JP2006168552A - Track-road type working vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a track-road type working vehicle capable of avoiding interference of an outrigger jack of the track-road type working vehicle with a track traveling device, and preventing any damage of a device, a member or the like to constitute the track-road type working vehicle. <P>SOLUTION: The track-road type working vehicle 1 comprises a vehicle body 10 having tire wheels 11 and steel wheels 22, a track traveling device 2 which movably holds the steel wheels 22 at the upper storage position and the lower expansion position, and positions the steel wheels 22 at the expansion position in a track traveling mode and loads the steel wheels 22 on the track, and an outrigger device 4 consisting of a jack 45 and a beam 40 capable of expandably supporting the jack 45 outwardly in the vehicle width direction from right and left side parts of the vehicle body 10. The track-road type working vehicle further comprises a controller 100 to regulate the downward elongation of the jack 45 when a steel wheel position sensor 91 detects that the steel wheels 22 are located at the storage position, and an outrigger expansion sensor 92 detects that the expansion of the jack 45 outwardly in the vehicle width direction is below a predetermined value. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a track-and-rail work vehicle that includes road traveling wheels and track traveling wheels and is configured to be able to travel on roads and on tracks.

  The track-and-rail work vehicle is based on a truck vehicle having road traveling wheels (hereinafter also referred to as wheels) on the front, rear, left and right sides of the vehicle body, and includes track traveling wheels (hereinafter also referred to as iron wheels) on the front, rear, and left and right sides of the vehicle body. The Each of the four iron wheels constitutes a track traveling device that is held movably between an upper storage position and a lower overhanging position by driving a hydraulic cylinder or the like. The road is able to run on the road, and the iron wheel is placed on the track by positioning the iron wheel in the downward projecting position, and the track can be run. In addition, a track traveling device provided on the front left and right or rear left and right is provided with a motor or the like for rotationally driving the iron wheel to be held.

  Various working devices are mounted on the vehicle body on a railroad work vehicle. If the working device is configured to have a boom that can be swung, extended, expanded, or moved up and down, it acts on the vehicle as the boom operates. An outrigger device is provided to resist the falling load. The outrigger device is composed of a jack whose lower side can be expanded and contracted in the vertical direction of the vehicle body, and a beam that supports the jack so that it can project outward from the left and right sides of the vehicle body in the vehicle width direction (left and right direction). By extending the lower end of the jack to the ground by extension, the vehicle body is supported and work safety is achieved. Further, in order to ensure a wide work safety area, the jack is extended outward in the vehicle width direction by a beam.

Examples of the work device include a self-loading crane device and the like, and such a crane device is attached to the crane body so as to be tiltable in a vertical plane in the vehicle width direction. There is one configured to be able to be held in a tilting posture of a desired angle by driving a hydraulic cylinder straddling between them (for example, Patent Document 1). According to this configuration, the horizontal posture of the crane apparatus is maintained with the wheels (steel wheels) in contact with the ground by driving the hydraulic cylinders according to the inclination even when the vehicle is stopped to work on the slope. Can be secured, and the lifting work can be made safe. In addition, since the track is provided with a constant inclination (cant) in the curved portion, the crane device mounted on the track-and-rail work vehicle can be configured to ensure a horizontal posture regardless of the inclination. It is effective in ensuring safety.
JP 2002-370894 A

  In an orbital work vehicle equipped with the crane device, an outrigger device may be disposed so that the jack is positioned above the front iron wheel at the retracted position with the beam in the retracted posture. In such a configuration, when the iron wheel is in the retracted position and the beam is in the retracted posture and the jack is extended downward, the component member of the outrigger device and the component member of the track traveling device interfere with each other, and for example, a motor that drives the iron wheel There was a problem of causing breakage of the jack or deformation or breakage of the lower end of the jack. On the other hand, if the beam is in the retracted position, a member that restricts the operation of the lever of the jack telescopic cylinder is provided on the outrigger device side so that the jack is not extended downward. Even if the vehicle is on a track and the iron wheel is in the overhang position and the interference does not occur, the jack cannot be extended downward if the beam is in the retracted position, and the vehicle body cannot be supported by jack grounding. There was a problem that. This is a particular problem at work sites where the roadbed is narrow, such as on a slab track, and the jack cannot be satisfactorily extended outward in the vehicle width direction by a beam.

  Moreover, as shown also in patent document 1, a crane apparatus may be comprised integrally with an outrigger apparatus via structural members, such as a beam, for example, and, thereby, an outrigger apparatus interlock | cooperates with tilting of a crane apparatus. It becomes. For this reason, when the crane device is tilted while the beam is retracted on the slope on the road, the outrigger device interlocked with the crane device interferes with the track traveling device that holds the iron wheel in the retracted position, and the same as above. There has been a problem that the motor and the like may be damaged. Furthermore, even if the tilting does not cause any interference, there is a problem that the outrigger device and the track traveling device may interfere with each other due to the downward extension of the jack after the tilting. The same problem arises when the outrigger device is disposed so that the jack means is positioned above the front iron wheel in the extended position with the beam retracted.

  In view of such a problem, the present invention avoids interference between an outrigger device and a track traveling device of a railroad work vehicle, and can prevent damage to devices, members, and the like constituting the railroad work vehicle. The purpose is to provide.

  In order to achieve the above object, a track-and-rail work vehicle according to a first aspect of the present invention includes a vehicle body capable of traveling on a road and on a track with road traveling wheels and track traveling wheels on the front, rear, left and right, and a track traveling wheel. It is held movably between the retracted position moved upward and the extended position extended downward, and the road wheels are placed in the retracted position when traveling on the road and the road wheels are grounded. A track running device that places the wheels on the track with the wheels in the overhang position, and a jack and a jack whose lower side can be expanded and contracted in the vertical direction of the vehicle body outward from the left and right sides of the vehicle body in the vehicle width direction In an orbital work vehicle having an outrigger device comprising a beam that is supported so as to be able to project, a jack is positioned above the track running wheel located at the retracted position, and the track running wheel is Exit position Wheel position detecting means (for example, the iron wheel position sensor 91 in the embodiment) for detecting whether the jack is in the retracted position, and an outrigger extension for detecting the outward extension state of the jack by the beam in the vehicle width direction It is detected by the detection means (for example, the outrigger extension sensor 92 in the embodiment) and the wheel position detection means that the track traveling wheel is located at the retracted position, and the outrigger extension detection means detects the vehicle width direction of the jack. Jack extension restricting means (for example, the controller 100 in the embodiment) for restricting the downward extension of the jack when it is detected that the outward projecting amount is less than the predetermined amount is provided.

  Further, the track-and-rail work vehicle according to the second aspect of the present invention has a vehicle body that can travel on the road and on the road with road traveling wheels and track traveling wheels on the front, rear, left and right, and the track traveling wheels moved upward. It is held movably between the retracted position and the overhanging position, and when traveling on the road, the track traveling wheel is positioned at the retracted position to ground the road traveling wheel, and when traveling on the track, the track traveling wheel is extended. The track running device that places the wheel for track running on the track and the jack that can extend and contract in the vertical direction of the vehicle body and the jack can be extended outward from the left and right sides of the vehicle body in the vehicle width direction In the track-and-work vehicle having an outrigger device comprising a beam that supports the jack, the jack is positioned above the orbital running wheel located at the retracted position, and the beam is positioned in the vehicle width direction with respect to the vehicle body. In the vertical plane The wheel position detecting means (for example, the iron wheel position sensor 91 in the embodiment) for detecting whether the orbital traveling wheel is located at the extended position or the retracted position, and the jack of the beam The track running wheel is located at the retracted position by the outrigger overhang detecting means (for example, the outrigger overhang sensor 92 in the embodiment) for detecting the outwardly extending state in the vehicle width direction and the wheel position detecting means. And the tilt regulating means for regulating the tilt of the beam when the outrigger extension detecting means detects that the amount of extension of the jack outward in the vehicle width direction is less than a predetermined amount (for example, the embodiment) Controller 100).

  In addition, a track-and-work vehicle according to the third aspect of the present invention includes a vehicle body capable of traveling on a road and on a track with road traveling wheels and track traveling wheels on the front, rear, left and right, and the track traveling wheel moved upward. It is held movably between the retracted position and the overhanging position, and when traveling on the road, the track traveling wheel is positioned at the retracted position to ground the road traveling wheel, and when traveling on the track, the track traveling wheel is extended. The track running device that places the wheel for track running on the track and the jack that can extend and contract in the vertical direction of the vehicle body and the jack can be extended outward from the left and right sides of the vehicle body in the vehicle width direction In the track-and-rail work vehicle having an outrigger device composed of a beam supported on the track, the jack is located above the track traveling wheel positioned at the extended position, and the track traveling wheel is Storage position Wheel position detection means (for example, an iron wheel position sensor 291 in the embodiment) for detecting which position is located, and outrigger extension detection means (for example, an extension state of the jack outward in the vehicle width direction by the beam) In the embodiment, the outrigger extension sensor 92) and the wheel position detection means detect that the track running wheel is located at the extension position, and the outrigger extension detection means outwards the jack in the vehicle width direction. Jack extension regulating means (for example, the controller 200 in the embodiment) that regulates the downward extension of the jack when it is detected that the amount of overhang is less than a predetermined amount.

  Further, a track-and-work vehicle according to a fourth aspect of the present invention includes a vehicle body capable of traveling on a road and on a track with road traveling wheels and track traveling wheels on the front, rear, left and right, and the track traveling wheels moved upward. It is held movably between the retracted position and the overhanging position, and when traveling on the road, the track traveling wheel is positioned at the retracted position to ground the road traveling wheel, and when traveling on the track, the track traveling wheel is extended. The track running device that places the wheel for track running on the track and the jack that can extend and contract in the vertical direction of the vehicle body and the jack can be extended outward from the left and right sides of the vehicle body in the vehicle width direction In an orbital work vehicle comprising an outrigger device comprising a beam that is supported by a jack, the jack is positioned above the track running wheel located at the extended position, and the beam is directed in the vehicle width direction with respect to the vehicle body. In the vertical plane of The wheel position detecting means (for example, the iron wheel position sensor 291 in the embodiment) for detecting whether the orbital traveling wheel is located at the extended position or the retracted position, and the jack of the beam The track running wheel is located at the overhanging position by the outrigger overhang detecting means (for example, the outrigger overhang sensor 92 in the embodiment) for detecting the outward projecting state in the vehicle width direction and the wheel position detecting means. Is detected, and when the outrigger extension detecting means detects that the amount of extension of the jack outward in the vehicle width direction is less than a predetermined amount, the tilt restriction means for restricting the tilt of the beam (for example, implementation) Controller 200) in the embodiment.

  Thus, the track-and-rail work vehicle according to the first aspect of the present invention has the jack positioned above the track traveling wheel located at the retracted position and the outrigger device provided, and the track traveling wheel is located at the retracted position. In addition, a jack extension regulating means for regulating the downward extension of the jack if the amount of the extension of the jack in the vehicle width direction by the beam is less than a predetermined amount is provided. For this reason, even if there is an operation of extending the jack downward on the road with the jack protruding outward in the vehicle width direction below a predetermined amount, the jack extension restricting means regulates the downward extension of the jack, and the outrigger Interference between the device and the track traveling device can be avoided, and damage to devices, members, etc. constituting the track work vehicle can be prevented. On the other hand, the extension of the track running wheel allows the jack to extend downward regardless of the extension amount of the jack to the outside in the vehicle width direction, and the jack extends outward in the vehicle width direction on the track. Even at a work site where the overhang cannot be satisfactorily performed, the work can be performed by extending the jack downward without overhanging the jack by the beam.

  In addition, the track-and-work vehicle according to the second aspect of the present invention is the track-and-rail vehicle in which the beam of the outrigger device can tilt, and the orbital traveling wheel is in the retracted position and the jack extends outward in the vehicle width direction by the beam. If the amount is less than the predetermined amount, tilt restriction means for restricting the tilt of the beam is provided. For this reason, even if there is an operation of tilting the beam in the retracted position on the road, tilting of the beam is regulated by the tilt regulating means, and interference between the outrigger device and the track traveling device can be avoided, It is possible to prevent damage to the devices, members, and the like that are configured. On the other hand, the tilting of the beam is permitted by extending the orbital running wheel, and the horizontal posture of the beam and the structural member integrated with the beam is maintained regardless of the amount of extension of the jack by the beam on the track. Can be secured.

  Further, the track-and-work vehicle according to the third aspect of the present invention has a jack positioned above the track running wheel located at the overhang position and an outrigger device provided, and the track running wheel is at the overhang position. In addition, a jack extension regulating means for regulating the downward extension of the jack if the amount of the extension of the jack in the vehicle width direction by the beam is less than a predetermined amount is provided. For this reason, even if there is an operation for extending the jack downward on the track with the extension amount of the outrigger device being less than the predetermined amount, the jack extension restricting means restricts the downward extension of the jack, and the outrigger device and the track run. Interference with the apparatus can be avoided, and damage to the apparatus, members and the like constituting the track work vehicle can be prevented. On the other hand, even at work sites where the jack cannot be satisfactorily extended outward in the vehicle width direction on the road, work should be performed by extending the jack downward without extending the jack with the beam. Can do.

  Further, the track-and-work vehicle according to the fourth aspect of the present invention has a jack positioned above the track running wheel located at the overhang position and an outrigger device provided, and the track running wheel is in the overhang position. In addition, if the amount of extension of the jack outward in the vehicle width direction by the beam is less than a predetermined amount, it is configured to include tilt restriction means for restricting the tilt of the beam. For this reason, even if there is an operation of tilting the beam while keeping it in the retracted position on the track, tilting of the beam is regulated by the tilt regulating means, and interference between the outrigger device and the track traveling device can be avoided, It is possible to prevent damage to the devices, members, and the like that are configured. On the other hand, the tilting of the beam is permitted by storing the orbital running wheels, and the horizontal posture of the beam and the components integrated with the beam is ensured regardless of the amount of extension of the jack on the road. can do.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a track-and-work vehicle 1 according to a first embodiment of the first and second aspects of the present invention. This track-and-rail work vehicle 1 is configured by using a truck vehicle capable of traveling on the road as a base of a vehicle body 10. The vehicle body 10 is provided with a frame 10 a extending in the front-rear direction, and a loading platform 5 is disposed at a rear portion on the frame 10 a. Yes. .. Are provided on the front, rear, left, and right sides of the vehicle body 10 so that road driving can be performed from the driving cabin 12 with road wheels.

  In addition, the track work vehicle 1 is provided on the front, rear, left and right of the lower part of the vehicle body 10 to perform a track travel, a crane device 3 for performing a hoisting operation on the track, and an action on the vehicle during the work. The outrigger device 4 is configured to support the vehicle body 10 against the falling load. Further, since the track work vehicle 1 is swiveled while turning between road running and track running, a turntable device 6 configured to be vertically extendable and horizontally turnable is attached to the frame 10a at the center lower portion of the vehicle body 10. It is attached.

  As shown in FIGS. 2 (a) and 2 (b), the track traveling device 2 rotates on the iron wheel holding frame 21 attached to a support frame 19a projecting downward from the lower portions on both sides of the frame 10a. It is composed of a disc-shaped iron wheel 22 that is freely held, an iron wheel lifting cylinder 71 that is operated by hydraulic pressure, and the like.

  The iron ring holding frame 21 is formed in an inverted U shape, and is pivotably pivoted in the vertical direction around a support shaft 23 that projects horizontally from the lower portion of the support frame 19a. A disk-shaped iron ring 22 is rotatably attached to a lower end portion between both side plates 21a and 21b of the iron ring holding frame 21. In the two front track running apparatuses 2, an iron wheel motor 72 that is connected to the rotating shaft of the iron wheel 22 and rotates the iron wheel 22 is attached to the side plate 21 a outside the vehicle body of the iron wheel holding frame 21.

  At the base of the iron wheel holding frame 21, there is provided a pivot portion 24 that protrudes toward the vehicle rear side at a predetermined angle with the iron wheel holding frame 21 and swings with the iron wheel holding frame 21 around the support shaft 23. The pivot portion 24 is plate-shaped, and a long hole 25 extending in the vertical direction is provided at the tip portion thereof. Between the long hole 25 and the vehicle body 10, an iron wheel elevating cylinder 71 is provided which is pivoted across the long hole 25 and the vehicle body 10.

  The iron-wheel traveling device 2 configured in this manner moves the iron-wheel lifting cylinder 71 in a contracted manner so that the iron-wheel holding frame 21 is placed in the retracted position indicated by the two-dot chain line to position the iron wheel 22 in the retracted position. 11,... Enables road driving. Further, when traveling on the track, the iron wheel elevating cylinder 71 is extended to move the iron wheel holding frame 21 to the protruding position shown by the solid line so that the iron wheel 22 is positioned at the protruding position, and the iron wheel 22 is moved on the track. The front wheel 2 is rotated by rotating the iron wheel motor 72 and the track-and-rail work vehicle 1 can travel on the track.

  As shown in FIGS. 1 and 3, the crane device 3 is attached to a support bracket 19 b fixed on the frame 10 a between the operation cabin 12 and the loading platform 5 in a tiltable manner in a vertical plane in the vehicle width direction. A pivot post 32 that is driven by a pivot motor (not shown) and configured to be horizontally pivotable, a boom 33 that is pivotally coupled to the pivot post 32, and a hook that is provided at the tip of the boom 33. , And a wire 36 from the hook 34 is wound around a winch (not shown) attached to the turning post 32. The boom 33 is configured by fitting a base end boom 33a, an intermediate boom 33b, and a distal end boom 33c in a nested manner, and is configured to be able to expand and contract by operation of a built-in expansion cylinder (not shown). In addition, the boom 33 is configured to be movable up and down by the operation of a hoisting cylinder 73 straddling between the turning post 32 and the boom 33.

  As shown in FIG. 3, a tilt bracket 36 is pivotally supported by a support bracket 19b attached to the frame 10a via a support pin 37 so as to be tiltable left and right. The base 31 is provided on the tilt bracket 36. ing. In addition, a tilt cylinder 74 is provided between the crane support bracket 19b and the tilt bracket 36, and the tilt bracket 36 can be tilted together with the base 31 as the tilt cylinder 74 expands and contracts. Can be held in a desired tilting posture. The allowable tilt angle of the crane device 3 is defined by the pivot position of the tilt cylinder 74 and the allowable expansion / contraction stroke.

  The outrigger device 4 includes a jack 45 that can be expanded and contracted in the vertical direction of the vehicle body, and a beam 40 that supports the jack 45 so as to extend outward from the left and right sides of the vehicle body 10 in the vehicle width direction. The beam 40 includes a base 31 that is formed in a tubular shape and extends in the vehicle width direction, and inner beams 41 and 41 that are inserted into the base 31 and can be expanded and contracted in the vehicle width direction. The jack 45 is attached to the tip of each of the inner beams 41, 41 and extends in the vehicle vertical direction, an inner post 47 that is fitted in the outer post 46 and can be expanded and contracted in the vertical direction, and a lower end portion of the inner post 47. The jack pad 48 is provided.

  The beam 40 can be extended outwardly in the vehicle width direction of the vehicle body 10 from the state in which the inner beam 41 is stored and accommodated in the base 31 by extending an outrigger extension cylinder 75 provided in the inner beam 41. In this embodiment, the outrigger extension cylinder 75 is fully contracted to store the inner beam 41 in the base 31, and the outrigger extension cylinder 75 is fully extended to move the inner beam 41 to the vehicle. The extension state of the jack 45 by the beam 40 can be set in three stages, that is, the full extension position extended outward in the width direction and the intermediate position between the storage position and the full extension position. Further, the jack 45 is configured such that the inner post 47 can be expanded and contracted in the vertical direction by the expansion and contraction movement of the jack expansion / contraction cylinder 76 extending inside each of the outer post 46 and the inner post 47. The inner post 47 can be stored in the outer post 46 by the movement, and the inner post 47 is extended downward by the extension movement of the jack extension cylinder 76 so that the jack pad 48 is grounded to support the vehicle body 10 and resist the overturning load acting on the vehicle. Can be done.

  In the track-and-rail work vehicle 1 configured in this way, as shown in FIG. 1, when the iron wheel 22 is located at the retracted position and the beam 40 and the jack 45 are respectively retracted, the left and right track traveling devices 2. , 2, the jack pads 48, 48 are positioned respectively, and if the iron wheel 22 is positioned at the overhanging position, the track traveling devices 2, 2 provided on the front left and right sides are connected to the outrigger device 4. It is located on the front side. The base 31 is tilted by the operation of the tilt cylinder 74 and the crane device 3 on the base 31 is tilted. The outrigger device 4 having the base 31 as a constituent member of the boom 40 is interlocked with the tilt of the crane device 3. Since the track traveling device 2 is fixed to the support frame 19a provided on the frame 10a, it does not interlock with the tilting of the crane device 3.

  In addition, an operation unit 80 for operating the track traveling device 2, the crane device 3, the outrigger device 4 and the like is disposed on the proximal end side of the swing post 32 of the crane device 3. The operation unit 80 includes an iron wheel overhanging operation lever 81 for performing an overhanging operation of the iron wheel 22, an outrigger overhanging operation lever 82 for performing an overhanging operation of the inner beam 41, and an inner post 47. A jack extension operation lever 83 for performing an extension operation and a tilt operation lever 84 for performing a tilt operation of the base 31 are provided, and an operation signal is output to the controller 100 when each operation lever is operated. It has become. The operation unit 80 includes a crane turning operation lever for turning the turning post 32, a crane raising / lowering operation lever for raising and lowering the boom 33, a crane extension operation lever for extending and retracting the boom 33, and a hook. A winch operation lever or the like for performing the lifting operation by 34 is also arranged in the same manner.

  As shown in FIG. 4, the hydraulic oil from the hydraulic pump P disposed in the vehicle body 10 is supplied to the hydraulic actuator 70 via the control valves V1 to V4. The first control valve V1 corresponding to the iron wheel elevating cylinder 71 is electromagnetically driven in response to the output of the operation signal from the exit / retract operation lever 81, and the outrigger extension cylinder is output by the operation detection signal output from the outrigger extension / retraction operation lever 82. The second control valve V2 corresponding to 75 is electromagnetically driven, and the third control valve V3 corresponding to the jack expansion / contraction cylinder 76 is electromagnetically driven by the operation signal output from the jack expansion / contraction operation lever 83, and the operation from the tilt operation lever 84 is performed. The fourth control valve V4 corresponding to the tilting cylinder 74 is electromagnetically driven by the output of the detection signal. As a result, the hydraulic actuator 70 is actuated according to the lever operation at the operation unit 80 by the operator.

  An iron wheel position sensor 91 that detects the position of the iron wheel 22 is disposed in each of the two track traveling devices 2 in the front. If the iron wheel 22 is located at the overhang position, the iron wheel position sensor 91 projects the iron wheel overhang. A detection signal is output to the controller 100. Further, the outrigger device 4 is provided with an outrigger extension sensor 92 that detects whether or not the inner beam 41 is extended beyond the intermediate position, that is, to the intermediate position or the full extension position by the extension movement of the outrigger extension cylinder 75. The outrigger extension sensor 92 outputs an outrigger extension detection signal to the controller 100 when the inner beam 41 extends beyond the intermediate position.

  If neither the iron ring extension detection signal nor the outrigger extension detection signal is output, the controller 100 controls the extension movement of the jack extension cylinder 76 regardless of the operation of the jack extension lever 83. 3 Control the control valve V3. If at least one of the iron wheel overhang detection signal and the outrigger overhang detection signal is output, the third control valve V3 is electromagnetically driven according to the operation of the jack expansion / contraction operation lever 83, and the jack expansion / contraction cylinder 76 is operated. Extension motion is allowed.

  Further, if neither the iron wheel overhang detection signal nor the outrigger overhang detection signal is output, the controller 100 restricts the operation of the tilt cylinder 74 regardless of the operation of the tilt operation lever 84 and the base 31 is positioned in the horizontal position. The fourth control valve V4 is controlled so as to be held at the same time. If at least one of the iron wheel overhang detection signal and the outrigger overhang detection signal is output, the fourth control valve V4 is electromagnetically driven according to the operation of the tilt operation lever 84, and the tilt cylinder 74 is actuated. Allowed.

  Therefore, if the inner beam 41 is in the retracted position when the vehicle is on the road and the ferrule 22 is in the retracted position, the iron wheel position sensor 91 and Since no detection signal is output from any of the outrigger extension sensors 92, the downward extension of the inner post 47 is restricted by the valve control of the controller 100, and the extension operation of the jack extension operation lever 83 is not reflected. In the same state, even if the tilt operation lever 84 is operated, the tilt of the base 31 is similarly restricted by the valve control of the controller 100, and the tilt operation of the tilt operation lever 84 is not reflected.

  If the inner beam 41 is extended to the intermediate position when the vehicle is on the road and the iron wheel 22 is in the retracted position, the output of the outrigger extension detection signal from the outrigger extension sensor 92 to the controller 100 is output. The inner post 47 is allowed to extend downward. Similarly, tilting of the base 31 is permitted. Further, the same effect is obtained when the inner beam 41 is extended to the fully extended position. In this embodiment, when the base 31 is tilted to the allowable tilt angle and the inner beam 41 is extended to the intermediate position, the inner post 47 is extended downward so as not to interfere with the track traveling device 2. An allowable tilt angle and an intermediate position are set.

  If the vehicle is on the track and the iron wheel 22 is located at the overhang position, an iron wheel overhang detection signal is output to the controller 100. For this reason, the lower extension of the inner post 47 is permitted regardless of the protruding state of the inner beam 41. In addition, if the iron wheel 22 is located at the front projecting position with respect to the outrigger device 4, even if the inner post 47 is extended downward while the inner beam 41 is located at the retracted position, the outer trigger device 4 and the orbit running It does not interfere with the device 2.

  Further, when the base 31 is tilted according to the cant of the track curve portion and the horizontal posture of the crane device 3 is ensured, the iron wheel 22 is located at the overhanging position and the iron wheel overhanging detection signal is output. Regardless of the protruding state of the inner beam 41, the base 31 is allowed to tilt. Note that if the iron wheel 22 is located at the front projecting position with respect to the outrigger device 4, even if the base 31 is tilted with the inner beam 41 of the outrigger device 4 located at the retracted position, There is no interference with the track traveling device 2.

  As described above, in the track-and-work vehicle 1 according to the first aspect of the present invention, when the iron wheel 22 is located at the retracted position and the inner beam 41 is located at the retracted position, the downward extension of the inner post 47 is restricted. It is configured. For this reason, even if an operation of extending the inner post 47 downward while the inner beam 41 is stored on the road is performed, the downward extension of the inner post 47 is restricted by the controller 100. Interference with the apparatus 2 can be avoided, and damage to the apparatus, members, and the like that constitute the railroad work vehicle 1 can be prevented. On the other hand, the extension of the inner post 47 is permitted by the iron wheel 22 being extended, and on the track, for example, a work site where the beam 40 cannot be satisfactorily extended because the roadbed is narrow, such as on the slab track. Even so, the inner post 47 can be extended downward with the inner beam 41 positioned at the retracted position, and the work can be performed while the vehicle is stably supported. Further, the inner post 47 can be extended downward as long as the inner beam 41 extends to at least an intermediate position on the road. Thus, according to this configuration, it is possible to provide an orbital work vehicle that achieves both avoidance of interference between the outrigger device 4 and the track traveling device 2, jack support when storing the beam on the track, and jack support on the road.

  Further, the track-and-work vehicle 1 according to the second aspect of the present invention is configured such that a base 31 that is a constituent member of the crane device 3 and the outrigger device 4 is tilted, the iron wheel 22 is located at the retracted position, and the inner beam If 41 is located in the storage position, the tilt of the base 31 is restricted. For this reason, even if the operation of tilting the base 31 is performed while the inner beam 41 is kept in the retracted position on the road, the interference between the outrigger device 4 and the track traveling device 2 is avoided, and the device constituting the track work vehicle 1; Damage to members and the like can be prevented beforehand. On the other hand, if either the steel wheel 22 or the inner beam 41 is extended, the tilt of the base 31 is permitted, and the tilt of the base 31 is always permitted on the track. The crane device 3 can be held in a horizontal posture regardless of the overhanging state. Even on the road, the inner beam 41 is extended to at least an intermediate position, whereby the tilting of the base 31 is permitted and the horizontal posture of the crane device 3 can be secured. As described above, according to this configuration, it is possible to avoid interference between the outrigger device 4 and the track traveling device 2 that may be caused by tilting the base 31, and it is possible to effectively perform horizontal correction on the cant on the track. A railroad work vehicle can be provided.

  Further, in the present embodiment, even if the base 31 is tilted to the allowable tilt angle and the inner post 41 is extended downward with the inner beam 41 extended to the intermediate position, the outrigger device 4 and the track traveling device 2 interfere with each other. The allowable tilt angle and the intermediate position are set so as not to cause a failure. Thereby, the interference between the outrigger device 4 and the track traveling device 2 is reliably avoided by the determination control performed by the controller 100.

  Although the first embodiment of the present invention has been described above, the track-and-rail work vehicle according to the first and second aspects of the present invention is not necessarily limited to the above configuration. For example, in the above-described configuration, the extension state of the jack 45 by the inner beam 41 is configured to be set in three stages. However, the jack 45 may be configured to be set in four stages or more. You may comprise so that an operator can set the overhang | projection amount. In this way, when the extension amount of the jack 45 by the inner beam 41 is configured in a multistage or stepless manner, the base 31 is allowed to tilt when the arrangement position of the track traveling device 2 and the allowable tilt angle of the base 31 are determined. Even if the inner post 47 is extended downward while being tilted to an angle, an allowable overhang amount of the inner beam 41 that can avoid interference between the outrigger device 4 and the track traveling device 2 can be obtained. It is preferable that the inner post 47 is allowed to extend downward and the base 31 is tilted when it is detected that the beam 41 is extended. Thereby, it is possible to reliably avoid interference between the outrigger device 4 and the track traveling device 2 regardless of the stage setting of the projecting state of the inner beam 41. In the above configuration, an intermediate position between the storage position and the total extension position is set as the allowable overhang amount.

  Further, a ground sensor 99 that detects the grounding of the jack 45 is connected to the controller 100 so that a grounding detection signal indicating that the jack 45 is grounded can be output to the controller 100. If output, the first control valve V <b> 1 may be controlled so that the reduction movement of the iron wheel elevating cylinder 71 is restricted regardless of the operation of the iron wheel overhanging operation lever 81. Thereby, when the vehicle is on the track and the iron wheel 22 is located at the extended position, and the inner post 47 is extended downward while the inner beam 41 is located at the retracted position, the work is being performed. Even if the lever operation for retracting the iron wheel 22 is mistakenly performed, it is possible to avoid interference between the outrigger jack 4 in which the jack 45 is extended downward in the beam retracted posture and the track traveling device 2.

  In the track-and-rail work vehicle 1 of the first embodiment, the outrigger device 4 is disposed so that the jack 45 is positioned above the iron wheel 22 positioned at the retracted position. Here, a track work vehicle 1 ′ of the second embodiment in which the jack 45 is positioned above the iron wheel 22 located at the overhanging position and the outrigger device 4 is disposed will be described with reference to FIG. 5. In the track-and-work vehicle 1 ′ of the present embodiment, the schematic configuration of the track traveling device 2, the crane device 3, and the outrigger device 4 is the same as that of the above-described embodiment illustrated in FIGS. 1 to 3.

  In the present embodiment, the base 31 that can be tilted by the operation of the tilt cylinder 74 is used as a common component for the crane device 3 and the outrigger device 4, and the crane device 3 and the outrigger device 4 are interlocked with each other. It is configured to tilt. Also in the track-and-rail work vehicle 1 ′ of the present embodiment, the iron wheel motor 72 is provided in the two front track traveling devices 2 and is configured to be able to travel on the track by front wheel drive. The two front track running devices 2 are provided on the rear side of the above embodiment. As shown in FIG. 5, the track-and-rail work vehicle 1 ′ having such a configuration is in a state where the jack 45 is positioned above the iron wheel 22 located at the overhanging position and the iron wheel 22 is located at the retracted position. The device 2 is located behind the outrigger device 4.

  The overhanging state of the jack 45 by the beam 40 can be set in three stages: a storage position, a total expansion / contraction position, and an intermediate position, as in the above embodiment. An iron wheel position sensor 291 that detects the position of the iron wheel 22 is connected to the controller 200. If the iron wheel 22 is located at the retracted position, an iron wheel storage detection signal is output from the iron wheel position sensor 291 to the controller 200. Further, an outrigger extension sensor 92 similar to that in the above embodiment is connected, and an outrigger extension detection signal similar to the above is output to the controller 200.

  The controller 200 according to the present embodiment is configured so that the extension movement of the jack extension cylinder 76 is regulated regardless of the operation of the jack extension operation lever 83 unless both the iron wheel storage detection signal and the outrigger extension detection signal are output. Then, the third control valve V3 is controlled. If at least one of the iron wheel storage detection signal and the outrigger extension detection signal is output, the third control valve V3 is electromagnetically driven in accordance with the operation of the jack expansion / contraction operation lever 83 to extend the jack expansion / contraction cylinder 76. Movement is allowed.

  If neither the iron wheel storage detection signal nor the outrigger extension detection signal is output, the controller 200 restricts the operation of the tilt cylinder 74 regardless of the operation of the tilt operation lever 84, and the base 31 is set to the horizontal position. The fourth control valve V4 is controlled so as to be held. On the other hand, if at least one of the iron wheel storage detection signal and the outrigger extension detection signal is output, the fourth control valve V4 is electromagnetically driven according to the operation of the tilt operation lever 84 and the operation of the tilt cylinder 74 is permitted. It has come to be.

  Therefore, if the vehicle is on the track and the iron wheel 22 is located at the extended position and the inner beam 41 is located at the retracted position, the iron wheel position sensor 291 and the outrigger Since none of the output sensors 92 outputs a detection signal, the controller 200 restricts the downward extension of the inner post 47, and the extension operation by the jack extension operation lever 83 is not reflected. In the same state, even if the tilt operation lever 84 is operated, the tilt of the base 31 is restricted by the controller 200 and the tilt operation by the tilt operation lever 84 is not reflected.

  Also in the track-and-work vehicle 1 ′ of the present embodiment according to the third aspect of the present invention in which the jack 45 is disposed above the overhang position of the iron wheel 22, the iron wheel 22 is located in the overhang position, and the inner beam If 41 is located in the storage position, the lower extension of the inner post 47 is restricted. For this reason, even if an operation of extending the inner post 47 downward is performed while keeping the inner beam 41 in the retracted position on the track, the downward extension of the inner post 47 is restricted by the controller 200, and the outrigger device 4 and the track traveling device are controlled. 2 can be avoided, and damage to devices, members, and the like constituting the railroad work vehicle 1 ′ can be prevented. On the other hand, when the iron wheel 22 is stored, the inner post 47 is allowed to extend downward, and the inner beam 41 can be used even on a narrow work site where the beam 40 cannot be satisfactorily extended on the road. The vehicle can be stably supported by extending the inner post 47 downward while being kept in the retracted position. Further, even if the inner beam 41 is extended to at least an intermediate position on the track, the inner post 47 can be extended downward to stably support the vehicle.

  Moreover, in this embodiment which concerns on 4th this invention, it is comprised so that the outrigger apparatus 4 may also incline as the crane apparatus 3 inclines, the iron ring 22 is located in an overhanging position, and the inner beam 41 is If it is located in the retracted position, the tilt of the base 31 is restricted. For this reason, it is possible to avoid interference between the outrigger device 4 and the track traveling device 2 that may be caused by tilting the base 31 while the inner beam 41 is kept at the retracted position on the track.

  In the third and fourth embodiments of the present invention, the inner beam 41 can be extended in a multistage or stepless manner, and the extension amount of the inner beam 41 is a predetermined allowable tension. If it is less than the protruding amount, the inner post 47 may be configured to be restricted from extending downward and tilting the base 31.

  In the first and second embodiments, if the extension amount of the inner beam 41 is equal to or less than a predetermined extension amount that is predetermined based on the allowable tilt angle, the downward extension of the inner post 47 and the tilt of the base 31 are restricted. However, the regulation may be performed according to the inclination angle of the vehicle body 10 and the amount of protrusion of the inner beam 41. Here, a description will be given of a railroad work vehicle 1 "configured to be modified so as to include the tilt angle sensor 393 shown in FIG. 4. Note that a schematic configuration of the railroad work vehicle 1" of the present modified configuration is illustrated in FIG. It is the same as that of 2nd Embodiment shown to 2,3,5.

  The tilt angle sensor 393 is provided at an appropriate location of the vehicle body 10 and can detect the tilt angle of the vehicle body 10 with respect to the left-right direction. A tilt angle detection signal indicating the tilt angle of the vehicle body 10 is output from the tilt angle sensor 393 to the controller 300. In addition, the outrigger device 4 of the present configuration is configured so that the inner beam 41 can be extended stepwise to the side, and the outrigger extension sensor 392 can detect the amount of extension of the inner beam 41. An outrigger extension amount detection signal indicating the extension amount of the inner beam 41 is output from the outrigger extension sensor 392 to the controller 300.

  Such a railroad work vehicle 1 ″ can hold the crane device 3 in a horizontal posture by tilting the base 31 in an opposite direction to the tilt by an angle corresponding to the tilt angle detected by the tilt angle sensor 393. Here, the controller 300 includes information on the arrangement positions of the track traveling device 2 and the jack 45, such as the distance in the left-right direction between the track traveling device 2 and the jack 45 when the vehicle body 10 is in contact with the horizontal plane. In addition, the allowable overhang amount of the inner beam 41 where the jack 45 is not positioned above the iron wheel 22 when the base 31 is tilted is stored in advance corresponding to the tilt angle. This allowable overhang amount is set to be small when the tilt angle is small and to be large when the tilt angle is large.

  In the state where the iron wheel 22 is located at the retracted position and the iron wheel overhanging detection signal is not output from the iron wheel position sensor 291, the controller 300 of this configuration form uses the inclination angle detection signal output from the inclination angle sensor 393. The allowable overhang amount corresponding to the detected tilt angle is derived, and the overhang amount of the inner beam 41 detected based on the outrigger overhang detection signal output from the outrigger overhang sensor 392 is derived. A comparison is made as to whether or not the overhang amount exceeds the allowable overhang amount. If the extension amount of the inner beam 41 is less than the allowable extension as a result of the comparison determination, the inner post 47 is extended downward as the extension amount at which the jack 45 is positioned above the iron wheel 22 positioned at the extension position. Are now regulated. If the overhang exceeds the allowable overhang, the inner post 47 is allowed to extend downward. On the other hand, if the iron wheel 22 is located at the overhanging position and the iron wheel overhang detection signal is output from the iron wheel position sensor 291, the inner post 47 is allowed to extend downward regardless of the state of the inner beam 41 overhanging. Is done.

  According to such a configuration, even when the iron wheel 22 is located at the overhanging position and the track-and-rail work vehicle 1 "is on the track and is stopped at the curved portion where the cant is set, The allowable extension amount of the inner beam 41 to be extended in order to avoid interference when the base 31 is tilted to ensure the horizontal posture of the crane device 3 with respect to the cant is stored in the controller 300 in advance. If the overhanging amount of 41 is less than the allowable overhanging amount, the lower extension of the inner post 47 is restricted. With such a configuration, the jack 45 is disposed above the overhanging position of the iron wheel 22. Even if the track work vehicle 1 ″ is configured, the interference between the outrigger device 4 and the track traveling device 2 that may be caused by extending the inner post 47 downward after performing cant correction is reduced. It can be. Further, since at least the allowable amount of extension of the inner beam 41 to be extended is set corresponding to the inclination angle, for example, it is not necessary to extend the inner beam 41 excessively on a gentle slope, and the extension of the inner beam 41 is not required. The amount can be set flexibly.

  In each of the above embodiments, the inner beam 41 is not extended more than a predetermined amount synchronously with the restriction of the extension of the inner post 47 by the controllers 100, 200, 300, or the iron ring 22 is extended. A display panel may be disposed in the vicinity of the operation unit 80 to display that the inner post 47 cannot be extended downward due to the fact that it is not located at the exit (storage) position and notify the operator. In addition to the display panel, an alarm buzzer, an alarm lamp, or the like that is controlled to operate in synchronization with the extension restriction of the inner post 47 may be provided. The controllers 100, 200, and 300 allow the operation of the inner post 47 and the tilt cylinder 74 based on the detection signals output from the wheel position sensors 91, 291, the outrigger extension sensors 92 and 392, and the tilt angle sensor 393. It is configured to regulate. Therefore, when a failure or disconnection of the iron wheel position sensors 91, 291 or the outrigger extension sensors 92, 392, and the inclination angle sensor 393 occurs, the display panel, alarm buzzer, alarm lamp indicate that such an abnormality has occurred. Etc., the operator may be notified.

  The iron wheel position sensor 91 applied to the first embodiment is configured to output a detection signal when the iron wheel 22 is located at the extended position, and is applied to the second embodiment and the modified configuration. Although the iron wheel position sensor 291 is configured to output a detection signal when the iron wheel 22 is located at the retracted position, the present invention is not necessarily limited to this form, and the controller 100, 200, 300 performs the restriction. Any iron wheel position sensor may be applied in each embodiment as long as it is configured.

  Moreover, in each said form, although the crane apparatus 3 was illustrated as an operation | work apparatus mounted by the track-and-rail work vehicle 1,1 ', 1 ", it is not necessarily restricted to this, The operation | work which has the same structure as the outrigger apparatus 4 Any device can be applied in the same manner, and the same effect can be obtained.

It is a side view which shows the track-and-rail work vehicle of 1st Embodiment. (A) is a side view and (b) is a front view for showing the track running device of the above-mentioned track and land working vehicle. It is a rear view which shows the crane apparatus of the said railroad work vehicle. It is a block diagram which shows the structure which concerns on the controller of the said railroad work vehicle. It is a side view which shows the railroad work vehicle of 2nd Embodiment and a change structure form.

Explanation of symbols

1,1 ', 1 "Track-and-rail work vehicle 2 Track traveling device 3 Crane device 4 Outrigger device 10 Car body 11 Tire wheel (wheel traveling wheel)
22 Iron wheel (Railway wheel)
91,291 Iron wheel position sensor (wheel position detection means)
92,392 Outrigger extension sensor (outrigger extension detection means)
393 Tilt angle sensor (Tilt angle detecting means)
100, 200, 300 controller (jack extension regulating means, tilt regulating means)

Claims (4)

A vehicle body that can travel on the road and on the track with road traveling wheels and track traveling wheels on the front, rear, left and right,
The track traveling wheel is held movably between a retracted position moved upward and an extended position projecting downward, and the road traveling wheel is placed at the retracted position when the road travels. A track traveling device that is grounded and places the track traveling wheel on the track by positioning the track traveling wheel at the extended position during the track traveling;
The lower side includes a jack unit that can extend and contract in the vertical direction of the vehicle body, and an outrigger device that includes a beam unit that supports the jack unit so as to extend outward in the vehicle width direction from the left and right sides of the vehicle body. In the track-and-rail work vehicle,
The jack means is located above the orbital wheel located in the retracted position;
Wheel position detection means for detecting whether the wheel for orbital travel is located at the overhang position or the retracted position;
Outrigger overhang detection means for detecting a state of overhang of the jack means outward in the vehicle width direction by the beam means;
The wheel position detecting means detects that the track running wheel is located at the retracted position, and the outrigger extension detecting means sets the amount of extension of the jack means outward in the vehicle width direction to a predetermined amount. A track-and-rail work vehicle comprising: a jack extension restricting means for restricting the downward extension of the jack means when it is detected as less than A vehicle body that can travel on the road and on the track with road traveling wheels and track traveling wheels on the front, rear, left and right,
The track traveling wheel is held movably between a retracted position moved upward and an extended position projecting downward, and the road traveling wheel is placed at the retracted position when the road travels. A track traveling device that is grounded and places the track traveling wheel on the track by positioning the track traveling wheel at the extended position during the track traveling;
The lower side includes a jack unit that can extend and contract in the vertical direction of the vehicle body, and an outrigger device that includes a beam unit that supports the jack unit so as to extend outward in the vehicle width direction from the left and right sides of the vehicle body. In the track-and-rail work vehicle,
The jack means is located above the orbital wheel located in the retracted position;
The beam means is configured to be tiltable in a vertical plane in the vehicle width direction with respect to the vehicle body,
Wheel position detection means for detecting whether the wheel for orbital travel is located at the overhang position or the retracted position;
Outrigger overhang detection means for detecting a state in which the jack means projects outward in the vehicle width direction by the beam means;
The wheel position detecting means detects that the track running wheel is located at the retracted position, and the outrigger extension detecting means sets the amount of extension of the jack means outward in the vehicle width direction to a predetermined amount. A railroad work vehicle comprising: tilting restricting means for restricting tilting of the beam means when it is detected that the distance is less than A vehicle body that can travel on the road and on the track with road traveling wheels and track traveling wheels on the front, rear, left and right,
The track traveling wheel is held movably between a retracted position moved upward and an extended position projecting downward, and the road traveling wheel is placed at the retracted position when the road travels. A track traveling device that is grounded and places the track traveling wheel on the track by positioning the track traveling wheel at the extended position during the track traveling;
The lower side includes a jack unit that can extend and contract in the vertical direction of the vehicle body, and an outrigger device that includes a beam unit that supports the jack unit so as to extend outward in the vehicle width direction from the left and right sides of the vehicle body. In the track-and-rail work vehicle,
The jack means is located above the orbital wheel located at the extended position;
Wheel position detection means for detecting whether the wheel for orbital travel is located at the overhang position or the retracted position;
Outrigger overhang detection means for detecting a state in which the jack means projects outward in the vehicle width direction by the beam means;
The wheel position detecting means detects that the track running wheel is located at the extended position, and the outrigger extension detecting means determines the amount of extension of the jack means outward in the vehicle width direction. A railroad work vehicle comprising: a jack extension regulating unit that regulates a downward extension of the jack unit when it is detected that the amount is less than a fixed amount. A vehicle body that can travel on the road and on the track with road traveling wheels and track traveling wheels on the front, rear, left and right,
The track traveling wheel is held movably between a retracted position moved upward and an extended position projecting downward, and the road traveling wheel is placed at the retracted position when the road travels. A track traveling device that is grounded and places the track traveling wheel on the track by positioning the track traveling wheel at the extended position during the track traveling;
The lower side includes a jack unit that can extend and contract in the vertical direction of the vehicle body, and an outrigger device that includes a beam unit that supports the jack unit so as to extend outward in the vehicle width direction from the left and right sides of the vehicle body. In a railroad work vehicle
The jack means is located above the orbital wheel located at the extended position;
The beam means is configured to be tiltable in a vertical plane in the vehicle width direction with respect to the vehicle body,
Wheel position detection means for detecting whether the wheel for orbital travel is located in the overhang position or the retracted position;
Outrigger overhang detection means for detecting a state of overhang of the jack means outward in the vehicle width direction by the beam means;
The wheel position detecting means detects that the track running wheel is located at the extended position, and the outrigger extension detecting means determines the amount of extension of the jack means outward in the vehicle width direction. An orbital work vehicle comprising: tilting restricting means for restricting tilting of the beam means when it is detected that the amount is less than a fixed amount.

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