CN106240593B - Low-floor articulated track vehicle bogie frame and bogie - Google Patents
Low-floor articulated track vehicle bogie frame and bogie Download PDFInfo
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- CN106240593B CN106240593B CN201610602305.9A CN201610602305A CN106240593B CN 106240593 B CN106240593 B CN 106240593B CN 201610602305 A CN201610602305 A CN 201610602305A CN 106240593 B CN106240593 B CN 106240593B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL 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
- B61F5/00—Constructional 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
- B61F5/50—Other details
- B61F5/52—Bogie frames
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Abstract
The present invention relates to a kind of low-floor articulated track vehicle bogie frame and bogies, framework is made of two curb girders, a center crossbeam, two end carriages and two mounting rails, two end carriages are separately fixed at the both ends of two curb girders, the both ends of the center crossbeam are fixed on the middle part of two sides curb girder, the mounting rail is fixed on the outside of curb girder, the curb girder and mounting rail are by the box structure of top plate and bottom plate and gusset splicing welding, and the center crossbeam and end carriage are integrally casting structure.Framework of the invention uses the structure of steel plate and casting Combination Welding, minimize the welding interior stress of structure, and largely reduce welding capacity, improve the processing performance and packaging efficiency of framework, the integrally-built intensity of framework, rigidity, anti-fatigue performance and bearing capacity are all largely increased, and meet the safe operation requirement of high speed railway car.
Description
Technical field
The present invention relates to a kind of bogie of rail vehicle, in particular to a kind of low-floor articulated track vehicle bogie
Framework belongs to rail vehicle manufacturing technology field.
Background technique
Low-floor urban rail vehicle is flexible and convenient with its, adaptable, the construction period is short, unit comprehensive cost and operation cost
More low advantage plays increasingly important role in many urban transportations, and in Low-floor urban rail vehicle, bogie is made
For most important structure member, structure and parameters directly determine the stability of vehicle operation and the comfort of seating.
Existing 100% Low-floor urban rail vehicle causes vehicle down space limited since floor is lower, limits vehicle and turns
Design to frame, in addition existing 100% Low-floor urban rail vehicle bogie generally has that small curve negotiation ability is poor, floor
It is higher be difficult to get on or off the bus setting and heavy traction device the problems such as.With being constantly progressive for city rail vehicle, city rail vehicle is wanted
Ask higher and higher, it is therefore desirable to which floor can be reduced conducive to get on or off the bus setting, and simple and compact for structure, curve by providing one kind
Strong, the light-weight low-floor articulated track vehicle bogie of handling capacity.
In bogie, the equipment such as driving motor, brake apparatus, traction device, single stage suspension device, secondary suspension device
It is required to be fixedly mounted architecturally, therefore the overall structural strength of framework plays key to the overall operation performance of rail vehicle
Effect.
Summary of the invention
Present invention is primarily aimed at solving the above problems and insufficient, provide it is a kind of simple and compact for structure, it is light-weight, improve
Framework overall structural strength and bearing capacity, and welding capacity can be greatly decreased, improve the low-floor radial type rail of framework craftsmanship
Road vehicle bogie frame.
Another main purpose of the invention is, provides a kind of low-floor articulated track vehicle with above-mentioned framework
Bogie.
To achieve the above object, the technical scheme is that
A kind of low-floor articulated track vehicle bogie frame, by two curb girders, a center crossbeam, two end carriages and
Two mounting rail compositions, two end carriages are separately fixed at the both ends of two curb girders, the both ends of the center crossbeam
It is fixed on the middle part of two sides curb girder, the mounting rail is fixed on the outside of curb girder, and the curb girder and mounting rail are by top plate, bottom
The box structure of plate and gusset splicing welding, the center crossbeam and end carriage are integrally casting structure.
Further, the curb girder and mounting rail form II shape structure of middle opening after welding.
Further, the curb girder is the π shape structure being made of a curb girder stringer and two curb girder crossbeams, two sides
The outside of the curb girder stringer is arranged in beam crossbeam.
Further, the mounting rail is linear type beam, is connect with the end butt welding of two curb girder crossbeams,
Or, the mounting rail is the π shape structure being made of a mounting rail stringer and two mounting rail crossbeams, described in two
The inside of the mounting rail stringer is arranged in mounting rail crossbeam, and two mounting rail crossbeams and corresponding two curb girders are horizontal
Beam butt welding connection.
Further, in the mounting rail and the butt-welded position of curb girder, the weldering of mounting rail top plate and the docking of curb girder top plate
The weld seam that seam and the weld seam of mounting rail bottom plate and curb girder bottom plate docking are docked with mounting rail gusset and curb girder gusset mutually staggers.
Further, the end carriage is I-shape construction, two ends on the inside of the end carriage and corresponding two curb girders
End butt welding connection.
Further, two ends on the inside of the end carriage have the part thickeied, in the end sidewalls that end carriage thickeies
With the structure to concave, the top margin of end carriage thickened end and bottom edge it is corresponding with curb girder top plate and the butt welding of curb girder bottom plate in succession
It connects, the side wall butt welding that curb girder gusset lengthens the inside and end carriage that stretch to the concave inward structure of end carriage thickened end connects.
Further, the center crossbeam is linear type structure, is had in the position that the curb girder and center crossbeam are welded to connect
There is a U-shaped opening being recessed inwardly, there is the part widened in the end of the center crossbeam, which is inserted into institute
It states in U-shaped opening and is welded to connect.
Further, there are the structure to concave, center crossbeam enlarged width end portions in the end sidewalls that the center crossbeam is widened
The corresponding curb girder top plate and curb girder bottom plate butt welding at U-shaped opening of top margin and bottom edge connect, the curb girder of U-shaped opening two sides
The side wall butt welding that gusset lengthens the inside and center crossbeam that stretch to center crossbeam concave inward structure connects.
Another technical solution of the invention is:
A kind of low-floor articulated track vehicle bogie has framework as described above.
To sum up content, a kind of low-floor articulated track vehicle bogie frame and bogie of the present invention are and existing
There is technology to compare, has the advantages that
(1) framework of the invention uses the structure of steel plate and casting Combination Welding, is down to the welding interior stress of structure most
It is low, and welding capacity is largely reduced, the processing performance and packaging efficiency of framework are improved, framework integrally-built intensity, resists rigidity
Fatigue behaviour and bearing capacity are all largely increased, and meet the safe operation requirement of high speed railway car.
(2) framework of the invention is by being optimized design to overall structure, by using I-shaped end carriage, π shape
The center crossbeam of curb girder and linear type is connected, and making framework is integrally in flat structure, is made full use of limited between mechanism of independent wheel
Space, not only frame construction is rationally compact, light-weight, and significantly reduces the height in car body floor face, meets 100% low land
The requirement of wooden handcart.
(3) present invention is designed by reasonable structure, and the position of welded connecting is all placed on straightway, junction
Weld seam is also all made of the structure mutually staggered, effectively prevents welding stress concentration, minimizes the welding interior stress of structure,
Further improve overall structural strength, rigidity, anti-fatigue performance and the bearing capacity of framework.
Detailed description of the invention
Fig. 1 is bogie structure schematic diagram of the present invention；
Fig. 2 is frame construction schematic diagram of the present invention；
Fig. 3 is the structure schematic diagram of Fig. 2；
Fig. 4 is the structural plan figure of Fig. 2.
As shown in Figures 1 to 4, swing mechanism 1, framework 2, bolster 3, drawing pull bar 4 are taken turns to 5, and lateral damper 6 is vertical
Damper 7, curb girder 8, curb girder stringer 8a, curb girder crossbeam 8b, end carriage 9, mounting rail 10, mounting rail stringer 10a, mounting rail crossbeam
10b, center crossbeam 11, curb girder top plate 12, curb girder bottom plate 13, curb girder gusset 14, mounting rail top plate 15, mounting rail bottom plate 16, peace
Fill beam gusset 17, open slot 18, drawing pull bar mounting base 19, drawing pull bar mounting base 20, braking stopping seat 21, motor mount
22, secondary spring mounting base 23, primary spring mounting base 24, lateral damper mounting base 25, vertical damper mounting base 26 is convex
Play 27, lateral backstop opening 28, mounting hole 29, longitudinal backstop 30, lifting opening 31, gusset 32, side cover plate mounting base 33, draining
Hole 34, drainage hole 35, mounting hole 36, opening 37, fixing seat 38, U-shaped opening 39, bolt hole 40.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
As shown in Figure 1, a kind of low-floor articulated track vehicle bogie, is mounted on low-floor articulated track vehicle
On, bogie is installed below the junction in every two section compartment, two section compartments are connected with the bogie by swing mechanism 1 respectively
It connects.
Bogie includes 3, two groups of bolster, 4, the two groups of wheels of drawing pull bar of framework 2, two to 5, four driving motors, two
Group magnetic rail brake device, two groups of axis bridges, eight primary springs, four secondary springs etc., four driving motors independently drive four
A wheel, is mounted on a set of swing mechanism 1 on two bolster 3, and two bolster 3 are separately mounted to two groups of wheels to 5 centre,
The both ends of every group of drawing pull bar 4 are fixedly connected with bolster 3 and framework 2 respectively, are pacified between the outside and framework 2 of every group of bolster 3
Equipped with lateral damper 6 and vertical damper 7, primary spring is mounted between axis bridge and framework 2, and secondary spring is mounted on framework
Between 2 and bolster 3.
In the present embodiment, bogie passes through swing mechanism 1 with the car body in two adjacent section compartments respectively by two bolster 3
Connection, and each bolster 3 directly connect realization traction and system by one group of drawing pull bar 4 respectively with the center crossbeam 11 of framework 2
Dynamic, the transmitting of traction and brake force when vehicle operation can not only be better achieved carries vertical, transverse direction, longitudinal loading, also very big
Ground improves the small curve negotiation ability of vehicle, while can reduce the configuration quantity of bogie 1 in vehicle marshalling, saves vehicle
Manufacture, repair and maintenance cost.Two bolster 3 are connect by one group of drawing pull bar 4 with the center crossbeam 11 of framework 2 respectively, make two
It is not influenced mutually between a bolster 3 and two groups of drawing pull bars 4, a bolster 3 does not interfere with another in longitudinal movement and shakes
The longitudinal movement of pillow 3, and the vibratory impulse in a compartment is not transferred to another compartment, is independent of each other, and realizes that two is adjacent
Decoupling between car body greatly improves the comfort and reliability of operation of seating.
As shown in Figures 2 to 4, framework 2 provided by the invention, including two mounting rails 10 of end carriage 9, two of curb girder 8, two
With a center crossbeam 11.
Wherein, two 8 structures of curb girder are identical and mutually right centered on longitudinal (the referring to vehicle body longitudinal direction) center line of car body
Claim setting.Two curb girders 8 are the π shape structure being made of a curb girder stringer 8a and two curb girder crossbeam 8b, to improve curb girder 8
Overall structural strength and bearing capacity.Curb girder stringer 8a is linear type structure, and two curb girder crossbeam 8b are parallel to each other and and side
Beam stringer 8a is vertical, and two curb girder crossbeam 8b are arranged in outer in the cross-car (referring to width of the carbody direction) of curb girder stringer 8a
Side, a curb girder stringer 8a and two curb girder crossbeam 8b are whole on a horizontal plane, to reduce the height in car body floor face.
Curb girder 8 is spliced by curb girder top plate 12, curb girder bottom plate 13 and muti-piece curb girder gusset 14 and is welded using box structure
It forms, the π shape structural steel and iron that curb girder top plate 12 and curb girder bottom plate 13 are integrated, curb girder gusset 14 also uses steel plate, vertical welding
Connect the structure that box-shaped is surrounded between curb girder top plate 12 and curb girder bottom plate 13, the welding position of curb girder gusset 14 is staggered curb girder top plate
12 and 13 side edge of curb girder bottom plate position, to improve the structural strength of curb girder 8, and reduce welding interior stress to the maximum extent
Generation.
Each braking stopping seat 21 for fixing a magnetic rail brake device on the side of two curb girder crossbeam 8b brakes stopping seat 21
For a rectangular steel plate, it is weldingly fixed on curb girder crossbeam 8b.Platform is overlapped (in figure not in the back side protrusion one of braking stopping seat 21
Show), curb girder top plate 12 and curb girder bottom plate 13 at curb girder crossbeam 8b outwardly protrude a fixing seat 38 here, and upper and lower two are solid
Reservation 38 is overlapped in the upper and lower surface of overlap joint platform respectively and is welded to connect.
A mounting rail 10 is fixedly mounted again in the outside of the cross-car of each curb girder 8, mounting rail 10 can use one
Character form structure, in the present embodiment, mounting rail 10 then preferably uses the structure of π shape, and the mounting rail 10 of π shape structure is also installed by one
Beam stringer 10a and two mounting rail crossbeam 10b compositions, two mounting rail crossbeam 10b are parallel to each other and hang down with mounting rail stringer 10a
Directly, the inside of two shorter cross-cars that mounting rail stringer 10a is arranged in of mounting rail crossbeam 10b length is (i.e. towards curb girder 8
Side).
Mounting rail 10 is using box structure, by mounting rail top plate 15, mounting rail bottom plate 16 and muti-piece mounting rail gusset
17 splicings are welded, the π shape structural steel and iron that mounting rail top plate 15 and mounting rail bottom plate 16 are integrated, mounting rail gusset 17
Using steel plate, it is vertically welded in the structure that box-shaped is surrounded between mounting rail top plate 15 and mounting rail bottom plate 16.Mounting rail gusset 17
Welding position the position of 16 side edge of back plate 15 and mounting rail bottom plate is installed in a staggered manner, it is strong with the structure for improving mounting rail 10
Degree, and the generation of welding interior stress is reduced to the maximum extent.
Two curb girder crossbeam 8b on curb girder 8 are mutually butted with two mounting rail crossbeam 10b on corresponding mounting rail 10
It is welded to connect, forms the II shape structure with square aperture 37 after 10 butt welding of curb girder 8 and mounting rail, this structure not only may be used
To guarantee the overall structural strength and bearing capacity of framework 2, the overall weight of framework 2 can also be mitigated.
At the docking of curb girder crossbeam 8b and mounting rail crossbeam 10b, the mounting rail gusset 17 of the end mounting rail crossbeam 10b to
The curb girder gusset 14 of one length of outer extension, the end curb girder crossbeam 8b inwardly shortens a length, the extended part of mounting rail gusset 17
Stretch to the inside of curb girder crossbeam 8b, the end butt welding of mounting rail gusset 17 and curb girder gusset 14,15 He of mounting rail top plate
12 butt welding of curb girder top plate, 13 butt welding of mounting rail bottom plate 16 and curb girder bottom plate, mounting rail top plate 15 and curb girder top plate 12
The weld seam of weld seam and mounting rail bottom plate 16 and curb girder bottom plate 13 docking of docking is docked with curb girder gusset 14 and mounting rail gusset 17
Weld seam mutually stagger, avoid weld stress from concentrating, further increase the overall structural strength of framework 2.
The main body and curb girder 8 of mounting rail 10 are whole on a horizontal plane, and whole is in flat structure, to reduce vehicle
A motor mount 22 is respectively arranged in two ends of mounting rail stringer 10a in the height of body floor, to guarantee driving motor
Axle center and wheel to 5 axle center point-blank, in the present embodiment, two ends of mounting rail stringer 10a are upturned,
End forms the arcuate structure being bent upwards, and driving motor is directly bolted on motor mount 22, that is, can guarantee
Its axle center and wheel to 5 axle center point-blank, mount and dismount it is very simple and convenient.
Center crossbeam 11 is linear type structure, and by cast steel integrally casting shaping, the both ends of center crossbeam 11 are weldingly fixed on
On the curb girder gusset 14 of two sides curb girder 8, center crossbeam 11 and curb girder 8 are in same level.In the position of welding center crossbeam 11
It sets, curb girder stringer 8a is recessed inwardly a U-shaped opening 39, and the end of center crossbeam 11 has the part widened, the end widened
It is inserted into welding in U-shaped opening 39.In the present embodiment, there is the structure to concave in the end sidewalls that center crossbeam 11 is widened,
The top margin of 11 enlarged width end portions of center crossbeam is connect with 12 butt welding of curb girder top plate at U-shaped opening 39, and center crossbeam 11 is widened
The bottom edge of end is connect with 13 butt welding of curb girder bottom plate at U-shaped opening 39, and the curb girder gusset 13 of 39 two sides of U-shaped opening lengthens
The inside for stretching to 11 concave inward structure of center crossbeam is connect with the side wall butt welding of center crossbeam 11, makes center crossbeam 11 and side
The butt weld of back plate 12 and curb girder bottom plate 13 and center crossbeam 11 and the butt weld of curb girder gusset 14 mutually stagger, in this way
The structural strength that center crossbeam 11 not only can be improved improves its bearing capacity, can also effectively avoid the welding of commissure from answering
Power is concentrated, and the structural strength of center crossbeam 11 is further increased.
The strip open slot 18 extended along cross-car is provided on center crossbeam 11, open slot 18 is in center crossbeam 11
Upper and lower surfaces on be respectively arranged one.As shown in Figure 1, being provided with spiral shell on the two sides side wall of upper and lower two open slots 18
Keyhole 40 is similarly provided with drawing pull bar installation in the side of two bolster 3 for drawing pull bar mounting base 19 to be fixedly mounted
Seat 20, the both ends of drawing pull bar 4 are separately fixed in corresponding drawing pull bar mounting base 19 and drawing pull bar mounting base 20.In
The two sides of heart crossbeam 11 are respectively installed there are two drawing pull bar 4, and two drawing pull bars 4 are arranged in parallel, and two drawing pull bars 4 are not
But it can play the role of transmitting tractive force and brake force, while also function to anti-side rolling, without additionally mounted a set of
Anti-side rolling torsion rod mechanism not only makes vehicle operation more steady, also makes the simple and compact for structure of framework 2, mitigates the weight of framework 2
Amount.
There is the groove of a strip in the bottom of the open slot 18 of center crossbeam 11, at least two are provided on groove
Drainage hole 34, groove are the rain to the inclined structure in 34 direction of drainage hole, for that will accumulate in 11 open slot 18 of center crossbeam
Water excludes.
Two end carriages 9 are symmetricly set on the two sides of center crossbeam 11, and two end carriages 9 are installed on two groups of wheels to 5 centre, no
But limited space between mechanism of independent wheel is taken full advantage of, is also conducive to reduce the height in car body floor face.In the present embodiment, end carriage 9
For I-shape construction, integrally casting shaping reduces welding capacity to guarantee the structural strength of end carriage 9.
Two ends (i.e. end of two of end carriage 9 along the inside of the longitudinally disposed curb girder of car body) of the inside of end carriage 9 with
The end butt welding of two curb girder stringer 8a is fixed, and has the part thickeied in the end that end carriage 9 is docked with curb girder stringer 8a,
So that the size of itself and the end curb girder stringer 8a is matched, improves the bonding area at this, and then the structure for improving the junction is strong
Degree.In the present embodiment, there is the structure to concave, the top margin of 9 thickened end of end carriage and end in the end sidewalls that end carriage 9 thickeies
12 butt welding of curb girder top plate connection, 13 butt welding of curb girder bottom plate of the bottom edge of 9 thickened end of end carriage and end connects, with
The butt-welded curb girder gusset 13 of 11 side wall of center crossbeam is extended to 9 direction of end carriage simultaneously, which partially protrudes into end carriage 9
The inside of the concave inward structure of thickened end is connect with the side wall butt welding of end carriage 9, makes end carriage 9 and curb girder top plate 12 and curb girder bottom
The butt weld of plate 13 and end carriage 9 and the butt weld of curb girder gusset 14 mutually stagger, and the structure of junction can be improved in this way
Intensity effectively avoids the welding stress of commissure from concentrating, greatly improves the structural strength of end carriage 9, improves its bearing capacity.
The back of end carriage 9 has multiple horizontal and vertical gussets 32, is additionally provided with secondary spring mounting base on end carriage 9
23, primary spring mounting base 24, lateral damper mounting base 25 and vertical damper mounting base 26.Gusset 32, secondary spring peace
Fill seat 23, primary spring mounting base 24, lateral damper mounting base 25, vertical damper mounting base 26 and 9 integrally casting of end carriage
Molding improves processing technology, improves the packaging efficiency of framework 2, while being also conducive to improve the overall structural strength of end carriage 9 and hold
Loading capability.
In the present embodiment, two secondary spring mounting bases 23, two secondary spring mounting bases 23 are set on each end carriage 9
It is symmetrical arranged centered on car body longitudinal centre line.Secondary spring mounting base 23 uses sinkage type structure, is the circle to lower recess
Tubular construction, secondary spring are fallen in the secondary spring mounting base 23, are mounted on 3 lower surface of bolster at the top of secondary spring
Mounting base (not shown) in.Secondary spring mounting base 23 uses sinkage type structure to provide to reduce car body floor face height
Reliable guarantee.
There is a upward protrusion 27 at the center of secondary spring mounting base 23, protrusion 27 is gone out with 9 integrally casting of end carriage
Come, secondary spring is provided centrally with the vertical backstop (not shown) extended downwardly, and protrusion 27 stretches to two systems
The inside of spring is arranged with vertical backstop face, between vertical backstop between the bottom of vertical backstop and the top of protrusion 27
Gap.When vehicle operates normally, do not contacted between the bottom and the top of protrusion 27 of vertical backstop, only in the biggish feelings of load capacity
Under condition, when secondary spring is compressed, the bottom of vertical backstop is contacted with 27 top of protrusion, and vertical backstop is also further compressed,
Due to two be steel coil spring rigidity be it is linear, the rigidity of the vertical backstop of rubber material be it is non-linear, when load capacity is larger
When, vertical backstop is contacted and is compressed with protrusion 27, while playing the role of backstop action, also functions to variation rigidity, favorably
In the dynamic performance for improving vehicle operation.
Multiple drainage holes 35 are also provided in the bottom of secondary spring mounting base 23, for secondary spring mounting base will to be accumulated in
Rainwater in 23 excludes.
There is a lateral backstop opening 28 at the center of end carriage 9, there is an extension (not show in figure for the lower section of bolster 3
Out), extension stretches in lateral backstop opening 28, has on the two sides gusset 32 in the cross-car of lateral backstop opening 28
There is the mounting hole 29 for installing lateral backstop, lateral backstop (not shown) is bolted on end carriage 9.In transverse direction
It is provided with longitudinal backstop 30 on longitudinal two gussets 32 of car body of backstop opening 28, longitudinal backstop 30 plays longitudinal load-bearing
Effect, when drawing pull bar 4 fails, longitudinal backstop 30 remains to drive vehicle operation with extension cooperation.
It is symmetrically provided with a lifting opening 31 in the two sides of lateral backstop opening 28, lifting bar is installed in lifting opening 31
The top of (not shown), lifting bar is fixedly connected with bolster 3, and the bottom of lifting bar stretches to the lower section of lifting opening 31,
Lifting bar can not only limit the maximum vertical vibration distance of car body, while can also play the role of bogie integral lifting,
Two lifting bars can keep balance when lifting.
As shown in figure 3, lateral backstop be open 28 two sides 9 back of end carriage gusset 32 and secondary spring mounting base 23 it
Between form the part of a cavity, the bottom of lifting bar is mounted in the part of the cavity, not only facilitates lateral backstop and lifting bar
Installation, be also convenient for daily maintenance, and it is not necessary that the structures such as lateral backstop mounting base, vertical backstop mounting base are in addition arranged,
The structure for simplifying framework 2 to a certain extent also mitigates the weight of framework 2.
There are four primary spring mounting bases 24, four primary spring mounting bases 24 to be located at end carriage 9 for setting on each end carriage 9
Four angles at, the mounting hole 36 of primary spring is provided in primary spring mounting base 24, the bottom of primary spring is fixed on axis
In the mounting base of bridge.
In the present embodiment, a lateral damper mounting base 25 and two vertical damper peaces are set on each end carriage 9
Seat 26 is filled, lateral damper mounting base 25 is arranged on the outside side wall of 9 intermediate beam of end carriage, big to the inverted L to stretch out outward
Shape structure is provided with the mounting hole (not indicating in figure) for fixed lateral damper 6 in lateral damper mounting base 25.It is vertical
Damper mounting base 26 is arranged on the end in two of end carriage 9 outsides, and vertical damper mounting base 26 is to car body longitudinal center
Line direction is stretched out, and is similarly inverted l-shaped structure, the peace for fixing vertical damper 7 is provided in vertical damper mounting base 26
It fills hole (not indicated in figure).The other end of lateral damper 6 and vertical damper 7 is fixed on the side wall of bolster 3.
Two side cover plate mounting bases 33, bogie side are fixed on the outside mounting rail gusset 17 of mounting rail stringer 10a
Respectively one strip side cover plate of installation, for covering internal bogie, side cover plate is bolted on side cover plate mounting base
On 33.
The mounting rail 10 of end carriage 9, two of two curb girders 8, two and a center crossbeam 11 in the present invention base after welding
In same plane, whole framework 2 is in flat structure, horizontal using the center of I-shaped end carriage 9, π shape curb girder 8 and linear type for this
Beam 11, I-shaped end carriage 9 are mounted on the centre taken turns to 5 two wheels, and π shape curb girder 8 is mounted on former and later two ipsilateral wheels
Between.It is light-weight by not only making framework 2 structurally reasonable compact to the integrally-built optimization design of framework 2, and sufficiently benefit
With the confined space between independent wheel, the height in car body floor face is significantly reduced, conducive to setting of getting on or off the bus, is met
The requirement of 100% low floor vehicle.
In the present invention, curb girder 8, mounting rail 10 use steel plate splicing welded structure, and end carriage 9 and center crossbeam 11 then use
The cast member of integrally casting shaping, entire framework 2 largely reduce welding capacity using the structure of steel plate and cast member Combination Welding,
The processing performance and packaging efficiency of framework 2 are improved, moreover, the position of welded connecting is all placed on straightway, junction
Weld seam be also all made of the structure mutually staggered, effectively prevent welding stress concentration, be down to the welding interior stress of structure most
Low, overall structural strength, rigidity, anti-fatigue performance and the bearing capacity of framework 2 are all largely increased, and meet high-speed rail vehicle
Safe operation requirement.
As described above, the plan content in conjunction with given by attached drawing, can derive similar technical solution.But it is all not take off
Content from technical solution of the present invention, according to the technical essence of the invention it is to the above embodiments it is any it is simple modification, etc.
With variation and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (9)
1. a kind of low-floor articulated track vehicle bogie frame, it is characterised in that: by two curb girders, a center crossbeam,
Two end carriages and two mounting rail compositions, the both ends for being fixed on two curb girders are respectively welded in two end carriages, described
The both ends of center crossbeam are weldingly fixed on the middle part of two sides curb girder, and the mounting rail is weldingly fixed on the outside of curb girder, the side
Beam and mounting rail are by the box structure of top plate and bottom plate and gusset splicing welding, and the end carriage is I-shape construction, the end
Two ends on the inside of beam are connected with the end butt welding of corresponding two curb girders, and the center crossbeam and end carriage are integrated
Cast structure has a lateral backstop opening at the center of the end carriage, is symmetrically provided with one in the two sides of lateral backstop opening
Lifting opening is symmetrically arranged with the secondary spring mounting base using sinkage type structure in lifting opening two sides, opens in lateral backstop
One is formed between the gusset and secondary spring mounting base at the end carriage back of mouth two sides for accommodating the chamber portion for mentioning boom foot.
2. a kind of low-floor articulated track vehicle bogie frame according to claim 1, it is characterised in that: the side
II shape structure of middle opening is formed after beam and mounting rail welding.
3. a kind of low-floor articulated track vehicle bogie frame according to claim 2, it is characterised in that: the side
Beam is the π shape structure being made of a curb girder stringer and two curb girder crossbeams, and two curb girder crossbeams are arranged in the curb girder
The outside of stringer.
4. a kind of low-floor articulated track vehicle bogie frame according to claim 3, it is characterised in that: the peace
Dress beam is linear type beam, is connect with the end butt welding of two curb girder crossbeams,
Or, the mounting rail is the π shape structure being made of a mounting rail stringer and two mounting rail crossbeams, two installations
Beam crossbeam is arranged in the inside of the mounting rail stringer, two mounting rail crossbeams and the corresponding two curb girder crossbeams pair
Connect welded connecting.
5. a kind of low-floor articulated track vehicle bogie frame according to claim 4, it is characterised in that: described
Mounting rail and the butt-welded position of curb girder, the weld seam and mounting rail bottom plate of mounting rail top plate and the docking of curb girder top plate and curb girder bottom
The weld seam that the weld seam of plate docking is docked with mounting rail gusset and curb girder gusset mutually staggers.
6. a kind of low-floor articulated track vehicle bogie frame according to claim 1, it is characterised in that: described
Two ends on the inside of end carriage have the part thickeied, have the structure to concave, end carriage in the end sidewalls that end carriage thickeies
The top margin of thickened end and bottom edge correspondence are connect with curb girder top plate and curb girder bottom plate butt welding, and the lengthening of curb girder gusset stretches to end
The inside of the concave inward structure of beam thickened end and the side wall butt welding of end carriage connect.
7. a kind of low-floor articulated track vehicle bogie frame according to claim 1, it is characterised in that: in described
Heart crossbeam is linear type structure, has a U-shaped opening being recessed inwardly in the position that the curb girder and center crossbeam are welded to connect,
There is the part widened in the end of the center crossbeam, which is inserted into the U-shaped opening and is welded to connect.
8. a kind of low-floor articulated track vehicle bogie frame according to claim 7, it is characterised in that: in described
There is the structure to concave, the top margin of center crossbeam enlarged width end portions and bottom edge correspondence and U-shaped in the end sidewalls that heart crossbeam is widened
The curb girder top plate of opening is connected with curb girder bottom plate butt welding, and the curb girder gusset lengthening of U-shaped opening two sides stretches to center cross
The inside of beam concave inward structure and the side wall butt welding of center crossbeam connect.
9. a kind of low-floor articulated track vehicle bogie, it is characterised in that: have as claim 1-8 is described in any item
Bogie frame.
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| CN201610602305.9A CN106240593B (en) | 2016-07-28 | 2016-07-28 | Low-floor articulated track vehicle bogie frame and bogie |
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| CN201610602305.9A CN106240593B (en) | 2016-07-28 | 2016-07-28 | Low-floor articulated track vehicle bogie frame and bogie |
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| CN106240593B true CN106240593B (en) | 2019-03-05 |
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| CN106240593A (en) | 2016-12-21 |
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