JPS5944494A - Apparatus of metering soil discharge amount of shield drilling 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] The present invention relates to a device for measuring the amount of earth removed by a shield excavator.

In a shield excavator, it is important to control the amount of excavated earth and sand to control the excavation speed to an appropriate state.

For this reason, conventional methods have mainly been adopted, such as a method in which a measuring device is installed on a belt conveyor (belt scale) or a method in which measurements are taken at a fixed position in a vertical shaft. Although it is possible to measure relatively accurately when soil is continuously removed, there is a problem in that accuracy is lost when gravel etc. are mixed in with the soil.On the other hand, in the latter case, The amount of soil removed could not be measured unless the soil was transported to the shaft, and due to the time lag, the measured values could not be immediately transmitted to the excavator.

In view of these circumstances, the present invention has been made to provide a device for measuring the amount of excavated earth that can accurately manage the amount of earth and sand excavated and discharged by a shield excavator.

Hereinafter, the present invention will be described in detail with reference to the drawings.

In Figure 1, (1) is a shield tunneling machine, (2) is a sleeper laid sequentially at right angles to the excavation direction in a tunnel (3), (4) is a screw conveyor of tunneling machine (1), (
5) is a segment provided on the inner wall of the tunnel (3).

As shown in FIGS. 2 to 4, a following truck (7) equipped with an earth removal belt conveyor (6) is installed at the rear of the excavator (1), and the truck (7) and the excavator ( 1) with wires etc., and the trolley (7) is connected to rails (8) in the direction of the tunnel (3), which are laid at predetermined intervals on sleepers (2).
, (8), and between the rails (ε) and (8), there is a weighing unit (9) on the sleeper (2) so that a part of it enters into the trolley (7). ).

This weighing unit (9) is connected to the cart (7) by a slide jack Q0, and the substrate α◇u1 which can be slid on the sleeper (2) by the operation of the slide jack 00 On the board (9) are provided auxiliary rails α■, 0 for Zuritoro, which serve as measuring rails.

In addition, as shown in Figures 5 to 7, auxiliary rails (l,
At the rear of H, a measuring device α→ such as a load cell is installed to measure the weight of the earth and sand in the mouth (C).
Furthermore, as shown in FIGS. 8 and 9, auxiliary rails a■, α
[Phase] At the rear end, there is a slide jack (1017) that closes the gap that is formed between the rear rails when the weighing unit (9) slides forward by operation. A useless telesco rail α0 is installed in series. In the figure, d is the wheel of Zuritro (a).

FIG. 10 shows an example of the connection of the measuring instrument (14), where the wire is a junction box, Ql) is an amplifier, and (Ql) is an amplifier.
A) shows the measuring instrument output conversion board, and (c) shows the indicator. In such a configuration, when excavating with the excavator (1), the trolley (7) and the measuring unit (9) The slide jack 00 in between is set in a free state in advance. However, when the excavator (1) excavates forward (see the imaginary line in Figure 6), the trolley (7) connected to the excavator (1) moves to follow the excavator (1), but the weighing unit (9) maintains the stopped state.

When doing excavation work in this way,
Auxiliary rail a3 whose opening (2) incorporates a measuring device 04)
．． It is located above the alpha hemorrhoid, receives earth and sand from the belt conveyor (6), and measures its weight. Based on this measured value, it is checked whether the planned excavation speed of the excavator (1) matches the amount of soil removed, and if they do not match, the excavator (1)
Adjust the digging speed.

In this case, since the place where the weight of the earth and sand is measured is immediately after the excavator (1), speed control can be performed immediately with almost no time lag.

After performing a predetermined excavation work with the excavator (1), that is, when the slide jack 00 reaches the stroke end or just before reaching the stroke end, the slide jack 00 is retracted. The weighing unit (9) connected at the OQ is pulled toward the trolley (7) by sliding the sleeper (2), and then the excavation work is carried out while measuring the amount of soil removed again. Telescopic rails α are connected to the auxiliary rail α frame and α rear end of the weighing unit (9), so even if the weighing unit (9) slides forward as described above, the telescopic rail will not move. By extending the rail α0, no gap is formed between it and the rear sliding rail (4). Therefore, repeat the above process an appropriate number of times,
When Zuritoro (A) is filled with earth and sand, Zuritoro (A) can be immediately transported to the shaft section.

In addition, in the above, the extension stroke of the telescopic rail α is made to match the standard length of the Zuritro rail (4), and when the extension stroke of the telescopic rail α0 reaches the specified length, the telescopic rail α is contracted. It is convenient if you add a regular length rail for Zuritoro (G). Especially ZIJ
) while the mouth (a) is being transported to the shaft part
If you add the daily use rail (4), you can make the work smoother, and this addition work can be done by the excavator (1).
), the trolley (7), the weighing unit (9), and other main structures, so it can be carried out safely in a wide space.

In the above embodiment, the case where the telescopic rail α was used was exemplified, but without using the telescopic rail α, before the weighing unit (9) moved forward by a fixed length,
It is also possible to sequentially add the rails for sliding.

Fig. 11 and Fig. 12 show another embodiment of the present invention, and in the previous embodiment, the slider rail (4) was sequentially added at the rear of the weighing unit (9), but in this embodiment, In front of the weighing unit (9), insert the Zuritoro rail (4).
) is added sequentially. The same reference numerals as in the previous embodiment indicate the same parts.

That is, in this embodiment, the carriage (7) is fixed on the sleeper (2), the daily rail (a), and (4).
) and a slide jack (10), a board α◇ connected to the board (11) is slidably placed, and on the board (11) is a measuring rail α't) and a measuring rail α tilted forward and backward by the force. A weighing unit (9) is formed by arranging the rails (c) and 01, and further providing a weighing device 04) on the weighing rail 07), and the weighing unit (9) is operated by the slide jack 00. Before it slides on the Zuritoro rail (A) and (A) and is pulled to the trolley (7) side, the daily use rail (A) of the standard length (IJ) is sequentially placed on the front of the weighing unit (9). It is something that can be continued.

In the case of this method, since the addition work of the Zuri-J Toro rail (A) is not performed behind the weighing unit (9), the movement of the Zuri-Toro 02 is not hindered by the addition work.

As explained above, according to the present invention, the soil discharge status can be measured at any time while the excavator is excavating, so it is checked whether the planned excavation speed of the excavator and the amount of soil discharged are appropriate. If the excavation speed is not appropriate, the excavation speed can be immediately controlled, which is an excellent effect.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing the entire device of the present invention, FIG. 2 is a side view showing details of the device of the present invention, FIG. 3 is a plan view of FIG. 2, and FIG. 4 is a side view of the device of the present invention. 5 is a plan view showing the main parts of the device of the present invention, FIG. 6 is a side view of FIG. 5, and FIG.
The figure is a view taken in the ■ direction of Fig. 5, Fig. 8 is a plan view of the telescopic rail, Fig. 9 is a view taken in the - direction arrow of Fig. 8, and Fig. 10 is an explanation showing an example of the connection state of the measuring instrument. 11 is a side view showing another embodiment of the apparatus of the present invention, and FIG. 12 is a view taken in the cutting direction of FIG. 11. (1)...Shield excavator, (2)...Sleeper, (7
)...Following trolley, (9), (95...Measuring unit), OO...Slide jack, α4)...Measuring instrument. Patent Applicant: Kubota Tekko Co., Ltd. Patent Applicant: Ishikawajima Harima Heavy Industries Co., Ltd. Patent Applicant: Tokyo Sales Co., Ltd. Patent Applicant Agent Patent Applicant Agent Figure 1 Figure 2 2-8-8 Yaesu, Chuo-ku, Tokyo■ Applicant Kajima Corporation 1-2-7 Motoakasaka, Minato-ku, Tokyo

Claims (1)

[Claims] 1) A trailing trolley can be connected to the rear of the shield tunneling machine to follow the excavation movement of the shield tunneling machine, and a measuring unit for measuring the amount of soil removed can be slid under the earth and sand discharge port of the trailing truck. 1. A device for measuring the amount of excavated earth for a shield excavator, characterized in that the measuring unit and the following truck are connected by a slide jack or the like.