and wheel separation work, in which case it involves grabbing the old tire, placing it in the working position, separating the tire and wheel, and then transporting the separated tire and wheel. This work can be done remotely using a hydraulically operated opening/closing work tool, which not only allows the work to be done safely and efficiently without directly touching dirty old tires, but also because it does not apply large amounts of force to the tires. Since it does not cause deformation, the tires will not be damaged.
At the same time, it is also possible to effectively utilize the recycled tires as a resource.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the configuration of a preferred embodiment of the present invention, Fig. 1A is a partial perspective view showing one operating state of the opening/closing work tool, and Figs. 2A to 2G are various examples of the clamping work hand. FIG. 3 is a perspective view showing various examples of the crushing work hand, and FIG.
4A is a partially enlarged cross-sectional view showing a tarper edge, and FIGS. 5A to 5D are cross-sectional explanatory views illustrating the procedure of tire-wheel separation work according to the present invention.
6A to 6C are explanatory views showing how the wheel is deformed by the opening/closing work tool, and FIGS. 7 and 8 are perspective views showing the structure of other embodiments of the present invention. (Explanation of symbols of main parts), 10, 12...Boom (first and second arms), 14...Upper body structure, 18...Cockpit, 20...Earth removal plate with bracket, 24...Opening/closing Arm, 26... Pivot shaft,
27...Hand mounting seat, 28a-k,m...Working hand, 283...Horizontal table half member, 30...
... Opening/closing work tool, 32, 34... Opening/closing claw part, 40
. . . sliding mechanism, 41 . . . sliding portion, 42 .

Claims (1)

[Scope of Claims] 1. A pair of opening/closing arms whose tips can be opened and closed in a horizontal direction are attached to the body of a self-propelled work vehicle that is equipped with a boom having an opening/closing work tool at its tip so that it can rotate and lie down. The arm can be pressurized to open and close by hydraulic operation, and the pair of opening and closing arms are provided with a plurality of pairs of hand mounting seats that face each other between the pair of opening and closing arms, and each of the mounting seats has the disassembly and disassembly mechanism. A dismantling device characterized in that a work hand that clamps an object can be fixed in a replaceable manner. 2. The disassembling apparatus according to claim 1, wherein a pair of hand mounting seats are provided in place of the plurality of pairs of hand mounting seats so as to be slidable along the opening/closing arm. 3. The dismantling apparatus according to claim 1, wherein a pair of hand mounting seats are provided at the tip of the opening/closing arm in place of the plurality of pairs of hand mounting seats, and the opening/closing arm is made telescopic. Demolition equipment. 4. Claims 1 and 2, wherein the opening/closing arm is provided with one or more pairs of recesses facing each other for holding the object to be dismantled therebetween, and the hand mounting seat is formed on the periphery of the recess. 3. The dismantling device according to any one of 3. 5. Claims 1 and 2, wherein each of the pair or plural pairs of working hands has a concave shape facing each other on an inner side surface of the opening/closing arm.
3. The dismantling device according to any one of 3. 6. Claims 1 and 2, wherein each of the pair or plural pairs of working hands has a convex shape facing each other on an inner side surface of the opening/closing arm.
3. The dismantling device according to any one of 3. 7. Claims 1 and 2, wherein the pair or plural pairs of work hands have male and female concave and convex shapes facing each other on the inner side surface of the opening/closing arm.
3. The dismantling device according to any one of 3. 8 Of the pair or pairs of work hands,
At least the pair of work hands on the distal end side of the opening/closing arms each have a horizontal table half member that forms a support surface having a gap approximately at the center between the inner surfaces of the arms when the pair of opening/closing arms are brought close to each other. The dismantling apparatus according to any one of claims 1, 2 and 3, characterized in that: 9. The gap in the center of the support surface has a width larger than the outer diameter of the wheel fitted to the tire when the tire is placed on the support surface, and the front upper edges of the horizontal table halves facing each other The disassembly according to claim 8, characterized in that the opening/closing arm has an edge shape that can cut into the disc side rim of the tire wheel placed on the support surface almost horizontally when the opening/closing arm is driven in the closing direction. Device.