JP2012183841A - Railway car structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a railway car structure capable of concurrently achieving weight reduction, high rigidity and high strength in a railway car including an engine and a generator.SOLUTION: Louver window sections 24, 24 formed in hollow extruded shape constituting a side structure 20 are comprised of two triangular openings formed by partitioning a rectangular opening along a diagonal line. The diagonal line is extended from an upper corner at the end of the side structure 20 in the longitudinal direction to a lower corner in the central direction, and the corner of the opening is rounded. A louver window reinforcing member 50 is fitted to the end of the opening with a clearance formed therebetween and is joined to a cabin side face board of the side structure 20. In such a structure, a shearing load working on the side structure due to a heavy object such as an engine or a generator is burdened by the reinforcing joined to the hollow extruded shape positioned on the diagonal line and an opening periphery. Thus, even the railway car structure made of aluminum alloy with low rigidity and strength can restrain deformation of an opening formed in the side structure that tends to have concentrated deformation.

Description

  The present invention relates to a railway vehicle including an engine and a generator operated by the engine, and particularly to a railway vehicle having a railway vehicle structure made of an aluminum alloy.

  An example of a railway vehicle including an engine and a generator is an electric diesel locomotive. An electric diesel locomotive is a vehicle equipped with an engine, a generator, a main converter, and a main motor, and the frequency and voltage of the electric power generated by the generator driven by the diesel engine are controlled by the main converter. It is a locomotive that obtains traction by converting it into electric power and rotating the main motor provided in the carriage using the electric power as energy.

  Here, in an engine that is an internal combustion engine and a generator that is operated by the engine, a large amount of heat is released from the surface of the engine into the locomotive. Therefore, it is necessary to cool the engine and the generator efficiently. For this reason, the locomotive is provided with a blower, and an opening provided with an air filter is provided on the side structure of the locomotive, and cooling air taken into the locomotive from this opening is supplied with a duct or the like. To the equipment room equipped with an engine and a generator through which heat is taken from the engine and the generator and cooled, and the air whose temperature has risen is discharged outside the locomotive by a blower.

  Patent Document 1 describes a technique related to a cooling structure for an electric diesel locomotive. As shown in FIG. 13, this electric diesel locomotive cooling structure is provided with engine rooms 316 and 316 on both sides of a blower room 317 having no windows via partition walls 312 and 312, and outside each engine room 316. A control equipment room 315 is provided via a partition wall 312, and a driving room 314 is provided at both ends of the outer vehicle body. A door 313 is provided on the outer plate side of each partition wall 312 to improve visibility from the cab 314. The outside air sucked by the main blower 305 in the blower chamber 317 is guided from the air filter 306 on the outer plate of the engine chamber 316 through the suction duct 307. An air filter 310 is also provided on the outer plate of the control device room 315, and the devices in the control device room 315 and the engine room 316 are cooled from the surface by the outside air that has passed through the air filter 310. Air that cools the inside of the engine 303, the control device 301, and the power supply device 302 is supplied from the main blower 305 through the underside of the vehicle body. In addition, 304 is a main generator, 308 is an intake filter, and 311 is a muffler.

Japanese Patent Laid-Open No. 10-203359

  Unlike an electric locomotive, an electric diesel locomotive is equipped with an engine and a generator in addition to a main converter and a main motor, so that the weight tends to increase. The large weight of an electric diesel locomotive increases the adhesion between the wheels and the rails, but the burden on the track is particularly large when traveling at high speeds, and when the frequency of track maintenance work increases. The cost required for maintenance work may increase. Moreover, since energy required for driving increases, an environmental load increases in addition to energy costs.

  On the other hand, in recent years, in order to reduce the weight of a railway vehicle, there has been developed a railway vehicle in which a railway vehicle structure that is mainly composed of iron is composed of a low-density aluminum alloy. An aluminum alloy railcar structure may have a lower weight than an iron railcar structure, but at the same time, rigidity and strength may be reduced. A decrease in the rigidity of the railway vehicle structure causes a deterioration in the riding comfort of the railway vehicle. Therefore, even in an aluminum alloy railway vehicle structure, it is necessary to ensure rigidity equivalent to that of an iron railway vehicle structure.

Here, when a railway vehicle structure made of an aluminum alloy is applied to a railway vehicle equipped with an engine and a generator, it is necessary to ensure sufficient rigidity and strength while a large weight of the engine or the generator acts. . Normally, when a heavy weight such as an engine or a generator acts on the frame (floor structure) supported by the front and rear trolleys in the longitudinal direction of the vehicle structure, the side structure that is erected (joined) to the frame is The internal shear deformation occurs, and the deformation is particularly concentrated in the opening of the side structure. Therefore, securing the rigidity and strength at the opening of the side structure is an important issue. Thus, in a railway vehicle equipped with an engine and a generator, there is a problem to be solved in terms of achieving both weight reduction of the railway vehicle structure and securing of rigidity and strength.
An object of the present invention is to provide a railway vehicle structure that is lightweight and can ensure sufficient rigidity and strength in a railway vehicle including an engine and a generator.

  In order to solve the above-described problems, a railway vehicle structure according to the present invention includes a roof structure that forms an upper surface, two side structures that form both side surfaces, and a frame that forms a lower surface, and includes an engine and a generator inside. In the railway vehicle structure, the side structure is constituted by a hollow extruded shape member made of aluminum alloy in which two face plates facing each other are connected by ribs, and cooling air for cooling the engine and the generator is provided on the side structure. An air intake for taking in the inside from the outside of the railway vehicle structure is provided, and the air intake is characterized by comprising two triangular openings obtained by dividing a rectangular opening by a member arranged on the diagonal line.

  Excessive shear load acting on the opening (louver window) of the side structure can be borne by the members arranged on the diagonal of the opening, and even in a railway vehicle structure made of an aluminum alloy that may reduce rigidity and strength. And the deformation | transformation in the opening part of a side structure can fully be suppressed.

  In the present railway vehicle structure, the members arranged on the diagonal line can be arranged from the upper corner of the rectangular opening toward the lower corner in the central direction of the railcar structure from the upper corner of the railcar structure. If the hollow extruded shape bearing the shear load is placed along the diagonal line from the upper corner toward the lower corner of the railroad vehicle structure where the tensile load acts, the weight of the engine and generator Therefore, since a tensile load acts on the member instead of a compressive load, buckling can be prevented.

  The diagonally arranged members are the hollow extruded profiles themselves, and a reinforcing member can be joined to the surface of the face plate located inside the railway vehicle structure along the edge of the triangular opening. Moreover, the member arrange | positioned at the said diagonal is the said hollow extruded shape itself, and can join a reinforcement member to the end surface of the said hollow extruded shape along the edge of the said triangular opening. By joining these reinforcing members, the rigidity and strength at the opening of the side structure where deformation is concentrated can be further improved.

  In this railway vehicle structure, the corners of the triangular openings can be bordered by arcs that are in contact with the two sides constituting the corners. At the same time, a gap can be provided between the edge of the reinforcement and the edge of the opening. By reducing the stress concentration at the corner of the opening by edging with an arc or installing a gap, it is possible to suppress a decrease in the strength of the corner of the opening due to the stress concentration, and the gap affects the heat effect during bonding at the edge of the opening. Absorption reduces the strength of the edge of the opening due to the thermal effect.

  In the present railway vehicle structure, the diagonally arranged member and the edge of the rectangular opening can be constituted by an integral opening reinforcing member. The opening reinforcing member can be manufactured by welding a plurality of parts. Alternatively, the block can be integrally manufactured by machining. Furthermore, the opening portion reinforcing member may be provided with a receiver for an air filter installed in the triangular opening.

  In the railway vehicle structure, a cooler for cooling the engine and the generator is provided inside the railway vehicle structure, and the air intake is located near the engine and the generator and near the cooler. It can be provided in two places.

According to the present invention, in a railway vehicle comprising a roof structure that constitutes an upper surface, two side structures that constitute both side surfaces, and a frame that constitutes a lower surface, and is equipped with an engine and a generator inside, it is lightweight at the same time. A railway vehicle structure that can ensure sufficient rigidity and strength can be provided.
That is, according to the present railway vehicle structure, cooling air for cooling the engine and the generator is supplied to the side structure composed of an aluminum alloy hollow extruded member in which two facing face plates are connected by ribs. There is an air intake for taking in from the outside to the inside of the structure, but this air intake is composed of two triangular openings divided by a member arranged on the diagonal of the square opening, so excessive shear The load can be borne by a hollow extruded member arranged on the diagonal line of the opening and a reinforcement joined around the opening, and the structure around the air intake can be strengthened.

FIG. 1 is a side view of a railway vehicle equipped with an engine and a generator and to which a railway vehicle structure according to the present invention is applied. FIG. 2 is a cross-sectional view taken along line AA of the railway vehicle shown in FIG. FIG. 3 is a diagram illustrating each device mounted on the railway vehicle by removing a part of the side surface of the railway vehicle illustrated in FIG. 1. FIG. 4 is a top view showing the arrangement of each device mounted on the top surface of the roof and underframe, with the passenger compartment air conditioner and the roof cover removed. FIG. 5 is a cross-sectional view of the railway vehicle shown in FIG. FIG. 6 is an enlarged view of a portion C of the railway vehicle shown in FIG. 1, and is a schematic view of the structure of the louver window portion as seen from the vehicle inner side. FIG. 7 is an enlarged view of a portion C of the railway vehicle shown in FIG. 1, and is a schematic view of the other structure of the louver window portion as seen from the vehicle interior side. FIG. 8 is an enlarged view of a portion C of the railway vehicle shown in FIG. 1, and is a schematic view of the other structure of the louver window portion as seen from the vehicle interior side. FIG. 9 is an enlarged view of a portion C of the railway vehicle shown in FIG. 1 and is a schematic view of the other structure of the louver window portion as viewed from the outside of the vehicle. 10 is a DD cross-sectional view of the louver window portion shown in FIG. 9. FIG. 11 is a front view of the opening peripheral edge reinforcing member. FIG. 12 is a front view of the opening reinforcing member. FIG. 13 is a top view of a state in which a roof cover and the like of a railway vehicle equipped with a conventional engine and generator are removed.

Embodiments of a railway vehicle structure according to the present invention will be described below with reference to the drawings.
FIG. 1 is a side view of a railway vehicle including an engine and a generator. The railway vehicle shown in FIG. 1 is a power supply vehicle 200 equipped with equipment for obtaining electric power by operating a generator with an engine. The power supply car 200 includes a base frame 10 constituting a floor surface, side structures 20 and 20 (only one side structure is shown) erected on both ends in the width direction (sleeper direction) of the base frame 10, and the base frame 10 The crew member room 100 provided at one end in the longitudinal direction of the vehicle, the wife structure 30 standing at the other end in the longitudinal direction of the frame 10, the crew member room 100, the side structures 20, 20 and the wife structure 30 And a roof frame 40 disposed at the upper end of the structure. Pillow beams 5 and 5 are provided on the lower surfaces of both ends in the longitudinal direction of the frame 10, and carts 9 and 9 that support the power supply vehicle 200 are disposed corresponding to the pillow beams 5 and 5. On the outside of the wife structure 30, there is provided a connecting hood 32 that forms a passage when a driver or conductor in the crew room 100 travels from the power supply car 200 to an adjacent railway vehicle (not shown). .

  In order to introduce outside air into the power supply vehicle 200, the side structures 20, 20 are provided with louver windows 24, 24 each having a louver formed by arranging narrow blades with a gap therebetween. The louver window portion 24 on the side close to the crew cabin 100 is provided for introducing outside air for cooling the engine and the generator. The louver window 24 on the side close to the connecting hood 32 is for taking in outside air for cooling the cooler that takes heat from the cooling water flowing inside the circulation pipe arranged in a manner surrounding the engine and releases it to the atmosphere. Is provided.

  A portion of the roof frame 40 near the crew room 100 is provided with air conditioners 46 and 46 for the crew room that adjust the temperature and humidity in the crew room 100 and ventilate. By installing two air conditioners 46 and 46 for the crew room, the air conditioner is provided with redundancy in the event of a failure, and has a cooling capacity commensurate with the heat generation of electric equipment such as in-vehicle signal equipment provided in the crew room 100 . At the center in the longitudinal direction of the roof frame 40, roof covers 42 and 42 that can be attached to and detached from the side structures 20 and 20 and the structure of the roof frame 40 are provided. The roof covers 42, 42 are removed from the structure as necessary when an engine, a generator, a cooler, etc. are mounted on or lowered from the power supply car 200, and the engine through the opening opened in the roof frame 40 by removing this. Devices such as generators and coolers can be passed.

  On the underside of the frame between the carriages 9 and 9, there is a fuel tank 16a carrying fuel to be supplied to the engine, a converter 18 for converting AC power generated by the generator into DC power, and leakage when the engine is attached / detached. A waste oil tank 16b for collecting oil to be discharged is mounted.

  FIG. 2 is a cross-sectional view taken along a plane AA parallel to the frame at a height position directly above the frame of the railway vehicle shown in FIG. In the power supply car 200, the end of the base frame 10 in the longitudinal direction (near the crew cabin 100 and the wife structure 30) has a strength that can withstand the load from the coupler (not shown) and the trucks 9, 9. The two middle beams 3 and 3 and the pillow beam 5 along the longitudinal direction of the frame 10 are welded to the lower surface of the base frame 10 to provide a structure having high rigidity. Air spring receivers 7 and 7 provided on the carriages 9 and 9 support the lower surfaces of both ends of the pillow beams 5 and 5 in the sleeper direction.

  FIG. 3 is a side view showing each device mounted on the railway vehicle by removing a part of the side surface of the railway vehicle shown in FIG. 1. The power supply vehicle 200 is provided with equipment rooms having different environments such as temperature and humidity in the longitudinal direction of the vehicle, and each equipment room is partitioned by four partition walls 26A to 26D. An air supply filter 62 for removing dust and the like from the air taken into the engine 60 for mixing with the fuel, and a generator / air supply filter chamber 110 on which a generator 70 driven by the engine 60 is placed; The engine chamber 120 on which the engine 60 is placed is partitioned by a partition wall 26B. The engine chamber 120 and the cooler chamber 130 in which the cooler 64 for maintaining the temperature of the cooling water for cooling the cylinder 60 and the like of the engine 60 so as not to be broken by the high-temperature combustion gas is placed in the partition wall 26C. It is partitioned by. Further, the generator / air supply filter chamber 110 and the crew room 100 are partitioned by a partition wall 26A, and the cooler chamber 130 and the brake equipment chamber 140 are partitioned by a partition wall 26D.

  The air supply filter 62 is connected to a supercharger at the air supply port of the engine 60 installed in the adjacent engine chamber 120 through the air supply pipe 65. The air supply pipe 65 is disposed so as to penetrate the partition wall 26 </ b> B that partitions the generator / air supply filter chamber 110 and the engine chamber 120.

  The engine chamber 120 on which the engine 60 is placed is provided with a blower 61 for discharging heat released from the surface of the engine 60 to the outside of the vehicle. Air outside the vehicle that cools the engine 60 by the exhaust action of the blower 61 is introduced into the generator / air supply filter chamber 110 through the louver window 24, and is then partitioned from the generator / air supply filter chamber 110 and the engine chamber 120. It flows into the engine chamber 120 from a ventilation hole (not shown) provided in the partition wall 26B.

  The exhaust duct connected to the blower 61 is disposed through the partition wall 26 </ b> C, and the waste heat of the engine 60 is once guided to the adjacent cooler chamber 130 by the blower 61, and then has a large diameter provided in the cooler 64. The power is discharged from the power supply car 200 by the fan. In the engine room 120, instead of the blower 61, the roof cover 42 covering the upper surface of the engine room 120 is provided with a fan (not shown), and the engine 60 is not led to the adjacent cooler room 130 without introducing the waste heat of the engine 60 into the engine room 120. It may be discharged directly from the chamber 120 to the outside of the vehicle.

  FIG. 4 is a diagram illustrating a state in which the air conditioners 46 and 46 for the crew cabin and the roof covers 42 and 42 are removed, and an upper surface illustrating the arrangement of each device mounted on the upper surfaces of the roof frame 40 and the underframe 10. FIG. An electric device 72 mainly related to signal equipment is provided on the upper surface of the base frame 10 of the crew member room 100, and a brake resistor 66 and the like are provided on the upper surface of the roof frame 40 of the cooler room 130. On the upper surface of the roof frame 40 of the brake equipment room 140, a filter reactor 74 that removes harmonics of electric power and pulsating flow components, a brake device 68 including a compressor and an air tank, and the like are provided.

  The generator 70 and the engine 60 mounted on the upper surface of the frame 10 of the generator / air supply filter chamber 110 and the engine chamber 120 serve as a first beam disposed along the longitudinal direction of the frame 10. Two beams 12, 12, a plurality of beams 14, 14, 14 as second beams arranged along the width direction of the frame 10, and the longitudinal direction of the beam 14 (width direction of the frame 10) And a plurality of beams 13 as a plurality of third beams that are disposed substantially parallel to the first beam and closer to both ends in the width direction of the frame 10 than the first beam. , 13 is provided on the upper surface of the base 17. In addition, about the apparatus etc. which attached | subjected and shown the code | symbol in FIG.1 and FIG.3, the description is abbreviate | omitted by attaching | subjecting and showing the same code | symbol.

  FIG. 5 is a cross-sectional view of the railway vehicle shown in FIG. The underframe 10 and the side structures 20 and 20 are made of a hollow extruded shape member made of an aluminum alloy in which two opposing face plates are connected by ribs. By configuring the structure of the power supply car 200 with a hollow extruded shape member made of an aluminum alloy having a density lower than that of iron, the mass of the power supply car 200 can be reduced.

  On the upper surface of the pedestal 17, there is provided a passage along the longitudinal direction of the power supply vehicle 200 so that devices such as the generator 70 and the air supply filter 62 can be inspected from both sides. The floors of these passages are provided with treads 15 and 15, and doors 27 and 27 through which crew members and maintenance personnel can pass are provided at portions where these passages abut against the partition wall 26D from the partition wall 26A. . In addition, about the apparatus etc. which attached | subjected and shown the code | symbol in FIG.1 and FIG.4, the description is abbreviate | omitted by attaching | subjecting and showing the same code | symbol.

  FIG. 6 is an enlarged view of part C of the railway vehicle shown in FIG. The figure is a view of the power supply vehicle 200 as seen from the inside. The louver windows 24, 24 are composed of two triangular openings in a form in which a rectangular opening is divided by a diagonal line, and the corners of the triangular openings constitute the corners. It is bordered by an arc that touches two sides. A diagonal line that divides the rectangular opening connects the upper corner on the end of the power supply car 200 in the longitudinal direction and the lower corner on the center of the power supply car 200 in the longitudinal direction.

  The diagonal line is configured by providing the two triangular openings in the hollow extruded profile constituting the side structure 20. That is, the diagonal line is the hollow extruded shape itself constituting the side structure 20. Around the louver windows 24, 24, there is a louver window reinforcing member 50 made of aluminum alloy joined to the surface of the face plate on the vehicle interior side of the hollow extruded profile constituting the side structure 20. The louver window reinforcing member 50 includes horizontal reinforcing blocks 51 and 51 along the horizontal sides of the louver windows 24 and 24, vertical reinforcing blocks 52 and 52 along the vertical sides, and diagonal lines along the diagonal line. The reinforcing block 53 and the corner reinforcing blocks 54 (four pieces) connecting these reinforcing blocks are joined to each other. A gap is provided between the edge of the louver window portions 24 and 24 and the edge of the louver window portion reinforcing member 50 on the louver window portions 24 and 24 side. The louver window 24 close to the connecting hood 32 has the same configuration. Moreover, you may couple | bond the iron louver window part reinforcement member 50 with mechanical fastening means, such as a volt | bolt, to the surface of the face plate inside the vehicle of the hollow extruded section constituting the side structure 20.

  In the above-described configuration, an excessive shear load acting on the openings (louver windows 24, 24) of the side structure due to a large weight of an engine, a generator, etc., and a hollow extruded shape member arranged on the diagonal of the opening and the opening Deformation in the opening of the side structure where the deformation is concentrated even if the countermeasure is not taken, even in the case of an aluminum alloy railway vehicle structure, where the rigidity and strength may be reduced. Can be sufficiently suppressed. In this configuration, since the arc is provided at the corner of the opening and the gap is provided between the edge of the reinforcement and the edge of the opening, the stress concentration at the corner of the opening is alleviated, thereby reducing the opening of the opening caused by the stress concentration. The strength reduction of the corners can be suppressed, and the gap between the openings can absorb the thermal effect at the time of joining at the edge of the opening, thereby suppressing the strength reduction of the edge of the opening due to the thermal effect. Furthermore, since the hollow extruded profile bearing the shear load is arranged along the diagonal line from the upper corner in the end direction of the railway vehicle structure where the tensile load acts to the lower corner in the central direction, It will not buckle. Therefore, in a railway vehicle including an engine and a generator, it is possible to provide a railway vehicle structure that is lightweight and can ensure sufficient rigidity and strength.

  FIG. 7 is an enlarged view of part C of the railway vehicle shown in FIG. 1 and shows another structure of the louver window. The figure is a view of the power supply vehicle 200 as seen from the inside. The louver windows 24, 24 are composed of two triangular openings in a form in which a rectangular opening is divided by a diagonal line, and the corners of the triangular openings constitute the corners. It is bordered by an arc that touches two sides. A diagonal line that divides the rectangular opening connects the upper corner on the end of the power supply car 200 in the longitudinal direction and the lower corner on the center of the power supply car 200 in the longitudinal direction.

  The diagonal line is formed by providing the two triangular openings in the hollow extruded profile constituting the side structure 20. That is, the diagonal line is the hollow extruded shape itself constituting the side structure 20. On the edges of the louver windows 24, 24, there is a louver window reinforcing member 50 made of aluminum alloy joined to the end face of the hollow extruded profile constituting the side structure 20. The louver window reinforcing member 50 includes horizontal reinforcing blocks 55 and 55 along the horizontal sides of the louver windows 24 and 24, vertical reinforcing blocks 56 and 56 along the vertical sides, and diagonal lines along the diagonal line. The reinforcing blocks 57, 57 and the corner reinforcing blocks 58 (6 places) connecting these reinforcing blocks are joined. The louver window 24 close to the connecting hood 32 has the same configuration. Further, an iron louver window portion reinforcing member 50 is coupled to a face plate on the inner side of the periphery of the triangular opening provided in the hollow extruded shape member constituting the side structure 20 by a mechanical fastening means such as a bolt. Also good.

  In the above-described configuration, an excessive shear load acting on the openings (louver windows 24, 24) of the side structure due to a large weight of an engine, a generator, etc., and a hollow extruded shape member arranged on the diagonal of the opening and the opening Deformation at the opening of the side structure where deformation is concentrated if no measures are taken, even in aluminum alloy railway vehicle structures, where rigidity and strength may be reduced. Can be sufficiently suppressed. In this configuration, since the arc is provided at the corner of the opening and at the same time the edge of the opening is configured by the block, the stress concentration at the corner of the opening is alleviated so that the strength of the corner of the opening due to the stress concentration is reduced. While a fall can be suppressed, the block can make up for the strength, and the strength deficiency at the edge of the opening can be suppressed. Furthermore, since the hollow extruded profile bearing the shear load is arranged along the diagonal line from the upper corner in the end direction of the railway vehicle structure where the tensile load acts to the lower corner in the central direction, It will not buckle. Therefore, in a railway vehicle including an engine and a generator, it is possible to provide a railway vehicle structure that is lightweight and can ensure sufficient rigidity and strength. Further, as compared with the embodiment shown in FIG. 6, the space required for installing the reinforcement can be reduced.

  FIG. 8 is an enlarged view of part C of the railway vehicle shown in FIG. 1, and is a view showing still another structure of the louver window part. The figure is a view of the power supply vehicle 200 as seen from the inside. The louver windows 24, 24 are composed of two triangular openings in a form in which a rectangular opening is divided by a diagonal line, and the corners of the triangular openings constitute the corners. It is bordered by an arc that touches two sides. A diagonal line that divides the rectangular opening connects the upper corner on the end of the power supply car 200 in the longitudinal direction and the lower corner on the center of the power supply car 200 in the longitudinal direction.

  A louver window reinforcement block 59 made of aluminum alloy is provided on the peripheral edge of the louver windows 24 and 24 including the horizontal and vertical sides of the diagonal lines and the louver windows 24 and 24. The louver window reinforcing block 59 is manufactured by machining from one block. Or you may manufacture by joining a some block. Here, the edge of the louver window portion reinforcing block 59 on the louver window portions 24, 24 side can be provided with a receiver for an air filter by machining. The louver window 24 close to the connecting hood 32 has the same configuration. Further, the iron louver window reinforcing block 59 may be coupled by a mechanical fastening means such as a bolt.

  In the above configuration, since the reinforcement that constitutes the diagonal and edge of the opening bears an excessive shear load acting on the opening of the side structure due to a large weight of an engine or a generator, the rigidity and strength may be reduced. Even in an aluminum alloy railcar structure having a certain shape, it is possible to sufficiently suppress the deformation at the opening of the side structure, where the deformation concentrates unless measures are taken. In this configuration, since the arc is provided at the corner of the opening and at the same time the edge of the opening is configured by the block, the stress concentration at the corner of the opening is alleviated so that the strength of the corner of the opening due to the stress concentration is reduced. While a fall can be suppressed, the block can make up for the strength, and the strength deficiency at the edge of the opening can be suppressed. Furthermore, since the reinforcement that bears the shear load is arranged along the diagonal line from the upper corner of the railway vehicle structure where the tensile load acts to the lower corner of the central direction, the member is buckled. It does not occur. Therefore, in a railway vehicle including an engine and a generator, it is possible to provide a railway vehicle structure that is lightweight and can ensure sufficient rigidity and strength. Further, the amount of bonding can be reduced as compared with the embodiment shown in FIG.

  FIG. 9 is an enlarged view of a portion C of the railway vehicle shown in FIG. 1 and is a schematic view of still another structure of the louver window portion as seen from the outside of the vehicle. 10 is a DD cross-sectional view of the louver window portion shown in FIG. 9. FIG. 11 is a front view of the opening peripheral portion reinforcing member, and FIG. 12 is a front view of the opening reinforcing member. The embodiment shown in FIGS. 9 to 12 explains a more specific structure to which the embodiment shown in FIGS. 6 to 8 is applied.

  In the embodiment shown in FIG. 9, a ventilation part (opening) for introducing outside air into the power supply car 200 is formed in the side structure 20 constituting the power supply car 200 on which a heavy object such as the engine 60 is mounted. A reinforcing member for effectively mitigating shear deformation and stress concentration generated in the peripheral edge of the ventilation portion due to the vertical load and vibration caused by the traveling of the power supply vehicle 200 is applied.

  First, the outer side plate 21, the inner side plate 23 and the ribs 22 connecting the two side plates of the hollow extruded shape member constituting the side structure 20 of the power supply car 200 are cut to provide a square-shaped opening that allows ventilation. . At this time, the size of the opening provided in the vehicle outer side plate 21 is set smaller than the openings provided in the vehicle inner side plate 23 and the rib 22 (see FIG. 10). An opening peripheral portion reinforcing member 80 manufactured substantially similar to the shape of the opening portion is welded to the vehicle inner side surface plate 23 in such a manner that it overlaps the vehicle inner side surface plate 23 along the periphery of the opening portion constructed in the side structure 20.

  The opening periphery part reinforcement member 80 joins four each of the opening periphery part horizontal reinforcement members 82 and 82 spaced apart in the up-down direction, and the opening periphery part vertical reinforcement members 84 and 84 spaced apart in the left-right direction. And an opening peripheral edge corner reinforcing member 86 having an arc shape on the inner edge and the outer edge (see FIG. 11). The opening peripheral edge reinforcing member 80 may be configured by preparing each of the above-described reinforcing members and joining them by welding, or by cutting out from a lump of material and integrating them without welding. You may comprise as.

  Next, the opening reinforcing member 90 is welded to the vehicle outer side face plate 21 and the opening peripheral edge reinforcing member 80 of the side structure 20. The opening reinforcing member 90 includes an opening horizontal reinforcing member 92, 92 spaced apart in the vertical direction, an opening vertical reinforcing member 94, 94 spaced apart in the left-right direction, and one of the four corners. The opening corner reinforcing members 96a and 96a that connect the opening horizontal reinforcing member 92 and the opening vertical reinforcing member 94, and the other diagonal corners and corners are arranged at two diagonal positions. The opening diagonal reinforcement member 98 that is connected obliquely, and the opening horizontal reinforcement member 92 and the opening vertical reinforcement member 94 that are disposed at the other two diagonals are connected to the opening diagonal reinforcement member 98. The opening corner portion reinforcing members 96b, 96b are formed (see FIG. 12). The opening reinforcing member 90 may be configured by preparing each of the above-described reinforcing members and joining them by welding, or by cutting out from a lump of material as an integral part without welding. It may be configured.

  Each of the horizontal reinforcing portion, the vertical reinforcing portion, and the corner reinforcing portion of the opening reinforcing member 90 is provided with a protruding portion 90a and an extending portion 90b along the outer peripheral edge. . The opening oblique reinforcing member 98 of the opening reinforcing member 90 is configured such that when the opening reinforcing member 90 is provided on the side structure 20 of the power supply car 200, the upper side corner of the power supply car 200 is viewed from the upper corner of the power supply car 200. It arrange | positions in the aspect which goes to the lower angle | corner of the center part of a longitudinal direction.

  As for the plate thickness of the projecting portion 90a located on the vehicle outer side, the thickness corresponding to the thickness of the vehicle outer surface plate 21 is removed from the surface on the vehicle outer side, and when the projecting portion 90a abuts on the vehicle outer surface plate 21, It is provided in such a manner that the positions of the surface of the vehicle outer side face plate 21 and the surface of the vehicle exterior side of the opening reinforcing member 90 are aligned. At the same time, the vehicle outer surface of the extension 90b is in contact with the vehicle inner upper surface of the opening peripheral edge reinforcing member 80. After the contact portions are welded by fillet welding or the like, the vertical reinforcing members 25 and 25 are welded to the upper surface inside the vehicle of the vertical reinforcing portion of the opening peripheral edge reinforcing member 80. Although not shown, the upper end portion of the vertical reinforcing member 25 is welded to the connection portion between the side structure 20 and the roof frame 40, and the lower end portion is welded to the joint portion between the side structure 20 and the base frame 10.

  In the above-described configuration, an excessive shear load acting on the opening of the side structure 20 due to a large weight of an engine, a generator, etc. is applied to the opening peripheral portion reinforcing member 80 provided in the opening and the vehicle outer side face plate 21. Since the reinforcing member composed of the opening reinforcing member 90 provided in the connecting aspect and the opening oblique reinforcing member 98 provided in the opening reinforcing member 90 bears, it is made of an aluminum alloy that may reduce rigidity and strength. Even in this railway vehicle structure, it is possible to sufficiently suppress the deformation at the opening of the side structure where the deformation is concentrated unless measures are taken.

  In this configuration, since arcs are provided at the four corners of the opening edge 20a of the opening of the side structure 20, and the opening reinforcing member 90 is provided along the opening edge 20a, stress concentration at the corner of the opening is provided. It is possible to suppress the strength reduction due to the above and the insufficient strength on the entire circumference of the opening (opening edge 20a).

  Furthermore, since the reinforcing member that bears the shear load is arranged in such a manner that it extends from the upper corner of the longitudinal end of the railway vehicle structure on which the tensile load acts to the lower corner of the central portion in the longitudinal direction. The member will not buckle.

  Therefore, in a railway vehicle including an engine and a generator, it is possible to provide a railway vehicle structure that is lightweight and can ensure sufficient rigidity and strength.

  The technical scope of the present invention is limited to the language described in each claim of the claims or the language described in the section of the means for solving the problem, and can be easily replaced by those skilled in the art. It extends.

DESCRIPTION OF SYMBOLS 3 ... Middle beam 5 ... Pillow beam 7 ... Air spring holder 9 ... Carriage 10 ... Base frame 20 ... Side structure 20a ... Opening edge 30 ... Wife structure 40 ... Roof frame 12 ... Beam (longitudinal direction) 13 ... End beam 14 ... Beam (width direction) 15 ... tread plate 16a ... fuel tank 16b ... waste oil tank 17 ... pedestal 18 ... converter 21 ... vehicle outer side plate 22 ... rib 23 ... vehicle interior side plate 24 ... louver window 25 ... vertical reinforcing members 26A-26D ... partition walls 27 ... Door 32 ... Connecting hood 42 ... Roof cover 46 ... Crew cabin air conditioner 50 ... Louver window reinforcing member 51, 55 ... Horizontal reinforcing block 52, 56 ... Vertical reinforcing block 53, 57 ... Diagonal reinforcing block 54, 58 ... Corner reinforcement block 59 ... Louver window reinforcement block 80 ... Opening peripheral edge reinforcing member 82 ... Opening peripheral edge horizontal reinforcing member 84 ... Opening peripheral edge vertical reinforcing member 86 ... Opening peripheral edge corner reinforcing part Material 90 ... Opening part reinforcing member 90a ... Protruding part 90b ... Extension part 92 ... Opening part horizontal reinforcing member 94 ... Opening part vertical reinforcing member 96a, 96b ... Opening corner part reinforcing member 98 ... Opening part diagonal reinforcing member 60 ... Engine 61 ... Blower 62 ... Air supply filter 64 ... Cooler 65 ... Air supply pipe 66 ... Brake resistor 68 ... Brake resistor (BCU + CP) 70 ... Generator 72 ... Electrical equipment 74 ... Filter reactor 100 ... Crew room (Electric parts room) 110 ... Generator / air supply filter chamber 120 ... engine chamber 130 ... cooler chamber 140 ... brake equipment chamber 200 ... power supply vehicle

Claims (10)

In the railway vehicle structure comprising the roof structure constituting the upper surface, the two side structures constituting both sides and the underframe constituting the lower surface, and having an engine and a generator inside,
The side structure is composed of an aluminum alloy hollow extruded member in which two facing face plates are connected by a rib,
The side structure is provided with an air intake for taking in cooling air for cooling the engine and the generator from the outside to the inside of the railway vehicle structure,
The air intake port comprises two triangular openings provided in a form in which a quadrangular opening is divided by members arranged along diagonal lines thereof,
A railway vehicle structure characterized by In the railway vehicle structure according to claim 1,
The member is arranged in a form connecting the upper corner of the rectangular opening on the end portion in the longitudinal direction of the railway vehicle assembly and the lower corner on the central portion of the rail vehicle assembly;
A railway vehicle structure characterized by In the railway vehicle structure according to claim 1,
The corner of the triangular opening is edged with an arc that touches the two sides constituting the corner;
A railway vehicle structure characterized by In the railway vehicle structure according to claim 1,
Inside the railway vehicle structure is provided with a cooler for cooling the engine and the generator,
The air intake port is provided at two locations in the side structure near the engine and the generator and near the cooler,
A railway vehicle structure characterized by In the railway vehicle structure according to claim 1,
The member is the hollow extruded shape itself,
A reinforcing member is joined to the surface of the face plate on the inner side of the railway vehicle structure along the edge of the triangular opening.
A railway vehicle structure characterized by In the railway vehicle structure according to claim 1,
The member is the hollow extruded shape itself,
A reinforcing member is joined to the end face of the hollow extruded profile along the edge of the triangular opening,
A railway vehicle structure characterized by In the railway vehicle structure according to claim 1,
An opening reinforcing member provided along an edge of the quadrangular opening provided in the side structure, and an upper corner of the opening reinforcing member on a side of a longitudinal end portion of the railway vehicle structure; The member is provided in an aspect that connects the lower corner on the central portion side of the railway vehicle structure;
A railway vehicle structure characterized by The railway vehicle structure according to claim 7,
The opening reinforcing member is manufactured by welding a plurality of parts;
A railway vehicle structure characterized by The railway vehicle structure according to claim 7,
The opening reinforcing member and the member are integrally manufactured by machining;
A railway vehicle structure characterized by The railway vehicle structure according to claim 7,
The opening reinforcing member is provided with a receiver for an air filter installed in the triangular opening,
A railway vehicle structure characterized by

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