JP2596978Y2 - Underground wall drilling rig - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground wall excavator, and more particularly to an underground wall excavator in which a hose turning pulley is installed so as to be vertically movable.

[0002]

2. Description of the Related Art An underground wall excavator at present comprises a base machine, a mast connected to the base machine, and an excavator body suspended from the mast by wires or the like. Dig underground with a cutter wheel attached to the lower end. At this time, a mud drain hose communicating with a mud pump for excavating gravel and mud from the ground to the outside of the ground while excavating the ground, and a hydraulic hose supplying hydraulic pressure as a power source of the cutter wheel and the like are provided underground. It is provided on the wall excavator. The sludge hose and the hydraulic hose can be turned from upward to downward from the sludge hose drum and the hydraulic hose drum that feed and wind these hoses, respectively, via pulleys fixed to the upper part of the mast, and guided to the excavator body. Is done.

[0003]

[Problems to be Solved by the Invention] However, even after the excavator body digs in the ground, since the pulley is fixed to the upper part of the mast, the distance from the drainage hose drum and the hydraulic hose drum to the pulley is fixed. The sludge drain and the hydraulic hose for the distance from the pulley to the body of the excavator from the pulley to the ground are idle and wasted.

An object of the present invention is to make effective use of the play portion of the drainage hose and the fluid pressure hose after the above-mentioned excavator body digs in the ground to dig in the ground, and therefore has the same length. It is an object of the present invention to provide an underground wall excavating device that can excavate deeper into the ground by the length of the play portion.

[0005]

According to the present invention, a base machine, a mast attached to the base machine, and a wire passing through a sheave fixed on the top of the mast are provided.
Vertically movable and the excavator body being縣吊, and hydraulic hoses drum, the waste sludge Hosudora out Repetitive the arm rollable in diaphragm wall rig smell and a waste sludge hose attached Te
The sludge hose unwound from the sludge hose drum.
A hose for suspending and guiding the base into the excavator body
The turning sheave is fixed to the upper part of the mast by a fixed sheave.
Suspended by pulley wire
By winding and unwinding the wire, the hose
Rails with turning pulleys laid from the top to the bottom of the mast
The underground wall excavator is provided so as to be able to move up and down along .

[0006]

[Action] In underground wall drilling apparatus of the present invention may be a hose deflection pulley for guiding the excavating machine body hydro hose from host <br/> Sudoramu you can move up and down, moving from top to bottom the pulley Accordingly, the length of the hose which has conventionally been idle can be effectively used for underground excavation.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of an embodiment of an underground wall excavator I equipped with a vertically movable hose turning device according to the present invention as viewed from the left side. The underground wall excavator I is a base machine 1
And a mast 2 which is connected to the front of the base machine 1 in a substantially vertical manner, and sheaves 13 and 1 fixed to the upper part of the mast 2
The excavator body 3 is suspended from the base machine 1 by a wire 14 via a 3 ′ and is movable up and down.
A rail 5 is laid from the upper part to the lower part on both left and right ends (see FIG. 2) of the front part of the vehicle, and the hose turning pulley 4 is installed along the rail 5 so as to be movable up and down, as will be described in detail later. Also,
A sludge hose 10 is suspended from a sludge hose drum 9 installed vertically on the left side of the base machine 1 as shown in FIG. Further, a hydraulic hose 12 is connected to a hose turning pulley 4 ′ from a hydraulic hose drum 11 provided on the right side of the base machine 1.
(See FIG. 2) to the excavator body 3. Here, the hydraulic hose 12 may be one, but in this embodiment, a plurality of hydraulic hoses 12 are drawn out from the hydraulic hose drum 11, and a bundle thereof is uniformly shown as the hydraulic hose 12. Further, the drums 9 and 11 are connected to the base machine 1 as in this embodiment.
Is not always installed at the side of the mast 2 and may be connected to the mast 2, for example, or may be installed horizontally, such as a sludge hose drum 9 'shown by a broken line in FIG. The hose turning pulley 4 is connected to the moving sheave 4d via the connecting plate 4c, and the end is fixed to the upper part of the mast via the fixed sheave 7 fixed to the upper part of the mast 2 from the winch 6 and the moving sheave 4d. It is suspended by a pulley suspension wire 8. In addition, rail 5, winch 6, fixed sheave 7,
The pulley wire 8 and the like are provided substantially symmetrically with respect to the underground wall excavator I and have the same mechanism as the left and right. Further, the hose pulleys 4, 4 'will be described later.

A cutter wheel 15 is attached to a lower end of the excavator body 3, and the wheel 15 performs excavation by using hydraulic pressure supplied through a hydraulic hose 12 as power. Mud and the like generated during excavation are discharged from the ground to the outside of the ground at any time through a drainage hose. The base machine 1 is a running endless belt 1.
6 and self-propelled.

FIG. 2 is a cross-sectional view showing the engagement state between the vertically movable hose turning pulleys 4, 4 'and the rail 5 according to the present invention. Note that the hose turning pulley 4 'is a pulley that moves up and down along the rail 5 on the right side of the mast 2, and hangs the plurality of hydraulic hoses 12 described above. Wheels 4b are supported at the inner ends of the pulley shafts 4a of the hose turning pulleys 4 and 4 ', and the wheels 4b are vertically movably engaged with rails 5 provided on both front ends of the mast 2. . Therefore, when lowering the hose turning pulleys 4 and 4 ′ at the upper part, the pulley suspension wire 8 is gradually fed out from the winch 6. At this time, the wheels 4b move downward along the rail 5 while maintaining the tension of the pulley suspension wire 8 by the weight of the hose turning pulleys 4, 4 'and the like. The wheel 4b does not always rotate due to the vertical movement in the rail 5, but descends so as to slide through a slight gap between the wheel 4b and the rail 5, and slightly rotates when coming into contact with the rail 5. It should be noted that the two wheels 4b can be designed to move up and down while rotating the rails (not shown). In order to raise the hose turning pulleys 4 and 4 ′ from below, use the winch 6 to pull the pulley suspension wire 8
Can be wound up. For winding the hoses 10 and 12, a movable cylinder or the like can be used in addition to the winch.

FIG. 3 shows the hose turning pulley 4 as viewed from the front. As described above, the pulley shaft 4 of the hose turning pulley 4
A continuous plate 4c having a U-shaped cross section is connected to a, and an upper portion of the continuous plate 4c is connected to the moving sheave 4d.

For excavation, the excavator body 3 is moved downward while the wire 14 is being fed out, the cutter wheel 13 is operated to perform excavation, and the winch 6 is rotated as described above in accordance with the progress of excavation. The suspension wire 8 is pulled out, and the hose turning pulleys 4 and 4 ′ are lowered along the rail 5. Excavator body 3 from hose turning pulleys 4, 4 '
It is desirable that the hoses 10 and 12 be guided to the excavator main body 3 substantially vertically from above the main body 3 in order to prevent the hoses and other parts from being entangled or slackened. Therefore, when the excavator body 3 before excavation is on the ground, the hose turning pulleys 4, 4 '
Is preferably above the mast 2, and when the excavation proceeds and the excavator body 3 enters the ground, the hose turning pulleys 4, 4 '
, It is possible to excavate deeper as much as the sludge hose and the hydraulic hose, which have conventionally been idle .

[0013]

Effects of the invention] in the ground wall drilling apparatus of the present invention is, Hydro hose, which has been a conventional play, hose rolling from the hose drum
The length of the up counter pulley from the length portion and said pulley to the ground can be used to advance digging underground. For example,
It is possible to dig deeper in the ground compared with the conventional device with the same length of sludge hose as the conventional device. In this case, if the same depth is dug, the length of the drainage hose is short.

[Brief description of the drawings]

FIG. 1 is a side view schematically illustrating an entire underground wall excavator of the present invention.

FIG. 2 is a cross-sectional view showing a mechanism in which a pulley for suspending a sludge hose and a hydraulic hose of the underground wall excavator of the present invention moves up and down.

FIG. 3 is a front view of a sludge hose turning pulley.

[Explanation of symbols]

 I Underground wall excavator 1 Base machine 2 Mast 3 Excavator body 4 Hose turning pulley 4a Pulley shaft 4b Wheel 4c Connecting plate 4d Moving sheave 5 Rail 6 Winch 7 Fixed sheave 8 Pulley suspension wire 9 Drainage hose drum 10 Discharge Mud hose 11 Hydraulic hose drum 12 Hydraulic hose

Claims (1)

(57) [Scope of request for utility model registration] 1. A base machine, a mast attached to the base machine, and a sheave fixed on an upper part of the mast.
And excavator body is縣吊vertically movably by wire via a hydraulic hoses drum, to the waste sludge Hosudora arm
Land and a Repetitive out the waste sludge hose attached to enable the take-up
In the middle wall excavator, the drainage hose drum
The discharged sludge hose is suspended in the excavator body.
A hose turning pulley to be guided to the mast is fixed above the mast.
With a pulley suspension wire through a fixed sheave
To suspend and pull out the pulley wire.
Therefore, move the hose turning pulley downward from the top of the mast.
An underground wall excavator characterized in that it can be moved up and down along a rail laid in a section .