JP3162597U - Rotating base rotation mechanism of railroad vehicle - Google Patents

Abstract

The present invention relates to a railroad vehicle that can travel on a track and a road, and provides a swivel base rotating mechanism that prevents a personal injury from occurring by driving a revolving plate for rotating the railroad vehicle on a railroad crossing by hydraulic pressure. SOLUTION: It is composed of lifting legs 43 and 44 that are fixed to the left and right of the center of a vehicle body 22 of a track and land vehicle and that can lift the vehicle body 22 and a turning portion 74 that is connected to the lower ends of both the lifting legs 43 and 44. In the up-and-down turning mechanism 41, a turning plate 65 provided on the lower surface of the turning portion 74 is rotated by a hydraulic motor 58 so that the entire rail car lifted from the road can be rotated on the railroad crossing. [Selection] Figure 4

Description

  This device relates to a vehicle (railway vehicle) that can travel on both a track and a road, and has a structure in which a tire for traveling on the road and an iron wheel for traveling on the track are mounted in the same direction. The present invention relates to a swivel rotating mechanism for a rail-road vehicle including a swivel for turning a vehicle body at the time of transfer from a track to a track or from a track to a road.

  A track-and-rail vehicle is a work vehicle that is used when maintenance and inspection of various facilities provided along a railroad track, and has a function of traveling on both roads and tracks. It can travel on the track and move quickly to the work site, and at the same time, when not working, it can move on the public road so as not to get off the track and prevent the train from traveling. The tires and iron wheels of the track-and-rail vehicle are directed in the same direction from the viewpoint of the relationship between the vehicle body length and the vehicle body width, the relationship of the driver seat arrangement, and the wheel drive mechanism.

  When a track-and-rail vehicle having such a structure is transferred from a road (public road) to a track, it is performed on a railroad crossing where the track and the road intersect. This is because the railway crosses the public road up to the level crossing closest to the work site along the track, and runs on the public road. Conversely, to change from a track to a road, it is possible to switch from an iron wheel to a tire at the same level crossing. By switching in this way, it is possible to make the railroad vehicle run on the track only during the idle time when the train is not running, and to remove the railroad vehicle from the track in a short time during train operation. As well as not disturbing the train operation.

  When switching between a road and a track in a track-and-rail vehicle, as described above, since the tire and the iron wheel are oriented in the same direction, it is necessary to turn the entire vehicle body at a right angle on the railroad crossing. For this purpose, a lifting / lowering rotating mechanism capable of performing two actions of turning and raising / lowering is provided at the lower center of the vehicle body of the track-and-rail vehicle. In the general structure of this lifting and rotating mechanism, a plurality of lifting legs incorporating a hydraulic cylinder or the like are fixed to the vehicle body, and a turning device is attached to the lower end of each lifting leg. The swivel device is composed of a horizontal base plate fixed to the lifting leg and a swivel plate rotatably connected to the lower surface of the base plate. In this device, the swivel plate of the swivel device is pushed down at the center of the railroad crossing by the lifting legs, the entire railroad vehicle is lifted, and then the railroad vehicle can be rotated horizontally by rotating the base plate with respect to the swivel plate. it can. When the railway vehicle is rotated at a substantially right angle with respect to the road, the iron wheels can be aligned in parallel with the direction of the track, and in this state, the iron wheels are lowered from the vehicle body and brought into contact with the track. Then, when the lifting leg is reduced and the revolving plate is raised, the vehicle body descends relatively, so that the track and the steel wheel are fitted together. And a track-and-rail vehicle can drive | work a track | truck by rotating an iron wheel with motive power, such as an engine. By such a procedure, it was possible to transfer from the road to the track.

  In such a procedure, the railroad car can be transferred from the road to the track or from the track to the road at the railroad crossing. Needed to align the swivel plate. In this alignment operation, the railcar is stopped at the level crossing, the turning plate is rotated with respect to the base plate, and the turning plate is adjusted to a position orthogonal to the track. If the swivel plate is orthogonal to the track, you can push the lifting leg down to match the center axis of the track with the center of the track regardless of the position of the tracked vehicle. The track and the iron wheel can be set to be parallel.

  Conventionally, the relative positioning of the swivel plate and the track has been manually performed. That is, the rotating plate is rotated using the limbs of the worker, or a long rod is hooked on the rotating plate and rotated. In such alignment work, the worker's body enters the lower part of the vehicle body, causing an accident. There has been a demand for the development of a mechanism that can rotate the swivel plate and finely adjust the angular position without an operator entering the lower part of the vehicle body.

  An object of the present invention is to arrange a hydraulic motor on the base plate so that the swivel plate can be rotated by hydraulic pressure, thereby preventing accidents of workers and improving the alignment work.

  The turning-type rail vehicle according to claim 1 of the present application can selectively run on the track 10 and the roads 15 and 16 with the tires 23 and 24 and the iron wheels 33 and 34 pivotally supported on the lower surface of the vehicle body 22. In the track-and-rail vehicle 21 that has the function of lifting and rotating the vehicle body 22 to switch between the traveling of the track 10 and the roads 15 and 16, the hydraulic cylinders 49 and 50 that are fixed to the left and right of the center of the vehicle body 22 are installed. Lifting legs 43 and 44 that can lift the vehicle body 22 by expanding and contracting, a flat base plate 53 that is stretched substantially horizontally between the lower ends of both the lifting legs 43 and 44, and a lower surface of the base plate 53 A flat revolving plate 65 arranged so as to be rotatable in the horizontal direction, a driven internal gear 68 fixed to substantially the center of the revolving plate 65, and having a tooth surface on the inner periphery, and a base plate 53. Operated with pressure oil A hydraulic motor 58, is fixed to the output shaft of the hydraulic motor 58, and is configured the external teeth from meshing allowed drive gear 60. the driven internal gear 68.

  In the invention of claim 2, the hydraulic motor 58 is connected in parallel to the discharge side of the hydraulic pump 83 operated by the output of the engine and the discharge side of the manual pump 90 operated manually.

  According to the third aspect of the present invention, a switching valve 86 capable of switching to neutral, forward rotation, and reverse rotation is interposed between the discharge sides of the hydraulic motor 58, the hydraulic pump 83, and the manual pump 90.

  The invention of claim 4 has a three-way switching valve 85 connected to the discharge side of the hydraulic pump 83 and the manual pump 90, a hydraulic motor 58 connected to one output end of the three-way switching valve 85, and the other output end. Are connected to hydraulic cylinders 49, 50 housed in the lifting legs 43, 44.

  Since the present invention is configured as described above, conventionally, the adjustment work for making the swivel plate 65 coincide with the positions of the rails 11 and 12 can be performed by hydraulic pressure, and an operator enters the lower part of the vehicle body 22 of the rail vehicle 21, Since it is not necessary to rotate the swivel plate 65 using a long bar or the like, it is possible to prevent an accident from occurring.

JP 2006-142977 A JP 2004-32726 A JP 2002-29417 A JP 2001-315513 A JP-A-11-91324 Utility Model Registration No. 3044877 Utility Model Registration No. 3000344

It is a perspective view which shows the state where the track-and-rail vehicle by one Embodiment of this invention was located on a level crossing. It is the side view seen from the track side which shows the state where the rail vehicle according to one embodiment of the present invention was located on the railroad crossing. It is sectional drawing which cut | disconnected in the center of the vehicle body which shows the swivel base rotation mechanism of the track-and-rail vehicle by one Embodiment of this invention. It is the disassembled perspective view which decomposed | disassembled the principal part and decomposed | disassembled the structure of the swivel base rotating mechanism of the track and land vehicle by one Embodiment of this invention. 1 is a hydraulic circuit diagram showing a drive device for a swivel rotating mechanism of a rail vehicle according to an embodiment of the present invention. It is a side view which shows the state which lifted the track-and-rail vehicle by one Embodiment of this invention on a level crossing with a turntable rotation mechanism. It is a top view showing the state where the rail car according to one embodiment of the present invention was turned in the right angle direction while being lifted by the turntable rotating mechanism. It is a top view which shows the state which made the iron ring contact the rail by the front jack mechanism and the rear jack mechanism of the track-and-rail vehicle by one Embodiment of this invention. It is a top view which shows the state which can run on a rail by an iron wheel, reducing the swivel base rotation mechanism in the rail vehicle according to one embodiment of the present invention.

  Hereinafter, an embodiment of a swivel base rotating mechanism for a rail vehicle according to the present invention will be described with reference to the drawings. In the figure, a railroad crossing refers to a place where the track 10 and the roads 15 and 16 intersect, and the vehicle can travel on the roads 15 and 16 without being obstructed by the rails 11 and 12 on the track 10. It has become. In this figure, the track 10 is composed of a pair of rails 11 and 12 arranged at intervals, and both rails 11 and 12 are placed on a sleeper 13 installed at intervals on a crushed stone. ing. Roads 15 and 16 hardened with asphalt or concrete are arranged up to the sides of the rails 11 and 12 so as to be orthogonal to the track 10. In addition, an intermediate zone 17 hardened with asphalt or concrete is installed between the rails 11 and 12 and in the width of the roads 15 and 16, and the steps of the rails 11 and 12 prevent the passage of vehicles. I am trying not to do it. The rails 11 and 12, roads 15 and 16, and the intermediate zone 17 are designed so that the upper surfaces thereof are at substantially the same height so that the vehicle can travel smoothly.

  FIG. 1 is a perspective view showing an embodiment of a railroad vehicle 21 according to the present invention, and shows a state where the railroad vehicle 21 is positioned on a railroad crossing. In FIG. 1, the railroad vehicle 21 moves on the roads 15 and 16 and stops at the center of the railroad crossing. The rails 11 and 12 provided on the track 10 are positioned at an angle at which the vehicle body 22 is perpendicular. (In the installation situation of a railroad crossing, the track 10 and the rails 11 and 12 are not exactly perpendicular, and the two often cross diagonally). FIG. 2 is a side view of the structure of the track 10 in FIG. 1. The roads 15 and 16 and the intermediate zone 17 are located in the left-right direction on the paper surface, and the rails 11 and 12 are located in the front and back direction on the paper surface. Will be.

  The entire track-and-rail vehicle 21 is a truck with an engine that is generally commercially available, and a vehicle body structure called a so-called dump truck is shown in the drawing. The vehicle body 22 that supports the entire railway vehicle 21 is composed of a frame welded with channel steel. Front tires 23 for steering are pivotally supported on the left and right lower surfaces of the front portion of the vehicle body 22. Rear tires 24 for driving are pivotally supported on the left and right lower surfaces. A cabin 25 for mounting by the driver is fixed on the front side of the vehicle body 22 and above the front tire 23. A box-shaped loading platform 18 for placing gravel or earth and sand is fixed above the rear portion of the vehicle body 22. The configurations of the vehicle body 22, the front tire 23, the rear tire 24, the cabin 25, and the loading platform 18 are exactly the same as those of a conventionally known dump truck, and the rail car 21 modifies this commercially available truck. It is assembled by that.

  Front jack mechanisms 31 are fixed at positions between the cabin 25 and the loading platform 18 on the left and right side surfaces of the vehicle body 22, respectively. A front iron ring 22 is pivotally supported at the lower part of the front jack mechanism 31, and a hydraulic cylinder that can be expanded and contracted vertically is housed therein, and the front iron ring 22 can be moved in the vertical direction. By the action of a hydraulic cylinder (not shown), the front iron wheel 22 can be moved up and down to come into contact with the rails 11 and 12, thereby lifting the rail car 21 and raising the front tire 23.

  A rear jack mechanism 32 that can be rotated by a hydraulic cylinder 36 is attached to the rear portion of the vehicle body 22 by a pin 35. A rear iron wheel 34 is pivotally supported on the left and right of the rear end of the rear jack mechanism 32, and a friction wheel 37 that can approach the rear iron wheel 34 and come into contact with the rear tire 24 is pivotally supported. The rear jack mechanism 32 can be rotated in a fan shape around the pin 35 by the expansion and contraction of the hydraulic cylinder 36. When the entire rear pivot mechanism 32 is rotated downward, the rear iron ring 34 is brought into contact with the rails 11 and 12 to lift the vehicle body 22. be able to. At the same time, the friction wheel 37 is brought into contact with the rear tire 24. When the rear tire 24 rotates, the rotational force is transmitted to the friction wheel 37, and the rotational force is transmitted to the rear iron wheel 34 by hydraulic pressure or a chain. By this action, the rail vehicle 21 can move on the rails 11 and 12. This configuration is conventionally known, and detailed description thereof is omitted.

  In this structure, when the rail vehicle 21 travels on a public road, the front iron mechanism 33 is pulled up by the front jack mechanism 31, and the rear jack mechanism 32 is pulled up by the hydraulic cylinder 36 and the rear iron ring 34 is flipped up. . Then, since the front tire 23 and the rear tire 24 are in contact with the ground, the output from the engine is transmitted to the rear tire 24, and the entire rail vehicle 21 can be driven on a public road. In order to change the direction of the track-and-rail vehicle 21, it can be changed to the target direction by operating the front tire 23 right and left. Such a function is the same as that of a conventionally known general track.

  Further, on the left and right sides of the vehicle body 22, between the front jack mechanism 31 and the rear tire 24 (corresponding to the position of the center of gravity of the rail car 21), the entire rail car 21 is lifted and turned in the horizontal direction. A lifting / lowering rotation mechanism 41 that can be fixed is fixed. The lifting / lowering rotation mechanism 41 has an effect that the rail car 21 can be placed on the track 10 at the railroad crossing and can be returned from the track 10 to the roads 15 and 16. This up-and-down rotation mechanism 41 is also a conventionally known structure, and is used for switching the rail vehicle 21 from the roads 15 and 16 to the track 10.

  Next, the structure of the lifting / lowering rotation mechanism 41 will be described.

  FIG. 3 is a sectional view of the rail car 21 cut in the longitudinal direction at the center and viewed in the length direction. FIG. 4 is an exploded perspective view showing the main part of the lifting / lowering rotation mechanism 41 in the same manner. is there. The vehicle body 22 is a steel pipe having a rectangular cross section, and lifting legs 43 and 44 are fixed to both sides of the vehicle body 22 so that the axes thereof are vertical. The elevating leg 43 is a rectangular upper case 45 that is hollow inside and opened downward, a rectangular lower case 47 that is housed inside the upper case 45 and can move up and down, and an upper case 45 and a lower case. The hydraulic cylinder 49 is housed inside the upper case 45 and is connected to the upper part of the upper case 45 and the lower part is connected to the lower part of the lower case 47. By extending and contracting the hydraulic cylinder 49, the lower case 47 can be moved up and down from the lower opening of the upper case 45. Similarly, the lifting leg 44 has the same structure, and is composed of an upper case 46, a lower case 48, and a hydraulic cylinder 50. The lower case 48 is vertically moved from the lower opening of the upper case 46 by the expansion and contraction of the hydraulic cylinder 50. Can be moved.

  A flat base plate 53 is fixed to the lower ends of these lower cases 47 and 48, and the base plate 53 is held horizontally by the lower cases 47 and 48 on the lower surface of the vehicle body 22. . The base plate 53 is a deformed octagon obtained by cutting four corners of a rectangular steel plate, and a relatively large space 55 is formed through the center of the base plate 53 between the lower cases 47 and 48. . An annular rotation support ring 56 is disposed along the space 55, and the base plate 53 and the rotation support ring 56 are connected and fixed by bolts or the like. A thin holding plate 57 is fixed to the upper surface of the rotation support ring 56 and close to the lower case 48, and a hydraulic motor 58 is mounted on the holding plate 57. Further, an output shaft 59 that is a rotational output of the hydraulic motor 58 is directed downward and is located inside the space 55, and a drive gear 60 is connected to the lower portion of the output shaft 59.

  Next, the lower surface of the swivel plate 65 comes in contact with and separates from the rails 11 and 12, and is formed in a flat rectangular steel plate. In the center of each short side of the swivel plate 65, there are notched portions 66 and 67 having a square shape, and the whole is formed so as to be H-shaped in a plane. On the lower surface of each short side of the swivel plate 65, inclined step portions 71 and 72 are formed in a circular arc shape. The distance L between the two inclined step portions 71 and 72 is the length of the two rails 11 and 12. It is set to be almost the same as the inner space.

  A driven internal gear 68 having an annular shape and a tooth shape on the inner surface is fixed with a bolt or the like at the center of the upper surface of the swivel plate 65. The outer diameter of the driven internal gear 68 is substantially the same as the inner diameter of the rotary support ring 56 described above, and the driven internal gear 68 is inserted into the internal space of the rotary support ring 56 so that both can rotate in the horizontal direction. Has been. In addition, bearings 61 and 62 are interposed between the driven internal gear 68 and the rotation support ring 56, and the driven internal gear 68 is held so that it can rotate smoothly. When the driven internal gear 68 is fitted to the rotation support ring 56, the external teeth of the drive gear 60 are engaged with the internal teeth of the driven internal gear 68. A turning portion 74 is constituted by the base plate 53, the turning plate 65, and the like.

  FIG. 5 shows a hydraulic circuit in the swivel rotating mechanism of the present invention. The track-and-ground vehicle 21 is equipped with an engine 81 for traveling on the road, and is a device that has a function of transmitting a driving force of the engine 81 to another device by remodeling a normal dump truck and abbreviating PTO (Power take off). ) 82 is installed. A hydraulic pump 83 is connected to the output side of the PTO 82, the suction side of the hydraulic pump 83 is in communication with the oil tank 84, and a three-way switching valve 85 is connected to the discharge side. This three-way switching valve 85 switches the oil path into two systems, one switching end is connected to the hydraulic cylinders 49 and 50, and the other switching end is connected to the switching valve 86. This switching valve 86 can switch the oil path in three stages of neutral, forward and reverse directions by lever 87, and both ends on the output side of switching valve 86 are connected to both ends of hydraulic motor 58, The discharge side of the switching valve 86 communicates with the oil tank 84. A manual pump 90 is connected in parallel to both the discharge side and the suction side of the hydraulic pump 83, and the manual pump 90 is provided with an operation lever 91 for generating hydraulic pressure manually.

  Next, the operation of the present invention will be described. In this description, the operation of causing the railroad vehicle 21 to enter the railroad crossing from the roads 15 and 16 and transferring to the rails 11 and 12 at the level crossing is performed with reference to FIGS. 2, 6, 7, 8, and 9.

  The railroad vehicle 21 is driven from the public road to the railroad crossing, and the railroad vehicle 21 is stopped at the center of the railroad crossing in the roads 15 and 16 and the intermediate zone 17 shown in FIGS. At this time, the front jack mechanism 31 is contracted and the front iron wheel 33 is positioned upward, the hydraulic cylinder 36 is contracted, the rear jack mechanism 32 is lifted rearward of the rail vehicle 21, and the rear iron wheel 34 is also upward. positioned. Further, since the hydraulic cylinders 49 and 50 of the lifting and rotating mechanism 41 are contracted and the turning portion 74 is located above the intermediate zone 17, the turning plate 65 is in contact with the rails 11, 12, the intermediate zone 17, and the like. Not done.

  From this state, first, the mutual positions of the swivel plate 65 and the rails 11 and 12 are adjusted so that the inclined step portions 71 and 72 of the swivel plate 65 are positioned above the rails 11 and 12. In this adjustment, the three-way switching valve 85 is tilted toward the switching valve 86, and the pressure oil from the hydraulic pump 83 is supplied to the switching valve 86. Then, by operating the lever 87 forward and backward, pressure oil is supplied, and the hydraulic motor 58 is rotated forward or backward. Then, the drive gear 60 is rotated forward or backward from the output shaft 59, the meshed driven internal gear 68 is rotated forward and backward, and at the same time, the turning plate 65 is rotated forward and backward in the horizontal direction with respect to the base plate 53. FIG. 5 shows a state in which the swivel plate 65 is rotated about 30 degrees with respect to the base plate 53, and the swivel plate 65 is moved to a position perpendicular to the rails 11 and 12 by operating the lever 87. Rotate. Then, fine adjustment is performed so that the inclined step portion 71 of the turning plate 65 is positioned above the rail 11 and the inclined step portion 72 is positioned above the rail 12.

  When the adjustment of the relative positional relationship between the inclined step portions 71 and 72 and the rails 11 and 12 is completed, the three-way switching valve 85 is tilted toward the hydraulic cylinders 49 and 50, and pressure oil is supplied to the hydraulic cylinders 49 and 50. Elongate. Then, the lower cases 47 and 48 are pushed downward from the upper cases 45 and 46, respectively, and the entire turning portion 74 including the base plate 53 and the turning plate 65 is moved downward. Finally, the lower surface of the swivel plate 65 comes into contact with the rails 11 and 12 and the intermediate zone 17, and the inclined step portions 71 and 72 are in close contact with the inside of the rails 11 and 12. Further, when the hydraulic cylinders 49 and 50 are extended, the vehicle body 22 (railway vehicle 21) is relatively lifted, and the front tire 23 and the rear tire 24 are separated from the roads 15 and 16. This state is shown in FIG.

  In the state of FIG. 6, the rail vehicle 21 is separated from the ground 15 and 16 and is supported only by the turning plate 65. At this time, when the switching valve 86 is set to neutral, the hydraulic motor 58 is in a free state. Then, when the state of FIG. 6 is reached, the turning board 65 can be freely rotated with respect to the base plate 53 by pushing the railway car 21 with human power, and the entire railway car 21 can be turned in the horizontal direction. In this manner, the rail car 21 indicated by the chain line in FIG. 7 is rotated in the direction of the arrow X, and stopped at the position of the rail car 21 indicated by the solid line. As a result of this work, the track-and-truck 21 is turned approximately 90 degrees on the railroad crossing.

  Next, FIG. 8 is a side view of the rail car 21 shown by the solid line in FIG. 7 as viewed from the road 15 side. The front jack mechanism 31 is extended to bring the front iron wheel 33 into contact with the rail 11, and the hydraulic cylinder 36 is extended. In this state, the rear jack mechanism 32 is rotated clockwise around the pin 35 and the rear iron ring 34 is brought into contact with the rail 11. When the railway vehicle 21 indicated by the chain line in FIG. 7 is rotated about 90 degrees to the position of the solid line, the inclined step portions 71 and 72 of the turning plate 65 are positioned in close contact with the rails 11 and 12. Since the front iron wheel 33 and the rear iron wheel 34 are respectively positioned above the rails 11 and 12, the front iron wheel 33 and the rear iron wheel 34 are accurately fitted to the rails 11 and 12 when they are lowered. When the hydraulic cylinder 36 in the rear jack mechanism 32 extends, the rear jack mechanism 32 as a whole rotates around the pin 35 in the clockwise direction, and at the same time the rear wheel 34 fits into the rails 11 and 12, the friction wheel 37 moves rearward. The tire 24 is brought into contact with the outer periphery. In this way, the drive system of the rail car 21 can be switched from the tire to the iron wheel.

  Further, when the hydraulic cylinders 49, 50 of the lifting / lowering rotation mechanism 41 are reduced and the lower cases 47, 48 are operated to be retracted into the upper cases 45, 46, the entire swivel unit 74 including the base plate 53 and the swivel plate 65 is obtained. Rises relatively, and the swivel plate 65 moves away from the rails 11 and 12. FIG. 9 shows a state in which the turning plate 65 has moved away from the rails 11 and 12, and in this state, there is no element that prevents the rail car 21 from moving. In this state, when the rear tire 24 is rotated by operating the engine in the railway vehicle 21, the driving force is transmitted to the rear iron wheel 34 via the friction wheel 37, and the railway vehicle on the rails 11 and 12. 21 can be moved.

  By such a series of operations, the rail vehicle 21 can be transferred from the roads 15 and 16 to the rails 11 and 12. Further, in order to transfer the rail car 21 from the rails 11 and 12 to the roads 15 and 16, the operation procedure reverse to that described above is performed.

  In the series of operations described above, the hydraulic pressure for operating the hydraulic motor 58 and the hydraulic cylinders 49 and 50 is generated from the hydraulic pump 83. However, in a situation where noise cannot be generated in the vicinity such as at midnight, the engine 81 cannot be operated and the operation by power may not be possible. In such a situation, it is possible to manually lift and change the direction of the rail car 21.

  When the operation is performed manually, the operation lever 91 is manually moved up and down and the manual pump 90 is operated. The manual pump 90 sucks pressure oil from the oil tank 84 and discharges the pressure oil toward the three-way switching valve 85. In the three-way switching valve 85, pressure oil is supplied to the hydraulic cylinders 49, 50 side to expand and contract the respective hydraulic cylinders 49, 50, or pressure oil is supplied to the hydraulic motor 58 through the switching valve 86 by switching and rotated. By this operation, the rail car 21 can be transferred from the roads 15 and 16 to the rails 11 and 12.

DESCRIPTION OF SYMBOLS 10 Track 11 Rail 12 Rail 13 Sleeper 15 Road 16 Road 17 Intermediate zone 21 Railroad vehicle 22 Car body 23 Front tire 24 Rear tire 25 Cabin 26 Cargo bed 31 Front jack mechanism 32 Rear jack mechanism 33 Front iron wheel 34 Rear iron wheel 35 Pin 36 Hydraulic cylinder 37 Friction wheel 41 Elevating and rotating mechanism 43 Elevating leg 44 Elevating leg 45 Upper case 46 Upper case 47 Lower case 48 Lower case 49 Hydraulic cylinder 50 Hydraulic cylinder 53 Base plate 55 Space 56 Rotation support ring 57 Holding plate 58 Hydraulic motor 59 Output shaft 60 Drive Gear 61 Bearing 62 Bearing 65 Swivel plate 66 Notch portion 67 Notch portion 68 Driven internal gear 71 Inclined step portion 72 Inclined step portion 74 Swivel portion 81 Engine 82 PTO
83 Hydraulic pump 84 Oil tank 85 Three-way switching valve 86 Switching valve 87 Switching lever 90 Manual pump 91 Operation lever

Claims (4)

It is possible to selectively travel on the track (10) and the roads (15, 16) by supporting the tires (23, 24) and the steel wheels (33, 34) on the lower surface of the vehicle body (22). ) And the roadway (15, 16) in the rail car (21) having a function to lift and rotate the vehicle body (22)
Elevating legs (43, 44) fixed to substantially the center left and right of the vehicle body (22) and capable of lifting the vehicle body (22) by extending and retracting the built-in hydraulic cylinders (49, 50), and both the elevating legs (43 , 44) and a flat plate-like base plate (53) bridged substantially horizontally between the lower ends thereof, and a flat plate-like swivel plate arranged so as to be rotatable in the horizontal direction on the lower surface of the base plate (53). (65), a driven internal gear (68) fixed at substantially the center of the swivel plate (65) and having a tooth surface on the inner periphery, and a hydraulic motor fixed to the base plate (53) and operated by pressure oil (58) and a drive gear (60) fixed to the output shaft of the hydraulic motor (58) and having its external teeth meshed with the driven internal gear (68). Table rotation mechanism.   The hydraulic motor (58) has a discharge side of a hydraulic pump (83) operated by an engine output and a discharge side of a manual pump (90) operated manually connected in parallel. The swivel base rotation mechanism for a rail vehicle according to claim 1.   Between the discharge side of the hydraulic motor (58), the hydraulic pump (83), and the manual pump (90), a switching valve (86) capable of switching to neutral, forward rotation, and reverse rotation is interposed. The turning platform rotating mechanism for a rail vehicle according to claim 2.   A three-way switching valve (85) is connected to the discharge side of the hydraulic pump (83) and the manual pump (90), a hydraulic motor (58) is connected to one output end of the three-way switching valve (85), and the other 3. The turning platform rotating mechanism for a rail vehicle according to claim 2, wherein a hydraulic cylinder (49, 50) housed in an elevating leg (43, 44) is connected to the output end of the rail.

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