CN112758122A - Bogie frame and have its bogie assembly and straddle type monorail vehicle - Google Patents

Bogie frame and have its bogie assembly and straddle type monorail vehicle Download PDF

Info

Publication number
CN112758122A
CN112758122A CN201911066616.8A CN201911066616A CN112758122A CN 112758122 A CN112758122 A CN 112758122A CN 201911066616 A CN201911066616 A CN 201911066616A CN 112758122 A CN112758122 A CN 112758122A
Authority
CN
China
Prior art keywords
longitudinal beam
plate
side longitudinal
electric assembly
cross beam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201911066616.8A
Other languages
Chinese (zh)
Other versions
CN112758122B (en
Inventor
丁利民
钟广辉
奉起华
李思
熊辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Co Ltd
Original Assignee
BYD Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Priority to CN201911066616.8A priority Critical patent/CN112758122B/en
Publication of CN112758122A publication Critical patent/CN112758122A/en
Application granted granted Critical
Publication of CN112758122B publication Critical patent/CN112758122B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B61F5/00Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/50Other details
    • B61F5/52Bogie frames
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61BRAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00Other railway systems
    • B61B13/04Monorail systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

本发明是一种转向架构架及具有其的转向架总成和跨座式单轨车辆,所述转向架构架包括:梁组件,所述梁组件包括左侧纵梁、右侧纵梁、前侧横梁和后侧横梁,所述左侧纵梁的上表面和所述右侧纵梁的上表面均设置有悬挂安装座;电动总成安装座,所述电动总成安装座形成有电动总成安装孔;其中,所述电动总成安装孔与所述悬挂安装座在横向上相对设置,且所述悬挂安装部的上表面位于所述电动总成安装孔的轴线和所述电动总成安装孔的最低处之间。本发明既实现车厢的低地板化又消除列车车厢内出现的凸起区域,提高车厢的运载能力;增大了悬挂安装座与电动总成安装座之间的距离,避免悬挂装置与电动总成发生干涉。

Figure 201911066616

The present invention is a bogie frame, a bogie assembly having the same, and a straddle-type monorail vehicle. The bogie frame includes a beam assembly, and the beam assembly includes a left side rail, a right side rail, and a front side rail. The cross beam and the rear side cross beam, the upper surface of the left longitudinal beam and the upper surface of the right longitudinal beam are provided with suspension mounting seats; the electric assembly mounting seat, the electric assembly mounting seat is formed with an electric assembly A mounting hole; wherein, the electric assembly mounting hole and the suspension mounting seat are laterally opposite to each other, and the upper surface of the suspension mounting portion is located at the axis of the electric assembly mounting hole and the electric assembly installation between the lowest points of the holes. The invention not only realizes the low floor of the carriage, but also eliminates the raised area in the train carriage, improves the carrying capacity of the carriage, increases the distance between the suspension mounting seat and the electric assembly mounting seat, and avoids the suspension device and the electric assembly. interference occurs.

Figure 201911066616

Description

Bogie frame and have its bogie assembly and straddle type monorail vehicle
Technical Field
The invention belongs to the technical field of railway vehicles, and particularly relates to a bogie frame, a bogie assembly with the same and a straddle type monorail vehicle
Background
Along with the low-floor of the existing railway vehicle, the distance from a train carriage to the ground is reduced, however, a large protruding area appears in the carriage, the passenger space in the carriage is greatly occupied, the carrying capacity of the train is reduced, and the permeability of the carriage is also influenced.
Disclosure of Invention
In view of the above-mentioned shortcomings or drawbacks of the prior art, it is desirable to provide a bogie frame, and a bogie assembly and a straddle-type monorail vehicle having the same, which solve the problems set forth in the background art.
In a first aspect, the invention provides a truck frame comprising:
the beam assembly comprises a left side longitudinal beam, a right side longitudinal beam, a front side cross beam and a rear side cross beam, the front side cross beam and the rear side cross beam are both positioned between the left side longitudinal beam and the right side longitudinal beam, two ends of the front side cross beam are respectively connected with the left side longitudinal beam and the right side longitudinal beam, and two ends of the rear side cross beam are respectively connected with the left side longitudinal beam and the right side longitudinal beam; the upper surface of the left side longitudinal beam and the upper surface of the right side longitudinal beam are both provided with a suspension mounting seat;
an electric assembly mount disposed between the front cross member and the rear cross member; the electric assembly mounting base is respectively arranged at intervals with the left side longitudinal beam and the right side longitudinal beam, and the transverse spacing distance between the electric assembly mounting base and the left side longitudinal beam is greater than that between the electric assembly mounting base and the right side longitudinal beam; the electric assembly mounting seat is provided with an electric assembly mounting hole;
wherein, the electric assembly mounting hole with hang the mount pad and set up in the horizontal relative, just the upper surface of hanging the installation department is located the axis of electric assembly mounting hole with between the lower of electric assembly mounting hole.
The bogie frame provided by the embodiment of the first aspect of the invention can realize low floor of a train carriage, reduce a raised area in the train carriage and greatly increase the passenger space of the carriage, thereby improving the carrying capacity of the carriage and improving the permeability of the carriage.
In some embodiments, the height of the upper surfaces of the front and rear cross members is greater than the height of the upper surfaces of the left and right cross members.
In some embodiments, four connecting beams are also included; the first connecting beam is connected with the front side cross beam and the left side longitudinal beam, the second connecting beam is connected with the front side cross beam and the right side longitudinal beam, the third connecting beam is connected with the rear side cross beam and the left side longitudinal beam, and the fourth connecting beam is connected with the rear side cross beam and the right side longitudinal beam;
the upper surface of the connecting beam is obliquely arranged; the higher one end of tie beam with front side crossbeam or the rear side crossbeam is connected, the lower one end of tie beam with the left side longeron or the right side longeron is connected.
In some embodiments, the sealing device comprises an upper sealing piece, a middle supporting frame and a lower sealing piece which are sequentially connected from top to bottom;
the upper sealing piece comprises a left side longitudinal beam cover plate, a right side longitudinal beam cover plate, a front side cross beam cover plate and a rear side cross beam cover plate; the middle support frame comprises a left support plate, a right support plate, a front support plate and a rear support plate; the lower sealing piece comprises a left side longitudinal beam bottom plate, a right side longitudinal beam bottom plate, a front side cross beam bottom plate and a rear side cross beam bottom plate;
the left side longitudinal beam cover plate, the left support plate and the left side longitudinal beam bottom plate are connected to form a left side longitudinal beam;
the right side longitudinal beam cover plate, the right support plate and the right side longitudinal beam bottom plate are connected to form the right side longitudinal beam;
the front side cross beam cover plate, the front support plate and the front side cross beam bottom plate are connected to form the front side cross beam;
the rear cross beam cover plate, the rear supporting plate and the rear cross beam bottom plate are connected to form the rear cross beam.
In some embodiments, the suspension mount is disposed in a middle portion of the left or right side rail.
In some embodiments, an additional plenum is further included, the additional plenum being located below the suspension mount and at least partially inside the left or right side rail.
In some embodiments, the beam assembly further comprises a third longitudinal beam disposed between the front and rear cross beams;
the left side longitudinal beam, the electric assembly mounting seat, the third longitudinal beam and the right side longitudinal beam are arranged at intervals in the transverse direction;
the electric assembly mounting seat, the third longitudinal beam, the front side cross beam and the rear side cross beam define a walking wheel mounting groove.
In some embodiments, the vehicle further comprises a left stabilizing wheel support seat and a right stabilizing wheel support seat, wherein the lower end of the left stabilizing wheel support seat and the lower end of the right stabilizing wheel support seat are both suitable for mounting stabilizing wheels;
the left stabilizing wheel supporting seat is arranged below the electric assembly mounting seat, and the right stabilizing wheel supporting seat is arranged below the third longitudinal beam.
In some embodiments, the left stabilizing wheel support base is a hollow structure,
the left stabilizing wheel supporting seat comprises a left inner sealing plate, two bending pieces and a left outer sealing plate, the left inner sealing plate and the left outer sealing plate are arranged oppositely, the bending pieces are arranged between the left inner sealing plate and the left outer sealing plate and connected with the left inner sealing plate and the left outer sealing plate.
In some embodiments, the right stabilizing wheel support base is a hollow structure,
the right stabilizing wheel supporting seat comprises a right inner sealing plate, two flat plates and a right outer sealing plate, the right inner sealing plate and the right outer sealing plate are oppositely arranged, the two flat plates are arranged between the right inner sealing plate and the right outer sealing plate and are connected with the right inner sealing plate and the right outer sealing plate.
In some embodiments, the lower ends of the left and right stabilizing wheel supports are provided with vent holes.
In some embodiments, four guide wheel mounts are also included; the guide wheel mounting seats are arranged on the lower portions of the two ends of the front side cross beam, and the other two guide wheel mounting seats are arranged on the lower portions of the two ends of the rear side cross beam.
In a second aspect, the invention provides a bogie assembly comprising an electric assembly, a suspension device, running wheels and the bogie frame of the first aspect,
the electric assembly is arranged on an electric assembly mounting seat of the bogie frame;
the suspension device is mounted on a suspension mounting seat of the bogie frame;
the running wheels are rotatably mounted to the electric assembly.
The bogie assembly provided by the embodiment of the second aspect of the invention can realize low floor of the carriage, reduce the raised area in the train carriage and greatly increase the passenger space of the carriage, thereby improving the carrying capacity of the carriage and improving the permeability of the carriage.
In a third aspect, the invention provides a technical scheme that the straddle type monorail vehicle comprises a wheel package, a floor and the bogie assembly of the second aspect,
the wheel package covers the walking wheels and the electric assembly;
the horizontal extension plane of the floor is higher than the rotation axis of the running wheels and lower than the highest part of the running wheels.
The straddle type monorail vehicle provided by the embodiment of the third aspect of the invention can realize low floor of the carriage, reduce the raised area in the train carriage and greatly increase the passenger space of the carriage, thereby improving the carrying capacity of the carriage and improving the permeability of the carriage.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of the truck frame of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a schematic structural view of a beam assembly of the present invention;
FIG. 5 is a schematic view of the upper seal configuration of the beam assembly of the present invention;
FIG. 6 is a schematic view of a center support frame structure of the beam assembly of the present invention;
FIG. 7 is a schematic view of the lower seal configuration of the beam assembly of the present invention;
FIG. 8 is an exploded view of the left stabilizer wheel support base of the present invention;
FIG. 9 is a schematic view of the left stabilizer wheel support of the present invention;
FIG. 10 is an assembly welding view of the electric assembly mount and left stabilizer wheel support base of the present invention;
FIG. 11 is an exploded view of the right stabilizer wheel support base of the present invention;
FIG. 12 is a schematic view of the right stabilizer wheel support of the present invention;
FIG. 13 is a schematic structural view of a motorized assembly mount of the present invention;
FIG. 14 is an exploded view of FIG. 13;
FIG. 15 is an isometric view of the truck assembly of the present invention;
FIG. 16 is a front view of the truck assembly of the present invention;
fig. 17 is a left side view of the truck assembly of the present invention.
In fig. 1-17, 10, beam assembly, 101, left side longitudinal beam, 102, right side longitudinal beam, 103, front side transverse beam, 104, rear side transverse beam, 105, suspension mount, 106, first connecting beam, 107, second connecting beam, 108, third connecting beam, 109, fourth connecting beam, 110, third longitudinal beam, 111, running wheel mounting groove;
11. an upper seal, 12, a middle support frame, 13, a lower seal, 1001, a left side longitudinal beam cover plate, 1002, a right side longitudinal beam cover plate, 1003, a front side cross beam cover plate, 1004, a rear side cross beam cover plate, 1005, a third longitudinal beam cover plate, 1006, a left side longitudinal beam base plate, 1007, a right side longitudinal beam base plate, 1008, a front side cross beam base plate, 1009, a rear side cross beam base plate, 1010, a third longitudinal beam base plate, 1011, a left support plate, 1012, a right support plate, 1013, a front support plate, 1014, a rear support plate, 1015, a third support plate, 1016, and an additional air chamber;
20. an electric assembly mounting seat 201, an electric assembly mounting hole 21, a first back plate 211, a first electric assembly mounting hole 22, a second back plate 221, a second electric assembly mounting hole 222, a first fixing hole 223, a second fixing hole 23, an inner ring plate 24, an upper ring plate 25, a lower ring plate 26, a brake mounting seat 27, a brake mounting plate 271 and a third fixing hole;
30. a left support frame 31, a left inner sealing plate 32, a left outer sealing plate 33 and a bending piece;
40. a right support frame 41, a right inner sealing plate 42, a right outer sealing plate 43 and a flat plate;
50. a stabilizing wheel mounting seat 51 and an exhaust hole;
60. a guide wheel mounting seat;
100. bogie frame, 200, electric assembly, 300, suspension device, 400, running wheels, 500, stabilizing wheels, 600, guide wheels, 700, wheel package, 800, floor.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "vertical", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Wherein, the direction of the x axis is transverse, the positive direction of the x axis is right, and the negative direction of the x axis is left; the y-axis direction is longitudinal, the positive y-axis direction is front, and the negative y-axis direction is rear; the direction of the z axis is vertical or vertical, the positive direction of the z axis is upward, and the negative direction of the z axis is downward. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, a bogie frame 100 includes: a beam assembly 10 and a motorized assembly mount 20.
The beam assembly 10 includes a left side longitudinal beam 101, a right side longitudinal beam 102, a front side cross beam 103, and a rear side cross beam 104. The front cross beam 103 and the rear cross beam 104 are both positioned between the left side longitudinal beam 101 and the right side longitudinal beam 102, two ends of the front cross beam 103 are respectively connected with the left side longitudinal beam 101 and the right side longitudinal beam 102, and two ends of the rear cross beam 104 are respectively connected with the left side longitudinal beam 101 and the right side longitudinal beam 102; the upper surface of the left side member 101 and the upper surface of the right side member 102 are each provided with a suspension mount 105.
The electric assembly mounting seat 20 is arranged between the front cross beam 103 and the rear cross beam 104; electric assembly mount pad 20 sets up with left side longeron 101 and right side longeron 102 interval respectively, and electric assembly mount pad 20 is greater than electric assembly mount pad 20 and the horizontal spacing distance of right side longeron 102 with the horizontal spacing distance of left side longeron 101. The electric assembly mounting base 20 is formed with an electric assembly mounting hole 201;
wherein, electric motor assembly mounting hole 201 and suspension mount 105 set up in horizontal opposition, and the upper surface of suspension mount 105 is located between the axis of electric motor assembly mounting hole 201 and the lowest of electric motor assembly mounting hole 201.
Referring to fig. 15-17, the electric assembly mounting base 20 is used for mounting the electric assembly 200 to provide operation power for the bogie frame 100; the suspension mounts 105 are used to mount the suspension units 300, and the suspension units 300 are used to support the train cars.
Running wheels 400 are mounted on the electric assembly 200 and are disposed in a space defined by the left side member 101, the right side member 102, the front side cross member 103, and the rear side cross member 104. The upper surface through setting up suspension mount 105 is higher than the lower extreme of electronic assembly mounting hole 201, and suspension mount 105's upper surface is less than electronic assembly mounting hole 201's axis, make can set the highest point that is less than walking wheel 400 with linkage 300, and be higher than the rotation axis of walking wheel 400, thereby when making the low-floor ization of guaranteeing train carriage, the protruding region that appears in the train carriage again can reduce greatly, the focus of train has both been reduced, the stability of traveling of train has been improved, the carrying capacity in carriage has still been improved.
Referring to fig. 1-4, in some embodiments of the invention, the upper surfaces of front cross member 103 and rear cross member 104 are flush, the upper surfaces of left side longitudinal member 101 and right side longitudinal member 102 are flush, and the upper surfaces of front cross member 103 and rear cross member 104 are higher than the upper surfaces of left side longitudinal member 101 and right side longitudinal member 102, such that the upper surface of suspension mount 105 is conveniently located between the axis of powertrain mounting hole 201 and the lowest portion of powertrain mounting hole 201.
Referring to fig. 4, in some embodiments of the invention, the beam assembly 10 further includes four connecting beams: a first connecting beam 106, a second connecting beam 107, a third connecting beam 108 and a fourth connecting beam 109. The first connection beam 106, the second connection beam 107, the third connection beam 108, and the fourth connection beam 109 may be provided with the same-shaped structure, and upper surfaces thereof are all inclined surfaces.
The higher end of the first connecting beam 106 is connected with the front side cross beam 103, and the lower end is connected with the left side longitudinal beam 101; the higher end of the second connecting beam 107 is connected with the front side cross beam 103, and the lower end is connected with the right side longitudinal beam 102; the higher end of the third connecting beam 108 is connected with the rear cross beam 104, and the lower end is connected with the left side longitudinal beam 101; the fourth connecting beam 109 has a higher end connected to the rear cross member 104 and a lower end connected to the right side member 102.
Through the setting of a plurality of tie-beams, increase the interval between left side longeron 101 and the right side longeron 102, avoid installing in the electronic assembly 200 of electronic assembly mount pad 20 and installing in the linkage 300 of hanging mount pad 105 and take place to interfere, the upper surface slope of tie-beam sets up simultaneously for the atress of being connected between crossbeam and the longeron is more stable.
Referring to fig. 5 to 7, in some embodiments of the present invention, the beam assembly 10 includes an upper seal 11, a middle support 12, and a lower seal 13 connected in sequence from top to bottom. In some embodiments, the upper seal 11, the middle support frame 12 and the lower seal 13 are welded in sequence.
The upper seal 11 comprises a left side longitudinal beam cover 1001, a right side longitudinal beam cover 1002, a front side cross beam cover 1003 and a rear side cross beam cover 1004; the middle support frame 12 comprises a left support plate 1011, a right support plate 1012, a front support plate 1013, and a rear support plate 1014; the lower seal 13 includes a left side rail bottom plate 1006, a right side rail bottom plate 1007, a front side cross beam bottom plate 1008, and a rear side cross beam bottom plate 1009.
The left side member cover 1001, the left side member bottom plate 1006, and the left support plate 1011 are connected to form the left side member 101. The right side member cover plate 1002, the right side member bottom plate 1007, and the right support plate 1012 are connected to form the right side member 102. The front side rail cover 1003, the front side rail base plate 1008, and the front support plate 1013 are connected to become the front side rail 103. Rear side beam cover 1004, rear side beam base plate 1009 and rear support plate 1014 are connected to form rear side beam 104. The structure of the left side longitudinal beam 101, the right side longitudinal beam 102, the front side cross beam 103 and the rear side cross beam 104 improves the structural strength of the beam assembly 10 and reduces the overall weight of the beam assembly 10.
In some embodiments, there are two each of the left support plate 1011, the right support plate 1012, the front support plate 1013, and the rear support plate 1014, as shown in fig. 6. The front support plate 1013 and the rear support plate 1014 extend in the X direction, and the left support plate 1011 and the right support plate 1012 extend in the Y direction. The left support plate 1011, the right support plate 1012, the front support plate 1013 and the rear support plate 1014 are sequentially connected end to form a square structure. Running wheels 400 are arranged in the square structure.
Referring to fig. 4, in some embodiments of the invention, one suspension mount 105 is disposed in the middle of the left side rail 101 and another suspension mount 105 is disposed in the middle of the right side rail 102.
The suspension mounting seat 105 is reasonable in arrangement, so that the left longitudinal beam 101 and the right longitudinal beam 102 are better stressed, and the left longitudinal beam 101 and the right longitudinal beam 102 are prevented from generating torsional deformation.
Referring to FIG. 6, in some embodiments of the invention, the suspension 300 is an air suspension and the beam assembly 10 further includes an additional plenum 1016. An additional plenum 1016 is disposed below suspension mount 105, and additional plenum 1016 is at least partially located inside left side rail 101 or inside right side rail 102.
An additional air chamber 1016 is connected to the main air chamber of the air suspension unit to adjust the height of the air suspension unit during the running of the train, thereby improving the running stability of the train.
The additional air chamber 1016 further improves the stiffness and damping characteristics of the suspension 300, effectively improves ride comfort, ride comfort and handling stability of the vehicle, and also reduces damage to the track from the vehicle.
Referring to fig. 4, in some embodiments of the invention, the beam assembly 10 further includes a third stringer 110.
The third longitudinal beam 110 is arranged between the front lateral beam 103 and the rear lateral beam 104, and the left longitudinal beam 101, the electric assembly mounting seat 20, the third longitudinal beam 110 and the right longitudinal beam 102 are arranged at intervals in the transverse direction. Wherein the third longitudinal beam 110 is disposed adjacent to the right longitudinal beam 102.
Electric assembly mount 20, third longitudinal member 110, front cross member 103, and rear cross member 104 define a road wheel mounting slot 111.
By arranging the third longitudinal beam 110, the connection strength between the front side cross beam 103 and the rear side cross beam 104 is further enhanced, so that the beam assembly 10 can better meet the requirements of supporting the suspension mounting seat 105 and the electric assembly mounting seat 20.
Referring to fig. 5, the upper seal 11 further includes a third stringer cover 1005, and the third stringer cover 1005 is disposed between the front cross member cover 1003 and the rear cross member cover 1004. Left side longeron apron 1001, third longeron apron 1005 and right side longeron apron 1002 set up in proper order at an interval, and third longeron apron 1005 is close to right side longeron apron 1002 and sets up.
Referring to fig. 7, the bottom seal 13 further includes a third stringer base panel 1010, the third stringer base panel 1010 being disposed between the front side rail base panel 1008 and the rear side rail base panel 1009. The left longitudinal beam bottom plate 1006, the third longitudinal beam bottom plate 1010 and the right longitudinal beam bottom plate 1007 are sequentially arranged at intervals, and the third longitudinal beam bottom plate 1010 is arranged close to the right longitudinal beam bottom plate 1007.
Referring to fig. 6, the middle support frame 12 further includes a third support plate 1015, the third support plate 1015 being disposed between the front support plate 1013 and the rear support plate 1014. The left support plate 1011, the third support plate 1015 and the right support plate 1012 are arranged at intervals in sequence, and the third support plate 1015 is arranged close to the right support plate 1012.
The third stringer 110 is composed of a third stringer cover 1005, a third stringer base 1010, and a third support plate 1015. This configuration of the third longitudinal beam 110 both increases the strength of the beam assembly 10 and reduces the overall weight of the beam assembly 10.
Referring to fig. 1-3, in some embodiments of the present invention, the truck frame 100 further includes left and right stabilizer wheel supports. The lower ends of the left and right stabilizer wheel supports are adapted to receive stabilizer wheels 500.
The left stabilizer wheel support seat is disposed below the electric assembly mounting seat 20, and the right stabilizer wheel support seat is disposed below the third longitudinal beam 110. The left and right stabilizer wheel supports are symmetrically disposed on the beam assembly 10.
The left stabilizer wheel support seat includes a left support frame 30 and a stabilizer wheel mount 50, and the right stabilizer wheel support seat includes a right support frame 40 and a stabilizer wheel mount 50.
Referring to fig. 8 and 9, the left support 30 includes a left inner sealing plate 31, two bending pieces 33 and a left outer sealing plate 32. Both the left inner closure plate 31 and the left outer closure plate 32 are generally T-shaped as viewed in the X direction.
The upper part of the left inner closing plate 31 and the upper part of the left outer closing plate 32 are both provided with semicircular notches. The left inner sealing plate 31 and the left outer sealing plate 32 are arranged oppositely, and the two bending pieces 33 are arranged between the left inner sealing plate 31 and the left outer sealing plate 32 and are respectively connected with the left inner sealing plate 31 and the left outer sealing plate 32.
The hollow structure formed by the left inner sealing plate 31, the left outer sealing plate 32 and the bending piece 33 is provided with a stabilizing wheel mounting seat 50 at the opening at the lowermost end.
The left support frame 30 has few bending structures and simple shape, and does not need to be processed by a bending die, so that the production cost is reduced. Meanwhile, the left support frame 30 is simple in structure and small in welding deformation, and machining size can be met without the aid of a tool.
The stabilizing wheel mounts 50 are cast pieces that reduce the amount of welding during the forming of the truck frame 100. The residual stress of the casting is small, and good dimensional accuracy can be maintained for a long time, so that the deformation caused by welding is controlled in the process of welding and forming the bogie frame 100.
Therefore, the welding deformation of the left stabilizing wheel supporting seat is small, and the welding size can be ensured.
Left brace 30 also includes openings N, M and O, where opening M and opening N are disposed in opposition and opening O is located between opening M and opening N.
The left support frame 30 is arranged below the electric assembly mounting seat 20, that is, the opening N of the left support frame 30 is sealed by the rear support plate 1014; the opening M of the left support bracket 30 is closed by the front support plate 1013.
Referring to fig. 11 and 12, the right support bracket 40 includes a right inner closure plate 41, two flat plates 43, and a right outer closure plate 42. The right inner sealing plate 41 and the right outer sealing plate 42 are disposed opposite to each other, and the two flat plates 43 are disposed between the right inner sealing plate 41 and the right outer sealing plate 42 and connected to the right inner sealing plate 41 and the right outer sealing plate 42, respectively.
The hollow structure formed by the right inner sealing plate 41, the right outer sealing plate 42 and the flat plate 43 is provided with a stabilizing wheel mounting seat 50 at the opening of the lowest end.
The bending structure of the right support frame 40 is few, the shape is simple, the processing by means of a bending die is not needed, and the production cost is reduced. Meanwhile, the right support frame 40 is simple in structure and small in welding deformation, and machining size can be met without the aid of a tool. Therefore, the welding deformation of the right stabilizing wheel supporting seat is small, and the welding size can be ensured.
The right support bracket 40 also includes an opening P. The right support frame 40 is disposed below the third longitudinal beam 110, that is, one end of the right support frame 40 is connected to the front support plate 1013, the other end is connected to the rear support plate 1014, and the opening P of the right support frame 40 is closed by the third longitudinal beam bottom plate 1010 of the lower seal 13.
For further optimization, the stabilizer wheel mount 50 is provided with vent holes 51.
For example, the opening P of the right support frame 40 is closed, so that the sealed space formed by assembly welding has a large amount of air heated by welding, and the air expands due to heating, which may cause welding defects or cracks in the welding seam. The arrangement of the air exhaust hole 51 can effectively exhaust hot air, and the problems are avoided. Similarly, the vent hole 51 of the stabilizer wheel mount 50 functions as well for the left support bracket 30.
Specifically, referring to fig. 13 and 14, the electric assembly mount 20 includes a first backing plate 21, a second backing plate 22, an inner ring plate 23, an upper ring plate 24, a lower ring plate 25, a brake mount 26, and a brake mount plate 27. The electromotive assembly mounting base 20 is formed with an electromotive assembly mounting hole 201.
The first back plate 21 is circular and provided with a first electric assembly mounting hole 211.
The second back plate 22 is circular, one surface of the second back plate 22 is connected to one surface of the first back plate 21, and the second back plate 22 is provided with a second electric assembly mounting hole 221. The axis of the first power assembly mounting hole 211 coincides with the axis of the second power assembly mounting hole 221, and the profile of the first power assembly mounting hole 211 coincides with the profile of the second power assembly mounting hole 221. That is, the first electromotive assembly mounting hole 211 and the second electromotive assembly mounting hole 221 together form the mounting electromotive assembly mounting hole 201.
The second back plate 22 further includes a plurality of first fixing holes 222 and a plurality of second fixing holes 223. The first fixing holes 222 are uniformly distributed at equal angles relative to the axis of the second electric assembly mounting hole 221, and the first fixing holes 222 are uniformly distributed on the upper portion of the second back plate 22 in a fan shape relative to the axis of the second electric assembly mounting hole 221.
The inner ring plate 23 is machined from a plate rolling machine and includes a portion a and a portion b. The part a forms an unclosed arc plate around the X direction, and a space corresponding to the gap is provided with a brake mounting seat 26. The part b forms a circular arc plate around the X direction.
The radius corresponding to the part a is equal to the radius corresponding to the part b. One end of the part a is connected with one end of the part b, so that the corresponding axis of the part a is coincident with the corresponding axis of the part b.
One end of the part b of the inner ring plate 23 is disposed on the outer contour of the second back plate 22, such that the axis of the second electric assembly mounting hole 221, the axis corresponding to the part a, and the axis corresponding to the part b are collinear, and the plurality of second fixing holes 223 of the second back plate 22 are located directly above the notches of the inner ring plate 23.
The upper ring plate 24 and the lower ring plate 25 are machined into curved plates by a plate rolling machine, the upper ring plate 24 forms an arc plate around the X direction, and the lower ring plate 25 extends along the X direction to form a wave-shaped plate. The radius of the upper ring plate 24 is larger than that of the portion b of the inner ring plate 23.
One end of the upper ring plate 24 is connected with a partial outer contour of the upper portion of the first back plate 21, and is located right above the notch of the portion a of the inner ring plate 23, so that the axis corresponding to the upper ring plate 24 coincides with the axis of the first electric assembly mounting hole 211 of the first back plate 21.
One end of the lower ring plate 25 is connected to a part of the outer contour of the lower portion of the first back plate 21, and is located right below the part b of the inner ring plate 23.
The brake mounting plate 27 is substantially semicircular in shape and is provided with a plurality of third fixing holes 271. The stopper mounting plate 27 connects the upper ring plate 24 and the portion a of the inner ring plate 23 such that the axis of each of the third fixing holes 271 is collinear with the axis of one of the second fixing holes 223.
Brake mount 26 is fixed to electric motor assembly mount 20 through second fixing hole 223 and third fixing hole 271.
The upper ring plate 24, the lower ring plate 25, the inner ring plate 23, the brake mounting plate 27, and the first back plate 21 constitute an opening E, an opening F (not shown), and an opening G, which are disposed facing each other and located below the opening E, F.
Referring to fig. 10, referring to the structure of the beam assembly 10 described above, the electric motor assembly mount 20 is disposed between the front cross member 103 and the rear cross member 104, i.e., the opening E of the electric motor assembly mount 20 is closed by the front support plate 1013; the opening F of the electric motor assembly mount 20 is closed by the rear support plate 1014; the opening G of the electromotive assembly mounting base 20 is closed by the left inner cover plate 31 of the left support frame 30, while the opening O of the left support frame 30 is closed by the portion b of the inner ring plate 23 of the electromotive assembly mounting base 20.
In some embodiments of the present invention, the bogie frame 100 further comprises four guide wheel mounts 60, the guide wheel mounts 60 being used to mount guide wheels 600 for guiding, so that the bogie frame 100 travels along the guide rails more smoothly and the train ride is more comfortable.
Two guide wheel mounting seats 60 are provided at lower portions of both ends of the front cross member 103, and the other two guide wheel mounting seats 60 are provided at lower portions of both ends of the rear cross member 104.
Referring to fig. 15-17, a bogie assembly includes a bogie frame 100 of a straddle monorail, an electric motor assembly 200, two suspension devices 300, running wheels 400, two stabilizing wheels 500, and four guide wheels 600.
The electric motor assembly 200 is mounted to the electric motor assembly mount 20 of the bogie frame 100, and the running wheels 400 are rotatably mounted to the electric motor assembly 200. The electric assembly 200 powers the running wheels 400 so that the running wheels 400 run along the upper surface of the guide rail.
The suspension device 300 is mounted to the suspension mounting seat 105 of the bogie frame 100, and the suspension device 300 serves to support a railway car, to buffer the shock of the car, to thereby reduce the shock or the sense of jolt of the railway car during traveling, and to reduce the traveling noise of the railway vehicle.
The two stabilizing wheels 500 are respectively connected to the left stabilizing wheel support seat and the right stabilizing support seat and located at both sides of the guide rail. Four guide wheels 600 are respectively connected to the guide wheel mounting base 60, two guide wheels 600 are located at one side of the guide rail, and the other two guide wheels 600 are located at the other side of the guide rail. Wherein, the outer peripheral surfaces of the stabilizing wheel 500 and the guide wheel 600 are all stopped against the side surface of the guide rail.
The two stabilizing wheels 500 and the four guide wheels 600 can ensure the running safety of the train vehicle and improve the running stability of the carriage.
Referring to FIGS. 15-17, a straddle-type monorail vehicle comprises a wheel package 700, a floor 800 and a bogie assembly as described above. The wheel package 700 of the straddle-type monorail vehicle covers the running wheels 400 and the electric assembly 200, and the horizontal extension plane of the floor 800 is higher than the rotation axes of the running wheels 400 and lower than the highest part of the running wheels 400. In some embodiments, seats are provided on the wheel package 700 of the vehicle, further taking advantage of the space where the running wheels 400 protrude above the floor 800.
The above examples are only illustrative of the technical solutions of the present invention and not restrictive, and although the present invention is described in detail with reference to the examples, those of ordinary skill in the art should understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (14)

1. A bogie frame, comprising:
the beam assembly comprises a left side longitudinal beam, a right side longitudinal beam, a front side cross beam and a rear side cross beam, the front side cross beam and the rear side cross beam are both positioned between the left side longitudinal beam and the right side longitudinal beam, two ends of the front side cross beam are respectively connected with the left side longitudinal beam and the right side longitudinal beam, and two ends of the rear side cross beam are respectively connected with the left side longitudinal beam and the right side longitudinal beam; the upper surface of the left side longitudinal beam and the upper surface of the right side longitudinal beam are both provided with a suspension mounting seat;
an electric assembly mount disposed between the front cross member and the rear cross member; the electric assembly mounting base is respectively arranged at intervals with the left side longitudinal beam and the right side longitudinal beam, and the transverse spacing distance between the electric assembly mounting base and the left side longitudinal beam is greater than that between the electric assembly mounting base and the right side longitudinal beam; the electric assembly mounting seat is provided with an electric assembly mounting hole;
wherein, the electric assembly mounting hole with hang the mount pad and set up in the horizontal relative, just the upper surface of hanging the installation department is located the axis of electric assembly mounting hole with between the lower of electric assembly mounting hole.
2. The bogie frame of claim 1, wherein the upper surfaces of the front and rear cross members have a height greater than the height of the upper surfaces of the left and right cross members.
3. The bogie frame of claim 2, further comprising four connecting beams; the first connecting beam is connected with the front side cross beam and the left side longitudinal beam, the second connecting beam is connected with the front side cross beam and the right side longitudinal beam, the third connecting beam is connected with the rear side cross beam and the left side longitudinal beam, and the fourth connecting beam is connected with the rear side cross beam and the right side longitudinal beam;
the upper surface of the connecting beam is obliquely arranged; the higher one end of tie beam with front side crossbeam or the rear side crossbeam is connected, the lower one end of tie beam with the left side longeron or the right side longeron is connected.
4. The bogie frame according to claim 1, comprising an upper seal member, a middle support frame and a lower seal member which are connected in sequence from top to bottom;
the upper sealing piece comprises a left side longitudinal beam cover plate, a right side longitudinal beam cover plate, a front side cross beam cover plate and a rear side cross beam cover plate; the middle support frame comprises a left support plate, a right support plate, a front support plate and a rear support plate; the lower sealing piece comprises a left side longitudinal beam bottom plate, a right side longitudinal beam bottom plate, a front side cross beam bottom plate and a rear side cross beam bottom plate;
the left side longitudinal beam cover plate, the left support plate and the left side longitudinal beam bottom plate are connected to form a left side longitudinal beam;
the right side longitudinal beam cover plate, the right support plate and the right side longitudinal beam bottom plate are connected to form the right side longitudinal beam;
the front side cross beam cover plate, the front support plate and the front side cross beam bottom plate are connected to form the front side cross beam;
the rear cross beam cover plate, the rear supporting plate and the rear cross beam bottom plate are connected to form the rear cross beam.
5. The bogie frame of claim 1, wherein the suspension mount is disposed in a middle portion of the left or right side rail.
6. The bogie frame of claim 1 or 5, further comprising an additional air chamber located below the suspension mount and at least partially inside the left or right side rail.
7. The bogie frame of claim 1, wherein the beam assembly further comprises a third longitudinal beam disposed between the front and rear cross members;
the left side longitudinal beam, the electric assembly mounting seat, the third longitudinal beam and the right side longitudinal beam are arranged at intervals in the transverse direction;
the electric assembly mounting seat, the third longitudinal beam, the front side cross beam and the rear side cross beam define a walking wheel mounting groove.
8. The bogie frame of claim 7 further comprising a left stabilizing wheel support base and a right stabilizing wheel support base, the lower ends of the left and right stabilizing wheel support bases each being adapted to receive a stabilizing wheel;
the left stabilizing wheel supporting seat is arranged below the electric assembly mounting seat, and the right stabilizing wheel supporting seat is arranged below the third longitudinal beam.
9. The bogie frame of claim 8, wherein the left stabilizing wheel support base is a hollow structure,
the left stabilizing wheel supporting seat comprises a left inner sealing plate, two bending pieces and a left outer sealing plate, the left inner sealing plate and the left outer sealing plate are arranged oppositely, the bending pieces are arranged between the left inner sealing plate and the left outer sealing plate and connected with the left inner sealing plate and the left outer sealing plate.
10. The bogie frame of claim 8, wherein the right stabilizing wheel support base is a hollow structure,
the right stabilizing wheel supporting seat comprises a right inner sealing plate, two flat plates and a right outer sealing plate, the right inner sealing plate and the right outer sealing plate are oppositely arranged, the two flat plates are arranged between the right inner sealing plate and the right outer sealing plate and are connected with the right inner sealing plate and the right outer sealing plate.
11. The bogie frame of claim 8 wherein the lower ends of the left and right stabilizer wheel supports are provided with vent holes.
12. The bogie frame of claim 1, further comprising four guide wheel mounts; the guide wheel mounting seats are arranged on the lower portions of the two ends of the front side cross beam, and the other two guide wheel mounting seats are arranged on the lower portions of the two ends of the rear side cross beam.
13. A bogie assembly comprising an electric drive assembly, suspension means, road wheels and a bogie frame according to any one of claims 1 to 12,
the electric assembly is arranged on an electric assembly mounting seat of the bogie frame;
the suspension device is mounted on a suspension mounting seat of the bogie frame;
the running wheels are rotatably mounted on the electric assembly.
14. A straddle-type monorail vehicle comprising a wheel package, a floor and a bogie assembly according to claim 13,
the wheel package covers the walking wheels and the electric assembly;
the horizontal extension plane of the floor is higher than the rotation axis of the running wheels and lower than the highest part of the running wheels.
CN201911066616.8A 2019-11-04 2019-11-04 Bogie frame and have its bogie assembly and straddle type monorail vehicle Active CN112758122B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911066616.8A CN112758122B (en) 2019-11-04 2019-11-04 Bogie frame and have its bogie assembly and straddle type monorail vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911066616.8A CN112758122B (en) 2019-11-04 2019-11-04 Bogie frame and have its bogie assembly and straddle type monorail vehicle

Publications (2)

Publication Number Publication Date
CN112758122A true CN112758122A (en) 2021-05-07
CN112758122B CN112758122B (en) 2022-08-09

Family

ID=75692292

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911066616.8A Active CN112758122B (en) 2019-11-04 2019-11-04 Bogie frame and have its bogie assembly and straddle type monorail vehicle

Country Status (1)

Country Link
CN (1) CN112758122B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113715862A (en) * 2021-09-07 2021-11-30 中车唐山机车车辆有限公司 Single-wheel-pair bogie frame, bogie and railway vehicle

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105292134A (en) * 2015-12-07 2016-02-03 南车株洲电力机车有限公司 Directly-driven straddling-type gearless single-rail bogie
CN206141547U (en) * 2016-09-21 2017-05-03 比亚迪股份有限公司 Drive mechanism , bogie assembly and stride a formula monorail vehicle
CN206202293U (en) * 2016-09-21 2017-05-31 比亚迪股份有限公司 Bogie assembly and rail vehicle
CN206202314U (en) * 2016-09-21 2017-05-31 比亚迪股份有限公司 Bogie assembly and straddle-type single-track vehicle
CN107618529A (en) * 2017-10-17 2018-01-23 通号轨道车辆有限公司 A kind of straddle-type monorail train and its dual-axis bogie
CN207631263U (en) * 2017-10-16 2018-07-20 重庆中车长客轨道车辆有限公司 A kind of straddle-type monorail train and its four side bearing formula single-axle bogies
CN108860202A (en) * 2018-08-03 2018-11-23 中车株洲电力机车有限公司 A kind of low-floor Car Bogie for Straddle Monorail Line and body layout
CN109835366A (en) * 2017-11-24 2019-06-04 比亚迪股份有限公司 Bogie frame and bogie, rail vehicle and Rail Transit System with it
US20190210620A1 (en) * 2016-09-21 2019-07-11 Byd Company Limited Bogie assembly and straddle-type monorail vehicle having same
CN110155107A (en) * 2019-05-29 2019-08-23 中国铁建重工集团股份有限公司 Bogie and monorail operation vehicle
CN110304095A (en) * 2019-07-16 2019-10-08 通号轨道车辆有限公司 Straddle-type monorail framework manufacturing method and straddle-type monorail framework

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105292134A (en) * 2015-12-07 2016-02-03 南车株洲电力机车有限公司 Directly-driven straddling-type gearless single-rail bogie
CN206141547U (en) * 2016-09-21 2017-05-03 比亚迪股份有限公司 Drive mechanism , bogie assembly and stride a formula monorail vehicle
CN206202293U (en) * 2016-09-21 2017-05-31 比亚迪股份有限公司 Bogie assembly and rail vehicle
CN206202314U (en) * 2016-09-21 2017-05-31 比亚迪股份有限公司 Bogie assembly and straddle-type single-track vehicle
US20190210620A1 (en) * 2016-09-21 2019-07-11 Byd Company Limited Bogie assembly and straddle-type monorail vehicle having same
CN207631263U (en) * 2017-10-16 2018-07-20 重庆中车长客轨道车辆有限公司 A kind of straddle-type monorail train and its four side bearing formula single-axle bogies
CN107618529A (en) * 2017-10-17 2018-01-23 通号轨道车辆有限公司 A kind of straddle-type monorail train and its dual-axis bogie
CN109835366A (en) * 2017-11-24 2019-06-04 比亚迪股份有限公司 Bogie frame and bogie, rail vehicle and Rail Transit System with it
CN108860202A (en) * 2018-08-03 2018-11-23 中车株洲电力机车有限公司 A kind of low-floor Car Bogie for Straddle Monorail Line and body layout
CN110155107A (en) * 2019-05-29 2019-08-23 中国铁建重工集团股份有限公司 Bogie and monorail operation vehicle
CN110304095A (en) * 2019-07-16 2019-10-08 通号轨道车辆有限公司 Straddle-type monorail framework manufacturing method and straddle-type monorail framework

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113715862A (en) * 2021-09-07 2021-11-30 中车唐山机车车辆有限公司 Single-wheel-pair bogie frame, bogie and railway vehicle

Also Published As

Publication number Publication date
CN112758122B (en) 2022-08-09

Similar Documents

Publication Publication Date Title
CN112519820B (en) Bogie system of railway vehicle and railway vehicle
CN207931733U (en) A kind of bogie with there is its Rail Transit System
CN105151068B (en) Power truck and light rail vehicle
JP6356342B2 (en) Rail vehicle
CN112519821A (en) Bogie cabin for railway vehicle and bogie system
WO2022120933A1 (en) Bogie beam, bogie and rail vehicle
CN113715862A (en) Single-wheel-pair bogie frame, bogie and railway vehicle
JP6178299B2 (en) Railway vehicle trolley and railway vehicle
US12172680B2 (en) Maglev vehicle and suspension frame assembly thereof
WO2023093797A1 (en) Double-layer side beam bogie and rail vehicle
TW202346132A (en) rail vehicle
JP2013203321A (en) Truck frame for railway vehicle and method of manufacturing the truck frame for railway vehicle
CN112758122A (en) Bogie frame and have its bogie assembly and straddle type monorail vehicle
CN111114576B (en) Bogie and monorail train
WO2023093801A1 (en) Bogie with side beam fixing seat, and rail vehicle
WO2023093793A1 (en) Bogie and rail vehicle
CN214356039U (en) Novel framework for axle box bogie in railway vehicle
CN210822273U (en) Bogie and rail vehicle
CN112776845B (en) Bogie assembly and rail vehicle
CN205930747U (en) Framework of bogie
TW202521391A (en) Rail car
CN208376774U (en) A kind of railway vehicle bogie frame and bogie
CN217124797U (en) Bogie, rail transit vehicle and rail transit system
RU181149U1 (en) RAILWAY CAR VEHICLE FRAME
CN206664598U (en) Motor car bogie framework and rail vehicle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant