JP2003513187A - Blade for drilling assembly and related equipment - Google Patents

Abstract

(57) SUMMARY A vane (12) for a drilling assembly has a base portion (24) and a terminal portion (26) remote from the base portion (24). The base portion (24) is wider than the terminal portion (26), and the blades are gradually narrowed in the width direction between the base portion and the terminal portions (24, 26). The first, second and third sharp ends (28, 30, 32) are provided on the vane (12) and each have a flank (34) at an angle of at least 90 degrees. Each of the flanks (34) is bent relative to each of the flanks (34) at the other end. As the vanes rotate through the tangible about an axis in the drilling assembly, the orientation of the flanks (34) of the sharp ends (28, 30, 32) causes the vanes (12) to exhibit a digging effect.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD OF THE INVENTION

This invention relates to blades for a digging assembly. Such a drilling assembly and its associated equipment are disclosed in our co-pending British Patent Application No. GB9901997.8.

The present invention also relates to a grinding hopper and this specification and GB990.
A movable vehicle having a drilling assembly as disclosed in 1997.8.
ehicle). Drilling assemblies and equipment such as these help in the removal of land mines and other unexploded ordnance.

[0003]

[Means for Solving the Problems]

According to one aspect of the present invention, a blade used in a drilling assembly includes (a) a base portion and a terminal portion separated from the base portion, the base portion being wider than the terminal portion, and the blade Is gradually narrowed in the width direction between the base portion and the terminal portion, and (b) is further provided with a first sharp arc-shaped end portion (extending between the base portion and the terminal portion of the blade). edge), and (c) a second sharp, arcuate end extending between the base and terminal of the vane, each of the first, second and third ends having Flanks flanking an angle of at least 90 degrees therebetween, each of the flanks being bent with respect to the respective flank of the other end.

The vane according to this aspect of the invention can be installed with its base on the axis of rotation of the drilling assembly in one of two directions. In the first direction, the rotation of the rotary shaft in the predetermined direction causes the blades to rotate about the axis of the rotary shaft such that the first end is the head and the second and third ends are respectively following. To do. In the second direction, the rotation of the rotary shaft in the predetermined direction causes the blades to rotate about the axis of the rotary shaft such that the third end is first and the second and first ends are trailing respectively. To do.

In use, a drilling assembly such as that disclosed in this specification and GB9901997.8 is placed or inserted in the ground of minefields or conflict zones, for example by push or tow vehicles. It may be driven forward. When the blade according to the invention is installed on the axis of rotation of a drilling assembly in a first direction, rotation of the axis of rotation in a predetermined direction causes the first sharp end of the blade to move to the soil as well as, for example,
Excavating tree and plant roots, trap wires and cables, which removes unexploded weapons such as mines. Then, aft second and third sharp edges follow the first sharp edge in the excavated material.

The angle between the flanks of the first, second and third ends of the vane, the relative orientation of the flanks, and the relatively wide base of the vane causes the relatively wide flanks of the vane to Defined on the first and third ends. The flanks of the third end have the effect of being dug out because the third sharp end follows the first sharp end of the excavated tangible material and other debris of the soil. This excavates any solid from where it can be easily removed and destroyed to the surface of the mine laying area.

Even if roots or other plants are wrapped around the axis of rotation of the drilling assembly, the axis of rotation can rotate in the opposite direction. This causes the third sharp end to excavate the roots and plants around the shaft and remove those entangled around the shaft.

When the blade according to the first aspect of the present invention is installed on the rotary shaft of the drilling assembly in the second direction, the rotation of the rotary shaft of the drilling assembly in the predetermined direction causes the third sharp end to move. Excavate soil etc. The rearward second and first ends continue rearward through the excavated tangible material, and the direction of the flanks of the first end excavates the excavated material and other solids to the surface.

In an embodiment of this aspect of the invention the second sharp end flank subtends 90 degrees. Also, the flanks of the first and third sharp, arcuate ends make an angle of 90 degrees.

In another embodiment, the vane first and / or third sharp end flanks are recessed.

The flank depth of the second sharp edge, measured along a line perpendicular to the length of the second sharp edge, is 25 mm.

In a preferred embodiment of this aspect of the invention, each of the connections between the flanks of the second and third ends has a chisel edge.

The placement of the chisel end is useful when the vane is used in a rock or rocky ground driven drilling assembly. In such use, the vanes are mounted on the axis of rotation of the drilling assembly in the second direction. Then, by rotating the rotary shaft in a predetermined direction, the third sharp end of the blade excavates the soil, and the position of the chisel end is determined such that the chisel end is the leading end during rotation. As a result, the chisel end can crush and chop the rocks and stones encountered by the blades.

The second sharp end cuts the tangible material crushed or chopped by the chisel end following the chisel end. Finally, the first end is crushed, crushed, followed through the cut tangible material, and the direction of the flanks serves to assist in digging the cut tangible material.

The length of each of the chisel ends measured along each of the connections between the flanks of the second and third ends of the vane may be any value, but in a preferred embodiment. Is 25 mm.

The width of the vane base may be any value, but in the preferred embodiment is 75 mm.

According to a second aspect of the present invention, a blade used in a drilling assembly having three or more limb members, each leg having: (a) a base portion; , A terminal portion distant from the base portion, the terminal portion being wider than the base portion, and each of the leg-shaped members is gradually narrowed in the width direction between the base portion and the terminal portion. And (b) a first sharp arcuate end extending between the base portion and the terminal portion, and (c) a second sharp end portion defined by the terminal portion, d) a third sharp arcuate end extending between the base portion and the terminal portion, wherein the three or more leg members are equidistantly spaced from each other and are located in the central region of the blade. Base to extend from In contact they are joined together.

The vanes according to this aspect of the invention may be fixed to the axis of rotation of the drilling assembly, which extends through the center of the vanes.

[0019]   The number of legs is determined by the size of the drilling blade.

In a preferred embodiment, the entire perimeter edge of the blade (apart from the portion used to secure the blade) is sharp. Such sharp edges, along with the vane leg member configuration, produce continuous excavation as the vanes rotate about the axis of rotation of the excavation assembly.

Like the blade according to the first aspect of the invention, the blade according to the second aspect of the invention is
When used in soil driven drilling assemblies, it excavates solids and large tangible objects such as stones or unexploded weapons to the surface.

A drilling assembly having one or more vanes according to the second aspect of the present invention may have a guillotine member associated with each vane.
Each guillotine member may be installed in the drilling assembly parallel to the associated vane and from there slightly offset to one side.

When a drilling assembly having one or more vanes and associated guillotine members is driven in soil in a mine laying area or a conflict zone, the action of the guillotine on the vanes overtaking the guillotine members may cause barbed wire, razor Such wires, and tangible objects such as plant roots, to prevent it from wrapping around the axis of rotation of the drilling assembly.

A drilling assembly having one or more vanes according to the second aspect of the invention, as well as having one guillotine member on top, includes one or more teeth (ti) mounted on the rotating shaft.
ne) may be included. The teeth may extend along the axis of rotation from the axis of rotation that connects the near set of vanes.

When the excavation assembly is driven in soil in a mine laying area or a crushed area, the rotating shaft rotates the blades in the soil. During such movements, the axis passes near the surface of the soil.
As the excavation assembly advances, soil may interfere with the rotation and movement of the shaft, i.e., the shaft may plunge into the excavated soil in front of the vanes and prevent advancement of the excavation assembly. Each tooth on the rotating shaft reduces the pressure required to push the shaft through the soil. The teeth serve to dislodge and move the soil in front of the blades to lift loosened soil and objects beyond the top of the shaft and to advance the shaft and excavation assembly unhindered. The teeth also help lift and dig relatively large objects to the surface of the soil. In the embodiment where the drilling assembly comprises an auger, the teeth may move the soil in the direction of the mill during rotation of the shaft.

Placing such teeth in a drilling assembly means that it is possible to use a relatively low power vehicle to drive the drilling assembly, for example, in soil in a mine laying area or a conflict zone. means.

[0027]   The teeth may change shape depending on the circumstances in which the drilling assembly is used.

The drilling assembly may have multiple vanes according to the second aspect of the invention. The exact number of blades and the distance between the blades on the axis of rotation depends on the amount and size of debris likely to be found in the soil in which the drilling assembly is driven. Thus, the number of blades and the spacing between the blades are selected. Similarly, the diameter of each blade and the length of each leg member of each blade used in the drilling assembly will depend on the depth of drilling required for the drilling assembly.

According to a third aspect of the present invention, a moveable vehicle is: (a) a drilling assembly, and (b) a hopper with one end open, which is transported to the hopper. One or more movable crushing members (moveable g) for crushing a tangible material into a predetermined size.
(c) a conveyor for transporting tangible material from the excavation assembly to the hopper, the conveyor structure comprising magnets for removing iron debris and discrete pieces. And a sieve to remove the small or small pieces before they reach the hopper.

The conveyor structure may include a conveyor belt having a magnetic roller at its tip. As a result, the iron scrap contained in the tangible material carried on the conveyor belt is removed.

[0031]   The magnetic roller may include a roller including a permanent magnet or an electromagnet.

The conveyor may include a perforated conveyer belt. The small, loose particles contained in the tangible material conveyed on the conveyor belt may fall through the holes before the tangible material reaches the hopper.

The drilling assembly may have vanes according to the first or second aspects of the present invention, and preferably has a plurality of vanes according to the first or second aspects of the present invention.
In such an embodiment, the drilling assembly may have a guillotine member in the vicinity of the one or more blades and may have one or more teeth on the axis of rotation in the vicinity of the one or more blades. You can do it.

The grinding hopper may include a plurality of pivotable hammers and one or more back plates.

For example, it may be one concatenated metal back rate, or two plates that follow a reciprocating track in front of or on one side of the rotatable hammer.

The plurality of hammers may be mounted on one or more rotary flywheels.

The grinding hopper may further include a grille between the plurality of rotatable hammers and the back plate. Such a grid can be used to ensure that only particles larger than the size of the holes in the grid are retained in the grinding hopper and smaller particles fall by gravity from the grid. This can be used to determine the size of the particles produced by the hopper as they leave the rotatable hammer through the grid as soon as the particles are small enough.

The distance between the plurality of rotatable hammers and the back plate may be adjustable. This can change the size of the particles produced by the hopper.

According to a fourth aspect of the present invention, a method of clearing a mine laying area comprises: (i) driving a drilling assembly through the soil in the mine laying area and then digging to the surface of said soil. Collecting the separated loose debris, (ii) separating the iron-containing material from the debris and collecting the iron-containing material in a collection container, and (iii) for depositing on the soil And (iv) crushing the remaining non-ferrous scraps into a predetermined size in order to deposit the remaining non-ferrous scraps on the soil.

The method further comprises (v) observing the drilling assembly, and (vi) stopping the drilling assembly when one or more objects larger than a predetermined size have been dug up to the soil surface by the drilling assembly. And (vii) removing the one or more objects before resuming operation of the drilling assembly.

According to a fifth aspect of the present invention there is provided a method as set forth in claim 35.

[0042]

DETAILED DESCRIPTION OF THE INVENTION

Preferred embodiments of the present invention will now be described by way of non-limiting example and with reference to the accompanying drawings.

A drilling assembly 10, such as the drilling assembly shown in FIGS. 1 and 2, is disclosed in our co-pending British patent application no. It is disclosed in detail in GB9901997.8.

The drilling assembly 10 shown in FIGS. 1 and 2 includes a plurality of vanes 12 mounted on a rotating shaft 14. When the excavation assembly 10 is driven around soil in a land mine area, the rotating shaft 14 rotates the blades 12 in the soil. The sharp end of the blade 12
Excavate soil and other material such as plant roots and wires.
Solids such as stones or unexploded weapons are brought to the surface of the soil by the rotating wings. Here, they are scooped and collected by one of several buckets 16 that pass through a conveyor path 18 on the drilling assembly 10.

The bucket 16 travels on the conveyor track 18 and carries the objects collected from the soil surface until they reach the highest point 20 of the conveyor track 18. Highest point 2
At 0, the bucket 16 is flipped over to drop the load into or on the collection member.

Then, the bucket 16 further moves on the conveyor track 18 to a position where the object dug out on the ground surface by the blade 12 can be collected again.

A camera 22 may be provided to observe the buckets 16 moving on the blades 12 and the conveyor track 18.

[0048]   The camera 22 enables remote control of the drilling assembly 10.

Once the unexploded weapons collected by one of the buckets 16 are observed by the operator through the camera 22, the drilling assembly 10 may be shut down and the unexploded weapons safely processed.

In another embodiment, a ribbed conveyor bead is used.
lt) may be exchanged for the bucket 16. In such an embodiment, objects excavated to the surface by the vanes 12 may be collected by regularly spaced ribs, each rib dropping its load into or on the collection member. It may be moved to the highest point 20 of the conveyor track 18 prior to being driven.

Applicable to a drilling assembly 10 as shown in FIGS. 1 and 2, a vane 12 according to the present invention is shown in FIG.

The blade 12 includes a base portion 24 and a terminal portion 26 separated from the base portion 24.
Including and The base portion 24 is wider than the terminal portion 26 and is gradually narrowed in the width direction between the base portion 24 and the terminal portion 26.

The width of the blade 12 is proportional to the length of the blade. Therefore, if the desired cut depth of the blade 12 is 250 mm, the width of the base portion 24 of the blade 12 is 75 m.
m.

The vane 12 includes a first arcuate end 28 extending between the base portion 24 and the terminal portion 26. The first end 28 is sharp and in the embodiment of FIG. 3 is convexly curved.

The second end 30 extends from the first end 28 to the terminal portion 26 of the blade 12. The second end 30 is sharp and in the embodiment of Figure 3 is flat.

In addition, vane 12 includes a third arcuate end 32 extending from second end 30 between terminal portion 26 and base portion 24. The third end 32 is the first end of the blade 12.
Extending along the opposite side to the end 28 of the. The third end 32 is sharp,
In the embodiment of FIG. 3, it is curved in a concave shape.

The three sharp ends 28, 30, 32 have flanks that subtend between them by an angle of at least 90 degrees. On each side of the blade 12, each end 28, 30
, 32 of which one is skewed with respect to the other.

The vanes 12 may be fixed to the axis of rotation 14 of the drilling assembly 10 at their base portion 24 in one of two orientations. In either orientation, the plane of blade 12 is substantially perpendicular to the axis of shaft 14.

When the vanes 12 are installed in the first orientation, rotation of the shaft 14 during normal forward movement of the drilling assembly 10 causes the vanes 12 to rotate about the axis of the shaft and the first end 2
8 precedes and is followed by second and third ends 30, 32 respectively.

During such rotation, the first end 28 cuts soil and, for example, tree and plant roots, trap wires and cables, thereby removing any unexploded weapons such as land mines. Subsequent second and third ends 30, 32 are cut materials.
al) to the first end 28.

The corners of flanks 28, 30, 32 flanked by flanks 34, the relative orientations of flanks 34, and the relatively wide base portion 24 of vane 12 are
And that the flanks 34 of the third ends 28, 32 are relatively wide. This is because the third end 32 follows the first end 28 through the cut tangible material and other debris in the soil, so that the flank 34 of the third end 32 has a digging effect (
lifting effect).

The rotation of the shaft 14 may be reversed so that the third end 32 precedes and the second and first ends 30, 28 respectively follow. During such rotation, the third end 32 cuts any roots or vegetation that would, for example, wrap around the shaft 14.

When the vanes 12 are installed in the second orientation, rotation of the shaft 14 during the normal forward movement of the drilling assembly 10 leads the third end to the second and first ends. Thirty
, 28 respectively, the vanes 12 rotate about the axis of the shaft.

During such rotation, the third end excavates soil or the like, and the subsequent second and first ends 30, 28 continue through the cut tangible material. The flank 34 of the first end 28
Depending on the relative size and orientation of the, the cut tangible objects, and any solid objects, are excavated to the surface, as described above with reference to the first orientation.

The flanks 34 of the first end 28 and the third end 32 may optionally be concave.

The blade 12 shown in FIG. 3 includes a chisel edge 36. The chisel end 36 includes a connection (ju) between the flanks 34 of the second end 30 and the third end 36.
nction). The chisel end 36 is also located between the flanks 34 of the second end 30 and the third end 32 opposite the vane 12 shown in FIG.

In an embodiment of the vane 12 that includes a chisel end 36, the vane is such that during rotation of the shaft 14, both the third end 32 and the chisel end 36 are leading edges. 12 may be installed in the second orientation. This causes the chisel end 36 to split and chop the rock encountered by the vane 12 during rotation about the axis of the shaft.
)be able to.

The second end 32 follows the chisel end and cuts the tangible material smashed by the chisel end 36. The flank 34 of the first end 28 digs out a cut tangible object in a manner similar to that described above.

In the preferred embodiment, the length of the chisel end 36 measured along the connection between the second and third ends 30, 32 is 25 mm. A further blade 12 according to the invention is shown in FIG. The blade 12 includes three leg members 38. Each leg member 38 has a base portion 40 and a terminal portion 42. The terminal portion 42 is wider than the base portion 40, and each leg-shaped member 38 is gradually narrowed in the width direction between the terminal portion 42 and the base portion 40.

Each leg member 38 includes a first arcuate end portion 44 extending between the base portion 40 and the terminal portion 42. The first end 44 is sharp and in the embodiment of Figure 4 is concavely curved.

The second end portion 46 extends from the first end portion 44 of each leg member 38 to the terminal portion 42. The second end 46 is also sharp and, in the embodiment of FIG. 4, curved convexly.

Each leg member 38 also includes a third arcuate end 48 extending between the terminal portion 42 and the base portion 40. The third end 48 extends along the opposite side of the first end 44 of each leg 38. The third end 48 is sharp and, in the embodiment of FIG. 4, is concavely curved.

The three legs 38 have their base parts 4 which strike the central region 50 of the vanes 12.
They touch at 0 and are joined together. The leg members 38 extend from the central region 50 at regular intervals. In the embodiment shown in FIG. 4, the leg members 38 are typically flush with each other.

By drilling the shaft 14 through the center point 50 of the vane 12 and securing the vane 12 and the shaft 14 together, the drilling assembly 10 as shown in FIGS. 1 and 2.
The vanes 12 may be fixed to the rotating shaft 14 on the inside. Then, the rotation of the shaft 14 causes the leg member 38 to rotate around the axis of the shaft 14.

The sharp ends 44, 46, 48 of the leg members 38 may form a series of sharp ends close to the periphery of the blade 12.

When the vanes 12 shown in FIG. 4 are used in the drilling assembly 10, the vanes 12 are
When it is rotated by 4, it is a guillotine block.
) The guillotine block 52 may be positioned on the drilling assembly 10 such that it passes near 52.

The structure shown in FIG. 5 a shows several vanes 12 of FIG. 4 mounted on a rotary shaft 14. Several guillotine blocks 52 are fixed to each other on the vanes 12 and several guillotine blocks 52 are arranged on the drilling assembly 10 such that they are offset parallel to one side of the adjacent vanes 12. When the shaft 14 rotates, each blade 12 moves to the guillotine block 5
Pass near one of the two. Barbed or trap wires, or objects such as plant roots (i
tem) is dug up by the leg member 38 of the blade 12, the guillotine block 5
The movement of the vanes 12 through 2 cuts them so that the object does not wind around the axis of rotation 14.

The axis of rotation 14 of FIG. 5 a has several tines 54 between adjacent vanes 12.
Further includes. The teeth 54 extend along the length of the shaft 14 between adjacent vanes 12,
It projects outward from the shaft 14 between the adjacent blades 12. The teeth 54 are fixed relative to the shaft 14 so that during rotation of the shaft 14 the teeth 54 rotate with the vanes.

The six legs (limb) installed on the rotary shaft 14 combining the three teeth 54 in FIG. 5b
s) shows vane 12 with 38. The teeth 54 are installed in the center of the shaft 14 and are equidistantly spaced from the adjacent blades 12.

The teeth 54 may be of various shapes and sizes depending on the various conditions in which the drilling assembly 10 will be used. Two different types of teeth 54 are shown in Figures 5c and 5d.

The tooth 54 shown in FIG. 5c has vertical support members and crossbar members.
It is substantially T-shaped having 55 and 57. The teeth 54 may be fixed to the rotary shaft 14 along a substantially linear end portion 59 provided at the free end of the support member 55.

The tooth 54 shown in FIG. 5d is an arc-shaped curved member that gradually narrows in the width direction of the cross section as it extends from the base portion 63 toward the terminal portion 65. The teeth 54 may be fixed to the rotary shaft 14 along a substantially linear end 67 extending along the base 63 so that the terminal portion 65 becomes the leading end during rotation of the shaft 14.

As shown in FIG. 2, during the forward movement of the drilling assembly 10 including the vanes 12, guillotine members 52 and teeth 54 of FIG. 5 a, the shaft 14 rotates to rotate the vanes 12 in a counterclockwise direction. To do.

By rotating the blades 12 in this manner, the blades 12 cut a portion of the soil as it passes through the soil. Depending on the direction of rotation of the vanes 12 with respect to the direction of movement of the excavation assembly 10, some soil is excavated, along with the trailing edges of the vanes 12, and the soil wave 69 pushed up in front of the vanes 12. (FIG. 5e) is formed.

The excavation effect of the blades 12 further excavates buried objects such as unexploded weapons and land mines 71 to the surface of the soil so as to bring them to the surface of the swell of the soil.

Further, the rotation of the shaft 14 causes the teeth 54 to rotate in the same direction as the blades 12. The teeth 54 serve to dig up the soil and any other buried objects encountered by the vanes 12. Such rotation also excavates small objects, such as loose soil and small weapons or other debris, above shaft 14 for collection by bucket 16 of excavation assembly 10. The teeth 54 thereby reduce the amount of soil and debris in front of the blades and aid in the movement of the shaft 14 through the soil in the direction of movement of the drilling assembly 10.

Any loose soil or small objects that fell from the swell to the front of the vane 12, rather than being excavated above the shaft 14, would have the vane 12 and teeth 54 rotating as they passed through the soil. Will be dug again by. Such disjointed objects and objects are thereby propelled forward of the vane 12 until they are dug up above the shaft 14 for collection by one of the buckets 16.

The size of the object that the tooth 54 can dig above the shaft 14 is determined by the distance A between adjacent blades 12 mounted on the shaft 14. This is because the tooth 54 has a blade 1
This is because the length is generally relatively shorter than 2, and thus the excavated object must pass between adjacent blades 12.

This means that a weapon 1 that is larger than a given size has a bucket 1 of the drilling assembly 10.
Allows adjustment of the drilling assembly 10 to ensure that it is not excavated by 6. Since such objects cannot be excavated above axis 14, they are advanced over the undulations of soil created in front of vanes 12.

A large object, such as an unexploded land mine, is brought to the surface by a camera 22 provided on the excavation assembly 10 for observing the vanes 12 and buckets 16,
An operator can determine whether to stop the drilling assembly 10 when carried on a soil swell in front of the blade 12. This is a drilling assembly 1
Allows safe removal and / or detonation of objects before zero operation is resumed. The camera 22 thereby provides a means by which the drilling assembly 10 can be operated remotely.

[0091]   A movable vehicle 56 according to the present invention is shown in FIGS.

Movable vehicle 56 includes excavation assembly 10 and a conveyor arrangement.
nt) 58 and a grinding hopper 60.

1 and 2 and co-pending patent application no. The drilling assembly shown in GB9901997.8 is applicable as the drilling assembly 10 of FIG.

In the illustrated embodiment, the conveyor structure 58 includes a first conveyor 6
2 and a second conveyor 64.

The first conveyor 62 comprises an endless, flexible belt 66 which is movably wrapped around two rotating rollers 68, 70 at regular intervals. Roller 68
Is located below the upper end of the drilling assembly 10. The conveyor belt 66 is a first
Of rollers 68, and extends horizontally from the first roller 68 to a second roller 70 located away from the drilling assembly 10.

[0096]   The roller 70 has a magnet which may be a permanent magnet or an electromagnet.

Like the first conveyor 62, the second conveyor 64 also comprises an endless, flexible belt 66 that is movably wrapped around two rotating rollers 74, 76 spaced apart.

The roller 74 is located beside the roller 70 of the first conveyor 62 and slightly below. The second conveyor belt 72 extends in the same direction as the first conveyor belt 66. It is wrapped over rollers 74 and extends horizontally from rollers 74 to a second roller 76 away from the first conveyor 62.

The second conveyor belt 72 has a large number of perforations, each of which has the same size and allows smaller pieces smaller than a predetermined size to drop through the belt 72 under gravity. it can.

The two TV cameras 22 and 78 are provided at a raised position above the movable vehicle 56. The cameras 22, 78 can be tilted, swiveled, and zoomed. These not only help control the maneuvering of the vehicle 56, but also allow observation of the material carried through the mobile vehicle 56. In particular, one of the cameras 22 observes the material excavated by the drilling assembly 10 and the other camera 78 focuses on the material conveyed through the rest of the vehicle.

The material excavated by the bucket 16 of the excavation assembly 10 is
When 6 reaches the highest point 20 of the conveyor track 18, it is dropped onto the first end 68a of the first conveyor 62.

The material thus shed is transported towards the rollers 70, which are remote from the drilling assembly 10. Once the material reaches the roller 70, any debris contained in the material is attracted by the magnets incorporated in the roller 70 towards the area of the conveyor belt 66 surrounding the roller 70.

As the conveyor belt 66 moves around the rollers 70, non-ferrous material
The ferrous material) is all carried to the end of the first conveyor 62 and falls under gravity onto the first end 74a of the second conveyor 64.

The iron scrap does not fall from the end of the first conveyor 62 along with the non-iron scrap due to the attractive magnetic force provided by the rollers 70. As a result, the iron scraps are conveyed by the conveyor belt 66 as the conveyor belt 66 moves around the rollers 70.
Remains in contact with. This effectively separates any scrap metal from other materials carried through the mobile vehicle 56.

The iron scrap remains in contact with the conveyor belt 66 until the iron scrap moves a predetermined distance from the second roller 70 toward the original first roller 68. At this time, the magnetic force is too weak to keep the iron scraps in contact with the belt 66. Therefore, the iron scraps fall from the belt 66 under gravity and are collected by the chute 82 in the collecting container (c
Guided by the ollection receptacle 80.

This allows for the safe handling of unexploded weapons, thus decoupling unexploded weapons, such as small antipersonnel mines, from the material carried via mobile vehicle 56. To enable that. Furthermore, collecting any scrap iron ensures that it is not returned to the soil. Mine laying area inspection (minefie) from other objects using metal detection equipment
It is a UN requirement to remove metal debris from land mine areas so that ld audits can be performed. Removal of iron scrap reduces the number of false alarms that may be generated by different ones.

The non-ferrous material that has fallen onto the first end 74 a of the second conveyor 64 leaves the first conveyor 62 and is carried toward the second roller 76 of the second conveyor 64. Since the second conveyor belt 72 has holes, small pieces smaller than a predetermined size fall through the conveyor belt 72 under gravity.

When the non-ferrous material remaining on the second conveyor belt 72 reaches the second roller 76, it is carried over the second end 76a of the second conveyor 64 and under gravity, of the grinding hopper 60. Fall inside.

[0109]   The internal details of the grinding hopper according to the present invention are shown in Figures 8A and 8B.

The milling hopper includes a back plate 84, 2A in FIG. 8A.
It is shown as an articulated metal back plate that circulates around two vertically spaced rollers 86, 88.

Several flywheels 90 are provided in the area surrounded by the back plate 84. As shown in FIG. 8B, each rotary flywheel 90 is provided with a plurality of rotatable hammers 92.

When material is introduced from the top of the crushing hopper, it is crushed or broken between the hammer 92 and the back plate 84.

The hammer 92 is rotatable in order to be able to spring up very hard substances. The hammer may be provided in various shapes and sizes, depending on the nature of the material and the soil structure of the cut material placed in the grinding hopper.

The back plate 84 is movable to prevent obstruction by damp material that may be placed in the grinding hopper.

In another embodiment, the reciprocating track (re) on either side of the rotary flywheel 90 is
Two or more separate plates movable along the ciprocating path) may be replaced with the articulated metal back plate 84.

The grinding hopper may include various flywheel 90 and rotatable hammer 92 combinations. The flywheel / hammer assembly moves toward or away from the back plate 84 to allow for the production of different sized pieces and for mounting the rotatable hammer 92. Can be made.

The size of the pieces produced by the grinding hopper can also be determined wholly or partly by the size of the holes provided in the grille 94.

The grid 94 is optional. If present, it is located between rotatable hammer 92 and back plate 84. Providing the grid 94 between the hammer 92 and the back plate 84 means that smaller pieces than a predetermined size fall under gravity into the grid 94 through the holes.

Small pieces that are larger than the predetermined size of the holes in the grid 94 are crushed further into the hammer 92 so that they are shattered further under gravity until they are small enough to fall off the hammer 92 through the grid 94. Retained between the grid 94.

[0120]   The grid 94 may be made of hardened metal.

[Brief description of drawings]

[Figure 1]   FIG. 1 is a side view showing a drilling assembly according to the present invention.

[Fig. 2]   2 is a perspective view of a drilling assembly similar to that shown in FIG.

FIG. 3 is a perspective view showing a vane according to the present invention used in a drilling assembly as shown in FIGS. 1 and 2.

FIG. 4 is a perspective view showing a further vane according to the present invention used in a drilling assembly as shown in FIGS. 1 and 2.

5a is a schematic diagram showing some of the blades shown in FIG. 4 installed on a rotating shaft in a drilling assembly as shown in FIGS. 1 and 2, and FIG. 5b in combination with multiple teeth. FIG. 5 shows the vane of FIG. 4 installed on a rotary shaft, FIGS. 5c and 5d show separate teeth according to an embodiment of the invention, and FIG. 5e shows the drilling assembly shown in FIG. 5a. 5 shows the vane of FIG. 4 during its forward movement of FIG.

[Figure 6]   FIG. 6 is a schematic side view showing a movable vehicle according to the present invention.

FIG. 7 is a perspective view of a movable vehicle according to the present invention, similar to that shown in FIG.

8A and 8B are perspective views showing internal details of a crushing hopper according to the present invention.

[Procedure for Amendment] Submission for translation of Article 34 Amendment of Patent Cooperation Treaty

[Submission date] January 30, 2002 (2002.30)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Contents of correction]

[Claims]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0029

[Correction method] Change

[Contents of correction]

According to a third aspect of the present invention, a movable vehicle for cleaning unexploded weapons from soil (
a moveable vehicle), (a) an excavation assembly operable for smashed debris, for digging said debris to the surface of the soil for transport via a conveyor track, (b) said A moveable vehicle for transporting tangible material from a drilling assembly, comprising a magnet for removing iron scrap and a conveyor having a sieve for removing loose or small pieces from the material, the vehicle comprising: Has a hopper that is opened, and the hopper has one or more movable grinding elements for crushing a tangible material conveyed to the hopper into a predetermined size.
Having inside, the conveyor conveys tangible material to the hopper, and the sieve (
The sieve) is characterized in that the tangible material to be conveyed removes small or small pieces by the time it reaches the hopper.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0039

[Correction method] Change

[Contents of correction]

According to a fourth aspect of the present invention, (i) driving a drilling assembly propelled by a vehicle for clearing unexploded weapons from the soil through the soil in the land mine laying area, and thereafter on the surface of said soil. Collecting the disassembled scraps excavated into and transporting the disassembled scraps using a conveyor functionally associated with the vehicle; and (ii) a magnet containing iron from the scraps And collecting the iron-containing material in a collection container, and (iii) separating small pieces of non-ferrous pieces from non-ferrous scrap using a sieve to deposit on the soil. A method of clearing a land mine laying area, the method comprising: (iv) crushing remaining non-ferrous scraps into a predetermined size in a crushing hopper in order to deposit them on the soil. Tosu Provide a method of clearing the mine laying area.

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Claims (35)

[Claims] 1. A blade used in a drilling assembly, comprising: (a) a base portion and a terminal portion spaced from the base portion, the base portion being wider than the terminal portion, and the blade being (B) a first sharp arcuate end portion extending between the base portion and the terminal portion of the blade, the width being gradually narrowed in the width direction between the base portion and the terminal portion; c) has a second sharp end defined by the terminal portion, and (d) has a third sharp end extending between the blade base portion and the terminal portion. 1, each of the second and third ends having a flank at an angle of at least 90 degrees between them, each of the flanks being bent with respect to a respective flank of the other end. A feather 2. The vane of claim 1, wherein the flanks of the second sharp edge form a 90 degree angle. 3. A blade according to claim 1 or 2, wherein the flanks of the first and third sharp, arcuate ends make an angle of 90 degrees. 4. At least one of said first and third sharp, arcuate ends.
The blade according to claim 1 or 2, wherein two flanks are depressed. 5. A blade according to claim 4, wherein the flanks of each of the first and third sharp, arcuate ends are recessed. 6. The depth of the flank of the second sharp edge as measured along a line perpendicular to the length of the second sharp edge is 25 mm. Or the described feather. 7. A blade according to any preceding claim, further comprising a chisel end at each of the connections between the flanks of the second and third ends. 8. The length of each of the chisel ends is 25 mm.
The described feather. 9. A blade according to claim 1, wherein the width of the base of the blade is 75 mm. 10. A blade as generally described herein with reference to FIG. 3 of the accompanying drawings and / or as shown in FIG. 3 of the accompanying drawings. 11. A blade for use in a drilling assembly having three or more leg members, each leg member having (a) a base portion and a terminal portion remote from the base portion. The terminal portion is wider than the base portion, and the leg-shaped member is gradually narrowed in the width direction between the base portion and the terminal portion. (B) Furthermore, the base portion and the terminal portion A first sharp arcuate end extending between and (c) a second sharp end defined by the terminal, and (d) extending between the base and the terminal. A third sharp arcuate end, and the three or more leg members are in contact with each other at the base portion and are joined to each other so as to extend from the central region of the blade at equal intervals. Feathers. 12. The blade of claim 11, wherein the sharp ends of the legs form a series of closely spaced sharp edges on the periphery of the blade. 13. A blade as generally described herein with reference to FIG. 4 of the accompanying drawings and / or as shown in FIG. 4 of the accompanying drawings. 14. A drilling assembly, each having one or more vanes according to claim 11, wherein the axis of rotation extends through the center of each vane and is fixed to each vane. 15. A guillotine member attached to each blade,
Each guillotine member extends parallel to one side surface of each blade,
The drilling assembly of claim 14, further moved to one side of each vane. 16. A drilling assembly according to claim 14 or 15, wherein the axis of rotation has one or more teeth extending from the axis of rotation in the vicinity of the respective vanes. 17. A drilling assembly as generally described herein with reference to FIG. 5 of the accompanying drawings and / or as shown in FIG. 5 of the accompanying drawings. 18. A digging assembly comprising: (a) a hopper having an open end; and (b) one or more movable crushing members for crushing a tangible material conveyed to the hopper into a predetermined size. And (c) a conveyor for transporting tangible material from the excavation assembly to the hopper, the conveyor structure comprising magnets for removing iron scrap and discrete or small pieces. Vehicle having a sieve for removing the small pieces before the vehicle reaches the hopper. 19. The movable vehicle according to claim 18, wherein the conveyor structure has a conveyor belt provided with a magnetic roller at a tip thereof. 20. The movable vehicle according to claim 19, wherein the magnetic roller includes a roller including a permanent magnet. 21. The movable vehicle according to claim 19, wherein the magnetic roller includes a roller provided with an electromagnet. 22. The movable vehicle according to claim 18, wherein the conveyor comprises a perforated conveyor belt. 23. Movable vehicle according to any one of claims 18 to 22, wherein the excavation assembly comprises one or more vanes according to any one of claim 1 or its dependent claims. 24. Movable vehicle according to any of claims 18 to 22, wherein the excavation assembly comprises one or more vanes according to any of the claims 11 or its dependent claims. 25. The mobile vehicle of claim 24, wherein the excavation assembly is the assembly of any of claims 14-16. 26. The movable vehicle according to claim 18, wherein the grinding hopper has a plurality of rotatable hammers and a back plate. 27. The movable vehicle of claim 26, wherein the back plate comprises an articulated hard metal back plate that circulates around two spatially separated rollers. 28. The movable vehicle of claim 26, wherein the back plate includes two plates that follow a reciprocating track in front of or on one side of the rotatable hammer. 29. The movable vehicle according to claim 26, wherein the plurality of rotatable hammers are attached to one or more rotary flywheels. 30. The movable vehicle according to claim 26, wherein the grinding hopper further has a grid between the plurality of rotatable hammers and the back plate. 31. The movable vehicle according to claim 26, wherein a distance between the plurality of rotatable hammers and the back plate is adjustable. 32. A mobile vehicle as generally described herein with reference to Figures 6-8B of the accompanying drawings and / or as shown in Figures 6-8B of the accompanying drawings. 33. (i) Driving the excavation assembly through the soil in the land mine laying area, and then collecting the loose debris excavated to the surface of the soil, and (ii) iron from the debris. Separating the contained material and collecting the iron-containing material in a collection container; (iii) separating the small pieces of non-ferrous metal from non-ferrous scraps for depositing on the soil; (iv) remaining A method of clearing a land mine laying area, which comprises a step of crushing non-ferrous scraps to a predetermined size so as to be deposited on the soil. 34. (v) observing the excavation assembly, and (vi) stopping the excavation assembly when one or more objects larger than a predetermined size have been excavated by the excavation assembly to the surface of the soil. 34. The method of claim 33, further comprising the steps of: (vii) removing the one or more objects prior to resuming operation of the drilling assembly. 35. Simultaneously moving a pair of spaced-apart parallel blades having parallel cut ends in two directions through a weapon-spreading soil, thereby dividing the soil, and between the blades. Lying down, moving teeth or partition plate members spaced apart from the cutting end in the two directions at the same time, thereby moving the soil pieces, in at least one of the directions of movement. Moving the blades and / or teeth or partition plate members to dig up the pieces and weapons, and even to dig up pieces of pieces larger than a predetermined size to the top of the weapon-spreading soil near the blades, A method of clearing a weapon from a weapon-spreading soil, wherein a space between the vanes conveys a piece of a segment smaller than the predetermined size away from the vanes.