CN116923469A - Rail train and underframe wiring method - Google Patents

Abstract

The invention discloses a rail train and an underframe wiring method. The rail train comprises a train body upper structure and a train body lower structure; the lower structure of the vehicle body comprises a bogie, an underframe bearing structure, a sleeper beam assembly, a traction seat and an under-vehicle wire pipe; the sleeper beam assembly and the traction seat are positioned below the underframe bearing structure, and the traction seat is positioned at the end side of the sleeper beam assembly; the bogie is fixed at the lower part of the sleeper beam, and the outline of the bogie extends to the lower part of the traction seat; the under-vehicle line pipe is positioned at the lower part of the underframe bearing structure and penetrates through the sleeper beam assembly and the traction seat; the bogie and the under-car line pipe are fixedly arranged on the sleeper beam component and the underframe bearing structure; the under-car line pipes are mutually communicated with a plurality of line passing pipes of the traction seat and are formed by sleeper beams at two ends of the lower structure of the car body. The invention solves the problem that the underframe can not be used for arranging cables and pipelines required by the train.

Description

Rail train and underframe wiring method

Technical Field

The invention relates to a rail train and an underframe wiring method, and belongs to the technical field of rail vehicles.

Background

At present, the steel wheel rail traffic system achieves the main stream position in the field of rail locomotives and vehicles based on the characteristics of high speed, large axle weight, large running energy and the like, and the rail traffic occupies absolute market share in the field of large-traffic metro vehicles. However, the problems of large noise, low climbing capacity, large curve passing radius and the like of the rail traffic system are all to be solved, and the defects can be well overcome by adopting the wheel-rubber-wheel co-driving bogie.

The CN109131413a patent provides a steel wheel and rubber wheel co-driving bogie and a traffic system thereof, which couple the rubber wheels and the steel wheels together and can selectively use a steel wheel rail system or a rubber wheel flat rail system according to the traffic density, road conditions and running performance requirements. But the connection between the bogie and the car body of the patent scheme adopts the connection mode of a traction seat and an air spring of the traditional subway car, so that the capacity of the train passing through a small radius curve is limited.

EP1557337A1 discloses an underframe, the automobile body is at the regional direct floor excavation of wheel pair to transversely arrange the section bar, directly process out and lead the slow structure, with current motorcycle type structural difference big, make the frock need adjust by a wide margin.

The bogie and the train body are connected by adopting a rotary supporting structure, so that the small radius curve passing energy of the train is enhanced, the train can run in cities with more severe running conditions, and the adaptability and the universality of the train are greatly improved.

But steel wheel rubber wheel co-driving type bogie adopting rotary supporting structure connection is provided with rubber wheels and steel wheels side by side in the transverse direction, and guide wheels are also arranged at the ends of the longitudinal direction, so that the size of the bogie is larger than that of the conventional subway bogie, and the layout space of cables and pipelines in a sleeper beam area and an end beam area is narrow. The middle part of the sleeper beam needs to be suitable for the installation of a rotary supporting structure, for example, a cable is arranged outside the traction beam in a traditional mode that the cable passes through the sleeper beam from two sides of a center pin provided by CN113451951A and CN207875631U, so that the cable, a pipeline and a bogie interfere, and the sleeper beam is not suitable for the vehicle type. While CN103935372a provides a solution in which wires are routed from inside the cavity of the floor, but the height of the sleeper beam needs to be reduced, and the floor is continuously arranged from above the sleeper beam, so that the strength performance of the vehicle body structure is not good, and the cable is inconvenient for visual inspection and later maintenance in the cavity.

Disclosure of Invention

The invention aims to provide a rail train and an underframe wiring method, which can at least solve one of the following problems:

1) The large-traffic subway vehicles have insufficient small radius capability;

2) The steel wheel and rubber wheel co-driving bogie has more wheel pairs and large occupied space, and the existing subway train underframe cannot normally arrange cables and pipelines;

3) The cables are arranged in the floor cavity, visual inspection is difficult, and later maintenance is inconvenient;

4) The guide wheel covers the lower area of the vehicle body end part, and great inconvenience is brought to workshop jumper wires at the vehicle end part.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

a rail train is characterized in that: comprises a vehicle body upper structure and a vehicle body lower structure;

the lower structure of the vehicle body comprises a bogie, an underframe bearing structure, a sleeper beam assembly, a traction seat and an under-vehicle wire pipe; the sleeper beam assembly and the traction seat are positioned below the underframe bearing structure, and the traction seat is positioned at the end side of the sleeper beam assembly; the bogie is fixed at the lower part of the sleeper beam, and the outline of the bogie extends to the lower part of the traction seat; the under-vehicle line pipe is positioned at the lower part of the underframe bearing structure and penetrates through the sleeper beam assembly and the traction seat;

the bogie and the under-car line pipe are fixedly arranged on the sleeper beam component and the underframe bearing structure; the under-car line pipes are mutually communicated with a plurality of line passing pipes of the traction seat, wherein the line passing pipes are formed by sleeper beams at two ends of the lower structure of the car body;

the underframe bearing structure comprises an underframe boundary beam, a sleeper rear reinforcing rib, a sleeper side floor, an inner sleeper floor, a long floor and an end side floor; the chassis side beams are positioned at two sides of the longitudinal direction of the chassis bearing structure; the back rest reinforcing ribs are positioned at the middle parts of the two ends of the long floor, and the back rest reinforcing ribs are connected with the long floor and the sleeper beam; the traction seat comprises an end floor, a traction Liang Deban, a cover plate, wing plates, a front support, a junction box framework, an end beam, a vertical plate and a hook plate; the branch box framework, the end beams, the wing plates, the upper end floors, the front supports and the underframe side beams on two sides form a closed cavity together.

According to the embodiment of the invention, the invention can be further optimized, and the following technical scheme is formed after the optimization:

in one of the preferred embodiments, the bogie comprises wheel sets, guide wheels, slewing bearings and a frame; the wheel set is a steel wheel and rubber wheel integrated wheel set, and is positioned below the edge beam of the underframe; the length of the framework extends to the outer side of the wheel set, guide wheels are arranged at four corners of the framework, and the guide wheels at the end parts are positioned below the traction seat; the rotary support is positioned above the middle part of the framework and is used for being fixedly connected with the sleeper beam.

In one preferred embodiment, the branch box framework is integrally connected with the end floor, the wing plates and the front support; the front inclined plane of the branch box framework and the lower surface of the front support are integrally designed; the rear inclined plane of the branch box framework is connected with the wing plate.

In one preferred embodiment, the fifth wheel and bolster assemblies are arranged in sequence from the head to the center of the vehicle.

In one preferred embodiment, the underframe bearing structure, the sleeper beam assembly and the traction seat are all welded structures, wherein the sleeper beam assembly is connected with the underframe side beam to form a 'mesh' -shaped structure.

In one preferred embodiment, the pillow side floor, the pillow inner floor, the long floor, the end side floor, the end floor in the traction seat and the traction Liang Deban all adopt a double-layer closed cavity structure; preferably, the pillow side floor, the pillow inner floor, the long floor and the end side floor are uniform in height.

In one preferred embodiment, the sleeper beam is mainly composed of two sleeper beam cross beams with longer length and two sleeper beam longitudinal beams with shorter length, the sleeper beam cross beams and the sleeper beam longitudinal beams are vertically arranged, two circles of adjacent concentric annular grooves are processed in the middle of a cross beam lower rib plate of the sleeper beam cross beams and in the lower rib plate of the sleeper beam longitudinal beams for connecting rotary support of the bogie.

In one preferred embodiment, the sleeper beam is of a multi-cavity section structure, the lower surface of the sleeper beam is provided with a beam lower rib plate, the inside of the sleeper beam is provided with an inclined rib plate, and two sides of the sleeper beam are provided with vertical rib plates in the vertical direction; the sleeper beam is internally provided with a lateral wire passing pipe and a central wire passing pipe; more preferably, the side line passing pipes are positioned at two sides of the sleeper beam cross beam, and one end of each side line passing pipe is lapped on the inclined rib plate; the two ends of the central line pipe are lapped on the vertical rib plate.

In one preferred embodiment, side through-tubes are arranged on two sides of the sleeper beam, central through-tubes are respectively arranged in front of and behind the middle position, the front central through-tubes are respectively positioned on two sides of a middle plate of the traction seat, and the rear central through-tubes are respectively positioned on two sides of a reinforcing rib behind the sleeper; preferably, the side wire passing pipes and the center wire passing pipe are longitudinally arranged.

In one preferred embodiment, the sleeper beam longitudinal beam is of a multi-cavity section structure, a longitudinal beam lower rib plate is arranged on the lower surface of the sleeper beam longitudinal beam, a longitudinal beam middle wing plate is arranged on the outer side of the middle part of the sleeper beam longitudinal beam, and a longitudinal beam upper joint is arranged on the upper surface of the sleeper beam longitudinal beam; the upper joints of the longitudinal beams and the middle wing plates of the longitudinal beams are symmetrically arranged and are respectively used for connecting the upper joint and the lower joint of the sleeper side floor and the sleeper inner floor and are welded into a whole; preferably, the end heads of the sleeper side floor and the sleeper inner floor are designed into inclined joints and inclined joints of a closed cavity structure, and the sleeper side floor and the sleeper inner floor fall to the two sides of the sleeper beam longitudinal beam from the up-down direction; preferably, a longitudinal beam process hole is formed in the middle of the longitudinal beam of the sleeper beam and is used for installing a longitudinal beam wire passing pipe, so that the wire passing pipe under the vehicle can extend to two sides of the sleeper beam.

In one preferred embodiment, the traction beam floor is positioned between the left and right upright plates, and the cover plate covers the lower parts of the upright plates; the traction Liang Deban, the vertical plate and the cover plate are connected with the coupler plate; wing plates are arranged on two sides of the hook plate, and a front support, a branch box framework and an end beam are arranged on the front side of the hook plate; preferably, the branch box framework is connected with the front support, the end floor, the end beam and the wing plate into an integral structure.

In one preferred embodiment, the front support, the wing plate, the end floor and the vertical plate are respectively provided with a first wire passing hole, a second wire passing hole, a third wire passing hole and a fourth wire passing hole which are used for installing the under-vehicle wire pipe so that the under-vehicle wire pipes among different parts of the under-vehicle body structure are mutually communicated.

In one preferred embodiment, the first wire passing hole, the second wire passing hole, the third wire passing hole and the fourth wire passing hole are formed in the sleeper beam assembly and the traction seat structure, and the longitudinal beam process holes enable the wire pipe under the vehicle to be closely attached to the sleeper side floor, the sleeper inner floor, the long floor, the end side floor, the end floor and the traction beam floor.

Based on the same inventive concept, the invention also provides a chassis wiring method of the rail train, wherein the under-train line pipe comprises a straddle-type cable, an inter-box cable, a train end cable, a sleeper beam cable, a brake pipeline and a box cable; the straddle carrier cable is positioned at the extreme end of the lower part structure of the vehicle body; the specific wiring method comprises the following steps:

the straddle carrier cables are led out from the front inclined plane of the junction box framework, are longitudinally arranged, extend into the junction box framework on the other section of the car body at the front end and the rear end and are mutually connected;

the cables between the boxes are positioned between the branch box frameworks at the left side and the right side, and the cables are led out from the front support positioned at the side surface of the branch box frameworks; meanwhile, part of the inter-box cables are connected with the box cables in the upper structure of the vehicle body through the end floors;

the vehicle-end cables are distributed between the branch box framework and the sleeper beam, and the cables are led out from the rear inclined surface of the branch box framework and the back wing plate; a part of vehicle-end cables penetrate through the vertical plates and enter between the two vertical plates of the traction seat, and then penetrate through the central line pipe and enter the sleeper beam to form an inside; the other part of the vehicle end cable and the brake pipeline directly pass through the central wire passing pipe and the side wire passing pipe respectively from the end-side floor area outside the vertical plate and enter the sleeper beam to form the inside;

after the car end cable and the brake pipeline enter the sleeper beam to form the interior, a part of the car end cable transversely passes through the longitudinal beam process hole and is connected with the sleeper beam cable for the bogie; the sleeper beam cables are arranged on two sides of the lower structure of the vehicle body; the other part of the vehicle end cable passes through the central wire passing pipe, enters the middle part of the lower structure of the vehicle body and is communicated with other equipment under the vehicle.

The rail train consists of a plurality of carriages, steel wheel and rubber wheel co-drive bogies are arranged at two ends of a chassis of each carriage body, and cable connection between the carriages is realized through workshop jumper wires.

The car body is suitable for installing a dual-purpose two-axle bogie for both roads and railways, and the sleeper beam of the car body underframe is connected with the side beam to form a 'mesh' -shaped structure. Two ends of each section of rubber wheel rail train body are provided with a highway and railway dual-purpose two-axle bogie, and the bogie is connected with the train body through a rotary supporting structure with balls. The sleeper beam of the underframe of the car body is of a frame type structure in a shape of a Chinese character 'mu', and two circular grooves are arranged below the middle opening type structure and are used for installing the rotary support body.

And a plurality of wire passing holes are formed in the sleeper beam and the traction beam vertical plate, the underframe pipelines are routed from the center of the sleeper beam to the front and back, left and right, and the traction beam region is routed from the middle of the traction beam vertical plate.

The longitudinal beam and the cross beam of the sleeper beam are respectively provided with a plurality of layers of cavities, the sleeper beam can be connected with floors with double-layer structures around, and cables and pipelines pass through the cavities of the longitudinal beam and the cross beam of the sleeper beam; the two ends of the cross beam are provided with notches, and screw plates for fixing the bogie can be plugged in.

The junction box, the end beam and the floor are integrated into a whole, so that the movement space of the steering wheel of the bogie is avoided, and the wiring space of the vehicle end is provided.

7 floors in the sleeper beam and in the front and the back adopt double-layer structures, so that the work noise of the bogie is effectively isolated and transmitted into the vehicle.

The underframe sleeper beam adopts a frame type structure, two sides of the underframe sleeper beam are connected with the side beams of the underframe to form a 'mesh' -shaped structure, and the two-axis bogie frame is connected with the 'mesh' -shaped two-axis bogie frame through the circular rotary support body, so that the problems of too small radius and large gradient climbing of a large-traffic rubber-tyred subway system are solved, and the strength problem of a vehicle body is also solved. Through optimizing the sleeper beam structure, the connection mode of the vehicle body and the bogie is innovated, the problem that the motion space of the wheel set in the sleeper beam area interferes with the existing sleeper beam structure is solved, and the carbon steel disc is replaced by adopting the aluminum alloy profile grooving structure, so that the weight can be effectively reduced.

Compared with the prior art, the invention has the beneficial effects that:

1) The train has the performances of large traffic and too small radius curve, is suitable for worse operation line conditions, and greatly improves the universality;

2) By optimizing the underframe structure, the underframe space is fully utilized, and the problem that cables and pipelines required by a train cannot be arranged on the underframe is solved;

3) The cable is prevented from being arranged in the floor cavity, visual inspection is convenient, and the later maintenance cost is lower;

4) The underframe floor adopts a segmented structure, which is favorable for keeping the integrity and continuity of the traction and sleeper buffer structure and has good vehicle body strength performance.

Drawings

FIG. 1 is a schematic diagram of the train of the present invention;

FIG. 2 is a view showing the assembly and welding of the lower structure of the vehicle body according to the present invention;

FIG. 3 is an exploded view of the chassis structure of the present invention;

FIG. 4 is a schematic view of a sleeper beam structure according to the present invention;

FIG. 5 is a view A-A of FIG. 2;

FIG. 6 is a view B-B of FIG. 2;

FIG. 7 is a D-D view of FIG. 4;

FIG. 8 is an E-E view of FIG. 4;

FIG. 9 is an enlarged view of I of FIG. 6;

FIG. 10 is a schematic view of a fifth wheel configuration according to the present invention;

FIG. 11 is a partial schematic view of a chassis according to the present invention;

FIG. 12 is a schematic view of the end routing of the chassis of the present invention;

FIG. 13 is a schematic view of the end of train of the present invention;

fig. 14 is a C-C view of fig. 2.

In the drawings

The vehicle body upper structure 100, the vehicle body lower structure 200, the bogie 1, the underframe load-carrying structure 2, the wheel set 11, the guide wheel 12, the slewing bearing 13, the frame 14, the underframe side sill 21, the rear sleeper stiffener 22, the sleeper side floor 23, the diagonal joint 231, the inner sleeper floor 24, the diagonal joint 241, the long sleeper 25, the end side floor 26, the sleeper beam component 3, the sleeper beam 31, the annular groove 31a, the sleeper beam 311, the crossbeam lower gusset 3111, the diagonal rib plate 3112, the vertical gusset 3113, the sleeper beam longitudinal beam 312, the longitudinal beam process hole 312a, the longitudinal beam lower gusset 3121, the longitudinal beam middle wing plate 3122, the longitudinal beam upper joint 3123, the side wire tube 32, the center wire tube 33, 33', the longitudinal beam wire tube 34, the traction seat 4, the end floor 41, the traction Liang Deban, the cover plate 43, the front strut 45, the junction box skeleton 46, the front inclined plane 46a, the rear inclined plane 46b, the end beam 47, the vertical plate 48, the sleeper plate 49, the wire passing hole one 4a, the wire passing hole two 4b, the wire passing hole three 4c, the wire passing hole four wire passing holes 4d, the lower wire cable 5, the cable box cable 5, the cross-tie box cable 5, the cross-wire box cable 52, the brake cable wire box 53, the cross-shaped cable 52, the brake cable wire box 53, the inter-box cable wire and the brake cable wire 53.

Detailed Description

The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.

The rail train of the present embodiment is mainly composed of a vehicle body upper structure 100, a vehicle body lower structure 200, and the vehicle body upper structure 100 is located above the vehicle body lower structure 200. The underbody structure 200 includes components such as a bogie 1, an underframe load-bearing structure 2, a bolster assembly 3, a fifth wheel 4, and an underbody wire 5. The sleeper beam assembly 3 and the traction seat 4 are positioned below the underframe bearing structure 2, and the traction seat 4 is positioned at the end side of the sleeper beam assembly 3. The bogie 1 is fixed to the lower part of the sleeper beam assembly 3 and its profile extends below the fifth wheel 4. The under-vehicle line pipe 5 is located at the lower part of the underframe bearing structure 2 and penetrates through the sleeper beam assembly 3 and the traction seat 4.

Fig. 2 is a vehicle body lower structure assembly welding diagram, and fig. 3 is an underframe structure explosion diagram. The underbody structure 200 comprises an underframe bearing structure 2, two sleeper beam assemblies 3 positioned at two ends of the underframe bearing structure 2, two traction seats 4, two bogies 1 and an underbody wire pipe 5. The traction seat 4 and the sleeper beam component 3 are sequentially arranged from the end head to the center of the vehicle. The underframe bearing structure 2 is composed of underframe side beams 21, a back-rest reinforcing rib 22, a side-rest floor 23, an inner-rest floor 24, a long floor 25 and an end-side floor 26. The chassis side beams 21 are positioned at two sides of the longitudinal direction of the chassis bearing structure 2; the reinforcing ribs 22 behind the sleeper are positioned at the middle parts of the two ends of the long floor 25 and are used for connecting the long floor 25 and the sleeper beam component 3, so that the problem of insufficient weld strength between the long floor 25 and the sleeper beam component 3 caused by local rigidity abrupt change is solved. The underframe bearing structure 2, the sleeper beam component 3 and the traction seat 4 are all welded structures, wherein the sleeper beam component 3 is connected with the underframe side beam 21 to form a 'mesh' -shaped structure; the bogie 1 and the under-vehicle line pipe 5 are fixedly arranged on the sleeper beam assembly 3 and the underframe bearing structure 2 through fasteners such as bolts.

The sleeper side floor 23, the sleeper inner floor 24, the long floor 25 and the end side floor 26 are formed, wherein the sleeper side floor 23, the sleeper inner floor 24, the long floor 25, the end side floor 26 and the end floor 41 and the traction Liang Deban in the traction seat 4 are of double-layer closed cavity structures, the sound insulation effect of a bogie area is improved, noise in the bogie working process is prevented from being transmitted to passengers in a passenger room, and the comfort in a vehicle is improved.

The heights of the pillow side floor 23, the pillow inner floor 24, the long floor 25 and the end side floor 26 are consistent, so that the universality of section sections is improved, and the cost is effectively reduced; the heights of the end floor 41 and the traction Liang Deban 42 are adjusted in the up-down direction according to the cable amount of the under-vehicle cable 5, and the implementation of the wiring function is preferably ensured.

Fig. 4 is a schematic view of the sleeper beam structure, fig. 5 is A-A view of fig. 2, and fig. 6 is a-B view of fig. 2. Fig. 7 is a D-D view of fig. 4, fig. 8 is an E-E view of fig. 4, and fig. 9 is an enlarged view of fig. 6. The bolster 31 is composed of two bolster beams 311 with longer length and two bolster stringers 312 with shorter length, the bolster beams 311 are vertically arranged with the bolster stringers 312, and two circles of adjacent concentric annular grooves 31a are processed on the middle part of a beam lower rib plate 3111 of the bolster beams 311 and the stringer lower rib plate 3121 of the bolster stringers 312 for connecting the rotary support 13 of the bogie 1.

The sleeper beam 311 is of a multi-cavity section structure, a beam lower rib plate 3111 is arranged on the lower surface of the sleeper beam, inclined rib plates 3112 are arranged in the sleeper beam, and vertical rib plates 3113 are arranged in the vertical directions of the two sides of the sleeper beam. Side wire pipes 32, central wire pipes 33, 33' are embedded inside the bolster assembly 3 for the passage of electrical cables and brake lines. The cross beam lower rib plate 3111, the inclined rib plate 3112 and other rib plates are machined and milled at the two ends of the cross beam 311 of the sleeper beam, so that the inclined rib plate 3112 is exposed outside. The side wire passing pipes 32 are positioned on two sides of the sleeper beam cross beam 311, and one end of each side wire passing pipe 32 is lapped on the inclined rib plate 3112, so that the off-vehicle wire passing pipe 5 at the position can be ensured to avoid the sweeping space of the wheel set 11 of the bogie 1. The two ends of the central line pipes 33 and 33' are lapped on the vertical rib plates 3113, and the lower rib plates 3111 and the inclined rib plates 3112 of the cross beams are reserved, so that the local strength of the middle part is ensured, and the connection reliability with the bogie 1 is ensured.

The sleeper beam longitudinal beam 312 is of a multi-cavity profile structure, a longitudinal beam lower rib plate 3121 is arranged on the lower surface, a longitudinal beam middle wing plate 3122 is arranged on the outer side of the middle part, and a longitudinal beam upper joint 3123 is arranged on the upper surface. The upper rail joint 3123 and the middle rail plate 3122 located at both wings of the sleeper beam rail 312 are arranged in a pair for connecting upper and lower joints of the sleeper side floor 23 and the sleeper inner floor 24, respectively, and are welded as one body. The symmetrical arrangement of the welding seams is beneficial to improving the planeness of the occipital side floor 23 and the occipital inner floor 24. The end of the sleeper side floor 23 and the sleeper inner floor 24 are designed into the inclined joint 231 and the inclined joint 241 with closed cavity structures, so that the sleeper side floor 23 and the sleeper inner floor 24 can fall to the two sides of the sleeper beam longitudinal beam 312 from the up-down direction, good process operability is achieved, and sufficient local strength is achieved.

A girder process hole 312a is provided in the middle of the girder 312 for installing the girder line pipe 34 so that the under-vehicle line pipe 5 can extend to both sides of the girder 31.

Fig. 10 is a schematic drawing of the fifth wheel construction. The traction seat 4 mainly comprises an end floor 41, traction Liang Deban, a cover plate 43, a wing plate 44, a front support 45, a branch box framework 46, a front inclined plane 46a, a rear inclined plane 46b, an end beam 47, a vertical plate 48 and a coupler plate 49. The traction Liang Deban 42 is located in the middle of the left and right standing plates 48, and the cover plate 43 covers the lower side of the standing plates 48. Traction Liang Deban, riser 48, cover plate 43 are connected to coupler plate 49 to provide longitudinal support and moment to coupler plate 49. The two sides of the coupler plate 49 are provided with a wing plate 44, and the front side is provided with a front support 45, a junction box skeleton 46 and an end beam 47.

The wire-distributing box framework 46, the front support 45, the end floor 41, the end beam 47 and the wing plates 44 are connected into a whole structure, so that the space of the hollow section structure of the end floor 41 can be utilized by the under-vehicle wire pipe 5, the capacity of the wire-distributing box is enlarged, and the problem of tension of wiring space at the vehicle end is solved; meanwhile, the bearing has good bearing strength performance, and longitudinal and transverse loads are effectively transferred.

The first wire passing hole 4a, the second wire passing hole 4b, the third wire passing hole 4c and the fourth wire passing hole 4d are respectively processed on the front support 45, the wing plates 44, the end floor 41 and the vertical plate 48 and are used for installing the under-vehicle wire pipe 5, so that the under-vehicle wire pipes 5 among different parts of the under-vehicle structure 200 are mutually communicated, and the under-vehicle bogie 1 and other devices can be ensured to be normally used.

Fig. 11 is a partial schematic view of a chassis. Side line pipes 32 are arranged on two sides of the sleeper beam assembly 3, and center line pipes 33' are respectively arranged in front of and behind the middle position. The side wire pipes 32, the central wire pipe 33, and the central wire pipe 33' are all longitudinally arranged. Wherein the front central line pipes 33 are respectively positioned at two sides of the vertical plate 48 in the traction seat 4, and the rear central line pipes 33' are respectively positioned at two sides of the back-rest reinforcing ribs 22. The central conduit 33 and the central conduit 33' can be flexibly arranged to have different numbers, different positions and different sizes of apertures according to the distribution of the vertical plate 48 and the back-rest reinforcing ribs 22.

Fig. 12 is a chassis end routing schematic. The under-vehicle line pipe 5 is connected to the under-vehicle structure 200 at both ends thereof via a plurality of line pipes of the sleeper beam assembly 3 and the fifth wheel 4. The method comprises the following steps:

the under-vehicle spool 5 includes a straddle-type cable 51, an inter-tank cable 52, a vehicle-end cable 53, a bolster cable 54, a brake pipe 55, and a tank cable 56. Wherein the straddle carrier cable 51 is located at the extreme end of the lower body structure 200, is led out from the front inclined surface 46a of the junction box skeleton 46, is arranged in the longitudinal direction, extends into the junction box skeleton 46 on the other of the front and rear ends of the vehicle body, and is connected with each other.

The inter-box cable 52 is positioned between the branch box frameworks 46 at the left side and the right side, and is led out from the first wire through hole 4a in the front support 45 positioned at the side surface of the branch box frameworks 46, so that the cable connection between the branch box frameworks 46 is realized; meanwhile, part of the cables are connected with the cabinet cable 56 in the vehicle body upper structure 100 through the four 4d wire passing holes on the end floor 41, so that the communication of the cables on the vehicle and the off-vehicle is realized.

The vehicle-end cables 53 are distributed between the box frame 46 and the sleeper beam assembly 3, and the cables are led out from the rear inclined surface 46b of the box frame 46 and the second wire passing holes 4b in the rear side wing plates 44. A portion of the car end cable 53 passes through the wire passing hole three 4c in the riser 48, enters between the two risers 48 of the fifth wheel 4, and passes through the center wire passing tube 33 into the interior of the sleeper beam assembly 3. The other part of the vehicle end cable 53 and the brake pipe 55 pass through the center line pipe 33 and the side line pipe 32, respectively, directly from the end floor 26 area outside the riser 48 into the inside of the sleeper beam assembly 3.

After entering the inside of the bolster assembly 3, a part of the car-end cable 53 passes through the longitudinal beam process hole 312a transversely and is connected with the bolster cable 54 for the bogie 1. The bolster cables 54 are arranged on both sides of the vehicle body lower structure 200, which is advantageous in achieving a cable coupling operation with the bogie 1, and facilitating installation and maintenance. Another portion of the vehicle end cable 53 passes through the center line tube 33' into the middle of the vehicle body substructure 200 and communicates with other equipment in the vehicle.

Through the arrangement of the first wire passing hole 4a, the second wire passing hole 4b, the third wire passing hole 4c, the fourth wire passing hole 4d, the longitudinal beam process hole 312a and other channels in the structure of the sleeper beam assembly 3 and the traction seat 4, the fact that the wire pipes 5 under the vehicle can be tightly attached to the sleeper side floor 23, the sleeper inner floor 24, the long floor 25, the end side floor 26, the end floor 41 and the traction Liang Deban 42 is achieved, the interference problem with the bogie 1 is effectively avoided, and the problem of communication between cables and pipelines of all devices of the lower structure 200 of the vehicle body is solved.

Fig. 13 is an end of train schematic view and fig. 14 is a C-C view of fig. 2.

The bogie 1 comprises a wheel set 11, a guide wheel 12, a slewing bearing 13, a framework 14 and other structures, wherein the wheel set 11 is a steel wheel and rubber wheel integrated wheel set, occupies a wider space, and is positioned below an underframe boundary beam 21; the length of the framework 14 extends to the outer side of the wheel set 11, guide wheels 12 are arranged at four corners of the framework 14, and the guide wheels 12 at the end parts are positioned below the traction seat 4; the slewing bearing 13 is positioned above the middle part of the framework 14 and is used for being fixedly connected with the sleeper beam assembly 3.

In order to avoid the motion track of the guide wheel 12, and consider the extreme working conditions such as the breakage of the primary spring and the secondary spring of the bogie 1, the height of the traction seat 4 from the height setting underframe bearing structure 2 is smaller, and meanwhile, the junction box framework 46 is integrally connected with the end floor 41, the wing plates 44 and the front support 45. The front inclined surface 46a of the branch box framework 46 and the lower surface of the front support 45 are integrally designed to provide supporting force for the coupler plate 49; the rear inclined surface 46b of the junction box skeleton 46 is connected with the wing plate 44, and provides an inclined surface for leading out the vehicle-end cable 53, so that the sagging amplitude of the vehicle-end cable 53 when extending towards the longitudinal center direction of the vehicle body can be reduced, and the movement track of the guide wheel 12 can be effectively avoided.

The junction box skeleton 46 forms a closed cavity with the front-rear end beams 47, the wing plates 44, the upper end floors 41, the front braces 45 and the underframe side beams 21 on both sides, and a sufficient space is provided for accommodating the joint arrangement and the joint operation of the inter-vehicle cables 51, the inter-box cables 52 and the box cables 56.

The foregoing examples are set forth in order to provide a more thorough description of the present invention, and are not intended to limit the scope of the invention, since modifications of the present invention, in which equivalents thereof will occur to persons skilled in the art upon reading the present invention, are intended to fall within the scope of the invention as defined by the appended claims.

Claims (14)

1. A rail train comprising a body superstructure (100) and a body substructure (200); it is characterized in that the method comprises the steps of,

the vehicle body lower structure (200) comprises a bogie (1), an underframe bearing structure (2), a sleeper beam assembly (3), a traction seat (4) and an under-vehicle wire pipe (5); the sleeper beam assembly (3) and the traction seat (4) are positioned below the underframe bearing structure (2), and the traction seat (4) is positioned at the end side of the sleeper beam assembly (3); the bogie (1) is fixed at the lower part of the sleeper beam assembly (3), and the outline of the bogie extends to the lower part of the traction seat (4); the under-vehicle wire pipe (5) is positioned at the lower part of the underframe bearing structure (2) and penetrates through the sleeper beam assembly (3) and the traction seat (4);

the bogie (1) and the under-vehicle line pipe (5) are fixedly arranged on the sleeper beam assembly (3) and the underframe bearing structure (2); the under-vehicle line pipe (5) is communicated with a plurality of line pipes of the traction seat (4) through a sleeper beam assembly (3) at two ends of the lower structure (200) of the vehicle body;

the underframe bearing structure (2) comprises an underframe boundary beam (21), a rear sleeper reinforcing rib (22), a sleeper side floor (23), an inner sleeper floor (24), a long floor (25) and an end side floor (26); the chassis side beams (21) are positioned at two sides of the longitudinal direction of the chassis bearing structure (2); the back-rest reinforcing ribs (22) are positioned at the middle parts of the two ends of the long floor (25), and the back-rest reinforcing ribs (22) are connected with the long floor (25) and the sleeper beam (3);

the traction seat (4) comprises an end floor (41), traction Liang Deban (42), a cover plate (43), a wing plate (44), a front support (45), a branch box framework (46), an end beam (47), a vertical plate (48) and a coupler plate (49); the branch box framework (46) forms a closed cavity together with an end beam (47), a wing plate (44), an upper end floor (41), front supports (45) and underframe side beams (21) at two sides.

2. The rail train of claim 1, characterized in that the bogie (1) comprises a wheel set (11), a guide wheel (12), a slewing bearing (13) and a frame (14); the wheel set (11) is a steel wheel and rubber wheel integrated wheel set, and the wheel set (11) is positioned below the side beam (21) of the underframe; the length of the framework (14) extends to the outer side of the wheel set (11), guide wheels (12) are arranged at four corners of the framework (14), and the guide wheels (12) at the end parts are positioned below the traction seat (4); the rotary support (13) is positioned above the middle part of the framework (14) and is used for being connected and fixed with the sleeper beam assembly (3).

3. The rail train of claim 1, wherein the junction box skeleton (46) is integrally connected with the end floor (41), the wing plates (44) and the front support (45); the front inclined surface (46 a) of the branch box framework (46) and the lower surface of the front support (45) are integrally designed; a rear inclined surface (46 b) of the junction box framework (46) is connected with the wing plate (44).

4. The rail train of claim 1, characterized in that the fifth wheel (4) and the sleeper beam assembly (3) are arranged in sequence from the end head to the centre of the vehicle.

5. The rail train of claim 1, wherein the undercarriage bearing structure (2), the sleeper beam assembly (3) and the traction seat (4) are all welded structures, wherein the sleeper beam assembly (3) and the undercarriage side beam (21) are connected to form a 'mesh' -shaped structure.

6. The rail train of claim 1, wherein the sleeper side floor (23), the sleeper inner floor (24), the long floor (25), the end side floor (26) and the end floor (41) and the traction Liang Deban (42) in the traction seat (4) all adopt double-layer closed cavity structures; preferably, the pillow side floor (23), the pillow inner floor (24), the long floor (25) and the end side floor (26) are uniform in height.

7. Rail train according to claim 1, characterized in that the sleeper beam (31) mainly consists of two sleeper beams (311) with a longer length and two sleeper beams (312) with a shorter length, the sleeper beams (311) are arranged perpendicular to the sleeper beams (312), two adjacent and concentric annular grooves (31 a) are machined in the middle of a beam lower rib plate (3111) of the sleeper beams (311) and in the beam lower rib plate (3121) of the sleeper beams (312) for connecting the slewing bearing (13) of the bogie (1).

8. The rail train according to claim 1, wherein the sleeper beam cross beam (311) is of a multi-cavity section structure, a cross beam lower rib plate (3111) is arranged on the lower surface, inclined rib plates (3112) are arranged in the lower surface, and vertical rib plates (3113) are arranged on two sides in the vertical direction; the side line pipes (32) and the center line pipes (33, 33') are arranged in the sleeper beam assembly (3); more preferably, the side wire passing pipes (32) are positioned on two sides of the sleeper beam cross beam (311), and one end of each side wire passing pipe (32) is lapped on the inclined rib plate (3112); both ends of the central line pipe (33, 33') are overlapped with the vertical rib plates (3113).

9. The rail train of claim 8, characterized in that side through-pipes (32) are provided on both sides of the sleeper beam assembly (3), central through-pipes (33, 33 ') are provided in front of and behind the center position, the front central through-pipes (33) are located on both sides of a neutral plate (48) of the traction seat (4), and the rear central through-pipes (33') are located on both sides of the rear reinforcing ribs (22); preferably, the side wire pipes (32) and the center wire pipes (33, 33') are all longitudinally arranged.

10. The rail train of claim 1, wherein the sleeper beam longitudinal beam (312) is of a multi-cavity profile structure, a longitudinal beam lower rib plate (3121) is arranged on the lower surface, a longitudinal beam middle wing plate (3122) is arranged on the outer side of the middle part, and a longitudinal beam upper joint (3123) is arranged on the upper surface; the upper joints (3123) of the longitudinal beams and the middle wing plates (3122) of the longitudinal beams are symmetrically arranged and are respectively used for connecting the upper joint and the lower joint of the sleeper side floor (23) and the sleeper inner floor (24) and are welded into a whole;

preferably, the end heads of the sleeper side floor (23) and the sleeper inner floor (24) are designed into an inclined joint (231) and an inclined joint (241) of a closed cavity structure, and the sleeper side floor (23) and the sleeper inner floor (24) fall to two sides of a sleeper beam longitudinal beam (312) from the up-down direction;

preferably, a stringer process hole (312 a) is provided in the middle of the sleeper beam stringer (312) for mounting a stringer wire pipe (34) so that the under-vehicle wire pipe (5) can extend to both sides of the sleeper beam (31).

11. The rail train of claim 1, wherein the traction Liang Deban (42) is located intermediate the left and right risers (48), and the cover plate (43) is covered below the risers (48);

the traction Liang Deban (42), the vertical plate (48) and the cover plate (43) are connected with the coupler plate (49); wing plates (44) are arranged on two sides of the coupler plate (49), and a front support (45), a junction box framework (46) and an end beam (47) are arranged on the front side; preferably, the branch box framework (46) is connected with the front support (45), the end floor (41), the end beam (47) and the wing plates (44) into a whole structure.

12. The rail train of claim 1, wherein the front strut (45), the wing plate (44), the end floor (41) and the vertical plate (48) are respectively provided with a first wire passing hole (4 a), a second wire passing hole (4 b), a third wire passing hole (4 c) and a fourth wire passing hole (4 d) for installing the under-car wire pipe (5), so that the under-car wire pipes (5) among different parts of the under-car body structure (200) are mutually communicated.

13. The rail train of claim 1, wherein the first wire passing hole (4 a), the second wire passing hole (4 b), the third wire passing hole (4 c), the fourth wire passing hole (4 d) and the longitudinal beam process hole (312 a) are arranged in the structures of the sleeper beam assembly (3) and the traction seat (4), so that the wire pipe (5) under the vehicle is tightly attached to the sleeper side floor (23), the sleeper inner floor (24), the long floor (25), the end side floor (26), the end floor (41) and the traction Liang Deban (42).

14. A underframe wiring method of a rail train according to any one of claims 1 to 13, the underframe wire pipe (5) including a straddle-type wire (51), an inter-tank wire (52), a car end wire (53), a corbel wire (54), a brake pipe (55) and a tank wire (56); the straddle carrier cable (51) is positioned at the extreme end of the vehicle body lower structure (200);

the specific wiring method comprises the following steps:

the straddle carrier cables (51) are led out from a front inclined plane (46 a) of the junction box framework (46), are arranged in the longitudinal direction, extend into the junction box framework (46) on the other section of the car body at the front end and the rear end, and are connected with each other;

the inter-box cables (52) are positioned between the branch box frameworks (46) at the left side and the right side, and the cables are led out from a front support (45) positioned at the side surface of the branch box frameworks (46); at the same time, a part of the inter-box cable (52) is connected with the box cable (56) in the vehicle body upper structure (100) through the end floor (41);

the vehicle-end cables (53) are distributed between the branch box framework (46) and the sleeper beam (3), and the cables are led out from the rear inclined surface (46 b) of the branch box framework (46) and the back wing plate (44); part of the car end cables (53) penetrate through the vertical plates (48) and enter between the two vertical plates (48) of the traction seat (4), and then penetrate through the central wire passing pipe (33) and enter the inside of the sleeper beam component (3); the other part of the vehicle end cable (53) and the brake pipeline (55) respectively pass through the central line pipe (33) and the side line pipe (32) from the end-side floor (26) area outside the vertical plate (48) and enter the sleeper beam component (3);

after the car end cable (53) and the brake pipeline (55) enter the sleeper beam assembly (3), a part of the car end cable (53) transversely passes through the longitudinal beam process hole (312 a) and is connected with the sleeper beam cable (54) for the bogie (1); the sleeper beam cables (54) are arranged on two sides of the vehicle body lower structure (200); another portion of the vehicle end cable (53) passes through the central wire conduit (33') into the middle of the vehicle body understructure (200) and communicates with other equipment below the vehicle.