Sling working machine

Abstract

To provide a hanging work machine that can be easily aligned. 【Solution means】The hanging work machine 1 performs hanging by injecting high-pressure water from a high-pressure water nozzle 12 mounted on a moving body 11 having a self-propelling function. The hanging work machine 1 includes a holding frame 13 that holds the high-pressure water nozzle 12 so as to be movable in the left-right direction, a nozzle moving means 14 that moves the high-pressure water nozzle 12 in the left-right direction along the holding frame 13, a holding frame arranging means 15 that arranges the holding frame 13 so as to be movable in the left-right direction with respect to the moving body 11, and a holding frame moving means 16 that moves the holding frame 13 in the left-right direction.

Description

Technical Field

[0001] The present invention relates to a scraping work machine that performs scraping by injecting high-pressure water from a high-pressure water nozzle disposed on a moving body having a self-propelling function.

Background Art

[0002] In repair work of road bridges and the like, a method of removing a deteriorated portion of a concrete floor slab and placing new concrete is performed. Further, for example, when repairing (replacing) a joint portion of a floor slab, after crushing a concrete hardened body around the joint, new concrete is placed.

[0003] As a method of removing a deteriorated portion of a concrete structure, for example, there is a method of pulverizing by hitting the concrete using a breaker or the like. However, this method has a problem that noise such as the impact sound of the concrete is generated. Further, there is also a risk of affecting portions other than the damaged portion due to the impact. Therefore, in recent years, as a method of removing a deteriorated portion of a concrete structure, a water jet method of pulverizing by injecting high-pressure water has been used.

[0004] As an example of using such a water jet, there is known a scraping work machine that disposes a high-pressure water nozzle on a moving body having a self-propelling function and performs scraping by injecting high-pressure water while moving the high-pressure water nozzle in the left-right direction (see, for example, Patent Document 1). In such a scraping work machine, for example, high-pressure water is injected while moving the high-pressure water nozzle horizontally to crush the object to be scraped. When the crushing by one horizontal stroke is completed, the moving body is moved in the front-rear direction, and high-pressure water is injected again while moving the high-pressure water nozzle horizontally to crush the object to be scraped for the next one stroke. That is, the moving region of the high-pressure water nozzle is aligned with the end of the scraping target region, and the scraping work is performed while moving the moving body backward or forward.

[0005] Therefore, conventionally, when the stripping target area is laterally displaced in the middle of the longitudinal direction of the moving body, it is necessary to align the position by moving the moving body back and forth a plurality of times at the displaced position, which is a problem of being time-consuming. Also, even at the start of work, in order to accurately align the stripping target area and the moving area of the high-pressure water nozzle, it is necessary to move the moving body back and forth a plurality of times, which is a problem of being time-consuming.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] The present invention has been made based on such problems, and an object thereof is to provide a stripping working machine that can be easily aligned.

Means for Solving the Problems

[0008] The stripping working machine of the present invention sprays high-pressure water from a high-pressure water nozzle mounted on a moving body having a self-propelling function to perform stripping, and includes a holding frame that holds the high-pressure water nozzle so as to be movable in the left-right direction, nozzle moving means for moving the high-pressure water nozzle in the left-right direction along the holding frame, holding frame arranging means for arranging the holding frame so as to be movable in the left-right direction with respect to the vehicle, and holding frame moving means for moving the holding frame in the left-right direction.

Effects of the Invention

[0009] According to the present invention, since the high-pressure water nozzle is movable in the left-right direction along the holding frame and the holding frame is movable in the left-right direction, by moving the holding frame in the left-right direction, the position of the suspending target area and the holding frame can be easily aligned without moving the moving body back and forth.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0012] FIGS. 1 and 2 show a schematic configuration of a suspending work machine 1 according to an embodiment of the present invention. The suspending work machine 1 performs suspending by injecting high-pressure water from a high-pressure water nozzle 12 mounted on a moving body 11 having a self-propelling function. The moving body 11 is equipped with, for example, an engine (not shown) as a power source and is movable back and forth by crawlers 11A provided on the left and right. Further, the moving body 11 is provided with, for example, an operation handle and an operation lever 11B for operating the suspending work machine 1.

[0013] The dredging work machine 1 also includes a holding frame 13 that holds the high-pressure water nozzle 12 so as to be movable in the left-right direction, a nozzle moving means 14 that moves the high-pressure water nozzle 12 in the left-right direction along the holding frame 13, a holding frame arranging means 15 that arranges the holding frame 13 so as to be movable in the left-right direction with respect to the moving body 11, and a holding frame moving means 16 that moves the holding frame 13 in the left-right direction. That is, the dredging work machine 1 can move the high-pressure water nozzle 12 in the left-right direction, and can also move the holding frame 13 that holds the high-pressure water nozzle 12 in the left-right direction. Here, the left-right direction means the left and right directions facing the front-rear direction which is the moving direction of the moving body 11.

[0014] The high-pressure water nozzle 12 and the holding frame 13 are provided, for example, on the front side of the moving body 11. The high-pressure water nozzle 12 is connected to an external high-pressure water supply device (not shown) via a supply pipe 12A such as a hose, and is adapted to jet the high-pressure water supplied from the high-pressure water supply device.

[0015] FIG. 3 and FIG. 4 show a partial configuration of the holding frame 13 and the nozzle moving means 14. FIG. 3 shows the configuration seen from the front side, and FIG. 4 shows the configuration seen from the side of the moving body 11. The holding frame 13 extends, for example, in the left-right direction, and has a guide member 13A that guides the movement of the high-pressure water nozzle 12, and a nozzle arranging member 13B that arranges the high-pressure water nozzle 12 so as to be movable with respect to the guide member 13A. The nozzle arranging member 13B is provided with rollers 13C so as to sandwich the guide member 13A, and the high-pressure water nozzle 12 is fixed with its jet outlet facing downward. Thereby, the holding frame 13 can move the high-pressure water nozzle 12 along the guide member 13A.

[0016] The nozzle moving means 14 is configured, for example, to move the nozzle arrangement member 13B in the left - right direction along the guide member 13A. This is achieved by providing a guide chain 14A with both ends fixed along the guide member 13A, fitting a sprocket 14B provided on the nozzle arrangement member 13B into a part of the guide chain 14A, and rotating the sprocket 14B (see Fig. 4). The guide chain 14A is arranged relative to the guide member 13A, for example, by fixing both ends to the left - right cover members 18B described later. A drive source 14C such as a motor is connected to the sprocket 14B.

[0017] Fig. 5 shows the configuration of the holding frame arranging means 15 and the holding frame moving means 16 as seen from the side of the moving body 11. The holding frame arranging means 15 has, for example, a support member 15A that supports the guide member 13A so as to be movable in the left - right direction, that is, the extending direction, and a support arm 15B with one end arranged on the support member 15A and the other end arranged on the moving body 11. The support member 15A is supported by fitting a part thereof movably into a groove portion 13D provided along the extending direction of the guide member 13A.

[0018] Fig. 6 shows the configuration of the holding frame moving means 16 as seen from the front side. The holding frame moving means 16 is configured, for example, to move the guide member 13A in the extending direction, that is, the left - right direction, relative to the holding frame arranging means 15. This is done by providing a guide chain 16A with both ends fixed along the guide member 13A, fitting a sprocket 16C provided on the holding frame arranging means 15 via a arranging member 16B into a part of the guide chain 16A, and rotating the sprocket 16B. The guide chain 16A is arranged relative to the guide member 13A, for example, by fixing both ends to the left - right cover members 18B described later. A drive source 16D such as a motor is connected to the sprocket 16C.

[0019] The suspension working machine 1 preferably further includes vertical movement means 17 for vertically moving the holding frame 13, for example. The vertical movement means 17 is constituted by, for example, a hydraulic cylinder, one end portion of which is rotatably disposed with respect to the support member 15A, and the other end portion of which is rotatably disposed with respect to the moving body 11, and is configured such that the holding frame 13 can be vertically moved by expanding and contracting the hydraulic cylinder. Further, for example, one end portion of the support arm 15B of the holding frame disposing means 15 is rotatably disposed with respect to the support member 15A, and the other end portion is preferably rotatable with respect to the moving body 11 so that the support member 15A can be vertically moved in accordance with the vertical movement means 17.

[0020] Further, below the holding frame 13, for example, front and rear cover members 18A are respectively provided in front of and behind the guide member 13A corresponding to the moving region of the high-pressure water nozzle 12. At both end portions of the guide member 13A, for example, left and right cover members 18B are respectively disposed, and both end portions of the front and rear cover members 18A are respectively disposed on the left and right cover members 18B, and are configured to be vertically movable integrally with the holding frame 13. Above the holding frame 13, for example, a rod-shaped member 19 for hanging a supply pipe 12A, a cable (not shown) for connecting the drive sources 14C, 16C of the sprockets 14B, 16B to a power source, etc. is disposed.

[0021] This suspension working machine 1 is used, for example, as follows. First, the moving body 11 is moved to align the moving region of the high-pressure water nozzle 12 with the suspension target region. At this time, in this suspension working machine 1, since the holding frame 13 can be moved in the left-right direction, after the moving body 11 is moved to roughly align the moving region of the high-pressure water nozzle 12 with the suspension target region, the holding frame 13 can be moved in the left-right direction to accurately align the positions.

[0022] Next, while moving the high-pressure water nozzle 12 in the left-right direction, high-pressure water is jetted to perform leveling. After performing the leveling work for one row, for example, the moving body 11 is retracted by one row, and again, while moving the high-pressure water nozzle 12 in the left-right direction, high-pressure water is jetted to perform leveling. Thereafter, this is repeated to perform the leveling work for the entire leveling target area. Further, when the leveling target area is laterally displaced in the middle of the moving direction of the moving body 11, the holding frame 13 is moved in the left-right direction at the displaced position, and the leveling work is performed by adjusting the moving area of the high-pressure water nozzle 12 to the leveling target area.

[0023] As described above, according to the present embodiment, since the high-pressure water nozzle 12 can be moved in the left-right direction along the holding frame 13 and the holding frame 13 can be moved in the left-right direction, by moving the holding frame 13 in the left-right direction, the position of the leveling target area and the holding frame 13 can be easily aligned without moving the moving body 11 back and forth.

[0024] As mentioned above, the present invention has been described with reference to the embodiments. However, the present invention is not limited to the above embodiments and can be variously modified. For example, in the above embodiments, each component has been specifically described, but not all components need to be provided, and other components may be provided.

[0025] Also, in the above embodiments, the configuration of each component has been specifically described, but other configurations may be adopted. Further, in the above embodiments, the case where the high-pressure water nozzle 12 and the holding frame 13 are provided on the front side of the moving body 11 has been described, but they may be provided on the rear side of the moving body 11.

Explanation of Reference Numerals

[0026] 1… Suspension working vehicle, 11… Moving body, 11A… Crawler, 11B… Operating lever, 12… High-pressure water nozzle, 12A… Supply pipe, 13… Holding frame, 13A… Guide member, 13B… Nozzle arranging member, 13C… Roller, 13D… Groove portion, 14… Nozzle moving means, 14A… Guide chain, 14B… Sprocket, 14C… Driving source, 15… Holding frame arranging means, 15A… Support member, 15B… Support arm, 16… Holding frame moving means, 16A… Guide chain, 16B… Arranging member, 16C… Sprocket, 16D… Driving source, 17… Vertical movement means, 18A… Front and rear cover members, 18B… Left and right cover members, 19… Rod-shaped member

Claims

1. A chipping machine that performs chipping by injecting high-pressure water from a high-pressure water nozzle mounted on a mobile body having a self-propelled function, a holding frame that holds the high-pressure water nozzle so as to be movable in the left-right direction; a nozzle moving means for moving the high-pressure water nozzle in a left-right direction along the holding frame; a holding frame disposing means for disposing the holding frame so as to be movable in the left-right direction with respect to the movable body; a holding frame moving means for moving the holding frame in the left-right direction; A chipping machine comprising:

2. 2. A chipping machine according to claim 1, further comprising a vertical movement means for vertically moving said holding frame.

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