JPH0745796B2 - Excavator and unloader for earth and sand - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a device for excavating and carrying out a cutting ground when propelling a propulsion pipe.

(Prior Art) A mechanical propulsion device for a propulsion pipe currently in use has a long scribing auger in which a propulsion device for the pipe, an auger rotation device, etc. are installed on the same frame, and the rotation device extends in the longitudinal direction of the pipe. The ground is excavated by rotating the and the excavated soil is conveyed backward.

(Problems to be solved by the invention) In the conventional device, since the propulsion device for the propulsion pipe and the auger rotation device are installed on the same mount, the machine becomes large,
The weight is large and the structure is complicated.

In addition, since the sand is carried out by rotating a long scribing auger, a large amount of power and a rigid structure are required.

In addition, since the blades for carrying sediment are small and the rotating shaft has a large diameter, the drilling sand auger has a small excavating sand space to be sent to the drilling auger, which causes a blockage of the sand during operation, resulting in poor efficiency. Also, the gravel diameter to be transported is limited.

Furthermore, it is difficult to control the direction of the propulsion pipe in soft ground.

The present invention has been proposed to solve the above-mentioned problems of the prior art, and the object of the present invention is a structure having a simple structure, high excavation efficiency of earth and sand, and highly economical earth and sand that can control the direction of a propulsion pipe. The point is to provide the excavation and unloading device.

(Means for Solving the Problems) In order to achieve the above object, the earth and sand excavating and unloading device according to the present invention is mounted in a propulsion pipe so as to be movable back and forth, and has a front end face for loading and unloading sediment. Formed on the part,
A stopper for the tip edge of the propulsion pipe is provided in the opening, and the earth and sand excavating and conveying member is mounted along the central axis of the cylinder in the cylinder having the earth and sand discharging part on the rear end face, and the cylinder is attached to the cylinder. It is constructed by mounting the traveling wheels of the body and the drive device of the earth and sand excavating and conveying member.

(Operation) Since the present invention is configured as described above, the tubular body is moved to the front end in the propulsion pipe, the cutting ground is excavated by the stopper to the tip blade end of the propulsion pipe, and the excavated earth and sand is loaded. The cylinder is positioned during the work.

After positioning the tubular body in this way, the driving device mounted on the tubular body alternately operates the earth and sand excavating and conveying member mounted along the central axis of the tubular body and the traveling wheels of the tubular body. Along with excavating the cut ground, after loading the excavated earth and sand into the cylinder from the front end opening, start the cylinder behind in the propulsion pipe, and carry out the excavated soil in the cylinder outside the mine,
Thus, excavation of Kiriwachiyama, loading of excavated soil into the cylinder,
By alternating the movement of the cylindrical body in the propulsion pipe, it is not necessary to equip the propulsion pipe with a large-scale earth and sand excavating and discharging device, and the weight of the entire propulsion pipe is reduced and the propulsive force is increased. It is reduced, and the earth and sand transported to the outside of the mine is less likely to be agitated, which makes it easier to handle.

Further, a stopper is provided for the tip blade end of the propulsion pipe, and the stopper enables positioning of the cylinder during excavation of the cutting ground and loading of excavated earth and sand,
Further, the excavating and conveying member and the traveling wheels of the tubular body are alternately driven by a driving device mounted on the tubular body, so that the excavation of the cutting ground and the loading and unloading of the excavated earth and sand by the tubular body are smoothly performed. Be done. Further, the direction of the propulsion pipe can be controlled by adjusting the inclination of the head of the excavating and conveying member.

(Examples) The present invention will be described below with reference to illustrated examples.

(1) is a propulsion pipe having a tip blade (2), and is configured to be propelled by a pipe propulsion device installed in the starting shaft.

A cylindrical body (4) having a front end surface open to the propulsion pipe (1) and a stopper (3) for the blade opening (2) arranged on the outer periphery of the front end is arranged so as to be able to move forward and backward. A scribing auger (5) constituting the earth and sand excavating and conveying member is mounted along the central axis of (4). The oscilloscope (6) of the same screen ogre (5) is composed of a double tube,
The outer pipe (6a) supports the vane piece (7), and the inner pipe (6b) is used as an injection pipe for injection material for preventing ground collapse of the cutting face and as an inner tube for spring water discharge. Also, it is connected to a drainage pump of spring water, and is configured to supply the injection material by a switching device or to suck and remove spring water. In the figure, (8) is a screw head, and (9) is a sediment discharge port provided on the rear end surface of the cylindrical body (4).

Further, a drive device including a hydraulic motor or an electric motor (10) and a speed reducer (11) is mounted on the cylindrical body (4), and the drive device is used to switch the clutch to perform the operation of the scribble auger (6). ) And the traveling wheels (1) of the tubular body (4)
2) and are driven alternately.

In the figure, (13) is an auxiliary wheel arranged on the outer peripheral surface of the cylindrical body (4), and (14) is a shoe composed of a flexible air bag body,
A pressure fluid is filled from a pressure fluid source connected to the shoe (14) to expand the pressure fluid, and it is pressure-bonded to the inner peripheral surface of the propulsion pipe (1) to excavate the cutting ground, and the reaction force when the excavated earth and sand are loaded. Is configured to support.

Since the illustrated embodiment is configured as described above, the traveling wheels (12) are driven by the motor (10),
The tubular body (4) is moved to the front end of the propulsion pipe (1), and the stopper (3) of the tubular body (4) is moved to the blade end (2) of the propulsion pipe (1).
When contacted with, the shoe (14) is filled with a pressurized fluid and pressed against the propulsion pipe (1).

In this state, the drive mechanism drives the screw-type auger (5) to excavate the cutting ground and load the excavated earth and sand into the tubular body (4).

At this time, depending on the soil quality of the natural ground, a rock mass collapse preventing injection material is injected into the natural rock via the inner pipe (6b) of the auger shaft (6). In case of spring water, the inner pipe (6
b) Eliminate more.

Thus, after loading the excavated earth and sand into the cylindrical body (4),
The traveling wheels (12) are driven by a drive device to move the tubular body (4) rearward in the propulsion pipe (1), take it out from the earth and sand discharge port (9), and discharge it to the outside of the mine.

Hereinafter, the above-mentioned operation is repeated, the ground of cutting face is excavated, the excavated earth and sand are carried out, and the propulsion pipe (1) is propelled.

In addition, the auger head (8) of the above-mentioned screen ogre (5)
The direction of the propulsion pipe (1) can be controlled at the time of propulsion in soft ground by adjusting the inclination of.

(Effects of the Invention) According to the present invention, as described above, the front end face is provided with the earth and sand excavation loading opening, and the rear end face is provided with the earth and sand discharge part, respectively.
In addition, by mounting the cylindrical body in which the earth and sand excavating and transporting member is mounted inside the propulsion pipe so that it can be moved back and forth, it is possible to repeatedly propel the propulsion pipe and carry out the excavated earth and sand from the Mt. Therefore, it is not necessary to mount a large-scale earth and sand excavator on the propulsion pipe, the entire propulsion pipe is lightweight, the propulsion force is small, and the sediment carried out to the mine is less likely to be agitated. , Handling is easier, and the propulsion pipe is not damaged during propulsion.

Further, according to the present invention, a stopper is provided at the front end of the tubular body for the blade opening of the propulsion pipe, so that the tubular body can be positioned during excavation of the cutting ground by the tubular body and loading of excavated earth and sand. Further, by alternately driving the earth and sand excavating and discharging member and the traveling wheels of the cylindrical body by a driving device, the excavation of the cut face mountain and the loading of the excavated sediment by the cylindrical body and the discharge work of the excavated sediment are smoothly performed. It is what is done.

Further, the direction of the propulsion pipe can be controlled by adjusting the inclination of the head of the earth and sand excavating and carrying out member.

[Brief description of drawings]

FIG. 1 and FIG. 2 are vertical cross-sectional views showing a state at the time of excavating a cutting ground of the earth and sand excavating and discharging device according to the present invention, and at the same time, at the time of discharging. (1) …… Propulsion pipe, (2) …… Blade, (3) …… Stopper, (4) …… Cylinder, (5) …… Screw Auger,
(6) …… Organic yaft (6a) …… Outer tube, (6b) …… Inner tube, (7) …… Blade piece,
(10) …… Motor, (11) …… Reducer, (12) …… Traveling wheels.

Claims (1)

[Claims] 1. A propelling pipe is mounted so as to be able to move back and forth, and a front end face is formed in an opening for loading and unloading earth and sand, and a stopper for a tip blade end of the propulsion pipe is provided in the opening.
A sediment excavation and transport member is mounted along the central axis of the cylinder with a sediment discharge section at the rear end face, and traveling wheels of the cylinder and a drive device for the sediment excavation and transport member are mounted on the cylinder. An earth and sand excavating and unloading device, which is characterized by being erected.