JPH061679Y2 - Transport device for shield - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a carrier device for carrying in a construction machine such as a segment in the rear equipment of a shield machine.

[Prior art] At the shield construction site, hydraulic pressure,
There are a series of rear bogies equipped with electrical equipment, and construction machinery such as segments must be carried into the shield machine through the rear bogies. Machine loading is
This is often done by a carrier beam erected from a shield machine through a rear carriage and a carrier such as a hoist or a chain block that is suspended by the carrier beam and travels, but conventionally, one straight I beam is used as the carrier beam.
The beam was being used.

[Problems to be solved by the invention] However, since the rear carriage is generally connected to two or three units, if the carrier beam is one straight beam, it is shown in FIG. 9 in the curved section of the excavation line. As described above, the carrier beam 6 in the rear carriage 4 is offset from the center of the carriage, which may hinder the transportation of the equipment through the internal space of the rear carriage 4. This tendency is remarkable especially in a sharp curve section where the curve radius is small.

The object of the present invention is to enable smooth transportation of equipment through a narrow inner space of a rear bogie even in a curved section of an excavation route. It is to provide a transport device for a shield.

[Means for Solving the Problems] The above-mentioned object is to sequentially connect carrier beams so as to be horizontally rotatable by pins between a shield machine and a rear bogie and between bogies and bogies, and to convey the carrier beam. This is achieved by slidably buttingly connecting the joint portion of the moving surface in the shape of a male and female arc centered on the pin.

[Operation] Since the carrier beam connected so as to be rotatable in the horizontal direction by the pin can be freely bent at the connection part, a connection part is provided between the shield machine and the rear bogie and between the bogie and the bogie. By placing it on the ground, the carrier beam can be kept at the center position of the rear carriage even in the curved section of the excavation route, and there is no hindrance to the transportation of the equipment.

Further, since the joint portion of the carrier rolling surface of the carrier beam is slidably butted and connected as a male and female arc centered on the pin, even if the carrier beam is bent, the carrier rolling surface is , It is possible to smoothly run the conveyor on a continuous surface without any gaps in the seams.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 are views showing the installation state of the transfer device.
Reference numeral 1 is a shield machine, which goes straight or bends while excavating the natural ground. Reference numeral 2 is a segment that is assembled inside the shield machine 1 to construct a tunnel. Reference numeral 3 is a belt conveyor that carries the excavated earth and sand backward. 4 is a rear trolley, equipped with hydraulic and electric equipment for driving the shield machine,
It is pulled by the shield machine 1 and travels on the track 5.
A carrier beam 6 is installed from the shield machine 1 to the rear through the rear carriage 4. A transport machine 7 is suspended by the transport beam 6 and travels, and carries equipment such as segments into the shield machine 1 from behind. FIG. 3 is a detailed view of a hoist used as a carrier.

The carrier beam 6 divides a straight I-beam for each carriage,
The shield machine 1 and the rear bogie 4 and the bogies and bogies are sequentially connected by a connecting portion 8. The detailed structure of the connecting portion 8 is as shown in FIGS. 6 to 8, and the end portion of the carrier beam 6 to be connected is partially cut out, and the pin 11 is passed through the hole of the joint fitting 9, 10 welded thereto. The joint metal fitting 10 is fastened with a nut 12, and the front and rear carrier beams 6 are connected so as to be rotatable in the horizontal direction around a pin 11. further,
The seam portion 14 of the carrier rolling surface 13 of the carrier beam 6 is formed in a female and male arcuate shape centered on the pin 11 and slidably butted and connected.

With this configuration, the carrier beam 6 is
It bends freely in the horizontal direction around 11, and moreover,
The carrier rolling surface 13 of the carrier beam 6 is maintained as a continuous surface without any gap in the joint portion 14.

4 and 5 are state diagrams of the rear bogie 4 and the carrier beam 6 as seen from above, and FIG. 4 shows the state when the excavation route is a straight section.
The figure shows the case where the excavation route is a curved section. As shown in the figure, the carrier beam 6 becomes straight in the straight section and bends at the connecting portion 8 following the carriage 4 in the curved section. Therefore, the carrier beam 6 can be maintained at the respective center positions of the carriage in both the straight section and the curved section. Moreover, as described above, since the carrier rolling surface 13 of the carrier beam 6 is always kept as a continuous surface, the carrier 7 travels smoothly on the carrier beam 6 and is passed through the rear carriage 4 Can be transported.

[Advantage of the Invention] According to the present invention, the positional relationship between the carrier beam and the rear bogie can be kept constant regardless of the straight line, the curve and the curve radius of the excavation route, so that the rear bogie can be maintained even in a sharp curve section. The equipment can be transported through the narrow space in the room without any hindrance. In addition, the carrier rolling surface of the carrier beam is maintained as a continuous surface without any gaps in the joints even when the carrier beam is bent in a curved section, so the carrier should run smoothly. The gap between the joints does not impair the life of the rolling wheels of the conveyor.

[Brief description of drawings]

FIG. 1 is a vertical sectional view from a shield machine to a rear bogie showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line II of FIG.
FIG. 3 is a detailed view of the carrier, (a) is a front view, (b) is a side view, and FIG. 4 is a II-II arrow view of FIG.
The figure is a view taken along the line II-II of FIG. 1 in a curved section, FIG. 6 is an enlarged side view of the carrier beam connecting portion, and FIG. 7 is III-III of FIG.
A sectional view, FIG. 8 is a sectional view taken along line IV-IV of FIG. 6, and FIG. 9 is an explanatory view of a conventional technique. 1 ... Shield excavator, 2 ... Segment, 3 ... Belt conveyor, 4 ... Rear carriage, 5 ... Orbit, 6 ... Conveyor beam, 7 ...
Transporter, 8 ... Transport beam connection, 9, 10 ... Joint fittings,
11 ... Pin, 12 ... Nut, 13 ... Carrier rolling surface, 14 ... Conveyor rolling surface joint.

Claims (1)

[Scope of utility model registration request] 1. A shield carrier comprising a carrier beam erected from a shield machine through a rear carriage and a carrier suspended by the carrier beam, the carrier beam being used as a shield machine. The rear bogie and the bogies are sequentially connected by a pin so that they can be rotated horizontally, and the joint part of the carrier rolling surface of the carrier beam is slidable as a male and female arc centered on the pin. Shield transfer device characterized by being connected to each other.