JP3202820U - Self-propelled construction machinery - Google Patents

Abstract

To provide a self-propelled construction machine that can be assembled without using an assembly frame, which can increase the load-bearing capacity of a hook and can be finished when not in use so as not to be caught by foreign objects. A self-propelled construction machine in which a bucket 7 and a hook 9 are provided at a tip of a crane 2 and a link mechanism 10 is provided so that the bucket 7 can be turned forward. A pair of left and right mounting pieces 30 project from the front wall of the base end, and a drive link 34 by a hydraulic cylinder rod 35 is sandwiched between the lower end portions of the mounting pieces 30 and is pivotally supported by the connecting pins 36 on both mounting pieces 30. The drive link 34 has an H-shaped rib shape in which a horizontal piece 44 is provided between a pair of left and right side pieces 42, and the hook 9 has a cylindrical bearing member 58 that can rotate to the connecting pin 36. And is attached to the connecting pin 36 via a bearing member 58 so as to be able to be turned up so that the space between the two side pieces 42 can be filled as a storage port 56. [Selection] Figure 2

Description

  The present invention relates to a self-propelled construction machine such as a backhoe required for reconstruction work in a disaster-stricken area that is isolated due to a road being severed by a disaster such as an earthquake or heavy rain.

  In disasters such as earthquakes and rain, certain areas may become isolated islands on land as a result of the disruption of roads resulting in the disruption of transportation as infrastructure. In this case, disaster recovery is urgent, but even if it is desired to introduce a large self-propelled construction machine such as a backhoe suitable for the work, it cannot be carried in.

  Backhoes are the most useful force for urgent civil construction work for the reconstruction of stricken areas. A backhoe that also serves as a crane is a self-propelled construction machine that is generally called a hydraulic excavator, and is attached so that the bucket at the end of the arm can be scraped into the operator side (facing forward), and a wire is attached to the end of the arm. The crane hook to be obtained is attached, and a wire can be hung on the hook without being obstructed by the bucket, so that it is possible to lift heavy objects. However, in a disaster-stricken area, you encounter a scene where an unexpected lifting capacity is required, and if the hook is especially welded, there is a risk that it will fall off due to an impact due to the rigid mounting, and it also accompanies the disaster There is a problem that the hook is easily caught on the surrounding miscellaneous objects and the hook is detached to easily cause an accident.

  Regarding solving the problem of lifting capacity, the backhoe of the required capacity is divided into several units and loaded with a helicopter, while a crab crane that is relatively small and capable of assembling by lifting is also loaded simultaneously. The method of assembling the backhoe with a crab crane was taken. However, even in this case, depending on the backhoe, there are units such as a main frame that cannot be lifted by the crab crane, so the following work using a separate assembly stand for the installation has been adopted.

  That is, when a crab crane and a backhoe are carried in as a unit by a helicopter, the crab crane 20 is first assembled, and the target backhoe B (FIG. 1) is assembled using the crab crane 20 as shown in FIG. First, when the basic track frame 24 is assembled at a predetermined location, the heaviest main frame 26 is mounted on the track frame 24 in the next operation. It was necessary to use the gantry 25.

  FIG. 3 shows the procedure. The assembly frame 25 is assembled so as to cover both the track frame 24 and the main frame 26. As shown in FIG. 4, the main frame 26 is attached to the wire or pulley by the assembly frame 25. It was assembled by lifting it up, etc., and installing it in place. Thus, in the past, a great number of processes and costs were required, such as assembling the gantry, attaching wires and pulleys, lifting and installing the main frame 26 by workers using them, and dismantling the gantry. It was.

  The assembly frame 25 becomes unnecessary after the installation of the main frame 26 is completed. After this, the work such as attaching the engine and other members and units is performed, and the general work using the crab crane is performed. Therefore, the assembly base 25 is removed so as not to hinder the work.

  As mentioned above, in order to assemble a backhoe with a relatively large capacity that is necessary and intended in the affected area, assembling an oversized assembly base and then disassembling it to supplement the general capacity of crab cranes. The work was indispensable, and not only the cost of loading and unloading the material, but also the lack of urgency in terms of the number of workers and assembly time, and a great amount of expenses were required.

  In other words, in view of the above situation, this device can be used when not in use so as to increase the load-bearing capacity of the hook and prevent it from being caught by foreign objects. It is an issue to provide a self-propelled construction machine in an isolated disaster area that can be assembled without using an assembly stand when a self-propelled construction machine such as a large backhoe with the ability to be used is required It was.

  In order to solve the above-described problems, the present invention provides a self-propelled construction machine such as a backhoe in which a bucket and a hook are provided at the tip of a crane, and the bucket is equipped with a link mechanism so that the bucket can be turned forward. The mechanism has a pair of left and right mounting pieces projecting from the front wall of the base end of the bucket, and a drive link by the rod of the hydraulic cylinder is sandwiched between the lower ends of the mounting pieces and is pivotally supported by connecting pins on both mounting pieces. The drive link has an H-shaped rib shape in which a horizontal piece is provided between a pair of left and right side pieces and a vertically long space is provided under the horizontal piece, and the hook is a cylindrical bearing member Is rotatably supported by the connecting pin, and is attached to the connecting pin via a bearing member so as to be able to be turned up so that the space between the two side pieces can be put in as a storage port. Provide self-propelled construction machinery.

  According to the above configuration, since the hook is pivotally supported by the connecting pin of the drive link, the suspension ability is large, and the hook can be performed well so that it is not hindered when not in use. In order to obtain a self-propelled construction machine with the desired capacity while assembling large self-propelled construction machines in sequence, such as the next self-propelled construction machine with a construction-type construction machine, a conventional assembly stand is required. do not do.

  As explained above, according to this device, since it has an excellent function such as the ability to hang hooks, it is self-propelled such as a large backhoe that has the necessary and desired ability in isolated disaster areas. Can be assembled locally, emergency use of self-propelled construction machines in isolated stricken areas on land is possible, and by eliminating the use of assembly racks, personnel and expenses are greatly reduced There is an excellent effect that can be saved.

It is a perspective view of the backhoe which shows an example of the self-propelled construction machine concerning this device. It is an expansion perspective view which shows the bucket of the self-propelled construction machine. It is explanatory drawing of a prior art example. It is explanatory drawing of a prior art example.

  In the present invention, a crab crane or a backhoe is preferred as a self-propelled construction machine, but it is not necessarily limited to this as long as it can be used for assembly.

  The following is an example of a self-propelled construction machine for a power shovel that is urgently needed for reconstruction, assuming that an area has become an isolated island due to an earthquake, heavy rain, tsunami, etc. Assembly will be described.

  In isolated disaster-stricken areas, the disaster site is a dangerous area where secondary disasters may occur due to aftershocks, landslides, flash floods, etc. Made. The workers input here are composed of a crane operator and three assembly workers.

  As shown in FIG. 1, the backhoe B to be assembled here is equipped with a crane 2 including a base arm 3 and a tip arm 5 on a vehicle body 1 with a caterpillar, and a bucket 7 is placed on the operator side at the tip of the tip arm 5. It is attached in the direction of being raked in, and is provided with a link mechanism 10. Moreover, the crane hook 9 which hangs a wire is attached to the attachment location. Each of the power shovels is radio-controlled (radio control type), disassembled and assembled, and has a crane hook 9.

(1) In the helicopter, a set of units of a crab crane (total weight 2 t) is first transferred, and then a set of units of a small backhoe (total weight 2 t) is conveyed. Of these, crab cranes are often light-weighted, so they are assembled using ordinary tools. The backhoe is small but still has heavy components such as the main frame, so a crab crane is used for its installation. This completes the first backhoe with radio control.
(2) Next, the unit of the medium-sized backhoe No. 2 (2.8t), which is one rank higher than the helicopter, has been transported, and it is assembled by the same worker. However, for this assembly, the first assembled backhoe is used. The site is a landslide area, and in this case, the safety of assembly work is ensured by using radio control.
(3) Next, since a larger and more capable backhoe No. 3 unit is being sent, the backhoe No. 3 is assembled by using the backhoe No. 2 in combination with radio control. This completes the final assembly of the large disassembly type.

  Reconstruction work can be achieved by using the backhoe of Unit 1, Unit 2, Unit 3, and Unit 3, and difficult work can be easily achieved by using Unit 3 with high capacity.

  As for the drive link mechanism 10 of the bucket 7, a pair of left and right attachment pieces 30, 30 are projected from the proximal end portion of the bucket 7, and can be reversed by the pivot pin 32 by sandwiching the distal end portion of the crane 2 between the upper end portions thereof. Connected to In addition, a drive link 34 by a rod 35 of a hydraulic cylinder is connected to a lower end portion of the mounting pieces 30 by a drive pin 36 by being sandwiched between the lower end portions. And the hook 9 is pivotally supported by the drive pin 36 so that reversal is possible.

  The drive link 34 has a substantially H-shaped rib shape having a horizontal piece 44 between both side pieces 42, 42, and a relatively long space is provided as a storage port 56 of the hook 9 below the horizontal piece 44. Since the bearing member 58 of the hook 9 is fitted to the drive pin 36, the hook 9 can be reversed and stored in the storage port 46. 60 and 60 are pin insertion holes for holding the stored hook 9.

B Self-propelled construction machine (backhoe)
2 Crane 9 Hook 30 Mounting piece 34 Drive link 36 Connecting pin 42 Side piece 44 Horizontal piece 56 Storage port 58 Bearing member

Claims (2)

  In a self-propelled construction machine such as a backhoe, in which a bucket and a hook are provided at the tip of the crane and the bucket is reversible forward, the link mechanism has a pair of right and left on the front wall at the base end of the bucket. A mounting piece is protruded, and a drive link by a rod of a hydraulic cylinder is sandwiched between the mounting pieces at the lower end portion thereof and is pivotally supported by a connecting pin on both mounting pieces. The driving link is a pair of left and right side pieces. H-shaped rib shape having a horizontal piece between the two and having a vertically long space under the horizontal piece, the hook is rotatably supported by the connecting pin on the cylindrical bearing member, A self-propelled construction machine characterized in that it is attached to a connecting pin via a bearing member so as to be able to turn up so that the space between both side pieces can be put in as a storage port.   The self-propelled construction machine according to claim 1, comprising a plurality of units so as to be assembled at a site in a disaster area.

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