JP2013193656A - Emergency rolling method of steel wheel in working vehicle traveling on both track and road, and device for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To move a working vehicle on its own on emergency to a position (crossing, in general) where change from a traveling position on a railroad rail to a traveling position on a general road can be performed.SOLUTION: In a working vehicle traveling on both tracks and roads, tire wheels 2 and steel wheels 4 are rolled by different drive sources, respectively. To a front pair and a rear pair of the steel wheels 4 positioned on a railroad rail R so as to freely roll, a sprocket coaxially positioned on the same axis as the axle of the steel wheels is attached. Also, a driving sprocket 10 for spreading a chain between that sprocket is attached to the tire wheels 2 for drive that are positioned above the steel wheels 4 on a railroad rail R so as to be rotated coaxially with the axle of the tire wheels 2, and attaching work and a work of spreading the chain 11 between the respective sprockets are performed one after another. Thereafter, the tire wheels 2 for drive are driven by a drive unit of the tire wheels 2 and the steel wheels 4 are turned, and traveling to a desired position on the railroad rail is performed.

Description

  The present invention includes a pair of front and rear tire wheels for traveling on the road and iron wheels for traveling on railroad rails, the tire wheels are driven by an engine such as gasoline, and the iron wheels drive a hydraulic device that does not generate exhaust gas. Dealing with the impossibility of rolling (running) on railroad rails caused by a failure of the iron wheel drive device of an amphibious work vehicle comprising tire wheels and iron wheels having different drive sources. The present invention relates to an emergency rolling method of an iron wheel in a road-rail work vehicle and an apparatus therefor.

  When traveling on a general road, a pair of front and rear tire wheels having a rear wheel side tire wheel as a driving wheel is used, and when moving on a railroad rail, an iron wheel arranged above the tire wheel is used as the tire wheel. An amphibious work vehicle is known which is positioned lower and applied to traveling on a railroad rail using a rear wheel side iron wheel as a driving wheel.

  In the above work vehicle, the tire wheel used for road use and the iron wheel used for railway rail use separate drive sources, and the tire wheel drive source is composed of an engine such as gasoline or diesel. Generally, a hydraulic device is used as a drive source (for example, Patent Document 1).

JP 2001-88521 A

  When driving on railroad rails, if the hydraulic system that drives the iron wheels (generally, on the rear side) fails, it cannot move at that location, and sometimes it takes time to recover from the failure of the hydraulic system. In the worst case, it may cause delays in the first train (railway construction is done at night).

  In such a situation, the present invention enables a work vehicle to move on an emergency basis by itself from a traveling position on a railroad rail to a position where it can be converted to a traveling position on a general road (generally, a railroad crossing). This was created in order to avoid the stuck state of amphibious workers on railroad rails.

  When traveling on a general road, a pair of front and rear tire wheels having a rear wheel side tire wheel as a driving wheel is used, and when moving on a railroad rail, an iron wheel arranged above the tire wheel is used as the tire wheel. The track is located lower and applied to traveling on railroad rails using the rear wheel as the driving wheel, and the tire wheel and the iron wheel roll with different driving sources. A dual-purpose work vehicle, wherein a driven sprocket positioned coaxially with an axle of the iron wheel is provided on any one of the pair of front and rear iron wheels positioned on the railroad rail so as to roll freely, and the driven sprocket A drive sprocket that stretches a chain between the two wheels is attached to a drive tire wheel positioned above the iron wheel on the railroad rail so as to rotate coaxially with the axle of the tire wheel. And the work of stretching the chain between the sprockets. After that, the driving tire wheel is driven by the tire wheel driving device to rotate the iron wheel. And traveling to a desired position on the rail. In addition, as a device, when traveling on a general road, a pair of front and rear tire wheels having a rear wheel side tire wheel as a driving wheel was used, and when moving on a railroad rail, it was arranged above the tire wheel. The iron wheel is positioned below the tire wheel, and the rear wheel side iron wheel is used as a driving wheel for traveling on the railroad rail. Moreover, the tire wheel and the iron wheel are rotated with different driving sources. A road-rail work vehicle adapted to move, wherein the tire wheel as a driving wheel and the pair of front and rear iron wheels are detachably assembled with a sprocket coaxially with each axle, The basic means is that a chain is stretched around the sprocket.

  According to the method of the present invention, even if an iron wheel on a railroad rail cannot be rolled due to a failure of a driving device, the wheel is moved on the railroad rail using the driving device on the tire wheel side. Therefore, the work vehicle can be urgently moved by one's own power to easily avoid the stuck state on the railway rail of the worker due to the failure of the driving device on the iron wheel side. Further, according to the apparatus of the present invention, the driving force on the tire wheel side can be transmitted to the iron wheel side by a simple transmission means called a sprocket so that the work vehicle can be easily moved to a desired position.

A simplified front view of a road-rail work vehicle. The partially expanded view of FIG. FIG. 2 is a partially cutaway side view of FIG. 1. FIG. 4 is a partially enlarged view of FIG. 3. The front view of the rolling transmission material for tire wheels. The side view of the rolling transmission material for tire wheels. The front view of the rolling transmission material for iron wheels. The side view of the rolling transmission material for iron wheels.

  The drawings show an embodiment of an road-rail work vehicle to which an iron wheel emergency rolling method and apparatus for use in an road-rail work vehicle according to the present invention are applied. A so-called truck-type work vehicle equipped with a pair of front and rear tire wheels 1 and 2 and a pair of front and rear iron wheels 3 and 4 for traveling on a railroad rail. The traveling direction can be changed back and forth by using the omitted turntable.

  The front and rear iron wheels 3 and 4 are configured such that the wheel frames 301 and 401 are interlocked with each other so as to swing up and down to change the height position. When the vehicle is running on the road using the tire wheels 1 and 2 and is in the lower position, the treads 3a and 4a are in contact with the rail R (the iron wheels 3 and 4 are connected to the rail). The vehicle travels on the rail R using the iron wheels 3 and 4. The iron wheels 3 and 4 are configured such that the rear wheel-side iron wheel 4 is used as a driving wheel and the iron wheels 3 and 4 travel on the rail R. The outer wheels are coaxially arranged (not shown). And an inner ring (not shown) are configured to be tightened with a tightening bolt 5 and a nut 6 disposed so as to surround the axles 302 and 402.

  The iron wheels 3 and 4 are rear wheel 4 that is a drive wheel. The LPG engine is equipped with a hydraulic pump and a generator, and the hydraulic pump is connected to a drive hydraulic motor. It operates and rolls by driving (not shown).

  The iron wheels 3 and 4 may have the front wheels as drive wheels, and the drive means (drive device or drive source) is not limited to that of the embodiment. The object of the present invention can be achieved if it is different from the one on the second side (the embodiment is a gasoline engine).

  The tire wheels 1 and 2 are hub bolts that are juxtaposed so as to surround the shaft 202 on the hub 2a (as shown in FIG. 4, only one of the rear wheels 2 and 2 as driving wheels is shown). A nut 8 is screwed to 7 and a wheel 2b is attached, and a tire 2c is assembled to the hub 2a. The embodiment is configured to roll by a tire wheel drive device (not shown) equipped with a gasoline engine. It is.

  The road-rail work vehicle A according to the embodiment moves to the crossing position relatively close to the work site by the rolling of the tire wheels 1 and 2 for roads driven by the engine, and is not limited to the crossing position. In short, if there is a space where the road and rail can be relocated without any problem, there will be no inconvenience even on the rail side), the iron wheels 3 and 4 are lowered and placed on the rail R (this When the wheel 4 is lifted from the road bed) and the rear wheel 4 is driven by driving the iron wheel drive device, the iron wheels 3 and 4 are turned. The work vehicle A moves to a predetermined place.

  1 to 4 show an operation when the iron wheel drive device can roll the iron wheel 4 due to hydraulic leakage or pipe damage, but cannot operate (roll) for other reasons. The figure shows the state of return (return) from the crossing of the vehicle A (the place where the steel wheels 3 and 4 can be converted to the tire wheels 1 and 2).

  That is, in order to cope with a failure of the iron wheel drive device, one tire wheel 2 of the pair of tire wheels 2 and 2 of the rear wheel, which is a drive tire wheel, and one wheel of the drive iron wheels 4 and 4. 4, the sprockets 9 and 10 are attached, and the chain 11 is stretched over the sprockets 9 and 10 to obtain a travelable state of rolling on the rail rail R of the steel wheels 3 and 4, and the tire wheels mounted on the work vehicle The driving force of the vehicle drive device is transmitted to the rear wheel side iron wheel 4 through the sprockets 9 and 10 and the chain 11 stretched between them, and is rotated to roll on the rail R. The chain 11 and the sprockets 9 and 10 are removed, and then the rear wheel side one tire wheel 2 and the rear wheel side iron wheel 4 are assembled. Return to the original state, iron Arranged wheels 3,4 in the upper position the tire wheel 1, with the tire wheel 1, 2, road work vehicle A is performed.

  The sprockets 9 and 10 of the embodiment constitute constituent members of the rolling transmission material 12 for tire wheels or the rolling transmission material 13 for iron wheels, and each of the rolling transmission materials 12 and 13 has an appropriate length. At the base ends of the cylindrical main cylinders 12a and 13a, there are provided flange pieces 12b and 13b for assembling provided with assembly holes 12c and 13c, and cylindrical main cylinders are provided at the distal ends of the main cylinders 12a and 13a. A pair of the sprockets 9, 9.10, 10 are provided so as to protrude from the main cylinders 12a, 13a in a flange shape so as to be arranged along the axes of 12a, 13a.

  The rolling transmission material 12 for tire wheels provided with sprockets 9 and 9 and the rolling transmission material 13 for iron wheels similarly provided with sprockets 10 and 10 have different lengths of main cylinders 12a and 13a. However, the remaining points have substantially the same shape, and the sprockets 9 and 10 are attached to the outer side of the wheels 2 and 4 in relation to the tire wheels 2 or the iron wheels 4 when assembled to the tire wheels 2 or the iron wheels 4. It is considered that the chain 11 is arranged so as to move in a straight line between the sprockets 9 and 10, and the work vehicle A of the embodiment is based on the steel wheels 3 and 4. Since the tire wheels 1 and 2 are located on the outer side (in the vehicle width direction), the rolling transmission material 13 on the iron wheel 4 side (main cylinder 13a) from the rolling transmission material 12 on the tire wheel 2 side (main cylinder 12a). ) Is longer, and the sprockets 9 and 10 are Zhang set of over emissions 11 are then to be carried out without hindrance.

  The assembly of the rolling transmission material 12 for the tire wheel and the rolling transmission material 13 for the iron wheel to the tire wheel 2 and the iron wheel 4 is performed by assembling the transmission materials 12 and 13 to the tire wheel 2 and the iron wheel 4. It is performed using the bolts that have been used to attach the components of the tire wheel 2 and the iron wheel 4 that were used before attaching, and in the embodiment, the wheel 2b using the hub bolt 7 that fastened the wheel 2b and the hub 2a. At the same time, it is fastened to the hub 2a. In the case of the iron wheel 4, the bolt 5 and the nut 6 which are fastened to the outer ring and the inner ring are used.

  In short, the rolling transmission members 12 and 13 may be assembled to the tire wheel 2 or the like by using existing bolts on the tire wheel 2 or the iron wheel 4.

  Incidentally, in the embodiment, the transmission members 12 and 13 are directly assembled to the tire wheel 2 or the like, but may be assembled to a wheel body that transmits rotational force to the tire wheel 2 or the like. Wheels and the like also include this point (in short, the rotational force by the driving device for tire wheels may be transmitted to the iron wheels via the sprocket).

  When the rolling of the iron wheel on the rail R becomes difficult due to the failure of the driving device on the iron wheel 4 side, the nuts 6 and 8 are removed from the bolts 5 and 7, and the rolling transmission material 12 for tire wheels is removed. Is attached to the tire wheel 2 by being superposed on the tire wheel 2 at the flange 12b and tightened with the bolt 7 and the nut 8, and the rolling transmission material 13 for the iron wheel is also superposed on the iron wheel 4 at the flange 13b. The bolt 5 and the nut 6 are tightened, and the tightening operation and the operation of tensioning the chain 11 between the sprockets 9 and 10 are performed in succession, whereby the tire driving device side on the tire wheel 2 side of the work vehicle A is driven as a drive source. A running state using rolling of the iron wheel 4 is prepared, and when the tire driving device is operated in this state, the tire wheel 2 as a driving wheel rolls in a floating state. As a result of the rolling, the chain 11 moves between the sprockets 9 and 10 and rotates the sprocket 10 on the iron wheel 4 side. As the sprocket 10 rotates, the iron wheel 4 rolls on the rail R The work vehicle A can be moved to a predetermined position along the rail R.

  In the embodiment, the sprockets 9 and 10 are used as components of the rolling transmission material 12 for tire wheels or the rolling transmission material 13 for iron wheels. However, the sprockets 9 and 10 are not necessarily limited to the illustrated form. .

  Incidentally, the rolling transmission material 12 for tire wheels and the rolling transmission material 13 for iron wheels have a pair of sprockets 9, 9.10, 10 at the tip (one end) of cylindrical main cylinders 12a, 13a. 12a and 13a are arranged side by side in the axial direction, and the flanges 12b and 13b are provided at the other ends of the main cylinders 12a and 13a. The main cylinder 12a of the rolling transmission material 12 for a tire wheel is provided. When the main cylinder 13a of the rolling transmission material 13 for the iron wheel is lengthened and the transmission materials 12 and 13 are attached to the tire wheel 2 and the iron wheel 4 at the flange pieces 12b and 13b, the transmission materials 12 and 13 are provided. The sprockets 9 and 10 rotate on the same straight line (is on the same surface).

  The flange pieces 12b and 13b are formed of non-circular frontal flower-shaped plate-like pieces in which convex portions 120b and 130b and concave portions 121b and 131b are alternately arranged in the circumferential direction, and the bolts 7 are formed on the convex portions 120b and 130b. , 5 is provided, and the bolts 7 or 5 on the tire wheel 2 or iron wheel 4 side are provided in the assembly holes 12c, 12c, 13c, 13c and the recesses 121b, 131b. In the recesses 121b and 131b, the nuts 8 and 6 screwed into the bolts 7 and 5 are wide enough to be engaged therewith.

  In addition, although the road-rail work vehicle is generally provided with iron wheels on the inner side of the tire wheels as in the embodiment, the present invention can also be applied in the opposite case. Further, in the case of the embodiment, the tire wheel is directly connected to the tire wheel, but the tire wheel may be connected to a component that rotates coaxially with the iron wheel. Also includes “parts”.

1, 2 Tire wheel 3, 4 Iron wheel 5 Tightening bolt 6 Nut 7 Hub bolt 8 Nut 9, 10 Sprocket 11 Chain 302, 402 Axle

Claims (5)

  When traveling on a general road, a pair of front and rear tire wheels having a rear wheel side tire wheel as a driving wheel is used, and when moving on a railroad rail, an iron wheel arranged above the tire wheel is used as the tire wheel. The track is located lower and applied to traveling on railroad rails using the rear wheel as the driving wheel, and the tire wheel and the iron wheel roll with different driving sources. A dual-purpose work vehicle, wherein a driven sprocket positioned coaxially with an axle of the iron wheel is provided on any one of the pair of front and rear iron wheels positioned on the railroad rail so as to roll freely, and the driven sprocket A drive sprocket that stretches a chain between the two wheels is attached to a drive tire wheel positioned above the iron wheel on the railroad rail so as to rotate coaxially with the axle of the tire wheel. And the work of stretching the chain between the sprockets. After that, the driving tire wheel is driven by the tire wheel driving device to rotate the iron wheel. An emergency rolling method of an iron wheel in a road-rail work vehicle, characterized in that the vehicle travels to a desired position on a railroad rail.   When traveling on a general road, a pair of front and rear tire wheels having a rear wheel side tire wheel as a driving wheel is used, and when moving on a railroad rail, an iron wheel arranged above the tire wheel is used as the tire wheel. The track is located lower and applied to traveling on railroad rails using the rear wheel as the driving wheel, and the tire wheel and the iron wheel roll with different driving sources. A dual-purpose work vehicle, in which a sprocket is detachably assembled to one of the tire wheel as a driving wheel and one of the pair of front and rear iron wheels coaxially with each axle, and a chain is stretched on the sprocket. An emergency rolling device for iron wheels in a road-rail work vehicle.   A sprocket at the tip of the cylindrical main body and a flange piece at the base end are provided coaxially with the cylindrical main body to constitute a rolling transmission material for tire wheels and a transmission auxiliary material for iron wheels, and the rolling transmission 3. The material according to claim 2, wherein a material is bolted to each of the flange pieces by an existing bolt of a tire wheel and a steel wheel on the drive wheel side, and a chain is stretched by arranging each sprocket on the same surface. An emergency rolling device for iron wheels in a road-rail work vehicle.   The flange piece is formed of a non-circular plate in which convex portions and concave portions are alternately arranged in the circumferential direction, and the convex portions are provided with through holes for bolts to be attached to a tire wheel or an iron wheel, and the concave portions between the convex portions are formed as described above. The emergency rolling device for an iron wheel in an amphibious work vehicle according to claim 3, wherein a head of a bolt fastened to a tire wheel or an iron wheel or a nut engaged with the bolt is engaged.   A plurality of sprockets are provided for each of the rolling transmission material for the tire wheel and the rolling transmission material for the steel wheel, and a chain is stretched between the two sprockets located on the same plane. The emergency rolling device of the iron wheel in the amphibious work vehicle according to any one of claims 2 to 4.

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