JP3737805B2 - Rotary cutter type landmine treatment equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotary cutter type landmine treatment apparatus capable of efficiently treating landmines.
[0002]
[Prior art]
Conventionally, the handling of mines for personal use among mines has been carried out manually. Specifically, the detection is done one by one using a mine detector, which is similar to a metal detector, usually fixed to a long rod. If you can detect it, water it, soften the soil and check the status of the mine. After removing the soil with a brush or the like to make the mine visible, the gunpowder is set up to explode, and in this way the conventional mine treatment depends on the experience and kang of specialists one by one. It goes without saying that you have to spend a lot of time and effort.
[0003]
Therefore, by using a bulldozer type or excavator type for landmine sweeping by using an endless track vehicle, it is possible to efficiently sweep away without being exposed to the dangers associated with landmine sweeping. Various proposals have been made.
[0004]
On the other hand, the inventor can process or detect a wide area in a safe manner, and can extend a long reach to a steep slope or a narrow place where machines cannot enter. It is possible to excavate and cut and destroy even land mines for people with earth and sand buried, and in addition to this, a wide range of work by cutting and crushing grass, bushes, land mines, shrubs, stubs, high cocoons, etc. The amount of the mine and the shredded wreckage, etc., which are large in volume, can be used to efficiently sort out debris such as landmines and shrubs, or can be used for operations such as leveling and digging.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-183095 (Japanese Patent No. 3177737)
[Patent Document 2]
JP 2000-130996 A (Patent No. 3016018)
[Patent Document 3]
JP 2001-74398 A (Patent No. 3096847)
[0006]
As shown in FIGS. 3 and 4, the cutter bit 11 is attached to the tip of the undulating and bendable arm 2 of the heavy machinery vehicle 1 used in the excavator machine such as a backhoe, instead of the bucket. , And a rotary cutter 9 that can be cut to a depth of about 30 cm or more and can be discharged to the opposite side of the traveling direction is attached.
[0007]
The arm 2 is equipped with a rotary cutter at the tip, swiveling while rotating the cutter, operating the boom arm, cutting and crushing bushes, grass, etc. growing on wasteland, and at the same time, interpersonal buried under the ground surface Mines can be crushed at once. In particular, rotary cutters that rotate at high speeds have a cutter bit planted around the rotating drum and can be cut to a depth of about 30 cm, so even if anti-personnel mines are buried in the soil, they will be excavated and the cutter bits will be mined. When touched, the hit antipersonnel mines are deformed, the internal explosive series is blown up and destroyed, and the electrical circuit is disconnected.
[0008]
Blasted landmines are divided into cases, lids, and electric circuit boards and discharged to the ground, and are discharged to the opposite side of the direction of travel, so mud may be covered and buried in antipersonnel landmines. Absent.
[0009]
By the way, the rotary cutter 9 in which the cutter bits 11 are planted on the peripheral surface of the rotating drum 10 at appropriate intervals (for example, when the drum diameter is φ508, the entire circumference is equally divided by 8 × 30.25) is directly connected to the hydraulic motor. As shown, the drive motor M2 is coupled to the rotating shaft of the rotating drum 10 on the left and right.
[0010]
About 2/3 of the rotary cutter 9 is housed in the hood 24, and about 1/3 of the lower side protrudes. As an example, the outer diameter of the excavation is φ900 mm to φ700 mm, the rotation speed is 500 to 700 rpm, and the torque MAX is 250 kg. M, cutting speed (tip) MAX 100 km / h to MAX 150 km / h, blade tip excavation force 300 kg to 500 kg, rated pressure 350 kg / cm ² , rated flow 165 to 300 liters / min, rated output 75 to 100 kW, mass (cutter 1400 kg) It should be cut to a depth of about 30 cm or more at ˜2000 kg.
[0011]
Further, when the rotary cutter 9 is oriented so that the rotation axis is parallel to the heavy machinery vehicle 1, the rotary cutter 9 can rotate to the opposite side with respect to the traveling direction (advance) of the heavy machinery vehicle 1 and can only be discharged to the rear. .
[0012]
Further, the rotary cutter 9 is provided with a movable comb blade 26b by a cylinder 26c with respect to the fixed comb blade 26a, and a rake grapple 26 that can be sandwiched and protruded laterally.
[0013]
[Problems to be solved by the invention]
In the rotary cutter 9, the rotary drum 10 is supported by a bearing on the rotary hood 24 side through a bearing or the like, and this bearing is a precision one, and a bearing or the like which is a precision instrument is damaged at the time of explosion processing of anti-personnel mines. Alternatively, the rotation is blocked, and as a result, the rotary cutter 9 itself may not be able to be rotated.
[0014]
The object of the present invention is to eliminate the inconvenience of the conventional example, and even if the rotary cutter is subjected to the impact of the mine blasting process, it absorbs it and damages the rotary drive parts, especially the precision parts such as bearings. The purpose of this invention is to provide a rotary cutter type landmine disposal device that is designed to prevent any damage.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a rotary cutter type landmine treatment apparatus in which a rotary cutter is detachably attached to the tip of a undulating and bendable arm of a heavy machinery vehicle used in a shovel machine such as a backhoe. The rotating drum of the rotary cutter has a double structure of an outer drum in which a cutter bit is implanted via a cutter holder welded to the peripheral surface and an inner drum connected to a motor drive shaft, between the outer drum and the inner drum. In addition, an elastic member is interposed between the two, and the locking pieces project from both sides to be engaged in the rotational direction. Second, one of the locking pieces is two in parallel, and the other The gist is that one sheet is inserted between them, and thirdly, roller bearings are arranged side by side on the bearing of the rotation drive shaft of the inner drum.
[0016]
According to the first aspect of the present invention, the anti-personnel mine is blasted with the rotary cutter attached to the tip of the arm, but even if the outer drum in which the projecting cutter bit is implanted receives an impact by blasting, This impact is absorbed by the elastic member and is not transmitted to the inner drum connected to the motor drive shaft, so that an excessive impact force is not applied to the bearing or the like by the bearing. In addition, since the outer drum and the inner drum are engaged with each other in the rotation direction via the locking piece, the rotating drum can be used as a single unit without any trouble.
[0017]
According to the second aspect of the present invention, in addition to the above action, the respective locking pieces of the outer drum and the inner drum are displaced between the inner drum and the outer drum by deformation of the elastic member. Can maintain the engagement state accordingly.
[0018]
According to the third aspect of the present invention, it is possible to improve safety by arranging roller bearings that do not need to be exchanged for a period of 5000 hr in a double arrangement.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal side view of a rotary cutter part showing an embodiment of a rotary cutter type landmine treatment apparatus of the present invention, and FIG. 2 is a longitudinal front view of the same.
[0020]
First, the entire apparatus will be described. As shown in FIGS. 3 and 4 showing the conventional example, a heavy machine vehicle (base machine) 1 used for a shovel such as a backhoe that is most frequently used in the market is used. The heavy equipment vehicle 1 is provided with an arm 2 that can be bent and bent freely. Reference numeral 3 denotes a driver's seat (cabin), and reference numeral 4 denotes a crawler belt for traveling. However, in addition to such a crawler type, a wheel type having wheels instead of the crawler belt may be used. The crawler belt 4 demonstrates its power on steep slopes, etc., but in the case of the wheel type, the forward (rear) advance on the flat ground increases.
[0021]
The undulating 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 holding interval of the pin 6 on the attachment side is variable at the tip of the link mechanism 5a. An attachment attaching / detaching device 5 incorporating a screw handle type slide mechanism 5b is provided. The attachment attaching / detaching device 5 can be reassembled without removing the attachment pin 6 and is called a quick hitch. The details of the attaching / detaching device 5 will be described with reference to FIGS.
[0022]
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 removed, the movable claw 5c on the other side aligned with the pin 6 is contracted to the attachment detaching device 5 side, and after adjusting to the other pin 6, the set screw 5e is attached to the tool. Rotate to move and lock with lock bar 5d.
[0023]
Of the window glass of the driver's seat 3, a special bulletproof glass (Rex guard) 7 is used for the windshield, which is about 200 times as safe as normal glass. Although not shown, the front of the driver's seat is protected by a special cab guard, special bulletproof glass 7 is attached to the left and right side windows of the driver's seat, and a special high-strength iron plate is used for the window frame. Protected against flying debris.
[0024]
In addition, an iron under cover is provided at the bottom of the heavy machinery vehicle body and the truck to protect the internal machinery, and a special high-strength iron plate is used beside the right hydraulic oil tank and fuel tank. In contrast, both tanks are protected.
[0025]
A rotary cutter 9 as an attachment attached to the tip of the undulating and refracting arm 2 via an attachment attaching / detaching device 5 is directly connected to a hydraulic motor, and a drive motor 12 is coupled to the rotating shaft of the rotary drum 10 in the left and right directions. About two-thirds of the space is stored, and about one-third of the lower side protrudes.
[0026]
The rotary cutter 9 is provided by welding the cutter holder 13 to the peripheral surface of the rotary drum 10 as described above, and the cutter bits 11 made of carbon steel are planted through the cutter holder 13 at appropriate intervals. In the present invention, the rotary drum 10 has a double structure of an outer drum 14 having a cutter bit 11 implanted therein and an inner drum 15 connected to a motor drive shaft 12a of a drive motor 12 provided on the left and right. A gap was secured between the inner periphery of the outer drum 14 and the outer periphery of the inner drum 15, and an elastic member 16 was interposed here.
[0027]
As the elastic member 16, hard rubber is optimal, but an elastic synthetic resin may be used instead. Further, the elastic member 16 is provided except for the portions where the following locking pieces 17 and 18 are provided.
[0028]
Further, locking pieces 17 and 18 are projected from both the outer drum 14 and the inner drum 15 and engaged with each other in the rotating direction of the rotary drum 10. In the present embodiment, there are two locking pieces 17 protruding from the outer drum 14 in parallel with a small interval, and the locking pieces 18 protruding from the inner drum 15 are inserted between the locking pieces 17 and 17. It shall be. These locking pieces 17 and 18 do not have to be provided in the entire width in the width direction of the rotary drum 10, and so-called drive in which the motor drive shaft 12 a of the drive motor 12 and the rotary drive shaft 15 a at the center of the inner drum 15 are connected. These may be provided at the left and right ends of the rotary drum 10 corresponding to the portions.
[0029]
Further, in this drive unit, the inner drum 15 is rotatably supported by a bearing 19 formed on the hood 24 side. The roller bearing 20 is arranged on the bearing 19 in a double manner.
[0030]
Further, the rotary cutter 9 is provided with a movable comb blade 26b by a cylinder 26c with respect to the fixed comb blade 26a, and a rake grapple 26 that can be sandwiched and protruded laterally.
[0031]
Next, usage will be described. The heavy machinery vehicle 1 moves forward and backward by the crawler belt 4 and the wheels, and turns. An operator rides on the driver's seat 3 and operates the rotary cutter 9 with the undulating and bendable arm 2, but when shrubs, bushes and grass covering the ground obstruct the processing operation, the rotary cutter 9 By moving while turning from the side, it can be easily processed. If it is expected that there will be unexploded shells or anti-tank landmines, use the rake grapple 26 on the side of the rotary cutter 9 to lift it up safely, remove it behind the machine body, and then transport and handle it manually. .
[0032]
When the cut vegetation is accumulated at a height of 10 cm or less on the ground or when the shrub has fallen high, the rake grapple 26 on the side of the rotary cutter 9 is used to eliminate this.
[0033]
Regarding the processing of anti-personnel mines, all areas are cleared with the rotary cutter 9 with the emphasis on the positions of anti-personnel mines clarified by detection work, and anti-personnel mines are processed.
[0034]
The processing operation is performed while the guide bottom surface of the rotary cutter 9 is in contact with the ground surface so that the cutting edge of the rotary cutter 9 reaches 30 cm underground. Depending on the hardness of the land and unevenness of the ground, the turning speed is changed and sufficient depth is secured by two-step work.
[0035]
In the rotation of the rotary cutter 9, the outer drum 14 and the inner drum 15 are engaged in the rotation direction via the locking pieces 17 and 18 in the rotating drum 10. Are driven to rotate as an integral unit.
[0036]
In addition, when the outer drum 14 receives an impact such as blasting and the elastic member 16 is deformed and the interval between the outer drum 14 and the inner drum 15 is to be displaced, the engagement between the locking pieces 17 and 18 is mutual. The engagement in the rotational direction is not released only by changing the degree, and the rotational driving of the rotary drum 10 is not hindered.
[0037]
In addition, even if the distance between the inner drum 15 and the outer drum 14 is displaced due to the deformation of the elastic member 16, the respective locking pieces 17 and 18 can firmly maintain the corresponding engagement state.
[0038]
Like the detection work, 5-10 cm overlap so that there is no unprocessed part. Antipersonnel mines are explode by the high speed rotation of the rotary cutter 9 and debris are released to the ground. Depending on the type, only the fuze can burst.
[0039]
【The invention's effect】
As described above, according to the present invention, even if the rotary cutter is subjected to the impact of the mine blasting process, it absorbs the impact and prevents the rotary drive part, especially the precision parts such as the bearings, from being damaged. It is something that can be done.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view of a rotary cutter portion showing an embodiment of a rotary cutter type landmine treatment apparatus of the present invention.
FIG. 2 is a longitudinal front view of a rotary cutter portion showing an embodiment of a rotary cutter type landmine treatment apparatus of the present invention.
FIG. 3 is a side view showing an outline of a rotary cutter type landmine disposal device.
FIG. 4 is a plan view showing an outline of a rotary cutter type landmine disposal device.
FIG. 5 is an explanatory view of an extended state of the attachment attaching / detaching device.
FIG. 6 is an explanatory diagram of a contracted state of the attachment attaching / detaching device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Heavy machine vehicle 2 ... Unfolding and bending arm 2a ... Boom 2b ... Arm 2c ... Boom cylinder 2d ... Arm cylinder 2e ... Bucket cylinder 3 ... Driver's seat 4 ... Crawler belt 5 ... Attachment attaching / detaching device 5a ... Link mechanism 5b ... Slide mechanism 5c ... Moveable claw 5d ... Lock bar 5e ... Set screw 6 ... Pin 7 ... Special bulletproof glass 9 ... Rotary cutter 10 ... Rotating drum 11 ... Cutter bit 12 ... Drive motor 12a ... Motor drive shaft 13 ... Cutter holder 14 ... Outer drum 15 ... Inner drum 15a ... Rotary drive shaft 16 ... Elastic member 17, 18 ... Locking piece 19 ... Bearing 20 ... Roller bearing 24 ... Food 26 ... Rake grapple 26a ... Fixed comb blade 26b ... Movable comb blade 26c ... Cylinder

Claims (3)

In a rotary cutter type landmine treatment device that attaches a rotary cutter to the tip of a undulating and refracting arm of a heavy machinery vehicle used in excavators such as backhoes, the rotary drum of the rotary cutter is a cutter holder welded to the peripheral surface A double structure of an outer drum in which a cutter bit is implanted via an inner drum and an inner drum connected to a motor drive shaft, an elastic member is interposed between the outer drum and the inner drum, and a locking piece from both sides A rotary cutter type landmine treatment device characterized by projecting and engaging in the rotational direction. The rotary cutter type landmine treatment device according to claim 1, wherein one of the locking pieces is two in parallel, and the other is one inserted between them. The rotary cutter type landmine treatment device according to claim 1 or 2, wherein roller bearings are arranged side by side on the bearing of the rotary drive shaft of the inner drum.

Images