JP3039805U - Cutter equipment - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] A compact cutter device that does not need to wet the road surface with cooling water, does not scatter dust or the like, and does not need to be carried into the site such as a large roll cutter device that cuts the road surface. I will provide a. SOLUTION: A disk-shaped cutter 3, a bracket portion 4 rotatably supporting the cutter 3, and a bracket 17 formed on the bracket portion 4 and replaced with a bucket 17 of the heavy construction machine 1 for exchanging the heavy construction machine 1 for civil engineering. Two sets of attachment parts 47 and 48 for attaching to the tip parts of the arm 14 and the link 16 are provided.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a cutter device used for cutting a paved road surface or the like.

[0002]

[Prior art]

 In the construction of underground pipes such as water pipes and gas pipes, a method is generally used in which the paved road surface is cut with a large roll cutter device having a power source and a drive source, and then excavated with heavy machinery for civil engineering for excavation. It has been taken.

[0003]

[Problems to be solved by the device]

 However, according to the conventional method, it is necessary to bring in heavy equipment for excavating soil to the work site together with equipment such as a roll cutter for cutting the road surface, which is a large scale. Since this roll cutter device cuts the road surface by rotating the disc-shaped cutter at high speed, it is necessary to wet the road surface with cooling water, and in addition, dust etc. scatter during construction, which deteriorates the construction environment. Had problems such as.

The present invention solves the above-mentioned problems. It is not necessary to wet the road surface with cooling water, dust and the like do not scatter, and it is necessary to carry it to the site such as a large roll cutter device for cutting the road surface. An object of the present invention is to provide a miniaturized cutter device that does not.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the gist of the present invention according to claim 1 is to provide a disk-shaped cutter, a bracket portion that rotatably supports the cutter, and a cutter device that is formed on the bracket portion and is used for a heavy machinery for civil engineering. A cutter device, comprising: two sets of attachment parts for replacing with buckets and attached to the arms of the heavy machinery for civil engineering and the tips of the links. Here, "heavy machinery for civil engineering" refers to a vehicle in which a bucket can be attached to the tip of an arm for excavation, and examples thereof include a hydraulic excavator and a shovel loader. A cutter device according to a second aspect of the present invention is the cutter device according to the first aspect, wherein the bracket portion includes a pair of support plates facing each other and a connecting portion connecting and fixing the pair of support plates to each other. It is characterized in that a support shaft of a cutter attached to the bracket portion is provided on the pair of support plates.

According to the first aspect of the present invention, when excavating, the cutter device is first attached to the arms and links of the heavy machinery for civil engineering by using the two sets of attachment parts of the bracket parts. Then, while pushing the cutter against the road surface by the boom force of the heavy machinery for civil engineering, the cutter is rotated while swinging the arm while cutting the road surface. At this time, since a large cutting force from the boom is applied to the cutter, the road surface can be cut without rotating the cutter at high speed. After cutting the road surface, the cutter device is removed, a bucket is attached to the tip of the arm and the link, and the bucket is used for excavation. When the support plate and the connecting portion are provided as in the invention according to the second aspect, the cutter can be rotated and the exchanging with the bucket of the heavy machinery for civil engineering proceeds smoothly.

[0007]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described in detail. 1 to 4 show one embodiment of the present invention, FIG. 1 is a perspective view showing a state in which a cutter device is attached to a hydraulic excavator (heavy machinery for civil engineering), and FIG. 2 is a bucket instead of the cutter device. FIG. 3 is a perspective view of a hydraulic shovel to which is attached.

First, prior to the description of the cutter device of the present invention, the hydraulic excavator 1 of FIG. 2 will be described. In the figure, a hydraulic excavator 1 as a heavy machinery for civil engineering has a well-known structure, and a revolving structure 12 is attached to a traveling frame 10 via a turntable 11. A boom 13 is rotatably attached to the swivel body 12 along a vertical plane, and an arm 14 is rotatably attached to the tip of the boom 13 along the vertical plane. . A second link 16 is attached near the tip of the arm 14 via a first link 15, and a first attachment shaft 18 and a second attachment shaft 19 are attached to the tips of the second link 16 and the arm 14. The bucket 17 is attached via the. The arm 14, the first link 15, the second link 16 and the bucket 17 constitute a four-bar rotary chain, and the bucket cylinder 20 expands and contracts, so that the bucket 17 is attached to the arm 14 by the second attachment. It rotates about the shaft 19. The boom 13 and the arm 14 rotate by the boom cylinder 21 and the arm cylinder 22 expanding and contracting, respectively.

FIG. 3 is a side view of the cutter device, and FIG. 4 is a partially sectional front view of the cutter device attached to the hydraulic excavator. In FIG. 3, the cutter device 2 has a disk-shaped cutter 3 and a bracket portion 4 that rotatably supports a support shaft 40 to which the cutter 3 is fixed, as will be described later. The structure is such that the bucket 17 of FIG. 2 can be removed and attached to the hydraulic excavator 1 as shown in FIG.

The bracket portion 4 has a frame composed of a pair of support plates 41, 41 facing each other and a plate-shaped connecting portion 42 for connecting and fixing the pair of support plates 41, 41 to each other. ing. A support shaft 40 is rotatably supported by the pair of support plates 41, 41 via a bearing 43 shown in FIG. The cutter 3 is fixed to the supporting shaft 40 via a fixing device 44. A retaining collar 45 is fixed to both ends of the support shaft 40 by retaining screws 46.

As shown in FIG. 3, a pipe-shaped mounting boss for forming a first mounting hole (mounting part) 47 and a second mounting hole (mounting part) 48 in each support plate 41 of the bracket part 4. 49,50 are welded. The first and second mounting holes 47, 48 are for replacing the cutter device 2 with the bucket 17 of the hydraulic excavator 1 of FIG. 2 and for mounting it on the arm 14 and the tip end of the second link 16 of the hydraulic excavator 1. belongs to.

The second link 16 of FIG. 4 is formed by welding a pipe 16b between a pair of plate-shaped link members 16a. The second link 16 and the bracket portion 4 are connected by a first mounting shaft 18 so as to be relatively rotatable. That is, the first mounting shaft 18 penetrates the second link 16 and the first mounting hole 47, and both ends thereof are fixed to the mounting boss 49 by the setscrews 51, 51. Although not shown in detail, the bracket portion 4 is rotatably attached to the distal end portion of the arm 14 in FIG. 1 via the second attachment shaft 19 by a structure similar to this.

Next, how to use the cutter device 2 will be described. First, as shown in FIG. 1, the cutter device 2 is attached to the hydraulic excavator 1. By operating the boom 13, while pushing the cutter 3 against the road surface, the arm 14 is swung to move the cutter 3 on the road surface while rotating the cutter 3. The hydraulic excavator 1 may be moved together with or independently of the swing of the arm 14 so that the cutter 3 is rotationally moved on the road surface. This cuts the road surface. At this time, a large cutting force from the boom 13 is applied to the cutter 3, so that the road surface can be cut without rotating the cutter 3 at a high speed. Therefore, no cooling water is required and the cutter does not rotate at high speed as in the past, so dust does not scatter. Further, since the boom 13 and the arm 14 of the hydraulic excavator 1 are driven to generate a cutting force in the cutter 3, a separate power source or drive source for rotating the cutter 3 is not required. After cutting the road surface, the set screw 51 shown in FIG. 4 is loosened, the first and second mounting shafts 18 and 19 shown in FIG. 1 are removed, and the cutter device 2 is removed from the hydraulic excavator 1. Then, instead of the cutter device 2, as shown in FIG. 2, the bucket 17 is attached to the arm 14 and the tip portion of the second link 16. In this way, after mounting the bucket 17 on the hydraulic excavator 1, the bucket 17 is operated to excavate.

The cutter device configured as described above depends on the power source and drive source of a heavy-duty civil engineering machine such as a hydraulic excavator 1 that is carried into a construction site, so that the device itself is simple and compact. To be done. Since it can be replaced with the bucket of the heavy machinery for civil engineering and attached to the tip of the arm 13 and the link 14 of the heavy machinery for civil engineering, the pressing force on the cutter 3 is increased by the driving force of the boom and arm of the heavy machinery for civil engineering. Therefore, a large cutting force can be applied to the cutter 3. Therefore, the road surface can be cut without rotating the cutter 3 at a high speed, there is no risk of dust scattering, and no cooling water is required. Of course, since it is not necessary to bring in a large-scale roll cutter device to the site as in the conventional case together with a power source and a drive source, it is extremely useful because it does not require labor and cost such as water pipe construction and paved road surface construction.

The present invention is not limited to the one shown in the above embodiment, but can be variously modified within the scope of the present invention according to the purpose and application. The shape, size, number and the like of the heavy machinery for civil engineering 1, the cutter 3, the bracket portion 4, the support shaft 40, the support plate 41, the connecting portion 42, the attachment portions 47, 48, etc. can be appropriately selected according to the application. For example, in the above embodiment, the support shaft 40 is rotatably attached to the bracket portion 4 so that the cutter 3 is rotatable with respect to the bracket portion 4. However, the support shaft 40 is fixed to the bracket portion 4, and The cutter 3 may be rotatably attached to the holding shaft 40 via a bearing.

[0016]

[Effect of the invention]

 As described above, the cutter device of the present invention is a cutter device that can be rearranged and attached to the bucket of the heavy machinery for civil engineering, and its power source and drive source are downsized depending on the heavy machinery for civil engineering, and the structure is simplified. Moreover, by cutting the road surface by pressing the arms and booms of the heavy machinery for civil engineering against the cutter, it is possible to eliminate the trouble of wetting the road surface and the dust problem.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a hydraulic excavator to which a cutter device according to an embodiment of the present invention is attached.

FIG. 2 is a schematic perspective view showing a general hydraulic excavator.

FIG. 3 is a side view of a cutter device.

FIG. 4 is a partial cross-sectional front view of a cutter device attached to a hydraulic excavator.

[Explanation of symbols]

 1 Heavy machinery for civil engineering (hydraulic excavator) 2 Cutter device 3 Cutter 4 Bracket part 14 Arm 16 Second link (link) 40 Support shaft 41 Support plate 42 Connecting part 47 Attachment part (first mounting hole) 48 Attachment part ( (Second mounting hole)

Claims (2)

[Utility model registration claims] 1. A disk-shaped cutter (3), a bracket portion (4) for rotatably supporting the cutter, and a bracket formed on the bracket portion, which is replaced with a bucket of a heavy construction machine for civil engineering to replace the heavy machine for civil engineering. A cutter device comprising: two sets of attachment parts (47, 48) for attaching to the tip parts of the arm and the link. 2. The bracket portion (4) includes a pair of support plates (41, 41) facing each other and a connecting portion (42) connecting and fixing the pair of support plates to each other. The cutter device according to claim 1, wherein a support shaft of the cutter to be attached to the pair of support plates is installed on the pair of support plates.