JP5977607B2 - Hose drum trolley and bridge rail - Google Patents

Description

The present invention relates to a hose drum carriage and cross rails used in shield tunneling.

  In the muddy water type shield method, the muddy water mixed with the muddy water and the excavated sediment in the chamber is discharged through the mud pipe while supplying the muddy water into the chamber of the shield machine through the mud pipe. It is a method of excavating tunnels.

  As the shield machine advances, the mud pipe and the mud pipe need to be appropriately extended. For this extension, there is a method in which a hose drum carriage is provided behind the carriage following the shield machine.

This hose drum carriage includes a frame that can run on rails for subsequent carriages, a drum that is mounted so as to be relatively movable in the front-rear direction with respect to the frame, and a flexible hose provided so as to be folded back by the drum. The main component.
When the shield machine moves forward, the mud pipe and the mud pipe can be extended by storing or feeding out the flexible hose as the drum moves.

When the curvature of the excavation path is increased, the hose drum cart may not be bent and may protrude into the adjacent material conveyance path.
In order to solve the above problem, a hose drum truck described in Patent Document 1 below is known.

  In the hose drum carriage described in Patent Document 1, a bridge rail having a U-shaped cross section is fitted between the rails of the divided carriage divided in the front-rear direction in a manner in which play is provided, and the bridge rail is allowed to slide by this amount of play. By doing so, the front and rear movement of the drum mounted on the carriage is ensured while corresponding to the bending of the front and rear divided carriages.

Japanese Patent Laid-Open No. 11-131981

In the case of the curve-corresponding hose drum carriage, it is necessary to secure a larger play in the width of the bridge rail in order to cope with a steeper curvature.
However, if this play is made too large, the difference between the width of the support rail and the width of the bridge rail will increase, so that the bridge rail will rattle when straight running or at a place with a gentle curvature. There was a risk of hindrance to the back and forth movement.

  Accordingly, an object of the present invention is to provide a hose drum carriage and the like that can smoothly move the drum back and forth even in an excavation path having various curvatures.

1st invention of this application is the hose drum trolley | bogie used for a shield construction method, Comprising: The some division | segmentation trolley provided with the support rail for moving a drum to the front-back direction, The bridge | crosslinking rail provided between opposing division | segmentation trolleys. At least, the bridging rail spans between the upper surfaces of the support rails of the opposed split carriage, and a linkage portion extending downward from either side edge of both side edges of the flange portion; and The interlocking portion is connected to the support rail side surface of one split carriage in an urged state via an elastic body, and is brought into contact with the support rail of the other split carriage due to the bending of the hose drum truck . The hose drum cart is configured to be openable, and the end portions of the support rail and the both end portions of the flange portion have a tapered shape in plan view.

Further, according to a second invention of the present application, in the first invention, the plurality of divided carriages are connected in the order of a preceding carriage, one or more intermediate carriages, and a trailing carriage, and the intermediate carriage is the preceding carriage. Further, the overall length is shorter than that of the trailing carriage .

Further, the third invention of the present application is a bridging rail constructed between the support rails of a plurality of divided carriages constituting a hose drum carriage used in the shield method, and both ends of the flange section are tapered, Extending downward from either side edge of both side edges, connected to the support rail side surface of one split carriage via an elastic body, and with the support rail of the other split carriage accompanying the bending of the hose drum truck It is an object of the present invention to provide a bridge rail characterized by having at least an interlocking portion that can be opened by contact .

According to the present invention, any one of the following effects can be obtained.
(1) Because the bridging rail always stays in an appropriate position according to the excavation path due to the elastic body provided on the bridging rail, it can be used between the support rails of the front and rear divided carriages, whether straight or curved. Can be reliably crossed over and the drum can be moved back and forth smoothly.
(2) As described in Patent Document 1, there is no need to provide play by making the width of the bridge rail larger than the width of the support rail.
(3) By making the ends of the support rail and both ends of the flange portion tapered, the support rail and the bridging rail protrude from the traveling path of the drum when the hose drum carriage is bent halfway when the excavation path is bent. It becomes difficult to reduce the possibility of interfering with the forward and backward movement of the drum.
(4) By adjusting the number of installed intermediate carriages, it is possible to easily adjust the length of the entire hose drum carriage and cope with a desired curvature.

The schematic side view which shows 1st Example of the hose drum trolley | bogie of this invention. The schematic perspective view which shows the structure and attachment example of a bridge rail. The schematic plan view which shows the state of the bridge rail at the time of bending of an excavation path. The schematic side view which shows 2nd Example of the hose drum trolley | bogie of this invention. The schematic side view which shows 3rd Example of the hose drum trolley | bogie of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

<1> Overall Configuration FIG. 1 is a schematic side view showing a first embodiment of a hose drum truck according to the present invention.
The hose drum truck according to the present invention includes at least a plurality of divided carriages 1 and a bridging rail 2 provided between opposed divided carriages.
In this embodiment, the hose drum carriage is composed of three divided carriages, and for convenience of explanation, they are defined in order from the front as a preceding carriage 1a, an intermediate carriage 1b, and a trailing carriage 1c.
In addition, the hose drum carriage is provided with a hose 3 for appropriately extending the supply / discharge mud pipe and a drum 4 for routing the hose 3.
The hose 3 and the drum 4 are well-known members and will not be described in detail.

<2> Split Cart The split cart 1 is a device that travels in the excavation path while holding the drum 4 for feeding and storing the hose 3.
The divided carriage 1 may be an existing hose drum carriage divided in the front-rear direction and appropriately added with a coupling mechanism, a separately produced divided carriage, or a combination thereof. Also good.
Each of the divided carriages 1 is provided with a support rail 11 for supporting the drum 4.
When the drum 4 travels in the front-rear direction on the support rail 11, the hose 3 turned back by the drum 4 can be stored or delivered.

<3> Bridging rail The bridging rail 2 is a member that is installed between the support rails 11 between the opposed divided carriages 1 and interpolates the traveling path of the drum 4 when the drum 4 is moved back and forth.
The bridge rail 2 has at least a flange portion 21 and an interlocking portion 22.
An example of the bridge rail 2 will be described with reference to FIG.

<3-1> Eave part The eave part 21 is a longitudinal flat plate member that spans the upper surface of the support rail 11 between the divided carriages 1 facing each other. The length of the collar part 21 should just have the length which can interpolate the clearance gap between the support rails 11 of the division | segmentation carriage 1 which opposes at the time of the maximum bending of the excavation path assumed.
The width of the flange 21 is substantially the same as the width of the support rail 11, and both ends of the flange 21 are tapered in plan view.

<3-2> Interlocking Section The interlocking section 22 is a member for keeping the position of the collar section 21 at an appropriate position between the support rails 11 of the opposed divided carriage 1.
The interlocking part 22 can be composed of a flat member extending downward from one side edge of the flange part 21.
In the present embodiment, the interlocking portion 22 is provided extending downward from the outer edge of the flange portion 21.
The size of the interlocking portion 22 has such a size that it can come into contact with the support rail 11 (11b) of the divided carriage 1 on the side where the interlocking portion 22 is not connected at the time of the maximum bending of the assumed excavation path. Just do it.

<3-3> Mounting Example Next, a mounting example of the bridge rail will be described with reference to FIG.
The bridge rail 2 is coupled to the side surface of the support rail 11a of one of the divided carriages 1a and 1b in an urging state via the elastic body 23.
More specifically, a through-hole 221 for inserting a bolt 24 is provided in the support rail 11a of one split carriage and the interlocking portion 22. And the interlocking | linkage part 22 is connected with the support rail 11a using the volt | bolt 24 and the nut 25 in the state which interposed the elastic body 23 so that it may pinch | interpose between the side surface of the interlocking | linkage part 22, and the head of the volt | bolt 24.
As the elastic body 23, a known elastic member such as a spring or rubber can be used.
When attached in this way, the interlocking portion 22 is urged in a state along the side surfaces of the support rails 11a and 11b, and outward from the side surface of the support rail 11b with the connection position with the support rail 11a as a fulcrum. It becomes a state that can be freely opened.

<4> Operation Image Next, the operation of the bridge rail when the hose drum truck is bent will be described with reference to FIG.

(A) When going straight (not shown)
Since the elastic body 23 provided on the bridging rail 2 urges the interlocking portion 22 toward the side surface of the support rail 11b, the bridging rail 2 and the support rails 11a and 11b are positioned on the same straight line when traveling straight. It keeps the state.

(B) At the time of bending FIG. 3 is a schematic plan view showing a state when the hose drum carriage is bent leftward in the traveling direction.
First, the operation | movement at the time of the return | restoration of the bridge rail 2 provided between the preceding trolley | bogie 1a and the intermediate trolley | bogie 1b is demonstrated.

[Left bridge rail] (Fig. 3 (a))
When the preceding carriage 1a starts to turn left, the interlocking portion 22 of the left bridging rail 2 in the traveling direction comes into contact with the side surface of the support rail 11b of the intermediate carriage 1b and is gradually pushed outward.
At this time, the elastic body 23 starts to compress between the interlocking portion 22 and the bolt 24 while urging the interlocking portion 22 toward the side surface of the support rail 11b.
And the interlocking | linkage part 22 is gradually opened so that it may leave | separate from a side surface of the support rail 11a of the preceding trolley | bogie 1a as a fulcrum, maintaining the state along the support rail 11b always.
At this time, since both ends of the flange 21 have a tapered shape, it is difficult for the flange 21 to protrude from the trajectory of the support rails 11a and 11b. Similarly, since the end part of the support rail 11a of the preceding carriage and the end part of the support rail 11b of the intermediate carriage 1b also have a tapered shape, these end parts are difficult to protrude from the running path of the drum 4. .

[Right bridge rail] (Figure 3 (b))
Since the interlocking part 22 of the bridge rail 2 on the right side in the traveling direction is attached to the support rail 11a of the preceding carriage 1a, it moves in a direction away from the side surface of the support rail 11b of the intermediate carriage 1b. Without maintaining, the state along the side surface of the support rail 11a of the preceding carriage 1a is maintained.
At this time, since the rear end of the flange 21 and the end of the support rail 11b of the intermediate carriage 1b have a tapered shape, it is difficult for these ends to protrude from the running path of the drum 4.

(C) When returning from turning to going straight [left bridge rail]
The bridge rail 2 on the left side in the traveling direction naturally returns from the opened state to the straight traveling state by the restoring force of the elastic body 23. By this returning operation, the bridge rail 2 can always maintain an appropriate position between the opposed support rails 11.
[Right bridge rail]
The bridge rail 2 on the right side in the traveling direction is originally in the same position as when traveling straight, and thus will not be particularly described.

The bridge rail provided between the intermediate carriage 1b and the trailing carriage 1c will be briefly described. The interlocking portion 22 of the bridge rail 2 on the left side in the direction of travel causes the intermediate carriage 1b to turn along with the left turn of the intermediate carriage 1b. The elastic body 23 has a restoring force when it gradually moves away from the side surface of the support rail 11c of the trailing carriage 1c with the connecting portion as a fulcrum, and comes back to the time of straight travel, in contact with the side surface of the support rail 11b of the 1b. Therefore, it returns to the initial position.
Further, since the interlocking portion 22 of the right bridging rail 2 in the traveling direction is attached to the support rail 11c of the trailing carriage 1c, it shifts in a direction away from the side surface of the support rail 11b of the intermediate carriage 1b. Without performing the opening operation, the state along the side surface of the support rail 11c of the trailing carriage 1c is maintained, and remains in the same position as when the vehicle travels straight.

  Moreover, since the operation | movement of the bridge rail 2 at the time of the right turn of a hose drum trolley is the operation | movement which replaced the operation | movement at the time of the left turn mentioned above with right and left, detailed description is abbreviate | omitted.

  As described above, the bridge rail 2 always maintains an appropriate position between the opposing support rails 11 during the transition from the straight travel to the turn and from the turn to the straight travel. In any posture, the back and forth movement of the drum 4 is not hindered.

FIG. 4 is a schematic side view showing a second embodiment of the hose drum carriage of the present invention.
The bridging rail 2 used in the present invention may be provided with two through holes 221 in the front-rear direction for inserting the bolts 24 into the interlocking portion 22.
At this time, a corresponding through-hole 111 is also provided on the side surface of the support rail 11 of the divided carriage facing each other.

According to the present embodiment, it is possible to arbitrarily select which of the divided carriages 11 to which the bridge rail 2 is coupled to the support rail 11 of the divided carriage 1.
Further, since the bridge rail 2 can be used for the other support rail 11 provided in parallel, it is economical.

FIG. 5 is a schematic side view showing a third embodiment of the hose drum truck of the present invention.
The support rail 11 of the divided carriage 1 used in the present invention may be configured to have an uneven shape corresponding to the support rail 11 that faces the support rail 11 when viewed from the side.
In FIG. 5, a concave portion 112 is provided at the tip of one divided carriage, and a convex portion 113 corresponding to the concave portion 112 is provided on the other divided carriage. h is made as narrow as possible.
According to the present embodiment, during straight traveling, the gap h that is completely communicated between the support rails 11 facing each other is made as small as possible to make the drum 4 move more smoothly back and forth, and at the time of bending, the inner diameter at the radius of curvature. Collisions caused by the side support rails 11 approaching each other can be avoided.

In constructing the hose drum truck according to the present invention, one or more separately produced intermediate carriages can be provided between the divided carriages produced by dividing the existing hose drum carriage.
For example, the leading carriage 1a and the trailing carriage 1c in FIG. 1 can be configured by dividing an existing hose drum carriage and providing an appropriate connecting mechanism, and the intermediate carriage 1b can be a newly manufactured device.
At this time, if the bridging rail 2 is provided at one end or both ends of the support rail 11b of the intermediate carriage 1b, the through holes 111a and 111c are provided on the divided carriages 1a and 1c produced by dividing the existing hose drum carriage. The processing to provide becomes unnecessary.
Moreover, the length of the whole hose drum trolley | bogie can be adjusted by adjusting the installation number of this intermediate trolley | bogie 11b, and can also respond to a desired curvature.

DESCRIPTION OF SYMBOLS 1 Divided carriage 11 Support rail 111 Through hole 112 Recess 113 Protrusion 2 Bridge rail 21 Ridge part 22 Linking part 221 Through hole 23 Elastic body 24 Bolt 25 Nut 3 Hose 4 Drum

Claims (3)

A hose drum trolley used in the shield method,
A plurality of divided carriages with support rails for moving the drum in the front-rear direction;
And at least a bridge rail provided between the opposed divided carriages,
The bridge rail is
A brim that spans between the upper surfaces of the support rails of the opposed split carriages,
Extending at least from one side edge of both side edges of the collar part, and having an interlocking part,
The interlocking portion is connected to the support rail side surface of one split carriage in an urging state via an elastic body, and is configured to be freely opened by contact with the support rail of the other split carriage due to the bending of the hose drum truck. ,
An end portion of the support rail and both end portions of the flange portion have a tapered shape in a plan view, and the hose drum carriage is characterized in that The plurality of divided carriages are connected in the order of a preceding carriage, one or more intermediate carriages, and a trailing carriage,
The hose drum carriage according to claim 1, wherein the intermediate carriage has a shorter overall length than the preceding carriage and the trailing carriage. A bridging rail constructed between the support rails of a plurality of divided carriages constituting a hose drum carriage used in the shield method,
A buttock having both ends tapered;
Extending from one side edge of both side edges of the collar portion downward, and consolidated to a support rail side surface of one split bogie via the elastic body, the other split trolley accompanying the bending of the hose drum carriage It is characterized by having at least an interlocking portion that can be freely opened by contact with the support rail of
Bridge rail.

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