JP2633114B2 - Tractor for shield work - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a towing vehicle for shield construction for carrying in a segment and carrying out excavated soil in a segment pit having a substantially circular cross section.

[0002]

2. Description of the Related Art Conventionally, when a segment or excavated soil is transported in a shield work, a rail is laid in a segment pit and an electrically driven tow truck running on the rail has been used.

[0003]

However, when such a transportation system using a tracked towing vehicle is employed,
There were the following problems. (1) Laying and removing work of rails and sleepers is required in a segment mine having a substantially circular cross section, and this is a severe operation, particularly in a relatively small pit having a relatively small inner cross section. (2) The removal and laying of the rails has been necessitated anew for cleaning the soil under the rails necessary for the secondary lining work. (3) The low utilization rate of the inner space section due to the installation of rails limits the rear equipment to a small size, and also limits the shapes of scrap cans, segment trucks, etc., resulting in extremely low work efficiency and cycle time. It is in a state. (4) If the rail laying accuracy is poor, a derailing rollover accident occurs, which is also an unsafe operation.

The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a method for laying a rail in a pit having a relatively small inner cross section using a shield excavator having a medium diameter or less. An object of the present invention is to provide a towing vehicle for shield construction which can greatly contribute to labor saving, shortening of construction period, unmanned construction and safe construction by eliminating removal work.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a towing vehicle for shield work for carrying in a segment and carrying out excavated soil in a segment pit having a substantially circular cross section. A drive wheel disposed so as to be in contact with the center of the bottom surface of the segment pit, and a rolling wheel each rotatably disposed so as to be in contact with both sides of the center of the bottom surface of the substantially circular segment pit. It is characterized by having. Further, the present invention is characterized in that the driving wheel and the rolling wheel are each constituted by an endless track type wheel. Further, the present invention is characterized in that the driving wheel and the rolling wheel are each constituted by a tire-type wheel.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic side view of a tow truck for shield work according to a first embodiment of the present invention when a steel segment or the like is towed, and FIG. 2 shows the relationship between endless track type driving wheels and rolling wheels in the tow truck. It is a principal part front view shown.
1 and 2, 1 is a steel segment pit having a circular cross section, 10 is a railless transport device for shield work, 11
Is an electric unmanned towing vehicle, 21 is a segment bogie, and 31 is a slippery vehicle.

In this first embodiment, a battery, an electric motor, a transmission, a radio transceiver and the like are mounted on an electric unmanned towing vehicle 11, and a pair of front and rear endless driving wheels 13, 13 are provided at the center in the vehicle width direction. Is arranged, on both left and right sides in the vehicle width direction,
Endless track type rolling wheels 15 and 15 long in the front-rear direction are provided. Here, the endless track type drive wheel 13 is disposed so as to be in contact with the center of the bottom surface in the substantially circular steel segment shaft 1. The endless track drive wheel 13 is made up of a rubber crawler mounted on a drive wheel and a driven wheel, and is configured to increase the ground friction resistance so as to prevent slipping in the steel segment mine 1 and to perform reliable traveling. ing. Similarly, the endless track type rolling wheel 15 is also formed by mounting an endless track belt made of a rubber crawler longer than that described above on a rotatable wheel body in the front-rear direction of the vehicle body. It is arranged to be grounded on both sides in the center.

On the other hand, at the center of the bottom surface in the steel segment pit 1, left and right ridges 5 and 5 for wheel guidance are mounted on the steel segment 3 in advance in a production process at a factory or the like. The segment truck 21 is configured to stack a plurality of steel segments 3... On the outward path as shown in the drawing, and to load excavated soil (not shown) on the return path. The endless orbit type rolling wheels 25, 25 are provided. Furthermore, Zuritro car 31
It is provided with a vacuum device equipped with a vacuum pump 37, and is configured to suck up the sediment spilled and accumulated on the inner bottom of the segment shaft 1. , 35 are provided.

A plurality of segment trucks 21... Are connected to the electric unmanned towing vehicle 11, and a zuritro truck 31 is connected to the rear end.
Of a railless transport device 10 for shield work for construction. As described above, the electric unmanned towing vehicle 11 includes the endless track type driving wheels 13 and 13 at the front and rear of the center in the vehicle width direction and the left and right endless track type rolling wheels 15 and 15, and the conventional rail running on rails. Since the running resistance is increased as compared with the case of (1), a battery having the capacity and capacity corresponding to the running resistance is provided. Further, the endless track type driving wheel 13 and the endless track type rolling wheel 15
Are suspended and supported by the towing vehicle 11 by free suspensions in the up / down, front / rear, and left / right directions. The same applies to the suspension of the endless track type rolling wheel 25 of the segment bogie 21 and the endless track type rolling wheel 35 of the zuritro car 31. is there.

[0010] The first electric unmanned towing vehicle 11 is provided with an obstacle detector 19 such as an ultrasonic detector for detecting an obstacle ahead including a worker. Is similarly provided with an obstacle detector 39 for detecting a rear obstacle using an ultrasonic detector or the like. Although not shown, the first car and the last car are provided with industrial television cameras for underground monitoring.

The above-described railless transport device 10 for shield work
According to this, the endless track driving wheels 13 of the electric unmanned towing vehicle 11 are driven and run along the ridges 5 and 5 at the bottom center in the steel segment pit 1 while being guided, and are driven in the vehicle width direction. Left and right endless track type rolling wheels 15, 15, 25, 2
5, 35, 35 also rotate, and unmanned operation is performed. Here, for example, in the vicinity of a solid mine, manual remote control is performed, and in the mine, the wired equipment and the towing vehicle 1 inside the segment are used.
The unattended operation is performed by the transmitter / receiver installed in 1. By the above system, the transport of the steel segments 3 to the excavation site and the loading and unloading of excavated soil are performed.

[0012] During the traveling on the outward and return trips, the spills and spills during excavation and transportation and accumulated on the inner bottom of the segment pit 1 are removed by a vacuum device by a vacuum pump 37 mounted on the last slipper wheel 31. When the suction is performed, the inner bottom of the segment pit 1 is also cleaned, so that the vehicle can travel smoothly. In addition, by providing non-contact type detectors 19 and 39 such as ultrasonic detectors on both the electric powered unmanned towing vehicle 11 at the head and the slippery vehicle 31 at the rear end, a person or an obstacle approaches a certain distance. In this case, the operation of the vehicle can be stopped by stopping the vehicle.

Next, a towing vehicle for shield work according to a second embodiment of the present invention will be described with reference to FIGS. 3 and 4, reference numeral 7 denotes a concrete segment pit, 11 denotes an electric unmanned towing vehicle, 21 denotes a segment truck, and 31 denotes a slippery vehicle. The second embodiment is the same as the first embodiment except that the configuration of the driving wheels and the rolling wheels is different from that of the first embodiment for traveling in the concrete segment pit 7.

That is, the electric unmanned towing vehicle 11 equipped with a battery, an electric motor, a transmission, a radio transceiver, and the like has front and rear tire-type drive wheels 14, 14 having rubber tires mounted at the center in the vehicle width direction. Tire-type front and rear rolling wheels 16 and 1 provided with rubber tires on both left and right sides in the vehicle width direction.
.. Are arranged. That is, the endless track driving wheel 13
Are disposed so as to be in contact with the center of the bottom surface in the substantially circular concrete segment pit 7, and the tire type rolling wheels 16, 16 are to be in contact with both sides of the center of the bottom surface in the concrete segment pit 7. It is arranged. Here, the reason why the tire-type drive wheel 14 is used is that the inner surface of the concrete segment shaft 7 has a higher frictional resistance than the inner surface of the steel segment shaft 1, and can be driven by a rubber tire. In the example shown in FIG. 4, the tire-type drive wheel 14 has a small diameter paired on the left and right, but may be a single wheel having the same diameter as the tire-type rolling wheel 16 (see FIG. 3).

As shown in the figure, a plurality of concrete segments 9... And a segment truck 21 on which excavated soil is loaded are mounted on front and rear tire-type rolling wheels 26, 26 having the same configuration at the left and right at the center in the vehicle width direction. Are arranged. Further, the tire-type rolling wheels 36, 36,... Having the same configuration as those described above are disposed on the left and right sides of the center of the vehicle 31 in the vehicle width direction also on the vehicle 31 equipped with a vacuum device equipped with a vacuum pump 37. Have been. Thus, in the case of the segment transport tractor for the concrete segment pit 7, the tire-type driving wheels 14, 14, the tire-type rolling wheels 16, 16, ..., 26, 26, ..., 36, 36, ...
・ Adopt

It should be noted that specific details of the configuration and the like can be appropriately changed as required in addition to the embodiment. Further, the size of the vehicle is not limited to a relatively small underground vehicle having a hollow cross section using a shield excavator having a medium diameter or smaller, and may be a large towing vehicle for a large diameter underground vehicle.

[0017]

As is apparent from the above description, according to the towing vehicle for shield work according to the present invention, the drive wheel disposed so as to be in contact with the center of the bottom surface of the substantially circular segment mine, and the segment The vehicle is driven by rolling wheels that are rotatably disposed so as to be in contact with both sides of the center of the bottom of the mine, and rolling wheels that rotate on both sides of the center of the bottom of the substantially circular segment mine are provided. Since the bogie was towed by the vehicle, in particular, the work of laying and removing rails in a relatively small pit with a hollow cross section using a shield excavator with a medium diameter or less can be eliminated, which can greatly contribute to labor saving, The construction period can be shortened and unmanned construction can be further advanced, which can greatly contribute to safe construction.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a towing vehicle for shield work according to a first embodiment of the present invention.

FIG. 2 is a main part front view showing a relationship between endless track type driving wheels and rolling wheels in the towing vehicle.

FIG. 3 is a schematic side view of a towing vehicle for shield work according to a second embodiment of the present invention.

FIG. 4 is a main part front view showing a relationship between tire-type drive wheels and rolling wheels in the towing vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Steel segment pit 3 Steel segment 7 Concrete segment pit 9 Concrete segment 10 Railless transportation device for shield construction 11 Electric unmanned towing vehicle 13 Endless track type driving wheel 14 Tire type driving wheel 15 Endless track type rolling wheel 16 Tire type rolling wheel DESCRIPTION OF SYMBOLS 19 Detector 21 Segment truck 25 Endless track type rolling wheel 26 Tire type rolling wheel 31 Zuritro wheel 35 Endless track type rolling wheel 36 Tire type rolling wheel 37 Vacuum pump 39 Detector

Claims (3)

(57) [Claims] 1. A shield construction for carrying in a segment and carrying out excavated soil in a segment pit having a substantially circular cross section.
A towing vehicle, so that the ground in the center of the nearly circular segment downhole bottom
And it has been driven wheels disposed, to the ground on either side of the center of the bottom surface of the substantially circular segment downhole
Shield for construction towing vehicle, characterized in that it comprises a rolling wheel which is respectively rotatably disposed so that the. 2. The shield work according to claim 1, wherein the driving wheel and the rolling wheel are each constituted by a track-type wheel.
Tow truck . 3. The traction work for shield work according to claim 1, wherein the drive wheel and the rolling wheel are each constituted by a tire type wheel.
Pulling .