JP2006248488A - Trailer truck for railway work and method for transferring trailer truck onto track - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a large-sized railway working vehicle body in such a way that even if a large-sized railway adjustment device or a ballastway working device is applied, it can be mounted on the large-sized railway working vehicle and develop a railway working trailer truck enabled to be easily transferred onto the railways even if the vehicle body has a larger entire length than a width of a railroad crossing. <P>SOLUTION: This trailer truck comprises a trailer truck 1 having track maintenance equipment and the like mounted thereon, drawn by a trailer truck head 2 and capable of running on a road with road running wheels 11, lifts 4f, 4a substantially ascended or descended at the front and rear ends of vehicle body of this trailer truck 1 from the vehicle body bottom surface toward the ground surface, bogies 3, 3 rotatably supported at each of the lower ends of the lifts 4f, 4a around their vertical axes, lift driving devices 46f, 46a having a biasing force capable of supporting a self-weight of the trailer truck when the lifts 4f, 4a descend and supporting legs 5 temporarily supporting the front end of the trailer truck 1 at a higher ground height than a connecting height with the trailer truck head 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a track work trailer and a transfer method thereof to a track, and more particularly, to a trailer configured to be able to travel on both a road and a track and a transfer method of the trailer between the road and the track.

2. Description of the Related Art Conventionally, a track work vehicle generally referred to as a track-rail vehicle, which is provided with a rubber tire running wheel for a road and an iron running wheel for a track in one vehicle body, is widely known (Patent Documents 1 and 2). .

    When the above-mentioned track work vehicle enters the track from the road or shifts from the track to the road, a crossing that is an intersection of the road and the track is often used.

  That is, when moving the track work vehicle from the road to the track, the direction of the track work vehicle is changed along the track by operating the steering wheel on the railroad crossing or by a turntable equipped on the vehicle body, and then the iron traveling wheels. Projecting downward and mounting on the track, the support of the vehicle body was switched from the rubber tire wheel to the iron traveling wheel, and then the vehicle body was driven along the track.

Contrary to the above, when moving the track working vehicle that was traveling on the track to the road, the vehicle support is switched to the rubber tire traveling wheel by stopping the track working vehicle at the crossing and pulling the iron traveling wheel upward, Thereafter, the vehicle body is directed toward the road by a steering wheel operation or a turntable.
Japanese Patent Laid-Open No. 11-209087 JP-A-6-305313

    However, in order to move from the road to the track or from the track to the road using the railroad crossing in this way, the vehicle body can be turned at a right angle by operating the steering wheel within the railroad crossing, or by a turntable equipped on the vehicle body. It is necessary to be able to rotate the car body at the level crossing.

    Therefore, the length of the longitudinal axis of the vehicle body must be within the width of the crossing. For this reason, the size of the track work vehicle, in particular, the length of the front and rear shafts, can be applied only to a relatively short vehicle that falls within the crossing width.

    Therefore, there is a problem that the scale and type of track work machines that can be mounted are limited.

    In order to solve the above problem, the present invention enlarges the body of a track work vehicle so that even a large track adjustment device or a roadbed work device can be loaded, and has a total length larger than the width of a crossing. An object of the present invention is to develop an orbital work trailer that can be easily transferred onto a track even if it is a vehicle body, and a transfer method to the track.

    In order to achieve the above object, a track work trailer according to the present invention includes a trailer that is towed by a trailer head and can travel on a road with rubber tire wheels, and a front and rear end portions of the vehicle body from the bottom surface of the vehicle body toward the ground surface. A lifting part that substantially moves up and down, a bogie that is rotatably supported around a vertical axis with respect to the trailer at each lower end of the lifting part, and a biasing force that can support the weight of the trailer when the lifting part is lowered And a lifting / lowering drive device, and a support leg that temporarily supports the front end of the trailer at a surface height higher than a connection height with the trailer head.

    The elevating part is composed of a rotating link connected at one end to a frame of a trailer and a base connected to the other end of the link, and the bogie is supported on the base so as to be rotatable around a vertical axis. It can be configured. Further, in this case, at least one of the links provided in the front and rear portions of the trailer, a link rod having one end pivotally supported by the body frame and the other end pivotally supporting the base, and an intermediate portion of the link rod And a cylinder piston device interposed between the vehicle body frame, and the link rod is driven to rotate about the vehicle body side shaft support portion by the expansion and contraction operation of the cylinder piston device. May move up and down in a state where the bogie is suspended and supported.

    Further, at least one of the rotating links provided in the front and rear portions of the trailer, a link rod having one end pivotally supported by the vehicle body frame and the other end pivotally supporting the base, an intermediate portion of the link rod, A link interposed between the body frame and a link that can be bent at an intermediate portion formed by connecting two rods in series, and an intermediate connection contact of the bendable link and the body frame. You may comprise from the piston cylinder apparatus connected between.

    It is desirable that the front bogie of the trailer is supported by the former link rod and the rear bogie is supported by the latter link rod.

    Furthermore, it is preferable that the bogie on the rear end side of the trailer among the bogies is fixed so as to face in a direction perpendicular to the traveling direction of the trailer.

    It is desirable that the bogie on the trailer front end side of the bogie is lifted upward from the floor surface of the trailer.

A support leg for temporarily supporting the trailer, a leg member in which the upper ends of two parallel columnar members whose lower ends are in contact with the ground surface are integrally connected in a horizontal direction with a girder, and two places on the upper surface of the girder And a piston cylinder device inserted between the widthwise side edge portions of the trailer and a control device for independently controlling the expansion and contraction operation of each piston cylinder device.
The track work trailer may be provided with a power unit for driving the wheels of the bogie truck and a driver's seat for operating the power unit. The power unit can be provided with a hydraulic pump driven by an engine, a hydraulic motor, and a hydraulic control device, and in addition to a generator for generating the power unit by the engine, an electric motor, And an electric control device.

    Moreover, you may mount arbitrary apparatuses, such as a track adjustment apparatus and a roadbed work apparatus, on the said trailer.

    In addition, the method of transferring the track work trailer to the track is such that the trailer head is operated so that the bogie on the rear side of the trailer is positioned directly above the railroad crossing, and then the rear bogie is lowered. Then, the rear bogie is pushed and urged downward, the rear part of the trailer is lifted to lift the rubber tire wheel from the ground surface, and the rear part of the trailer is supported on the rail by the bogie. Next, the rear bogie is moved along the track, and at the same time, the trailer head is moved backward according to the moving speed, the front / rear axis of the trailer is changed to a direction along the track, and then the supporting leg is lowered. Temporarily support the trailer, move the trailer head away from the trailer, Lowering the front side of the bogies mounted on rail, the trailer travels capable transferred on line by the said rear side bogie, composed of working process then pulling the support legs.

    In this case, as the supporting legs, the upper ends of the two parallel pillar members whose lower ends are in contact with the ground surface are leg members formed by connecting them in a horizontal direction with a girder, and the trailer is the rear bogie. When temporarily supported on the track with the carriage, the trailer can be adjusted and moved in the left-right direction with respect to the track around the support axis of the rear bogie by the mutual expansion and contraction of the piston cylinder device of the support leg, You may make it adjust the left-right position with respect to the track | line of a front side bogie truck.

    Moreover, the traveling movement along the track of the rear side bogie trolley mounted on the track can also be performed by the self-running of the rear side bogie trolley by a power unit.

    Since the present invention is configured as described above, the rear bogie is first placed on the track, and then the rear body of the trailer travels on the track along the track, and at the same time, the trailer head is operated to move the front of the vehicle body. If the front of the trailer comes on the railroad crossing near the railroad crossing, the trailer head is temporarily supported by the support legs, the trailer head is cut off, and the front bogie is lowered and placed on the railroad. Even a trailer having a longitudinal axis length can be easily transferred onto the track.

  In addition, since the vehicle body is large, a large device can be mounted, and even a single trailer can perform a wide variety of track operations that were difficult in the past.

    As a device for raising and lowering the bogie of the track work trailer from the bottom of the vehicle body, the structure of the link becomes very simple by using a rotation link and a drive device that urges the rotation link. The strength can be increased and the manufacturing cost can be reduced.

    In addition, when the drive device that urges the rotation is a piston cylinder device, a large drive force can be easily obtained.

  If a drive device is provided on the bogie truck so that it can run on the track, a towing vehicle or the like becomes unnecessary.

  If fine adjustment in the left-right direction with respect to the track at the front part of the trailer at the railroad crossing is performed by the operation of the support leg, the work becomes easier compared with the case of performing the forward / backward movement adjustment of the trailer head. In this case, when a rail leveling unit for rail correction is mounted on the trailer, it can be used as a support leg.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a side view of a track work trailer according to an embodiment of the present invention, and FIG. 2 is a plan view of the same.

  In FIG. 1, a trailer 1 travels on a road 10 by being pulled by a trailer head 2.

  The trailer head 2 includes a truck engine (eg, a diesel engine, not shown) and a driver's seat 21, a steering wheel 22, and a driving wheel 23 that are originally provided in the trailer head. )) It has a coupling device 25 such as a coupler for locking 1.

  The trailer 1 has a pin (not shown) that engages with the coupling device 25 of the trailer head 2 at the front end portion, and has a rubber tire wheel (road traveling wheel) 11 that supports the vehicle body when traveling on the road.

  Inside the trailer 1, bogies 3 and 3 are mounted on the front and rear portions. As shown in FIGS. 1 to 3, the bogies 3 and 3 support two axles 32 and 33 with a predetermined parallel interval on a frame 31, and each axle has an iron running wheel (track running wheel). 34 and 35 are attached.

  In the illustrated example, the bogies 3 and 3 are provided with a driving device 36 such as a hydraulic motor and a braking device 37 such as a hydraulic disc brake so that the vehicle can safely run on its own.

  The bogies 3 and 3 provided before and after the trailer 1 are supported by the elevating parts 4f and 4a so as to be movable up and down from the bottom surface of the trailer 1 to the track 8.

  The raising / lowering part 4f provided in the front part of the trailer 1 is made into the structure shown in FIG. 4, FIG. That is, one end of a pair of link rods 42f and 42f arranged in parallel is pivotally supported by shafts 41f and 41f on the same axis provided on the vehicle body frame, and between the other ends of the link rods 42f and 42f. A support rod 43f is installed. The base 45f is supported by the support rod 43f in a state of being suspended via the suspension bracket 44f.

  A bogie bogie 3 is rotatably attached to the base 45f as indicated by an arrow around a vertical axis.

  Extending and retracting devices 46f and 46f made of piston cylinders are connected to the intermediate portions of the link rods 42f and 42f in correspondence with the link rods 42f and 42f. The other ends of the telescopic devices 46f and 46f are pivotally supported by support shafts 12f and 12f provided on the frame of the trailer 1 so that the link rods 42f and 42f are rotated around the shafts 41f and 41f by extending and contracting. Has been.

  The rotation range of the link rods 42f and 42f is such that the upper limit is a position where the bogie 3 is supported above the floor surface 13 of the trailer 1 as shown by the dotted line in FIG. On the other hand, it is a position where the posture is almost upright.

  The reason why the upper limit is set above the floor is to prevent the bogie 3 from interfering with the connecting device 25. The lower limit is set to a vertical posture in order to stably support the load of the trailer 1.

  Next, the raising / lowering part 4a provided in the rear part of the trailer 1 is made into the structure shown in FIG.6 and FIG.7. That is, like the front lifting unit, a pair of link rods 42a and 42a arranged in parallel is pivotally supported on shafts 41a and 41a on the same axis provided at one end of the frame of the trailer 1. . A support rod 43a is installed between the other ends of the link rods 42a and 42a. A base 45a is suspended and supported by the support rod 43a via a suspension bracket 44a. A bogie 3 is attached to the base 45a so as to be rotatable around the vertical axis as indicated by an arrow. When the bogie 3 is pulled up, the bogie 3 is fixed in a posture that substantially intersects with the longitudinal axis of the trailer 1 as shown in the figure.

    A bendable link 48 formed by connecting two rods 47 and 47 in series is connected to an intermediate portion of the link rods 42a and 42a. The other ends of the links 48 are supported on a shaft 49 provided on the frame of the trailer 1. A connecting shaft 47q is installed between the intermediate connection contacts 47p, 47p of the bendable link 48. An expansion / contraction device 46a composed of a piston cylinder is connected to the connecting shaft 47q as a lifting drive device. The other end of the telescopic device 46 a is pivotally supported on a shaft 13 provided on the frame of the trailer 1. The drive direction of the expansion / contraction device 46a made of a piston cylinder is substantially perpendicular to the line A connecting both ends of the bendable link 48, and the links 47, 47 and the link rod 42a constitute a toggle mechanism. .

    At the front of the vehicle body of the trailer 1 is provided a support leg 5 that temporarily supports the front of the trailer at an installation height H (FIG. 1: generally 1190 mm) of a coupling device 25 such as a coupler provided on the trailer and the trailer head. It is provided to be extendable toward the surface of the road 10. The trailer head 2 can be connected to and released from the trailer head 2 by supporting the front of the vehicle body.

  The support legs 5 have a telescopic structure and are provided on both sides of the front part of the body of the trailer 1.

  Inside the trailer 1, an engine, a hydraulic pump unit 61, a hydraulic control device 62, and a hydraulic tank 63 are mounted as a power source 6, including piston cylinder devices 46 a and 46 f as lifting drive devices, and bogies 3 and 3. The mounted hydraulic drive unit 34 and the like are driven. These control devices can be provided inside or outside the trailer, or can be provided as a remote control device from outside the trailer.

  As shown in FIG. 8 as the structure of the support leg, a leg member 53 is formed by integrally connecting the upper ends of two parallel columnar members 51, 51 whose lower ends are in contact with the ground surface with a girder 52 in the horizontal direction. The piston cylinder devices 54 and 54 are inserted between the two places on the upper surface of the beam 52 and the width direction side edge portion of the trailer 1, respectively, and the expansion and contraction operations of the piston cylinder devices 54 and 54 are independently performed. By controlling, it is possible to lift the front part of the vehicle body of the trailer 1 or to finely adjust the horizontal movement as shown by the dotted line.

  As shown in FIGS. 9 and 10, the trailer 1 is loaded with various track maintenance devices such as a track adjusting device 64 such as a rail leveling unit and a roadbed building device 65 such as a tie tamper. It is designed to be a kind of power source.

  9 and 10, the rail leveling unit shown as an example of the track adjusting device 64 has a function of correcting the height and the path (lateral deviation, straight line / curve deviation) of the rail (the rail set on the sleeper) ( It has a function of orbit adjustment and orbit correction. Therefore, this device 64 has an arm 64a for gripping the rail in order to perform the above operation. Although detailed description of the structure of the rail leveling unit itself is omitted, the arm 64a of the rail leveling unit has grippers 64g and 64g for gripping the rail 9 at the tip as shown in the schematic front view of FIG. The grippers 64g and 64g are connected to the base frame 64e by piston cylinder devices 64c and 64c and a link rod 64d that does not expand and contract. Piston cylinder devices 64j, 64k, and 64m are connected to the base frame 64e at three points on both the widthwise side and the center of the trailer 1, and the base frame 64e can move in the vertical and horizontal directions as indicated by the chain line. Has been. The other end of each of the three piston cylinder devices 64j, 64k, 64m is connected to the slider 64b, and the entire device 64 is indicated by an arrow along the slide frame 16 of the trailer 1 as indicated by an imaginary line in FIG. It can be moved. As a result, the line 9 can be grasped at an appropriate position, for example, by avoiding the joint of the line 9.

  That is, the arm 64a of the rail leveling device 64 has a function of gripping the rail by expansion and contraction and shifting it in the vertical and horizontal directions. The arm 64a can also be used as the support leg 5 by utilizing the function of extending and contracting the arm 64a in the vertical direction.

  As the roadbed construction device 65, a tie tamper, a multi tie tamper, or the like is mounted. The illustrated example shows a tie tamper. These operations are performed in the cockpit 66. In the figure, reference numeral 15 denotes a driver seat when the trailer 1 is moved forward on the track. When the trailer 1 is moved backward, the operator sits back on the cockpit 66 and operates. Also, a monitoring device can be installed in the driver's seat 15 or the like to monitor the work status.

  As an example of the configuration of the power source, the case of a hydraulic device is shown. However, an electric power generation unit (not shown) driven by the engine is used instead of the engine or the hydraulic pump unit 61, and an electric control device is used instead of the hydraulic control device 62. (Not shown) can be provided, and the drive device of the bogie can be an electric motor so that it can be electrically driven.

  Next, a method for shifting the trailer 1 to a road or a track will be described.

  A trailer 1 equipped with a track adjusting device such as a rail leveling unit and a roadbed construction device such as a tie tamper travels on a road 10 by being pulled by a trailer head 2 to a destination. When reaching the railroad crossing 8 where the track near the destination intersects with the road, the trailer head 2 is steered so that the rear part of the trailer 1 is positioned on the railroad rail 9 of the railroad crossing 8 as shown in FIG.

  When the steel wheels 34 and 35 of the rear bogie 3 are correctly positioned on the track 9, the trailer 1 is stopped.

  Next, as shown in FIG. 13, the piston cylinder 46a of the elevating part 4a is extended, the link rods 42a, 42a (FIG. 6) are rotated downward, and the rear bogie 3 is lowered. The rear bogie 3 is lowered while being suspended from the base 45a, and gets on the track 9 soon.

  At this time, when the bogie 3 is fixed at a right angle with respect to the traveling direction, for example, if it is set in the direction in which the track 9 extends, transfer to the track 9 can be performed quickly. When the direction of the bogie 3 is finely adjusted when transferring to the track 9, the bogie 3 can be rotated in the horizontal direction manually with respect to the base 45. Alternatively, a drive unit such as a hydraulic motor may be provided on the base 45 or the bogie 3 and the bogie 3 may be rotated in the horizontal direction by a control device such as a remote control device.

  Further, when the piston cylinder 46a is extended, the bendable link 47 and the link rod 42a form a toggle mechanism. Therefore, when the links 47 and 47 are in a straight line, the link rod 42a is pushed down with a strong force.

  As a result, the rear portion of the trailer 1 is relatively lifted, and the tire traveling wheels 11 are lifted from the road surface as shown in FIG. The trailer 1 can also be equipped with a lift device for the tire traveling wheels 11. The lifting distance of the rear part of the trailer can be reduced by lifting the tire traveling wheel 11 by the lift device. As the lift device, for example, a lift accelerator air suspension for a biaxial rear wheel trailer can be used.

  Next, as shown in FIG. 14, the rear part of the trailer 1 is moved in the arrow X direction along the track 9 by the rear bogie 3, and the trailer head 2 is also moved backward in the arrow Y direction at the same time.

  This movement is self-propelled by a driving source such as a hydraulic motor attached to the bogie 3, but it is also possible to place a mobile vehicle (not shown) on the track 9 in advance and move it by towing.

  The trailer 1 draws a trajectory as shown by a virtual line in FIG. 14 and gradually changes its posture to the track 9. At this time, the side wall of the trailer 1 moves so as to substantially follow the circle in contact with the road 10 and the track 9. Therefore, even the trailer 1 having a longitudinal axis length longer than the crossing width B can be transferred onto the track 9.

  During this movement, the bogie 3 is supported so as to be rotatable about the vertical axis with respect to the base 45, so that it travels stably on the track 9 even if the direction of the trailer 1 changes.

  When the axis of the trailer 1 finally matches the direction in which the track 9 extends, the trailer 1 stops and the support leg 5 or the leg member 53 is lowered. Accordingly, the front portion of the trailer 1 is temporarily supported at a height that can be released from the coupling device 25 such as a coupler. In addition, when the track adjusting device 64 is mounted as shown in FIGS. 9 and 10, the vehicle body front portion of the trailer 1 can be temporarily supported by extending the arm 64a.

  Then, the coupling device 25 such as a coupler is released, and the trailer head 2 is moved forward and separated from the trailer 1 as shown in FIG. At this time, as shown in FIG. 16, the front part of the trailer 1 is supported by the support leg 5, the leg member 53 or the arm 64 a of the track adjusting device 64, and the rear part is supported by the bogie 3.

  Then, as shown in FIG. 17, the piston cylinder 46f of the front lifting drive device is extended to rotate the link rod 42f (FIGS. 4 and 5) downward. The front bogie 3 is lowered while being suspended from the base 45f and gets on the track 9 soon.

  Since the front part of the trailer 1 is previously supported by the support leg 5, the leg member 53, or the arm 64a, such a strong force is not required until the front bogie 3 is lowered and the link rod 42f is brought into an upright posture. .

  When the position of the traveling wheel of the bogie 3 is shifted in the left-right direction with respect to the track 9, the vehicle body front portion of the trailer 1 is temporarily supported by the girder member 53, or is temporarily supported by the arm 64a. In this case, fine adjustment in the left-right direction can be performed using the expansion / contraction operation of the piston cylinder devices 54, 54 or the function of the arm 64a of the rail leveling unit.

  If the front bogie 3 is placed on the track 9 of the crossing 8 as shown in FIG. 18, the support leg 5, the leg member 53, or the arm 64a is retracted.

  Accordingly, the trailer 1 can subsequently travel along the track 9. Since the front and rear bogies 3 and 3 are pivotally attached to the bases 45f and 45a around the vertical axis, they can travel without difficulty even on curved lines.

  And it drives to the construction site by driving the drive device 6, and performs necessary construction using the power source of the drive device.

  When moving from the track 9 to the road, the reverse operation is performed.

  That is, the trailer 1 is stopped so that the front portion is positioned on the railroad crossing 8. Next, the support leg 5, the leg member 53, or the arm 64a is lowered to temporarily support the front part of the vehicle body, and the front bogie 3 is retracted. The bogie 3 is pulled up into the trailer 1 so as not to interfere with the trailer head coupling device 25.

  Next, the trailer head 2 is steered in the direction opposite to that shown in FIG.

  If the trailer 1 is connected by a connecting device 25 such as a coupler, the rear bogie 3 still located on the track 9 is driven in the direction opposite to the arrow X direction shown in FIG. At the same time, the trailer head 2 is similarly advanced to pull out the trailer 1 toward the road. At this time, the bogie 3 is supported on the base 45 so as to be rotatable about the vertical axis, so that the bogie 3 travels stably on the track 9 even if the direction of the trailer 1 changes.

  And if the front-rear axis of the trailer 1 is along the road 10, the rear bogie 3 is pulled up. As the rear bogie 3 is raised, the rear part of the trailer 1 is lowered and the rubber tire wheel 11 is grounded. Thereafter, the rubber tire wheel supports the vehicle weight. At this time, the posture of the bogie 3 is substantially perpendicular to the body axis of the trailer 1. If it is fixed as it is, the next line transfer can be easily performed.

  Therefore, the trailer 1 is completely ready to run on the road, and thereafter it is pulled by the trailer head 2 and travels on the road.

  As described above, the trailer for track work according to the present invention can be easily performed even in a place where the transition from the road to the track or vice versa is narrow due to the crossing. And since the track work trailer can be very large, it can be easily installed with large equipment that could not be installed with conventional track and land vehicles, and can also be equipped with several types of equipment, making track maintenance easy. Has the effect of becoming.

  In addition, the trailer itself can be completed by installing necessary equipment using a conventional trailer, so that it can be easily manufactured.

It is a side view of a track work trailer. It is a top view of the trailer for track work. It is a top view of a bogie truck. It is a perspective view of a bogie truck, a raising / lowering part, and a raising / lowering apparatus. It is explanatory drawing of raising / lowering operation | movement of a bogie truck. It is a perspective view of other examples of a bogie truck, a raising / lowering part, and a raising / lowering device. It is raising / lowering explanatory drawing of the bogie truck shown in FIG. It is a front view of the example of composition of a support leg. It is a top view of a track work trailer showing a state in which a track adjusting device such as a rail leveling unit and a roadbed construction device such as a tie tamper are mounted. It is an explanation side view of a track work trailer showing a state in which a track adjusting device such as a rail leveling unit and a roadbed construction device such as a tie tamper are mounted. It is a schematic front view explaining the effect | action of the rail leveling unit as a track | orbit adjustment apparatus. It is an explanatory top view of the transfer method from the road of a track work trailer to a track. It is explanatory side view of the transfer method of the track work trailer from the road to a track. It is locus | trajectory explanatory drawing at the time of transferring a track work trailer from a road to a track. It is explanatory side view when a trailer for track work is located on a railroad track. It is explanatory drawing which shows the state which supported the front part of the track work trailer with the support leg. It is explanatory side view which shows the descent | fall state of the front bogie of a track work trailer. It is explanatory side view which shows the state which transferred the track work trailer on the track.

Explanation of symbols

1 ... Trailer for track work (trailer)
2 ... Trailer head 3 ... Bogie truck 4f ... Front lifting device 4a ... Rear lifting device 5 ... Supporting leg 6 ... Power source 8 ... Railroad crossing 9 ... Track 10 ... Road 11 ... Rubber tire wheel 15 ... Driver's seat on trailer track 24 ... Frame 25 ... Connecting device 31 ... Bogie bogie frame 32 ... Axle 33 ... Axle 34 ... Iron running wheel 35 ... Iron running wheel 36 ... Driving device such as hydraulic motor 37 ... Braking device such as hydraulic disc brake 41f ... Front Shaft 42f ... front link rod 43f ... front support rod 44f ... front suspension bracket 45f ... front base 46f ... front telescopic device 41a made up of piston cylinder as elevating drive device 41a ... the same provided on the trailer frame Rear axis on axis 42a ... Rear link rod 43a ... Rear support rod 44a ... Rear suspension Bracket 45a ... rear base 46a ... rear telescopic device comprising a piston cylinder as a lifting drive device 48 ... bendable link 49 ... shaft provided on trailer frame 51 ... two parallel columnar members 52 ... girder 53 ... leg Member 54 ... Piston cylinder device 61 ... Engine or hydraulic pump unit 62 ... Hydraulic control device 63 ... Hydraulic tank 64 ... Track adjusting device such as rail leveling unit 64a ... Arm 65 ... Roadbed construction device such as tie tamper

Claims (10)

A trailer equipped with track maintenance equipment that is towed by a trailer head and can run on the road with road wheels, and at the front and rear ends of the trailer body, the trailer is substantially lifted from the bottom of the vehicle body to the ground surface. And a bogie that is equipped with a traveling wheel for a track and is rotatably supported around a vertical axis at each lower end of the lifting unit, and a biasing force that can support the weight of the trailer when the lifting unit is lowered. A trailer for orbital work comprising: an elevating drive device provided; and a support leg that temporarily supports the front end of the trailer at a surface height higher than a connection height of the trailer head. The elevating part is composed of a rotation link having one end connected to the frame of the trailer and a base connected to the other end of the rotation link, and the elevating drive device urges the rotation link to rotate. The trailer for track work according to claim 1, wherein the bogie is connected to the base so as to be rotatable about a vertical axis. At least one of the rotating links provided in the front and rear portions of the trailer is a link rod having one end pivotally supported by the vehicle body frame and the other end pivotally supporting the base, and an intermediate portion of the link rod and the link rod A cylinder piston device is connected to the vehicle body frame, and the link rod is rotated around the vehicle body side shaft support portion by the expansion and contraction operation of the cylinder piston device, and the base suspends the bogie by this rotation. The trailer for track work according to claim 2, wherein the trailer is moved up and down in a supported state. At least one of the rotating links provided in the front and rear portions of the trailer has a link rod having one end pivotally supported by the vehicle body frame and the other end pivotally supporting the base, an intermediate portion of the link rod, and the vehicle body A link inserted between the frame and a link that can be bent at an intermediate portion formed by connecting two rods in series, and between the intermediate connection contact of the bendable link and the vehicle body frame. The track work trailer according to claim 1, 2, or 3, comprising a connected piston cylinder device. The trailer for track work according to claim 1 or 2, wherein the front bogie of the trailer is supported by the rotating link according to claim 3, and the rear bogie is supported by the rotating link according to claim 4. The support legs for temporarily supporting the trailer are a leg member obtained by integrally connecting the upper ends of two parallel columnar members whose lower ends are in contact with the ground surface with a girder in a horizontal direction, and two places on the upper surface of the girder And a control device for independently controlling the expansion and contraction of each piston cylinder device. Trailer for orbital work described in Crab. The trailer for track work in any one of Claims 1-6 provided with the motive power apparatus which drives the wheel of the said bogie truck, and the driver's seat for operating this motive power apparatus. A method for transferring a track work trailer according to any one of claims 1 to 7 to a track, wherein the trailer head is steered in a direction crossing the track so that the bogie on the rear side of the trailer is crossed immediately above the track. Then, the rear bogie is lowered and placed on the railroad crossing line, and the rear bogie is pushed downward to lift the rear part of the trailer to remove the rubber tire wheel from the ground surface. Float, support the rear part of the trailer on the track with a bogie, and then move the rear bogie on the track, and at the same time move the trailer head backward according to the moving speed, the front and rear axis of the trailer Is changed to a direction along the track, and the support leg is lowered to temporarily support the trailer. Is moved away from the trailer, then the front bogie is lowered and placed on the rail, and the trailer is transferred to the track with the rear bogie so that the support leg is moved. A method for transferring a track work trailer to a track with a work process for lifting. The support leg is the support leg according to claim 6, and when the trailer is temporarily supported on the track with the rear-side bogie, the trailer is moved by mutual expansion and contraction of the piston cylinder device of the support leg. The track of the trailer for track work according to claim 8, comprising a work step of adjusting and moving the left and right positions with respect to the track of the front-side bogie truck by adjusting and moving in the left-right direction with respect to the track about the support shaft of the rear bogie truck. Transfer method to. The track work according to claim 8 or 9, wherein traveling movement along the track of the rear-side bogie truck placed on the track is performed by the self-propelling of the rear-side bogie truck by the power unit according to claim 7. To transfer the trailer to the track.

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