JP2008248500A - Shield machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the size in a carriage group, to reduce the size in a shield machine, and to reducing manufacturing cost, by effectively using a space existing between carriages. <P>SOLUTION: This shield machine has a shield machine body 1 and the carriage group 2 towed by the shield machine body and capable of traveling on a rail 16. A plurality of carriages constituting the carriage group are connected by a connecting bar 15. The connecting bar of a required place is provided with a load receiver for transmitting a vertical load acting on the connecting bar to the rail by sliding on the rail. An apparatus ancillary to the shield machine body can be placed on the connecting bar. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a shield machine for excavating a tunnel, and more particularly to a shield machine for effectively using space in a group of towed trucks.

  The shield machine is composed of an excavator body and a carriage group that is pulled by the excavator body and includes a plurality of carriages.

  The main body of the excavator rotates a disk-shaped cutter head provided with a number of cutters to excavate the ground, and the excavated earth and sand are discharged backward by a screw conveyor. Further, the bogie group is connected to the excavator main body via a connecting means, and the bogie group follows as the excavator main body advances.

  The carriage group is composed of a valve unit carriage, an operation carriage, a pump unit carriage, etc., and the carriage includes equipment necessary for driving the excavator body, such as a valve unit, an operation panel, a hydraulic pump, a working fluid (actuating fluid) Oil) and a grease pump unit that supplies grease as a lubricant. Each carriage is connected by a connecting bar, and the leading carriage and the excavator main body are connected by a required connecting means such as a wire or a rod.

  A sediment transport hose and various cables are arranged along the carriage group, and the bending degree of the sediment transport hose and various cables is limited due to strength, flexibility, and the like. For this reason, the length of the connecting bar is determined so as to keep the distance between the carts at a predetermined interval or more so as not to place a burden on the earth and sand transport hose and various cables even when the cart group is curved. ing.

  For this reason, a space that has been necessary between the trolleys but has not been effectively used has been formed.

Japanese Patent Application Laid-Open No. 11-106767

  In view of such a situation, the present invention effectively utilizes the space existing between the carriages to make the carriage group compact, the shield machine advanced, and the production cost reduced.

  The present invention comprises an excavator main body and a carriage group that is pulled by the excavator main body and can travel on a rail, and a plurality of carriages constituting the carriage group are connected by a connecting bar, and the connecting bar at a required location is connected to the connecting bar at a required location. A shield machine that provides a load receiver that slides a rail to transmit a vertical load acting on the connection bar to the rail, and that allows the equipment associated with the machine body to be placed on the connection bar. is there.

  Further, the present invention relates to a shield machine in which the accompanying device is a grease pump unit, and the grease pump unit is a cable that prevents interference with hoses and cables disposed along the carriage group. The present invention relates to a shield machine equipped with a guide.

  According to the present invention, an excavator main body and a cart group that is pulled by the excavator main body and can run on a rail are provided, and the plurality of carts constituting the cart group are coupled by a coupling bar, and a coupling bar at a required location. A load receiver that transmits a vertical load acting on the connecting bar by sliding the rail to the rail is provided, and an apparatus associated with the excavator body can be placed on the connecting bar. Space can be used effectively, and the bogie group can be made compact, the shield machine can be made compact, and the production cost can be reduced.

  Furthermore, according to the present invention, the grease pump unit includes a cable guide that prevents interference with a hose and cables arranged along the carriage group, so that the carriage group moves along a curve. The hose and cables are in contact with the grease tank, grease pump, etc., preventing the tank from overturning, and there is no problem even if equipment attached to the excavator body is installed between the carts. Demonstrate.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  First, an outline of the shield machine according to the present invention will be described with reference to FIGS.

  In the figure, 1 is an excavator main body, 2 is a bogie group, and 3 is a segment bogie.

  The excavator main body 1 will be described.

  A disk-shaped cutter head 5 in which a large number of cutters 4 are implanted is rotatably supported via a cutter head shaft 6, the cutter head 5 is rotated by an excavating motor 7, and the cutter head 5 is driven by a propulsion cylinder 8. Propulsion is given.

  The earth and sand excavated by the cutter head shaft 6 is made muddy water, discharged by a screw conveyor 9, and further conveyed rearward by a conveying hose 10.

  A segment 19 is affixed to the tunnel wall surface after excavation, and the segment 19 is lifted to the affixing position by the erector 11 and moved.

  The carriage group 2 will be described briefly.

  The carriage group 2 is constituted by a carriage such as a valve unit carriage 12, an operation carriage 13, a pump unit, a pump unit carriage 14 equipped with a tank in which a working fluid, for example oil, is mounted. Each carriage of the carriage group 2 rides on a rail 16 so as to run freely, and the rail 16 is supported by sleepers 17 provided at a required interval in the traveling direction.

  The trucks are connected by a connecting bar 15 having rigidity in the longitudinal direction, and a grease pump unit 18 is mounted on the connecting bar 15 that connects the operation carriage 13 and the pump unit carriage 14.

  In addition to the rail 16 of the carriage 2, a segment carriage rail (not shown) is laid, and the segment carriage 3 is ridden on the segment carriage rail so that the segment carriage 3 can run. Carries the segment 19.

  The excavator main body 1 and the head carriage of the carriage group 2, that is, the excavator main body 1 and the valve unit carriage 12 are connected by a flexible linear member that is a connecting means, for example, a pulling wire 21, and the traction A front end of the wire 21 is engaged with a strength member of the excavator main body 1, for example, a bracket 22 provided at a rear end portion of the screw conveyor 9. Further, a cart runaway prevention device 23 is provided between the excavator main body 1 and the valve unit cart 12.

  The cart escape prevention device 23 will be described.

  One end of a flexible linear member such as a runaway prevention wire 27 is attached to a fixing member such as the screw conveyor 9, and the runaway prevention wire 27 is hooked on a pulley 26 provided in front of the valve unit carriage 12. It is drooping after being turned.

  A runaway prevention stopper 28 is attached to the lower end of the runaway prevention wire 27 that hangs down. The escape prevention stopper 28 is a rod-like member having a tapered lower end, and the escape prevention stopper 28 has a weight enough to always generate a predetermined tension on the escape prevention wire 27.

  For example, when the valve unit carriage 12 moves forward and the distance between the valve unit carriage 12 and the excavator main body 1 is reduced, the escape prevention stopper 28 is lowered and positioned below the sleepers 17. The sleeper 17 and the escape prevention stopper 28 are engaged to prevent the valve unit carriage 12 from running away.

  When the excavator main body 1 moves forward and the distance from the valve unit carriage 12 increases, the escape prevention stopper 28 is lifted, the interference with the sleepers 17 is released, and the valve unit carriage 12 moves forward. It becomes possible.

  The grease pump unit 18 is mounted on a connecting bar 15 that connects the operation carriage 13 and the pump unit carriage 14, and a space formed between the operation carriage 13 and the pump unit carriage 14 is used.

  The grease pump unit 18 and the connecting bar 15 on which the grease pump unit 18 is placed will be described with reference to FIGS. In FIG. 3, the illustration of the front operation carriage 13 is omitted.

  A rear end portion of the connection bar 15 is connected to a connector 31 projecting from the front surface of the pump unit carriage 14 via a connection pin 32. Although not shown, the front end portion of the connection bar 15 is connected to a connector provided on the rear surface of the operation carriage 13 via a connection pin.

  A load receiver 33 is provided on a substantially central lower surface of the connecting bar 15, and the load receiver 33 slides on the rail 16. A vertical load acting on the connecting bar 15 is applied to the rail 16. It is supposed to communicate.

  FIG. 4 shows a case where the carriage group 2 travels on two rails.

  The load receiver 33 includes an auxiliary beam 34 extending in a direction perpendicular to the rail 16, a rail slide 35 attached to the auxiliary beam 34 and slidable with respect to the rail 16, and the rail slide 35. Consists of a sliding member 36 that slides on the rail 16 and a bracket 37 that supports the sliding member 36.

  As shown in FIG. 4, when the rail 16 has two strips, two sets of the rail slide 35 are provided for each rail 16, and when the rail 16 has one strip, the rail slide 35 becomes one set. In the case of one set, the rail slide 35 is directly provided on the connecting bar 15 and the auxiliary beam 34 is omitted.

  A device associated with the excavator main body 1, for example, the grease pump unit 18 is mounted on the connecting bar 15, and the space between the operation carriage 13 and the pump unit carriage 14 is effectively used.

  When the pump unit carriage 14 is placed on the connecting bar 15, the weight of the pump unit carriage 14 is supported by the rail 16 via the load receiver 33.

  When the carriage group 2 moves, the load receiver 33 slides on the rail 16 to follow.

  A base 38 is fixed to the connecting bar 15, and a grease tank 39 can be placed on the base 38. In FIG. 3, reference numeral 42 denotes a grease tank lid, and 46 denotes an opening / closing device for opening and closing the lid.

  A cable guide 48 formed by bending a pipe into a gate shape is erected on one side of the pedestal 38 and on the wall side of the tunnel. The cable guide 48 receives the transport hose 10 and cables with the cable guide 48 even when the carriage group 2 is curved and the operation carriage 13 and the pump unit carriage 14 are bent. The conveyance hose 10 and cables are prevented from coming into contact with the grease pump unit 18.

  Further, the periphery of the grease pump unit 18 is a space, and the work for replacing the grease tank 39 is a work in a sufficiently roomy space, and the workability is good.

  The connecting bar 15 provided with the load receiver 33 is not limited to the space between the operation carriage 13 and the pump unit carriage 14, and can be placed on the connecting bar 15 only in the grease pump unit 18. It is not a thing.

It is a schematic sectional side view of the shield machine according to the present invention. It is a schematic plane sectional view of the shield machine according to the present invention. It is a side view of the grease pump unit in the shield machine according to the present invention. It is a front view of the grease pump unit. It is a top view of this grease pump unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Excavator main body 2 Bogie group 5 Cutter head 9 Screw conveyor 12 Valve unit carriage 15 Connection bar 16 Rail 17 Sleeper 18 Grease pump unit 21 Pulling wire 23 Bogie escape prevention device 27 Escape prevention wire 28 Escape prevention stopper 33 Load receiving 34 Auxiliary beam 36 Sliding member 39 Grease tank 48 Cable guide

Claims (3)

  The excavator main body and a cart group that is pulled by the excavator main body and can run on the rail are provided, and a plurality of carts constituting the cart group are coupled by a coupling bar, and the rail slides on the coupling bar at a required location. A shield engraver characterized in that a load receiver for transmitting a vertical load acting on the connecting bar to the rail is provided, and equipment associated with the engraving machine main body can be placed on the connecting bar.   The shield machine according to claim 1, wherein the accompanying device is a grease pump unit.   3. The shield machine according to claim 2, wherein the grease pump unit includes a cable guide that prevents interference with hoses and cables arranged along the carriage group.

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