JP4887396B2 - Drilling device - Google Patents

Description

  The present invention relates to a drilling device.

  Existing structures may be subjected to seismic reinforcement due to insufficient shear strength. Seismic reinforcement work for underground structures such as tunnels and box culverts is difficult to perform from the outer surface of the structure, so it is necessary to reinforce it from the inside.

  As a seismic reinforcement method for such underground structures, after drilling a reinforcing member insertion hole from the interior side, a shear reinforcing member (for example, a shear reinforcing bar) is placed in the reinforcing member insertion hole. There is.

  As shown in Patent Document 1, for example, as shown in Patent Document 1, a hammer drill installed on a platform that can be raised and lowered in an aerial work vehicle is used for drilling a reinforcing member insertion hole for an underground structure including a high place such as a large-section tunnel. Do it.

  As a result, it is possible to perform drilling work at a high place safely, and it is also possible to easily move a device such as a hammer drill by running the high place work vehicle itself.

Japanese Patent Laid-Open No. 11-343743

  However, since the platform of the aerial work platform is installed on the traveling means, the drilling operation cannot be performed on a low part such as a side wall portion of the tunnel in a state where the hammer drill is installed on the aerial work vehicle. . Therefore, it was necessary to arrange a stand for fixing a hammer drill separately for drilling a low wall surface.

  In addition, since the loading platform of an aerial work platform can ensure only a limited space, it is difficult to perform a plurality of drilling operations at the same time. For this reason, when it is necessary to form a large number of reinforcing member insertion holes such as a large-section tunnel, the work period has been shortened by arranging a plurality of aerial work vehicles. However, it is troublesome to individually move a plurality of aerial work vehicles in a tunnel where the work space is limited, and there is a problem that the cost is increased by arranging a plurality of aerial work vehicles. It was.

  The present invention aims to solve the above-mentioned problems, enables drilling from a low place to a high place, and simultaneously performs drilling at a plurality of places safely and inexpensively. It is an object of the present invention to provide a drilling device that enables this.

In order to solve the above-described problems, the present invention provides a cutting trolley comprising: a traveling carriage; a boom installed at each of a front end and a rear end of the traveling carriage; and a drill installed at the tip of each boom. The boom has a base end portion installed on the traveling carriage so that the tip end portion can be moved vertically and horizontally, and the boom end portion is connected to the base side of the other boom. It is characterized by being configured to be able to be arranged in

  In such a drilling device, drills are attached to the two booms, respectively, so that drilling operations at two locations can be performed simultaneously. Moreover, since the traveling carriage is provided, the apparatus can be easily moved.

  In addition, since the boom moves up and down, left and right, a wide range of construction is possible with the traveling carriage installed. Furthermore, drilling from a low place to a high place is possible by moving the boom up and down.

  The drilling device is provided with a drill mounting shaft for mounting the drill at the tip of the boom, and the drill is mounted rotatably about the axis of the drill mounting shaft. Also good.

  According to such a hole drilling device, the drill rotates around the drill mounting shaft, so that the drill can be arranged at a position lower than the tip of the boom. Therefore, it is possible to drill holes in lower places.

  If the boom of the drilling device is extendable, a wider range of construction can be performed.

Incidentally, the tip of the boom drilling apparatus, because it is configured to be able to be placed at the base end of the other boom, while shortening the overhang without or overhang length from the traveling carriage boom can be stored, it can be made compact drilling apparatus in a mobile or when not used.

  The drilling device of the present invention makes it possible to perform drilling from a low place to a high place, and to make drilling at a plurality of locations simultaneously safely and inexpensively.

1 is a side view showing a drilling device according to a preferred embodiment of the present invention. It is a top view of the drilling apparatus. It is a figure which shows the drill of the drilling apparatus, Comprising: (a) is a side view, (b) is a rear view. It is a figure which shows the condition at the time of conveyance of the drilling apparatus, Comprising: (a) is a top view, (b) is a side view.

  Preferred embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the drilling device 1 according to the present embodiment is installed at a traveling carriage 10, booms 20 provided respectively at a front end portion and a rear end portion of the traveling carriage 10, and a tip end of the boom 20. And a drill 30.

The traveling carriage 10 includes a traveling body 11 and a loading platform 12.
In this embodiment, a crawler type is used as the traveling body, but the form of the traveling body is not limited, and may be a tire type, for example.

Booms 20 and 20 are installed on the loading platform 12 at the front and rear, respectively.
Further, as shown in FIG. 2, outriggers 13 are respectively installed on the left and right of the front end portion and the rear end portion of the loading platform 12.

  In this embodiment, the generator 14 is installed in the loading platform 12, and it comprises so that the electric power to the boom 20 and the drill 30 can be supplied.

The booms 20 and 20 are installed before and after the loading platform 12 and are configured to be extendable.
As shown in FIG. 1, each boom 20 rotates in the vertical direction at the base portion 21, so that the distal end portion 22 moves in the vertical direction.
In addition, the boom 20 is installed on the loading platform 12 so that the base 21 can rotate in the lateral direction (horizontal direction).

  The boom 20 is mainly composed of a plurality (three in this embodiment) of cylindrical members, and is configured to be stretchable by overlapping the cylindrical members in a cylinder shape (see FIG. 1). In addition, the structure of the boom 20 is not limited and can be set suitably.

  As shown in FIG. 1, the tip portion 22 of the boom 20 is installed to be rotatable in the vertical direction with respect to the axis of the boom 20. Thereby, the drilling angle of the drill 30 with respect to the inner wall surface of the tunnel can be adjusted.

As shown in FIG. 1, a drill attachment shaft 31 for attaching a drill 30 is installed at the distal end portion 22 of the boom 20.
The drill mounting shaft 31 is installed on the boom 20 via a vertical axis 23 fixed to the tip of the boom 20.

  The drill 30 is means for drilling the reinforcing member insertion hole, and is constituted by a hammer drill in this embodiment. The drill 30 performs drilling by sliding back and forth along the support rail 33 while rotating the rod 32. The configuration of the drill 30 is not limited.

  In this embodiment, as shown in FIGS. 3A and 3B, the drill 30 is moved along the support rail 33 by a sliding member 30 a disposed so as to grip the left and right sides of the support rail 33. However, the configuration of the sliding member 30a is not limited.

  As shown in FIG. 3A, the support rail 33 is attached to the drill attachment shaft 31 via a rotation support member 34, a support base 35, a jack 36, and a vertical angle adjustment member 37.

  As shown in FIGS. 3A and 3B, the rotation support member 34 is a member that is rotatably attached to the outer periphery of the drill attachment shaft 31.

  As the rotation support member 34 rotates along the outer periphery of the drill mounting shaft 31, the drill 30 rotates about the axis of the rotation support member 34. Thereby, the drill 30 (rod 32) can be arranged on the top, bottom, left and right of the tip portion 22 of the boom 20.

The support base 35 is a plate-like pedestal that supports the vertical angle adjustment member 37 and the column 38, and is attached to the rotation support member 34 via a jack 36.
A first slide rail 35 a is formed on the upper surface of the support base 35 and is slidably attached to a base portion 36 a of the jack 36. As a result, the left and right of the support base 35 with respect to the drill mounting shaft 31 can be finely adjusted (the front and back sides in FIG. 3A).

  As shown in FIGS. 3A and 3B, the jack 36 is a member configured to be extendable, and performs fine adjustment in the vertical direction of the support rail 33.

  The jack 36 has a base portion 36 a engaged with a first slide rail 35 a formed on the upper surface of the support base 35, and a shaft portion 36 b that passes through the support base 35 and is fixed to the rotation support member 34.

When the shaft portion 36b expands and contracts, the support rail 33 is finely adjusted in the vertical direction, and when the base portion 36a slides along the first slide rail 35a, the support table 35 can be finely adjusted in the horizontal direction. It has become.
The configuration of the jack 36 is not limited.

A vertical angle adjusting member 37 is erected on the rear portion of the support base 35. The vertical angle adjusting member 37 is a cylindrical member interposed between the support rail 33 and the support base 35, and is configured to be vertically expandable and contractible.
As the vertical angle adjusting member 37 expands and contracts, the support rail 33 rotates about its tip, and fine adjustment of the vertical angle is performed.

Further, the vertical angle adjusting member 37 is connected to the support base 35 so as to be movable in the left-right direction by a second slide rail 35 b formed on the upper surface of the support base 35.
As the vertical angle adjusting member 37 moves left and right along the second slide rail 35b, the left and right angles of the support rail 33 can be finely adjusted.

As shown in FIG. 3A, the support column 38 is a member that supports the distal end portion of the support rail 33 and is fixed to the distal end portion of the support base 35.
The support rail 33 is supported by the support column 38 via a spherical support member 33 a installed at the tip of the support rail 33.

  As shown in FIG. 3A, a rod guide 39 is fixed to the distal end portion of the support rail 33, and is configured to prevent the rod 32 from blurring during drilling.

  The drill 30 is configured to be able to finely adjust the vertical, horizontal, vertical and horizontal angles by the above-described configuration, and can be set quickly and accurately over a wide range. The configuration of the drill 30 is not limited.

  The drill mounting shaft 31 is installed so as to be able to rotate in the horizontal direction about the vertical axis 23 as a rotation axis (see FIG. 2). That is, the drill mounting shaft 31 is installed so as to be able to rotate in the lateral direction with respect to the axis of the boom 20.

  As shown in FIG. 1, an operation unit 40 is disposed on the base 21 of the boom 20. The operation unit 40 is used to operate the boom 20 to expand and contract, to correct the direction of the drill 30, and to operate a hole.

  The operator can drill the reinforcing member insertion hole at a predetermined position by operating the operation unit 40 on the loading platform 11 of the traveling carriage 10.

  Moreover, since the drilling device 1 can move the drill 30 over a wide range by the boom 20 and can finely adjust the tip position of the drill 30, drilling of the reinforcing member insertion hole can be performed. It can be performed quickly and accurately over a wide range.

  Since the hole drilling device 1 can simultaneously drill holes through the booms 20, 20 arranged at the front and rear, in a large cross-section tunnel or the like, construction can be performed simultaneously on the left and right in the tunnel circumferential direction.

  Further, since the operation of the boom 20 and the drill 30 can be performed on the mount 11 of the traveling carriage 10, it is not necessary for the worker to work at a high place, and the safety of the worker is ensured.

  Since the drill 30 is installed so as to be rotatable about the drill mounting shaft 31, it can be arranged at a position lower than the tip 22 of the boom 20 as shown in FIG. 1. Therefore, drilling can be performed on the side wall (leg part) of the tunnel.

  Further, since the drill 30 is installed so as to be capable of rotating in the lateral direction with respect to the axis of the boom 20 via the drill mounting shaft 31, as shown in FIG. A hole (drill 30 installed in the right boom 20 in FIG. 1) is possible, and a hole in a direction intersecting the traveling direction of the traveling carriage 10 (drill 30 installed in the left boom 20 in FIG. 1). Can be done.

  As shown in FIGS. 4A and 4B, the drilling device 1 rotates the boom 20, and attaches a drill 30 to the opposite end of the traveling carriage 10 (the base side end of the other boom 20). By arranging it, it becomes possible to store it compactly.

  By storing the boom 20 in a compact manner, the drilling device 1 can be easily transported. In addition, it is possible to save space for temporary storage locations outside the working hours at sites where working time is limited, such as railway tunnels and road tunnels in service.

  Since the traveling cart 10 includes the outrigger 13, the traveling cart 10 can be installed in a stable state.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and it goes without saying that the above-described constituent elements can be appropriately changed without departing from the spirit of the present invention.

  For example, in the above embodiment, the case where the reinforcing member insertion holes are drilled in the tunnel circumferential direction has been described. However, when the plurality of reinforcing member insertion holes are drilled in the tunnel axial direction, A hole device may be used.

DESCRIPTION OF SYMBOLS 1 Drilling apparatus 10 Traveling carriage 20 Boom 21 Base 22 Tip part 30 Drill 31 Drill attachment shaft 40 Operation part

Claims (3)

Traveling cart,
Booms respectively installed at the front end and the rear end of the traveling carriage;
A drilling device comprising a drill installed at the tip of each boom,
The boom has a base installed on the traveling carriage so that the tip can be moved vertically and horizontally ,
A drilling device characterized in that the tip of the boom can be arranged on the base side of the other boom . A drill mounting shaft for mounting the drill is installed at the tip of the boom,
The drilling device according to claim 1, wherein the drill is rotatably mounted with the drill mounting shaft as a rotation shaft.   The drilling device according to claim 1 or 2, wherein the boom is telescopic.

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