JP2004301439A - Land mine disposal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a land mine disposal device capable of preventing components including an expanding and contracting mechanism such as a cylinder, from being damaged by the explosion of land mine, in a case when the land mine buried in the ground is disposed by being blown up by slamming a chain hammer against the ground surface. <P>SOLUTION: A blast prevention plate 32 positioned at a front part of a lake 9 is rotatably mounted on the lake 9 detachably mounted on a tip of a derrickable and deflectable arm 2 of a heavy machine vehicle used in a shovel machine such as a back hoe, a chain type land mine blow-up device 36 supporting a drum 35 provided with the chain hammer 34 by an arm 33 projecting forward from the blast prevention plate 32, is integrated with the blast prevention plate 32, and a shock absorber 41 is placed on a rear side of the blast prevention plate 32 and the lake 9. <P>COPYRIGHT: (C)2005,JPO&amp;NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a mine disposal machine for forcibly blasting and treating mine buried underground.
[0002]
[Prior art]
At present, large-scale conflicts often occur in various parts of the earth, and land mines are used as one of the means of combat. In order to ensure safe traffic after a ceasefire, it is necessary to dispose of land mines buried underground. Conventionally, when disposing of mines buried underground, workers generally support the mine detector, manually operate the mine detector while walking to check the position of the mine, and then blow up the mine. They are dug up and collected.
[0003]
On the other hand, the inventor can first process or detect it safely and over a wide area, and can extend a long reach to a steep slope or a narrow place where the machine cannot enter, and work extensively. In addition, it is possible to reliably excavate and break down landmines for human beings filled with earth and sand, and to cut and destroy them.In addition, a wide range of work is possible by cutting and crushing grass, bushes, landmines, shrubs, stumps, tall trees, etc. Since the amount is large, even after the pulverization process, the following publication is filed and patented as a material that can be efficiently used for sorting debris such as land mines and shrubs, or for use in operations such as leveling and digging.
[0004]
[Patent Document 1]
JP-A-11-183095 (Patent No. 3177737)
[Patent Document 2]
JP 2000-130996 A (Patent No. 3016018)
[Patent Document 3]
JP 2001-74398 A (Patent No. 3096847)
[0005]
As shown in FIG. 13, as shown in FIG. 13, instead of a bucket, a cutter bit 11 is implanted at the tip of an undulating and refractible arm 2 of a heavy equipment vehicle 1 used in a shovel machine such as a backhoe. In addition, a rotary cutter 12 capable of cutting to a depth of about 30 cm or more and capable of discharging soil is mounted on the opposite side to the traveling direction.
[0006]
Equipped with a rotary cutter at the tip of the arm 2, turning while rotating the cutter, operating the boom arm, cutting and crushing bushes and grass growing on the wasteland, and at the same time anti-personnel buried under the ground surface Even land mines can be crushed at once. In particular, a rotary cutter that rotates at high speed has a cutter bit planted on the peripheral surface of the rotating drum and can be cut to a depth of about 30 cm. Therefore, even if an antipersonnel mine is buried in the soil, it is dug out and the cutter bit is When touched, the struck anti-personnel mine is deformed, destroying the internal explosive series and cutting the electric circuit.
[0007]
At the next tooth (cutter bit), the antipersonnel mine gets caught in the rotary cutter, the case and the lid separate, and the explosives are scattered.
[0008]
Therefore, the antipersonnel mine of the electric fuze does not explode at all, while the antipersonnel mine of the mechanical fuze only explodes only the fuze and does not explode the main body of the antipersonnel mine. Treated land mines are separated into cases, lids, and electric circuit boards, and are discharged to the ground.They are discharged on the opposite side to the direction of travel, so that mud does not cover and bury the anti-personnel land mines. .
[0009]
[Problems to be solved by the invention]
The above-mentioned land mine disposal device exclusively performs land mine processing of anti-personnel land mine. For relatively large land mine such as anti-tank land mine, crushing processing with a rotary cutter was not appropriate. Therefore, use anti-tank mines using skeleton buckets, carefully dig out the anti-tank mines, unexploded ordnance, etc. in the soil at the indicated location so as not to explode, and gradually dirt the soil in the skeleton bucket behind the machine body. Sowing, separating and exposing anti-tank mines and unexploded ordnance. After the accident, they were transported to the explosion point and processed by human power.
[0010]
Relatively large land mines such as anti-tank land mines As a process for relatively large land mines such as anti-tank land mines, a chain is provided on a rotating drum, the chain is hit against the ground by rotation, and land mines buried in the ground are exploded. Methods have been proposed in JP-A-9-311000, JP-A-10-253298 and JP-A-11-316100.
[0011]
For example, in Japanese Unexamined Patent Publication No. 9-311000, as shown in FIG. 13, these are mounted on a traveling body 15 of a crawler traveling body constructed in the same manner as, for example, a bulldozer, by using a large number of chains as working machines for processing land mines. 1 shows a chain-type land mine blasting device 17 provided with a rocket 16 and a rake recovery device 18 as mine recovery means for collecting land mines that could not be blasted by the chain-type land mine blowing device 17.
[0012]
In the rake recovery device 18, the rake body 19 has a receiving plate 20 having a plurality of rake blades 21 attached at equal intervals in the width direction at a lower end, so that land mines can be reliably recovered. A grid-like (or net-like) window 22 is provided on the upper part of the receiving plate 20 so that the tip of the rake collection device 18 can be visually recognized from the cab.
[0013]
The lower part of the rake body 19 has its base end pivotally connected to the distal ends of a pair of swing arms 24 pivotally connected at its base end to the track frame 23 of the traveling body 15, and the upper part of the back of the rake body 19 and each swinging arm. An elevating cylinder 25 is axially mounted between the moving arm 24 and the intermediate portion. By operating the elevating cylinder 25, the rake main body 19 can be raised about the tip end of the swing arm 24.
[0014]
On the back surface of the rake body 19, a rod of a rake cylinder 27 for pivoting the rake body 19 in a vertical direction is pivotally mounted, and the upper end of a triangular mounting bracket 28 provided on the traveling body 15 on the cylinder head side. The rake body 19 can be moved up and down by extending and contracting the rod. The rake body 19 can be tilted in the left-right direction of the traveling body 15 like a normal bulldozer, so that a so-called tilt operation can be performed.
[0015]
The mine blasting device 17 is attached to a rake body 19. That is, the base ends of the support arms 29 are swingably mounted on both sides of the rake body 19, and the rotation shaft 30 to which the chain 16 is mounted is rotatably provided at the distal ends of these support arms 29. Further, a swing cylinder 31 is pivotally mounted between a position above a pivot point of the support arm 29 of the rake body 19 and an upper portion of each support arm 29, and the rotary shaft 30 can be moved up and down via the support arm 29. .
[0016]
A plurality of chains 16 fixed at appropriate intervals in the axial direction and the circumferential direction of the rotating shaft 30 are fixed to the peripheral surface of the rotating shaft 30. A hydraulic motor connected to one end of a rotary shaft 30 is attached to one end of the support arm 29, and the chain 16 is swung through the rotary shaft 30 by driving the hydraulic motor to rotate. You can give a shock by hitting the ground.
[0017]
In this way, a plurality of chains are rotated to strike and blast the ground, so there is no need for the operator to directly process on the ground, thereby avoiding the danger of the operator and promptly processing. Becomes possible. Since the mine burial position is so deep that it cannot be blasted or unexploded mine can be dug up and collected by the rake collection device, the mine can be processed safely and reliably.
[0018]
However, since this disposal method blows up the mine, the explosive force damages the mine disposal device and the tracked vehicle and hinders the mine clearance operation. In particular, the portion of the chain type land mine blasting device 17 receives a large impact. Further, the rake body 19 can also serve as a blast prevention plate as a concave curved plate, but if the rake body 19 itself receives a strong blast, there is a possibility that various cylinders may be damaged.
[0019]
An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to strike and crush a land mine buried in the ground by hitting a chain hammer on the ground. It is an object of the present invention to provide a mine disposal device that is not likely to be damaged by an explosion.
[0020]
[Means for Solving the Problems]
In order to achieve the above object, the present invention firstly employs a blast prevention plate located in front of a rake detachably attached to the tip of an undulating and bendingable arm of a heavy equipment vehicle used in a shovel machine such as a backhoe. A chain type land mine blasting device that is rotatably provided and supports a drum provided with a chain hammer with an arm protruding forward from the blast prevention plate is integrally provided with the blast prevention plate, on the back side of the blast prevention plate and on the rake. The gist is that a shock absorber is installed.
[0021]
Second, as for the shock absorber, a cylinder having a built-in coil spring as a cylinder with a shock absorber is connected to a hydraulic or air cylinder for controlling the position of a chain hammer installed on the back side of the blast prevention plate and the rake. In addition, a blast vent window is provided on the top of the blast prevention plate, and a chain blind is provided in this window. Fourth, the weight at the end of the chain is attached to the end of the chain with a shackle, and the shape of the striking surface Is a sled-shaped curvature surface.
[0022]
According to the first aspect of the present invention, the blast prevention plate and the chain-type mine blasting device are integrated, and this is detachably attached to the tip of the undulating and refractible arm of a heavy equipment vehicle used in a shovel machine such as a backhoe. The mine has a chain-type mine blasting device that uses a drum to spin the chain against the ground to blast the mine buried underground. The rake works to excavate mines and recover unexploded mines in advance.
[0023]
At that time, the shock absorber absorbs the impact of the blast due to the explosion of the mine, and the blast prevention plate and the chain type mine blasting device can avoid the impact, preventing deformation and damage of these frames, arms and cylinders. be able to. In addition, the blast prevention plate and the chain-type mine blasting device are integrated, and the shock absorber can absorb any of the impacts received. However, the blast prevention plate receives the impact all at once, and the blast prevention plate receives the impact. Can be absorbed.
[0024]
According to the present invention, in addition to the above-described operation, the shock absorber can be reliably protected by being combined with a hydraulic or pneumatic cylinder for controlling the position of the chain hammer, and can save space. Can be provided.
[0025]
According to the third aspect of the present invention, by providing a window hole for blast removal on the upper portion of the blast prevention plate, an excessive impact caused by the blast prevention plate receiving a blast in a wide area can be used to reduce blast from the window hole. It can be softened by missing, and by providing a chain blind in this window hole, it is possible to prevent fragments (debris) from coming out of the window hole. Moreover, chain blinds do not provide an unreasonable stop against blasts.
[0026]
According to the fourth aspect of the present invention, the weight at the tip of the chain is attached to the tip of the chain with a shackle, and the hitting surface is formed into a sled-like curvature so that a wider hitting area can be ensured. As a result, efficient hits can be made. In addition, the weight itself has less pain.
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing one embodiment of a land mine disposal device of the present invention, and similarly to FIG. 13 showing the conventional example, the land mine disposal device of the present invention is also a shovel such as a backhoe which is most frequently used in the current market. A heavy equipment vehicle (base machine) 1 to be used is used. The heavy equipment vehicle 1 is provided with an up-and-down and bendable arm 2 and an earth discharging plate 10. Reference numeral 3 denotes a driver's seat (cabin), and reference numeral 4 denotes a crawler belt for traveling. In addition to such a crawler-type crawler belt, a wheel type having wheels instead of the crawler belt may be used. The crawler belt 4 exerts its power on steep slopes and the like, but in the case of the wheel type, the front (rear) advancement on flat ground increases. The discharge plate 10 is an explosion-proof blade and has a blade cylinder 10a.
[0028]
In addition to the crawler type, a wheel type having wheels instead of the crawler belt may be used. The crawler belt 4 exerts its power on steep slopes and the like, but in the case of the wheel type, the front (rear) advancement on flat ground increases.
[0029]
The up-and-down and bendable arm 2 is composed of a boom 2a, an arm 2b, a boom cylinder 2c, an arm cylinder 2d, and a bucket cylinder 2e. The tip of the arm 2 is a screw handle type that makes the holding interval of the pin 6 on the attachment side variable. An attachment attaching / detaching device 5 incorporating the slide mechanism 5b was provided. The attachment attaching / detaching device 5 can be rearranged without pulling out the pin 6 of the attachment, and is called a quick hitch. The exchange operation will be described in detail with reference to FIGS.
[0030]
The slide mechanism 5b includes a movable claw 5c, a lock bar 5d, and a set screw 5e. For attachment / detachment, with the hydraulic hose on the attachment side detached, the movable claw 5c on the other side fitted to the pin is shortened on the attachment attaching / detaching device 5 side, and after setting it on the other pin, turn the set screw 5e with a tool. And lock it with the lock bar 5d.
[0031]
In the figure, reference numeral 9 denotes a rake as an attachment. The rake 9 has a spade-like shape having a plow blade 9b provided with a rake blade 9a at an end thereof in a width direction as is well known, and is shown in FIG. As described above, the gap between the lower portions of the plow blades 9b is formed as a grid 9c formed by horizontal rails. The upper surface is a flat surface, and the pins 6 supported by a bracket are provided in parallel with a space therebetween.
[0032]
At the front position of the rake 9, a blast prevention plate 32, which is a steel wall plate, is rotatably mounted on a shaft, and two arms 33 are arranged in front of the blast prevention plate 32 in parallel with the blast prevention plate 32. To protrude. The blast prevention plate 32 is supported by a support arm 37 projecting forward from the rake 9 near its lower side, and the arm 33 is arranged in a straight line on the support arm 37.
[0033]
Further, a rectangular window 32a for expelling a blast is provided at the upper part of the blast prevention plate 32 (two on the left and right in the figure), and chains suspended only with the upper end fixed to the window 32a are arranged at appropriate intervals. A chain blind 38 is provided.
[0034]
The arm 33 supports a drum 35 provided with a chain hammer 34 at a tip thereof to constitute a chain type mine blasting device 36. In the figure, reference numeral 39 denotes a motor for rotating the drum 35.
[0035]
As shown in FIG. 6, the chain hammer 34 has a weight 34b provided at the tip of a chain 34a via a shackle 34c. The weight 34b has a striking surface 40 as shown in FIGS. By providing a warped surface, a wide hitting area can be ensured, efficient hitting can be performed as a flare hammer, and the weight of the weight 34b itself can be reduced.
[0036]
Further, as shown in FIG. 9, a shock absorber 41 of a cylinder 41b having a coil spring 41a built therein is installed on the back side of the blast prevention plate 32 and the rake 9. In the figure, reference numeral 41c denotes a rod biased by a coil spring 41a.
[0037]
Although the shock absorber 41 may be provided alone, in the present embodiment, a hydraulic or air cylinder 42 for controlling the position of a chain hammer that is installed on the back side of the blast prevention plate 32 and the rake 9 as a cylinder with a shock absorber is provided. The two were united by flange connection or the like, and both were integrated.
[0038]
FIG. 15 shows another example of the shock absorber 41, in which a coil spring 41a is disposed in front and back of a cylinder 41b with a cylinder piston 41d interposed therebetween.
[0039]
Next, the usage will be described. When the mine disposal device (system) of the present invention is used in a place where a mine or the like is expected to be based on the result of the preliminary investigation of various information, it is necessary to prepare work in advance for the efficiency of the whole work.
[0040]
First, the work position is confirmed. Pile the reference pile at the starting point of the work, and plot the position of the pile from a clear survey point. This is important for work records, reports and mine clearance maps. Next, a work section is set. In order to minimize the moving distance of the machine main body and increase the working efficiency, the working section is planned in consideration of the topography and the vegetation, taking into account the appropriate replacement of the rotary cutter and the rake 9 as attachments.
[0041]
Although the illustration of the rotary cutter is omitted, Japanese Patent Application Laid-Open No. 11-183095 (Japanese Patent No. 3177737) of Patent Document 1, Japanese Patent Application Laid-Open No. 2000-130996 (Japanese Patent No. 3016018) of Patent Document 2, and Patent Document 3 Japanese Patent Application Laid-Open No. 2001-74398 (Japanese Patent No. 3096847).
[0042]
The heavy equipment vehicle 1 moves forward and backward with the crawler belt 4 and wheels, and turns. An operator rides on the driver's seat 3 and drives the same, but operates the rotary cutter and the rake 9 with the undulating and refracting arm 2, but the trees, shrubs, reeds and grass covering the surface of the ground detect and process landmines. Can be easily handled by moving the rotary cutter while turning it from the side.
[0043]
However, if it is expected that there will be unexploded ordnance hiding in the vegetation and it is difficult to view before work, safety will be ensured at the work stage. The first step is to cut vegetation at a height of 30 to 40 cm above the ground so as not to touch unexploded ordnance. In the second stage, the vegetation is cut to 10 cm or less so that subsequent detection work can be easily performed.
[0044]
The anti-personnel landmines will be disposed of by clearing all areas with a rotary cutter, focusing on the positions of anti-personnel landmines revealed by the detection work. In the processing operation, the rotary cutter is turned while bringing the guide bottom surface of the rotary cutter into contact with the ground surface so that the cutting edge of the cutter bit of the rotary cutter reaches 30 cm below the ground. Depending on the hardness of the land and the unevenness of the ground, change the turning speed or secure enough depth by two-step work.
[0045]
Anti-personnel mines are destroyed without exploding due to the high-speed rotation of the rotary cutter, and debris is released to the ground. Depending on the type, only the fuse may burst, but there is no effect on the device.
[0046]
The anti-tank mines and unexploded ordnance are exchanged with the rotary cutter and the rake 9, and the chain-type mine blasting device 36 blasts the mine buried in the ground by hitting the chain hammer 34 to the ground by the rotation of the drum 35. The rake 9 can excavate mines and the like in advance, collect unexploded mines, and excavate mines that cannot be removed by the chain hammer 34 to a depth of 50 cm.
[0047]
At the time of the blast, the shock absorber 41 absorbs the impact of the blast due to the explosion of the mine, so that the blast prevention plate 32 and the chain-type mine blast device 36 can avoid the impact.
[0048]
When the double coil spring type shock absorber 41 shown in FIG. 15 is used, the blast of a mine is generated, and the impact of the chain hammer 34 being pushed upward is absorbed by the coil spring 41a (the right side in FIG. 15) opposite to the rod 41c. Then, the impact when the chain hammer 34 lands on the ground is buffered by the coil spring 41a on the opposite side (the left side in FIG. 15).
[0049]
The blast protection plate 32 is provided with a window hole 32a at an upper portion for observing the operation status of the chain type mine blasting device 36 from the driver's seat 3 and for letting out the blast of the mine blasted by the impact of the chain hammer 34. The chain blind 38 provided in the window 32a prevents fragments caused by the blast from passing through the window 32a and hitting the heavy equipment vehicle 1.
[0050]
The reason why the chain was not fixed to the lower side of the window hole 32a but was interdigitated was to stop fragments while absorbing the impact of the blast. This is because they may be torn off.
[0051]
【The invention's effect】
As described above, when the mine disposal device of the present invention blasts and processes a mine buried in the ground by hitting the chain hammer to the ground, each component including the telescopic mechanism such as a cylinder is used for the mine. It is not likely to be damaged by the explosion.
[Brief description of the drawings]
FIG. 1 is a perspective view showing one embodiment of a land mine disposal device of the present invention.
FIG. 2 is a rear perspective view showing a main part of one embodiment of the land mine disposal device of the present invention.
FIG. 3 is a side view showing a main part of one embodiment of the land mine disposal device of the present invention.
FIG. 4 is a combination view of the front and back of the blast prevention plate of the land mine disposal device of the present invention.
FIG. 5 is a side view of a heavy equipment vehicle portion of the land mine disposal device of the present invention.
FIG. 6 is a perspective view of a chain type land mine blasting device using the chain hammer of the present invention.
FIG. 7 is a perspective view showing another example of the chain hammer of the present invention.
FIG. 8 is a perspective view of a split barrel portion showing another example of the chain hammer of the present invention.
FIG. 9 is a perspective view of the shock absorber according to the present invention in an extended state and a contracted state when used alone.
FIG. 10 is a perspective view of a cylinder with a shock absorber according to the present invention in an extended state and a contracted state.
FIG. 11 is an explanatory diagram of an extended state of the attachment attaching / detaching device.
FIG. 12 is an explanatory diagram of a contracted state of the attachment attaching / detaching device.
FIG. 13 is a side view showing a conventional example.
FIG. 14 is a side view showing another conventional example.
FIG. 15 is a longitudinal side view showing another example of the shock absorber used in the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Heavy machine vehicle 2 ... Undulating and bendingable arm 2a ... Boom 2b ... Arm 2c ... Boom cylinder 2d ... Arm cylinder 2e ... Bucket cylinder 3 ... Driver seat 4 ... Crawler belt 5 ... Attachment attaching / detaching device 5a ... Link mechanism 5b ... Slide mechanism 5c ... movable claw 5d ... lock bar 5e ... set screw 6 ... pin 9 ... rake 9a ... rake blade 9b ... plow blade 9c ... grid 10 ... earth removal plate 10a ... blade cylinder 11 ... cutter bit 12 ... rotary cutter 13 ... Rotating drum 15 ... Running body 16 ... Chain 17 ... Chain type mine blasting device 18 ... Rake recovery device 19 ... Rake body 20 ... Rake plate 21 ... Rake blade 22 ... Window 23 ... Track frame 24 ... Swing arm 25 ... Elevating cylinder 27 rake cylinder 28 mounting bracket 29 support arm 30 rotating shaft 31 Swing cylinder 32 ... Blast prevention plate 32a ... Window hole 33 ... Arm 34 ... Chain hammer 34a ... Chain 34b ... Weight 34c ... Shackle 35 ... Drum 36 ... Chain type mine blasting device 37 ... Support arm 38 ... Chain blind 39 ... Motor 40 ... Striking surface 41 ... Shock absorber 41a ... Coil spring 41b ... Cylinder 41c ... Rod 41d ... Cylinder piston 42 ... Cylinder

Claims (4)

At the tip of the undulating and refracting arm of a heavy equipment vehicle used in a shovel machine such as a backhoe, a rake that is detachably attached is rotatably provided with a blast prevention plate located in front of the rake, and protrudes forward from the blast prevention plate. A mine disposal device characterized in that a chain type mine blasting device that supports a drum provided with a chain hammer by an arm is integrally provided with the blast prevention plate, and a shock absorber is installed on the back side of the blast prevention plate and the rake. 2. The mine disposal device according to claim 1, wherein the shock absorber is a cylinder with a built-in coil spring as a cylinder with a shock absorber, and is connected to a hydraulic or air cylinder for chain hammer position control installed on the back side of the blast prevention plate and the rake. The mine disposal device according to claim 1 or 2, wherein a window hole for venting the blast is provided above the blast prevention plate, and a chain blind is provided in the window hole. The mine disposal device according to any one of claims 1 to 3, wherein the weight at the tip of the chain is attached to the tip of the chain by a shackle, and the striking surface has a sled-like curvature.

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