JPH06117190A - Lifting conveyor of soil - Google Patents

Abstract

PURPOSE:To effectively lift up soil in a vertical shaft, by jointing a plurality of screw conveyors slanting upwards and varying the slant angle in accordance with kinds of soil. CONSTITUTION:A plurality of screw conveyors 1 are arranged zigzag alternately to slant upwards so that respective discharge chutes are jointed to the opposite feed chutes. And extensible studs 8 are erected between respective screw conveyors 1a, 1b, 1c... to vary the inclined angle theta in accordance with the kinds of soil to continuously lift the excavated soil in a vertical shaft. In this way, a vertical shaft can be effectively excavated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoisting device applied to hoisting when excavating a vertical shaft, for example.

[0002]

2. Description of the Related Art To excavate a vertical shaft or vertical hole surrounded by a wall 20 constructed as shown in FIG. Since it cannot be transported upward due to its weight, it was generally discharged intermittently at the clamshell 22.

[0003]

Therefore, there has been a problem that the conventional shaft and hole excavation is not efficiently performed. The present invention was developed in order to address such a problem, and an object of the present invention is to make it possible to unload vertical shafts and vertical holes with a screw conveyor.

[0004]

The structure of the present invention for achieving the above object will be described with reference to FIGS. 1 to 4 corresponding to the embodiments. The present invention is a plurality of screw conveyors 1a, 1b ... Are alternately arranged in a vertical direction and are arranged in a zigzag shape in which the soil discharge port 3 and the input port 2 communicate with each other.

Further, a vertical adjusting device 8 for adjusting the crossing angle is provided between the screw conveyors 1a, 1b ...

[0006]

According to the present invention, the screw conveyor arranged in a zigzag shape by the above means can be conveyed with an increased conveying effect because the weight of earth and sand to be conveyed is dispersed and loaded in the conveying direction. Since the screw conveyors arranged in a zigzag pattern can be tilted to the maximum transportable tilt angle by the vertical adjustment device, a large amount of soil can be unloaded even in a vertically pit.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. Reference numeral 1 denotes a screw conveyor, and a plurality of screw conveyors 1a, 1b, 1c ... The outlet flange 4 provided at the soil discharge port 3 of the first screw conveyor 1a with the inlet 2 at the tip of the first screw conveyor 1a as the lowest end, and the inlet 2 at the tip of the second screw conveyor 1b. As shown in FIG. 2, the inlet flange 5 provided is connected by a sediment trap communication pipe 6 to connect the first screw conveyor 1a and the second screw conveyor 1b, and similarly, the second screw conveyor 1b and the third screw. The conveyor 1c is also connected, and by repeating this, the plurality of screw conveyors 1a, 1b, 1c ... Are arranged in a zigzag shape, and each screw conveyor 1c And 1b, the telescopic by jack without rotating or illustrated by turnbuckle 7 capable of adjusting the cross angle between 1c ... a vertical adjustment device 8 provided.

The earth and sand reservoir communication pipe 6 is formed as a horizontal pipe so as to horizontally connect the soil discharge port 3 and the input port 2 in FIG. 2, but as shown in FIG. When forming an inclined pipe that is inclined slightly downward from the earth mouth 3 toward the input mouth 2, the flow of earth and sand is performed smoothly, and the connection of the earth and sand reservoir communication pipe 6 with the inlet flange 5 is as shown in FIG. At the end of the communication pipe 6, a wrapping portion 9 for wrapping the inlet flange 5 is provided and rotatably connected.

In the figure, 10 is a shaft with screw blades of the screw jack 1, 11 is a bearing portion thereof, and 12 is a rotational drive source thereof.

[0010]

As described above, according to the present invention, since a plurality of screw conveyors are alternately tilted in the vertical direction and arranged in a zigzag shape in which the mutual soil discharge port and the input port communicate with each other, the screw is used. Even if the conveyor is used, earth and sand can be hoisted, a large capacity and high efficiency hoisting can be continuously performed, and when the vertical adjustment device that can adjust the crossing angle is provided between each screw conveyor, the inclination angle can be arbitrarily changed. Therefore, the best inclination angle can be selected depending on the type of sediment, and the change of the discharge position has the effect that the position of the discharge port can be adjusted by changing the opening of the uppermost screw conveyor. ..

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a modification of FIG.

FIG. 4 is an enlarged view of part B of FIG.

FIG. 5 is a schematic view showing a conventional example.

[Explanation of symbols]

 1 Screw conveyor 2 Input port 3 Soil discharge port 8 Vertical adjustment device

Claims (2)

[Claims] 1. A hoisting device in which a plurality of screw conveyors are alternately tilted in a vertical direction and arranged in a zigzag shape in which a mutual earth discharging port and an input port communicate with each other. 2. The hoisting device according to claim 1, wherein an up-down adjusting device capable of adjusting a crossing angle is provided between the screw conveyors.