JP2022173962A - Vertical cut hole continuous boring device and vertical cut hole continuous boring method - Google Patents

Abstract

To provide a vertical cut hole continuous boring device that can form vertical cut holes in a cured floor composed of a hard material in a linearly continuous stable manner with accuracy and efficiency.SOLUTION: A vertical cut hole continuous boring device includes: a base part 11 movable through a movement mechanism 40; outriggers 12 provided at four corners; a slide boom 13; a slide rail part 16 that guides an advance or retreat movement of the slide boom part 13; and a boring device body 30 mounted to a tip of the slide boom part 13. The slide rail parts 16 are provided in a square region R surrounded by the outriggers 12. A boom body 15 part of the slide boom part 13 is erected from a substrate part 14 as a continuous member without a rotation connector or an expander interposed therebetween and is also bent sideward through a curving bending part 15a. Thus, the boring device body 30 is disposed at an external side of the square region R surrounded by the outriggers 12.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a continuous vertical cutting hole drilling device and a continuous vertical cutting hole drilling method, and more particularly to a continuous vertical cutting hole drilling for forming a plurality of continuous vertical cutting holes to be drilled in a solid substance. The present invention relates to an apparatus and a continuous vertical cutting hole drilling method using the vertical continuous cutting hole drilling apparatus.

For example, at a steel plant, there are cases where pig iron left at the bottom of the blast furnace is removed during blast furnace renewal work, or pig iron that is temporarily discharged to a pit outside the furnace during operation of the facility is removed. . These pig irons are removed in a solid state, but since they have a high specific gravity, they are dismantled into small pieces so that they have a weight that can be transported.

Conventionally, various methods have been developed for dismantling pig iron left as such solid substances. A blast hole is drilled in a certain residual iron, and the residual iron is dismantled into small pieces by blasting. However, there were problems such as the necessity of evacuation and the possibility of damaging equipment such as blast furnaces.

In addition, as a safer method, for example, Patent Document 2 proposes a method of cutting residual pig iron with a wire saw into small pieces and carrying them out of the furnace. Since it is necessary to install a wire saw in the part, it is a construction method that requires a lot of labor and has many restrictions such as difficulty in arranging a plurality of wire saws in a crossed manner.

On the other hand, for example, in Patent Document 3, a device for drilling a blast hole or a drill bit is used to form a plurality of blast holes reaching the bottom of the residual iron in a continuous state along a predetermined cutting line. A method of linearly cutting residual pig iron by forming a through groove with a vertical cut hole (line cut method) has been proposed. It has also been proposed to use a core bit for drilling only the circumferential portion of the vertical cut hole instead of the drill type drill bit for drilling the vertical cut hole in the entire cross section.

JP-A-2000-256717 JP 2011-153327 A JP 2012-162787 A Japanese Patent Application Laid-Open No. 2020-2386

However, according to the conventional apparatus for forming vertical cut holes, preferably used in the above-mentioned line cutting method, the drilling for drilling blast holes mainly transversely to the rock mass, for example in the mountain tunneling method. Since a device with a bit is used to form a vertical cutting hole, it is particularly hard and strong compared to rock, such as the bottom of a blast furnace, which is formed by pig iron lumps. When drilling a vertical cut hole in a solid material left behind as a floor hardened body, the heavy load applied during drilling is transferred to the surrounding floor by a moving mechanism such as a crawler in a heavy machine equipped with a drilling device. Only the grounded portion to the hardening body cannot support it in a stable state, and is likely to be in an unstable state, making it difficult to accurately form a vertical cut hole.

On the other hand, according to Patent Document 4, for example, in a drilling machine that is a drilling device mounted on a heavy machine (crawler), a pressing member and a preceding By providing a shaft having a fixing means to be inserted into the vertical through-hole formed by the above method and pressing it against the hardened floor body, it is devised to stabilize the drilling operation by the drilling device. Even when using , it takes time and effort to accurately form vertical through holes in the hardened hard floor, and each time a vertical cut hole is formed, the heavy machine (crawler) is re-installed. It is difficult to efficiently form a plurality of vertical cut holes, preferably in a row, because it takes time to move and set up the holes.

For this reason, for example, as a drilling device for drilling holes vertically in a solid substance made of a hard material, a plurality of vertical holes are preferably connected in a straight line to achieve high accuracy and efficiency in a stable state. It would be desirable to develop a new drilling device that would allow better shaping.

The present invention is a vertical cutting hole that can form a plurality of vertical cutting holes, preferably in a straight line, in a stable state with high accuracy and efficiency even in a solid substance made of a hard material. It is an object of the present invention to provide a continuous drilling device and a continuous vertical cutting hole drilling method.

The present invention relates to a continuous vertical cut hole drilling device for forming a plurality of continuous vertical cut holes to be drilled in a solid substance, the base being movable on the solid substance via a moving mechanism. a platform, outriggers provided at the four corners of the base, a slide boom supported by the base and moving back and forth along the top surface of the base, and back and forth of the slide boom It includes a slide rail portion installed on a base portion that guides movement, and a drilling device main body attached to the tip portion of the slide boom portion, and the slide rail portion is attached to the base portion. provided to move the base portion of the slide boom portion inside the quadrangular area surrounded by the outrigger portion in the above, and the slide boom portion is slidably placed on the slide rail portion The punching device main body is erected from the substrate portion as a continuous member without intervening a rotation connecting portion or an expansion/contraction portion, and is bent sideways through a bending portion. and a boom main body portion for arranging the tip connecting portion to be connected to the outer side of the area directly above the base plate portion, and when the piercing rod of the piercing device main body is erected vertically, By providing a vertical cutting hole connecting drilling device connected to the tip connecting portion of the boom body such that the lower end drilling bit is located outside the rectangular area enclosed by the outrigger portion, The above objectives have been achieved.

In the drilling device for continuous vertical cutting holes of the present invention, the drilling device main body is connected to the tip connecting portion of the boom main body so as to be rotatable in the elevation direction, and the tip connecting portion of the punching device main body is connected to the tip connecting portion of the boom body. By driving a telescopic jack that connects a portion above the boom body and a portion below the tip connection portion of the boom body, the perforation rod can be switched from a tilted state to a vertically standing state. It is preferable that

Further, the vertical cutting hole continuous drilling apparatus of the present invention includes a slide fixing mechanism for slidingly moving the slide boom portion in a forward and backward direction so as to be fixed at a predetermined position along the base portion, and the slide The fixing mechanism is slidable on the slide rail portion provided on the base portion and having a slide surface extending in a forward/backward direction, and the slide surface provided on the base portion of the slide boom portion. a slide plate surface portion that slides the slide boom portion along the slide rail portion in a state of surface contact with the slide rail portion; is pressed against the slide rail portion so that the slide boom portion can be fixed at a predetermined position on the slide rail portion by a contact frictional force.

Further, in the continuous vertical cutting hole drilling device of the present invention, the sliding plate surface portion provided on the base portion of the slide boom portion is placed on the mounting surface of the mounting portion mounted on the slide rail portion. , preferably formed by mounting a sliding plate member using a plate-like self-lubricating bearing.

Further, in the vertical cutting hole continuous drilling device of the present invention, the stopper portion is inserted into a hydraulic cylinder fixed to the base plate portion of the slide boom portion and an advance/retreat through-hole formed by penetrating the base plate portion. and the pressing portion provided so as to protrude from the base plate portion toward the slide rail portion by the operation of the hydraulic cylinder.

Further, in the vertical cutting hole continuous drilling device of the present invention, it is preferable that the slide rail portions extend in the forward/backward direction, are arranged in a pair in parallel, and are fixed to the upper surface portion of the base portion.

Further, in the continuous vertical cutting hole drilling device of the present invention, an advancing/retreating movement mechanism for moving the slide boom portion in an advancing/retreating direction is provided in a region between the pair of the slide rail portions arranged in parallel. is preferred.

Further, in the drilling device for connecting vertical cutting holes of the present invention, the forward/backward movement mechanism is disposed in the forward/backward direction at the center portion in the width direction of the region between the pair of slide rail portions on the upper surface portion of the base portion. and a pinion member which is attached to a hydraulic motor fixed to a base portion of the slide boom portion and arranged so as to protrude downward from the base portion. is preferred.

Further, in the vertical cutting hole continuous drilling device of the present invention, the moving mechanism is a traveling device using a pair of endless tracks arranged on both sides of the base, and the slide rail It is preferable that the portion is arranged so as to extend in parallel with the endless track of the traveling device.

Further, in the apparatus for drilling continuous vertical holes of the present invention, it is preferable that the drilling bit attached to the lower end of the drilling rod is a drilling bit by a core bit for cutting the circumferential portion of the vertical hole. .

Furthermore, in the continuous vertical cutting hole drilling apparatus of the present invention, it is preferable that the solid matter is residual pig iron discharged from a blast furnace in an ironworks.

The present invention also provides a continuous vertical cutting hole drilling method using the vertical continuous cutting hole drilling device described above, wherein the moving mechanism moves the vertical continuous cutting hole drilling device to a predetermined position on the solid material. A first step of moving and a second step of fixing the vertical drilling device onto the solid material by extending the outriggers toward and grounding the solid material. and a third step of forming continuous vertical cutting holes in the solid material by the punching device body while moving the slide boom portion back and forth toward the front end side or the rear end side of the slide rail portion; The above objects are achieved by providing a method for drilling continuous vertical cut holes, comprising:

In the third step of the continuous vertical cutting hole drilling method of the present invention, the slide boom section is moved to the position of the tip of the slide rail section, and the drilling device main body is moved above the solid material. a fourth step of moving to a predetermined position; a fifth step of punching and forming a vertical cutting hole in the solid material by the punching device main body; A sixth step is to move the drilling device body by a distance corresponding to the diameter of the formed vertical cut hole and position the drilling device body so that the next vertical cut hole is connected to the formed vertical cut hole. and a seventh step of drilling said next vertical cutting hole in said solid material with said drilling device body.

Further, the continuous vertical cutting hole drilling method of the present invention is characterized by: The perforation is moved toward the distal end side of the perforation by a distance corresponding to the diameter of the perforated vertical perforation so that the next vertical perforation is connected to the perforated vertical perforation Preferably, a ninth step of positioning a device body and a tenth step of drilling said next vertical cutting hole in said solid material with said drilling device body are carried out.

Further, in the continuous vertical cutting hole drilling method of the present invention, the drilling device body is further connected to the slide boom section so as to be rotatable in an elevation direction and tiltable back and forth, and the drilling device body is connected to the solid body. Rotatable and forward/backward tiltable to said slide boom section performed after said fourth step or said ninth step for adjusting the rotation and tilt of said drilling device body so as to be able to drill perpendicularly to the material. and adjusting the rotation and tilt of the perforator body so that the perforator body can perforate the solid material perpendicularly to the solid material is performed after the fourth step or the ninth step Preferably, it is designed to

Further, in the method for drilling continuous vertical cutting holes of the present invention, the drilling device body further includes a drill bit for cutting the solid substance, and the drill bit is the vertical drill bit that is drilled in the solid substance. It cuts the circumferential portion of the cut hole, and in the fourth step or the eighth step, after the formation of the vertical cut hole, the cut by the drill bit and the remaining in the drill bit Preferably, it is adapted to remove the residual iron, which constitutes the solid matter, from the drill bit.

Furthermore, in the method for making continuous vertical cut holes according to the present invention, the fifth step to the seventh step or the eighth step to the tenth step include the total length of the slide rail portion and the diameter of the vertical cut hole. is preferably arranged to be repeated a number of times determined according to the

According to the apparatus for providing continuous vertical cutting holes or the method for providing continuous vertical cutting holes of the present invention, a plurality of vertical cutting holes are formed in a solid substance made of a hard material, preferably in a straight line, in a stable state. can be formed accurately and efficiently.

FIG. 2 is a side view illustrating a continuous vertical cutting hole drilling device according to a preferred embodiment of the present invention; FIG. 2 is a plan view illustrating a continuous vertical cutting hole drilling device according to a preferred embodiment of the present invention; FIG. 4 is a schematic cross-sectional view illustrating a construction situation by a continuous vertical cutting hole drilling device according to a preferred embodiment of the present invention; (a) is a schematic side view and (b) is a schematic rear view of (a) viewed from the right side of the slide boom section, slide rail section, and mounting support section of the vertical drilling device. be. (a) is a schematic side view and (b) is a schematic plan view of (a) viewed from above, of the slide boom portion and the slide rail portion of the continuous vertical cutting hole drilling device. (a) is a cross-sectional view taken along line AA of FIG. 5(a), and (b) is an enlarged view of portion B of (a). (a) to (e) are diagrams illustrating and explaining a work procedure of a continuous vertical cutting hole drilling method using a continuous vertical cutting hole drilling device.

1 and 2 according to a preferred embodiment of the present invention is used, for example, in a steel plant, as shown in FIG. A mass of residual pig iron left as a floor hardened body 51 is linearly cut by a line cutting method in which through grooves 53 are formed by a plurality of vertical cut holes 52 that are continuously arranged along a predetermined cutting line. Used in construction. That is, the vertical cutting hole continuous drilling device 10 of the present embodiment preferably includes vertical cutting holes 52 forming through grooves 53 in a hardened floor body 51, which is a hard solid material having considerable strength, for example. is used as a drilling device specialized for drilling holes perpendicular to the surface of the hardened floor body 51, which is a solid substance, in order to form a plurality of holes arranged linearly. The continuous vertical cutting hole drilling device 10 of the present embodiment vertically penetrates a plurality of vertical cutting holes 52, preferably as through holes, in the residual pig iron forming a hard floor hardened body 51, for example. At the same time, it has a function to enable the formation in a stable state with high precision and efficiency by connecting them in a straight line.

The continuous vertical cut hole drilling device 10 of the present embodiment is a drilling device for forming a plurality of vertical cut holes 52 which are drilled in a floor hardened body 51 made of, for example, residual pig iron and which are arranged in a straight line. As shown in FIGS. 1 and 2, a base portion 11 that can move on a hardened floor body 51 via a moving mechanism 40, and outriggers provided at four corners of the base portion 11. a slide boom portion 13 that is supported by the base portion 11 and moves forward and backward along the upper surface thereof; and a slide rail portion installed on the base portion 11 that guides the forward and backward movement of the slide boom portion 13. 16 and a punching device main body 30 attached to the tip of the slide boom portion 13 . The slide rail portion 16 is provided so as to move the base portion 14 of the slide boom portion 13 inside the square region R surrounded by the outrigger portions 12 in the base portion 11 . The slide boom portion 13 is erected from the substrate portion 14 as a member continuous with the substrate portion 14 that is slidably mounted on the slide rail portion 16 without intervening a rotation connecting portion or an expansion/contraction portion. Preferably, the boom body portion 15 is bent sideways via a curved bent portion 15a so that the tip connecting portion 15b to which the punching device main body 30 is connected is arranged outside the region immediately above the base plate portion 14. consists of The piercing device main body 30 is configured such that when the piercing rod 31 of the piercing device main body 30 is erected vertically, the piercing bit 31a at the lower end is arranged outside the rectangular region R surrounded by the outriggers 12. 15 is connected to the tip connecting portion 15b.

Further, in this embodiment, the punching device main body 30 preferably has a mounting support portion 44 interposed therebetween for supporting the punching device main body 30 so as to be able to move up and down and to swing, so that the tip of the boom main body portion 15 of the slide boom portion 13 is positioned at the tip of the boom main body portion 15 . It is connected to the connecting part 15b so as to be rotatable in the elevation direction, and is a part above the tip connecting part 15b of the mounting support part 44 constituting the drilling device main body 30 and a part below the tip connecting part 15b of the boom main body part 15. By driving the telescopic jack 17 connecting the parts, the punching rod 31 of the punching device main body 30 can be switched from a tilted state to a vertically erected state.

Furthermore, in the present embodiment, the continuous vertical cutting hole drilling device 10 includes a slide fixing mechanism 25 that slides and moves the slide boom portion 13 along the base portion 11 in the advancing/retreating direction X so as to be fixed at a predetermined position. ing. The slide fixing mechanism 25 is capable of moving the slide boom section 13 having the drilling device main body 30 attached to the tip thereof on the hardened floor body 51 via the moving mechanism 40 in the drilling device 10 with continuous vertical cutting holes. It is a mechanism that slides along the base portion 11 in the advance/retreat direction X so as to be fixed at a predetermined position, and is provided on the base portion 11 and extends in the advance/retreat direction X. A slide surface 16e (see FIG. 6 (a) and (b)) and a slide surface 16e provided on the base plate portion 14 of the slide boom portion 13, and in a state of being in slidable surface contact with the slide rail portion 16. The sliding plate surface portion 14c that slides the slide boom portion 13 along and the pressing portion 18b that is provided so as to protrude from the base portion 14 of the slide boom portion 13 toward the slide rail portion 16 are pressed against the slide rail portion 16. , and a stopper portion 18 capable of fixing the slide boom portion 13 at a predetermined position of the slide rail portion 16 by the adhesion friction force.

In this embodiment, the moving mechanism 40 for moving the vertical cutting hole continuous drilling device 10 along the upper surface of the floor hardened body 51 (see FIG. 3) made of residual pig iron is provided on both sides of the base 11. It is provided by a known crawler-type running gear 41 with a pair of tracks (see FIG. 1). Since the moving mechanism 40 is provided, the base portion 11 provided with the slide boom portion 13 and the slide rail portion 16 can be moved to the vertically cut hole in the hardened floor body 51 while the outrigger portion 12 is not grounded. It can be moved together with the punching device main body 30 on the cutting line of the through groove 53 by 52 .

The base portion 11 is preferably formed by assembling various steel materials so as to have a substantially vertically long rectangular planar shape as a whole, and a pair of crawler-type traveling devices 41 are connected so as to be connected between them. By being integrally fixed to a support base (not shown) provided in the part of the moving mechanism 40, it is arranged directly above the moving mechanism 40, for example, the moving mechanism 40 by an operator in the operator's cab 42 (see FIG. 1) By the driving operation of , the hardened floor body 51 can be moved along with the movement of the moving mechanism 40 . In addition to the slide boom portion 13 and the slide rail portion 16, which will be described later, the base portion 11 is provided with various necessary known facilities and equipment such as an operator's cab 42, a control panel 43, an electric motor, a fuel tank, and the like. ing. Outrigger portions 12 that can extend and contract in the vertical direction are attached to the four corner portions of the substantially vertically long rectangular planar shape of the base portion 11 .

The outrigger portion 12 includes a known telescopic mechanism including a cylinder portion 12a, a piston rod portion 12b, and a ground plate portion 12c. By sliding the piston rod portion 12b against 12a, the ground plate portion 12c attached to the lower end portion of the piston rod portion 12b is grounded so as to be pressed against the upper surface of the hardened floor body 51. Supporting force can be obtained from the hardened floor body 51, and the punching device 10 can be moved away from the hardened floor body 51 via the moving mechanism 40. As shown in FIG. The outriggers 12 provided at the four corners of the base 11 are grounded on the hardened floor 51 to support the weight of the drilling device 10, thereby performing vertical cutting using the drilling rods 31 of the drilling device body 30. When drilling the hole 52, the weight of the drilling device 10 can stably support the load from the drilling device main body 30 during drilling that is transmitted through the slide boom portion 13 and the slide fixing mechanism 25. Become.

The slide boom portion 13 that advances and retreats along the upper surface portion of the base portion 11 includes the base plate portion 14 and the boom body portion 15 as described above. As shown in FIGS. 4(a), 4(b) and 5(a), 5(b), the base plate portion 14 is a slide base when the slide boom portion 13 is moved back and forth in the back and forth direction X. The boom body 15 stably transmits the vertical load applied from the tip connecting part 15b through the attachment support part 44 to the base plate part 14 when the drilling device body 30 drills a hole. This is the part to support.

In this embodiment, the boom main body 15 of the slide boom 13 includes a pair of curved support plates 15c arranged symmetrically on both sides of the widthwise center line C of the base plate 14, and a space between them. and a connection box portion 15d for integrally connecting the pair of curved support plates 15c. The curved support plate 15c is made of a steel plate having a thickness of, for example, about 40 to 50 mm. The tip connecting portion 15b to which the main body 30 is connected is arranged outside the area directly above the substrate portion 14. As shown in FIG.

That is, each curved support plate 15c has a linear base portion joined to the substrate portion 14, a substantially quarter-circular outer peripheral portion, and a substantially quarter-circular inner peripheral portion having a radius of curvature smaller than that of the outer peripheral portion. The width in the direction perpendicular to the bending direction is smoothly and gradually narrowed from the substrate portion 14 toward the tip connecting portion 15b, It has a curved side profile.

The connecting box portion 15d is made of a steel plate having a thickness of, for example, about 40 to 50 mm similar to the curved support plate 15c, and is curved with a slightly smaller radius of curvature than the outer peripheral portion of the curved support plate 15c. , the inner peripheral surface portion curved with a radius of curvature slightly larger than the inner peripheral portion of the curved support plate 15c, and the portion in front of the semicircular tip side portion of the curved support plate 15c extending in the vertical direction. , and vertical end faces connecting the outer peripheral face and the inner peripheral face to form a curved hollow three-dimensional shape. The connection box portion 15d has an outer peripheral surface portion along the outer peripheral portion of the curved support plate 15c and an inner peripheral surface portion along the inner peripheral portion of the curved support plate 15c. These curved support plates 15c are firmly connected as one by joining them to the inner side surfaces of the plates 15c by welding or the like, and a hollow box shape is attached to the portion between them.

As a result, the boom main body 15 is erected as a continuous member from the base plate 14 slidably placed on the slide rail 16 without intervening a rotation connecting portion or an expansion/contraction portion. is bent sideways through the bent portion 15a extending over its entirety, so that the distal end connecting portion 15b to which the punching device main body 30 is connected via an attachment support portion 44, which will be described later, is placed in the region directly above the base plate portion 14. It is designed to be placed outside the

Further, in the distal end connecting portion 15b of the boom main body portion 15, a portion on the distal end side of the vertical end face portion of the connecting box portion 15d is bridged between the curved support plates 15c on both sides to form a punching device main body 30 described later. A rotary connection pin member 15e is attached to rotatably connect the mounting support portion 44 of the boom body 15 in the elevation direction. A jack connecting pin member 15f for connecting one end portion of the telescopic jack 17 is passed through the hollow inside of the connecting box portion 15d, and the ends on both sides extend outside the respective curved support plates 15c. It is installed in a protruded state.

Furthermore, in the present embodiment, a steel pipe member 15g having a circular hollow cross section is installed between the curved support plates 15c on both sides in the vertical middle portion of the boom body 15, and extends inside the hollow inside of the connection box portion 15d. , and both ends are attached to the respective curved support plates 15c with openings. Since the steel pipe member 15g is installed between the curved support plates 15c of the boom body 15, the steel pipe member 15g functions as a reinforcing rib for the left and right curved support plates 15c and is loaded. It is possible to effectively avoid the torsional deformation of the boom body 15 due to a large unbalanced load.

The base portion 14 of the slide boom portion 13 is made of, for example, a steel plate having a thickness of about 40 to 50 mm, and has a length of about 800 to 900 mm in the advancing/retreating direction X and a length of about 1200 to 900 mm in the width direction Y perpendicular thereto. It has a rectangular planar shape with a size of about 1300 mm. The above-described curved support plate 15c is integrally joined to the upper surface of the substrate portion 14 via welding or the like, and the side edge portions on both sides in the width direction Y are key-shaped so as to have a U-shaped cross section. By being bent into a shape, the slide plate surface portion 14c is placed on the slide rail portions 16 in a state of being held by the pair of slide rail portions 16 from the outside. It has a portion 14a (see FIGS. 4(b) and 6(a)).

A slide plate member 14b known as a slide bearing, for example, a plate-shaped self-lubricating bearing, trade name "Oiles Bearing" (manufactured by Oiles Industry Co., Ltd.), is mounted on the inner surface of the rail locking mounting portion 14a. It is integrally attached to the three surfaces of the top surface portion 14c serving as the placement surface, the side surface portion, and the bottom surface portion via joint metal fittings (see FIG. 6A). A top surface portion that serves as a mounting surface for the rail locking mounting portion 14a forms a sliding plate surface portion 14c. The slide plate surface portion 14c formed by the top surface portion slides the slide boom portion 13 along the slide rail portion 16 while being in slidable surface contact with the slide surface 16e of the slide rail portion 16. As shown in FIG. The base plate portion 14 is placed on the slide rail portion 16 using the top surface portion, which is the slide plate surface portion 14c to which the slide plate member 14b is attached, as a mounting surface. Due to the surface contact with the slide rail portion 16, the load applied during drilling is transmitted to the slide rail portion 16 and the base portion 11 to which it is attached in a stable state, and can be smoothly slid along the slide rail portion 16. be possible.

5(a), 5(b) and 6(a), 6(b), rail locking parts are provided on both side edge portions in the width direction Y of the base plate portion 14 of the slide boom portion 13. Adjacent to the mounting portion 14a, the stopper portion 18 is provided at one location. The stopper portion 18 is inserted into a hydraulic cylinder 18a fixed to the base plate portion 14 and an advance/retreat through hole 18c formed through the base plate portion 14 directly below the hydraulic cylinder 18a. and a stopper pin 18b as a pressing portion provided so as to protrude from the base plate portion 14 toward the slide rail portion 16 by moving back and forth in the vertical direction. The stopper portion 18 moves the stopper pin 18b downward to press the upper surface of the slide rail portion 16, thereby sliding along the slide rail portion 16 to a predetermined position by the adhesion frictional force of the slide boom. The portion 13 is stopped and fixed so that it can be firmly held at a predetermined position. Further, by moving the stopper pin 18b upward to release the state in which the upper surface of the slide rail portion 16 is pressed, the slide boom portion 13 can be made slidable along the slide rail portion 16. be possible.

Further, in the present embodiment, as shown in FIGS. 4A and 4B, a pair of hydraulic motors 19 are mounted on the rear portion of the substrate portion 14 of the slide boom portion 13 in the forward/backward direction X, and a pair of curved support plates. 15c, and provided symmetrically on both sides of the widthwise center line C of the substrate portion 14. As shown in FIG. Each hydraulic motor 19 is provided with a pinion member 19a protruding downward from the substrate portion 14 . A pair of pinion members 19a attached to each hydraulic motor 19 are attached to a rack member 20 (FIG. 4 ( b), by engaging with the racks 20a on both sides of FIG. A slide boom portion 13 made up of a boom main body portion 15 can be moved forward and backward along slide rail portions 16 by being pushed out and retracted in the forward and backward directions X. As shown in FIG.

That is, in the present embodiment, an advancing/retreating movement mechanism 22 for moving the slide boom portion 13 in the advancing/retreating direction X is provided in the region between the pair of slide rail portions 16 arranged in parallel. , a rack member 20 extending in the advancing/retreating direction X and attached to the center portion in the width direction of the region between the pair of slide rail portions 16 on the upper surface of the base portion 11, and the base portion of the slide boom portion 13. and a pinion member 19a which is attached to a hydraulic motor 19 fixed to the base portion 14 and arranged so as to protrude downward from the base portion 14. As shown in FIG.

In this embodiment, the slide rail portion 16 that guides the forward/backward movement of the slide boom portion 13 has, for example, an L cross-sectional shape, as shown in FIGS. (see FIG. 6A), and a pair of rack members 20 on both sides of the rack member 20 fixed to the center portion in the width direction Y on the upper surface of the base portion 11, parallel to the rack member 20 , and is fixed so as to extend in the advancing/retreating direction X (see FIG. 5(b)). The pair of slide rail portions 16 are attached to the base portion 11 by welding or the like by bringing the tip of one side portion 16a of the L-shaped cross section into contact with the upper surface portion of the base portion 11 (see FIG. 6A). are firmly fixed in a state in which the other side portion 16b, which is arranged above, protrudes outward from the one side portion 16a.

On the other side portion 16b of the slide rail portion 16 projecting outward from the one side portion 16a, the rail locking placement portion 14a of the base portion 14 of the slide boom portion 13 is arranged on the inner surface thereof. In a state in which the sliding plate member 14b can be brought into close contact with the outer peripheral surface, the other side portion 16b is held so as to be engaged from the outside. A liner plate 16c extending along the advancing/retreating direction X is embedded and fixed to the upper surface portion of the portion of the other side portion 16b immediately above the one side portion 16a (FIG. 5(b)). ), see FIG. 6(b)). By bringing the lower surface of the stopper pin 18b of the stopper portion 18 into close contact with the upper surface of the liner plate 16c, the upper surface of the slide rail portion 16 is pressed by the stopper pin 18b to fix the slide boom portion 13 at a predetermined position. , it is possible to more stably maintain the fixed state of the slide boom portion 13 due to the strong adhesion frictional force between them.

Further, in the present embodiment, a reinforcing rib plate 16d having a right-angled triangular shape extends between the outer surface of one side portion 16a of each slide rail portion 16 and the upper surface of the base portion 11. For example, By welding the oblique sides on both sides to these outer surfaces and upper surfaces, they are joined and fixed at a plurality of locations at predetermined intervals in the advancing/retreating direction X (see FIGS. 4(b) and 6(a)). This reinforces the joining state of the slide rail portion 16 to the base portion 11 and improves the fixing strength.

In the present embodiment, the pair of slide rail portions 16 preferably extend parallel to the endless track of the crawler type travel device 41 using a pair of endless tracks, and the operator's cab 42 in the base portion 11. , and the front pair of outrigger portions 12 (see FIGS. 1 and 2). This allows the slide rail portion 16 to move the base portion 14 of the slide boom portion 13 inside the square region R surrounded by the four outrigger portions 12 of the base portion 11 . Further, as a result, when the drilling rod 31 of the drilling device main body 30 connected to the leading end connecting portion 15b of the curved boom body portion 15 of the slide boom portion 13 is erected vertically, the drilling bit 31a at the lower end is can be moved in the advancing/retreating direction X while maintaining the state of being arranged outside the rectangular region R surrounded by the four outrigger portions 12 .

In this embodiment, the drilling device body 30 attached to the tip of the slide boom section 13 has the same configuration as the drilling machine used in the method for cutting pig iron in a blast furnace described in Japanese Patent Application Laid-Open No. 2020-2386, for example. A known punching device can be used. As shown in FIGS. 1 and 2, the punching device main body 30 includes a vertical base portion 32, a rotation driving portion 33 mounted on the vertical base portion 32 so as to be vertically movable, and a vertical base portion 32. A moving mechanism 34 for moving the rotary drive unit 33 up and down toward the hardened floor body 51, which is a solid substance of residual pig iron, and a moving mechanism 34 that is detachably attached to the rotary drive unit 33 and extends downward. and a drilling rod 31 having a drilling bit 31a attached to its lower end.

The drilling device main body 30 rotates the drilling bit 31a through the drilling rod 31 by the driving force of the rotary drive unit 33, and lowers the rotary drive unit 33 by the moving mechanism 34, thereby removing the floor of the residual iron. A vertical cutting hole 52 can be formed in the cured body 51 (see FIG. 3). In this embodiment, as the drilling bit 31 a attached to the lower end of the drilling rod 31 , a drilling bit with a core bit that cuts the circumferential portion of the vertical drilling hole 52 is preferably used. This makes it possible to effectively reduce the load during drilling compared to a drill-type drill bit that drills the vertical cut hole 52 over the entire cross section.

In this embodiment, as shown in FIGS. 1 and 4(a) and 4(b), the punching device main body 30 is attached to the slide boom portion via an attachment support portion 44 that constitutes a part of the punching device main body 30. 13 is rotatably connected to the tip connecting portion 15b of the boom body portion 15. As shown in FIG. The punching device main body 30 is connected to the leading end connecting portion 15b of the boom main body portion 15 of the slide boom portion 13 via the mounting support portion 44, so that the punching device main body 30 can be vertically moved and rocked. It is possible to support the boom body 15 of the boom section 13 .

In this embodiment, the four outriggers 12 are extended and contracted so that the base 11 can be horizontally installed. If there are irregularities, it may be difficult to accurately and horizontally install the base portion 11 only by extending and contracting the outrigger portions 12 . By interposing the mounting support portion 44, in addition to the rotatable connection state of the drilling device body 30 with respect to the boom body portion 15 of the slide boom portion 13, the vertical movement and rocking motion of the mounting support portion 44 allow the drilling device body to move. 30 can be easily adjusted with high accuracy so that the drilling rod 31 is vertically erected, and the height position of the tip of the drilling bit 31a can be accurately aligned along a predetermined cutting line. It becomes possible to adjust easily. In addition, while the drilling rod 31 is maintained vertically with high accuracy, the slide fixing mechanism 25 of the present embodiment moves the slide boom section 13 along the slide rail section 16 to move the drilling rod 31 and the drilling bit. 31a can be accurately moved in the forward/backward direction X along a predetermined cutting line.

The mounting support portion 44 that constitutes the punching device main body 30 includes a vertical guide plate portion 45 that grips the vertical base portion 32 so as to be slidable in the vertical direction, and the vertical guide plate portion 45 via a rotary connection plate 46 . It includes a mounting plate portion 47 that is rotatably supported along a plane perpendicular to the forward/backward direction X. A pair of lower connecting rib plates 47a protrude from the lower portion of the mounting plate portion 47 on the rear side in the advancing/retreating direction X. As shown in FIG. By pin-joining these lower connecting rib plates 47a to the rotating connecting pin member 15e attached to the leading end connecting portion 15b of the boom body portion 15 of the slide boom portion 13, the drilling device main body 30 is mounted together with the mounting support portion 44. It can be rotatably supported by the slide boom section 13 .

A pair of upper connecting rib plates 47b are provided on both sides of the mounting plate portion 47 on the rear side in the advancing/retreating direction X so as to protrude therefrom (see FIG. 4(b)). A jack connecting pin 47c is attached so as to span between the upper connecting rib plates 47b on both sides of the set. The jack connecting pin 47c has both ends of the jack connecting pin member 15f provided on the boom body portion 15 of the slide boom portion 13 at the portion between each pair of the upper connecting rib plates 47b that form a set of both side portions. The other ends of a pair of telescopic jacks 17 on both sides are rotatably connected to each other. As a result, the drilling device main body 30 connects the portion of the mounting support portion 44 above the front end connecting portion 15b of the slide boom portion 13 and the portion of the boom body portion 15 below the front end connecting portion 15b. 17 (see FIG. 4A), the punching rod 31 of the punching device main body 30 can be switched from a tilted state to a vertically standing state.

Further, in the present embodiment, lower swing support bases 47d are provided at the intermediate portion on the front side of the mounting plate portion 47 in the advancing/retreating direction X so as to protrude from both sides of the rotary connecting board 46. there is A pair of lower swing support bases 47d are rotatably connected at one end to an upper swing support base 45a provided so as to protrude from the upper part of the rear surface side of the longitudinal direction guide plate portion 45 in the advancing/retreating direction X. , are rotatably connected to each other.

The pair of swinging jacks 48 are, for example, hydraulic jacks, and move from lower swinging support bases 47d arranged on both sides of the rotary connecting board 46 to upper swinging jacks attached to the vertical guide plate portion 45. They are preferably arranged symmetrically in a state of being tilted toward the support base 45a toward the center line C in the width direction of the base portion 11 . By appropriately extending and contracting the pair of rocking jacks 48, the vertical direction guide plate portion 45 is rotated with respect to the mounting plate portion 47 around the rotary connection plate 46, thereby moving along a plane perpendicular to the advancing/retreating direction X. By rocking left and right, it is possible to easily adjust the punching rod 31 of the punching device main body 30 so that it stands vertically.

Further, on the rear surface side of the vertical guide plate portion 45, an upper vertical support rib 45b to which one end of the vertical jack 49 is connected is provided on both side portions below the rotary connection board 46. They are arranged and attached in pairs. The other end of the vertical jack 49 is attached to a lower vertical support rib 32a that protrudes from both sides of the lower end portion of the vertical base portion 32 of the punching device main body 30 on the rear surface side in the advancing/retreating direction X. connected to each other. As a result, the vertical direction jack 49 is extended and contracted, and the vertical direction base portion 32 is slid up and down with respect to the vertical direction guide plate portion 45, thereby maintaining the state in which the drilling rod 31 is preferably vertically erected. In this state, the drill bit 31a at the lower end is brought close to the surface of the floor hardened body 51 made of residual iron, and the drill rod 31 and the drill bit 31a can be accurately positioned at a predetermined drilling position along a predetermined cutting line. be possible.

As a continuous vertical cutting hole drilling method using the vertical cutting hole continuous drilling apparatus 10 of the present embodiment having the above-described configuration, a plurality of vertical cutting holes 52 are preferably formed along a predetermined cutting line by a line cutting method. In order to cut the hardened floor 51 (see FIG. 3) made of residual pig iron, the mounting support 44 is attached to the leading end connecting portion 15b of the boom body 15 of the slide boom 13. The slide boom section 13 is moved to the tip of the slide rail section 16 in the advancing/retreating direction X while the punching device main body 30 rotatably connected via the hole is preferably raised vertically (see FIG. 1). , the stopper portion 18 is driven to extend, thereby fixing the slide boom portion 13 to the distal end portion of the slide rail portion 16 .

In this state, the moving mechanism 40 by the pair of crawler type traveling devices 41 is operated to form a series of vertical cutting holes so that the pair of traveling devices 41 are arranged across the predetermined cutting line. The outriggers provided at the four corners of the base portion 11 are moved while the drilling device 10 is moved and the drilling bit 31a at the lower end of the drilling rod 31 is positioned at a predetermined drilling position along a predetermined cutting line. By extending the portion 12, the grounding plate portion 12c is grounded to the hardened floor member 51. As shown in FIG. The hardened floor body 51 is pressed by the ground plate portion 12c until the moving mechanism 40 preferably by the crawler-type traveling device 41 floats, so that the load of the entire vertical cutting hole continuous drilling device 10 is transferred to the outrigger portion 12. It becomes possible to support the hardened floor body 51 in a stable state.

Further, the slide boom portion 13 and the slide rail portion 16 are provided by extending the outrigger portions 12 provided at the four corner portions of the base portion 11 and grounding the ground plate portion 12c to the hardened floor body 51. Although it is possible to install the base 11 horizontally, for example, if the surface of the hardened floor member 51 has a considerable degree of unevenness, the base 11 can be accurately leveled only by the expansion and contraction of the outriggers 12. If it is difficult to install, as described above, the telescopic jack 17 connecting the attachment support portion 44 of the drilling device body 30 and the boom body portion 15 of the slide boom portion 13, or the The swinging jack 48 and the vertical jack 49 connecting the vertical guide plate portion 45 of the mounting support portion 44 and the vertical base portion 32 of the punching device main body 30 are telescopically driven to move the base portion 11 with high accuracy. It can be installed horizontally. In addition, the drill bit 31a of the drill rod 31 can be brought close to the surface of the hardened floor body 51 so that the drill bit 31a can be accurately positioned at a predetermined drilling position along a predetermined cutting line. Here, the levelness of the base 11 can be accurately adjusted while confirming it with a plurality of level gauges or the like preferably attached to predetermined positions of the base 11 .

As a result, the drilling rod 31 of the drilling device main body 30 is set vertically (perpendicularly) with high accuracy at the portion directly above the predetermined cutting line, and the rotary drive unit 33 is operated to move the drilling rod 31 and the drilling bit. 31a is rotated and guided by the vertical base portion 32 together with the rotary drive portion 33, and is moved downward by the moving mechanism 34, and the hardened floor body 51, which is a solid substance of residual pig iron, is moved by the drill bit 31a. A vertical cut hole 52 is drilled in the vertical direction. At this time, the current value (torque value = resistance force) and the thrust value (pressing value in the axial direction = reaction force) of the rotary drive unit 33 are measured in, for example, the operator's cab 42 or the control panel 43, and these measured values are If it becomes too high, it is controlled by, for example, slowing down the drilling speed. For example, when either or both of the current value and the thrust value suddenly decrease, assuming that the hole being drilled penetrates the floor hardened body 51 made of residual iron, drilling for forming each vertical cut hole 52 work is completed.

In this embodiment, as the drilling bit 31a, a drilling bit with a core bit that preferably cuts the circumferential portion of the vertical cutting hole 52 is used. If necessary, the portion of the core made of residual pig iron left inside the core bit 31a is removed. If a portion of the core remains at the lower end of the shaft by the drilling rod 31 or inside the drilling bit 31a, tilting the drilling rod 31 with the longitudinal base portion 32 in the upward direction allows the remaining core length A sufficient height is secured and the core portion is prevented from falling into the vertical cut hole 52.例文帳に追加In this state, for example, by hitting the perimeter of the drilling rod 31 and the drilling bit 31a with a hammer, the portion of the core that remains inside in such a manner as to be caught by the bit of the drilling bit 31a is vibrated and dropped. If it is difficult to remove the core or if the length of the core (=punch length) is too long, the drill bit 31a can be removed from the drill rod 31 to remove the core. In addition, if the core portion due to residual iron falls into the formed vertical cut hole 52 and remains in the hole, a wire or the like is wound around the core remaining in the hole and pulled out. can also

Preferably, after the core is removed from the drilling rod 31 and the drilling bit 31a, the drilling rod 31 and the vertical base portion 32 are returned to the vertically erected state, and then the drilling device main body 30 is mounted via the mounting support portion 44. Fixing of the connected slide boom portion 13 to the slide rail portion 16 by the stopper portion 18 is released. As a result, from the state where the slide boom section 13 is moved to the leading end of the slide rail section 16 in the advancing/retreating direction X together with the drilling device main body 30, operation in the advancing/retreating direction X is performed to form the next vertical cut hole 52 through. It is possible to slightly move along the slide rail portion 16 to the rear end side, which is the chamber 42 side.

Here, in the present embodiment, the core bit 31a has an outer diameter of 110 mm, a wall thickness of 10 mm, and an inner diameter of 90 mm. By moving the part 13, it is possible to form a straight through groove 53 by a line cut method in which a plurality of vertical cut holes 52 are continuously drilled while securing a lap of 10 mm. It becomes possible to cut the floor hardened body 51 by residual pig iron.

In addition, the slide rail portion 16 has a length of, for example, 1000 mm in the area between the driver's cab 42 and the pair of outrigger portions 12 in front of the base portion 11. It is installed extending in the advance/retreat direction X by the added extension. As a result, the outrigger portion 12 is extended to move the slide boom portion 13 to which the drilling device main body 30 is connected while the vertical continuous drilling hole drilling device 10 is installed at a predetermined position on the cutting line. , 10 vertical cut holes 52 are continuously formed without moving the drilling device 10 for connecting vertical cut holes while moving along the slide rail portion 16 to the rear end side in the advancing/retreating direction X, for example, by 100 mm. It becomes possible to go on.

With the outrigger portion 12 extended and the vertical cutting hole continuous drilling device 10 installed at a predetermined position on the cutting line, the same operation as described above is repeated to perform vertical cutting at preferably 10 locations. After the holes 52 are continuously formed, the ground plate portion 12c is separated from the hardened floor member 51 by contracting the outrigger portion 12, and the drilling device 10 is made movable via the moving mechanism 40. FIG. After that, the vertical cutting hole continuous drilling device 10 is moved to the next construction location on the line of the cutting line and re-installed, and the same work is repeated to continuously penetrate through the plurality of vertical cutting holes 52. It becomes possible to form the groove 53 by a line cutting method.

As a result, in the present embodiment, the continuous vertical cutting hole drilling method using the continuous vertical cutting hole drilling device 10 moves the vertical continuous cutting hole drilling device 10 to a predetermined position on the hardened floor body 51 by the moving mechanism 40 . (For example, if there is a previously drilled through groove 53, a first step of moving to a position continuous with the vertical cut hole 52 at the rear end), and the outrigger part 12 toward the hardened floor body 51 A second step of fixing the continuous vertical cutting hole drilling device 10 on the floor hardened body 51 by extending and grounding the solid substance 51, and moving the slide boom portion 13 to the tip portion side of the slide rail portion 16 Alternatively, it comprises a third step of continuously forming the vertical cut holes 52 in the hardened floor body 51 by the punching device main body 30 while moving forward and backward toward the rear end portion.

Further, in the method for drilling continuous vertical cut holes according to the present embodiment, in the third step, the slide boom section 13 is moved to the position of the tip of the slide rail section 16, and the drilling device main body 30 is moved to the hardened floor body 51. a fourth step of moving to a predetermined position above; a fifth step of punching and forming a vertical cut hole 52 in the hardened floor body 51 by the punching device main body 30; The drilling device body 30 is moved toward the side by a distance corresponding to the diameter of the vertical cut hole 52 formed by drilling, so that the next vertical cut hole 52 is connected to the vertical cut hole 52 formed by drilling. and a seventh step of drilling and forming the next vertical cut hole 52 in the hardened floor body 51 by the drilling device main body 30 . The step of moving the slide boom portion 13 to the position of the tip portion of the slide rail portion 16 in the fourth step may be performed before moving the drilling device 10 for connecting vertical cutting holes in the first step.

Furthermore, in the method for drilling continuous vertical cut holes of the present embodiment, in the third step, the eighth step of drilling and forming the vertical cut holes 52 in the hardened floor body 51 by the drilling device main body 30, and the slide boom portion 13 is slid. The next vertical cut hole 52 is connected to the vertical cut hole 52 formed by moving toward the distal end side of the rail portion 16 by a distance corresponding to the diameter of the formed vertical cut hole 52. and a tenth step of drilling and forming the next vertical cutting hole 52 in the hardened floor body 51 by the punching device body 30. .

In addition, in the continuous vertical cutting hole drilling method of the present embodiment, the drilling device body 30 is further connected to the slide boom section 13 so as to be rotatable in the elevation direction and tiltable back and forth. The step of adjusting the rotation and inclination of the drilling device body 30 in the vertical direction so that the drilling device 30 can drill vertically with respect to the hardened floor body 51 can be performed after the fourth step or the ninth step. is.

In addition, in the continuous vertical cutting hole drilling method of the present embodiment, the drilling device body 30 further includes a drill bit 31a for cutting the hardened floor body 51, and the drill bit 31a Since the circumferential portion of the vertical cut hole 52 to be drilled is cut, in the above-described fourth step or eighth step, after the vertical cut hole 52 is formed, it is cut by the drill bit 31a, It is preferable to remove the residual pig iron remaining in the boring bit 31a and forming the hardened floor body 51 from the boring bit 31a.

Then, in the method for making continuous vertical cut holes according to the present embodiment, the fifth to seventh steps or the eighth to tenth steps described above are performed according to the total length of the slide rail portion 16 and the diameter of the vertical cut holes 52. can be repeated a number of times determined by

FIGS. 7A to 7E are diagrams for explaining the work procedure of the continuous vertical cutting hole drilling method by the vertical continuous drilling hole drilling device 10, by way of example. As shown in FIG. 7( a ), the moving mechanism 40 moves the vertical drilling device 10 to a predetermined position above the hardened floor body 51 . In other words, the moving mechanism 40 is driven to move the vertical cutting hole continuous drilling device 10 to a position where a vertical cutting hole is desired to be drilled. At this time, the slide boom portion 13 may be arranged at the tip position of the slide rail portion 16, or may be arranged at another position.

As shown in FIG. 7( a ), by extending the outrigger portion 12 toward the hardened floor body 51 and grounding the hardened floor body 51 , the drilling device 10 for connecting vertical cutting holes can be set to harden the floor. It is fixed on the body 51 . That is, the outrigger portion 12 is extended until the grounding plate portion 12c contacts the hardened floor member 51 . Similar operations are performed for all four outrigger portions 12 . In this case, the amount of extension of the four outrigger portions 12 is adjusted so that the drilling device 10 for connecting vertical cutting holes becomes horizontal. Whether or not it is horizontal is determined by a spirit level or the like provided in the drilling device 10 for connecting vertical cut holes.

As shown in FIG. 7( a ), the slide boom section 13 is moved to the position of the tip of the slide rail section 16 to move the punching device main body 30 to a predetermined position above the hardened floor member 51 . That is, by rotating the hydraulic motor 19, the pinion member 19a meshes with the rack 20a, and the slide boom section 13 can be moved to a desired position.

As shown in FIG. 7A, the lateral rotation and inclination of the punching device body 30 with respect to the mounting plate portion 47 are adjusted so that the punching device body 30 can drill vertically with respect to the hardened floor body 51. can also The lateral rotation of the punching device body 30 with respect to the mounting plate portion 47 is adjusted by appropriately extending and retracting the rocking jack 48. In FIG. can be adjusted. Further, the adjustment of the inclination of the punching device main body 30 in the front-rear direction can be performed by driving the telescopic jack 17. In FIG. direction) can be adjusted.

As shown in FIG. 7B, the punching device body 30 is moved by the moving mechanism 34 toward the hardened floor body 51 to form a vertical cut hole in the hardened floor body 51 . Here, a punching rod 31 is provided in the punching device main body 30, and a punching bit 31a is attached to the tip of the punching rod 31. As shown in FIG. When the drill bit 31a is rotated and the drilling device main body 30 is lowered by the moving mechanism 34, a vertical cut hole can be drilled in the hardened floor body 51. As shown in FIG.

As shown in FIG. 7(c), the residual pig iron remaining in the boring bit 31a and forming the hardened floor body 51 is removed from the boring bit 31a. For example, by hitting the periphery of the drilling bit 31a with a hammer in a state in which residual iron remains in the drill bit 31a, vibration is applied to the residual piggy to drop it from the drill bit 31a.

As shown in FIG. 7(d), the slide boom section 13 is moved toward the rear end side of the slide rail section 16 by a distance corresponding to the diameter of the vertical cut hole that has been bored. The punching device main body 30 is positioned so that the next vertical cutting hole is connected to the existing vertical cutting hole. For example, if the diameter of a vertical cut hole that has already been punched is 110 mm, the punching device main body 30 is retreated by 100 mm for positioning, assuming that a lap of 10 mm is secured.

Again, as in FIG. 7(b), the next vertical cut hole is formed in the hardened floor body 51 by the punching device main body 30. As shown in FIG. That is, the punching device main body 30 is lowered by the moving mechanism 34 to punch and form the next vertical cutting hole.

In FIG. 7(e), the operations (b) to (d) are repeated a predetermined number of times. In the above description, an example in which a vertical cut hole is formed while retreating the slide boom portion 13 toward the rear end portion of the slide rail portion 16 has been described, but the present invention is not limited to this. For example, on the contrary, the slide boom portion 13 may be moved forward toward the distal end portion of the slide rail portion 16, and a series of vertical cut holes may be formed. After that, the outrigger section 12 is separated from the hardened floor member 51 and moved to the next working position by the moving mechanism 40 . When forming the vertical cut hole 52 continuously with the previously formed through groove 53, the vertical cut hole connection drilling device 10 is retracted straight, and the drilling device main body 30 is moved to the frontmost part of the slide rail portion 16. In this state, the rear end of the through groove 53 and the boring bit 31a are stopped at a position where they are continuous with a predetermined lap. Since this is equal to the distance that the slide boom portion 13 moves on the slide rail portion 16, it is sufficient to retreat about 1 m. For the subsequent procedure, return to FIG. 7A and perform the work.

According to the continuous vertical cutting hole drilling apparatus 10 of the present embodiment having the above-described configuration, the plurality of vertical cutting holes 52 are formed in the floor hardened body 51 which is a solid substance made of residual pig iron which is a hard material. are arranged preferably in a straight line so that they can be formed in a stable state with good precision and efficiency.

That is, the continuous vertical cutting hole drilling apparatus 10 of the present embodiment includes a base portion 11 that can move on a hardened floor portion 51 that is a solid substance via a moving mechanism 40, and four sides of the base portion 11. An outrigger portion 12 provided at a corner portion, a slide boom portion 13 that moves forward and backward along the upper surface portion of the base portion 11, a slide rail portion 16 that guides the forward and backward movement of the slide boom portion 13, and the slide boom portion 13. The slide rail portion 16 is configured to include the base portion 14 of the slide boom portion 13 inside the rectangular area R surrounded by the outrigger portion 12. designed to be moved. Further, the slide boom portion 13 is erected from the substrate portion 14 as a member continuous with the substrate portion 14 placed on the slide rail portion 16, and is bent sideways via the bent portion 15a. and a boom body portion 15 for arranging a distal end connection portion 15b to which the punching device body 30 is connected outside the area directly above the base plate portion 14. The punching device body 30 vertically extends the boring rod 31. The drill bit 31a is connected to the tip connecting portion 15b of the boom main body portion 15 so that the drill bit 31a is arranged outside the rectangular region R formed by the outrigger portion 12 when the boom body portion 15 is erected.

As a result, when the vertical cutting holes 52 are drilled in the hard floor hardened body 51 formed by lumps of residual pig iron, for example, the weight of the vertical cutting hole continuous drilling device 10 is Since the outriggers 12 provided at the four corners of the frame can support the hardened floor body 51 in a stable state, the weight of the heavy equipment can be transferred to the hardened floor body 51 only by the grounding portion of the moving mechanism such as the crawler. Compared to the conventional drilling device that tends to be unstable due to being supported, the drilling rod 31 is vertically erected by the balance between the weight of the drilling device 10 for connecting vertical cutting holes and the load during drilling. It is possible to firmly and stably hold the pressed state and form the vertical cut hole 52 vertically with high accuracy.

In addition, since the boom main body 15 of the slide boom 13 is erected in a curved state from the base 14 as a continuous member without intervening a rotation connecting portion or an expansion/contraction portion, the overall shape of the boom 15 is uniform. Being compact and simple, it is possible to directly and efficiently transmit the load from the punching device main body 30 connected to the tip connecting portion 15b to the substrate portion 14 . Further, since the base plate portion 14 of the slide boom portion 13 moves along the slide rail portion 16 attached to the base portion 11 inside the area R surrounded by the four outrigger portions 12, the load from the boom main body portion 15 is reduced. The applied load can be distributed to all the four outrigger parts 12 and efficiently transmitted, and the floor part hardened body 51 can be supported in a more stable state through the four outrigger parts 12.例文帳に追加becomes possible.

As a result, according to the present embodiment, it is possible to effectively suppress the positional deviation of the drilling device main body 30 and the drilling bit 31a, and to avoid the occurrence of an excessive overturning moment. While the device body 30 and the drilling rod 31 are held vertically, the plurality of vertical cut holes 52 are preferably arranged in a straight line so that the holes can be stably formed with high accuracy.

Further, according to the continuous vertical cutting hole drilling device 10 of the present embodiment, the slide fixing mechanism 25 is a slide rail portion provided on the base portion 11 and provided with the slide surface 16e extending in the advancing/retreating direction X. 16, and a sliding plate surface portion 14c that slides the slide boom portion 13 along the slide rail portion 16 while being in slidable surface contact with the slide surface 16e provided on the base portion 14 of the slide boom portion 13. By pressing the pressing portion 18b provided so as to protrude from the base plate portion 14 of the slide boom portion 13 toward the slide rail portion 16 against the slide rail portion 16, the slide boom portion 13 is moved to the slide rail portion 16 by the adhesion friction force. and a stopper portion 18 that can be fixed at a predetermined position.

As a result, the base plate portion 14 is placed on the slide rail portion 16 using the slide plate surface portion 14c to which the slide plate member 14b is attached as a mounting surface, so that the slide boom portion 13 and the slide rail portion 16 are mounted. Due to the surface contact, it is possible to smoothly slide along the slide rail portion 16 while transmitting the load applied during drilling to the slide rail portion 16 and the base portion 11 to which it is attached in a stable state. become. Further, by operating the stopper portion 18 , the slide boom portion 13 can be fixed at each predetermined position of the slide rail portion 16 . As a result, the hardened floor body 51, which is a solid substance made of a hard material, can support a large load applied during drilling in a stable state by the weight of the heavy machinery without having to re-install the heavy machinery. The cutting holes 52 can be formed in a straight line and efficiently formed by the continuous vertical cutting hole drilling device 10 .

Furthermore, according to the present embodiment, once the vertical cutting hole continuous drilling device 10 is installed on the line of the predetermined cutting line, the slide boom section 13 is moved along the slide rail section 16 in that state. Since a plurality of (10 in this embodiment) vertical cutting holes 52 can be formed continuously in a straight line, preferably without meandering, the drilling device 10 is re-installed for each vertical cutting hole 52. The through grooves 53 formed by the plurality of vertical cut holes 52 are not necessary, and the number of work cycles such as contraction of the outriggers 12, movement of the drilling device 10, alignment of the drilling device main body 30, and contacting of the outriggers 12 is reduced. can be formed efficiently and speedily.

Furthermore, in this embodiment, a drilling bit with a core bit is used as the drilling bit 31a attached to the lower end of the drilling rod 31, which effectively reduces the load during drilling compared to a drill-type drilling bit. Therefore, it becomes possible to increase the hole diameter of the vertical cut hole 52 . In addition, as a result, the number of vertical cut holes 52 for line cutting, for example, can be reduced, so that the through grooves 53 can be formed by a plurality of vertical cut holes 52 more efficiently. Since the drilling bit 31a by the core bit drills while leaving the core portion inside, it is possible to form the vertical cut hole 52 in the vertical direction with higher accuracy using the inner core portion as a guide. become.

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications are possible. For example, the moving mechanism does not necessarily have to be a crawler-type traveling device using a pair of endless tracks, and may be other known various moving mechanisms used in heavy construction equipment. . The advance/retreat movement mechanism for moving the slide boom portion in the advance/retreat direction along the slide rail portion does not necessarily have to be based on meshing between the pinion member and the rack member, and other known various movements such as screw jacks can be used. It may be a mechanism. The drilling bit does not necessarily have to be a core bit for cutting the circumferential portion of the vertically cut hole, and may be a drill bit or the like for cutting the entire cross section of the vertically cut hole. The floor hardened body, which is a solid material in which vertical cutting holes are formed by a continuous vertical cutting hole drilling device, is produced by the residual pig iron accumulated at the bottom of the blast furnace in the steel mill and the residual pig iron discharged from the blast furnace. It does not necessarily have to be a hardened floor member, and may be other various hardened floor members made of a hard material such as reinforced concrete. The vertical cut holes need not be drilled through the solid material. In other construction methods other than the line cut construction method for forming through grooves, the apparatus for connecting vertical cut holes of the present invention can also be used when making continuous vertical cut holes. The vertical cut holes to be drilled do not necessarily have to be formed in a plurality of straight lines. can be formed in a row.

10 vertical cutting hole connecting drilling device (drilling device)
11 base part 12 outrigger part 12c ground board part 13 slide boom part (boom part)
14 Board portion 14a Rail locking mounting portion 14b Slide plate member 14c Slide plate surface portion (top surface portion of rail locking mounting portion)
15 boom main body 15a bent portion 15b tip connecting portion 15c curved support plate 15d connecting box portion 16 slide rail portion 17 telescopic jack 18 stopper portion 18b pressing portion (stopper pin)
19 Hydraulic motor 19a Pinion member 20 Rack member 25 Slide fixing mechanism 30 Punching device body 31 Punching rod 31a Punching bit (core bit)
32 Vertical base portion 33 Rotation drive portion 34 Moving mechanism 40 Moving mechanism 41 Crawler-type travel device 42 Operator cab 43 Control panel 44 Mounting support portion 45 Vertical guide plate portion 46 Rotation connecting plate 47 Mounting plate portion 48 Rocking jack 49 Vertical jack 50 Blast furnace 51 Hardened floor (solid substance)
52 vertical cut hole 53 through groove R quadrangular area X surrounded by outrigger portion 12 advancing/retreating direction Y width direction C width direction center line of substrate portion

Claims (17)

A continuous vertical cutting hole drilling device for forming a plurality of continuous vertical cutting holes to be drilled in a solid substance,
A base that can move on the solid material via a moving mechanism, outriggers provided at four corners of the base, and supported by the base and along the upper surface thereof. a slide boom portion that advances and retreats by means of a lever; a slide rail portion installed on a base that guides the advance and retreat movement of the slide boom portion; is composed of
The slide rail portion is provided so as to move the base portion of the slide boom portion inside a rectangular area surrounded by the outrigger portions of the base portion,
The slide boom portion is erected from the base plate portion as a continuous member without interposing a rotation connecting portion or an expansion/contraction portion with the base plate portion slidably placed on the slide rail portion. a boom body portion that is bent sideways through a portion so that a tip connecting portion to which the punching device main body is connected is arranged outside the region directly above the base plate portion;
The piercing device main body is arranged such that when the piercing rod of the piercing device body is erected vertically, the piercing bit at the lower end is arranged outside the quadrangular area surrounded by the outriggers. A vertical cutting hole connecting drilling device connected to the connecting part. The drilling device main body is connected to a tip connecting portion of the boom main body portion so as to be rotatable in the elevation direction, and the portion of the drilling device main body above the tip connecting portion and the tip connecting portion of the boom main body 2. The drilling rod with continuous vertical cutting holes according to claim 1, wherein the drilling rod can be switched from a tilted state to a vertically standing state by driving a telescopic jack that connects the lower portion to the lower portion. Device. a slide fixing mechanism for slidingly moving the slide boom portion in a forward/backward direction so as to be fixed at a predetermined position along the base portion;
The slide fixing mechanism includes the slide rail portion provided on the base portion and having a slide surface extending in the advancing and retreating direction, and the slide surface provided on the base portion of the slide boom portion. a slide plate surface portion that slides the slide boom portion along the slide rail portion in a movably surface-contact state; 3. A stopper portion capable of fixing the slide boom portion at a predetermined position of the slide rail portion by a contact frictional force by pressing the pressing portion against the slide rail portion. vertical cutting hole continuous drilling device. The sliding plate surface portion provided on the base portion of the slide boom portion is a sliding plate member using a plate-shaped self-lubricating bearing on the mounting surface of the mounting portion mounted on the slide rail portion. 4. The vertical drilling device according to claim 3, formed by mounting a . The stopper portion is inserted into a hydraulic cylinder fixed to the base plate portion of the slide boom portion and an advance/retreat through-hole formed through the base plate portion, and is moved from the base plate portion by the operation of the hydraulic cylinder. 5. A continuous vertical cutting hole drilling device according to claim 3 or 4, comprising said pressing portion provided so as to protrude toward said slide rail portion. 6. The continuous vertical cutting hole according to any one of claims 3 to 5, wherein the slide rail portions extend in the advance and retreat direction, are arranged in a pair in parallel, and are fixed to the upper surface portion of the base portion. Device. 7. A continuous vertical cutting hole drilling device according to claim 6, wherein an advancing/retreating movement mechanism for moving said slide boom portion in an advancing/retreating direction is provided in a region between said pair of said slide rail portions arranged in parallel. The forward/backward movement mechanism includes a rack member that extends in the forward/backward direction and is attached to a center portion in the width direction of the region between the pair of slide rail portions on the upper surface of the base portion, and the slide boom portion. 8. A continuous vertical cutting hole drilling device according to claim 7, further comprising a pinion member attached to a hydraulic motor fixed to a base portion of said base portion and projecting downward from said base portion. The moving mechanism is a travel device using a pair of endless tracks arranged on both sides of the base portion, and the slide rail portion extends parallel to the endless tracks of the travel device. 9. The drilling device for connecting vertical cutting holes according to any one of claims 1 to 8, wherein the vertical cutting holes are arranged as one. The continuous vertical cutting holes according to any one of claims 1 to 9, wherein the drilling bit attached to the lower end of the drilling rod is a drilling bit by a core bit that cuts the circumferential portion of the vertical cutting hole. perforator. The continuous vertical cutting hole drilling device according to any one of claims 1 to 10, wherein the solid matter is residual pig iron discharged from a blast furnace in an ironworks. A continuous vertical cutting hole drilling method by the vertical cutting hole continuous drilling device according to any one of claims 1 to 11,
a first step of moving the drilling device for connecting vertical cutting holes to a predetermined position on the solid material by the moving mechanism;
a second step of securing the vertical drilling device over the solid material by extending the outrigger portion toward and grounding the solid material;
a third step of continuously forming vertical cutting holes in the solid material by the punching device main body while moving the slide boom portion back and forth toward the front end side or the rear end side of the slide rail portion;
A method of drilling a series of vertical cut holes, including: In the third step,
a fourth step of moving the slide boom portion to the position of the tip portion of the slide rail portion to move the drilling device main body to a predetermined position above the solid material;
a fifth step of drilling a vertical cutting hole in the solid material with the drilling device body;
The slide boom portion is moved toward the rear end side of the slide rail portion by a distance corresponding to the diameter of the vertical cut hole formed, and the vertical cut hole formed is subjected to the next vertical cutting. a sixth step of positioning the punching device body so that the holes are connected;
a seventh step of drilling the next vertical cut hole in the solid material with the drill body;
13. The method for drilling continuous vertical cutting holes according to claim 12, wherein: In the third step,
an eighth step of drilling a vertical cutting hole in the solid material with the drilling device body;
The slide boom portion is directed toward the distal end side of the slide rail portion, and is moved by a distance corresponding to the diameter of the vertical cut hole formed so that the next vertical cut hole is inserted into the vertical cut hole formed. a ninth step of positioning the punching device body so that
a tenth step of drilling the next vertical cut hole in the solid material with the drill body;
13. The method for drilling continuous vertical cutting holes according to claim 12, wherein: The drilling device main body is further connected to the slide boom section so as to be rotatable in an elevation direction and tiltable forward and backward,
12 to 14, wherein the step of adjusting the rotation and inclination of the piercing device body so that the piercing device body can pierce the solid substance vertically is performed after the fourth step or the ninth step. The method for drilling continuous vertical cut holes according to any one of the above. The drilling device body further comprises a drilling bit for cutting the solid substance, the drilling bit cutting a circumferential portion of the vertical drilling hole drilled in the solid substance,
In the fourth step or the eighth step, after the formation of the vertical cutting hole, the residual pig iron that constitutes the solid material cut by the boring bit and left in the boring bit is removed from the boring bit. The method for drilling continuous vertical cutting holes according to any one of claims 12 to 15, wherein the holes are removed. 17. Any one of claims 12 to 16, wherein the fifth step to the seventh step or the eighth step to the tenth step are repeated a number of times determined according to the total length of the slide rail portion and the diameter of the vertical cut hole. 2. The method for drilling continuous vertical cut holes according to claim 1.

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