CN109178009B - 100% low-floor rail vehicle underframe and 100% low-floor rail vehicle - Google Patents

100% low-floor rail vehicle underframe and 100% low-floor rail vehicle Download PDF

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Publication number
CN109178009B
CN109178009B CN201811325158.0A CN201811325158A CN109178009B CN 109178009 B CN109178009 B CN 109178009B CN 201811325158 A CN201811325158 A CN 201811325158A CN 109178009 B CN109178009 B CN 109178009B
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CN
China
Prior art keywords
plate
cover plate
aisle
rail vehicle
end frame
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Application number
CN201811325158.0A
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Chinese (zh)
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CN109178009A (en
Inventor
陈赞平
刘永强
水文菲
帅纲要
陈雪艳
陈正
王丽
李丽
何文佳
苑明
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CRRC Zhuzhou Locomotive Co Ltd
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CRRC Zhuzhou Locomotive Co Ltd
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Priority to CN201811325158.0A priority Critical patent/CN109178009B/en
Publication of CN109178009A publication Critical patent/CN109178009A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F1/00Underframes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61DBODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00Construction details of vehicle bodies
    • B61D17/04Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/10Floors

Abstract

The invention discloses a 100% low-floor rail vehicle underframe, which comprises a middle structure with an aisle bottom plate, a front end frame and a rear end frame, wherein the middle structure extends along a horizontal plane and is used for passengers to stand, the top surfaces of the front end frame and the rear end frame extend along the horizontal plane and are fixedly arranged at the front end and the rear end of the middle structure respectively, and built-in floors, the top surfaces of the front end frame and the rear end frame are flush with the top surface of the aisle bottom plate and are used for the passengers to stand, are arranged on the top surfaces of. Because the aisle bottom plate extends along the horizontal plane, the top surfaces of the front end frame and the rear end frame which are provided with the built-in bottom plates are flush with the top surface of the aisle bottom plate, and obviously, areas for passengers to stand are extended along the same horizontal plane, the underframe of the 100 percent low-floor rail vehicle enables a passenger room standing area to be completely flat without slopes, and is convenient for passengers to pass. The present invention also provides a 100% low floor rail vehicle including a 100% low floor rail vehicle underframe which improves the comfort of the passenger compartment standing area.

Description

100% low-floor rail vehicle underframe and 100% low-floor rail vehicle
Technical Field
The invention relates to the technical field of rail transit, in particular to a 100% low-floor rail vehicle underframe. The invention also relates to a 100% low-floor rail vehicle.
Background
The underframe of the low-floor rail vehicle is usually smaller in vertical distance from the rail surface, a platform does not need to be arranged independently, and the low-floor rail vehicle has the advantages of easiness in route planning, low investment cost, short construction period and the like and has a wide market prospect.
The low-floor rail vehicle is classified into a 70% low-floor rail vehicle and a 100% low-floor rail vehicle in terms of the area of the low floor in the standing area of the passenger room. The undercarriages of 70% low floor rail vehicles are generally not on the same horizontal line, and high steps exist at the bogies, so that the passenger passing is unchanged, and 100% low floor rail vehicles are increasingly popular. However, although the interior of the existing 100% low floor rail vehicle is stepless, the passenger compartment standing area of the 100% low floor rail vehicle is often distributed with a plurality of longitudinal slopes along the length direction of the underframe and is still inconvenient to pass due to limited technical conditions.
Therefore, how to eliminate the longitudinal slope existing in the passenger room standing area of the 100% low-floor rail vehicle to ensure the passengers to pass through without obstacles is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention is directed to a 100% low-floor rail vehicle underframe, which makes a standing area of a passenger compartment completely flat without a slope, and facilitates passengers to pass through. It is another object of the present invention to provide a 100% low floor railway vehicle that provides improved comfort in the standing area of the passenger compartment.
The specific scheme is as follows:
the invention provides a 100% low floor rail vehicle underframe, comprising:
a central structure having a gangway floor extending along a horizontal plane for passengers to stand on;
the top surface all extends along the horizontal plane and sets firmly respectively in front end frame and the rear end frame at both ends around the middle part structure, the top surface of front end frame with the top surface of rear end frame all is equipped with the top surface of passageway bottom plate flushes the built-in floor that supplies the passenger to stand.
Preferably, the middle structure comprises:
the seat mounting plate is fixedly arranged on the side surface of the aisle bottom plate, protrudes upwards along the vertical direction relative to the aisle bottom plate and is used for supporting a seat;
the two sides of the transition connecting plate are respectively abutted with the aisle bottom plate and the seat mounting plate, the top of the transition connecting plate vertically extends to be abutted with the bottom of the seat mounting plate, and the transition connecting plate is used for enabling the bottom of the transition connecting plate to penetrate through the aisle bottom plate to avoid the transverse shock absorber and reducing stress between the aisle bottom plate and the seat mounting plate.
Preferably, the middle structure further comprises a stepped pedal arranged above the motor and used for passengers to step on, the seat mounting plates are symmetrically and fixedly arranged on two sides of the stepped pedal, and the seat mounting plates are provided with stepped structures arranged above the bogie.
Preferably, the bottom of the aisle floor is provided with a plurality of aisle reinforcing ribs extending along the length direction to increase the strength.
Preferably, the front end frame includes:
the top surface of the front end beam extends along the horizontal plane, is lower than the top surface of the aisle bottom plate and is used for being connected with a cab;
the top surface with the top surface of front end roof beam flushes and connect in middle part structure with the linking frame between the front end roof beam.
Preferably, the front end beam includes:
the front top cover plate and the front bottom cover plate are arranged in parallel along the vertical direction; the front top cover plate and the front bottom cover plate are provided with a plurality of lightening holes which are communicated with each other;
and the front reinforcing plate is arranged between two adjacent lightening holes, is vertically fixedly connected between the front top cover plate and the front bottom cover plate and is used for supporting the front top cover plate and the front bottom cover plate, and is provided with lightening holes.
Preferably, the front end beam includes:
the front end plate is used for being connected with the cab and is provided with a plurality of installation waist holes which are used for being perpendicular to the connecting waist holes of the cab to compensate the height difference between the front end beam and the cab.
Preferably, the rear end frame includes:
the top surface of the rear top cover plate extends along the horizontal direction and is lower than the top surface of the aisle bottom plate;
the rear bottom cover plate is arranged in parallel to the rear top cover plate along the vertical direction;
and the rear end plate is vertically and fixedly connected between the rear top cover plate and the rear bottom cover plate.
Preferably, the rear top cover plate and the rear bottom cover plate are provided with a plurality of lightening holes which are communicated with each other, and the rear end frame further comprises:
and the rear reinforcing plate is positioned between two adjacent lightening holes, is vertically fixedly connected between the rear top cover plate and the rear bottom cover plate and is used for supporting the rear top cover plate and the rear bottom cover plate, and is provided with lightening holes.
The invention also provides a 100% low-floor rail vehicle, which comprises a vehicle body, wherein the vehicle body comprises the chassis of the 100% low-floor rail vehicle.
Compared with the background art, the 100% low-floor rail vehicle underframe provided by the invention comprises a middle structure with an aisle bottom plate extending along a horizontal plane for passengers to stand, a front end frame and a rear end frame, wherein the top surfaces of the front end frame and the rear end frame extend along the horizontal plane and are fixedly arranged at the front end and the rear end of the middle structure respectively, and the top surfaces of the front end frame and the rear end frame are provided with built-in floors, the top surfaces of the front end frame and the rear end frame are flush with the top surface of the aisle bottom plate, so that the passengers stand.
Because the aisle bottom plate extends along a horizontal plane, the top surfaces of the front end frame and the rear end frame which are provided with the built-in bottom plate are flush with the top surface of the aisle bottom plate, and obviously, areas for passengers to stand are extended along the same horizontal plane, the underframe of the 100% low-floor rail vehicle enables a passenger room standing area to be completely flat without slopes, and is convenient for passengers to pass.
The invention also provides a 100% low-floor rail vehicle comprising the 100% low-floor rail vehicle underframe, and the passenger room standing area of the underframe is completely flat and has no slope, so that the passenger room standing area can be fully utilized, and the comfort of the passenger room standing area is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic front view of a 100% low floor rail vehicle undercarriage according to one embodiment of the present invention;
FIG. 2 is a schematic rear view of a 100% low floor rail vehicle undercarriage;
FIG. 3 is a schematic front view of the middle structure of FIG. 1;
FIG. 4 is a schematic rear view of FIG. 3;
FIG. 5 is a schematic structural view of the transition joint plate of FIG. 1;
FIG. 6 is a schematic structural view of the front end frame of FIG. 1;
fig. 7 is a schematic structural view of the rear end frame of fig. 1.
The reference numbers are as follows:
the structure comprises a middle structure 1, a front end frame 2, a rear end frame 3, lightening holes 4, side beams 5 and lifting lugs 6;
the structure comprises a passageway bottom plate 11, a seat mounting plate 12, a transition connecting plate 13, a stepped pedal 14, a supporting side plate 15, a passageway side plate 16 and a connecting side beam 17;
a step surface 121 and a tread bottom plate 122;
a passageway reinforcing rib 111;
a support surface 131, a connection surface 132, and a wing 133;
a front end beam 21 and a connection frame 22;
a front top cover plate 211, a front bottom cover plate 212, a front reinforcing plate 213, and a front end plate 214;
a mounting waist hole 2141;
a rear top cover plate 31, a rear bottom cover plate 32, a rear end plate 33, a rear reinforcing plate 34, and a damper mount 35.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific examples.
Referring to fig. 1 and 2, fig. 1 is a front schematic view of a 100% low-floor rail vehicle underframe according to an embodiment of the invention; fig. 2 is a schematic rear view of a 100% low floor rail vehicle undercarriage.
The embodiment of the invention discloses a 100% low-floor rail vehicle underframe, which comprises a middle structure 1, a front end frame 2 and a rear end frame 3.
Referring to fig. 3 to 5, fig. 3 is a front view of the middle structure in fig. 1; FIG. 4 is a schematic rear view of FIG. 3; fig. 5 is a schematic structural diagram of the transition connecting plate in fig. 1.
The central structure 1 has a walkway floor 11 extending in a horizontal plane for passengers to stand. Front end plate 214 and rear end plate 33 set firmly respectively in the front and back both ends of middle part structure 1, and front end plate 214 and rear end plate 33's top surface all extends along the horizontal plane, and the top surface of front end frame 2 and the top surface of rear end frame 3 all are equipped with the top surface and flush the built-in floor that supplies the passenger to stand with the top surface of passageway bottom plate 11. Because passengers usually stand on the aisle bottom plate 11 and the built-in floor, and the top surface of the aisle bottom plate 11 and the top surface of the built-in floor are on the same horizontal plane, the standing area of the passenger room is completely flat without slopes, and the passengers can conveniently pass through the aisle.
In this particular embodiment, the central structure 1 includes a seat mounting plate 12 and a transition web 13. The seat mounting plates 12 are fixedly disposed on the side surfaces of the aisle floor 11, and specifically, the seat mounting plates 12 are symmetrically welded to the two sides of the aisle floor 11. The seat mounting plate 12 is raised vertically upward relative to the aisle floor 11 to support the seat for comfortable seating by a passenger.
The both sides of transition connecting plate 13 respectively with passageway bottom plate 11 and seat mounting panel 12 looks butt, its top along vertical extension to with the bottom of seat mounting panel 12 to lean on, and the bottom plate passes passageway bottom plate 11 to under the advance of avoiding transverse shock absorber, fully reduce the stress between passageway bottom plate 11 and the seat mounting panel 12, be favorable to prolonging the life of passageway bottom plate 11 and seat mounting panel 12.
In this embodiment, in order to minimize the concentrated stress between the aisle floor 11 and the seat mounting plate 12, the transition connection plate 13 is designed by using finite element software to perform an optimal design to obtain the support surface 131 with an optimal curved shape, usually without interfering with the lateral shock absorber, and accordingly, the bottom of the seat mounting plate 12 is provided with a curved groove matching with the curved surface of the support surface 131. In particular, the transition connection panel 13 comprises a connection surface 132 which is in abutment with the aisle floor 11 and the seat mounting panel 12, respectively, and which is perpendicular to the support surface 131. To improve the strength and fatigue resistance of the transition web 13, both the top and bottom sides of the connecting face 132 are provided with wings 133 extending along the side edges. Preferably, the transition connecting plate 13 is formed by casting or forging to further enhance the strength of the transition connecting plate 13, thereby enhancing the reliability.
Preferably, two seat mounting plates 12 are respectively disposed on two sides of the aisle floor 11, one transition connecting plate 13 is respectively disposed on one side of the bottom end of each seat mounting plate 12 close to the aisle floor 11, and four transition connecting plates 13 are respectively disposed on each section of the underframe, although the number of the seat mounting plates 12 and the number of the transition connecting plates 13 are not limited thereto.
In this embodiment, on the premise of avoiding interference with the bogie, in order to improve the utilization space of the underframe, the middle structure 1 further includes a step-shaped pedal 14 for being disposed above the motor for passengers to tread, the seat mounting plates 12 are symmetrically and fixedly disposed at both sides of the step-shaped pedal 14, and the seat mounting plates 12 have a step-shaped structure for being disposed above the bogie, that is, the seat mounting plates 12 have a plurality of step surfaces 121 which are vertically staggered, so that a structure shaped like a Chinese character ji is formed between the seat mounting plates 12 and the step-shaped pedal 14.
Preferably, the seat mounting plate 12 has two step surfaces 121 with a certain height difference in the vertical direction, and the passenger can reach the seat arranged on the step surface 121 with a higher height by using the stepped pedal 14; correspondingly, a tread bottom plate 122 extending along the horizontal plane for passengers to step on is further disposed at the bottom of the step surface 121 with a lower height, and one side of the tread bottom plate 122 close to the aisle bottom plate 11 is abutted to the transition connection plate 13. Specifically, each step surface 121 may be installed with two seats, that is, sixteen seats may be disposed on both sides of the aisle floor 11. Of course, the number of the step surfaces 121 and the number of the seats are not particularly limited herein.
In addition, the middle structure 1 further includes a supporting side plate 15 vertically connected between the aisle bottom plate 11 and the seat mounting plate 12 and between the aisle bottom plate 11 and the stepped pedal 14, for connecting the seat mounting plate 12 and the stepped pedal 14 with the aisle bottom plate 11, respectively, so as to support the seat mounting plate 12 and the stepped pedal 14 in the vertical direction, prevent the deformation of the two, and facilitate to improve the strength of the seat mounting plate 12 and the stepped pedal 14.
In this embodiment, the aisle floor 11 is preferably a metal thin plate, and in order to increase the strength of the aisle floor 11, a plurality of aisle reinforcing ribs 111 extending along the length direction of the aisle floor 11 are provided at the bottom of the aisle floor 11, so as to increase the strength of the aisle floor 11, which is beneficial for the aisle floor 11 to maintain a full-flat and slope-free state. It should be noted that, in order to ensure that no interference occurs with the bogie under various working conditions, the thickness of the aisle reinforcing rib 111 may be increased as much as possible. Specifically, the bottom of the aisle floor 11 is provided with three parallel aisle reinforcing plates with equal distance between two adjacent aisle reinforcing plates, and the cross section of the aisle reinforcing plate is preferably a U-shaped cross section protruding towards the lower part of the aisle floor 11, but is not limited to this.
In order to further improve the strength of the aisle bottom plate 11, aisle side plates 16 are vertically arranged on two sides of the bottom of the aisle bottom plate 11. The two aisle side plates 16 are respectively welded at the bottom of the aisle bottom plate 11, and two ends of the two aisle side plates respectively abut against the transition connecting plate 13, so that the aisle bottom plate 11 is effectively prevented from bending deformation in the process of transmitting longitudinal force along the length direction of the aisle bottom plate 11, and the aisle bottom plate 11 is further kept in a full-flat slope-free state. Preferably, both of the two passage side plates 16 are made of a rear metal plate, although not limited thereto.
Referring to fig. 6, fig. 6 is a schematic structural diagram of the front end frame in fig. 1.
In this embodiment, the front end frame 2 includes a front end beam 21 and a connection frame 22, a top surface of the front end beam 21 extends along a horizontal plane, and the top surface of the front end beam 21 is disposed lower than a top surface of the aisle floor 11 so that the top surface of the interior floor is flush with the top surface of the aisle floor 11 after the interior floor is installed, and the front end beam 21 is also used for connecting a cab. The interior floor is preferably a flexible flat sheet made of composite material to increase friction and facilitate stable standing of passengers.
The connecting frame 22 is connected between the middle structure 1 and the front end beam 21, and the top surface of the connecting frame 22 is flush with the top surface of the front end beam 21, so that the interior floor is laid flat. In this embodiment, the connecting frame 22 is preferably a square frame constructed of a plurality of alternating longitudinal and transverse beams for supporting a passenger to stand. Of course, the structure of the connection frame 22 is not limited thereto.
Preferably, the front end beam 21 includes a front ceiling plate 211 and a front bottom plate 212 arranged in parallel in the vertical direction, wherein the top surface of the front ceiling plate 211 is flush with the top surface of the connection frame 22. In order to reduce the weight of the front end beam 21 and to save material, the front roof plate 211 and the front floor plate 212 are provided with a plurality of lightening holes 4 which are communicated with each other. Preferably, the lightening holes 4 have a trapezoidal cross section, though not limited thereto. Further, the front end beam 21 further includes a front reinforcing plate 213 vertically attached between the front top cover plate 211 and the front bottom cover plate 212. It should be noted that, in order to facilitate welding the front reinforcing plate 213 between the front top cover plate 211 and the front bottom cover plate 212, the front reinforcing plate 213 is disposed between two adjacent lightening holes 4, so that the welding equipment penetrates the lightening holes 4 to weld the front reinforcing plate 213, and further, the front reinforcing plate 213 is disposed along the oblique side parallel to the trapezoidal lightening holes 4 to sufficiently transmit force, so that the front end beam 21 is uniformly stressed, the front end beam 21 is effectively prevented from deforming, and the implementation of full-flat without slope is facilitated. It can be seen that the lightening holes 4 on the front top cover plate 211 and the front bottom cover plate 212 can also be used for conveniently fixing the front reinforcing plate 213. In addition, in order to further reduce the weight of the front end beam 21, the front reinforcement plate 213 is also provided with lightening holes 4 penetrating in the thickness direction thereof.
Preferably, the front end beam 21 further includes a front end plate 214 for connecting with the cab, and the front end plate 214 is vertically connected between the front top cover plate 211 and the rear top cover plate 31 and is disposed vertically to the front reinforcing plate 213. In order to improve the flatness between the front end beam 21 and the cab, the front end plate 214 is provided with a plurality of mounting waist holes 2141, and the plurality of mounting waist holes 2141 are vertically arranged with the connecting waist holes of the cab, so that the manufacturing error, the mounting error and the like between the front end beam 21 and the cab are compensated vertically and horizontally, and the fully flat non-slope cab structure is further facilitated.
It should be noted that, in order to ensure that the front end beam 21 can meet the predetermined flatness requirement when being connected to the cab, the front top cover plate 211, the front bottom cover plate 212, the front reinforcing plate 213, and the front end plate 214 are welded in combination and then the front end plate 214 is machined when the front end beam 21 is machined.
Referring to fig. 7, fig. 7 is a schematic structural diagram of the rear frame in fig. 1.
In this particular embodiment, the rear end frame 3 includes a rear top cover plate 31, a rear bottom cover plate 32, and a rear end plate 33. The rear top cover plate 31 and the rear bottom cover plate 32 are arranged in parallel. The top surface of the rear roof panel 31 extends in the horizontal direction, and the top surface of the rear roof panel 31 is disposed vertically lower than the top surface of the aisle floor 11. The rear end plate 33 is vertically connected between the rear top cover plate 31 and the rear bottom cover plate 32 for connecting other chassis. The rear top cover plate 31 and the rear bottom cover plate 32 are both provided with a plurality of lightening holes 4 which are communicated with each other, the functions of the lightening holes 4 are the same as the functions of the lightening holes 4 on the supports of the front top cover plate 211 and the front bottom cover plate 212, and the details are not repeated. Correspondingly, the rear end frame 3 further comprises a rear reinforcing plate 34 vertically fixedly connected between the rear top cover plate 31 and the rear bottom cover plate 32, the rear reinforcing plate 34 is located between the lightening holes 4 of the rear top cover plate 31 and the rear bottom cover plate 32, namely the rear reinforcing plate 34 is arranged along the inclined sides of the lightening holes 4 of the rear top cover plate 31 and the rear bottom cover plate 32, so that the rear end frame 3 is stressed uniformly, the front end beam 21 is prevented from deforming effectively, and the full-flat slope-free structure is further realized.
In addition, the rear end plate 33 is provided with a plurality of hinge holes, preferably, the rear end plate 33 is provided with two rows of hinge holes, in order to enable the top surface of the rear end frame 3 to be flush with the top surface of the aisle bottom plate 11, the height of the rear end plate 33 can be adjusted according to actual conditions, and then the hole spacing of the hinge holes is properly adjusted, so that the hinge holes are uniformly distributed on the rear end plate 33, the rear end plate 33 is enabled to be uniformly stressed, and the service life of the rear end plate 33 is prolonged. Grooves are formed between the rear end plate 33 and the rear top cover plate 31 and between the rear end plate 33 and the rear bottom cover plate 32 to prevent stress concentration between the rear end plate 33 and the rear top cover plate 31 and between the rear end plate 33 and the rear bottom cover plate 32, and to ensure that the rear end plate 33 is fully connected with the rear top cover plate 31 and the rear bottom cover plate 32. The rear end plate 33 is provided with a damper mount 35 for mounting a damper so as to reduce the volume of the rear end frame 3 and reduce the occupied space.
This application still includes and is linked firmly boundary beam 5 with front end roof beam 21, the same side of middle part structure 1 and rear end frame 3 mutually, preferably, boundary beam 5's cross section is the C type, boundary beam 5 is through hiding front end roof beam 21 on the one hand, the side of middle part structure 1 and rear end frame 3 is followed and is promoted the aesthetic property, on the other hand boundary beam 5 can also strengthen front end roof beam 21, the joint strength between middle part structure 1 and the rear end frame 3, prevent adjacent two and warp completely, be favorable to guaranteeing front end roof beam 21, the plane degree between middle part structure 1 and the rear end frame 3, be convenient for realize flat no slope entirely.
The side of the middle structure 1 far away from the side beam 5 is provided with a connecting side beam 17, and the connecting side beam 17 is preferably a U-shaped beam so as to improve the rigidity of the joint of the seat mounting plate 12 and the side wall.
In order to facilitate lifting of the integral underframe, the invention further comprises lifting lugs 6 arranged on the aisle side plates 16 and the transition connecting plates 13 so as to facilitate transferring of the integral underframe through lifting equipment. The lifting lug 6 is preferably a circular through hole, although not limited thereto.
The invention also provides a 100% low-floor rail vehicle, which comprises a vehicle body and the chassis of the 100% low-floor rail vehicle. Because the passenger room standing area of the underframe is completely flat and has no slope, the passenger room standing area can be fully utilized, and the comfort of the passenger room standing area is improved.
The underframe of the 100% low-floor rail vehicle and the 100% low-floor rail vehicle provided by the invention are described in detail, and a specific example is applied in the description to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (6)

1. A 100% low floor rail vehicle undercarriage, comprising:
the middle structure (1) is provided with an aisle bottom plate (11) extending along the horizontal plane for passengers to stand on, and two sides of the bottom of the aisle bottom plate (11) are vertically provided with aisle side plates (16);
the top surfaces of the front end frame (2) and the rear end frame (3) extend along the horizontal plane and are fixedly arranged at the front end and the rear end of the middle structure (1) respectively, and the top surfaces of the front end frame (2) and the rear end frame (3) are provided with built-in floors, the top surfaces of which are flush with the top surface of the aisle bottom plate (11) so as to be used for passengers to stand;
the central structure (1) comprises:
a seat mounting plate (12) which is fixedly arranged on the side surface of the aisle bottom plate (11), protrudes upwards along the vertical direction relative to the aisle bottom plate (11) and is used for supporting a seat;
the two sides of the transition connecting plate are respectively abutted to the aisle bottom plate (11) and the seat mounting plate (12), the top of the transition connecting plate vertically extends to be abutted to the bottom of the seat mounting plate (12), and the transition connecting plate (13) is used for enabling the bottom of the transition connecting plate to penetrate through the aisle bottom plate (11) to avoid a transverse shock absorber and reduce stress between the aisle bottom plate (11) and the seat mounting plate (12);
the transition connecting plate (13) comprises a supporting surface (131) which has an optimal curve shape and is matched with a curved groove arranged at the bottom of the seat mounting plate (12), and a connecting surface (132) which is respectively abutted against the aisle bottom plate (11) and the seat mounting plate (12) and is vertical to the supporting surface (131);
the front end frame (2) comprises:
the top surface of the front end beam (21) extends along the horizontal plane, is lower than the top surface of the aisle bottom plate (11) and is used for being connected with the cab;
a connecting frame (22) having a top surface flush with the top surface of the front end beam (21) and connected between the middle structure (1) and the front end beam (21);
the front end plate (214) is used for being connected with the cab, the front end plate (214) is provided with a plurality of mounting waist holes (2141) which are used for being vertical to connecting waist holes of the cab so as to compensate the height difference between the front end beam (21) and the cab;
the rear end frame (3) comprises:
a rear top cover plate (31) with the top surface extending along the horizontal direction and the top surface lower than the top surface of the aisle bottom plate (11);
a rear bottom cover plate (32) arranged in parallel to the rear top cover plate (31) in the vertical direction;
a rear end plate (33) vertically and fixedly connected between the rear top cover plate (31) and the rear bottom cover plate (32), and grooves are arranged between the rear end plate (33) and the rear top cover plate (31) and between the rear end plate (33) and the rear bottom cover plate (32).
2. The chassis of 100% low-floor rail vehicle according to claim 1, wherein the middle structure (1) further comprises a stepped pedal (14) for stepping on by passengers and arranged above the motor, the seat mounting plates (12) are symmetrically and fixedly arranged at two sides of the stepped pedal (14), and the seat mounting plates (12) are provided with stepped structures for being arranged above the bogie.
3. The 100% low floor rail vehicle undercarriage of claim 1 wherein the bottom of the aisle floor (11) is provided with a plurality of aisle stiffeners (111) extending lengthwise for added strength.
4. The 100% low floor rail vehicle undercarriage of claim 3 wherein the front end beam (21) comprises:
a front top cover plate (211) and a front bottom cover plate (212) which are arranged in parallel along the vertical direction; the front top cover plate (211) and the front bottom cover plate (212) are provided with a plurality of weight reducing holes (4) which are communicated with each other;
the front reinforcing plate (213) is arranged between two adjacent lightening holes (4), is vertically fixedly connected between the front top cover plate (211) and the front bottom cover plate (212) and is used for supporting the front top cover plate (211) and the front bottom cover plate (212), and the front reinforcing plate (213) is provided with the lightening holes (4).
5. The 100% low floor rail vehicle underframe of claim 4, wherein the rear roof cover plate (31) and the rear floor cover plate (32) are provided with a plurality of weight-reducing holes (4) which are communicated with each other, and the rear end frame (3) further comprises:
and the rear reinforcing plate (34) is positioned between two adjacent lightening holes (4), is vertically fixedly connected between the rear top cover plate (31) and the rear bottom cover plate (32) and is used for supporting the rear top cover plate (31) and the rear bottom cover plate (32), and the rear reinforcing plate (34) is provided with the lightening holes (4).
6. A100% low floor rail vehicle comprising a vehicle body comprising a 100% low floor rail vehicle undercarriage according to any one of claims 1 to 5.
CN201811325158.0A 2018-11-08 2018-11-08 100% low-floor rail vehicle underframe and 100% low-floor rail vehicle Active CN109178009B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811325158.0A CN109178009B (en) 2018-11-08 2018-11-08 100% low-floor rail vehicle underframe and 100% low-floor rail vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811325158.0A CN109178009B (en) 2018-11-08 2018-11-08 100% low-floor rail vehicle underframe and 100% low-floor rail vehicle

Publications (2)

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CN110481584B (en) * 2019-09-11 2020-08-21 中车株洲电力机车有限公司 Low-floor vehicle body underframe structure and tramcar
CN111252102B (en) * 2020-03-17 2021-04-20 中铁轨道交通装备有限公司 Low-floor tramcar underframe structure
DE102020113308A1 (en) * 2020-05-15 2021-11-18 Elbe Flugzeugwerke Gmbh Integral floor arrangement for rail vehicles
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CZ298620B6 (en) * 2002-08-28 2007-11-28 ŠKODA TRANSPORTATION s.r.o. Forming floor portion with arrangement of seats above bogie of partially low-floor streetcars
CN202703714U (en) * 2012-06-29 2013-01-30 郑州宇通客车股份有限公司 Low-floor full-load bus body
CN203920759U (en) * 2014-06-27 2014-11-05 成都市新筑路桥机械股份有限公司 A kind of 100% modern city tramway train vehicle body bottom frame
CN204956492U (en) * 2015-09-28 2016-01-13 南车株洲电力机车有限公司 Built -in ground of low -floor EMUs plate structure
CN105416329B (en) * 2015-12-08 2017-10-03 南车株洲电力机车有限公司 A kind of low-floor rail vehicle Undercarriage structure
CN105460084B (en) * 2016-01-05 2017-11-28 中车株洲电力机车有限公司 A kind of low-floor vehicle body bottom frame central structure
CN206615223U (en) * 2016-12-02 2017-11-07 中车长春轨道客车股份有限公司 A kind of rail vehicle head body frame integral structure
CN107738658B (en) * 2017-09-27 2019-04-16 中车青岛四方机车车辆股份有限公司 A kind of 100% low-floor tramcar vehicle body bottom frame

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