CN111762218A

CN111762218A - Rail vehicle

Info

Publication number: CN111762218A
Application number: CN202010479525.3A
Authority: CN
Inventors: 李云峰; 杨兴清; 郑伟; 刘金林; 周业明
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-10-13

Abstract

The invention relates to the field of railway vehicles and provides a railway vehicle. The rail vehicle comprises a pair of boundary beams, the boundary beams are positioned on two transverse sides of the vehicle body and extend longitudinally along the vehicle body, equipment mounting seats are constructed on the inner sides of the boundary beams, each equipment mounting seat comprises a horizontal transverse rib which horizontally extends inwards along the inner side of the boundary beam and a supporting inclined rib which is positioned below the horizontal transverse rib, one end of each supporting inclined rib is connected with the inner side of the boundary beam, the other end of each supporting inclined rib is connected with the extending end of the horizontal transverse rib, gaps for disconnecting the equipment mounting seats are correspondingly arranged on the pair of boundary beams along the length direction at intervals one by one, each section of horizontal transverse rib is constructed with a first open slot which is formed along the length direction of the horizontal transverse rib, and each supporting inclined rib is; the boundary beam comprises an outer side beam and an inner side beam, wherein the outer side beam comprises a vertical section and an inclined section which extends downwards along the vertical section and inclines inwards; the upper end of the vertical section is in transitional connection with the side wall. The invention can meet the limit requirement, is convenient for mounting the suspension equipment and has high mounting efficiency.

Description

Rail vehicle

Technical Field

The invention relates to the technical field of railway vehicles, in particular to a railway vehicle suitable for wide-rail heavy load.

Background

The rail transit is an essential tool for people to go out due to the characteristics of convenience and quickness. With the increasing demand of foreign ordering, the rail vehicles in china gradually move out of the country, however, different countries have different requirements for the rail vehicles, and for some countries, clear requirements for the clearance of the rail vehicles are provided, and the clearance standards in the country need to be strictly met, so that the rail vehicles need to be redesigned to meet the clearance standards in other countries. In particular, the track itself is a wide track, and the clearance between the track and the platform is very small, which poses a serious challenge to the design of the vehicle.

In addition, conventional rail vehicles, due to the limited space above the vehicle, often require some equipment to be suspended below the vehicle. However, the equipment is usually installed by adopting a cross beam or is separately provided with a fixed seat for installing the equipment, so that the installation is inconvenient and the installation efficiency is low.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

Therefore, the rail vehicle provided by the invention can meet the limit requirement, is convenient for mounting suspension equipment and has high mounting efficiency.

The rail vehicle comprises a vehicle body, wherein the vehicle body comprises an underframe, side walls positioned on two sides of the underframe and a vehicle roof which is positioned above the side walls on the two sides and is respectively connected with the side walls on the two sides; the chassis includes: the pair of side beams are positioned on two transverse sides of the underframe and extend longitudinally along the underframe, each side beam comprises an inner side beam and an outer side beam which are arranged oppositely, each inner side beam is provided with an equipment installation seat, each equipment installation seat comprises a horizontal transverse rib which horizontally extends inwards along the inner side of the inner side beam and a supporting inclined rib which is positioned below the horizontal transverse rib and one end of each horizontal transverse rib is connected with the bottom of the inner side beam, the other end of each horizontal transverse rib is connected with the extending end of the horizontal transverse rib, the pair of side beams are provided with notches for disconnecting the equipment installation seats at intervals in a one-to-one correspondence manner along the length direction, each section of horizontal transverse rib is provided with a first open slot which is arranged along the length direction, and each supporting inclined rib is provided with a second open slot which is in one-to-one correspondence with;

the bottom of the side beam is provided with an apron board mounting part which is respectively connected with the outer side beam and the inner side beam, the outer side beam comprises a vertical section and an inclined section which extends downwards along the vertical section and inclines inwards, and the bottom of the inclined section is in transition connection with the apron board mounting part;

and the upper end of the vertical section is in transitional connection with the side wall.

According to one embodiment of the invention, the suspension device is fixed below the suspension beam, two ends of the suspension beam extend out of two transverse sides of the suspension device, the cushion block is arranged on the horizontal transverse rib, two ends of the suspension beam enter the upper part of the horizontal transverse rib from the gap and are erected on the cushion block, the cushion block is provided with a threaded hole, and the suspension beam is in threaded connection with the threaded hole on the cushion block through a threaded fastener and penetrates through the first open slot and the second open slot to be fixedly connected with the horizontal transverse rib;

the length of the cushion block is matched with the width of the suspension beam.

According to one embodiment of the invention, the brake system further comprises a floor assembly which is positioned above the suspension device and is respectively connected with the pair of side beams, and a wire groove group and at least one pair of brake pipeline groups are arranged in an interlayer between the floor assembly and the suspension device; the wire groove groups are distributed on a central axis in the length direction of the vehicle body, and each pair of brake pipeline groups are respectively and symmetrically distributed on two sides of the central axis;

the central axis of the wire groove group is coincident with the central axis of the vehicle body, the wire groove group comprises at least one pair of slotted holes, each pair of slotted holes are respectively and symmetrically arranged on two sides of the central axis of the vehicle body, and the adjacent slotted holes are mutually separated;

the brake pipeline group comprises a plurality of pipelines which are arranged in parallel in the interlayer, and the adjacent pipelines are mutually separated.

According to one embodiment of the invention, a crane mounting transverse rib, a clearance compensator mounting transverse rib and a sleeper beam mounting transverse rib are respectively connected between the outer side beam and the inner side beam, and the crane mounting transverse rib, the clearance compensator mounting transverse rib and the sleeper beam mounting transverse rib are arranged at intervals from top to bottom;

the equipment mounting seat and the inner side beam are integrally formed in a stretching mode;

the apron board mounting part comprises an apron board mounting transverse rib and an apron board mounting sliding groove arranged on the apron board mounting transverse rib; reinforcing longitudinal bars are connected between the apron board mounting transverse bars and the sleeper beam mounting transverse bars; the joint of the reinforcing longitudinal rib and the sleeper beam mounting transverse rib and the joint of the inner side beam and the apron board mounting transverse rib are connected with reinforcing inclined ribs;

the bottom of the inclined section is in arc transition connection with the apron board mounting transverse rib.

According to one embodiment of the invention, a seat mounting part is further arranged at the part of the side beam above the crane mounting transverse rib, and the seat mounting part comprises a seat mounting chute and a plurality of connecting ribs which are dispersed to the periphery by taking the bottom of the seat mounting chute as a connecting point;

the outer surface of the seat mounting chute is provided with a mounting inclined plane inclined towards the inside of the vehicle and a mounting plane in transitional connection with the mounting inclined plane, the bottom of a framework of the seat is connected to the seat mounting chute through an inclined strut, a connecting piece extending out of the mounting inclined plane is preassembled in the seat mounting chute, and the bottom of the inclined strut is connected with the connecting piece and abuts against the mounting inclined plane;

the side face of the framework of the seat is connected with the side wall, the side wall is located at the lower part of the seat and is provided with an electric heating assembly used for heating the interior of the vehicle, and the electric heating assembly is supported on the mounting plane.

According to one embodiment of the invention, the vehicle body further comprises a door clearance compensator, and an installation gap for installing the door clearance compensator is reserved on the floor assembly at the door area of the vehicle body;

the door clearance compensator comprises a floor body, a pedal body and a driving mechanism, wherein the floor body is fixedly embedded at the installation gap;

the pedal body is connected to the bottom surface of the floor body in a sliding manner;

the driving mechanism is used for driving the pedal body to horizontally stretch along the floor body, the rear end of the floor body is fixedly mounted on a cross beam of the vehicle body and is in butt joint with the floor assembly, and the upper surface of the floor body is flush with the upper surface of the floor assembly;

the mounting gap is formed by the floor in the vehicle body door area and is opened to the boundary beam of the vehicle body, and the front end of the floor body is flush with the outer side of the outer side beam.

According to one embodiment of the invention, a sliding rail and a sliding block which are connected in a sliding manner are arranged between the pedal body and the floor body;

the sliding rail is fixed on the bottom surface of the floor body;

one side, facing the sliding rail, of the sliding block is provided with a sliding groove, one side, facing away from the sliding groove, of the sliding block is fixedly connected with the upper surface of the pedal body, and the sliding groove of the sliding block is clamped outside the sliding rail and is in sliding connection with the sliding rail;

the bottom surface of the floor body is provided with a pair of linear guide grooves for mounting the slide rails, the cross section of each linear guide groove is in a convex shape with a small upper part and a big lower part, an upper opening groove of each linear guide groove is matched with the slide rail, and a gap is reserved between a lower opening groove of each linear guide groove and the outside of the slide block;

the pair of linear guide grooves are respectively arranged on two sides of the driving mechanism.

According to one embodiment of the invention, the slide rail is fixedly connected with the bottom surface of the floor body through a fastening bolt, and the slide block is fixedly connected with the upper surface of the pedal body through a fastening bolt;

the floor body with the footboard body is by aluminum alloy cavity section bar extrusion, this internal shaping of floor has hollow die cavity, the bottom surface interval division of die cavity has one row of parallelogram hole, fastening bolt's link is fixed with the screw seat, the shape of screw seat be with parallelogram hole assorted parallelogram, the width of die cavity with the length phase-match of screw seat, the screw seat is followed the length direction in parallelogram hole extends into in the die cavity, and the rotation makes the length both sides of screw seat support and lean on the both sides inner wall of die cavity width.

According to one embodiment of the invention, the driving mechanism is a cylinder, the cylinder comprises a cylinder body and a piston which extends and retracts along the cylinder body, the fixed end of the cylinder body is rotatably connected with the bottom surface of the rear end of the floor body through a first pin shaft, the extending end of the piston is rotatably connected with the bottom surface of the front end of the pedal body through a second pin shaft, the first pin shaft and the second pin shaft are arranged in parallel, and the axial directions of the first pin shaft and the second pin shaft are perpendicular to the extending and retracting direction of the piston; the cylinder body is provided with a stretching air inlet, a retracting air inlet and a locking air inlet, and the stretching air inlet, the retracting air inlet and the locking air inlet are respectively used for being connected to a vehicle body air supply unit through air channels; at least one of the extension air inlet, the retraction air inlet and the lock-up air inlet is provided with a throttle valve.

According to an embodiment of the present invention, the cylinder is provided with a magnetic switch, a magnetic body of the magnetic switch is disposed on the piston in the cylinder body, a pair of moving contacts of the magnetic switch is disposed at an interval outside the cylinder body, a distance between the two moving contacts is equal to a preset telescopic stroke of the cylinder, and one of the moving contacts is disposed corresponding to a position where the piston does not extend and the magnetic body is disposed.

According to one embodiment of the invention, the vehicle body comprises two motor cars, the head end of each motor car is provided with a cab, and the front end of each cab is provided with a full-automatic coupler;

an internal combustion power pack and a diesel engine connected with the internal combustion power pack through an oil way are hung on the underframe of each motor car;

the top of each bullet train is provided with a pantograph;

one or two trailers are connected between the two motor trains, and the motor trains and the trailers or the trailers are connected through semi-permanent traction rods; or the like, or, alternatively,

and a trailer is omitted between the two motor trains, and the two motor trains are connected through a semi-permanent traction rod.

According to one embodiment of the invention, the vehicle body is made of an aluminum alloy;

the internal combustion power pack and the diesel engine are respectively hung on a chassis of the motor car through a mounting frame, and the mounting frame is mounted on the chassis through a shock absorber.

One or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

in the rail vehicle provided by the embodiment of the invention, a pair of boundary beams are positioned at two transverse sides of a chassis of a vehicle body and extend along the longitudinal direction of the chassis, equipment installation seats are constructed at the inner sides of the boundary beams, each equipment installation seat comprises a horizontal transverse rib which horizontally extends inwards along the inner side of the boundary beam and a supporting inclined rib which is positioned below the horizontal transverse rib and one end of which is connected with the bottom of the inner side of the boundary beam, the other end of which is connected with the extending end of the horizontal transverse rib, notches which disconnect the equipment installation seats are correspondingly arranged at intervals along the length direction of the boundary beams one by one, each section of horizontal transverse rib is constructed with a first open slot which is formed along the length direction of the horizontal transverse rib, and each supporting inclined rib is constructed with a second open slot which is corresponding to the first open slot one. When the suspension equipment is hung, the suspension equipment stretches across the width of the whole vehicle, enters the upper part of the horizontal transverse rib from the notch and is fixed on the equipment mounting seat through the fastener, so that the suspension equipment is convenient to mount and high in mounting efficiency, the mounting and dismounting of the existing vehicle equipment are facilitated, and the construction time is saved;

in the embodiment, the structure of the boundary beam is improved, the boundary beam comprises an inner side beam and an outer side beam, the outer side beam comprises a vertical section and an inclined section which extends downwards along the vertical section and inclines inwards, and the bottom of the inclined section is in transitional connection with a skirt board mounting part connected between the bottoms of the inner side beam and the outer side beam; and the upper end of the vertical section is in transitional connection with the side wall. Therefore, the distance between the two opposite inclined sections of the outer side beams on the two opposite sides of the vehicle body is reduced, and the vehicle can be particularly suitable for wide-rail vehicles (the rail gauge is 1676mm) which are required by the vehicle body, and the requirements on the limit are strictly limited.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic illustration of a partial structure of a rail vehicle provided by an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional structural view of a side sill of a railway vehicle according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional structural view of a rail vehicle provided by an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional structural view of a rail vehicle frame provided by an embodiment of the present invention;

FIG. 5 is a schematic front view of a railway vehicle according to an embodiment of the present invention;

FIG. 6 is a schematic bottom view of the structure of FIG. 5;

FIG. 7 is a schematic structural view of a door lash compensator according to an embodiment of the present invention showing the extended state of the floor body and the step body;

FIG. 8 is a schematic structural view of a door lash compensator according to an embodiment of the present invention showing a retracted state of a floor body and a step body;

FIG. 9 is a schematic structural view of a door lash compensator showing an extended state of a drive mechanism in accordance with an embodiment of the present invention;

FIG. 10 is a schematic structural view of a door lash compensator showing a retracted state of a drive mechanism in accordance with an embodiment of the present invention;

FIG. 11 is a schematic front view of a slide rail and a slide block in a door lash compensator according to an embodiment of the present invention;

FIG. 12 is a schematic side view of a slide rail and a slide block in a door lash compensator according to an embodiment of the present invention;

FIG. 13 is a schematic front view showing the connection between the floor body and the step body via the slide rail and the slide block in the door lash compensator according to the embodiment of the present invention;

FIG. 14 is a schematic front view of a door lash compensator according to an embodiment of the present invention showing no slide rails or slides mounted between the floor body and the pedal body;

FIG. 15 is a cross-sectional structural view of a railway vehicle showing a door lash compensator in a retracted state in accordance with an embodiment of the present invention;

fig. 16 is a schematic cross-sectional view of a rail vehicle showing a door lash compensator in an extended state in accordance with an embodiment of the present invention.

Reference numerals:

10: a boundary beam; 101: an outer side member; 101-1: a vertical section; 101-2: an inclined section; 102: an inboard beam;

20: an equipment mounting base; 201: horizontal transverse ribs; 202: supporting the inclined ribs;

30: a suspension device; 301: a suspension beam; 302: lifting lugs; 40: cushion blocks; 50: a threaded fastener;

60: a seat mounting portion; 601: a seat mounting chute; 602: connecting ribs; 61: an electrical heating assembly; 62: a seat; 63: bracing;

70: a floor mounting section; 701: a first floor lap joint bar; 702: second floor lap joint ribs; 703: a floor positioning groove;

80: installing transverse ribs on the secondary floor;

90: installing transverse bars on the crane; 100: the clearance compensator is provided with a transverse rib; 110: installing transverse ribs on the sleeper beam;

120: a skirt board mounting part; 121: the apron board is provided with a sliding chute; 122: reinforcing the longitudinal ribs; 123: reinforcing the inclined ribs; 124: the apron board is provided with a transverse rib;

130: the floor is formed; 140: a slot group; 150: a brake pipe set;

160: a floor body; 161: a linear guide groove; 170: a pedal body; 180: a cylinder; 181: extending out of the air inlet; 182: retracting the air inlet; 183: locking the air inlet; 190: a first pin shaft; 200: a second pin shaft; 210: a magnetic control switch; 220: a slide rail; 230: a slider; 240: adjusting the gasket; 250: fastening a bolt; 260: a screw seat; 270: a cross beam;

280: a side wall; 290: a vehicle roof; 300: a chassis; 310: a skirt board; 320: a station;

MC1, MC 2: a bullet train; ri: and (4) towing the trailer.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Referring to fig. 4, the rail vehicle includes a vehicle body, the vehicle body includes an underframe 300, side walls 280 located at two sides of the underframe 300, and a roof 290 located above the side walls 280 and connected to the side walls 280, respectively, an interior space is enclosed by the underframe 300, the side walls 280, and the roof 290, and correspondingly, the outside of the interior space is outside the vehicle.

Referring to fig. 1 to 4, in a rail vehicle according to an embodiment of the present invention, an underframe 300 includes a pair of side beams 10, specifically, the pair of side beams 10 are located on both lateral sides of the underframe 300 and extend in a longitudinal direction of the underframe 300, an equipment mounting seat 20 is configured on an inner side of the side beam 10, the equipment mounting seat 20 includes a horizontal transverse rib 201 horizontally extending inward along the inner side of the side beam 10, and a support diagonal rib 202 located below the horizontal transverse rib 201 and having one end connected to an inner bottom of the side beam 10 and the other end connected to an extending end of the horizontal transverse rib 201, and a support strength of the horizontal transverse rib 201 is enhanced by the arrangement of the support diagonal rib 202. The horizontal transverse ribs 201, the supporting inclined ribs 202 and the inner sides of the boundary beams 10 form a triangular stable structure together, and the triangular stable structure is high in strength and good in structural stability.

As shown in fig. 2, in the present embodiment, the skirt board mounting part 120 is disposed at the bottom of the side beam 10 and connected to the outer side beam 101 and the inner side beam 102, respectively, the outer side beam 101 includes a vertical section 101-1 and an inclined section 101-2 extending downward along the vertical section 101-1 and inclined inward, and the bottom of the inclined section 101-2 is in transition connection with the skirt board mounting part 120; the upper end of the vertical section 101-1 is in transitional connection with the sidewall 280. Therefore, the distance between the two opposite inclined sections 101-2 of the outer side beams 101 on the two opposite sides of the vehicle body is reduced, the vehicle body is particularly suitable for wide-rail vehicles (the track gauge is 1676mm) which are required by the vehicle body, the limit is strictly limited, the vehicle limit is solved, and the curve passing capacity of the vehicle is improved.

Further, a pair of boundary beams 10 are provided with gaps (not shown in the figure) for disconnecting the equipment mounting seats 20 at intervals along the length direction, that is, each boundary beam 10 is provided with a plurality of gaps at intervals, the boundary beams 10 are divided into a plurality of sections, and the gaps on two adjacent boundary beams 10 are opposite in position, so that the hanging equipment 30 can be conveniently used during installation. Each section of horizontal transverse rib 201 is provided with a first open slot (not shown in the figure) along the length direction, and the number of the first open slots can be set as required, and can be one or more; the support diagonal ribs 202 are configured with second open grooves (not shown) corresponding one-to-one to the first open grooves. Namely, the first opening groove and the second opening groove are long holes.

The "lateral direction of the underframe 300" refers to the vehicle width direction, and the "longitudinal direction of the underframe 300" refers to the vehicle length direction. Further, the direction of the center axis directed toward the vehicle body is "inward".

Referring to fig. 1, a suspension device 30 is arranged under a rail vehicle, the suspension device 30 is fixed below a suspension beam 301, the suspension device 30 and the suspension beam 301 form an equipment module, two ends of the suspension beam 301 extend out from two lateral sides of the suspension device 30, two ends of the suspension beam 301 are provided with lifting lugs 302 which extend upwards and are bent outwards horizontally, the lifting lugs 302 are L-shaped, two ends of the suspension beam 301 enter the upper portion of a horizontal transverse rib 201 from a notch, specifically, a horizontal bent portion of the lifting lug 302 enters the upper portion of the horizontal transverse rib 201 and is erected on the horizontal transverse rib 201, and the suspension beam 301 and the horizontal transverse rib 201 are fastened and connected through a fastener which penetrates through a first open slot and a second open slot. Specifically, a connecting hole is formed in the horizontal bent portion of the lifting lug 302, and a fastening member is used to penetrate through the connecting hole and the first opening groove to fasten and connect the suspension beam 301 and the horizontal transverse rib 201. Thereby securing the suspension device 30 to the device mount 20 across the full vehicle width. The suspension device 30 is convenient to install and high in installation efficiency. The device is beneficial to the installation and the disassembly of the existing vehicle equipment, and saves the construction time.

Referring to fig. 1 again, according to an embodiment of the present invention, a cushion block 40 is disposed between the suspension beam 301 and the horizontal transverse rib 201, a threaded hole is disposed on the cushion block 40, the fastener is a threaded fastener 50, such as a bolt, specifically, after the suspension device 30 is raised to an installation height, the cushion block 40 is first installed above the horizontal transverse rib 201 of the side beam 10, the suspension beam 301 is then installed on the cushion block 40, the threaded fastener 50 passes through a connecting hole on the lifting lug 302 and is in threaded connection with the threaded hole on the cushion block 40, a lower end of the bolt passes through the first open slot, and of course, according to the length of the bolt, the bolt rod portion may be sleeved with a threaded nut from below the second open slot and tightened. By arranging the cushion block 40, the suspension beam 301 is conveniently and firmly connected with the equipment mounting seat 20, and the suspension equipment 30 is convenient to fix.

For structural optimization, the length of the cushion block 40 is matched with the width of the suspension beam 301, and the width of the cushion block 40 is matched with the width of the horizontal transverse rib 201.

In the present embodiment, the first opening groove and the second opening groove are both provided as long holes, so that the installation position of the suspension beam 301 can be conveniently adjusted along the length direction of the device installation base 20.

According to an embodiment of the present invention, the vehicle further comprises a floor assembly 130 located above the suspension device 30 and connected to the pair of side beams 10, respectively, and a wire groove assembly 140 and at least a pair of brake pipe assemblies 150 are arranged in an interlayer between the floor assembly 130 and the suspension device 30. The brake pipeline group 150, the line groove group 140 and the like are all located above the suspension device, layered arrangement of the suspension device and the lines is achieved in the height direction, and space division is clear.

According to an embodiment of the present invention, the slot groups 140 are arranged on a central axis in a longitudinal direction of the vehicle body, and each pair of the brake pipe groups 150 are symmetrically arranged on both sides of the central axis. Therefore, the circuit layout between the suspension devices 30 is simple, and the length of the routing pipes between the suspension devices 30 is effectively shortened.

It will be appreciated that the wire groove set 140 and the brake pipe set 150 of the present embodiment are configured to accommodate high-voltage cables and low-voltage cables of the suspension device 30 therein, so as to utilize the wire groove set 140 and the brake pipe set 150 to properly arrange and plan the cables of the suspension device 30.

The floor composition 130 of this embodiment includes a sub-floor and a cold-proof layer laid on at least one side of the sub-floor. That is, a cold-proof layer is provided on the upper surface and/or the lower surface of the sub-floor.

According to one embodiment of the invention, the center axis of the wire chase 140 coincides with the center axis of the vehicle body to ensure that the wire chase 140 is centered in the sandwich under the vehicle. The slot group 140 includes at least one pair of slots, each pair of slots being symmetrically arranged on both sides of a central axis of the vehicle body, and adjacent slots being separated from each other. So that the pair of the slotted holes are symmetrical relative to the central axis of the vehicle body. The arrangement of the wire groove group 140 can ensure that the bearing load and the gravity center position of the vehicle body are uniformly distributed, and the stability, the reliability and the safety of the vehicle operation are improved. In addition, the adjacent slotted holes are mutually separated, so that the line interference between the cables is avoided.

According to one embodiment of the present invention, the brake pipe set 150 includes a plurality of pipes juxtaposed in a sandwich with adjacent pipes being isolated from each other. The structural layout of the brake pipeline group 150 can ensure that the vehicle body bears load and the gravity center position is uniformly distributed, improve the stability, reliability and safety of vehicle operation, and can avoid the line interference between cables through pipeline separation.

It is understood that the slots of the slot set 140 of the present embodiment are horizontally arranged in parallel in the interlayer. Similarly, the pipes of the brake pipe set 150 are horizontally arranged in parallel in the interlayer. The arrangement enables the wire groove group 140 and the brake pipeline group 150 to be tightly attached to the lower surface of the vehicle body, so that sufficient space for maintenance, ventilation and heat dissipation and wiring installation is reserved between the suspension device 30 and between the suspension device 30 and the vehicle body, and the layout and the circuit layout of the suspension device 30 are more reasonable.

According to one embodiment of the invention, a crane mounting transverse rib 90, a clearance compensator mounting transverse rib 100 and a sleeper beam mounting transverse rib 110 are respectively connected between the outer side beam 101 and the inner side beam 102, and the crane mounting transverse rib 90, the clearance compensator mounting transverse rib 100 and the sleeper beam mounting transverse rib 110 are arranged at intervals from top to bottom; by providing the crane mounting cross bar 90, the clearance compensator mounting cross bar 100, and the bolster mounting cross bar 110, the crane, the clearance compensator, and the bolster can be mounted, respectively, and the structural strength between the outer side member 101 and the inner side member 102 can be improved.

The equipment mounting base 20 and the inner side beam 102 of the boundary beam 10 are integrally formed in a stretching mode, and therefore the precision is high and the strength is good.

As shown in fig. 2, according to an embodiment of the present invention, the skirt mounting portion 120 is provided at the bottom of the side sill 10, and the skirt mounting portion 120 includes a skirt mounting cross rib 124 and a skirt mounting chute 121 provided on the skirt mounting cross rib 124; the skirt panels 310 can be fixed to the edge rails 10 by providing the skirt panels with an attachment interface to the edge rails 10 as shown in fig. 4. A reinforcing longitudinal bar 122 is connected between the apron board mounting transverse bar 124 and the sleeper beam mounting transverse bar 110; a reinforcing diagonal rib 123 is connected to a joint between the reinforcing longitudinal rib 122 and the bolster mounting transverse rib 110 and a joint between the inner side member 102 and the apron mounting transverse rib 124. The apron board mounting transverse rib 124, the reinforcing longitudinal rib 122, the reinforcing inclined rib 123, the sleeper beam mounting transverse rib 110 and the inner side beam 102 are enclosed to form a frame structure, and further the structural strength of the apron board mounting part 120, particularly the apron board mounting sliding groove 121 is increased.

According to an embodiment of the present invention, the inside beam 102 is vertically disposed, and the inside of the inside beam is a vertical plane, so that the equipment mounting base 20 is conveniently formed, and after the equipment mounting base 20 hangs the suspension equipment 30, the inside beam 102 is entirely subjected to downward gravity, and the carrying capacity is high. The bottom of the inclined section 101-2 of the outer side beam 101 is in arc transitional connection with the apron board mounting transverse rib 124, so that the boundary beam 10 is good in integrity and high in structural strength, and the requirement of a vehicle limit is met.

In one embodiment of the present invention, as shown in fig. 2 and 3, the side sill 10 is further provided with a seat mounting portion 60 at a position above the crane mounting cross bar 90, and the seat mounting portion 60 is used for mounting the seat 62. Specifically, the seat mounting portion 60 includes a seat mounting chute 601 and a plurality of connecting ribs 602 that diverge to the periphery with the bottom of the seat mounting chute 601 as a connecting point, and the connecting ribs 602 are connected to the positions of the crane mounting cross bar 90, the outer side beam 101, and the like, so as to enhance the supporting strength at the seat mounting chute 601.

Through setting up seat installation portion 60, can provide the installation interface on the boundary beam 10 for seat 62 in the car to realize that the installation of seat 62 is fixed on the boundary beam 10 in the car, need not additionally to set up the part of installation seat 62 moreover, the installation of seat 62 is convenient, and the installation effectiveness is high, saves the cost.

Further, in order to facilitate the installation of the seat 62, an installation inclined plane inclined towards the inside of the vehicle and an installation plane transitionally connected with the installation inclined plane are configured on the outer surface of the seat installation chute 601, the bottom of the framework of the seat 62 is connected to the seat installation chute 601 through an inclined strut 63, a connecting piece extending out of the installation inclined plane, such as a T-shaped bolt, is preinstalled in the seat installation chute 601, the head of the T-shaped bolt is located in the seat installation chute 601, a stud of the T-shaped bolt extends out of the seat installation chute 601, and the bottom of the inclined strut 63 is connected with the connecting piece, namely the stud, and abuts against; the mounting ramps assist in positioning the diagonal braces 63 to facilitate secure mounting of the seat 62.

It is worth mentioning that the side of the frame of the seat 62 is connected to the side wall 280, so as to form a three-point stable connection together with the inclined strut 63, and the stability of the seat 62 is good.

In addition, the side wall 280 is provided with an electric heating assembly 61 for heating the interior of the vehicle at a position below the seat 62, the electric heating assembly 61 is supported on the mounting plane, the interior of the vehicle can be heated at a lower temperature through the electric heating assembly 61, and the electric heating assembly 61 does not occupy an effective space in the vehicle because the electric heating assembly 61 is located below the seat 62.

In some embodiments of the invention, the seat mount 60 is provided with a floor mount 70 on the inside thereof, the floor mount 70 being used to mount a floor assembly 130.

Specifically, the floor mounting portion 70 includes a first floor overlapping rib 701 and a second floor overlapping rib 702 which are arranged from top to bottom at an interval, the length of the second floor overlapping rib 702 is greater than that of the first floor overlapping rib 701, and a floor positioning groove 703 is arranged on the first floor overlapping rib 701. Through setting up floor positioning groove 703, be convenient for fix a position when constituteing 130 equipment with the floor, through setting up first floor overlap joint muscle 701 and the second floor overlap joint muscle 702 that length is unequal, be convenient for realize the overlap joint installation of floor constitution 130 on boundary beam 10.

By providing the floor mounting portion 70, a mounting interface of the floor assembly 130 on the edge beam 10 can be provided, so that the floor assembly 130 can be mounted and fixed on the edge beam 10. When the floor assembly 130 is installed, the two connection ends of the floor assembly 130 are respectively overlapped on the first floor overlapping rib 701 and the second floor overlapping rib 702, and then the two connection ends of the floor assembly 130 are respectively welded with the first floor overlapping rib 701 and the second floor overlapping rib 702.

In some embodiments of the present invention, a secondary floor mounting cross bar 80 is provided below the floor mounting portion 70 on the inner side of the crane mounting cross bar 90 to provide a mounting interface for the secondary floor on the side sill 10, thereby achieving mounting and fixing of the secondary floor on the side sill 10.

As shown in fig. 7 to 16, the rail vehicle according to the embodiment of the present invention further includes a door clearance compensator, and an installation gap for installing the door clearance compensator is reserved in the floor assembly 130 at the door area of the vehicle body.

Specifically, the door lash compensator includes a floor body 160, a pedal body 170, and a drive mechanism; the floor body 160 is fixedly embedded at the installation gap, the shape of the floor body 160 can be square or rectangular, and the installation gap is square or rectangular corresponding to the size and shape of the floor body 160, so that the floor body 160 can be well matched with the floor composition 130 of the vehicle body door area after being installed.

In order to facilitate better matching and installation of the door clearance compensator and the vehicle body, the rear end of the floor body 160 is fixedly installed on a cross beam 270 of the vehicle body and is in butt joint with the floor, the door clearance compensator is borne by the vehicle body cross beam 270, and therefore the door clearance compensator is high in bearing capacity and reliability.

Further, the upper surface of the floor body 160 is flush with the upper surface of the floor, so that the door clearance compensator is well matched with a vehicle after being installed, steps at the door opening are reduced, and the trafficability is improved.

Further, the mounting notch is formed by a floor of the vehicle body door region to constitute a side sill opened to the vehicle body, and the front end of the floor body 160 is flush with the outer side of the outside member. The installation back does not occupy the car space, and the rear end of floor body 160 is equipped with sealed the pad with the floor butt joint department of automobile body, and the leakproofness is good, and the floor cloth unanimous with the floor upper surface laying of automobile body has been laid to the upper surface of floor body 160 to make door clearance compensator and automobile body floor form an organic whole, the matching degree is high.

It is worth mentioning that the door lash compensator is directly or indirectly mounted to the lash compensator mounting cross rib 100.

In this embodiment, the pedal body 170 is slidably connected to the bottom surface of the floor body 160, and specifically, the pedal body 170 can slide linearly along the floor body 160 in a direction pointing to the vehicle platform 320.

In this embodiment, the front end of the floor body 160 and the front end of the pedal body 170 are defined as the ends close to the platform 320, and the rear end of the floor body 160 and the rear end of the pedal body 170 are defined as the ends far from the platform 320.

The driving mechanism is used for driving the pedal body 170 to horizontally stretch along the floor body 160, the stretching mode has high reliability, the driving mechanism provides power for the linear sliding of the pedal body 170,

therefore, when the pedal body 170 needs to be extended, the driving mechanism provides power for extending to drive the pedal body 170 to be extended, and when the pedal body 170 needs to be retracted, the driving mechanism provides power for retracting to drive the pedal body 170 to be retracted.

The door clearance compensator of the embodiment is embedded at the installation gap as an independent whole, so that the occupied space size is small, the installation is convenient, the reliability is high, the height of the upper surface of the floor body 160 after installation is the same as that of the floor in a passenger room, the matching degree with the whole body of a vehicle is high, steps at a doorway are reduced, and the trafficability of equipment such as passengers or wheelchairs is improved; and facilitates individual control of the door lash compensator.

As shown in fig. 11 to 14, according to an embodiment of the present invention, a sliding rail 220 and a sliding block 230 are slidably connected between the pedal body 170 and the floor body 160, the sliding block 230 slides along the sliding rail 220 when the pedal body 170 slides, and the sliding rail 220 guides the sliding block 230, so as to ensure stability and smoothness of the pedal body 170 during sliding. Further, the sliding rail 220 is fixed on the bottom surface of the floor body 160, and the fixing manner may be a fastener fixing connection or other fixing connection form; the slider 230 is equipped with the spout towards the one side of slide rail 220, the one side that the slider 230 deviates from the spout is connected with the last fixed surface of footboard body 170, fastener fixed connection or other fixed connection forms can be adopted to concrete fixed mode, the spout card of slider 230 is established outside slide rail 220 and with slide rail 220 sliding connection, the spout can wrap up the well lower part of slider 230, make the slider 230 installation back, there is certain clearance slider 230 and floor body 160's bottom surface, thereby avoid slider 230 slip in-process and floor body 160 to take place the friction.

According to an embodiment of the present invention, the sliding connection between the sliding rail 220 and the sliding groove is sealed with a ball, and a lubricant is disposed in the sealed channel where the ball is disposed; the sliding rail 220 is in contact with the sliding block 230 through a ball, the sliding block 230 is in rolling friction when moving on the sliding rail 220, the resistance is small, and the pedal body 170 does not generate large transverse displacement when extending out and retracting, so that the stability of the door clearance compensator is improved; the balls are self-lubricated in the sealing channels through the lubricant, so that the maintenance period is shortened, and the lubricant can be lubricating oil or lubricating grease and the like. Specifically, one row or two rows of balls may be disposed at the joint of the slide rail 220 and the slider 230, first, grooves for mounting balls are disposed at the opposite positions of the slide rail 220 and the slider 230, respectively, the length direction of the grooves is along the sliding direction, the two grooves are opposite to each other to form a sealed channel, half of the balls are disposed in the grooves of the slide rail 220, and half of the balls are disposed in the grooves of the slider 230, so as to connect the slide rail 220 and the slider 230 together; through the sealing treatment, the lubricant loss is avoided, so that the frequency of increasing the lubricant is reduced, and impurities such as dust can be prevented from entering the joint of the sliding rail 220 and the sliding block 230.

In order to reduce or avoid the sliding friction generated by the contact between the sliding chute and the sliding rail 220 to cause the temperature rise in the sliding process, two sides of the sliding rail 220 along the length direction are configured as concave surfaces, and a gap exists between the inner wall of the sliding chute and the sliding rail 220 at the positions of the concave surfaces.

According to an embodiment of the present invention, the bottom surface of the floor body 160 is configured with a pair of linear guide slots 161 for mounting the slide rails 220, the cross-sectional shape of the linear guide slots 161 is a convex shape with a small top and a big bottom, i.e. the opening of the lower opening slot of the linear guide slot 161 is larger than the opening of the upper opening slot, and the lower opening slot is communicated with the upper opening slot, the upper opening slot of the linear guide slot 161 is matched with the slide rail 220, and a gap is left between the lower opening slot of the linear guide slot 161 and the outside of; through directly shaping linear guide 161 on floor body 160, directly block slide rail 220 into upper portion open slot and upper portion open slot interference fit when slide rail 220 installs, need not to adjust the position etc. of slide rail 220, simple to operate, the location is effectual, and slide rail 220 installation back is firm reliable. The pair of linear guide grooves 161 are arranged in parallel so that the pair of slide rails 220 are also arranged in parallel with each other after installation.

The pair of linear guide grooves 161 are respectively formed at both sides of the driving mechanism, the driving mechanism may be located at a middle position of the door gap compensator, and the pair of linear guide grooves 161 may be symmetrically disposed with respect to the driving mechanism, so that the sliding of the pedal body 170 is more stable.

According to an embodiment of the present invention, the adjusting shim 240 may or may not be provided between the sliding block 230 and the pedal body 170, that is, when the distance between the pedal body 170 and the floor body 160 does not need to be adjusted, the adjusting shim 240 may not be installed, and when the distance between the pedal body 170 and the floor body 160 needs to be adjusted, the height difference between the pedal body 170 and the floor body 160 may be adjusted by increasing or decreasing the adjusting shim 240 between the pedal body 170 and the sliding block 230 when the sliding block 230 is installed. The height difference between the pedal body 170 and the floor body 160 is the sum of the thickness of the floor body 160 and the gap between the pedal body 170 and the floor body 160, the thickness of the floor body 160 is small, and the gap between the pedal body 170 and the floor body 160 is adjustable, so that the height difference between the pedal body 170 and the floor body 160 is small as a whole, and the requirement of getting on or off special equipment such as a wheelchair can be met.

In one embodiment, the slide rail 220 is fixedly connected to the bottom surface of the floor body 160 through the fastening bolt 250, and the slider 230 is fixedly connected to the upper surface of the pedal body 170 through the fastening bolt 250, so as to ensure the connection strength and the connection reliability.

According to an embodiment of the present invention, the floor body 160 and the pedal body 170 are formed by extrusion of aluminum alloy hollow sections, which has high strength, light weight and good forming effect, and various required interfaces can be formed at one time.

Further, as shown in fig. 15 to 16, a hollow cavity is formed in the floor body 160, a row of parallelogram holes are spaced on the bottom surface of the cavity, the length direction of the parallelogram holes can be along the length direction of the cavity, a screw seat 260 is fixed to a connection end (an end far away from the head of the fastening bolt 250) of the fastening bolt 250, the screw seat 260 is shaped like a parallelogram matched with the parallelogram holes, the width of the cavity is matched with the length of the screw seat 260, the screw seat 260 extends into the cavity along the length direction of the parallelogram holes, and rotates by a certain angle to enable two sides of the length of the screw seat 260 to abut against inner walls of two sides of the width of the cavity, so that the screw seat 260 is tightly clamped in the cavity, and the stability and the firmness of the fastening bolt 250 after installation are ensured. The screw holder 260 may have an elliptical shape, and the same function can be achieved.

When the screw seat 260 is subjected to larger vertical impact, the section bar rib plate can effectively play a supporting role, and the abnormal stress concentration of the structure caused by the cavity at the position can be avoided.

Of course, the specific number of the fastening bolts 250 can be selected according to actual needs. The fastening bolt 250 adopts the connection form, can be quickly disassembled and assembled, and is convenient to replace. Accordingly, the slide rail 220 is provided with a plurality of through holes at intervals along the length direction thereof, through which the fastening bolts 250 pass, and the through holes may be configured as countersunk holes in which the heads of the fastening bolts 250 are located in order to prevent the heads of the fastening bolts 250 from being exposed.

According to an embodiment of the present invention, a pair of mounting interfaces symmetrical with respect to a central axis of the pedal body 170 are formed on the upper surface of the pedal body 170 at a portion for connecting with the floor body 160, the slider 230 is mounted in the mounting interfaces and fixedly connected with the pedal body 170 through the fastening bolt 250, and anti-slip lines are formed on the upper surface of the pedal body 170 at regions avoiding the pair of mounting interfaces, so as to increase anti-slip effect and avoid slipping; the upper surface front end shaping of floor body 160 has the step that is used for with the lower flange laminating of the door body to after the door is closed, the lower flange and the laminating of step department of the door body increase sealed effect on the one hand, and on the other hand leaves the installation space for lower flange, lower flange and step laminating back, the outside of lower flange and floor body 160's front end parallel and level.

According to an embodiment of the present invention, as shown in fig. 9 to 10, the driving mechanism is a cylinder 180, two ends of the cylinder 180 are provided with parallel pin holes, and the pin holes are horizontally arranged, the cylinder 180 includes a cylinder body and a piston extending and retracting along the cylinder body, a fixed end of the cylinder body is rotatably connected to a bottom surface of a rear end of the pedal body 160 through a first pin 190, an extending end of the piston is rotatably connected to a bottom surface of a front end of the pedal body 170 through a second pin 200, a mounting seat is formed on each of the bottom surface of the rear end of the pedal body 160 and the bottom surface of the front end of the pedal body 170, the first pin 190 and the second pin 200 respectively pass through a rotation connection hole of the mounting seat to mount the cylinder 180 with the corresponding pin hole, one end of the cylinder 180 after mounting is connected to the pedal body 160. The first pin shaft 190 and the second pin shaft 200 are arranged in parallel and horizontally, and the axial direction of the first pin shaft 190 and the second pin shaft 200 is perpendicular to the telescopic direction of the piston, so that the pedal body 170 has the capability of rotating along a vertical plane, and when vertical relative displacement is generated between the pedal body 170 and the floor body 160, the air cylinder 180 can rotate along the pin shafts, and internal stress cannot be generated.

According to an embodiment of the present invention, the cylinder body is provided with a protrusion air inlet 181, a retraction air inlet 182 and a locking air inlet 183, the protrusion air inlet 181 is provided at the rear end of the cylinder body, that is, at the rear end of the piston, the retraction air inlet 182 is provided at the front end of the cylinder body, the locking air inlet 183 is provided at the front end of the cylinder body where the cylinder port is provided with a spring plug, and the protrusion air inlet 181, the retraction air inlet 182 and the locking air inlet 183 are respectively used for connecting to the vehicle body air supply unit through air passages, so that the vehicle body air supply unit supplies air to the air cylinder 180. When air is supplied to the extension air inlet 181, the piston is extended; when air is supplied to the retract air intake 182, the piston retracts; the premise that the extension air inlet 181 and the retraction air inlet 182 work normally is that the locking air inlet 183 can supply air normally, and the spring plug can be opened when the locking air inlet 183 supplies air, so that the air passages are communicated, at the moment, the piston is telescopic according to specific requirements, and the piston is locked when the locking air inlet 183 loses air and cannot stretch out and draw back. Therefore, when an emergency or a fault occurs, the locking air inlet 183 can be directly cut off, the piston stops at the original position, and the situation that a passenger steps on the pedal body 170 to be empty can not occur, so that the safety is improved.

According to an embodiment of the present invention, a throttle valve is provided at least one of the extension intake port 181, the retraction intake port 182, and the latch-up intake port 183, for example, a throttle valve may be provided at each of the extension intake port 181, the retraction intake port 182, and the latch-up intake port, or a throttle valve may be provided at one or both of the intake ports, and the specific arrangement may be selected as desired. The adjustment of the expansion speed of the piston can be realized by arranging a throttle valve.

According to an embodiment of the present invention, the cylinder 180 is provided with a magnetic switch 210, when the piston inside the cylinder 180 passes through, the magnetic switch 210 receives a corresponding signal, so as to provide the specific position of the piston of the cylinder 180 on the vehicle, and the vehicle controls the air supply rate of the three air inlets of the cylinder 180 through the position of the piston, thereby realizing the extension and retraction control of the pedal body 170 of the door clearance compensator. Specifically, the magnetic switch 210 includes a magnetic body (e.g., a magnet) and moving contacts acting with the magnetic body, the magnetic body of the magnetic switch 210 is disposed on a piston inside a cylinder, a pair of moving contacts of the magnetic switch 210 is disposed outside the cylinder at an interval, a distance between the two moving contacts is equal to a preset telescopic stroke of the cylinder 180, one of the moving contacts is disposed at a position where the magnetic body is disposed when the piston does not extend, another moving contact is disposed at a position where the telescopic stroke is close to a front end of the cylinder at an interval, a position where the piston does not extend is triggered by the magnetic body to generate a signal and send the signal to a vehicle body control system, the moving contact is triggered to generate a signal and send the signal to the vehicle body control system when the piston extends to the magnetic body and the.

In addition, when a certain vertical load is exceeded above the pedal body 170, the piston is controlled by the control system to stop working, so that the safety of personnel above the pedal body 170 is ensured.

The working principle of the door clearance compensator is that when the piston of the cylinder 180 extends out, the pushing pedal body 170 extends out to make up the clearance between the vehicle and the platform 320, and after the piston is in place, the piston is locked at the extending position; when the piston of the cylinder 180 retracts, the pedal body 170 is pulled back and hidden under the floor body 160, and is consistent with the outer contour of the vehicle body and cannot invade the limit. After the pedal body 170 extends out and retracts in place, the piston of the cylinder 180 is in a locking position after the air pressure is closed by the locking air inlet 183, and the piston cannot stretch out and retract, so that the safety is ensured. The door clearance compensator of the embodiment is embedded at the installation gap as an independent whole, so that the occupied space size is small, the installation is convenient, the reliability is high, the height of the upper surface of the floor body 160 after installation is the same as that of the floor in a passenger room, the matching degree with the whole body of a vehicle is high, steps at a doorway are reduced, and the trafficability of equipment such as passengers or wheelchairs is improved; and facilitates individual control of the door lash compensator.

In the embodiment of the invention, as shown in fig. 5 to 6, the vehicle body comprises two motor cars, namely MC1 and MC2, the head end of each motor car is provided with a cab, and the front end of the cab is provided with a full-automatic coupler, so that the vehicle body can be conveniently connected with other motor cars.

An internal combustion power pack and a diesel engine connected with the internal combustion power pack through an oil way are hung on the underframe 300 of each motor vehicle, and the hanging of the internal combustion power pack and the diesel engine needs to avoid the hanging device 30. The diesel engine is used for providing fuel for the internal combustion power pack, the internal combustion power pack is connected with the gear box of the bogie, and the gear box is driven to operate, so that power is provided for the operation of a vehicle. The selection of a diesel engine is only a preferred embodiment, and other oil supply equipment can be selected.

The roof 290 of each motor car is provided with a pantograph; the power supply circuit is convenient to use the circuit for supplying power, and the fuel consumption of the internal combustion power pack is saved.

One or two trailers Ri are connected between the two motor vehicles MC1 and MC2, in other words, only one trailer Ri can be connected between the two motor vehicles MC1 and MC2 to form a movable + towing + movable connection mode, or two trailers Ri can be connected between the two motor vehicles MC1 and MC2 to form a movable + towing + movable connection mode, and the motor vehicles and the trailers Ri or the trailers Ri and the trailers Ri are connected through semi-permanent towing rods.

The trailer Ri may be eliminated between the two motor vehicles MC1, MC2, that is, the two motor vehicles MC1, MC2 are directly connected, and the two motor vehicles MC1, MC2 are connected by a semi-permanent drawbar. Therefore, the internal combustion power pack, the diesel engine and the like are hung under the motor vehicle, so that the trailers Ri can be flexibly increased and decreased, and the flexible marshalling of the vehicles is realized.

The whole car body is made of aluminum alloy, so that the strength is high, and the light weight is realized.

In order to facilitate the installation of the internal combustion power pack and the diesel engine, the internal combustion power pack and the diesel engine are respectively hung on the underframe 300 of the motor car through a mounting frame, and in order to reduce the vibration impact during the running of the vehicle, the mounting frame is installed on the underframe 300 of the motor car through a damper.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims

1. The utility model provides a rail vehicle, includes the automobile body, the automobile body includes the chassis, is located the side wall of chassis both sides and be located both sides the side wall top and with both sides the roof that the side wall is connected respectively, its characterized in that, the chassis includes: the pair of side beams are positioned on two transverse sides of the underframe and extend longitudinally along the underframe, each side beam comprises an inner side beam and an outer side beam which are arranged oppositely, each inner side beam is provided with an equipment installation seat, each equipment installation seat comprises a horizontal transverse rib which horizontally extends inwards along the inner side of the inner side beam and a supporting inclined rib which is positioned below the horizontal transverse rib and one end of each horizontal transverse rib is connected with the bottom of the inner side beam, the other end of each horizontal transverse rib is connected with the extending end of the horizontal transverse rib, the pair of side beams are provided with notches for disconnecting the equipment installation seats at intervals in a one-to-one correspondence manner along the length direction, each section of horizontal transverse rib is provided with a first open slot which is arranged along the length direction, and each supporting inclined rib is provided with a second open slot which is in one-to-one correspondence with;

2. The rail vehicle according to claim 1, further comprising a suspension device, a suspension beam, and a cushion block, wherein the suspension device is fixed below the suspension beam, two ends of the suspension beam extend out from two lateral sides of the suspension device, the cushion block is arranged on the horizontal transverse rib, two ends of the suspension beam enter the upper part of the horizontal transverse rib from the notch and are erected on the cushion block, the cushion block is provided with a threaded hole, and the suspension beam is connected with the horizontal transverse rib in a fastening manner by a threaded fastener, and penetrates through the first open slot and the second open slot;

3. The rail vehicle of claim 2, further comprising a floor assembly positioned above the suspension device and connected to each of the pair of side beams, the floor assembly having a cable groove set and at least one pair of brake line sets disposed within an interlayer between the floor assembly and the suspension device; the wire groove groups are distributed on a central axis in the length direction of the vehicle body, and each pair of brake pipeline groups are respectively and symmetrically distributed on two sides of the central axis;

4. The rail vehicle according to claim 1, wherein a crane mounting cross bar, a clearance compensator mounting cross bar and a sleeper beam mounting cross bar are connected between the outer side beams and the inner side beams, respectively, and the crane mounting cross bar, the clearance compensator mounting cross bar and the sleeper beam mounting cross bar are arranged at intervals from top to bottom;

5. The rail vehicle according to claim 4, wherein the side beam is further provided with a seat mounting portion at a position above the crane mounting cross bar, the seat mounting portion including a seat mounting chute and a plurality of connecting bars which are diverged to the periphery with the bottom of the seat mounting chute as a connecting point;

6. The rail vehicle according to claim 3, further comprising a door clearance compensator, wherein an installation gap for installing the door clearance compensator is reserved in the floor assembly at the vehicle body door area;

7. The rail vehicle of claim 6, wherein a sliding rail and a sliding block are slidably connected between the pedal body and the floor body;

the sliding rail is fixed on the bottom surface of the floor body;

8. The rail vehicle according to claim 7, wherein the slide rail is fixedly connected to the bottom surface of the floor body by a fastening bolt, and the slider is fixedly connected to the upper surface of the step body by a fastening bolt;

9. The rail vehicle according to claim 7, wherein the driving mechanism is a cylinder, the cylinder includes a cylinder body and a piston extending and retracting along the cylinder body, a fixed end of the cylinder body is rotatably connected to a bottom surface of a rear end of the floor body through a first pin shaft, an extending end of the piston is rotatably connected to a bottom surface of a front end of the pedal body through a second pin shaft, the first pin shaft and the second pin shaft are arranged in parallel, and an axial direction of the first pin shaft and an axial direction of the second pin shaft are perpendicular to an extending and retracting direction of the piston; the cylinder body is provided with a stretching air inlet, a retracting air inlet and a locking air inlet, and the stretching air inlet, the retracting air inlet and the locking air inlet are respectively used for being connected to a vehicle body air supply unit through air channels; at least one of the extension air inlet, the retraction air inlet and the lock-up air inlet is provided with a throttle valve.

10. The railway vehicle as claimed in claim 9, wherein the cylinder is provided with a magnetic switch, a magnetic body of the magnetic switch is disposed on the piston in the cylinder, a pair of moving contacts of the magnetic switch is spaced outside the cylinder, a distance between the two moving contacts is equal to a preset telescopic stroke of the cylinder, and one of the moving contacts is disposed corresponding to a position where the piston is not extended and the magnetic body is disposed.

11. The rail vehicle according to any one of claims 1 to 10, wherein the vehicle body comprises two railcars, each railcar is provided with a cab at the head end, and the front end of the cab is provided with a fully automatic coupler;

the top of each bullet train is provided with a pantograph;

12. The rail vehicle of claim 11, wherein the car body is made of an aluminum alloy;