JP6888504B2 - Construction machinery rescue system and traction machinery - Google Patents

Description

The present disclosure relates to construction machinery rescue systems, construction machinery rescue methods, and traction machinery.

Patent Document 1 below discloses a construction machine operated by wireless remote control. Such construction machinery is assumed to be used, for example, in a dangerous site where it is judged that there is a risk of a secondary disaster in the boarding operation of construction machinery by humans in recovery measures after a disaster occurs.

Japanese Unexamined Patent Publication No. 2002-227251

In recent years, water disasters (landslides, debris flows, floods, etc.) due to torrential rains have frequently occurred, and work in flooded areas of construction machinery is required. However, if the construction machine does not operate normally in the flooded area (for example, if it gets stuck), the person cannot risk the rescue and either abandon the aircraft or until the person can approach the aircraft. Had to wait for it to settle (for example, the water level would drop).

The present disclosure has been made in view of the above problems, and an object of the present disclosure is to rescue construction machinery stuck in a flooded area.

In order to solve the above problems, the construction machine rescue system of the present disclosure includes a construction machine having a vehicle body capable of entering a flooded area and a traction rescue machine having an engaging portion capable of engaging with the vehicle body. Have.

Further, in the rescue system of the construction machine of the present disclosure, the engaging portion may be able to engage with the rear portion of the vehicle body.

Further, in the rescue system of the construction machine of the present disclosure, the vehicle body has a movable portion and a non-movable portion, and the engaged portion with which the engaging portion can be engaged is engaged with the non-movable portion. May be provided.

Further, in the rescue system of the construction machine of the present disclosure, the engaged portion is a beam portion extending in the left-right direction of the vehicle body, and the engaging portion is the front and rear of the vehicle body with respect to the beam portion. It may be a hook portion that is hooked in the direction.

Further, in the rescue system of the construction machine of the present disclosure, the engaging portion has an engaging groove with which the engaged portion can be engaged, and a tapered portion is formed at the opening of the engaging groove. It may have been done.

Further, in the rescue system of the construction machine of the present disclosure, the track for driving the vehicle body may be provided.

Further, the method of relieving a construction machine of the present disclosure is a method of relieving a construction machine that can enter an inundated area, and engages an engaging portion of the traction rescue machine with a vehicle body that can enter the inundated area of the construction machine. By combining and pulling the vehicle body through the engaging portion, the construction machine is rescued from the flooded area.

Further, the traction machine of the construction machine of the present disclosure is attached to a movable body, an arm attached to the machine and rotatable in the vertical direction, and attached to the tip of the arm so as to be rotatable with respect to the arm. The engaging portion is provided with a groove portion extending to the end face of the engaging portion in a direction intersecting the rotation direction of the engaging portion.

According to the present disclosure, construction machinery stuck in a flooded area can be rescued.

It is a side view of the unmanned construction machine which concerns on one Embodiment of this disclosure. It is a rear view of the unmanned construction machine which concerns on one Embodiment of this disclosure. It is a side view which shows the main part of the traction rescue machine which concerns on one Embodiment of this disclosure. It is a perspective view which shows the engaging jig provided in the traction rescue machine which concerns on one Embodiment of this disclosure. It is explanatory drawing of the operation of the rescue system of the unmanned construction machine which concerns on one Embodiment of this disclosure. It is a perspective view which shows the engaging jig provided in the traction rescue machine which concerns on another Embodiment of this disclosure.

Hereinafter, the construction machine rescue system, the construction machine rescue method, and one embodiment of the traction machine of the present disclosure will be described with reference to the drawings. In the following description, an unmanned construction machine that operates by remote control will be illustrated as a construction machine.

FIG. 1 is a side view of the unmanned construction machine 1 according to the embodiment of the present disclosure. FIG. 2 is a rear view of the unmanned construction machine 1 according to the embodiment of the present disclosure.
As shown in FIGS. 1 and 2, the unmanned construction machine 1 has a vehicle body 2 and a remote control device 3 attached to the vehicle body 2. The remote control device 3 wirelessly remotely controls the operation of the vehicle body 2, and is detachably installed on the roof of the cab 11 which is the driver's cab of the vehicle body 2.

The remote control device 3 has a wireless antenna, receives radio waves (remote control waves) transmitted from an external remote control device, and receives radio waves (control state waves) from the remote control device 3 to the external remote control device. To send. The remote control wave includes a control command for the remote control device 3 as information. Further, the control state wave includes information indicating the control state of the vehicle body 2 by the remote control device 3. The remote control device 3 causes the vehicle body 2 to perform a desired operation by transmitting and receiving such a remote control wave and a control state wave to and from an external remote control device.

The vehicle body 2 of the present disclosure is a dump truck that works in a flooded area, and enters the flooded area by a track 12. The target machine of the unmanned construction machine 1 may be, for example, a shovel car, a bulldozer, a crane car, or the like. The vehicle body 2 has a traveling body 10 traveling by the track band 12 and a rear dump type loading platform 20 (movable portion) mounted on the traveling body 10. The loading platform 20 is tilted rearward of the vehicle body 2 with respect to the chassis frame 14 (non-movable portion) of the traveling body 10. That is, the arrangement relationship of the chassis frame 14 does not change with respect to the traveling body 10, and the arrangement relationship of the loading platform 20 changes.

As shown in FIG. 1, the traveling body 10 has a cab 11, a track 12, an engine room 13, and a chassis frame 14. The cab 11 is arranged at the front portion of the vehicle body 2. Inside the cab 11, operation devices such as operation buttons and operation levers are provided, and a driver's seat on which the driver sits is provided. The engine room 13 is arranged behind the cab 11. In the engine room 13, an engine for driving the track 12 and a hydraulic pump for supplying oil for tilting the loading platform 20 are arranged.

The track 12 is formed by shoes (tracks) connected in an endless band shape. As shown in FIG. 2, the crawler belts 12 are arranged in pairs on the left and right sides of the vehicle body 2, and are driven by a driving wheel mechanism 12a attached to the lower part of the chassis frame 14. The driving wheel mechanism 12a is driven by an engine arranged in the engine room 13 and causes a pair of left and right crawler belts 12 to run endlessly.

The chassis frame 14 is a steel material assembled in a frame shape, and as shown in FIG. 1, extends in the front-rear direction of the vehicle body 2. Further, as shown in FIG. 2, the chassis frame 14 is arranged inside the pair of crawler belts 12 in the left-right direction of the vehicle body 2. The chassis frame 14 supports a cab 11, an engine room 13, a loading platform 20, a hydraulic cylinder device (not shown) that lifts the loading platform 20, and the like. The hydraulic cylinder device is expanded and contracted by a hydraulic pump arranged in the engine room 13, and the loading platform 20 is tilted to the rear of the vehicle body 2.

As shown in FIG. 2, the rear portion of the chassis frame 14 is formed by a rear frame 17 (beam portion) extending in the left-right direction of the vehicle body 2. The rear frame 17 connects between a pair of left and right side frames (not shown) of the chassis frame 14. Projecting portions 15 and 16 projecting rearward of the vehicle body 2 are joined to the rear frame 17. The projecting portions 15 and 16 are provided with support shaft portions 18 and 19 that rotatably support the rear portion of the loading platform 20 around an axis extending in the left-right direction of the vehicle body 2.

The loading platform 20 has bearing portions 21 and 22, and a loading platform main body 23. The bearing portions 21 and 22 are provided in the lower part of the loading platform main body 23 and are supported by the support shaft portions 18 and 19. The loading platform main body 23 has a pair of left and right side plate portions 24, 25 and a tilt 26 arranged between the rear ends of the pair of side plate portions 24, 25. The tilt 26 of the present disclosure is a downward opening type that opens and closes around the upper end portion 26a thereof. Support plate portions 27, 28 that rotatably support the upper end portion 26a of the tilt 26 around the axis extending in the left-right direction of the vehicle body 2 are erected above the rear ends of the side plate portions 24, 25.

FIG. 3 is a side view showing a main part of the tow rescue machine 30 according to the embodiment of the present disclosure. FIG. 4 is a perspective view showing an engaging jig 40 included in the traction rescue machine 30 according to the embodiment of the present disclosure.
As shown in FIG. 3, the traction rescue machine 30 (traction machine) is a general-purpose construction machine (backhoe in the present disclosure), and is an engaging jig 40 (engagement) capable of engaging with the vehicle body 2 of the unmanned construction machine 1. Has a joint). The engaging jig 40 is attached to the tip of an arm 31 that is operated by flood control. The arm 31 is attached to an airframe (not shown) that can travel, and is rotatable in the vertical direction.

The arm 31 has a bucket mounting portion 32. The bucket mounting portion 32 has a bucket pin 34 that rotatably supports the bucket 33, and a bucket link pin 35 that rotates the bucket 33 around the bucket pin 34. The bucket link pin 35 is connected to the bucket link 36, and the bucket link 36 is connected to the tip end portion of the bucket cylinder 38 together with the idler link 37 rotatably connected to the arm 31.

The engaging jig 40 has a replacement portion 41 that can be replaced with the bucket mounting portion 32 of the arm 31. As shown in FIG. 4, the replacement portion 41 has a first insertion hole 42 into which the bucket pin 34 can be inserted and a second insertion hole 43 into which the bucket link pin 35 can be inserted. The replacement portion 41 is formed in the shape of a flat plate rod extending in a straight line, and a hook portion 44 is integrally provided at the tip of the replacement portion 41. The hook portion 44 has an engaging groove 45 (groove portion) to which the rear frame 17 (engaged portion) of the unmanned construction machine 1 can be engaged. The engagement groove 45 extends to the end surface of the engagement jig 40 in a direction intersecting the rotation direction of the engagement jig 40 (for example, in the present disclosure, the direction perpendicular to the paper surface in FIG. 3). The engaging groove 45 is formed in a U shape in a side view, and both ends in the extending direction are open.

As shown in FIG. 4, the hook portion 44 forms the bottom surface of the engaging groove 45 between the pair of wall portions 46, 47 forming the front and rear wall surfaces of the engaging groove 45 and the pair of wall portions 46, 47. It has a bottom wall portion 48 and a bottom wall portion 48. According to such a hook portion 44, the unmanned construction machine 1 can be pushed as well as pulled. The upper surface of the hook portion 44 (the top surface of the pair of wall portions 46, 47) is a flat surface continuous with the upper surface of the replacement portion 41. The hook portion 44 has a larger left-right width than the replacement portion 41 and extends to both sides in the left-right direction of the replacement portion 41.

Next, the operation of the rescue system 100 of the unmanned construction machine 1 of the present disclosure (relief method of the construction machine) will be described with reference to FIG.
FIG. 5 is an explanatory diagram of the operation of the rescue system 100 of the unmanned construction machine 1 according to the embodiment of the present disclosure. In these figures, reference numeral F1 indicates rough terrain (bottom surface) in the flooded area, and reference numeral F2 indicates the water surface in the flooded area.

The unmanned construction machine 1 has a vehicle body 2 that can enter the flooded area. The vehicle body 2 is a dump truck that travels on the track 12, and can enter even on rough terrain F1 in a flooded area. The unmanned construction machine 1 transports earth and sand, rocks, etc. excavated by another construction machine such as a backhoe while at least a part of the vehicle body 2 is submerged below the water surface F2 in the flooded area. As described above, the unmanned construction machine 1 is configured to be capable of transporting in semi-water by an external remote control device (not shown).

When such an unmanned construction machine 1 does not operate normally in a flooded area (for example, when it is stuck), the engaging jig 40 of the traction rescue machine 30 is engaged with the vehicle body 2, and the engaging jig 40 is engaged. By pulling the vehicle body 2 through the above, the unmanned construction machine 1 is rescued from the flooded area. That is, as shown in FIG. 5A, when the engaging jig 40 is inserted into the lower part of the vehicle body 2 by the traction rescue machine 30, lifted slightly upward, and then pulled to the rear of the vehicle body 2, the engagement jig 40 is engaged. The rear frame 17 of the vehicle body 2 engages with the joint groove 45.

The rear frame 17 of the vehicle body 2 extends in the left-right direction of the vehicle body 2, and even if the engagement jig 40 is slightly displaced in the left-right direction with respect to the vehicle body 2, the vehicle body 2 and the engagement jig Engagement with 40 is possible. Therefore, even if at least a part of the vehicle body 2 is immersed in the water surface F2 or less and the visibility is poor, the engaging jig 40 can be engaged with the vehicle body 2. Further, since the rear frame 17 of the vehicle body 2 is a part of the chassis frame 14 which is a non-movable portion, the positional relationship does not change. Therefore, as shown in FIG. 5B, the vehicle body 2 can be moved by the towing of the towing rescue machine 30.

The towing rescue machine 30 used for towing may be a general-purpose construction machine (backhoe) as long as it has sufficient weight and traction force to tow the unmanned construction machine 1. As shown in the present disclosure, if the traction rescue machine 30 is a backhoe, as shown in FIG. 3, it is only necessary to replace the normal bucket 33 with the traction engagement jig 40, which is a large scale for a general-purpose construction machine. No modification required. Further, the backhoe bucket 33 has a common standardized structure, and the engaging jig 40 can use the standard, so that it is not necessary to devise a shape from scratch.

Further, since the replacement work of the backhoe bucket 33 is not special and can be performed by anyone involved in the backhoe operation, the connecting shape of the replacement portion 41 of the engaging jig 40 is the same as that of the bucket 33. As a result, the replacement work from the bucket 33 to the engaging jig 40 can be smoothly performed. Further, since the engaging jig 40 can be moved back and forth by the backhoe operation as in the bucket 33, the operation of hooking the hook portion 44 on the vehicle body 2 of the unmanned construction machine 1 is special for a person involved in backhoe operation. It has the advantage of not requiring training.

Since the traction point of the traction rescue machine 30 is set at the rear portion of the vehicle body 2, it becomes easy to hook the engaging jig 40 on the vehicle body 2. For example, when the tow point is set to the front part of the vehicle body 2, the tow rescue machine 30 operates the tow rescue machine 30 so as not to damage the cab 11 and the remote control device 3 on the roof of the cab 11. (Manual control or remote control) must be performed, and the operator is required to have skill. On the other hand, in the rear part of the vehicle body 2, there is little problem even if the engaging jig 40 hits the loading platform 20 a little. Further, since the towing point is set on the vehicle body 2 at the lower part of the loading platform 20, it does not interfere with the normal loading / unloading operation.

As described above, according to the above-mentioned disclosure, when the unmanned construction machine 1 is stuck in the flooded area, the unmanned construction machine 1 does not have to risk a person tying a tow string to the unmanned construction machine 1. Can be rescued from flooded areas.

The present disclosure is not limited to the above embodiment, and for example, the following modifications can be considered.

(1) For example, as shown in FIG. 6, a tapered portion 49 may be formed on the engaging jig 40. The tapered portion 49 is formed in the opening of the engaging groove 45, the entrance of the engaging groove 45 can be widened, and the rear frame 17 can be easily attracted to the engaging groove 45.

(2) Further, for example, the shape of the engaging jig 40 may be any shape as long as it can be engaged with the vehicle body 2 and is not damaged by the traction of the vehicle body 2. For example, the shape of the hook portion 44 may be L-shaped when viewed from the side.

(3) Further, in the above embodiment, the traction rescue machine 30 has the rear portion of the vehicle body 2 as the traction point, but the front portion of the vehicle body 2 may be the traction point.

(4) Further, in the above embodiment, the traction rescue machine 30 is a general-purpose construction machine in which the bucket 33 is replaced with the engaging jig 40, but the engaging jig 40 is permanently installed as a rescue-dedicated construction machine. It may be.

1 Unmanned construction machinery (construction machinery)
2 Body (non-movable part)
12 Track 17 Rear frame (beam)
20 Loading platform (moving part)
30 Traction rescue machine (traction machine)
31 Arm 40 Engagement jig (engagement part)
44 Hook part 45 Engagement groove (groove part)
49 Tapered part 100 Relief system for unmanned construction machinery (Relief system for construction machinery)

Claims (7)

A construction machine equipped with a car body that can enter the flooded area,
Have a, a traction relief machine comprising an engaging engagement portion on the vehicle body,
The engaging portion includes a replacement portion attached to the tip of the arm.
The arm includes a bucket mounting portion having a bucket pin that rotatably supports the bucket and a bucket link pin that rotates the bucket around the bucket pin.
The bucket link pin is connected to the bucket link and
The bucket link is connected to the tip of the bucket cylinder together with an idler link rotatably connected to the arm.
The replacement portion has a first insertion hole into which the bucket pin can be inserted and a second insertion hole into which the bucket link pin can be inserted, and a hook portion is integrally provided at the tip of the replacement portion to rescue a construction machine. system. The rescue system for construction machinery according to claim 1, wherein the engaging portion is engageable with the rear portion of the vehicle body. The vehicle body has a movable portion and a non-movable portion.
The rescue system for a construction machine according to claim 1 or 2, wherein the non-movable portion is provided with an engaged portion to which the engaging portion can be engaged. The engaged portion is a beam portion extending in the left-right direction of the vehicle body.
The engagement portion, with respect to the beam portion, hooking the hook in the longitudinal direction of the vehicle body, the construction machine rescue system according to claim 3. The engaging portion has an engaging groove into which the engaged portion can be engaged.
The rescue system for construction machinery according to claim 3 or 4, wherein a tapered portion is formed in the opening of the engaging groove. The rescue system for a construction machine according to any one of claims 1 to 5, which has a track for driving the vehicle body. Aircraft that can run and
An arm that is attached to the aircraft and can rotate in the vertical direction,
It has an engaging portion that is attached to the tip of the arm and is rotatable with respect to the arm, and the engaging portion includes a replacement portion that is attached to the tip of the arm.
The arm includes a bucket mounting portion having a bucket pin that rotatably supports the bucket and a bucket link pin that rotates the bucket around the bucket pin.
The bucket link pin is connected to the bucket link and
The bucket link is connected to the tip of the bucket cylinder together with an idler link rotatably connected to the arm.
The replacement portion is a towing machine having a first insertion hole into which the bucket pin can be inserted and a second insertion hole into which the bucket link pin can be inserted, and a hook portion is integrally provided at the tip thereof.

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