JP6283387B2 - Track slab conveyor - Google Patents

Description

  The present invention relates to a track slab transfer device.

  Conventionally, there has been a track slab transport device for transporting a track slab installed on a track floor, in which two portal crane devices are provided on one truck traveling on a track (for example, Patent Document 1).

JP-A-2005-273312

However, the conventional apparatus has a problem that it is difficult to work easily and safely if there is a cant (tilt in the left-right direction) on the track on which the carriage travels in the track construction section and the forward / backward operation section.
As shown in FIG. 12, in the conventional apparatus, the portal crane apparatus 93 is swung so as to straddle the track slab S of the adjacent line portion K in a state where the carriage 91 is stopped on the track R having a cant. Then, it was necessary to increase the power for lifting the suspended load (slab slab), and in fact it was impossible to turn.
Also, as shown in FIG. 12, if the carriage 91 is stopped on the track R having a cant and the portal crane device 93 is turned so as to straddle the track slab S of the adjacent line portion K, There was a problem that the lower end 99d of the swing-side support column 99 of the portal crane apparatus 93 was in contact with the floor surface B and so on, so that turning was impossible. Even if the swing can be made, it is very difficult to properly install the swing side support column 99, and the track slab S is hung on the track R having a cant (gradient) of up to 8 degrees. It was also difficult to rampant.
Further, when the swing-side support column 99 is properly installed and the loading platform 91a of the carriage 91 is held horizontally in the left-right direction, the arm portion 94 of the gate-type crane device 93 and the like are connected to the tunnel wall and the tunnel internal structure. There is a possibility that the wheel 92A interferes with the rail member r, and among the left and right wheels 92, 92 of the carriage 91, the wheel 92A in the inclined lower position is lifted from the rail material r, so that there is a risk of derailment, so the work is actually performed. There was a problem that we couldn't.

  Accordingly, the present invention provides a track slab transfer device capable of easily, quickly and safely performing track slab laying work and recovery work in a track work section (curved work section) having a cant. With the goal.

In order to achieve the above object, a track slab transport device according to the present invention is provided with a load receiving table for placing a track slab on a track traveling carriage, and a crane for lifting the track slab on the load receiving table. The apparatus further comprises a horizontal holding means for holding the load receiving table horizontally in the left-right direction with respect to the traveling direction of the carriage in a tilted state where the carriage is stopped on a track having a cant . upper Symbol horizontal retaining means are provided corresponding to the left and right respectively of the load-receiving table, the load receiving an actuator for tilting the table to the left and right with respect to the carriage, tiltable and the load receiving table to the left and right with respect to the carriage connected detachably provided with pivotally means for pivotally and said horizontal retaining means, with the trolley tilted state, connecting the pivotally means of the inclined upper side With the condition, the pivotally means of the inclined lower side as tension the actuator to the separate state the inclined lower side, in which the load receiving table configured to hold a horizontal shape in the lateral direction.

The pivot axis of the crane device is disposed at the center of the left and right of the load receiving table.
In addition, the crane device includes a base fixed to the load receiving table, a support portion standing on the support base, an arm portion extending in a horizontal direction from the support portion and having a free end at the tip. , Which is a pivotable cantilever type.
Further, the crane device has a hoisting machine for lifting the track slab, and a hoisting frame body that can be raised and lowered by the hoisting machine is configured to be rotatable around a lifting center axis. is there.
Further, outriggers are mounted on each of the front, rear, left and right sides of the load receiving table.

  According to the present invention, it is possible to easily perform the laying (laying) operation and the recovery operation of the track slab even on the track having a cant. It is safe to sling the track slab in a horizontal place. There is no possibility of the crane device interfering with the tunnel wall surface or the structure inside the tunnel. Setup work and clean-up work can be done easily and quickly, reducing the overall construction time.

It is a principal part sectional front view of one embodiment of the present invention. It is a top view. It is a side view. It is a principal part sectional front view showing an example of an actuator. It is a principal part sectional front view showing an example of a pivot part. It is principal part sectional front view for demonstrating an effect | action. It is principal part sectional front view for demonstrating an effect | action. It is principal part sectional front view for demonstrating an effect | action. It is a side view which shows an example of a hanging frame. It is a top view which shows an example of a hanging frame. It is a front view which shows an example of a hanging frame. It is a front view for demonstrating the problem of a prior art. It is a top view for demonstrating the problem of a prior art.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
As shown in FIGS. 1 to 5, the track slab transport device according to the present invention is an old track slab S with respect to the adjacent line portion K provided on the side of the track R of the railway on which the carriage 1 travels. And a new track slab S for installing (installing) the track R (a pair of left and right rails r, r) on one track 1 for traveling on the track. One load receiving table 2 for placing the slab S, and one crane device 3 standing on the load receiving table 2 for lifting the track slabs S one by one are provided.

Furthermore, a horizontal holding means H for holding the load receiving table 2 horizontally in the left-right direction is provided.
This horizontal holding means H is provided corresponding to each of the left and right sides of the load receiving table 2, and an actuator 6 such as a hydraulic cylinder for tilting the table 2 left and right with respect to the carriage 1, and the table 2 with respect to the carriage 1. It is provided with pivoting means Z that can be tilted left and right and pivotally coupled and separated.

The actuators 6 are arranged corresponding to the left and right sides of the table 2 and arranged corresponding to the front and rear, respectively, for a total of four locations.
The pivot means Z includes a pivot 7 and a lock means 70. The pivotal support portions 7 are arranged in correspondence with the left and right sides of the table 2 and in correspondence with the front and rear, respectively, for a total of four locations.

As shown in FIG. 4, the left and right actuators 6C are pivotally connected to the left and right sides of the lower surface 2b of the table 2 so that the tip of the rod portion 62 can swing around the left and right longitudinal axis Lc. 61 is attached to the left and right sides of the vehicle body base 10.
The left and right actuator 6D is pivotally connected to the left and right other side of the lower surface 2b of the table 2 so that the tip of the rod portion 62 can swing around the left and right other longitudinal axis Ld. It is attached to the left and right other side. In addition, the barrel portion 61 of each actuator 6 is pivotally attached to the chassis base 10 so as to be swingable about a mounting axis Lg in the front-rear direction.

  The left and right one longitudinal axis Lc (first axis) and the other left and right longitudinal axis (second axis) Ld are on a plane E parallel to the load receiving reference surface (upper surface) 2a of the table 2. Contained and parallel to each other. In the reference state (see FIG. 4) in which the carriage 1 is stopped on the track R that is not inclined in the left-right direction and the front-rear direction, the one plane E is a horizontal plane, and the first and second axes Lc, Ld are front-rear. It is horizontal.

As shown in FIG. 5, one of the left and right pivots 7 </ b> C is provided on the left and right sides of the lower surface 2 b of the table 2 and on the left and right sides of the vehicle body base 10. A shaft support portion 71 having a notch (U-shaped) opening in the front view, in which the pivot shaft portion 72 is fixed and can be inserted and removed in the vertical direction, is provided.
The other left and right pivotal support portion 7D includes a pivotal support shaft portion 72 fixed on the left and right other side of the lower surface 2b of the table 2 along the front-rear direction, and a fixed support shaft portion fixed to the left and right other side of the vehicle body base 10. 72 is provided with an upper opening cutout-shaped shaft support portion 71 that can be inserted and removed in the vertical direction.
Then, the axis (pivot axis) L7 of the pivot shaft 72 of the left and right pivot 7C is disposed concentrically (upper) with the left and right longitudinal axis Lc.
The shaft center (pivot shaft center) L7 of the pivot shaft portion 72 of the left and right pivot portion 7D is disposed concentrically (upper) with the other left and right longitudinal axis Ld.

  The pivoting means Z includes a connected state in which the pivot shaft 72 is inserted so as to contact the U-shaped lower end inner edge 71g of the shaft support 71, and the pivot shaft 72 is connected to the shaft support 71. The table 2 is separated from the lower end inner edge 71g and can be switched to an upwardly separated state (see FIG. 7) by an operation of a lock means 70 described later.

  That is, the lock means 70 that forms the other main part of the pivot means Z is in a locked state in which the connection between the pivot shaft section 72 and the shaft support section 71 is held, and the pivot shaft section 72 is separated from the shaft support section 71. It is possible to switch between the unlocked state and the free state.

The locking means 70 includes a stopper member 78 that prevents the pivot shaft 72 at the inner edge 71g of the lower end from coming off upward, and the stopper member 78 is reciprocated in the axial direction so that the stopper member 78 is unlocked and unlocked. And a locking actuator 79 such as a hydraulic cylinder that switches to a position (a position that has escaped from the position above the pivot shaft 72).
The locking actuator 79 has a barrel portion fixed to the vehicle body base 10. The locking actuator 79 is a double rod type cylinder having one rod part corresponding to the left and right pivot part 7C and the other rod part corresponding to the other left and right pivot part 7D in the left and right direction. A common configuration is illustrated so as to correspond to adjacent pivot portions 7C and 7D. A single-out rod cylinder may be provided so as to correspond to each pivotal support 7, 7, 7, 7 (not shown).

  In the reference state (FIGS. 4 and 5) in which the carriage 1 is stopped on the track R that is not inclined in the front-rear direction and the left-right direction, the actuator 6 is in a shortened state and the pivoting means Z is in a connected state.

  As shown in FIGS. 6 to 8, for example, in the state where the carriage 1 is stopped on the track R having a cant that is inclined downward to the left and right (upwardly inclined to the left and right), the upper side of the inclination (FIG. The pivoting means Z on the left side in FIG. 8 is set in the connected state, and the pivoting means Z on the tilted lower side (right side in FIGS. 6 to 8, the right side actuator 6C) can be extended to hold the load receiving table 2 horizontally in the left-right direction. 6 to 8, it can be seen that the lock means 70 is in the locked state on the left side and is released on the right side.

Further, as shown in FIGS. 1 to 3 and 8, an outrigger 5 is mounted (provided) on the table 2.
The outrigger 5 includes a slide arm 51 that is movable in the left-right direction, and a fixing actuator 52 such as a hydraulic cylinder that is fixed orthogonally to the tip of the slide arm 51 and can be expanded and contracted in the vertical direction.
As shown in FIG. 2, the outriggers 5 are provided in a total of four locations in the vicinity of the front, rear, left and right corners of the table 2 in plan view. Moreover, it can protrude right and left outward.

  And since the outrigger 5 is provided not on the vehicle body base 10 of the carriage 1 but on the table 2, as shown in FIG. Since the slide arm 51 can be slid horizontally in the horizontal direction, the operation is stable. Also, the telescopic axis of the fixing actuator 52 can be held perpendicularly to the horizontal horizontal surface B (parallel to the table 2) in the vicinity of the track R to hold the carriage 1 stably. In the lifting operation of the slab S by the crane device 3 and the like, it is possible to reliably prevent wheel removal and rollover (overturn).

Further, as shown in FIGS. 1 to 3 and 8, a crane device 3 is erected on the table 2.
The crane device 3 includes a base 31 fixed to the load receiving reference surface 2a of the load receiving table 2, a support column 33 standing on the support 31 via a turning mechanism 32 such as a turntable, and a support column 33. Is a cantilever type having a crane body 30 (cantilever type) having an arm portion 34 extending in the horizontal direction and having a free end at the tip.
The pivot axis L3 of the crane apparatus 3 (the axis center of the column 33 of the crane main body 30) L3 is disposed at the left and right center position of the table 2. The pivot axis L3 is orthogonal to the load receiving reference surface 2a.

The crane body 30 is viewed in plan view as shown by a solid line in FIG. 2 by the control unit 39 having an arithmetic processing unit (CPU, sequencer, etc.), a storage unit (RAM, ROM), a relay circuit, etc. From the arm reference posture (storage posture) arranged along the front-rear direction, as shown by the two-dot chain line, the arm portion 34 can turn only to the left and right sides, and although not shown, it can turn only to the left and right sides. The state can be switched by electrical control. By controlling in this way, the crane main body 30 is prevented from swinging to the opposite side of the adjacent line portion K due to an erroneous operation and interfering with the tunnel wall or the like.
In addition, for example, when the work is performed after stopping on the track R on the up line and then working on the track R on the down line (when moving to the track R of the adjacent line portion K), the Y-character is used. At the merging track junction (without worrying about the left and right direction), change from the up line to the down line, and turn the crane body 30 in one of the above-described turnable states (turn to the up line side) by the electrical control described above. It is possible to respond by simply switching to a possible state), shortening work time and improving safety.
That is, in the conventional apparatus as shown in FIG. 13, when the arrow Y is the traveling direction, the conventional crane apparatus 93 is arranged in the right position eccentric from the left and right center position, and the arm portion 94 is long, Since the tip of the arm portion 94 and the swing side support column 99 are disposed on the left side of the crane device 93 adjacent to each other in the direction, the crane device 93 can turn only to the left from the arm reference posture (storage posture). for that reason. In order to transfer from the up line to the down line, it is necessary to carry out the transfer work in consideration of the left and right directions, which requires a lot of labor and time.

As shown in FIGS. 1, 3, and 8, the crane apparatus 3 includes a crane main body 30 and an electric traverse type attached to the arm portion 34 so as to be reciprocally movable along the arm portion 34 of the crane main body 30. And a main hoisting machine 35 such as an electric chain block.
Two main hoisting machines 35 are juxtaposed on the arm part 34 of the crane body 30.
Although not shown in the drawing, a total of four emergency standby hoisting machines of the chain motion transverse type are attached to the arm portion 34 of the crane body 30.

A hook frame 35a of the hoisting machine 35 and a hook part Sa provided on the track slab S are connected to each other, and a hanging frame body 8 that can be moved up and down by the hoisting machine 35 is provided.
Here, as shown in FIG. 3, a crane reference posture in which the arm portion 34 of the crane body 30 is disposed along the front-rear direction (the posture when placing the track slab S on the table 2, or the table 2 The posture of the suspension frame 8 suspended by the hoisting machine 35 is defined as the frame reference posture. 9 to 11 show the hanging frame body 8 in the frame body reference posture.

As shown in FIGS. 9 to 11, the suspension frame 8 includes a vertical arm member 81 disposed along the longitudinal direction (front-rear direction) of the track slab S, and orthogonal to the vertical arm member 81 in plan view. And a pair of front and rear lateral arm members 82, 82 disposed along the width direction (lateral direction) of the track slab S.
The horizontal arm member 82 is provided with hook portions 83 that are hooked to a hook portion Sa provided on the track slab S in a suspended manner at both left and right end portions 82d and 82d.

The vertical arm member 81 has a plurality of positioning through holes 81a and 81a arranged in the front-rear direction.
The horizontal arm members 82 are connected to the vertical arm member 81 by a bolt-nut connection between a bolt member 89 inserted through the positioning through holes 81a and 81a of the vertical arm member 81 and a nut member 88 screwed to the bolt member 89. Further, it is attached so as to be freely positionable in the front-rear direction.
That is, a desired positioning through hole 81a is selected from the plurality of positioning through holes 81a and 81a of the vertical arm member 81, and the horizontal arm member 82 is attached to the upper surface of the vertical arm member 81, whereby the horizontal arm member 82 is mounted. , 82 are adjustable in the front-rear direction, and track slabs S of various sizes (for example, a length of about 2600 to about 5950 mm) can be lifted.

Further, the suspension frame 8 includes a suspension member 86 having a hook 85 for hanging the hoisting machine 35 of the crane device 3.
As shown in FIG. 11, the suspension member 86 has a first hook 85C for hooking the hook portion 35a of one hoisting machine 35C and a second hook for hooking the hook portion 35a of the other hoisting machine 35D. And a tool 85D.

Then, a rotation mechanism (material) 87 having a thrust bearing structure is interposed between the suspension member 86 and the vertical arm member 81, so that the suspension member 86 and the vertical arm member 81 are relatively lifted. It is provided so as to be rotatable around the axis L8.
The lifting center axis L8 is disposed at the center position of the vertical arm member 81 in the plan view and at the center position between the first hook 85C and the second hook 85D, and is orthogonal to the upper surface of the track slab S. The center axis of the slab is coaxial with the center axis (top). That is, the suspension frame 8 lifts the track slab S so as to be rotatable around the center axis of the slab. Further, in the reference state (frame reference posture) of the carriage 1, the lifting central axis L8 is vertical.

  Therefore, as shown in FIG. 3, when the hoisting member 86 is lifted by the hoisting machine 35 and the crane body 30 is turned to the left or right as shown in FIG. 2, the lateral arm members 82 and 82 are attached. The vertical arm member 81 is rotated (turned) around the lifting center axis L8, and the track slab S suspended by the horizontal arm members 82 and 82 is lifted to the lifting center axis L8 (slab center The posture can be changed by rotating around the axis), and the suspended track slab S can be changed to an appropriate posture corresponding to the slab laying scheduled portion J.

Although not shown in the figure, two carriages 1 are connected to form a carriage group, and the crane apparatus 3 of the first carriage 1 of the two carriages 1 is used for collecting the old track slab S. The crane device 3 of the subsequent (rear) carriage 1 is used for laying a new track slab S. In other words, the replacement work (construction) of the track slab S such as the track slab laying work and the recovery work can be performed by the two trucks 1 (two crane devices 3 in total). In addition, it can be easily connected to the towing vehicle and towed.
For example, in the prior art as shown in FIG. 13, two carts 91 each having two portal crane devices 93 and 93 are connected to form a cart group with a total of four crane devices 93. Furthermore, the length of the arm portion 94 is set so that the swinging tip of the arm portion 94 of the crane device 93 reaches (strands) the left and right outer sides of the track slab S and the slab laying portion J of the adjacent line portion K. Therefore, as shown by the two-dot chain line, in the retracted state (non-working state), it jumps out of the carriage 91. Therefore, one vehicle is set before and after the carriage group (two carriages 91, 91). It was necessary to connect Toro (work carts) 98, 98, which was long and heavy, and was difficult to pull. Such a conventional problem is solved.

  In the present invention, the design can be changed, and the number of actuators 6, the number of pivots 7, and the number of outriggers 5 are arbitrary. The actuator 6 is not limited to a hydraulic cylinder, and may be a screw shaft or the like.

  As described above, the track slab transport device of the present invention is provided with the load receiving table 2 for placing the track slab S on the track running carriage 1 and further holding the load receiving table 2 horizontally in the left-right direction. Since the crane device 3 for lifting the track slab S is erected on the load receiving table 2, the track slab can be installed and collected even in the track construction section having a cant. Work can be done easily. For example, the crane apparatus 3 can be safely turned even on a track R having a cant having a maximum inclination of about 8 ° (maximum cant 200). The slinging operation of the slab S for track can be performed in a horizontal place and it is safe. There is no possibility that the crane device 3 interferes with the tunnel wall surface or the tunnel structure. Setup work and clean-up work can be done easily and quickly, reducing the overall construction time. Even if the distance between the up and down lines in the left-right direction changes, it can be easily handled.

  The horizontal holding means H is provided corresponding to each of the left and right sides of the load receiving table 2, and the actuator 6 that tilts the load receiving table 2 to the left and right with respect to the carriage 1, and the load receiving table 2 to the left and right with respect to the carriage 1. Pivoting means Z pivotably and detachably connected to each other, and in a tilted state where the carriage 1 stops on a track R having a cant, the pivoting means Z on the upper side of the slope is in a connected state. In addition, the load receiving table 2 is configured to be held horizontally in the left-right direction in the extended state of the actuator 6 on the lower side of the tilt with the pivoting means Z on the lower side of the tilt being in the separated state. And can be held horizontally in the horizontal direction. The load receiving table 2 can be swung quickly and safely. Manufacture is easy, and the entire device can be reduced in size and weight.

  In addition, since the pivot axis L3 of the crane device 3 is disposed at the center of the left and right of the load receiving table 2, the right and left wheel load ratio is improved, and there is no risk of overturning when traveling at the time of transportation. Can run. The crane apparatus 3 can be evenly turned to the left and right sides, and the track R can be changed and traveled without considering the left and right directions of the carriage 1. For example, in the conventional apparatus shown in FIGS. 12 and 13, since the crane apparatus 93 is greatly shifted from the left and right center position of the carriage 91, a counterweight (for example, 1400 kg) is mounted on the opposite side of the crane apparatus 93. The left and right wheel weight ratio when empty (when the slab is not installed) was suppressed to 85% (although this is a calculated value), but in the present invention, the right and left wheel weight ratio is not required even if a large amount of counterweights are installed. It is possible to achieve 90% or more.

  The crane device 3 includes a base 31 fixed to the load receiving table 2, a support column 33 standing on the support 31, and an arm unit 34 that extends in a horizontal direction from the support column 33 and has a free end. Therefore, the arm portion 34 of the crane apparatus 3 can be shortened. Therefore, the front and rear dimensions of the carriage 1 can be shortened, the entire apparatus can be miniaturized, and the detention space can be reduced. Or the space which can install other apparatuses and instruments, such as a hydraulic pressure supply apparatus and a power supply device, in the front-back position on the one trolley | bogie 1 is securable. Further, the space between the table 2 and the arm portion 34 can be widened, and the number of loaded slabs S for tracks can be increased. Setup work and clean-up work can be greatly reduced, and the entire work (construction) time can be shortened. For example, in the prior art shown in FIG. 13, a pair of front and rear portal crane devices 93, 93 is provided on one carriage 91, and the swinging side column 99 of the portal crane device 93 is installed, and then the adjacent swinging side is installed. Since the support columns 99 are connected by the connecting rod member 95 along the front-rear direction, there is a problem that it takes time and labor for setup and cleaning work, but this problem can be solved.

  Moreover, the crane apparatus 3 has a hoisting machine 35 for lifting the track slab S, and a hoisting frame body 8 that can be raised and lowered by the hoisting machine 35 is configured to be rotatable around a lifting center axis L8. Therefore, the loading / unloading position of the track slab S can be easily finely adjusted by turning the crane body 30, reciprocating movement of the hoisting machine 35 (transverse), and rotating the suspension frame 8. Moreover, it is not necessary to stop the cart 1 with respect to the slab laying scheduled portion J or the track slab S to be collected, and it is possible to work quickly.

  Since the outriggers 5, 5, 5, and 5 are mounted on the front, rear, left, and right sides of the load receiving table 2, the outrigger 5 can be easily operated and grounded. The posture of the carriage 1 is stabilized, derailment can be prevented, and work can be performed safely.

1 Cart 2 Loading table 3 Crane device 5 Outrigger 6 Actuator 8 Suspension frame
31 base
33 Prop
34 Arm
35 Hoisting machine H Horizontal holding means L3 Rotating axis L8 Lifting center axis R Track S Slab slab Z Linking means

Claims (5)

A load receiving table (2) for placing the track slab (S) on the track traveling carriage (1) is provided, and a crane device (3 for lifting the track slab (S) on the load receiving table (2) (3) In addition, the load receiving table (2) is horizontally held in the left-right direction with respect to the traveling direction of the carriage while the carriage (1) stops on the track (R) having a cant. Horizontal holding means (H) for
The horizontal holding means (H) are provided corresponding to the left and right sides of the load receiving table (2), respectively, and an actuator (6) for tilting the load receiving table (2) left and right with respect to the carriage (1); Pivoting means (Z) pivoting the load receiving table (2) with respect to the carriage (1) so that it can be tilted left and right and connected and separated;
The horizontal holding means (H) is configured such that the pivoting means (Z) on the upper side of the tilt is in a connected state and the pivoting means (Z) on the lower side of the tilt is in a separated state in the tilted state of the carriage. An orbital slab transfer device configured to hold the load receiving table (2) horizontally in the left-right direction with the lower actuator (6) in an extended state . The slab transfer device for a track according to claim 1, wherein a pivot axis (L3) of the crane device (3) is disposed at a lateral center position of the load receiving table (2) . The crane device (3) includes a base (31) fixed to the load receiving table (2), a support (33) standing on the support (31), and the support (33). The slab transport device for a track according to claim 1 or 2, which is a pivotable cantilever type having an arm portion (34) extending in a horizontal direction from the arm and having a free end . The crane device (3) has a hoisting machine (35) for lifting the track slab (S),
The track slab transfer device according to claim 1, 2 or 3 , wherein the suspension frame (8) that can be raised and lowered by the hoisting machine (35) is configured to be rotatable about a lifting center axis (L8). . The track slab transfer device according to claim 1, 2, 3, or 4 , wherein outriggers (5), (5), (5), and (5) are mounted on the front, rear, left, and right sides of the load receiving table (2) .

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