JP2003042698A - Mine removing cultivator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress failure while simplifying the structure. SOLUTION: Since a mine removing/cultivating roller 18 is rotary driven by transmitting rotation of the sprocket 12 of a tank 11 through a transmission means 57 to the mine removing/cultivating roller 18, no special hydraulic motor nor hydraulic piping is required for driving the mine removing/cultivating roller 18 and thereby the structure is simplified. Furthermore, since a rigid mechanical means can be employed as the transmission means 57, a sufficient durability is exhibited even if the mine is exploded and the probability of failure can be lowered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a land mine processing and cultivating device for digging up and plowing the ground while processing land mines buried in the soil.

[0002]

2. Description of the Related Art More than 110 million land mines are buried in the world, and it is said that 24,000 people are killed or injured each year. Moreover, it is said that the number of land mines removed is only about 100,000 per year, which is a big problem worldwide. The removal of this type of landmines has become an urgent issue worldwide, but in the past, it was treated by searching for each landmine with a metal rod or metal detector, carefully digging it up, and then exploding it. Was. However, since the metal detectors and the like also react with nails and the like, they are inefficient, and there is also a problem that land mines made of plastic and the like are difficult to detect. Furthermore, excavation is dangerous and inefficient. There was a point.

For this reason, in recent years, for example, Japanese Patent Laid-Open No. 2001-74398 has proposed a device capable of simultaneously plowing the land of the minefield while processing the landmine.
This can be rotated around a horizontal axis at the tip of an undulating and bendable arm of a heavy-duty vehicle used for excavator machines such as backhoes, and a rotary cutter with many cutter bits planted on the outer periphery can be attached and detached. The rotary cutter is rotated at a high speed by a direct-coupled hydraulic motor, and the ground mines are dug up and cultivated while crushing the land mines buried in the soil.

[0004]

However, in such a conventional land mine disposing and cultivating device, a special hydraulic motor is required for driving and rotating the rotor cutter.
There is a problem that the structure becomes complicated. Further, since the above-mentioned hydraulic motor is installed in the vicinity of the side of the rotor cutter, there is a problem in that when a land mine explodes, the relatively fragile hydraulic motor and hydraulic piping may be damaged.

It is an object of the present invention to provide a land mine disposal / cultivating device which has a simple structure and few failures.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a substantially horizontal connecting frame having a base end connected to a crawler vehicle and extending along an axle of the crawler vehicle, and a tip end of the connecting frame. , A processing cultivating roller which is rotatable about an axis substantially parallel to the ground and has a plurality of claws provided on the outer periphery, and the rotation of a sprocket of a crawler vehicle is transmitted to the processing cultivating roller, and the processing cultivating roller travels the crawler. And a transmission means for rotating at a peripheral speed higher than the speed,
It can be achieved by treating land mines in the soil while excavating the ground with the claws of the tilling roller.

As described above, since the rotation of the sprocket of the crawler vehicle is transmitted to the treatment tilling roller by the transmission means to drive and rotate the treatment tilling roller, a special hydraulic motor and hydraulic pressure for driving the treatment tilling roller are used. No piping is required, resulting in a simple structure. Moreover, since a strong mechanical means can be used as the transmission means,
Even when a land mine is blown up, it has sufficient durability and the probability of failure can be reduced.

According to the second aspect of the invention, the tank developed for war can be used for peaceful purposes, and it can be used in a suitable manner to make the 21st century an era of peace. is there. Further, according to the third aspect of the invention, since the weight of the treated tilling roller can be changed, the soil having a substantially constant depth can be tilled regardless of the hardness of the ground to be tilled.

Further, according to the fourth aspect of the invention, since the ground is dug while scraping up the soil, the efficiency of the tilling work is improved. Further, according to the fifth aspect, the rotation direction of the sprocket and the rotation direction of the treated tilling roller can be opposite to each other with a simple structure, and the impact resistance against the blast of land mines is improved. be able to.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1, 2, and 3, reference numeral 11 denotes a crawler vehicle, here a tank for carrying out a war. This tank 11 is driven by a hydraulic motor with a speed reducer (not shown) to rotate a drive sprocket 12 and the sprocket 12 is rotated.
Is transmitted to the endless crawler 13 to run. Here, since a pair of sprockets 12 and crawlers 13 are provided and the hydraulic motors can be rotated individually and in either forward or reverse directions, the tank 11 can freely travel in any direction. .

Reference numeral 16 denotes a connecting frame whose base end is detachably attached to the vehicle body 17 of the tank 11 and is swingably movable in the vertical direction. The connecting frame 16 is substantially horizontal forward along the axle of the tank 11. Extends to. Reference numeral 18 denotes a steel processing tilling roller having a central axis extending in a direction orthogonal to the extending direction of the connecting frame 16, and small-diameter shaft portions 18a respectively provided at both axial ends of the processing tilling roller 18 are connected to each other. flame
It is inserted into the tip of 16 and is rotatably supported. As a result, the treated cultivating roller 18 is supported by the tip of the connecting frame 16 and can rotate about an axis (central axis) substantially parallel to the ground 19.

On the other hand, the main body portion 18b of the treating tilling roller 18 located between the shaft portions 18a has a diameter larger than that of the sprocket 12, and a large number of claws 21 are screwed around the outer periphery of the main portion 18b in a substantially evenly distributed state. Detachably attached by the main body 18b
Projects a certain distance from the outer circumference. Then, when the treated tilling roller 18 rotates at a peripheral speed larger than the traveling speed of the crawler 13 as described below, these claws 21 dig up the ground 19 and cultivate the soil, but at this time, if a land mine exists in the soil. , This mine is given a shock to explode and process it. When the peripheral speed of the treated cultivating roller 18 is considerably high, the land mine can be treated by crushing it without blasting it.

A cylindrical cavity 23 is formed inside the body portion 18b, and a liquid, for example, water is injected into the cavity 23 through a supply / discharge hole 24 provided at an end surface of the body portion 18b. be able to. As a result, when the liquid is injected into the cavity 23 to increase the storage amount, the self-weight of the treated cultivating roller 18 increases, while when the liquid is discharged from the cavity 23 to reduce the storage amount, the treated cultivating roller is reduced. The weight of the roller 18 is reduced.
In this way, if the self-weight of the treated tilling roller 18 can be changed as necessary, regardless of the hardness of the ground to be cultivated, that is, when the ground is soft, the weight is reduced, and when the ground is hard, the weight is increased. You can cultivate soil with a certain depth. Reference numeral 25 is a cap screwed into the supply / discharge hole 24, and when the cap 25 is screwed, the supply / discharge hole 24 is closed.

Reference numeral 28 is a substantially kamaboko-shaped steel cover which covers substantially the upper half of the processing tilling roller 18 from the outside and is attached to the tip of the connecting frame 16. The cover 28 is formed by the claw 21 as described above. When a land mine is blown up, it shuts off the blast and scattered materials so that they do not escape to the outside. However, since the blast and the like mentioned above cannot be retained inside the cover 28,
The blast and the like are gradually released from a large number of through holes 29 formed substantially uniformly in the cover 28 to reduce the shock.
Here, when a land mine is blown up, the cover 28 and the treated tilling roller 18 may float up due to the blast, but this uplifting is absorbed by the connecting frame 16 swinging upward.

Reference numeral 31 denotes a sorting roller which is installed between the tank 11 and the treating tilling roller 18 and has a rotation axis parallel to the treating tilling roller 18, and which has a small diameter provided at both axial ends of the sorting roller 31. The shaft portion 31a is inserted in the central portion of the connecting frame 16 and is rotatably supported. The main body 31b of the sorting roller 31 located between the shafts 31a is the main body 18b.
Although slightly smaller in diameter, a large number of sorting members 32 are provided on the outer periphery thereof.
Are distributed almost uniformly. Each sorting member 32 is composed of an U-shaped outer frame 33, and a large mesh 34 provided in a rectangular space between the outer frame 33 and the main body 31b. Here, the sorting member 32 from the central axis of the sorting roller 31
The distance to the outer end in the radial direction of is substantially equal to the distance from the central axis of the treated tilling roller 18 to the tip of the claw 21.

As a result, when the selecting roller 31 rotates in the same direction as the treating tilling roller 18 as described later, the selecting member
32 scoops up the soil softened (unraveled) by the nails 21, sifts it, and drops the fine soil through the eyes of the wire mesh 34 onto the ground 19, while the wire mesh 34
Stones, roots of trees, debris of land mines, etc., that are larger than the eyes of the person are left on the wire net 34.

Reference numeral 37 denotes a discharge conveyor installed between the selection roller 31 and the tank 11. The discharge conveyor 37 extends substantially horizontally in the direction orthogonal to the extending direction of the connecting frame 16 and at the other side. Is largely projected from the connecting frame 16 to the other side. The discharge conveyor 37 has a plurality of rollers 39 rotatably supported by a bracket 38 fixed to the connecting frame 16, and a conveyor belt 40 hung around these rollers 39, and any one of the rollers 39 is provided. One of the sorting rollers 31 is provided with a transmission mechanism (not shown).
Is being transmitted.

Then, on the conveyor belt 40 of the discharge conveyor 37, the stones and the like remaining on the sorting member 32 are transferred by the rotation of the selection roller 31, and thus transferred onto the discharge conveyor 37. The rubbed stones are conveyed toward the other side by the traveling of the conveyor belt 40 and fall from the other end of the conveyor belt 40 to the ground 19. Incidentally, 41 is a guide fixed to the connecting frame 16, and this guide 41 is
When a stone or the like is transferred from the sorting member 32 to the discharge conveyor 37, the stone or the like is prevented from rolling down from the discharge conveyor 37.

Reference numeral 45 denotes a first gear that is detachably attached to the sprocket 12 of the tank 11, and the first gear 45 receives the rotational force from the sprocket 12 and is driven and rotated. 46
Is a mounting shaft rotatably supported by the vehicle body 17 of the tank 11, and the mounting shaft 46 has a second shaft meshing with the first gear 45.
Gear 47 and first sprocket 48 having the same diameter as the second gear 47
Is fixed. As a result, these mounting shafts 46, the second
The gear 47 and the first sprocket 48 receive the rotational force of the first gear 45 and rotate in synchronization with the first gear 45 in the opposite direction.

Reference numeral 50 denotes a second sprocket fixed to both shaft portions 31a of the selection roller 31, and 51 denotes a second sprocket fixed to both shaft portions 18a of the treating tilling roller 18, respectively.
It is a third sprocket having a diameter smaller than 50, and a first chain 52 is stretched between these second and third sprockets 50 and 51. As a result, the rotation of the second sprocket 50 is transmitted to the third sprocket 51 via the first chain 52,
The third sprocket 51 is rotated in the same direction as the second sprocket 50.
The rotation speed is increased from the sprocket 50.

Reference numeral 54 is a fourth sprocket which is connected to the second sprocket 50 on one side through a torque limiter 55 and is coaxial with the second sprocket 50.
54 is smaller in diameter than the first sprocket 48. And
A second chain 56 is stretched between the first sprocket 48 and the fourth sprocket 54. Accordingly, the rotation of the first sprocket 48 is transmitted to the fourth sprocket 54 via the second chain 56, and the fourth sprocket 54
Is rotated in the same direction as the first sprocket 48, but at this time, the rotation speed of the fourth sprocket 54 is increased from that of the first sprocket 48.

The above-mentioned first and second gears 45 and 47, the first, second, third and fourth sprockets 48, 50, 51 and 54, the first and second chains 52 and 56, and the torque limiter 55 are the whole. As
The transmission means 57 for transmitting the rotation of the sprocket 12 of the tank 11 to the processing tilling roller 18 is constituted. Here, the main body portion 18b has a larger diameter than the sprocket 12, and the third sprocket 51 has a diameter larger than that of the second sprocket 50. Since the diameter of the fourth sprocket 54 is smaller than that of the first sprocket 48, the treated cultivating roller 18 rotates at a peripheral speed higher than the traveling speed of the crawler 13, which causes the claws of the treated cultivating roller 18 to rotate. 21 excavates the ground 19 and cultivates the soil, and at the same time detonates land mines.

As described above, in this embodiment, the rotation of the sprocket 12 of the tank 11 is processed by the transmission means 57 to treat the tilling roller.
Since it is transmitted to 18 to drive and rotate the processing tillage roller 18, a special hydraulic motor and hydraulic piping for driving the processing tillage roller 18 are unnecessary, and as a result,
The structure is simple. Moreover, since a strong mechanical means can be used as the transmission means 57, even if a land mine is blown up, it has sufficient durability and the probability of failure can be reduced.

Here, since the transmission means 57 has the first and second gears 45 and 47 meshing with each other, the sprocket
The rotation direction of 12 and the rotation direction of the processing tilling roller 18 are opposite to each other. As a result, the treated tilling roller 18 excavates the ground 19 while scraping up the soil, thereby improving the efficiency of the tilling work.

Further, the transmission means 57 is provided with the first and second gears 4
If the first and second chains 52, 56 that transmit the rotations of the gears 5, 47 and the second gear 47 to the treatment tilling roller 18 are used, the rotation direction of the sprocket 12 and the rotation direction of the treatment tilling roller 18 can be made simple. Can be reversed, and the impact resistance against the explosion of land mines can be improved.

Further, as described above, the second sprocket 50 is used.
If a torque limiter 55 is provided between the fourth sprocket 54 and the fourth sprocket 54, large rocks or roots of the tree will be covered by the processing tillage roller 18 and the cover 28 when the ground 19 is dug up by the processing tillage roller 18.
When it is sandwiched between
Since the transmission of the rotational force to 18 can be interrupted on the way, damage to the treated tilling roller 18, the claw 21, and the cover 28 can be prevented.

Next, the operation of the embodiment of the present invention will be described. When cultivating the ground 19 while processing land mines, first, the base end of the connecting frame 16 supporting the processing cultivating roller 18, the selection roller 31, and the discharge conveyor 37 is a tank.
It is connected to the front of the car body 17 of 11. At this time, the ground to be cultivated 19
By injecting or discharging the liquid into the cavity 23 through the supply / discharge hole 24 according to the hardness of the soil, the self-weight of the treated tilling roller 18 is adjusted, and the depth of excavation is made constant. Next, when the hydraulic motor of the tank 11 is operated to rotate the sprocket 12 forward,
The crawler 13 runs, and the tank 11, the connecting frame 16, the processing tilling roller 18, etc. move forward integrally.

At this time, the rotation of the sprocket 12 is transmitted to the treatment tilling roller 18 through the transmitting means 57 and rotates the treatment tilling roller 18. The peripheral speed of the treatment tilling roller 18 is the crawler 13 as described above. Since it is higher than the traveling speed of, the ground 19 directly below the treated tilling roller 18 is dug up by the claw 21. Here, since the rotation direction of the treated tilling roller 18 is the opposite direction to the rotation direction of the sprocket 12 as described above, the treated tilling roller 18 scrapes up the soil and the ground 19
Will be dug.

In this way, the ground 19 is treated by the processing tilling roller 18.
If the claw 21 comes into contact with a land mine in the soil while the mine is being dug, the land mine receives an impact from the claw 21 and is detonated. Cover the blast, scattered objects, etc. generated by this blast
Although it is blocked by 28 so as not to escape to the outside, the shock at this time is alleviated by the escaping of the blast and the like from the through hole 29 gradually. Tanks 11 thus developed for war
Since it has been used for the purpose of peace of land mines, it can be said that it is a proper usage method for making the 21st century an era of peace. In addition, the nails were
If the 21 is damaged, replace it with a new claw 21 as appropriate.

Further, as described above, a large rock or tree root may be caught between the treatment tilling roller 18 and the cover 28 while the ground 19 is being dug by the treatment tilling roller 18, but in this case, The torque limiter 55 cuts off the power transmission between the second sprocket 50 and the fourth sprocket 54 to stop the rotation of the treated cultivating roller 18 and prevent the treated cultivating roller 18, the claw 21 and the cover 28 from being damaged. . When such entrapment occurs, the hydraulic motor of the tank 11 is rotated in the reverse direction to reverse the rotation direction of the treated tilling roller 18, and rocks or the like are pushed out from between the treated tiller roller 18 and the cover 28.

Here, as described above, the soil excavated by the treated tilling roller 18 has become soft, but stones,
Since it contains roots of trees, debris from land mines, etc., it is a problem for field soil. For this reason, this soil is treated by a tilling roller
After scooping by the selection member 32 of the selection roller 31 rotating in the same direction as 18, the soil finer than the mesh of the wire mesh 34 and sifted into large stones and the like, while returning the fine soil to the ground 19 through the eyes of the wire mesh 34, A stone or the like larger than the mesh of the wire net 34 is transferred from the sorting member 32 onto the discharge conveyor 37. The stones, etc. transferred on the discharge conveyor 37 in this way are conveyed by the conveyor belt.
Transported toward the other side by traveling 40, discharge conveyor
It is dropped on the ground 19 from the other end of 37. After that, these stones and the like are separated and discarded manually.

In the above-described embodiment, the cavity 23 is provided in the treatment tilling roller 18, and the weight of the treatment tilling roller 18 is adjusted by injecting the liquid into the cavity 23. In, while the treated cultivating roller is solid, a plurality of holes extending in the axial direction and equidistant in the circumferential direction are provided in the treated cultivating roller, and a weight having a cylindrical shape with the same diameter as the hole is provided in these holes. The own weight of the treated tilling rollers may be adjusted by inserting the required number as necessary. In this case, the treated cultivating roller is strong and its own weight is larger than that of the above-mentioned embodiment, so that it is possible to cultivate even on a hard ground that is crushed, and a large explosion such as an anti-tank landmine. It can also handle force mines.

Further, in the above-described embodiment, the excavated soil is positively scooped by the selection roller 31 and sieved. However, in the present invention, the position where the soil excavated by the treated tilling roller falls. In addition to installing a sieving member consisting of wire mesh that inclines downward toward the tank, attach a chute that inclines downward toward the other side to the tank side end of the sieving member, and sift the soil excavated by the treated tilling roller. In addition to sieving with a member, large stones may be discharged laterally while being guided by a chute.

Furthermore, although the tank 11 is used as the crawler vehicle in the above-described embodiment, a bulldozer, a power shovel, or the like may be used in the present invention. Further, in the above-described embodiment, the treated tilling roller 18 and the cover 28 are integrally formed, but in the present invention, these may be axially divided into a plurality of parts and may be connected to each other at the time of use. By doing so, even if damage is caused by blasting a land mine, it can be easily dealt with by simply replacing the damaged part.

Further, in the above-described embodiment, the connecting frame 16 is swingably connected to the vehicle body 17 of the tank 11, but in the present invention, the base end of the connecting frame is fixed to the vehicle body of the tank. Alternatively, the connecting frame may be divided into two parts at the central portion in the longitudinal direction, for example, at the position of the selection roller, and the two may be rotatably connected by a pin. Further, in the present invention, the mounting position of the cover with respect to the connecting frame may be adjustable in the front-rear direction. Further, in the present invention, when a land mine detection means such as a metal detector is attached to the front end of the cover and a large land mine, for example, an anti-tank land mine is detected,
The tank may be retracted once and then manually excavated and processed.

[0036]

As described above, according to the present invention, it is possible to reduce failures while simplifying the structure.

[Brief description of drawings]

FIG. 1 is an overall side view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway plan view in the vicinity of a treated tilling roller.

FIG. 3 is a plan view of the vicinity of a sorting roller.

[Explanation of symbols]

11 ... Crawler vehicle 12 ... Sprocket 16… Connection frame 18… Treatment tillage roller 21 ... Claw 23 ... Cavity 45 ... 1st gear 47 ... 2nd gear 52, 56 ... Chain 57 ... Transmission means

Claims (5)

[Claims] 1. A substantially horizontal connecting frame whose base end is connected to a crawler vehicle and extends along an axle of the crawler vehicle, and which is supported by a front end of the connecting frame and rotates about an axis substantially parallel to the ground. A transmission means capable of transmitting a rotation of a cultivating cultivating roller having a large number of claws on the outer periphery and a sprocket of a crawler vehicle to the treating cultivating roller, and rotating the treated cultivating roller at a peripheral speed higher than the traveling speed of the crawler. And a land mining and cultivating device, which is characterized in that the land mine in the soil is processed while the ground is dug back by the claws of the processing cultivating roller. 2. The landmine clearing and cultivating apparatus according to claim 1, wherein the crawler vehicle is a tank for performing war. 3. A landmine disposing and cultivating apparatus according to claim 1, wherein the inside of the treated tilling roller is hollow and a liquid is injected into the hollow when the self-weight is increased. 4. The landmine disposing and cultivating apparatus according to claim 1, wherein the sprocket and the cultivating roller are rotated in opposite directions. 5. The transmission means processes the rotation of a first gear that is driven and rotated by a sprocket, a second gear that meshes with the first gear and that rotates in a direction opposite to the first gear, and the rotation of the second gear. The land mine disposal and tiller according to claim 4, further comprising a chain that is transmitted to the tiller roller.