JP2591385Y2 - Drilling auxiliary equipment for foundation work - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drilling auxiliary device for foundation work.

[0002]

2. Description of the Related Art Construction of transmission towers and the like requires the construction of mountainous terrain due to the enlargement of facilities and difficulty in acquiring land. Excavation of a deep foundation is indispensable in the construction of a steel tower in this mountainous area, and the excavation is often about 15 to 25 m. At this depth, sediment, soft rocks and cracked medium hard rocks occur frequently, and their geology varies unevenly depending on the excavation site. Due to such geological unevenness and topographical conditions, it is difficult to limit drilling to a specific method.Therefore, as a method that works in a small turn, a breaker or manual rock drill that requires no space and that can be easily changed is generally used. Have been. Such breakers and manual rock drills rely on 100% human power, except for those mounted on some underground excavators. In particular, excavation of soft and medium hard rocks, shaping work accompanying the excavation, and loading of surplus soil into the buckner are all manual operations. Taking the breaker work as an example, the work of holding a heavy breaker and excavating it, scraping the remaining soil with a scoop, putting it into a tegami, lifting the tegami and putting it into a buckner is repeated many times. For this reason, it becomes a poor working condition accompanied by remarkable heavy muscle labor, and quick improvement is demanded.

[0003] The present invention has been devised in order to solve the above-mentioned problems. Simple foundation excavation with a structure that can significantly reduce heavy muscle labor while taking advantage of manual excavators such as breakers and manual rock drills in human foundation excavation work that cannot introduce mechanized equipment To provide an auxiliary device.

[0004]

According to the present invention, in order to achieve the above-mentioned object, the present invention is suspended from a hole outside a hole around a center casing which is suspended in a foundation drilling hole so as to be vertically movable. A ring-shaped hanger rail supported by a liner plate with a support in the radial direction is provided, and a plurality of transporters movable along the hanger rail are attached to the hanger rail, and a certain transporter is connected via a balancer. A configuration in which a manually operated drilling tool is suspended freely in the height direction of the foundation drilling hole, and an earth removal tool is suspended in a separate carrier via a hoist so as to be movable in the height direction of the foundation drilling hole. It was done.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 8 show an embodiment of the excavation assistance device for foundation work according to the present invention in use. 1 and 2
In the figure, A is a ground pile, and B is a liner plate for earth retaining provided on the side surface of the foundation hole a being excavated in the ground pile A. Reference numeral 1 denotes a center casing for removing the slip inserted into the foundation hole a, and 2 denotes a backner for removing the slip which is disposed on the floor b and collects excavated soil. Be lifted. Reference numeral 3 denotes a ring-shaped hanger rail that substantially concentrically surrounds the front end region of the center casing 1, and a plurality of arc-shaped divided portions 3a made of an I-beam, an H-beam, or the like are connected by a connecting member 30 such as a connecting plate. It is removably connected to form a ring. A bracket 31 is fixed to the hanger rail 3 at least at a position where the circumference is divided into two equal parts, and ends of the wires 40, 40 wound around winches 4, 4 installed outside the holes in the bracket 31. Are connected, whereby the hanger rail 3 is suspended in a hollow shape and is moved up and down by driving the winches 4 and 4.

Further, the hanger rail 3 has a plurality of (three in this embodiment) supports 5a, 5 extending in the radial direction.
b, 5c at equal intervals, and their supports 5a, 5b,
The hanger rail 3 is prevented from swinging by the liner plate B by 5c. The support 5a,
5b and 5c may be of an automatic telescoping type such as a fluid pressure cylinder. In this embodiment, a pin-insertion type is used, and it is rotatable in a horizontal plane with the hanger rail 3 as a fulcrum. Direction, and the at least one support 5a can be automatically rotated instead of manually. See Support 5b,
As shown in FIG. 3 and FIG. 4, 5 c has a sleeve 52 and a seat 53 at its tip which comes into contact with a valley B ′ of the liner plate B.
Rod 53 having a base end inserted into sleeve 52
And a pin 54 inserted into an adjustment hole 531 provided at an appropriate interval in the rod through a hole provided in the sleeve 52, and a bearing cylinder 52 perpendicular to the axis is provided at the base end of the sleeve 52.
It has 0. The bearing cylinder 520 is placed in a fulcrum frame 55 fixed on the hanger rail 3 by welding or the like.
Is inserted, and the support shaft 56 is inserted thereinto, so that the supports 5b and 5c can rotate about the support shaft 56 as a fulcrum by a force applied to the sleeve 52 as shown by the imaginary line in FIG. ing.

The other support 5a is shown in FIGS.
A sleeve 52 having a bearing cylinder 520 at the base end orthogonal to the axis, and a valley B ′ of the liner plate B at the tip.
A rod 53 having a movable seat portion (preferably a rubber rolling wheel) 530 abutting on the base member and having a proximal end inserted into the sleeve 52; and an adjustment hole 531 provided at an appropriate interval in the rod through a hole provided in the sleeve 52. A fulcrum frame 55 in which the bearing cylinder 520 is fixed on the hanger rail 3 is provided.
Is interpolated. Further, an actuator 57 driven by a fluid pressure such as air as a drive source is fixed to the fulcrum frame 55, and an output shaft or a support shaft 56 coupled thereto is fitted into the bearing cylinder 520 and attached to the actuator 57. By operating the control valve 570, the support shaft 56 is mechanically rotated, and the support 5a is rotated in a direction approaching the hanger rail 3 as indicated by an arrow in FIG. And a part of the hanger rail 3, for example, as shown in FIG.
A manifold 11 is fixed to the hanger rail 3 near the support 5a, and a hose 12 for supplying a pressure fluid, for example, pressurized air from a supply source (not shown) outside the hole is connected to the manifold 11. The discharge port 11 is connected to a control valve 570 of the rotary actuator, a control valve of a hoist described later, and the like.

[0008] Reference numerals 6a and 6b denote a plurality of carriers mounted on the hanger rail 3 and movable along the hanger rail 3 by 360 degrees. The number of carriers can be increased or decreased depending on the cross-sectional area of the hole or the number of underground workers. In this embodiment, three excavators are used, and a manually operated excavation tool, for example, a breaker or rock drill 8 is suspended via a balancer 7 on one conveyer 6a.
An earth removal tool 10 is suspended from b and 6b via a hoisting machine 9. Each of the transporters 6a, 6b is provided with wheels 60, 60 which are in contact with the hanger rail 3 on a frame 61 having a suspension plate 62 as shown in FIG. Although the type and type of the balancer 7 are arbitrary, a spring balancer is used in this embodiment. For example, a tapered drum 71 for winding a wire rope 73 is rotatably provided in a casing 70, and a spring 72 in the form of a mainspring is wound coaxially with the tapered drum 71.
Means 74 for adjusting the spring force of the drilling tool 8 so as to obtain a balance force corresponding to the weight of the excavating tool 8. The tip of the wire rope 73 is detachably connected to a holder 80 connected to the body of the excavating tool 8, and is connected to the balancer 7.
Is suspended on the frame 61 of the transporter 6a by a suspension fitting 75 attached to the casing 70. Of course, the casing 70 may be directly fixed to the frame 61 of the transporter 6a.

The hoist 9 may be a chain block or a winch, but in this embodiment, a hydraulic hoist is used. That is, as shown in FIG. 8, a drum around which a wire rope 93 is wound around a casing 90, a fluid pressure motor 91 and a brake for driving and rotating the drum via a speed reducer, and start / stop (start / stop) of the fluid pressure motor 91 And a control valve (which may be a remote control type) 92 for controlling normal rotation or reverse rotation. The control valve 92 is connected to the discharge port of the manifold 11 via the hose 13.
The end of the wire rope 93 is connected to the earth removal tool 10, for example, a hanging portion 100 of the handbag, and the hoist 9 is hung on the frame 61 of the transporter 6 b by a hanging metal fitting attached to the casing. Carrier 6
b may be fixed to the frame 61.

[0010]

Next, the operation and operation of the present invention will be described. The hanger rail 3 is assembled in a ring shape by connecting the arc-shaped divided portions 3a outside the hole, and after attaching the hose 12 led from the outside of the hole to the manifold 11, the winches 4 and 4 installed outside the hole. Wire 40 from
40 suspends the center casing 1 at an arbitrary position. Then, the length of the supports 5b and 5c is adjusted, and the seat 530 at the tip of the rod is inserted into the valley B 'of the liner plate B.
And the control valve 570 is operated. As a result, the adjusting support 5a rotates in the horizontal plane via the support shaft 56, and the seat 530 at the tip fits into the valley B 'of the liner plate B. Thereby, the hanger rail 3 is fixed to the liner plate B at three points. Carrier 6
a, 6b are set on the hanger rail 3, the balancer 7 is attached to the transporter 6a, and the wire rope 73 of the balancer 7 is attached.
Is connected to the digging tool 8, and the digging tool 8 is suspended. Further, a hoist 9 is attached to the transporter 6b, and the discharging device 10 is connected to and suspended from the tip of the wire rope 93. Preparation is now complete.

Drilling tools such as breakers have a weight of 20 kg or more. Conventionally, when performing excavation work, excavation is carried out by supporting the weight with human power. Therefore, continuous use causes great fatigue and is difficult. there were. However, in the present invention, the weight of the excavating tool 8 is supported by the balancer 7 mounted on the transporter 6a, and the excavating tool 8 can freely move in the foundation hole height direction by pulling the wire rope 73, In addition, since the balancer 7 is held by the transporter 6a and the transporter 6a is movable along the hanger rail 3, the excavating tool 8 can be moved in the circumferential direction of the foundation hole, and the working position can be extremely changed. Easy. Therefore, there is almost no need to manually support the tool weight, and the floor and the hole wall can be excavated only by pressing a bit or the like to the excavation target location, and significant fatigue reduction can be achieved. Also, when processing the remaining soil generated by excavation, the earth removal tool 10 is suspended movably in the height direction by the hoist 9, and the hoist 9 is moved along the hanger rail 3 by the carrier 6b. Because it is movable,
Can be quickly arranged at the place where the excavation has been completed, where the remaining soil is collected and put into the earth removal tool 10, and then the remote control valve is operated to operate the hoist 9 and the wire rope 93 is wound. As a result, the earth removal tool 10 can be lifted to the buckner 2 without any effort,
The residual soil treatment can also greatly reduce fatigue.

Next, when excavation advances and the setup is changed,
The control valve 570 of the actuator 57 is operated. Thus, the support 5a for adjustment with the support shaft 56 as a fulcrum.
Is turned off the liner plate B, so that the hanger rail 3 is free in the radial direction in the hole. Therefore,
If the hanger rail 3 is lowered to an appropriate lower position by driving the winches 4 and 4 and the support arm 5a for adjustment is again rotated at a predetermined position so as to extend in the radial direction,
It is fixed again. Therefore, it is possible to freely and easily respond to the excavation depth.

[0013]

According to the present invention described above, the rope is suspended from the outside of the hole so as to be movable in the vertical direction around the center casing 1 for running out from the outside of the hole and has a radius. Support direction 5a, 5
A ring-shaped hanger rail 3 supported on the liner plate B by b, 5c is provided, and a plurality of transporters 6a, 6b movable along the hanger rail 3 are attached to the hanger rail 3, and a certain transporter 6a is mounted on the hanger rail 3. Can manually move the manually operated digging tool 8 via the balancer 7 in the direction of the height of the base digging hole so that the weight of the manually operable digging tool 8 does not need to be supported by human power. The excavator can be excavated only by pressing the tool tip against the excavator, and the excavating tool 8 is free to move in the height direction of the base excavation hole by the balancer 7 and is free to move along the hanger rail 3.
Allows the base borehole to move in the circumferential direction,
It is also very easy to change the excavation position. In addition, since the earth removal tool 10 is suspended on another carrier 6b via the hoist 9 so as to be movable in the height direction of the base drill hole, the earth removal tool 10 can be moved. Since the hoist 9 can be moved in the height direction of the foundation excavation hole and the hoist 9 can be moved in the circumferential direction of the foundation excavation hole by the transporter 6a, the residual soil generated by excavation is lifted and put into the buckner without any effort. And therefore take advantage of breakers and manual rock drills,
It is possible to remarkably reduce heavy-muscle labor and to realize a remarkable improvement in efficiency, and to obtain an excellent effect that the structure is simple and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of an excavation assisting device for foundation work according to the present invention.

FIG. 2 is a plan view showing an embodiment of the excavation assistance device for foundation work according to the present invention.

FIG. 3 is a plan view showing the support and the liner plate in the present invention.

FIG. 4 is a side view showing the engagement between the support and the liner plate according to the present invention.

FIG. 5 is a plan view showing the adjustment support and the liner plate in the present invention.

FIG. 6 is a side view showing the connection between the adjustment support and the liner plate according to the present invention.

FIG. 7 is a partially cutaway side view showing the arrangement of the hanger rail, the transporter and the balancer in the present invention.

FIG. 8 is a side view showing the arrangement of the hanger rail, the transporter, and the hoist according to the present invention.

[Explanation of symbols]

 B Liner plate 1 Center casing 3 Hanger rail 4, 4 Winch 5a Adjustment support 5b, 5c Support 6a, 6b Carrier 7 Balancer 8 Tool 9 Hoisting machine 10 Discharger 40, 40 Wire rope (cordage)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E02F 5/20 E21D 1/02 E21D 7/00

Claims (1)

(57) [Scope of request for utility model registration] The present invention is characterized in that it is suspended around a center casing for hanging out from a hole in a foundation excavation hole so as to be vertically movable by ropes from outside the hole and supports in a radial direction. A ring-shaped hanger rail 3 supported by a liner plate B is disposed on the hanger rail 3, and a plurality of transporters 6a and 6b movable along the hanger rail 3 are attached to the hanger rail 3, and a balancer 7 is attached to a certain transporter 6a. A manually operated excavating tool 8 is freely suspended in the height direction of the base excavation hole via a cradle, and the earth removal tool 10 is moved in the height direction of the base excavation hole via a hoist 9 on another transporter 6b. An excavation auxiliary device for foundation work, which is suspended as possible.