JP2023003878A - Concrete product installation apparatus - Google Patents

Abstract

To provide a concrete product installation apparatus capable of efficiently installing a concrete product at an installation position.SOLUTION: A concrete product installation apparatus includes cargo handling means capable of lifting a concrete product 50 temporarily placed on a road surface and installing the concrete product at an installation position. The cargo handling means includes a lengthwise transportation mechanism 17 capable of transporting the concrete product only in a lengthwise direction in plan view, a lateral transportation mechanism 13 provided in the lengthwise transportation mechanism and capable of the concrete product only in a lateral direction in plan view, a lifting mechanism 14 provided in the lateral transportation mechanism and capable of holding the concrete product and lifting the concrete product, and a rotation mechanism 15 provided in the lateral transportation mechanism and capable of rotating around a center of the concrete product held by the lifting mechanism as a rotational axis.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a concrete product installation device capable of installing a concrete product at an installation position.

Conventionally, when installing a relatively heavy concrete product at an installation position, a lifting machine such as a crane is used to lift the concrete product and install the concrete product at the installation position. In particular, when installing a precast guard fence on a highway, the weight of the precast guard fence is about 4 tons, so it is necessary to control traffic on the road and use a large crane. The length of construction was very short.

Looking at the prior art, Patent Literature 1 discloses a technique of installing a curb block B loaded on a moving base machine 1 by means of an actuator 2 . Patent Literature 2 discloses a technique in which a driver lifts and transports a box culvert 101 using a heavy goods carrier 1 and installs the box culvert 101 . Furthermore, Patent Literature 3 discloses a technique in which concrete blocks W are loaded on the loading platform 2 of a truck 1 and a plurality of arms and a rotating shaft are provided on a boom 4 so that the concrete blocks W can be installed.

JP-A-3-281801 Japanese Patent Application Laid-Open No. 2021-008362 JP-A-7-061797

All of the conventional techniques described above still have room for improvement in terms of construction speed, construction labor, construction accuracy, etc., related to the installation of heavy concrete products.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a concrete product installation apparatus capable of efficiently installing a concrete product at an installation position.

The invention according to (1) has a running portion capable of running on a road surface, and a main body portion supported by the running portion, and the main body portion lifts a concrete product temporarily placed on the road surface to lift the concrete product. A cargo handling means capable of being installed at an installation position of the concrete product is provided, and the cargo handling means is provided in a vertical transport mechanism capable of transporting the concrete product only in a vertical direction in plan view, and the vertical transport mechanism. a horizontal conveying mechanism capable of conveying the concrete product only in the horizontal direction in plan view, and a lifting mechanism provided in the horizontal conveying mechanism and capable of holding the concrete product and lifting and lowering the concrete product. and a turning mechanism that is provided in the horizontal transport mechanism and that can turn the center of the concrete product held by the lifting mechanism as a rotation axis. .

According to the above configuration (1), while the concrete product installation device is running, the concrete products that have been temporarily placed on the road surface can be transported and installed sequentially by the loading/unloading means, so installation work can be performed very efficiently. As a result, it is possible to greatly improve the construction speed compared to the installation work using conventional cranes.

Furthermore, the orientation of the concrete product can be adjusted by providing a turning mechanism capable of turning the center of the concrete product as a rotation axis. As a result, even if the road alignment is a curved line, a clothoid curve, or the like, it is possible to operate the turning mechanism to adjust the delicate alignment of the curved line and install the concrete product extremely accurately. In addition, since it is not necessary to load a plurality of concrete products on the concrete product installation device, it is possible to greatly improve the construction speed by eliminating the conventionally necessary unloading work.

The invention according to (2) is the concrete product installation apparatus according to (1) above, wherein the traveling unit includes a plurality of crawlers that can travel on the road surface, and a steering mechanism that can change the traveling direction of the crawlers. is.

According to the above configuration (2), since the concrete product installation device is provided with a plurality of crawlers and a steering mechanism capable of changing the traveling direction of the crawlers, it is possible to correspond to various alignments on which the concrete products are installed. It is possible to make the concrete product installation device self-propelled.

The invention according to (3) has control means capable of controlling the traveling portion and the main body portion, and the control means shifts a predetermined amount in parallel from an installation planned line along which the concrete products are continuously installed. The concrete product installation apparatus according to the above (1) or (2), wherein a travel plan line is set and the travel section can be automatically controlled so that the main body moves on the travel plan line.

According to the above configuration (3), the concrete product installation device can travel on the planned travel line that is shifted by a predetermined amount parallel to the planned installation line of the concrete product by automatic control. It is possible to keep the amount of movement of the product up to the installation position substantially constant, enabling efficient installation work.

In the invention according to (4), the traveling section includes a main body elevation mechanism capable of changing the height position of the main body from the road surface, and has control means capable of controlling the traveling section and the main body. The control means can automatically control the body elevating mechanism to maintain the height position of the body at a height position shifted upward by a predetermined amount from the planned installation height of the concrete product. The concrete product installation device according to any one of the above (1) to (3).

According to the above configuration (4), the height position of the main body of the concrete product installation device is maintained at a height position shifted upward by a predetermined amount from the planned installation height of the concrete product by automatic control by the control means. Therefore, it is possible to move the concrete product smoothly and install it at the planned installation height.

The invention according to (5) has control means capable of controlling the traveling portion and the main body portion, and the control means detects the position information of the concrete product being installed by the cargo handling means, and The concrete product installation apparatus according to any one of the above (1) to (4), which automatically controls the cargo handling means so that the product is installed at the installation position.

According to the above configuration (5), the positional information of the concrete product being installed is detected, and based on this, the cargo handling means is automatically controlled, so that the concrete product can be accurately installed at the installation position. .

In the invention according to (6), the elevating mechanism capable of elevating the concrete product includes a hook that engages with a hanging fitting provided on the concrete product, and the hook rotates to engage the hook. The concrete product installation device according to any one of the above (1) to (5), wherein the hanging fitting can be engaged with an engagement groove formed in the above.

According to the above configuration (6), since the hook is configured to be engaged with the lifting fitting provided on the concrete product by rotating, it is possible to reliably and safely lift the concrete product. Also, it is possible to lift concrete products extremely smoothly.

1 is an overall perspective view of a concrete product installation device according to an embodiment of the present invention; FIG. 1 is a perspective view showing an installation mode of a concrete product in an embodiment of the present invention; FIG. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing an installation mode of a concrete product by cargo handling means in an embodiment of the present invention, where (a) shows the mode when the concrete product is lifted, and (b) shows the mode when the concrete product is installed. ing. It is a front view explaining control composition of a concrete product installation device in an embodiment of the present invention. It is a front view explaining control composition of a concrete product installation device in an embodiment of the present invention. Fig. 10 is a perspective view illustrating how the hook of the elevating mechanism 14 engages with the lifting fitting of the concrete product in the embodiment of the present invention, and (a) and (b) illustrate how the hook descends . It is a perspective view explaining the engagement aspect of the hook of the lifting mechanism 14 and the lifting metal fitting of the concrete product in the embodiment of the present invention. An embodiment is illustrated.

Hereinafter, a concrete product installation device of the present invention will be described based on one embodiment with reference to the drawings.

FIG. 1 shows an overall perspective view of a concrete product installation apparatus 1 according to the present embodiment, showing a state in which a precast guard fence is held as a concrete product 50 to be installed.

The concrete product installation device 1 in this embodiment is mainly composed of a traveling part that can travel on the road surface and a main body part that is supported by the traveling part, and the traveling part can travel on the road surface around the construction site. A plurality of crawlers 11 (four in this embodiment), a steering mechanism (not shown) capable of changing the traveling direction of the crawlers 11, and a hydraulic cylinder capable of changing the height position of the main body from the road surface. It is composed of at least the body lifting mechanism 12 .

The main body has a frame structure as shown in FIG. 1, and is provided with pivot arms 18 at the four corners. . Further, the main body is provided with an engine unit 21, a fuel tank 22, a hydraulic oil tank 23, etc., as shown in the figure, and a control means 60 for controlling the operation of the concrete product installation apparatus 1 including the traveling part and the main body. I have.

In addition, as shown in FIG. 2, the main body includes at least cargo handling means capable of lifting the concrete product 50 temporarily placed on the road surface and installing the concrete product 50 at the installation position. .

The above cargo handling means is held by a support arm 10 as shown in FIG. Although only the cargo handling means is shown in detail in FIG. 3, the cargo handling means is a vertical transport mechanism capable of transporting the concrete product 50 in the vertical direction (arrow Y1 in FIG. 3(b)) in plan view. 17, a horizontal transport mechanism 13 provided in the vertical transport mechanism 17 and capable of transporting the concrete product 50 in a horizontal direction (arrow X1 in FIG. 3B) in a plan view, and the horizontal transport mechanism 13. and a lifting mechanism 14 capable of holding the concrete product 50 and lifting the concrete product 50 (arrow Z1 in FIG. 3B).

Further, the horizontal transport mechanism 13 described above includes a turning mechanism 15 capable of turning the held concrete product 50 about the chain line (the center of the concrete product 50) in FIG. 3(b). The turning mechanism 15 of the present embodiment is capable of turning within a range of ±18.5°, and fine adjustment of the installation direction is possible when the concrete product 50 is installed.

By providing the turning mechanism 15 capable of turning the center of the concrete product 50 as described above as a rotation axis, even if the road alignment is a curve or a clothoid curve, the turning mechanism 15 can be operated to turn the curve. It is possible to install the concrete product 50 very accurately by adjusting the delicate alignment.

As shown in FIG. 3 and the like, the vertical transport mechanism 17 described above is configured to be movable on two vertical traveling rails 16 fixed to the main body by means of vertical movement hydraulic cylinders. It is possible to transport the concrete product 50 by a maximum of 2 m in the vertical direction (arrow Y1 in FIG. 3(b)) from the position shown in FIG. 3(a) to the position shown in (b).

As shown in FIG. 3 and the like, the horizontal transport mechanism 13 described above is configured to be movable on two horizontal traveling rails 20 fixed to the vertical transport mechanism 17 by a horizontal movement hydraulic motor. 3(a) to the position shown in FIG. 3(b), the concrete product 50 can be conveyed laterally (arrow X1 in FIG. 3(b)) by a maximum of 2.65 m. there is

As shown in FIG. 3, more specifically in FIG. It consists of a hook 142 that engages 51 . In this embodiment, it is possible to move the hook 142 up and down by a maximum of 300 mm by operating the lifting hydraulic cylinder 141 .

Further, length measuring wires are installed in the vertical transport mechanism 17 and the horizontal transport mechanism 13, and in the lifting mechanism 14, the lifting hydraulic cylinder 141 has a length measuring function. As a result, the movement amount information and position information of each mechanism are detected by a control means to be described later, and are further stored to enable reciprocating motion from the position shown in FIG. 3(a) to the position shown in FIG. 3(b). Automatic control is possible.

FIGS. 6 and 7 sequentially show the engagement process when the hook 142 is engaged with the sling fitting 51 provided on the concrete product 50. FIG. More specifically, as shown in FIG. 6A, the lifting hydraulic cylinder 141 is operated to lower the hook 142, and as shown in FIG. The protrusion of the hanging fitting 51 is inserted into the notch.

Next, as shown in FIG. 7(c), the hook 142 is rotated in the direction of the arrow by a rotation mechanism using a hydraulic cylinder (not shown), and the protrusion of the hanging fitting 51 is engaged with the engagement groove formed in the hook 142. Engage. Then, as shown in FIG. 7(d), the lifting hydraulic cylinder 141 is operated again to raise the hook 142, and the concrete product 50 can be lifted.

Next, a control mode of the concrete product installation device 1 in this embodiment will be described.

FIG. 2 shows a perspective view of a situation in which a precast guard fence as a concrete product 50 is being installed by the concrete product installation device 1 . As illustrated, the concrete products 50 are successively installed at the installation positions along the installation plan line. Further, the concrete product installation apparatus 1 is configured to travel on a planned travel line shifted by a predetermined amount parallel to the planned installation line, and to move above the temporary placed concrete product 50 of the main body.

With this configuration, it becomes possible to place the main body on top of the concrete product 50 temporarily placed on the travel plan line in advance, and the concrete product 50 is lifted and held by the above-described cargo handling means of the main body. Then, the concrete product 50 is installed at the installation position on the installation plan line.

Further, as shown in FIGS. 1 and 4, the concrete product installation apparatus 1 is provided with a control means 60 capable of controlling the traveling section and main body section of the concrete product installation apparatus 1. Various controls can be executed including travel control and installation control by cargo handling means. Further, the control means 60 of the present embodiment includes a touch panel (not shown), and present position information (each mechanism movement amount) can be displayed.

Furthermore, by operating the touch panel, the vertical transport mechanism 17, the horizontal transport mechanism 13, the lifting mechanism 14, the main body lifting mechanism 12, and the turning mechanism 15 can be set to the standby position, the position at the time of installation of the concrete product 50, and the position at the time of lifting the concrete product 50. can be arbitrarily preset and stored in the storage section of the control means. With such a configuration, for example, it is possible to automatically control the reciprocating motion from the position shown in FIG. 3(a) to the position shown in FIG. 3(b).

Further, the concrete product installation apparatus 1 of this embodiment includes a wireless controller capable of controlling the vertical transport mechanism 17, the horizontal transport mechanism 13, the lifting mechanism 14, the main body lifting mechanism 12, the turning mechanism 15, and the traveling portion. I have. By providing such a controller, automatic control by the control means and manual control by the controller can be freely selected. By enabling manual control by the controller, the operator can manually carry out fine adjustments during lifting, transportation, and installation of the concrete product 50 .

Further, the concrete product installation device 1 of the present embodiment is provided with prisms 31 on the left and right sides above the main body of the concrete product installation device 1, as shown in FIG. 4 and the like. Then, as shown in the figure, two total stations 30 are arranged around the concrete product installation device 1, and the prisms 31 are respectively tracked, and the position information and height information of the concrete product installation device 1 are transmitted to the control means 60. configured for sharing.

With this configuration, as shown in FIG. 4, the height shifted upward by a predetermined amount from the planned installation height of the concrete product 50 (for example, the planned height of the top of the concrete product 50 to be installed). In the vertical position, the main body elevating mechanism 12 is automatically controlled so that the main body is always kept constant, so that the amount of descent (Z2 in the drawing) of the elevating mechanism 14 during installation of the concrete product 50 is also kept constant. The concrete product 50 can be installed smoothly.

Further, the steering mechanism (not shown) of the crawler 11 is automatically controlled based on the position information obtained from the total station 30, so that the concrete product installation apparatus 1 can be moved along the planned travel line. It is possible. This makes it possible to install the concrete product 50 while keeping the lateral movement amount (X1) of the lateral transport mechanism 13 shown in FIG. 4 constant. Further, the concrete product installation apparatus 1 can automatically travel at intervals corresponding to the length of the concrete product 50 (in other words, the installation distance in the installation extension direction) by automatic control. With such a configuration, when the installation of the concrete product 50 is completed, the vehicle automatically travels to the installation position of the next concrete product 50 by automatic control, so that extremely efficient installation work becomes possible.

Furthermore, in this embodiment, as shown in FIG. 4, a total station 40 for finished shape inspection is arranged, and the position information of the concrete product 50 is detected by collimating the product-side prism 52 of the concrete product 50. ing. By adding such a configuration, for example, it is possible to operate the cargo handling means while operating a wireless controller or the like, and install the concrete product 50 at an accurate installation position while making fine adjustments.

(Other embodiments)
Although one embodiment of the present invention has been described above, the present invention is not necessarily limited to the configuration described above, and the following various modifications are possible.

For example, the drive source used for each mechanism described above is not limited to a hydraulic cylinder or a hydraulic motor, and can be changed as appropriate according to the required performance and accuracy. Similarly, the movable range of each mechanism can be changed as needed.

Moreover, in the embodiment described above, a precast guard fence was installed as the concrete product 50 by the concrete product installation device 1 . In this way, by making it possible to install a concrete product 50 having considerable weight and length, such as a precast guard fence, it is possible to greatly improve the construction speed compared to the conventional method, and to control traffic regulations. It is possible to reduce the time and the scope of regulation. However, the concrete products 50 are not necessarily limited to such concrete products 50, and the concrete product installation apparatus 1 of the present invention can be used for installation of various concrete products 50 including curbs.

For example, in the above-described embodiment, two elevating mechanisms 14 are provided to lift the precast guard fence with two hooks 142. may be lifted. Further, the hook 142 is not necessarily limited to the one that engages the hanging metal fitting 51, and the concrete product 50 may be sandwiched and lifted, and various known lifting metal fittings may be applied.

In addition, the position information of the concrete product 50 detected by the above-described total station 40 for finished shape inspection may be shared with the control means 60. With such a configuration, the installation of the concrete product 50 can be It becomes possible to carry out by automatic control with high precision.

Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these embodiments. The scope of the present invention is indicated by the scope of the claims rather than the description of the above-described embodiments, and includes all modifications within the meaning and scope equivalent to the scope of the claims. Further, the specific materials, dimensions, shapes, etc. described in the above embodiments can be changed within the scope of solving the problems of the present invention.

1 Concrete Product Installation Device 10 Support Arm 11 Crawler 12 Body Lifting Mechanism 13 Horizontal Transfer Mechanism 14 Lifting Mechanism 15 Turning Mechanism 16 Vertical Travel Rail 17 Vertical Transfer Mechanism 18 Pivot Arm 19 Leg Extension Frame 20 Horizontal Travel Rail 21 Engine Unit 22 Fuel Tank 23 Hydraulic oil tank 30 Total station 31 Prism 40 Total station for finished shape inspection 50 Concrete product 51 Hanging fitting 52 Product side prism 141 Lifting hydraulic cylinder 142 Hook

Claims (6)

Having a running portion capable of running on a road surface, and a body portion supported by the running portion,
The main body is
A cargo handling means capable of lifting the concrete product temporarily placed on the road surface and installing it at the installation position of the concrete product,
The cargo handling means
a vertical transport mechanism capable of transporting the concrete product only in the vertical direction in plan view;
a horizontal conveying mechanism provided in the vertical conveying mechanism and capable of conveying the concrete product only in a horizontal direction in plan view;
an elevating mechanism provided in the horizontal transport mechanism and capable of holding the concrete product and elevating the concrete product;
A concrete product installation apparatus, comprising: a turning mechanism that is provided in the horizontal conveying mechanism and capable of turning the concrete product held by the elevating mechanism about the center of the concrete product as a rotation axis. The running section is
a plurality of crawlers capable of traveling on the road surface;
The concrete product installation apparatus according to claim 1, further comprising a steering mechanism capable of changing the advancing direction of the crawler. Having a control means capable of controlling the traveling portion and the main body,
The control means is
A travel planning line that is shifted by a predetermined amount in parallel from an installation planning line on which the concrete products are continuously installed is set, and the traveling unit can be automatically controlled so that the main body moves on the travel planning line. Item 3. The concrete product installation device according to Item 1 or 2. The running section is
A main body lifting mechanism capable of changing the height position of the main body from the road surface,
Having a control means capable of controlling the traveling portion and the main body,
The control means is
4. The height position of the main body can be maintained at a height position shifted upward by a predetermined amount from the planned installation height of the concrete product by automatically controlling the main body elevating mechanism. Concrete product installation device according to any one of the above. Having a control means capable of controlling the traveling portion and the main body,
The control means is
5. The concrete product installation according to any one of claims 1 to 4, wherein position information of said concrete product being installed is detected by said cargo handling means, and said cargo handling means is automatically controlled so that said concrete product is installed at the installation position. Device. The elevating mechanism capable of elevating the concrete product includes a hook that engages with a hanging fitting provided on the concrete product,
The concrete product installation device according to any one of claims 1 to 5, wherein the hook is rotated to engage the hanging fitting with an engagement groove formed in the hook.

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