CN112706790B

CN112706790B - Rail vehicle chassis, under-vehicle equipment arrangement structure and rail vehicle

Info

Publication number: CN112706790B
Application number: CN202110174381.5A
Authority: CN
Inventors: 宋红; 崔志国; 周小莓; 刘海军; 崔友江
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2022-07-29
Anticipated expiration: 2041-02-07
Also published as: CN112706790A

Abstract

The invention discloses a railway vehicle chassis, an under-vehicle equipment arrangement structure and a railway vehicle, which solve the problem of diversification of the design of the railway vehicle chassis in the prior art, have the beneficial effects of facilitating the design of the railway vehicle and reducing the manufacturing cost, and have the following specific schemes: an arrangement structure of equipment under a vehicle is disclosed, wherein each underframe comprises an underframe body, at least one end of the underframe body is reserved with a dirt box installation space, and the underframe body is reserved with a water tank installation space; the both ends of chassis body are first end and second end, set up the interlude between first end and the second end, and the interlude is less than first end and second end setting, and the interlude includes two parallel first longerons, connects two first longerons through many first crossbeams, and the interval is set for the distance setting between the adjacent two first crossbeams, and some first crossbeams set up the interface that is used for installing the equipment subassembly under the part car.

Description

Rail vehicle chassis, under-vehicle equipment arrangement structure and rail vehicle

Technical Field

The invention relates to the field of rail transit, in particular to a rail vehicle chassis, an under-vehicle equipment arrangement structure and a rail vehicle.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

At present, rail vehicles are multi-marshalling, namely a group is formed by a plurality of vehicle bodies, the arrangement of a platform under the vehicle has diversified, individualized and special requirements due to different users, in order to meet the requirements of different users, for example, a toilet is arranged at each carriage, the toilet is only arranged at a second or a third carriage, the arrangement of a vehicle body chassis and equipment under the vehicle needs to be redesigned and reformed according to the requirements of customers every time, the design cost and the manufacturing cost of the rail vehicle are improved through single reformation, the vehicle delivery progress can be delayed, and the production efficiency is low.

And the platform under the rail vehicle is the platform to different speed of a motor vehicle, if further satisfy different user demands to different platforms, derive a plurality of motorcycle types, increased product design work load.

In addition, the existing vehicle body underframe has the following problems: it is not suitable for the installation of high and low floors.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the rail vehicle underframe, the installation space of the sewage tank is reserved at least at one end of the underframe body, the installation space of the water tank is reserved, the use requirement of a user can be effectively met, the underframe body is provided with a plurality of sections, and the middle section is higher than the two ends, so that the installation requirement of a high floor and a low floor is met.

The second purpose of the invention is to provide an under-vehicle equipment arrangement structure, which makes full use of space through arrangement of under-vehicle equipment components of the underframe, and can meet the balance requirement of the whole vehicle by arranging corresponding structures through reserved installation spaces of a water tank and a sewage tank according to the requirement of a user.

In order to realize the purpose, the invention is realized by the following technical scheme:

a rail vehicle underframe comprises an underframe body, wherein at least one end of the underframe body is reserved with a dirt box mounting space, and the underframe body is reserved with a water tank mounting space;

the both ends of chassis body are first end and second end, set up the interlude between first end and the second end, and the interlude is less than first end and second end setting, and the interlude includes two parallel first longerons, connects two first longerons through many first crossbeams, and the interval is set for the distance setting between the adjacent two first crossbeams, and some first crossbeams set up the interface that is used for installing the equipment subassembly under the part car.

According to the railway vehicle underframe, the first end is connected with the end part of the middle section through the connecting piece, the top part of the connecting piece is used for supporting the first end or the second end, and one side of the connecting piece is used for being connected with the middle section;

The first end comprises a first section and a second section which are connected through a sleeper beam, the second section is connected with a connecting piece, and the first section is provided with a traction beam.

The underframe of the railway vehicle is characterized in that the second section reserves the water tank installation space;

19 to 22 first cross members are provided for each of the intermediate sections;

and the interval between every two adjacent first cross beams arranged in the middle section is 400-950 mm.

According to the rail vehicle underframe, the connecting piece is the section steel, and one side of the section steel is provided with the supporting plate for fixing the middle section;

the second cross beams in the second section, which are close to the section steel, are connected through a connecting piece;

furthermore, the first section is provided with at least two second cross beams, the second section is provided with at least one third cross beam, the first section is conical or rectangular, the width of the second section is consistent with that of the middle section, and the middle part of the second section in the width direction is provided with a middle beam for connecting the sleeper beam with the connecting piece.

According to the railway vehicle underframe, the plurality of equipment compartment frameworks are arranged below the underframe body, and part of the equipment compartment frameworks are connected with part of the first cross beams.

In a second aspect, the invention further provides an under-vehicle equipment arrangement structure, which comprises the under frames, wherein each under frame is provided with a plurality of under-vehicle equipment components; the space set at intervals between two adjacent equipment assemblies under the vehicle is used for heat dissipation and/or maintenance.

The arrangement structure of the equipment under the vehicle comprises 4 groups of underframe, namely a first underframe, a second underframe, a third underframe and a fourth underframe, wherein at least one end of the first underframe and at least one end of the fourth underframe are provided with a vehicle body obstacle deflector.

According to the arrangement structure of the under-vehicle equipment, the first underframe is arranged from one end of the vehicle body barrier remover to the other end of the vehicle body barrier remover, and the under-vehicle equipment components sequentially mounted comprise the wheel flange lubricating device, the first air cylinder, the second air cylinder, the traction transformer, the first air compressor, the brake control device and the third air cylinder;

further, the wheel rim lubricating device and the antenna are installed in parallel; the parking brake device is arranged in parallel with the first air compressor; the second air cylinder is arranged in parallel with the equipment box; the brake control device and the waste discharge device are arranged in parallel; the third air cylinder is arranged in parallel with the sand box; a dirt box can be arranged on one side of the junction box; a water tank can be arranged between the first air compressor and the brake control device.

According to the arrangement structure of the under-vehicle equipment, the under-vehicle equipment components sequentially mounted on the second underframe from one end to the other end comprise a second air compressor, a traction cooling fan, a power supply, a traction converter, a contactor box, a storage battery box and at least one sand box;

Further, a dirt box can be arranged at the end part of the second underframe, which is close to the sand box; the contactor box and the emergency ventilation inverter are installed in parallel; a sand box controller is arranged on one side, away from the sewage box, of the sand box, a waste discharge device is arranged between the sand box controller and the storage battery box, and the waste discharge device and the brake control device are arranged in parallel.

According to the arrangement structure of the under-vehicle equipment, the under-vehicle equipment components sequentially mounted on the third underframe from one end to the other end comprise the sewage tank, the traction cooling fan, the waste discharge device, the storage battery tank, the traction converter, the water tank, the power supply and the second traction cooling fan;

further, a second air compressor is mounted at the other end, opposite to the dirt box, of the third underframe; an auxiliary loop junction box is arranged between the power supply and the traction cooling fan adjacent to the power supply, and the auxiliary loop junction box and the emergency ventilation inverter are arranged in parallel; and the third underframe is provided with a control circuit junction box respectively at the inner sides of the dirt box and the second air compressor.

According to the arrangement structure of the under-vehicle equipment, the under-vehicle equipment components sequentially mounted on the fourth underframe from one end to the other end comprise the sand box, the brake control device, the first air compressor, the equipment box, the traction transformer and the first air cylinder;

Further, a water tank can be arranged between the traction transformer and the first air cylinder; a sewage tank can be arranged at one end of the fourth underframe, which is close to the sand box; a sand box control box is arranged on one side of the sand box, and is arranged in parallel with the parking brake device and the power supply; the brake control device and the waste discharge device are arranged in parallel; the equipment box and the second air cylinder are installed in parallel.

In a third aspect, the invention further provides a rail vehicle, which comprises the arrangement structure of the equipment under the vehicle.

The beneficial effects of the invention are as follows:

1) according to the rail vehicle underframe provided by the invention, the installation space of the water tank and the dirt tank is reserved, so that the use requirements of different users can be effectively met, and the installation of a high floor and a low floor is met by arranging the middle section lower than the first end and the second end; and through the reasonable arrangement of the cross beams and the longitudinal beams, the reasonable installation of corresponding equipment components under the vehicle is facilitated.

2) The invention realizes the reasonable arrangement of the equipment components under the train, can realize the reasonable arrangement of the equipment components under the train in the 4-marshalling railway vehicle, fully ensures the heat dissipation space, avoids mutual influence when the running wind flows through each equipment, ensures the maintenance space of each equipment, avoids repeated wiring and ensures that the influence of the equipment components under the train on the gravity center of the whole train is in a reasonable range.

3) According to the invention, the sewage tank and the reserved sewage tank are arranged at the end part of the underframe, so that end equipment and car coupler spaces are effectively avoided, and the volume requirements of different sewage tanks can be met; with the water tank mountable in the middle part of chassis, not only effectively satisfy the different volume demands of water tank, through the setting of other structures moreover, the equilibrium that can guarantee the quality setting is convenient for realize the equilibrium and control the vibration.

4) According to the invention, the sewage tank is arranged at the end part of the underframe, the water tank is arranged at the middle part (not the middle center), and the sewage tank and the water tank are both arranged at the positions with small balance influence on the equipment components under the vehicle, so that the interaction of weight change is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a front view of a first chassis of the present invention;

FIG. 2 is a top plan view of the arrangement of the first chassis of the present invention;

FIG. 3 is an enlarged schematic view of the position of the C-section steel of the present invention.

FIG. 4 is a front view of a third chassis of the present invention;

FIG. 5 is a top plan view of a third chassis of the present invention;

FIG. 6 is a schematic view of a first undercarriage mounted underslung equipment assembly of the present invention;

FIG. 7 is a schematic view of a second undercarriage mounted under-vehicle equipment assembly of the present invention;

FIG. 8 is a schematic view of a third undercarriage mounted underslung equipment assembly of the present invention;

fig. 9 is a schematic view of a fourth undercarriage mounted under-vehicle equipment assembly of the present invention.

Wherein: 1. the first end, 2, the middle section, 3, the steering limit space, 4, the equipment compartment framework, 5, the second section, 6, the sleeper beam, 7, the first section, 8, the traction beam, 9, the first longitudinal beam, 10, the fourth longitudinal beam, 11, the first cross beam, 12, the connector, 13, the middle beam, 15, C-shaped steel, 16, the supporting plate, 17, the connecting beam and 18, the third cross beam;

19, an STM antenna, 20, a TMIS antenna, 21, a rim lubricating device, 22, a BP rescue device, 23, a first air cylinder, 24, CT2, 25, CT1, 26, an equipment box, 27, an external power connector, 28, a safety interlocking box, 29, CT3, 30, a first air compressor, 31, a grounding resistor, 32, a waste discharge device, 33, a sand box control box, 34, a sand box, 35, a third air cylinder, 36, a junction box, 37, a dirt box, 38, an anti-skid valve, 39, a BTM antenna, 40, a one-way inverter power supply, 41, a driver outdoor unit, 42, an emergency ventilation inverter, 43, a second air cylinder, 44, a traction transformer, 45, a parking brake device, 46, a water tank, 47, a brake control device, 48, a cleaning tread electromagnetic valve and 49, a control circuit junction box;

50. A second air compressor, 51, an over-split phase sensor, 52, a traction cooling fan, 53, a traction converter, 54, a contactor box, 55, a base antenna, 56, a battery box, 57, an auxiliary loop junction box, 58, a second cross beam.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.

As described in the background art, in the prior art, the underframe of the car body needs to be reconstructed again according to different user requirements, and in order to solve the technical problems, the invention provides the underframe of the rail car, the arrangement structure of the equipment under the car and the rail car.

Example one

In an exemplary embodiment of the present invention, a rail vehicle underframe, as shown in fig. 1 and 2, includes an underframe body, at least one end of the underframe body is reserved with a dirt tank installation space, and the underframe body is reserved with a water tank installation space, and includes:

each underframe comprises an underframe body, wherein at least one end of the underframe body is reserved with a dirt box mounting space, and the underframe body is reserved with a water tank mounting space;

The both ends of chassis body are first end 1 and second end, set up interlude 2 between first end and the second end, and the interlude is less than first end and second end setting, and the interlude includes two parallel first longerons, connects two first longerons 9 through many first crossbeams, and the interval is set for the distance setting between the adjacent two first crossbeams 11, and some first crossbeams 11 set up the interface 12 that is used for installing equipment module under the part car.

The chassis body is provided with first end, interlude and second end, and the interlude is less than first end and second end setting for the chassis body forms the height floor, and the interlude sets up the interface through first crossbeam, is used for the installation of car equipment subassembly.

In the underframe body, a first end is connected with the end part of a middle section through a connecting piece, the top of the connecting piece is used for supporting the first end or a second end, one side of the connecting piece is used for connecting with the middle section, a steering limiting space 3 is reserved below the first end and the second end, two steering limiting spaces are reserved below the first end and the second end, a set distance is reserved between the two steering rod limiting spaces, and the steering limiting space 3 needs to be avoided when an equipment assembly under a vehicle is installed;

the first end comprises a first section 7 and a second section 5 which are connected through a sleeper beam, the first section 7 is arranged outside, the second section 6 is arranged inside, the second section is connected with the connecting piece, the first section is provided with a traction beam 8, and the connection of two adjacent underframe is realized through the traction beam.

In addition, in order to facilitate the arrangement of the water tank and the sewage tank, a sewage tank installation space is reserved in the first section of the underframe body, and a water tank installation space is reserved in the middle section of the underframe body;

in the embodiment, in order to realize the installation of the equipment assembly under the vehicle, 19 to 22 first cross beams are arranged at each middle section;

the distance between two adjacent first cross beams 11 arranged at each middle section is 400mm-950mm, and the distance between the first cross beams is adjusted according to the under-vehicle equipment assembly to be installed.

Specifically, in this embodiment, the connecting member is a section steel, and as shown in fig. 3, the connecting member is specifically a C-shaped steel 15, a top of the C-shaped steel 15 is connected to the first end through an angle steel, a bottom of the C-shaped steel is used for being connected to the equipment compartment framework 4, and a supporting plate 16 for fixing the middle section is disposed on one side of the C-shaped steel;

further, at least two second cross beams 58 are arranged on the first section of the first end or the second end, at least one third cross beam 18 is arranged on the second section, the number of the third cross beams is usually one, the first section is conical or rectangular, the conical first section is used for arranging a locomotive, and the rectangular underframe body of the first end or the second end is used for installing a carriage;

the width of the second section is consistent with that of the middle section, and a middle beam 13 is arranged in the middle of the width direction of the second section to connect the sleeper beam 6 with the connecting piece, so that the supporting strength of the second section is improved.

Correspondingly, the two ends of the second cross beam 58 of the first section are respectively provided with four second beams, the two second beams in the middle are arranged in parallel, the extension lines of the second beams at the outer sides are arranged in a crossed manner, and the end parts of the two second beams in the middle of part of the underframe body are arranged in a splayed manner; because of the setting of many second roof beams like this for the second crossbeam supports through two second roof beams, and the both sides of first section central axis are located to the second crossbeam like this, and the second crossbeam of first section central axis both sides of chassis body can be located on a straight line or many straight lines, and the straight line of both sides can be for the asymmetric setting of first section central axis moreover.

The second section is provided with third beams at two ends of the third cross beam respectively, and the third beams are parallel to each other.

In some examples, the third beam 18 of the second section is an H-beam, the H-beam is disposed below the third beam, and 24-25 beams (herein, the beams include the third beam and the first beam) are disposed between the second section and the middle section, including the C-section steel; in addition, in the middle section, the first cross beam close to the C-shaped steel is connected with the C-shaped steel through the connecting beam 17, the number of the connecting beams is two, and the width of each connecting beam is smaller than that of the middle beam.

In this embodiment, the first cross beam may be an i-beam or an H-beam, and the bottom end of the i-beam is in a door shape; the second cross beam and the third cross beam can be H-shaped steel, and the structural forms of the first longitudinal beam, the second beam, the third beam and the fourth longitudinal beam are conventional forms and are not limited.

Considering that an equipment cabin is arranged below the vehicle body, a plurality of equipment cabin frameworks are arranged below the chassis body and used for installing the equipment cabin so as to protect equipment components under the vehicle, part of the equipment cabin frameworks are connected with part of the first cross beam, and part of the equipment cabin frameworks are connected with the bottom of the first section; the distance between the equipment cabin framework and the equipment components under the vehicle is more than or equal to 250 mm.

Example two

The embodiment provides an arrangement structure of under-vehicle equipment, which comprises the under frames of the first embodiment, wherein each under frame is provided with a plurality of under-vehicle equipment components; the space set at intervals between two adjacent equipment assemblies under the vehicle is used for heat dissipation and/or maintenance.

The utility model provides an equipment arrangement structure under car, includes 4 groups the chassis, be first chassis, second chassis, third chassis and fourth chassis respectively, these four chassis are connected in order, and the at least one end of first chassis and fourth chassis sets up the automobile body and arranges the barrier ware.

As shown in fig. 1 and fig. 2, a total of 20 second cross beams are arranged in the middle section of the first underframe, and the distance between the first cross beam closest to the C-shaped steel in the middle section and the C-shaped steel is the smallest, and may be 400 mm; and first chassis interlude supports traction transformer through three first crossbeams, and the height that highly is less than other first crossbeams of these three first crossbeams sets up the height, and first chassis interlude sets up two fourth longerons 10 moreover, and the inboard of first longeron is located to the fourth longeron, and fifth first crossbeam in interlude middle part is connected to the fourth longeron to guarantee the support intensity to traction transformer.

And in the five first cross beams connected by the fourth longitudinal beam, the distance between two adjacent first cross beams is 720-780 mm.

One end of the first underframe is used for mounting a cab of the railway vehicle, the first underframe is arranged from one end of the vehicle body barrier remover to the other end, and the sequentially mounted under-vehicle equipment components comprise a wheel flange lubricating device 21, a first air cylinder 23, a second air cylinder 43, a traction transformer 44, a first air compressor 30, a brake control device 47 and a third air cylinder 35;

in the first chassis, the rim lubrication device 21 is mounted in parallel with the antenna; the parking brake device 45 is arranged in parallel with the first air compressor 30; the second reservoir 43 is mounted in parallel with the equipment box 26; the brake control device is installed in parallel with the waste discharge device 32; the third reservoir is mounted in parallel with the sand box 34; a dirt box can be arranged at the end part of the first underframe far away from the cab, the inner side of the dirt box can be arranged on the junction box 36, and the side part of the junction box is provided with a control circuit junction box 49; a water tank 46 may be installed between the first air compressor and the brake control device 47.

The number of the sand boxes is two, a third air cylinder is arranged between the two sand boxes, and a sand box control box 33 is arranged on the side portion of each sand box.

In addition, referring to fig. 6, the second section of the second ends of the two sides of the first underframe is respectively provided with an anti-skid valve 38, and the anti-skid valves are arranged between the two middle beams 13; the antenna is a BTM (transponder transmission unit) antenna 39, and a TMIS antenna 20 is mounted on a first stage of an end portion of a railway vehicle cab provided on a first chassis, and STM (track circuit information sensor) antennas 19 are provided on both sides of the TMIS antenna, respectively.

A BP rescue device (rescue conversion device) 22 is arranged between the wheel flange lubricating device and the first air reservoir, and the BP rescue device 22, a power supply and a cab outer machine 41 are arranged in parallel; the other side of the first reservoir opposite to the BP rescue device is provided with a CT1 (a current transformer CT1)25 and a CT2 (a current transformer CT2) 24.

In the first chassis, a safety interlock box 28 is installed at one side of the traction transformer, a CT3 (current transformer CT3)29 is provided between the traction transformer 44 and the first air compressor, and a grounding resistor 31 is provided between the middle stage water tank and the waste discharging device.

The middle sections of the second underframe and the third underframe are provided with 21 second cross beams, the second underframe is arranged from one end to the other end, and as shown in the reference figure 7, the sequentially mounted under-vehicle equipment components comprise a second air compressor 50, a traction cooling fan 52, a power supply, a traction converter 53, a contactor box 54, a storage battery box 56 and at least one sand box 34;

In the second chassis, a filth box 37 may be installed at an end of the second chassis adjacent to the sand box 34, and a control circuit connection box 49 may be installed at an inner side of the filth box 37 through the second chassis; the contactor box and the emergency ventilation inverter are installed in parallel; a sand box controller is arranged on one side of the sand box far away from the dirt box, a waste discharge device 32 is arranged between the sand box controller and the storage battery box, and the waste discharge device, a brake control device and a tread cleaning electromagnetic valve 48 are arranged in parallel;

moreover, the second chassis is provided with a neutral section passing sensor (automatic neutral section passing signal induction receiver) 51 at the side of the second air compressor, and a control circuit junction box 49 at the side of the neutral section passing sensor; a traction cooling fan and an antiskid valve are arranged in parallel, a power supply is arranged on one side of the traction cooling fan, a water tank can be arranged between the traction cooling fan and the traction converter, and the water tank is arranged in a water tank reserved space in the middle section; a grounding resistor is arranged between the contactor box 54 and the storage battery box 56;

the second chassis sand box is also provided with two sand boxes, a traction cooling fan is arranged between the two sand boxes, and one side of the second chassis, which is close to the sand boxes, is also provided with an anti-skid valve.

Further, referring to fig. 4 and 5, the under-vehicle equipment components sequentially mounted on the third chassis from one end to the other end include a dirt box, a traction cooling fan, a waste discharge device, a storage battery box, a traction converter, a water tank, a power supply and a second traction cooling fan;

In the third chassis, as shown in fig. 8, the other end of the third chassis opposite to the filth tank is mounted with a second air compressor; an auxiliary loop junction box 57 is arranged between the power supply and the traction cooling fan adjacent to the power supply, and the auxiliary loop junction box and the emergency ventilation inverter are arranged in parallel; and the third underframe is provided with a control circuit junction box respectively at the inner sides of the dirt box and the second air compressor.

Likewise, the third chassis provides a control circuit connection box at an inner side of the filth box; the two sides of the traction cooling fan are respectively provided with a sand box, one side of the sand box is provided with a sand box control box, and the sand box control box and an anti-skid valve are arranged in parallel; the waste discharge device and the brake control device are arranged in parallel, and one side of the brake control device is provided with a tread cleaning electromagnetic valve.

And a traction cooling fan is arranged on one side of the auxiliary loop junction box, which is opposite to the power supply, and an anti-skid valve is arranged on one side of the traction cooling fan. The third chassis sets up the second air compressor machine for the other end of filth case, and the lateral part of second air compressor machine sets up the excessive phase separation sensor, and the inboard installation control circuit junction box of second air compressor machine.

The middle section of the fourth underframe is provided with 20 second cross beams, the fourth underframe is arranged from one end to the other end, and as shown in the reference figure 9, the sequentially installed equipment components under the vehicle comprise a sand box, a brake control device, a first air compressor, an equipment box, a traction transformer and a first air cylinder;

Further, a water tank can be arranged between the traction transformer and the first air reservoir; a sewage tank can be arranged at one end of the fourth underframe, which is close to the sand box, and the sewage tank is arranged in a reserved space of the sewage tank of the fourth underframe; a sand box control box is arranged on one side of the sand box, and is arranged in parallel with the parking brake device and the power supply; the brake control device and the waste discharge device are arranged in parallel; the equipment box and the second air cylinder are installed in parallel.

In the fourth underframe, a junction box is arranged at the side part of the sewage tank, and a control circuit junction box is arranged at the inner side of the reserved space of the sewage tank; similarly, two sand boxes are arranged, and the two sand boxes and the third air cylinder are arranged in parallel; a tread cleaning electromagnetic valve is arranged on the side part of the brake control device close to the first air compressor;

the side part of a first air compressor of a fourth underframe is provided with a CT1 and a CT2, an external power connector is arranged between an equipment box and a traction transformer, a CT3 is arranged between the traction transformer and a water tank, a safety interlocking box is arranged in parallel with the CT3, a BP rescue device, an emergency ventilation inverter and an outer machine of a cab are arranged in parallel, and the emergency ventilation inverter is arranged on the side part of a first air cylinder;

the other end of the fourth chassis opposite to its dirt box 37 is used for installing the cab, the fourth chassis is provided with an anti-skid valve near the second section of the cab, a base antenna 55 is installed between the anti-skid valve and the emergency ventilation inverter 42, and the base antenna is installed in parallel with the wheel rim lubricating device.

The distance between the first cross beam closest to the C-shaped steel in the middle section of the fourth underframe and the C-shaped steel is the smallest and can be 400 mm; and the traction transformer is supported through three first crossbeams in fourth chassis interlude, and the height that highly is less than other first crossbeams of these three first crossbeams sets up the height, and the fourth chassis interlude sets up two fourth longerons moreover, and the inboard of first longeron is located to the fourth longeron, and five first crossbeams in interlude middle part are connected to the fourth longeron to guarantee the support intensity to traction transformer.

It should be noted that the power supplies mentioned above are all single inverter power supplies 40, and the parallel installation mentioned above means that corresponding under-vehicle equipment components are installed through two adjacent cross beams and the space between the two cross beams.

Wherein the equipment boxes are high-voltage equipment boxes; the first reservoir is referred to as the 100L reservoir, the second reservoir is referred to as the 5L reservoir, and the third reservoir is referred to as the 50L reservoir.

The volume of the water tank can be 400L, 700L and 1000L, the distance between two adjacent first cross beams for supporting the water tank is 750-780mm, preferably 765mm, so that the volume of the water tank in the reserved space of each vehicle can meet the water requirement of the configuration of a toilet and a water boiler on the premise of meeting the balance of vehicle types and the uniformity of maintenance space, and design change is not needed according to different requirements of the volume of the water tank.

Of course, the first air compressor means a main air compressor, and the second air compressor means an auxiliary air compressor.

In addition, it should be noted that the platform of the under-vehicle device provided by the embodiment is applicable to platforms with different vehicle speeds.

EXAMPLE III

The embodiment provides a railway vehicle, which comprises the arrangement structure of the equipment under the vehicle in the second embodiment.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rail vehicle underframe is characterized in that each underframe comprises an underframe body, at least one end of the underframe body is reserved with a dirt tank installation space, and the underframe body is reserved with a water tank installation space;

the two ends of the underframe body are a first end and a second end, a middle section is arranged between the first end and the second end and is lower than the first end and the second end, and a water tank installation space is reserved in the second section; the middle section comprises two parallel first longitudinal beams, the two first longitudinal beams are connected through a plurality of first cross beams, and part of the first cross beams are provided with interfaces for mounting part of under-vehicle equipment components;

The first end is connected with the end part of the middle section through a connecting piece, the top of the connecting piece is used for supporting the first end or the second end, and one side of the connecting piece is used for being connected with the middle section; the first end comprises a first section and a second section which are connected through a sleeper beam, the second section is connected with a connecting piece, and the first section is provided with a traction beam;

the connecting piece is C-shaped steel, the top of the C-shaped steel is connected with the first end through angle steel, the bottom of the C-shaped steel is used for being connected with the equipment cabin framework, and a supporting plate used for fixing the middle section is arranged on one side of the C-shaped steel;

the first section is provided with at least two second cross beams, the second section is provided with at least one third cross beam, the first section is conical or rectangular, the width of the second section is consistent with that of the middle section, and the middle part of the second section in the width direction is provided with a middle beam for connecting the sleeper beam with the connecting piece.

2. The underframe of claim 1, wherein two adjacent first cross beams are spaced apart by a set distance;

3. The railway vehicle underframe of claim 1, wherein a plurality of equipment compartment frameworks are arranged below the underframe body, and part of the equipment compartment frameworks are connected with part of the first cross beams;

In the partial underframe body, the middle sections are connected with a plurality of continuous first cross beams through fourth longitudinal beams, and the fourth longitudinal beams are arranged on the inner sides of the first longitudinal beams.

4. An arrangement structure of under-vehicle equipment, which is characterized by comprising a plurality of under-vehicle equipment components, wherein the under-vehicle equipment components are arranged on each under-vehicle equipment component; the space set at intervals between two adjacent equipment assemblies under the vehicle is used for heat dissipation and/or maintenance.

5. The arrangement structure of the equipment under the vehicle as claimed in claim 4, wherein the arrangement structure comprises 4 groups of said chassis, namely a first chassis, a second chassis, a third chassis and a fourth chassis, and at least one end of the first chassis and the fourth chassis is provided with a vehicle body barrier.

6. The arrangement structure of the equipment under the vehicle as claimed in claim 5, wherein the first underframe is arranged from one end of the vehicle body obstacle deflector to the other end, and the equipment components under the vehicle, which are sequentially installed, comprise a rim lubricating device, a first air cylinder, a second air cylinder, a traction transformer, a first air compressor, a brake control device and a third air cylinder;

further, the wheel rim lubricating device and the antenna are installed in parallel; the parking brake device is arranged in parallel with the first air compressor; the second air cylinder is arranged in parallel with the equipment box; the brake control device and the waste discharge device are arranged in parallel; the third air cylinder is arranged in parallel with the sand box; one end of the first underframe can be provided with a sewage tank; a water tank can be arranged between the first air compressor and the brake control device.

7. The arrangement structure of under-vehicle equipment according to claim 5, wherein the under-vehicle equipment components sequentially mounted on the second chassis from one end to the other end include a second air compressor, a traction cooling fan, a traction converter, a contactor box, a storage battery box and at least one sand box;

further, a dirt box can be arranged at the end part of the second underframe close to the sand box; the contactor box and the emergency ventilation inverter are installed in parallel; a sand box controller is arranged on one side of the sand box, which is far away from the sewage box, a waste discharge device is arranged between the sand box controller and the storage battery box, and the waste discharge device and the brake control device are arranged in parallel;

a water tank can be arranged between the traction cooling fan and the traction converter.

8. The arrangement structure of the equipment under the vehicle as claimed in claim 5, wherein the equipment components under the vehicle, which are sequentially installed from one end to the other end of the third chassis, comprise a dirt box, a traction cooling fan, a waste discharge device, a storage battery box, a traction converter, a water tank, a power supply and a second traction cooling fan;

9. The arrangement structure of the equipment under the vehicle as claimed in claim 5, wherein the equipment components under the vehicle, which are sequentially installed from one end to the other end of the fourth underframe, comprise a sand box, a brake control device, a first air compressor, an equipment box, a traction transformer and a first air cylinder;

further, a water tank can be arranged between the traction transformer and the first air reservoir; a sewage tank can be arranged at one end of the fourth underframe, which is close to the sand box; a sand box control box is arranged on one side of the sand box, and is arranged in parallel with the parking brake device and the power supply; the brake control device and the waste discharge device are arranged in parallel; the equipment box and the second air cylinder are installed in parallel.

10. A rail vehicle, characterized in that it comprises an under-vehicle equipment arrangement according to any one of claims 4-9.