JP4278535B2 - Landmine treatment device and cover for landmine treatment device - Google Patents

Description

  The present invention relates to a landmine processing apparatus for processing underground landmines and a cover for a landmine processing apparatus used for the landmine processing apparatus.

Even in frontiers and military bases where only soldiers approach during the war, areas where landmines are buried underground will be developed as a place of life once the war is over. However, explosive dangers remain for a long time in landmines buried in the ground. For this reason, it is necessary to deal with underground landmines.
Therefore, various techniques for treating landmines have been developed in the past. Examples of such techniques include those disclosed in Patent Document 1 and Patent Document 2.

  The land mine disposal apparatus disclosed in Patent Document 1 is attached to the tip of an arm equipped on a self-propelled vehicle and includes a crushing tool that can be rotated in the longitudinal direction. A plurality of bits or cutters are provided on the peripheral surface of the crushing tool, and the mines in the ground are crushed by the bits or the cutter by rotating the crushing tool. The landmine disposal device is moved by appropriately operating the arm.

  In the landmine disposal machine disclosed in Patent Document 2, a rotating drum having a plurality of landmine removal blades provided on the peripheral surface is provided in front of or behind the self-propelled vehicle. By excavating, the underground mine is removed. A safety cover is installed between the rotating drum and the self-propelled vehicle so as to cover the periphery of the rotating drum and the mine removal blade. This safety cover protects the operator who has boarded the self-propelled vehicle from excavated earth and sand and from debris that exploded during processing.

However, in the technique of the above-mentioned Patent Document 1, although the landmine disposal work is performed in a place separated from the self-propelled vehicle on which the operator is boarded by the landmine disposal device attached to the tip of the arm, The debris scatters over a wide area with a strong momentum, which is unfavorable for safety, and the scattered mine fragments may adversely affect the subsequent processing operations.
Further, in the technique of Patent Document 2 described above, a safety cover is attached around the rotating drum, but if the safety cover comes into contact with the ground, the movement of the mine disposal device or the mine disposal work may be hindered. From the bottom of the rotating drum, position the lower end of the safety drum so that there is always a clearance between the ground and the safety cover, regardless of the amount of ground undulation or the amount of mine removal blades that penetrate the rotating drum. It must be set sufficiently above the lower end.

For this reason, if a mine explodes, mine fragments will scatter widely from the gap between the ground and the safety cover.
There is a technique disclosed in Patent Document 3 as a technique that can be applied to prevent such mine fragments from scattering. This technology is intended to prevent the scattering of concrete debris and the like during concrete crushing work by a hydraulic breaker. The chisel mounted on the head of the hydraulic breaker base can be expanded or contracted vertically or folded. The object is surrounded by an object shield. Specifically, an example in which the chisel is surrounded by a plurality of string-like scattered object shields suspended from above, an example in which the chisel is surrounded by a cylindrical bellows-like scattered object shield, and the like are disclosed. Yes.

Since the flying object shield can be vertically expanded or folded in this way, the lower end of the flying object shield comes into contact with the ground without interfering with the crushing operation of the hydraulic breaker. By the body, the chisel can be covered from the outside, and scattering of fragments such as concrete during the crushing operation can be prevented.
It is conceivable to prevent debris from being scattered at the time of an explosion by covering the cylindrical crushing tool in Patent Document 1 and the rotating drum in Patent Document 2 from the outside with such a scattered object shield. It is done.
JP 2001-153597 A JP 2002-340499 A JP 2001-90467 A

However, even if the scattered object shielding body of Patent Document 3 is applied to the landmine processing machine of Patent Document 1 and the landmine processing machine of Patent Document 2, the impact caused by the explosion of the landmine is impacted by the crushing operation of the chisel. Since it is much larger than, there are the following problems.
That is, in the configuration in which the crushing tool of Patent Document 1 and the rotating drum of Patent Document 2 are surrounded by a plurality of string-like scattered object shields suspended from above, each string-like scattered object shield is caused by the impact of a landmine explosion. Jumps outward, the string-like scattered object shields rise from the ground, or the space between the string-like scattered object shields spreads, and there is a possibility that the scattering of mine fragments may not be sufficiently suppressed.

In addition, the configuration in which the crushing tool of Patent Document 1 and the rotating drum of Patent Document 2 are surrounded by a cylindrical bellows-like scattered shield cannot release the impact of the mine explosion, and the bellows-like scattered shield is damaged. It is not realistic.
The present invention was devised in view of such problems, and can effectively suppress scattering of mine fragments that exploded during mine treatment to the surroundings and improve durability against mine explosions. An object of the present invention is to provide a landmine disposal device and a landmine disposal device cover.

In order to achieve the above object, a safety cover for a mine treatment apparatus according to the present invention according to claim 1 is a cover for a mine treatment apparatus that is attached to a mine treatment tool of a mine treatment apparatus. A cover main body that covers at least the upper part, a metal string-like member that is attached to the cover main body and hangs from the cover main body and surrounds the front, rear, left, and right sides of the mine disposal tool, and a metal that connects the string-like members And a connecting member.

According to a second aspect of the present invention, the safety cover of the landmine disposal apparatus of the present invention is characterized in that in the cover of the landmine disposal apparatus according to the first aspect, the string-like member is a chain.
The connecting member is, for example, a chain or a wire.
A landmine disposal device according to a third aspect of the present invention comprises a landmine disposal tool used in a grounded state for groundwater landmine disposal and the safety cover of the landmine disposal device according to the first or second aspect. It is characterized by being configured.

  A landmine disposal device according to a fourth aspect of the present invention is the landmine disposal device according to the third aspect, characterized in that the landmine disposal tool is of an excavation type for excavating the ground.

According to the present invention, the mine disposal device cover attached to the mine disposal tool is attached to the cover body, which covers at least the mine disposal tool, and is suspended from the front and back of the mine disposal tool. Since it is composed of a plurality of metal string-like members that surround the left and right, and a metal connection member that connects the string-like members, when a landmine explodes during landmine disposal, the string-like member Since it becomes possible to suppress spreading by connecting the connecting members, there is an advantage that the string-like member can effectively suppress scattering of the mine fragments to the periphery.

  Moreover, since it is reinforced by the connecting member, there is an advantage that durability of the string-like member against explosion of landmines can be improved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 are diagrams relating to a mine disposal device cover according to the present invention, and FIG. 1 is a diagram showing a configuration of the mine disposal device cover, wherein (a) is a schematic perspective view seen from obliquely above. FIGS. 2A and 2B are detailed views of a portion X in FIG. 2A, FIG. 2 is a diagram showing a configuration of a landmine disposal device, and FIG. 2A is a schematic rear view (viewed from the cabin side); ) Is a schematic side view thereof, FIGS. 3 (a) and 3 (b) are schematic side views of the land mine disposal device for explaining the effects of the mine disposal device cover, and FIG. 4 is a header of the land mine disposal device. FIG. 5 is a schematic side view showing the overall configuration of the mine disposal machine.

2, 3 and 5, chains 81 and 82 which will be described later are simplified and shown by chain lines, and in FIGS. 2 (b), 3 (a) and 3 (b), the chains 81, 82 are shown. 82 is partially omitted.
First, the overall configuration of a landmine processing machine using a landmine disposal device and a landmine disposal device cover as an embodiment of the present invention will be described with reference to FIG.

The landmine disposal machine 1 includes a lower traveling body 2, an upper revolving body 3 having a cabin 3 a and disposed on the upper side of the lower traveling body 2, a work provided on the upper revolving body 3 and performing various operations. The apparatus 4 is configured.
The working device 4 includes a boom 5 whose base end is connected to the upper swing body 3 so as to be swingable up and down, an arm 6 connected to the tip of the boom 5 so as to swing back and forth, and a tip of the arm 6. A twin header (land mine disposal device) 7 that is connected to be swingable back and forth, and a boom cylinder 9, an arm cylinder 10 and a header cylinder 11 for operating the boom 5, arm 6 and twin header 7. Has been.

  The twin header 7 is provided with a pair of left and right brackets 71a, 71a. Each of the brackets 71a is pivotally supported at one end of the connecting link 22 and its rear portion is an arm. 6 is pivotally supported at the tip of 6. The other end of the connecting link 22 is pivotally supported by the tip of the header cylinder 11, and the tip of the header cylinder 11 and the tip of the arm 6 are connected via a pair of left and right links 23. Are connected. With such a configuration, the twin header 7 is configured to swing in the front-rear direction around the tip of the arm 6 based on the expansion and contraction operation of the header cylinder 11.

As shown in FIG. 2, the twin header 7 has two headers (minemine tools) 70 as indicated by its name. These headers 70, a base member 71, and a cover (cover for a landmine treatment device). , Hereinafter referred to as a header cover) 8.
The base member 71 has the headers 70 and 70 rotatably attached to the left and right sides thereof, and a hydraulic motor 72 that rotationally drives the headers 70 and 70. The bracket 71a is erected on the side of the base member 71 where the header body 70 is not attached.

The header cover 8 is disposed on the header 70 side of the base member 71 and covers the front, rear, right and left of the two headers 70 and 70 and the base member 71 side.
As shown in FIGS. 1 and 2, the header cover 8 includes a cover body 80 and chains 81 and 82. The cover body 80 includes a ceiling wall 80 a fixed to the base member 71, A pair of curved front walls 80b and rear walls 80c facing the circumferential surface of the header body 70a, and a pair of left and right substantially semicircular sidewalls 80d facing the side surfaces (surfaces intersecting the cylindrical center line) of the header body 70a, 80e.

  In the vicinity of the opening edge of the cover body 80 (that is, the edges of the front and rear walls 80b and 80c and the side walls 80d and 80e), a plurality of chains (string members connecting metal rings) 81 are provided over the entire circumference. It is attached at an appropriate interval. One end of each chain 81 is fixed to the cover main body 80, and the chain 81 hangs down from the cover main body 80 in the operating posture of the twin header 7 with the cover main body 80 facing upward and the header 70 facing downward.

The length of the chain 81 is set so that the lower end of the chain 81 is in the vicinity of the lowermost portion of the header 70 (here, slightly higher than the lowermost portion) in the operating posture of the twin header 7. .
With such a setting, when the bit 70b and the blade 70c of the header 70 are digged into the ground to excavate and crush and detonate the landmine, the lower end of the chain 81 is grounded substantially constant. . In other words, the length of the chain 81 is set so that the lower end is grounded when performing landmine treatment.

Further, as shown in FIGS. 3A and 3B, the positional relationship between the cover body 80 and the ground varies depending on how the header 70 is dug, but this variation is absorbed by the chain 81 being folded. Therefore, the front and rear, left and right of the header 70 can be surrounded by the chain 81 without leaving a gap with respect to the ground.
These chains 81 are connected horizontally by the chain 82. The method of connection by the chain 82 is the same for the front and rear walls 80b and 80c, and the same for the left and right side walls 80d and 80e. Therefore, the front wall 80b and the right side wall 80d will be described again with reference to FIG.

  A single chain 82b is connected in a horizontal posture to the upper and lower central portions of each chain 81b attached to the front wall 80b (the central portion of each chain 81b is connected by one chain 82b), and each chain Another chain 82b is connected in a horizontal posture to the distal end side (free end side) of 81b (the distal end side of each chain 81b is connected by one chain 82b).

  The chain 81 of the right side wall 80d is connected at its center and tip side by a chain 82, but as shown in FIG. 1, the cover body 80 is divided into two parts at the front and rear in this case. The part cover main body 80-1 and the rear cover main body 80-2 are configured by flange connection. For this reason, each chain 81d-1 attached to the right side wall 80d-1 of the rear cover body 80-1 is connected to the upper and lower centers by one chain 82d-1, and the other end is connected to the other end of the chain 81d-1. 82d-1. Similarly, each chain 81d-2 attached to the right side wall 80d-2 of the front cover body 80-2 is connected to the upper and lower centers by one chain 82d-2, and the other end is connected to the other end. They are connected by a chain 82d-2.

  Also, the chain 81 suspended from the cover body 80 and the chain 82 that horizontally connects the chain 81 are assembled with the outer peripheral surface of the ring constituting the chain 81 (81b) as shown in FIG. The outer circumferential surface of the ring constituting the chain 82 (82b) is welded as indicated by the symbol w. The construction in which the chain 81 and the chain 82 are welded and assembled in this way is easy to construct, and if the same specifications are used for the chain 81 and the chain 82, the structure using only the chain 81 is used. Compared to this, the number of parts does not increase.

  For example, a wire may be used for connecting the chain 81 instead of the chain (the connecting member is not limited to the chain, and a wire may be used as the connecting member). The chain 81 can be connected by being inserted. According to this configuration, when the wire is caught by something and cut, for example, the wire can be easily exchanged.

  As shown in FIG. 4, each header 70 includes a substantially cylindrical header body 70a connected to the hydraulic motor 72, a plurality of bits 70b protruding from the header body 70a, and a blade 70c. It is configured. The bits 70b are spirally arranged on the circumferential surface of the header body 70a, and the blade 70c is projected on the circumferential surface of the header body 70a so as to connect the spirally arranged bits 70b to each other. ing. In FIG. 2A, the bit 70b and the blade 70c are omitted.

Since the twin header and the header cover according to the embodiment of the present invention are configured as described above, when the land mine explodes on contact with the header 70 during the land mine treatment, the surroundings of the mine fragments (scattered matter) It becomes possible to effectively suppress scattering.
That is, if a land mine explodes inside the cover 8, a large force such as an impact of an explosion or a collision with scattered objects, such as jumping the chain 81 suspended from the cover body 80 outward, acts. If the chain 81 is bounced outward, a gap is generated between the chain 81 and the ground, or a gap between the chains 81 spreads. As a result, mine fragments and the like are scattered around. Since 81 is connected by the chain 82, the jumping to the outside of the chain 81 is suppressed, and scattering of landmine debris to the surroundings can be effectively prevented.

In addition, scattered objects such as mine fragments collide with the cover body 80 and the chain 81 that hangs down from the cover body 80, and also the chain 82 that connects the chains 81 (because the collision area increases). Even in this respect, it is possible to further suppress the scattering of landmine fragments to the surroundings.
Furthermore, since the chain 81 is reinforced by the chain 82, the durability of the header cover 8 can be improved.

  The impact of landmine explosions escapes between each of the chains 81 and 82 and through the inside of the metal rings constituting the chains 81 and 82, and is absorbed by the folding of the chains 81 and 82c. .

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, the chain 82 is connected to the chain 81 in two rows up and down to connect the chain 81, but the method of attaching the chain 82 is not limited to this. For example, the chain 81 may be attached so that two chains 82 (or wires) are crossed.
In the above embodiment, for example, the plurality of chains 81b attached to the front wall 80b of the cover body 80 are connected together by the chain 82b, and the plurality of chains 81c attached to the rear wall 80c are connected together by the chain 82c. A plurality of chains 81d-1 that are connected together and attached to the side wall 80d-1 of the rear cover body 80-1 are connected together by a chain 82d-1, but the range that is connected by the chain (connecting member) 82 is as follows. For example, all the chains 82 attached to the front wall and both side walls of the rear cover main body 80-1 may be connected together.

  Moreover, in this embodiment, although the example which used the twin header which is a cutting tool as a mine disposal apparatus was demonstrated, the mine disposal apparatus cover of this invention is not limited to the mine disposal apparatus for cutting, Applicable to landmine disposal tools that are used in contact with the ground, such as pressure-type landmine disposal equipment that applies blasting to underground landmines from the surface. it can.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the structure of the cover for landmine disposal apparatuses of one Embodiment of this invention, (a) is a typical perspective view seen from the diagonally upper direction, (b) is detail drawing of the X section of (a). . It is a figure which shows the structure of the landmine processing machine concerning one Embodiment of this invention, Comprising: (a) is the typical rear view, (b) is the typical side view. (A), (b) is a typical side view of a landmine disposal device for explaining the operation effect of the cover for landmine disposal device as one embodiment of the present invention. It is a typical perspective view which shows the structure of the header of the landmine processing apparatus concerning one Embodiment of this invention. 1 is a schematic side view showing an overall configuration of a landmine disposal machine as an embodiment of the present invention.

Explanation of symbols

7 Twin header (Mine disposal equipment)
8 Header cover (cover for landmine disposal equipment)
70 Header (Mine disposal equipment)
80 Cover body 81, 81b to 81e Chain (string member)
82, 82b to 82e Chain (connection member)

Claims (4)

A mine disposal device cover that is attached to a mine disposal device of a mine disposal device,
A cover main body covering at least the upper part of the landmine disposal tool;
A plurality of metal string-like members attached to the cover body and hanging from the cover body to surround the front, back, left and right of the mine disposal tool;
A mine disposal apparatus cover comprising a metal connecting member for connecting the string-like members.   The landmine disposal device cover according to claim 1, wherein the string-like member is a chain. A mine disposal tool used for ground mine disposal in a grounded state,
A landmine treatment device comprising the landmine treatment device cover according to claim 1 or 2.   4. The mine treatment apparatus according to claim 3, wherein the mine treatment tool is of an excavation type for excavating the ground.

Images