JPH06173266A - Excavator for underground wall - Google Patents

Abstract

PURPOSE:To provide a compact underground excavator on the whole by hanging an excavation drive part directly from an operating part without applying a system of hanging it by a crane, and allowing a hanger, a sludge hose and a power supply hose to be delivered and wound into the operating part in association with the hanging. CONSTITUTION:An excavation drive part A is hung down by the base machine of an operating part B, and the power unit of the operating part B discharges sediment through a sludge hose 8 and a power supply hose 6 while supplying power such as oil pressure. The sludge hose 8 and the power supply hose 6 are wound and delivered respectively by the horizontal hose drum 9 and vertical hose drum 7 of the operating part B, and after winding, the excavation drive part A is stored at the front face of the operating part B. With the combination of such constitution, the whole structure is consolidated into a compact underground wall excavator.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a continuous underground wall, a water blocking wall,
The present invention relates to an underground excavator for carrying out work such as earth retaining walls and structural foundations, especially when there are limited empty heads such as under the road, or in narrow spaces such as various buildings.

[0002]

2. Description of the Related Art Conventionally, there is an excavation drive unit for excavating earth and sand by a cutter and an operation unit for supplying power such as hydraulic pressure to the drive unit. In this case, the excavation drive unit is operated from the operation unit. Was lifted with a wire, and the cylinder was extended and the excavation drive section was lowered to the basement to proceed. In addition, the length of the excavation drive unit itself is several meters due to the need to frame the cylinder that presses the cutter downwards, and therefore the excavation drive unit naturally becomes a considerably long length, and the wire and hydraulic pressure for power transmission are used. Had to be hung by a crane via a hose and a mud hose.

Therefore, the excavator cannot be put in a narrow place depending on the road under the tunnel or the construction site, and the work cannot be performed.

Although some excavators are downsized,
Since the mud drainage pipes were replenished according to the depth to be dug, the work efficiency was poor and there was a problem in workability.

[0005]

SUMMARY OF THE INVENTION The present invention is intended to solve the above problems, and an object of the present invention is to separate an excavation drive unit such as a cutter and an operation unit and excavate between the two units. The drive unit can be lifted up and down by suspenders such as wires, connected by flexible hoses such as sludge drainage hose and power supply hose, and these suspenders and hoses are wound and unwound by a hose drum. It is a compact and compact excavator for a medium wall excavator.

[0006]

The underground wall excavator of the present invention has been made in view of the above objects, and its gist is to provide a plurality of cutter drums rotated by a drive motor and the cutters. A tooth drum having teeth mounted on the outer periphery of the drum, and an excavation drive unit for excavating vertically in the ground by integrally assembling earth discharging means for discharging earth and sand excavated by the teeth with a mud pump, and the excavating drive. A base machine that lifts and lowers a section, and an operation unit that includes the drive motor and a power unit that supplies power such as hydraulic pressure for operating the sludge pump. The excavation drive unit is provided between the excavation drive unit and the operation unit. A connecting structure that winds by connecting with a suspending tool that suspends, a mud discharging hose connected to the soil discharging means, and a power supply hose bundled to supply power such as the hydraulic pressure. A horizontal hose drum and a vertical home drum are provided so that the sludge hose is wound in the horizontal direction and the power supply hose is wound in the vertical direction, and is fed out. There is an underground excavator. Here, the earth discharging means discharges the earth and sand excavated by hydraulic pressure or electric power to the outside, and a mud discharging hose is connected to this. The drive motor of the excavation drive unit may be a hydraulic motor or an electric motor. Further, as the suspending tool, steel wire, chain, etc. can be considered, but a rope made of synthetic resin can be used as long as it has rigidity and flexibility, and the drainage hose and the power supply hose are the same. Hard rubber or the like is used in consideration.

[0007]

[Operation] The excavation drive unit suspended from the operation unit by the hoisting tool is hoisted by the base machine in the operation unit, and the power unit of the operation unit raises the cutter drum of the excavation drive unit via the power supply hose and the mud hose. The earth and sand are excavated by turning and the excavated earth and sand are discharged by the earth discharging means. In this case, the power supply hose is vertically wound by the vertical hose drum in the operating section, and the sludge draining hose is also horizontally wound by the horizontal hose drum in the operating section.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an underground excavator according to the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, the underground excavator according to the present invention comprises an excavation drive unit A and an operation unit B. The operation unit A is an excavation hole when excavating a continuous underground wall, for example. A rail 1 is laid on the ground along the road, and wheels 2 can run on the rail.

The operation section B has an operator room 3, and the operator drives the excavation drive section A by means of a wire 5 wound around a winch 4 in the base machine by an operator, and the operation section B also excavates. A vertical hose drum 7 that winds an electric wiring hydraulic hose 6 and a sludge drain hose 8 as a power supply hose that moves up and down with the hoisting of the drive unit by a horizontal rotation shaft, and a vertical hose drum 7 that winds by a vertical rotation shaft. A horizontal hose drum 9 wound by a vertical rotation shaft is provided as a part of the power unit. The operation unit B is assembled by the main body 18 and travels on the rails by the wheels 2. The operation unit B is provided on the upper portion of the main body by the pulley provided at the tip of the boom 19 and the support frame 10 of the excavation drive unit A. The adjusting cylinder 20 is provided for suspending the wire 5 wound between the pulleys and moving the excavation drive unit A in the front-rear direction for excavation.

On the other hand, the excavation drive unit A has the hydraulic hose 6 described above.
And a slidable hose 8 to suspend the wire 5 and the structure is such that a hydraulic drum 11 rotates a cutter drum 12 around at least a pair of horizontal axes.
A tooth holder 14 that is attached to the outer periphery of the cutter drum 12 and holds a plurality of teeth 13 for excavation; a tooth drum 15; and a sludge pump 17 that has a suction port 16 above the middle portion of the pair of cutter drums 12. When,
It is assembled by a support frame 10 that integrally supports these. The excavation drive unit A is provided with a hydraulic box 21 for controlling the hydraulic pressure of the guide flaps 26, 26 'incorporated in the support frame 10 described above, a pressure adjusting device 22 for the sludge pump 17, and the like.

Further, the power supply hose 6 requires a large number of hoses in order to connect to each system. All the hoses are arranged in a line in a plane, and the rubber strip 24 and both strips arranged on both sides. The front and back surfaces in between are integrated by clips 25 that are bundled at regular intervals to facilitate winding by the vertical hose drum 7. Further, the sludge hose is wound in the horizontal direction by the horizontal hose drum 9 as described above, but since the drum 9 has a large hose diameter and a long length, it is installed above the main body 18 of the operation portion. To do. It should be noted that one end of the mud discharge hose 8 is located at the suction port 16 and the other end of the one wound on the horizontal hose drum 9 is connected to the outside of the underground excavator of the present invention so as to discharge the muddy water, and the vertical hose drum is connected. The other end wound on is supplied from external power by a power unit,
And to circulate the hydraulic pressure.

Furthermore, the guide flaps 2 are arranged so as to extend and contract from the outer peripheral surface of the support frame 10 to predetermined positions on the upper and lower sides of the main columns 27, 27 'of the support frame 10 of the excavation drive unit A.
6, 26 'are arranged. That is, as shown in FIG. 2, the guide flaps are respectively arranged on the steel members of the left and right support frames in the long side portion of the long side frame 10 of the support frame 10. When the excavation destination is shifted to the left side, the guide flaps 26, 26 'push the flap against the excavation wall by extending the lower cylinder 28 of the left flap and the upper cylinder 29 of the right flap to make the excavation direction perpendicular. To correct. To correct this deviation in the excavation direction, change the rotation speed of the left and right cutter drums, that is, if it shifts to the left, make the rotation speed of the left cutter drum faster than that on the right side so that the left side is the right side. The gap can be corrected by excavating the earth and sand larger and excavating (for the movement of this pad, the applicant's patent application Japanese Patent Application No. 2-312738, filed on November 20, 1990 will be helpful). . Also, this deviation in the excavation direction is
The front and rear guide flaps 30 and 30 'arranged so as to intersect the guide flaps 26 and 26' can also be corrected in the front-rear direction.

The method of using the present invention having the above structure will be described below.

First, the wheel 2 travels on the rail 1 for excavation positioning, and then the operation portion B is fixed by a wheel stopper (not shown). Next, the drive motor is rotated to cut the earth and sand with the teeth 13, and the excavated earth and sand is excavated while being discharged by an earth discharging means such as a mud pump. In this way, the excavation drive section A is loosened by loosening the power supply hose and the sludge hose with the vertical hose drum and the horizontal hose drum as the excavation proceeds.
To the ground. Regarding the excavation, the upper and lower cylinders 29 and 28 provided on the flaps 26 and 26 'on both sides are respectively expanded or contracted, or the rotational direction of the left and right cutter drums 12 is changed to control the direction of excavation. To do.

After excavating the drilled hole to a predetermined depth, along with the winding by the wire 5, the extended power supply hose and drain mud hose are wound by the vertical hose drum and the horizontal hose drum, and the excavation drive section A is set. Stored on the front of the operation unit B. In this case, the sludge hose is wound horizontally.

[0017]

According to the present invention, an excavation drive section for excavating directly with teeth and discharging earth and sand by an earth discharging means, and an operation section for controlling the discharging and discharging of earth and sand by transmitting and supplying power to the excavation drive section. Separated from each other, and hanging each part with a hanging tool, the discharge hose and the power supply hose were taken up and taken out by the horizontal hose drum and the vertical hose drum, so compared to the conventional crane type. The whole is compactly assembled and assembled. Further, by winding the sludge discharge hose around the horizontal hose drum, sedimentation of the sand in the hose can be reduced, and by promptly discharging it, the load on the hose can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an underground excavator as an embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a right side view of FIG.

[Explanation of symbols]

 4 Winch 5 Lifting equipment (wire) 6 Power supply hose (hydraulic / electric wiring hose) 7 Vertical hose drum 8 Drainage hose 9 Horizontal hose drum 12 Cutter drum 13 Teeth 15 Teeth drum 17 Drainage pump

Claims (1)

[Claims] 1. A plurality of cutter drums rotated by a drive motor, a teeth drum having teeth attached to the outer periphery of the cutter drum, and an earth discharging means for discharging earth and sand excavated by the teeth with a mud pump. An operation unit including an excavation drive unit for assembling and excavating the ground vertically, a base machine for hoisting the excavation drive unit, and a power unit for supplying power such as hydraulic pressure for operating the drive motor and the sludge pump. The digging drive unit and the operation unit are bundled together to suspend the digging drive unit, a slinging hose connected to the soil discharging means, and a power supply such as the hydraulic pressure. A connection structure for winding by connecting with a power supply hose, and for winding and discharging the mud hose horizontally and the power supply hose vertically. An underground excavator characterized in that each of them is a horizontal hose drum and a vertical home drum, and these are provided in the operation section.