JP4601483B2 - Track work vehicle and derailment recovery method - Google Patents

Description

  The present invention relates to a track work vehicle and a method for recovering the derailment thereof.

  2. Description of the Related Art Conventionally, a track work vehicle generally referred to as a track-rail vehicle that includes a rubber tire wheel for road travel and an iron travel wheel for track travel is widely known (Patent Documents 1 and 2).

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

  That is, the track work vehicle travels on the road until the railroad crossing nearest to the track construction site, and when it reaches the railroad crossing, the direction is changed to follow the track by a handle operation or a turntable mounted on the vehicle body, and then made of iron. The running wheel is moved downward and protrudes downward to be placed on the track. After that, the vehicle runs on the track track to the track work site.

  By the way, the track on which such a work vehicle is engaged in work often has an incomplete track track. For this reason, it is not uncommon for track work vehicles to derail during work.

Conventionally, in such a case, when the vehicle body is jacked up and restored to the track, (Patent Document 3), a guide frame is submerged under the vehicle body, and the hull supporting the vehicle body is slid on the guide frame. And recovering (Patent Document 4).
Japanese Patent Laid-Open No. 11-209087 JP-A-6-305313 JP 2003-170828 A (summary and FIG. 3) JP-A-9-123909

  However, as a derailment recovery means described above, the jack-up work by the operator's operation has a problem with danger. There is also a problem that the work takes time because it is a work by human power.

  Furthermore, tools such as a frame for derailment restoration are exclusively products including a jack-up function for derailment restoration, and are hardly involved in the track construction itself. Therefore, there is a problem in that mounting of equipment that is originally required for track construction is restricted by mounting the derailment recovery tool.

  In the case of a large track work vehicle, the total weight of the vehicle body increases, so that it is difficult to deal with human power. Further, in such a large track work vehicle, devices and equipment for derailment recovery are also large, and when these are mounted on the vehicle, there is a problem that mounting of originally necessary equipment is further restricted.

  In order to solve the above-mentioned problem, the present invention enables derailment recovery without installing derailment recovery dedicated equipment including a jack-up function on both front and rear sides of the vehicle, and even for a large track work vehicle. It is an object of the present invention to develop a track work vehicle that can easily recover from derailment and a method for recovering the derailment.

  In order to achieve the above object, a track working vehicle according to the present invention is a lifting device that moves up and down from a vehicle body bottom surface toward a track surface at a front and rear end of the vehicle body on a road body that can be traveled on a road with road traveling wheels. Track running wheels provided at the lower part of each of the lifting devices, and the vehicle body is mounted with a track maintenance device, and the track maintenance device has one end of the vehicle body connected to the track. It is configured with a driving force that can be lifted up and supported.

  The track maintenance equipment mounted on the vehicle body may be a track raising device that corrects the straight or curved state of the track and a roadbed compacting device that compacts the roadbed.

  In addition, the track maintenance equipment mounted on the vehicle body may be one unit corresponding to either the front or rear wheel, or two units may be mounted on the front and rear of the vehicle body.

  In addition, the vehicle body of the track work vehicle is equipped with an engine and is capable of self-propelled on the road and on the track, and a trailer that is towed by the trailer head and can travel on the road with road wheels. Either may be sufficient.

  In the case of a trailer, it may be provided with a power unit for self-propelled on a track and a driver's seat for operating the power unit.

  The derailment recovery method for the track work vehicle is such that the lower end of the track maintenance equipment mounted on the vehicle body is lowered in the track direction, and further lowered to bias the track running wheel side on which the vehicle body has been derailed. Next, the vehicle body is moved in the width direction so as to be positioned immediately above the track using the width direction moving function of the track maintenance devices, and then the vehicle body is lowered and the derailed track running wheel is It consists of the process of mounting on a track.

  In the case where one of the track maintenance devices mounted on the vehicle body is a track raising device, a derailment of the vehicle body is achieved by abutting the tip portion gripping the track line to the track and biasing the tip portion downward. The end on the wheel side is lifted from the track, and then the vehicle body is moved in the width direction so as to be positioned immediately above the track using the width direction moving function of the track raising device, and then the vehicle body is lowered and the derailment is performed. The track running wheel is restored by the process of placing it on the track.

  When one of the track maintenance devices mounted on the vehicle body is a roadbed compacting device, the derailment wheel of the vehicle body is lowered by lowering the lower end portion of the roadbed compacting device onto the roadbed and further biasing it downward. The side end is lifted from the track, and then the vehicle body is moved in the width direction so as to be positioned immediately above the track using the width direction moving function of the road bed compacting device, and then the vehicle body is lowered and derailed. It is restored by the process of placing the track wheels on the track.

  As described above, the present invention is configured so that the derailment can be recovered by using the function of the track maintenance devices. Therefore, it is not necessary to mount derailment recovery-dedicated equipment including a jack-up function on both the front and rear sides of the vehicle as in the prior art, and the mounting space of the track work vehicle can be used effectively.

  In addition, when recovering a derailed wheel, the track maintenance equipment used for track maintenance is used, so preparation work for derailment recovery is reduced or almost unnecessary, and recovery work is quick. Yes.

  When a track work vehicle is used as a trailer, it has a large mounting space, so that a high-horsepower large-sized device can be mounted as a track maintenance device. Therefore, it is possible to recover more quickly by utilizing the functions of these devices for derailment recovery, and it is possible to improve the progress efficiency of the entire construction.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side view of a track working vehicle according to an embodiment of the present invention, in which a vehicle body is used as a trailer, and FIG. 2 is a plan view.

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

  The trailer head 2 includes a truck engine (for example, a diesel engine, not shown) and a driver's seat 21, a steering wheel 22, and a drive wheel 23 that are originally provided in the trailer head, such as a coupler that locks the trailer 1 to the frame 24. A connecting device 25 is provided.

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

  Inside the trailer 1, bogies 3 and 3 are mounted on the front and rear portions.

  As shown in FIG. 3, the bogies 3 and 3 have axles 32 and 33 supported by a frame 31 at a predetermined parallel interval, and iron traveling wheels 34 and 35 are attached to the axles.

  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 at the front and rear of the trailer 1 are supported by the lifting devices 4f and 4a so as to be movable up and down from the bottom surface of the trailer 1 to the track 9 .

  The elevating device 4f provided in the front part of the trailer 1 has a structure shown in FIGS. That is, one end of a pair of link rods 42f, 42f arranged in parallel is pivotally supported by shafts 41f, 41f on the same axis provided on the body frame. A support rod 43f is installed between the other ends of the link rods 42f and 42f.

  A base 45f is supported by the support rod 43f in a suspended state via a suspension bracket 44f.

  The bogie 3 is attached to the base 45f so as to be rotatable around the vertical axis as indicated by an arrow.

  Extending and retracting devices 46f and 46f made of piston cylinders are connected to the intermediate portions of 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.

  The rotation range of the link rods 42f and 42f is such that the upper limit is the position where the bogie 3 is supported above the floor 13 of the trailer 1 as shown by the dotted line in FIG. On the other hand, the position 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 the vertical posture in order to stably support the load of the trailer 1.

  Next, the elevating device 4a provided at the rear part of the trailer 1 has a structure shown in FIGS. That is, like the front lifting device, a pair of link rods 42a and 42a arranged in parallel are pivotally supported on shafts 41a and 41a on the same axis provided at one end of the trailer 1 frame. . 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. By using this rotation function, the bogie 3 is fixed in a posture that substantially intersects the longitudinal axis of the trailer 1 as shown in FIG.

  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 on 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 connection shaft 47q. 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 driving direction of the piston cylinder device 46a 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 that temporarily supports the ground height higher than the installation height H (FIG. 1) of the coupling device 25 such as a coupler. In this embodiment, a track raising device 64 described later is also used as a support leg.

  The trailer 1 can be connected to and disconnected from the trailer head 2 by supporting the front of the vehicle body at a height H.

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, and are mounted on the bogies 3 and 3 including the piston cylinder devices 46 a and 46 f of the lifting device. The hydraulic drive device 36 and the like are driven.

  The trailer 1 as described above is provided with a track raising device 64 and a road bed compacting device 65 such as a tie tamper as track maintenance devices.

  Although one or two track maintenance devices may be mounted, here, a case where two devices are mounted corresponding to the front and rear carts will be described.

  That is, the track raising device 64 is provided in the vicinity of the front bogie bogie 3, and the road bed compacting device 65 is provided in the vicinity of the rear bogie bogie 3.

  The former track raising device 64 is also referred to as a rail leveling unit, and is used to correct distortion and distortion of the rail and to bend the rail.

  As shown in FIG. 8, piston cylinder devices 64a, 64b and 64c are connected to the vehicle body of the trailer 1 at three points on both sides in the width direction and in the center. One base frame 64f is connected to the ends of the piston cylinder devices 64a, 64b, 64c. A gripper 64g is connected to both sides of the base frame 64f via a piston cylinder device 64d and a link rod 64e.

  In addition, the vehicle body side ends of the three piston cylinder devices 64a, 64b, and 64c are respectively connected to the slider 64s, 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 is possible to move to.

  The base frame 64f of the rail leveling device 64 is movable up and down and left and right by the expansion and contraction control of the piston cylinder devices 64a, 64b and 64c.

  The three piston cylinder devices 64a to 64c, the link comprising the base frame 64e and the trailer 1 main body are composed of five links and six linkages with two degrees of freedom as shown in the skeleton diagram below in FIG. Consists of. The degree of freedom of the entire link is zero. Accordingly, if the cylinder piston devices 64a to 64c are expanded and contracted while being controlled, the base frame 64f can be uniquely shifted vertically and horizontally according to the amount of expansion and contraction.

  Further, the gripper 64g can grip the rail 9 by operating the piston cylinder device 64d to expand and contract.

  Accordingly, the track raising device 64 is configured to correct the bending of the rail 9 by gripping the rail 9 with the gripper 64g and controlling the expansion and contraction of the three piston cylinder devices 64a to 64c. In addition to the original function, the vehicle body 1 can be lifted or translated in the width direction by gripping the rail 9 with the gripper 64g and controlling the expansion and contraction of the piston cylinder devices 64a to 64c.

  As the roadbed compacting device 65, a tie tamper, a multi-tie tamper or the like is mounted as shown in FIG. The illustrated example is called a so-called 16-head tie tamper. The tie tamper 65 has eight vibrating pieces 65a as shown in FIG. As is apparent from FIG. 1, a total of 16 vibrating pieces 65a are arranged in the front row and the rear row. These vibration pieces 65a, vibration generators 65b, etc. are each slidably supported by a slider 65c in the vehicle width direction. The movement in the width direction is made possible by the cylinder piston device 65d.

  Further, it is supported so as to be movable in the vertical direction by the cylinder piston device 65e.

  Therefore, the vehicle body 1 can be lifted by extending the cylinder piston device 65e if the vibration piece 65a at the tip is not inserted into the road surface. Furthermore, in this state, it becomes possible to translate the vehicle body in the left-right direction by the cylinder piston device 65d.

  These operations are performed at the cockpit 66 (FIG. 1) of the trailer 1. In the figure, reference numeral 15 denotes the driver's seat when the trailer 1 is traveling on the track.

  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 recovery method at the time of derailment of the trailer 1 will be described.

  In the original operation, the trailer 1 is corrected by, for example, bending the rail of the track 9 up and down and left and right with the front track raising device 64. Further, the track is compacted by the roadbed compacting device 65. Then, these operations are performed while slowly moving along the trajectory.

If the wheel of the front bogie 3 is derailed during the track construction, the base frame 64f is lowered, the track 9 is gripped by the gripper 64g, and then the three cylinder piston devices 64a to 64c are controlled as shown in FIG. While stretching.

  As a result, the front side of the trailer 1 ascends from the track 9 as shown in FIGS. 12 and 13 together with the derailed wheels 34 and 35. Thereafter, the front side of the trailer 1 is moved in the left-right direction by extending and contracting while controlling the three cylinder piston devices 64a to 64c, and is moved right above the track.

  And if it comes to a position just above a track | truck, it will descend | fall, and as shown in FIG. 14, FIG. 15, the wheels 34 and 35 of the front bogie bogie 3 will be mounted on a track | orbit, and will be restored.

  Further, when the wheels 34 and 35 of the rear bogie 3 are derailed, the tie tamper 65 that has been operated is stopped. If the vibrating piece 65a is easily inserted into the road surface, the vibrating piece is once pulled up. Next, a support block 65h such as a sleeper is placed on the roadbed, and the vibrating piece 65a is lowered thereon. Thereafter, the cylinder piston devices 65e are driven together to urge the vibrating pieces 65a in the downward direction. Thereby, the rear part of the trailer 1 is lifted together with the wheels 34 and 35. Next, as shown in FIGS. 18 and 19, if the piston cylinder device 65d is expanded and contracted, the vehicle body of the trailer 1 can be moved in the left-right direction according to the expansion / contraction amount. In this way, when the vehicle is at a position immediately above the track, the trailer 1 is lowered, and the wheels 34 and 35 of the rear bogie 3 are placed on the track and restored as shown in FIGS.

  Note that when the trailer 1 is crossed to move from the road to the track, the method shown in FIG. 22 is used.

  That is, the trailer 1 travels on the road 10 by being pulled by the trailer head 2 to the destination. When reaching the railroad crossing 8 where the track near the destination and the road intersect, the trailer head 2 is steered so that the rear part of the trailer 1 is positioned on the railroad 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. 23, the piston cylinder 48a of the elevating part 4a is extended to rotate the link rods 42a and 42a (FIGS. 6 and 7) downward, and the rear bogie 3 is lowered. The rear bogie 3 is lowered while being suspended from the base 45a, and then gets on the track 9.

  When the piston cylinder 48a is further 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.

  Next, as shown in FIG. 24, the rear part of the trailer 1 is moved in the direction of the arrow X along the track 9 by the rear bogie 3 and simultaneously the trailer head 2 is also moved backward in the direction of the arrow Y.

  This movement is self-propelled by a drive source such as a hydraulic motor attached to the bogie 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 an imaginary line in FIG. 24 and gradually changes its posture to the trajectory 9. At this time, the side wall of the trailer 1 moves so as to substantially follow a 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 shifted 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 coincides with the direction in which the track 9 extends, the trailer 1 stops and the gripper 64g of the track raising device 64 is lowered until it reaches the track. 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.

  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. 26, the front part of the trailer 1 is supported by the track raising device 64, and the rear part is supported by the bogie 3.

  Then, as shown in FIG. 27, 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 orbiting device 64, a very strong force is not required until the link rod 42f is brought to the upright posture.

  In addition, when the position of the traveling wheel of the bogie bogie 3 is shifted in the left-right direction with respect to the track 9, the expansion and contraction operation of the three piston cylinder devices 64 a to 64 c of the track raising device 64 is performed on the vehicle body front portion of the trailer 1. By using this, fine movement adjustment in the left-right direction can be performed.

  If the front bogie 3 is placed on the track 9 of the crossing 8 as shown in FIG. 28, the track raising device 64 is retracted.

  Therefore, the trailer 1 can travel along the track 9 thereafter.

  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 a curved track.

Then, we will self to the construction site by driving the driving unit 3 6, it is to carry out the work required by utilizing the power source of the drive unit.

  As an embodiment of the above track work vehicle, the case where the track maintenance equipment to be mounted is two different types of equipment has been shown, but the same track maintenance equipment is arranged and mounted on the front and rear of the vehicle body. It is good as well.

  For example, two tie tampers that are roadbed compacting devices may be mounted on the front and rear of the vehicle body, or two track raising devices may be mounted on the front and rear of the vehicle body in the same manner. Alternatively, only one track maintenance device may be installed. In this case, conventional equipment such as a normal jack device is used as needed for derailment recovery of the wheel on the side where the equipment for track maintenance is not provided. In short, it is only necessary that the track maintenance devices are arranged corresponding to either or both of the front and rear wheels.

  Moreover, although the case of a trailer has been shown as the type of vehicle, the present invention is not limited to this, and the present invention can also be implemented in a track work vehicle using a vehicle body of a truck 1a equipped with an engine as shown in FIG.

  Also in this case, the vehicle body of the truck 1a is provided with rubber tire traveling wheels 22 and 23 for road traveling and iron traveling wheels 34 and 35 which are lifted and lowered in the rail direction from the bottom of the vehicle body by lifting devices 4f and 4a. Track maintenance devices 64 and 65 are mounted.

In the derailment recovery, the derailment recovery is performed using the track maintenance devices 64 and 65 corresponding to the front wheels and the rear wheels, respectively.

  In addition, the equipment mounted and the derailment restoration work using them are substantially the same as those described for the trailer 1. Detailed description will be omitted by attaching the same reference numerals to the same portions or corresponding portions.

  As described above, the track working vehicle according to the present invention, when derailed during construction, uses the function of the track maintenance equipment mounted on the vehicle body to restore the derailed vehicle. It is not necessary to mount the equipment devices on both the front and rear sides of the vehicle. In particular, when two track maintenance devices are mounted corresponding to the front and rear wheels, special equipment devices for derailment recovery can be omitted on both the front and rear sides. As a result, the loading capacity of the vehicle can be used more effectively.

  In addition, since derailment recovery can be continuously performed in a situation where each track maintenance device is used, the operation can be performed quickly.

  Furthermore, since it is possible to eliminate or reduce the need for an operator to approach the derailed wheel, it is possible to obtain an effect that the work can be performed very safely.

It is a side view of the trailer as an example of a track work vehicle. It is a top view of the trailer as an example of a track work vehicle. It is a top view of a bogie truck. It is a perspective view of the raising / lowering device of a bogie truck. It is operation | movement explanatory drawing of the raising / lowering apparatus of a bogie truck. It is a perspective view of the other raising / lowering apparatus of a bogie truck. It is operation | movement explanatory drawing of the other raising / lowering apparatus of a bogie truck. It is a schematic front view for demonstrating the track raising apparatus as track maintenance equipment. It is a schematic front view for demonstrating the roadbed compaction apparatus as a track maintenance apparatus. It is a schematic front view explaining the initial process of derailment recovery by a track raising apparatus. It is a schematic side view explaining the initial step of derailment recovery by the track raising apparatus. It is a schematic front view explaining the intermediate process of derailment recovery by an orbital riser. It is a schematic side view explaining the intermediate process of derailment recovery by an orbital riser. It is a schematic front view explaining the last process of derailment recovery by an orbital riser. It is a schematic side view explaining the last process of derailment restoration by an orbital riser device. It is a schematic front view explaining the initial process of derailment restoration by a roadbed compaction device. It is a schematic side view explaining the initial process of derailment restoration by a roadbed compaction device. It is a schematic front view explaining the intermediate process of derailment restoration by a roadbed compaction device. It is a schematic side view explaining the intermediate process of derailment restoration by a roadbed compaction device. It is a schematic front view explaining the last process of derailment restoration by a way bed compaction device. It is a schematic side view explaining the final process of derailment restoration by a roadbed compaction device. 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. It is a schematic side view which shows the other structural example of a track work vehicle.

Explanation of symbols

1 ... Vehicle for track work (trailer)
2 ... trailer head 3 ... bogie bogie 4f ... front lifting device 4a ... rear lifting device 5 ... support leg 6 ... power source 8 ... railroad crossing 9 ... track 10 ... road 11 ... rubber tire wheel 15 ... driver's seat on trailer track DESCRIPTION OF SYMBOLS 24 ... Frame 25 ... Coupling device 31 ... Bogie cart frame 32 ... Axle 33 ... Axle 34 ... Iron traveling wheel 35 ... Iron traveling wheel 36 ... Drive device such as hydraulic motor 37 ... Braking device such as hydraulic disc brake 64 ... Track maintenance Orbit climbing device 64a ... piston cylinder device 64b ... piston cylinder device 64c ... piston cylinder device 64f ... base frame 64d ... piston cylinder device 64e ... non-expandable link rod 64g ... gripper 64s ... slider 65 ... track maintenance device As a roadbed compaction device ( Tamper)
65a ... Vibrating piece 65a
65b ... vibration generator 65c ... slider 65d ... cylinder piston device 65e ... cylinder piston device

Claims (7)

A lifting device that moves up and down from the bottom of the vehicle body toward the raceway surface at the front and rear ends of the vehicle body that can travel on the road with road wheels,
And a track for running wheels provided on each of the lower portion of the lifting device,
The vehicle body is equipped with equipment for track maintenance,
The track maintenance for equipment is supportable driving force lifting the end of the vehicle body from the track, and comprises a crosswise movement function of moving in the width direction so as to position the vehicle body immediately above the track,
A track work vehicle in which the track maintenance equipment mounted on the vehicle body is at least one of a track raising device that corrects the straight or curved state of the track and a road bed compacting device that compacts the road bed . The track work vehicle according to claim 1, wherein the vehicle body includes an engine and is capable of traveling on a road and on a track. The vehicle body is on the road and travelable trailer running wheel, driven by the trailer head road, the front and rear ends of the vehicle body, a lifting device for lifting towards the ground surface from the underbody of the lifting device The track work vehicle according to claim 1 or 2, further comprising a bogie truck supported at each lower end so as to be rotatable about a vertical axis. The track work vehicle according to claim 3 , further comprising: a power unit that drives wheels of the bogie, and a driver's seat for operating the power unit. A recovery method when the track working vehicle according to any one of claims 1 to 4 is derailed, wherein a lower end portion of track maintenance equipment mounted on the vehicle body is lowered in a track direction, and further a descent force By energizing the vehicle, the end of the derailment wheel side of the vehicle body is lifted from the track, and then the vehicle body is moved in the width direction so that the vehicle body is positioned immediately above the track using the width direction moving function of the track maintenance devices. A derailment recovery method for a track work vehicle in which the vehicle body is lowered and the derailed track running wheel is then placed on the track. The track maintenance equipment mounted on the vehicle body is a track climbing device having a tip portion for lifting the track line and a drive unit for moving the tip portion in the width direction of the track, and the tip portion is The end of the derailment wheel side of the vehicle body is lifted from the track by abutting the track and urging the tip, and then the vehicle body is moved to the track by using the width direction moving function of the track raising device. The track derailment recovery method according to claim 5 , wherein the vehicle is moved in the width direction so as to be positioned directly above, and then the vehicle body is lowered to place the derailed track running wheel on the track. The track maintenance equipment mounted on the vehicle body is a roadbed compacting device, and the lower end portion of the roadbed compacting device is lowered to the surface of the roadbed and further lowered to bias the end on the derailing wheel side of the vehicle body. The section is lifted from the track, and then the vehicle body is moved in the width direction so as to be positioned immediately above the track using the width direction moving function of the road bed compacting device, and then the vehicle body is lowered and the derailed track running The method for recovering derailment from a track working vehicle according to claim 5 , wherein the wheel is placed on the track.

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