JPS61257598A - Earth and sand carry-out machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is for efficiently transporting excavated earth and sand from a face out of a shaft by using a narrow working space such as an excavator in a shield method or a propulsion method. Also, in civil engineering work, etc., it can be used over relatively long distances (e.g., instead of belt conveyors, etc.)
Continuously transports mixed earth and sand such as sand and gravel, silt, and clay over a distance of approximately 100 to 200 meters.

[Conventional technology]

Conventional techniques for transporting powder or viscous materials include pressure feeding using only a screw, methods relying on piston movement using a cylinder, methods using a combination of a screw and cylinder, and methods using vacuum. However, all of these mechanisms are designed to transport homogeneous materials, and for example, earth and sand are directly introduced into a piston portion and fed under pressure. Therefore, it is not suitable for transporting various types of mixed earth and sand in civil engineering work, and even when using a vacuum, clogging easily occurs, and there is currently no suitable one.

[Problem that the invention seeks to solve]

Therefore, in the case of prior art, homogeneous material can be spread over short distances (
Although it can be adopted for distances (several meters to tens of meters), it is not suitable for civil engineering work, and if the mechanism of the conventional technology is used as it is, the phenomenon of so-called dry feed (increase/decrease change in feed amount) due to the cylinder will occur, and it will not be possible to transport a continuous and constant amount. It is not something that can be expected.

Therefore, in the present invention, as mentioned above, gravel, silt,
The purpose of the present invention is to provide a device that is suitable for mixed and changing soil such as sand and clay, and that can be continuously transported in a constant amount over long distances.

[Means and actions for solving the problem] Sediment storage chambers 16 are provided above and below between the front feed pipe 5 and the rear transport pipe 8.
．． A storage pipe 6-1, 6-2 having a cylinder 16 is branched into a collection pipe, and only the earth and sand 17-1 in the lower part taken into the casing 11 by the back and forth movement of the casing 11 is transferred to a transport pipe by the cylinder 12. Press 17 to the 8 side. At this time, in order to assist the backflow of the earth and sand in the earth and sand storage chamber 16.16 and the smooth pressing of the earth and sand onto the transport pipe 8, the storage pipe 6-1.6 is
A mechanism in which opening/closing gates 9-1.9-2 are provided before and after the casing 11, cylinder 12, and opening/closing gates 9-1.9-2 intermittently for intermittent flow of earth and sand. And so.

〔Example〕

One embodiment of the present invention is shown in FIGS. 1, 2, 3, 4,
It is shown in FIG. 5 and FIG. 6 and will be specifically explained.

As described above, inside the storage pipes 6-1, 6-2, which are provided in a manner that they can be collected and branched, there are constructed earth and sand storage chambers 16.16 located above and below.

Before the cylinder 12 provided at the bottom of the hopper 3 is extended, the casing 11 is advanced into the lower sediment storage chamber 16, and then the cylinder 12 provided coaxially with the casing 11 is extended. Only the taken-in earth and sand 17-1 is pressed against the transport pipe 8 side 17-1.

When the pressing of the cylinder 12 is finished, the cylinder 12 is retracted together with the casing 11. Then, the earth and sand will fall from the upper part into this contracted part and the earth and sand will fall into the earth and sand storage chamber.
becomes full again. In this way, when the operation in one storage pipe 6-1 ends, the operation in the other storage pipe 6-2 is started, and earth and sand are continuously supplied and pumped to the transport pipe 8. be.

At this time, opening/closing gates 9-1, 9-2 having valves 10-1, 10-2 are provided before and after the storage pipe 6-116-2, so that the valves 10-1, 10-2 are The casing 11.11 and the cylinder 12.12 move back and forth in accordance with the operation of the casing 11.11 and the cylinder 12.12, so that the earth and sand flowing from the hopper 3 can be continuously pumped. Above valve to-1,1
0-2 has one hole 18-2 through which earth and sand penetrate. For example, as shown, storage tube 6-1.6-2
Move left and right against. Mechanisms such as cylinders that effect movement (switching) are omitted from illustration. In the figure, 18-1.18-8 indicates the position that corresponds to the hole through which earth and sand in the storage pipe 6-1.6-2 or transport pipe 8 passes when the valve 10-1.10-2 moves left and right. It shows.

In addition, 2 in the figure is the prime mover that rotates the screw stem 4, 14 is the anchor of the cylinder 12, 15-1 is the anchor of the cylinder 13, and 15-2 is the casing 1.
The fixing fitting of No. 1 is shown.

The above constitutes one embodiment of the earth and sand transporter 1 of the present invention.

〔Effect of the invention〕

As mentioned above, the present invention provides a storage tube 6-1.6 that is continuously taken in by the screw stem 4 and configured in two stages, upper and lower.
-2 is provided at a high speed, and the valves 10-1 and 10-2 are alternately opened and closed to pump only the earth and sand located at the bottom of the storage pipe 6-1 and 6-2. Since it is easy to temporarily store and consolidate the heterogeneous mixed earth and sand, and to press only the lower partial earth and sand sequentially to the transport pipe 8 side, empty feeding by the cylinder 12 occurs and the conveyance capacity decreases. It is possible to perform smooth and constant pressure feeding at all times. Furthermore, since it is easy to adjust the capacity of the cylinder 12, it has become possible to transport long distances (for example, about 100 to 200 m).

Furthermore, since the main mechanism is a combination of rotation and piston motion, it can be easily and inexpensively manufactured and is useful.

[Brief explanation of the drawing]

FIG. 1 is a general plan explanatory diagram of the earth and sand transporter I according to the present invention. Figure 2 shows the valve 10-1.1 in the earth and sand transporter 1.
A general plan explanatory view showing an example of operation of 0-2. Figure 3 shows the second
FIG. FIGS. 4(a), 4(b), and (4) are general longitudinal explanatory views showing an example of the operation of the casing 11 and cylinder 12. Figure 5 shows the third
BB arrow cross-sectional explanatory diagram of the figure. FIG. 6 shows the valve 10-1
．． Example diagram of 10-2. In addition, 1 in the figure is the earth and sand transport machine. 4 is a screw stem. 5 is the feed pipe. 6-1.6-2 is a storage pipe. 7 is the gathering area. 8 is a transport pipe. 9-1.9-2 is an opening/closing gate. 10-1.
10-2 is a valve. 11 is the casing. 12.13 is a cylinder. 16 represents a dirt storage room. Figure 5

Claims (1)

[Claims] Sediment storage chambers 1 are located above and below between the feed pipe 5 containing the screw stem 4 located at the bottom of the hopper 3 and the transport pipe 8.
Storage pipes 6-1 and 6-2 having pipes 6 and 16 are bifurcated and provided. The casing 11 is moved back and forth below the earth and sand storage chamber 16 to take earth and sand into the casing 11, and then the cylinder 12 provided coaxially with the casing 11 is extended, and only this taken earth and sand is transferred to the transport pipe 8 side. A mechanism that presses the Opening/closing gates 9-1, 9-2 are installed before and after the storage pipes 6-1, 6-2 provided in the twin series, respectively, and these opening/closing gates 9-1, 9-2, the casing 11, and the cylinder 1 are connected to each other.
A mechanism that operates 2 alternately. An earth and sand transport machine characterized by the above-mentioned features.