CN106080642B - Low-floor rail vehicle truck bolster structure and bogie - Google Patents
Low-floor rail vehicle truck bolster structure and bogie Download PDFInfo
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- CN106080642B CN106080642B CN201610579568.2A CN201610579568A CN106080642B CN 106080642 B CN106080642 B CN 106080642B CN 201610579568 A CN201610579568 A CN 201610579568A CN 106080642 B CN106080642 B CN 106080642B
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- bolster
- pull bar
- rail vehicle
- drawing pull
- low
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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
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/16—Centre bearings or other swivel connections between underframes and bolsters or bogies
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention relates to a kind of low-floor rail vehicle truck bolster structure and bogie, including bolster, the bolster is in the shape of the letter V structure, side on the car body longitudinal direction of the bolster is provided with the first drawing pull bar mounting interface being connected with drawing pull bar, an extension is extended downwardly from the center of the lower surface of the bolster, the bolster is connected by slew gear with car body, and the both sides in the cross-car of the bolster are symmetrically arranged with shock absorber mounting seat.Not only overall structure simple and compact, and can improve the overall construction intensity of bolster of the invention, improves its integrated carrying ability.Meanwhile connected between bolster and car body by slew gear, the small curve negotiation ability of bogie is drastically increased, and the bolster structure also helps the height for reducing floor, and then beneficial to setting of getting on or off the bus.
Description
Technical field
The present invention relates to a kind of low-floor rail vehicle bogie, while it is related to one kind in low-floor articulated track vehicle
The bolster structure of upper installation, belongs to rail vehicle manufacturing technology field.
Background technology
Low-floor urban rail vehicle plays more and more important effect in many urban transportations, and in Low-floor urban rail vehicle
In, bogie directly determines the stability of vehicle operation and multiplied as most important structure member, its structure and parameters
The comfortableness of seat.The bogie of existing Low-floor urban rail vehicle generally has that small curve negotiation ability is poor, the higher difficulty of floor
With the setting and the problems such as draw-gear heaviness of getting on or off the bus.With the continuous progress of city rail vehicle, the requirement to city rail vehicle is more next
It is higher, it is therefore desirable to which that floor can be reduced beneficial to get on or off the bus setting, and simple and compact for structure, curve negotiating energy by providing one kind
Power low-floor articulated track vehicle bogie suspension device that is strong, in light weight, improving operation vehicle performance.
In low-floor articulated track vehicle, it will typically be connected using bolster between car body and the framework of bogie
Connect, bolster is primarily subjected to and transmitted vertical force, cross force and longitudinal force, and the bolster of existing Low-floor urban rail vehicle is mainly by upper
The box structure that the steel plates such as cover plate, lower cover, side plate and various bearings are welded, structure is more complicated, easily becomes
Shape and the phenomenon of fatigue fracture, meanwhile, bolster is installed in the top of whole framework, has relatively raised the height of floor,
It is unfavorable for setting of getting on or off the bus.
The content of the invention
Present invention is primarily aimed at solve the above problems and deficiency, there is provided a kind of simple and compact for structure, curve negotiating energy
Power is strong, and can reduce the low-floor rail vehicle truck bolster structure of height of floor from rail top, while provides one kind and be provided with this and shake
Rest the head on the bogie of structure.
To achieve the above object, the technical scheme is that：
A kind of low-floor rail vehicle truck bolster structure, including bolster, slew gear is provided with the bolster,
The bolster is in the shape of the letter V structure, and the side on the car body longitudinal direction of the bolster is provided with first be connected with drawing pull bar and led
Be pulled bar mounting interface, an extension is extended downwardly from the center of the lower surface of the bolster, the bolster is by returning
Rotation mechanism is connected with car body, and the both sides in the cross-car of the bolster are symmetrically arranged with shock absorber mounting seat.
Further, the bolster, the first drawing pull bar mounting interface, extension, shock absorber mounting seat are integrated casting knot
Structure.
Further, the shock absorber mounting seat is step-like structure, and construction opening is provided with the step of inner side,
The bolt hole for installing lateral damper is provided with the side wall of construction opening, is provided with the step in outside vertical for installing
To the bolt hole of shock absorber.
Further, the first drawing pull bar mounting interface is the structure of split, is set respectively on two parts of split
It is equipped with semicircular opening and the first installing port for being used to install drawing pull bar end of circle is collectively constituted after fastening, two
Part is bolted to connection.
Further, the top half of the first drawing pull bar mounting interface be the bolster side set it is multiple to
The arch hatch frame of lower protrusion, the latter half of the first drawing pull bar mounting interface is each independently installed multiple installations
Block, the side wall of corresponding each arch opening both sides are respectively fixedly connected with a mounting blocks.
Further, the upper surface of the first drawing pull bar mounting interface is the portion that the bolster upper table is recessed downwards
Point.
Further, lift is installed on the bolster, the bottom of the lift and the curb girder of framework connect.
Further, the lift is more lifting bars, and the quantity of the lifting bar is relative with the quantity of secondary spring
Should, a lifting bar is installed respectively inside each secondary spring.
Further, the first mounting groove of upward indent, the top of secondary spring are provided with the lower surface of the bolster
It is embedded to be arranged in the first mounting groove.
The present invention another technical scheme be：
A kind of bogie, bolster structure as described above is installed.
To sum up content, a kind of low-floor rail vehicle truck bolster structure of the present invention and bogie, it is not only whole
Body is simple and compact for structure, and can improve the overall construction intensity of bolster, improves its integrated carrying ability.Meanwhile bolster with
Connected between car body by slew gear, drastically increase the small curve negotiation ability of bogie, and the bolster structure is also
The height of floor is advantageously reduced, and then beneficial to setting of getting on or off the bus.
Brief description of the drawings
Fig. 1 is rail vehicle structure schematic diagram of the present invention；
Fig. 2 is bogie suspension draw-gear structural representation of the present invention；
Fig. 3 is the floor map of bogie suspension draw-gear structure of the present invention；
Fig. 4 is Fig. 3 A direction views；
Fig. 5 is drawing pull bar structural representation of the present invention；
Fig. 6 is Fig. 5 top view；
Fig. 7 is bolster structural representation of the present invention；
Fig. 8 is Fig. 3 A-A sectional views；
Fig. 9 is Fig. 3 B-B sectional views；
Figure 10 is Fig. 3 C-C sectional views；
Figure 11 is Fig. 3 I partial enlarged drawing；
Figure 12 is the mounting structure schematic diagram of lateral damper and vertical damper of the present invention；
Figure 13 is dust cover structure schematic diagram of the present invention.
As shown in figure 1 to figure 13, bogie 1, car body 2, slew gear 3, framework 4, draw-gear 5 is hung, takes turns to 6, pacify
Fill beam 7, curb girder 8, end carriage 9, bolster 10, pin-and-hole 11, primary spring 12, secondary spring 13, lateral damper 14, vertical damper
15, drawing pull bar 16, pull bar 16a, ball pivot 16b, connecting seat 16c, bolt hole 17, the first drawing pull bar mounting interface 18, first
Installing port 19, bolt 20, pin-and-hole 21, installing plate 22, bolt 23, slewing bearing 24, accommodating cavity 25, bolt 26, bolt hole
27, bolt 28, oil filling mechanism 29, oil fuel tube 30, cavity 31, shock absorber mounting seat 32, extension 33, opening 34, horizontal backstop
35, wearing layer 35a, rubber layer 35b, backplane level 35c, bolt 36, lifting bar 37, steady pin 38, the second mounting groove 39, second leads
Be pulled bar mounting interface 40, construction opening groove 41, the second installing port 42, bolt 43, shock absorber body 44, head rod 45,
Second connecting rod 46, oscillating bearing 47, connecting shaft 48, connecting rod 49, dust cover 50, opening 51, opening 52, upper padding plate 53, upper bullet
Spring positioning convex 53a, lower bolster 54, lower spring positioning convex 54a, interior spring 55, outer spring 56, the first mounting groove 57, installation portion 58,
Protective cover 59, lifting mounting hole 60, upper lifting mounting seat 61, lifting installation sheath 62, connecting pin 63, bolt 64, connecting seat 65,
Lower lifting mounting seat 66, lifting opening 67, bayonet socket 68, nut 69, sealing ring 70, stopper section 71, erecting bed 72, mounting groove 73,
Band 74, construction opening 75, bolt hole 76, lateral damper fixed seat 77, positioning convex 78, detent 79, installing plate 80.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of low-floor articulated track vehicle bogie suspension draw-gear, is hinged installed in low-floor
On bogie 1 below the drivers' cab of formula rail vehicle and the cephalomere compartment adjacent with drivers' cab, i.e., installed in headstock position
On bogie 1, connected between the bogie 1 and the car body 2 in cephalomere compartment by slew gear 3.
As shown in Fig. 2 bogie 1 include framework 4, suspension draw-gear 5, wheel to 6, motor (not shown),
Brake etc., wherein, motor uses four, drives four wheels respectively, and four motors and brake are fixedly mounted
On the mounting rail 7 of the both sides of framework 4, it is arranged so as to advantageously reduce the height of floor.
As shown in Fig. 2 framework 4 includes two curb girders, 8, two end carriages 9 and two mounting rails 7, the transverse direction of two curb girders 8
Outside on (referring to width of the carbody direction) is respectively arranged to install the mounting rail 7 of motor and brake, is installing
The Holder for hanging household utensiles of magnetic rail brake device is provided with beam 7.In the present embodiment, curb girder 8 is integrated casting beam, and mounting rail 7 is box-girder, by
Top plate, bottom plate and side plate splicing are welded, and top plate, bottom plate and side plate use stainless steel plate, curb girder 8 and the expansion of mounting rail 7
Body is π shape structures, and curb girder 8 connects with the butt welding of mounting rail 7, and mounting rail 7 forms " II " shape structure after being welded with curb girder 8.Two
Individual end carriage 9 is symmetricly set on both sides of two curb girders 8 on car body longitudinal direction (referring to length over ends of body direction), and end carriage 9 is " mouth "
Glyph framework beam, end carriage 9 are integrated casting beam, also fixed between end carriage 9 and curb girder 8 for butt welding, on the one hand can be strengthened
The integrated carrying ability and structural strength of end carriage 9, welding capacity on the other hand can be reduced again, reduce processing technology difficulty, improve
The manufacturability of framework 4.
Framework 4 uses the structure of steel plate and casting Combination Welding, minimizes the welding interior stress of structure, and can be a large amount of
Reduce welding capacity, improve the processing performance and packaging efficiency of framework, 4 integrally-built intensity of framework, rigidity, anti-fatigue performance and
Bearing capacity is all largely increased, and can preferably meet the safe operation requirement of rail vehicle.
As shown in Figures 2 to 4, suspension draw-gear 5 includes a system's bullet of drawing pull bar 16, eight of bolster 10, two
The lateral damper 14 of secondary spring 13, two of spring 12, four and two vertical dampers 15 etc..
In the present embodiment, the overall structure in " V " font of bolster 10, bolster 10 is connected with car body 2 by slew gear 3
Connect, the center of the centre of gyration between bolster 10 and car body 2 and framework 4 is not on same center line, between two center lines
Distance is 350mm.So, after bogie is arranged on car body 2, rotated with the centre of gyration of biasing, the most knot of bogie
Structure is all placed on the front of car body 2, that is, is placed on the underlying space of drivers' cab, so that bogie more takes the sky of drivers' cab
Between, a space-consuming in car compartment is relatively reduced, is so more beneficial for improving the comfortableness taken, also has to a certain extent
Beneficial to the handling capacity of passengers for improving compartment.Moreover, bolster 10 is connected with car body 2 by slew gear 3, the Chinese yeast of vehicle can also be improved
Line handling capacity, and height of floor from rail top can be greatly reduced, set beneficial to getting on or off the bus, vehicle drive performance also obtains larger carry
Height, while also it is beneficial to the abrasion for reducing wheel and track.
Four secondary springs 13 of setting, four secondary springs 13 are right in pairs between the lower section of bolster 10 and the curb girder 8 of framework 4
Title is arranged on both sides of the bolster 10 in cross-car.Set between two end carriages 9 and axle bridge (not indicated in figure) of framework 4
There are eight primary springs 12, i.e., a primary spring 12 is respectively mounted at each angle of the end carriage 9 of " mouth " font.In the car of bolster 10
A lateral damper 14 and a vertical damper 15 are installed in both sides in body transverse direction respectively, lateral damper 14 and vertical subtract
Shake oscillation crosswise and vertical vibration of the device 15 to car body of decaying, improve the comfortableness of seating, lateral damper 14 and vertical subtract
The other end of device 15 of shaking is arranged in the opening that is surrounded by mounting rail 7 and curb girder 8 and is fixed on the side plate of the inner side of mounting rail 7,
This mounting structure make it that the overall structure of bogie is compacter, is more favorable to reduce the height of floor.
As shown in Figures 2 to 4, the side of bolster 10 is connected by two drawing pull bars 16 with the end carriage 9 of the one end of framework 4,
Two drawing pull bars 16 are arranged on the centre of two curb girders 8 of framework 4, and bolster 10 and the cloth of drawing pull bar 16 postpone overall in flat
The structure of shape, it can further reduce the height on floor.
Side of the bolster 10 on car body longitudinal direction is connected by two drawing pull bars 16 with the end carriage 9 of the one end of framework 4, not only
Traction and the transmission of brake force when vehicle operation can be better achieved, carrying is vertical, transverse direction, longitudinal loading, and bolster 10 passes through two
The parallel drawing pull bar 16 of root is connected with the end carriage 9 of framework 4, and anti-side rolling can also be played using two parallel drawing pull bars 16
The effect of torsion bar, make vehicle operation more steady, and eliminate anti-rolling device separately installed on existing bogie, simplify
The structure of bogie.
As shown in Figure 5 and Figure 6, the structure of drawing pull bar 16 includes middle pull bar 16a and the ball pivot 16b at both ends, draws
Bar 16a two ends are taken the shape of the letter U structure, and two ball pivot 16b are inserted into U-shaped structure by fastener and pull bar 16a respectively
It is fixedly connected.Ball pivot 16b is made up of the ball pivot axle at center and the ball pivot set of outer layer, and ball pivot axle and ball pivot set are cut with scissors by sphere curved surface
Cooperation is connect, ball pivot set is connected with pull bar 16a.The connecting seat of each installation one 16c on each ball pivot 16b two ball pivot axles, two
Individual connecting seat 16c is symmetricly set on end ball pivot 16b both sides, and connecting seat 16c is the elastomeric material of cylinder, and its center has
Mounting hole (does not indicate) in figure, coordinates with ball pivot 16b ball pivot axle and fixes.
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 7, in the present embodiment, bolster 10 is the structural member of integral casting forming, not only may be used
To ensure its bulk strength and rigidity, welding stress caused by welding structure is avoided, greatly improves the bearing capacity of bolster 10, also
The thickness and weight of bolster 10 can be reduced, beneficial to the height of reduction floor, while also realizes lightweight beneficial to vehicle.
As shown in fig. 7, be provided with the side (i.e. the inner side of the angle of " V " character form structure) of bolster 10 towards end carriage 9 with
The first drawing pull bar mounting interface 18 that drawing pull bar 16 connects, is dismounted for convenience, and the first drawing pull bar mounting interface 18 is adopted
With the structure of two-piece unit, top half and the integrally casting shaping of bolster 10 of the first drawing pull bar mounting interface 18, first leads
Be pulled bar mounting interface 18 top half be the side of bolster 10 set multiple downward projection of arch hatch frames, with profit
In the setting height(from bottom) for integrally reducing drawing pull bar 16, and then beneficial to the height for reducing floor.The quantity of arch opening and traction
The quantity of pull bar 16 is corresponding, and two drawing pull bars 16 are installed in the side of bolster 10, so the quantity of the arch opening of the side of bolster 10
For two, formed in three side walls of two arch openings and be respectively provided with downwardly open semicircle opening, the first drawing pull bar peace
The latter half of attaching mouth 18 is four pieces of each independently installed mounting blocks, each fixation of side wall of corresponding each arch opening both sides
A mounting blocks are connected, middle side wall is fixedly connected with two mounting blocks, also had respectively on four mounting blocks of the latter half
There is the semicircle opening of upward opening, formed after two part snap-fit docking up and down of the first drawing pull bar mounting interface 18 complete
The first circular installing port 19, the connecting seat 16c at the both ends of drawing pull bar 16 is separately fixed at two the first relative installing ports
In 19, two parts up and down for forming each first installing port 19 are fixedly connected by four bolts 20.
In the present embodiment, have on the upper surface of bolster 10 to the part of lower recess, the first drawing pull bar mounting interface
18 upper surface is the part that the upper table of bolster 10 is recessed downwards, and such purpose reduces drawing pull bar 16 also for overall
Setting height(from bottom), beneficial to reduce floor height.
Upper and lower two parts of first drawing pull bar mounting interface 18 are after fastening by the connecting seat of the end of drawing pull bar 16
16c is tightly fixed in the first installing port 19, and finally upper and lower two parts are fixed together with four bolts 20 and realize traction
The fixed installation of pull bar 16.As shown in Figure 5 and Figure 6, fixed for convenience with the first drawing pull bar mounting interface 18, in each company
A pin-and-hole 21 is provided with joint chair 16c excircle, as shown in fig. 7, correspondingly in the upper of the first drawing pull bar mounting interface 18
Be also provided with a pin-and-hole 11 in part or lower part, during installation in connecting seat 16c pin-and-hole 21 one alignment pin of installation, led with first
The pin-and-hole 11 being pulled on bar mounting interface 18 coordinates, and drawing pull bar 16 is accurately installed, and can improve installation effectiveness.
As shown in fig. 7, in the present embodiment, in order to strengthen the fixing intensity of the first drawing pull bar mounting interface 18, make traction
Pull bar 16 can be fixedly secured, and one piece of installing plate 22, each two phase are additionally provided with the top of the first drawing pull bar mounting interface 18
Two bolts 20 that neighbour is set are correspondingly arranged one piece of installing plate 22.Installing plate 22 is in step-like structure, is set on subordinate's step
There are two bolts hole, installing plate 22 to be fixed on to the top half of the first drawing pull bar mounting interface 18 through bolt 23
On, two bolts hole (not indicated in figure) are provided with higher level's step, two bolts hole correspond to first with lower section respectively
Bolt hole insertion on drawing pull bar mounting interface 18, bolt 20 is also cross the bolt on the first drawing pull bar mounting interface 18
The bolt hole on higher level's step on hole and installing plate 22, which fixes two parts up and down of the first drawing pull bar mounting interface 18, to be connected
It is connected together.
As shown in Fig. 2, Fig. 3 and Fig. 9, the second drawing pull bar mounting interface 40 is installed with the side wall of end carriage 9,
Four the second drawing pull bar mounting interfaces 40 are installed altogether, four the second drawing pull bar mounting interfaces 40 are disposed side by side in side wall
In the side wall of end carriage 9, middle two the second drawing pull bar mounting interfaces 40 are closely packed together fixed or are integral type structure, four
Second drawing pull bar mounting interface 40 is used for four connecting seat 16c for fixing two ends of drawing pull bar 16.
Second drawing pull bar mounting interface 40 is designed to Split type structure, is divided into left and right two parts, has one on each part
Semicircle is open, and complete second installing port 42 is formed after two part snap-fits, for accommodating the connection of the end of drawing pull bar 16
Seat 16c.It is one of it is upper there is positioning convex 78, correspondingly there is detent 79 in the sidepiece of end carriage 9, by second during installation
Positioning convex 78 on drawing pull bar mounting interface 40 is stuck in the detent 79 of end carriage 9, by the two of the end of drawing pull bar 16
Individual connecting seat 16c is correspondingly placed into the semicircle opening of both sides, then by another piece of fastening, and with four bolts 43 by two pieces of fixations
Link together, and then the connecting seat 16c of the end of drawing pull bar 16 is fixed.
Corresponding four the second drawing pull bar mounting interfaces 40 are provided with three installations and opened on a side of " mouth " font end carriage 9
Mouth groove 41, osculum is provided with the bottom of each construction opening groove 41, construction opening groove 41 can be in the upper and lower surface of end carriage 9
Three are each provided with, is respectively used to be fixedly connected with the two rows bolt 43 of the second drawing pull bar mounting interface 40, installation is opened
Mouth groove 41 can also use the hatch frame of up/down perforation.The adjacent bolt 43 of each two is corresponded in construction opening groove 41 to set
One installing plate 80, have on installing plate 80 two internal thread holes, bolt 43 inserted from side after its afterbody twisted with installing plate 80
Fasten, you can complete the fixation of drawing pull bar 16, can not only ensure the overall construction intensity of end carriage 9, also make it that operation is non-
It is often simple and convenient, installation effectiveness greatly improved.As during the first drawing pull bar mounting interface 18 of installation, connecting during installation
Pin-and-hole in seat 16c pin-and-hole on installation one alignment pin, with the second drawing pull bar mounting interface 40 coordinates, and enables drawing pull bar 16
Enough accurate installations, and installation effectiveness can be improved.
In the present embodiment, in the connecting seat 16c of the end set cylinder of drawing pull bar 16, installed with the first drawing pull bar
The first circular installing port 19 of the drawing pull bar mounting interface 40 of interface 18 and second and the second installing port 39, which coordinate, to be fixed, longitudinal direction
Transmit power to realize by complete circular binding face, can not only improve longitudinal transmission capacity, and abrasion can be mitigated, simultaneously
The both ends of drawing pull bar 16 set ball pivot, make it have less lateral stiffness, meet transverse direction big between car body and bogie
Displacement and length travel, longitudinal traction ability is improved, and certain elastic deformation can occur when sidewindering, thus played
The effect of anti-side rolling, anti-side rolling ability is improved, further increase the overall performance of draw-gear.
As shown in Figure 7 and Figure 8, slew gear 3 includes slewing bearing 24, the center of the upper surface of bolster 10 have to
The accommodating cavity 25 of lower indent, the installation slewing bearing 24 in the accommodating cavity 25, the outer ring of slewing bearing 24 pass through multiple
Bolt 26 is fixedly connected with bolster 10, and accommodating cavity 25 can protect slewing bearing 24, can improve revolving support axle again
Hold 24 bearing capacity.One bolt hole 27 that runs through of circle is set on bolster 10, and bolt hole 27 is counter sink, and multiple bolts 26 are the bottom of from
Portion is correspondingly inserted into bolt hole 27 and is fixedly connected with slewing bearing 24, positioned at counter sink after the head installation of bolt 26
Inside, such purpose are to install for convenience, avoid the head of bolt 26 from extending out to the outside of bolster 10, also function to guarantee
Effect.The inner ring of slewing bearing 24 is fixedly connected with vehicle body bottom frame (not shown) by multiple bolts 28, convenient behaviour
Make personnel to fix vehicle body bottom frame and slewing bearing 24 by outer ring bolt 28 from the top of vehicle body bottom frame.By turning round branch
Support bearing 24 carries vertical, vertical and horizontal load, and slewing bearing 24 can realize 360 degree of rotations, realize surface car
The requirement of too small curve (such as 25m), improve the small curve negotiation ability of vehicle.
As shown in Figure 7 and Figure 8, a set of oil filling mechanism 29 is also equipped with bolster 10, for for slewing bearing 24
Oiling, to ensure the normal work of slewing bearing 24.Oil filling mechanism 29 includes one group of pump nozzle, in the present embodiment, to ensure
Oiling effect, lubricating oil is distributed more uniformly across in slewing bearing 24, be provided with eight pump nozzles, eight pump nozzles altogether
Eight oil fuel tubes 30 are connected respectively, and the end of eight oil fuel tubes 30 is separately installed with a straight-through type pipe joint, and oil fuel tube 30 is logical
Cross the connection of straight-through type pipe joint and slewing bearing 24.
The lamina tecti (not shown) of one activity is installed on the vehicle body bottom frame above corresponding slewing bearing 24,
When needing oiling, the pump nozzle of lower section can be spilt by opening lamina tecti, and oiling terminates rear top cover plate, not only can be with
Realize and oiling is carried out to slewing bearing 24 at any time, also facilitate simple and direct, also allow for regular maintenance.
As shown in Figure 8 and Figure 9, an extension 33, extension are extended downwardly from the center of the lower surface of bolster 10
33 are integrally formed with bolster 10.Corresponding extension 33 is provided with an opening inserted for extension 33 on the end carriage 9 of framework 4
34, opening 34 is arranged in stopping seat (not shown), and only quick-fried connect of joint chair is fixed on end carriage 9.
As shown in figure 8, two horizontal backstops 35 are installed in the side wall of the both lateral sides of opening 34, two horizontal backstops 35
Stretched out simultaneously from the direction of the two lateral lower section extensions 33 of bolster 10, the extension 33 of the lower section of bolster 10, which stretches to two transverse directions, to be stopped
Between gear 35, and horizontal backstop gap is left between horizontal backstop 35.Play in vehicle operation and preferably laterally stop
The effect of gear, to limit the lateral displacement that vehicle exceeds the normal free degree, to avoid vehicle from being sent out by some small curve radius
The dangerous working conditions such as raw rollover.
In the present embodiment, horizontal backstop 35 is made up of three-decker, respectively wearing layer 35a, rubber layer 35b and backplane level
35c, wearing layer 35a are located at the top layer contacted with the extension 33 of bolster 10, pass through wearing layer 35a and the extension 33 of bolster 10
Contact, wearing layer 35a use the nylon material of high abrasion characteristic, have the characteristics of wear-resisting using nylon material, improve and laterally stop
The service life of gear 35.Rubber layer 35b is arranged between wearing layer 35a and backplane level 35c, rubber layer 35b and backplane level 35c sulphur
Change is integrally formed, and wearing layer 35a is together with rubber layer 35b gluing knots.Backplane level 35c is fixed on end carriage 9 by bolt 36
On opening 34 side wall on.As shown in figure 8, being provided with mounting hole in the side wall of end carriage 9, passed through by bolt 36 on end carriage 9
Mounting hole be fixedly connected with the horizontal backplane level 35c of backstop 35, and then horizontal backstop 35 is fixed on end carriage 9.
The horizontal backstop 35 ensure that good stiffness curve in the case where ensureing the elastic characteristic requirement of horizontal backstop 35
Can, meet that lateral displacement is reduced to greatest extent under most severe operation situation, significantly reduce vehicle it is traversing when the rolling that brings
It is dynamic, running stability is improved, adds the comfortableness of seating, and simple in construction, dependable performance, durability characteristics are strong.
When installing horizontal backstop 35, it is necessary to which existing car is adjusted between the top of horizontal backstop 35 and the extension 33 of bolster 10
Horizontal backstop gap size, pad one or more adjusting pads again between the backplane level of horizontal backstop 35 and the side wall of end carriage 9
Piece, it is easy to adjust quick.
A longitudinal stopper section is also respectively stretched out to the direction of extension 33 in two side walls on the inside longitudinal direction of opening 34,
Longitudinal load-bearing is played a part of in longitudinal stopper section, and when drawing pull bar 16 fails, longitudinal stopper section coordinates with extension 33 to be remained to
Drive vehicle operation.
As shown in Figures 2 and 3, four secondary springs 13, four two systems are set between bolster 10 and the curb girder 8 of framework 4
The lateral symmetry both sides that are arranged on extension 33 of the spring 13 along framework 4, the structure of four secondary springs 13 are identical.
As shown in Figure 10, each secondary spring 13 forms by the spring of upper padding plate 53, lower bolster 54 and centre, middle
Spring section is made up of, not only compact overall structure, stability is good, may be used also using double steel coil springs interior spring 55 and outer spring 56
To improve the stability of vehicle operation, meet the requirement of big volume of passenger traffic carrying, it is tight especially suitable for space between car body and bogie
The low-floor city railway vehicle opened.
Upper padding plate 53 is made up of the rubber layer of upper strata metallic plate, lower metal plate and centre, rubber layer and upper strata metallic plate,
Lower metal plate sulfides, and upper padding plate 53 has a centre bore.Corresponding upper padding plate 53 is set on the lower surface of bolster 10
First mounting groove 57 of one upward indent, there is downwardly projecting annular installation portion 58 at the center of the first mounting groove 57,
Installation portion 58 merges with the centre bore matching of upper padding plate 53 to be inserted into centre bore, plays the fixed effect of positioning, the first installation
The diameter of groove 57 coordinates with upper padding plate 53, upper padding plate 53 is stuck in the first mounting groove 57 and is realized and fix, while centre bore card
At installation portion 58, and then being fixedly connected for upper padding plate 53 and bolster 10 is realized, need not be used between upper padding plate 53 and bolster 10
Traditional bolted mode, makes installing/dismounting more simple and convenient, makes installing/dismounting more simple and convenient, reduces fastening
The operation and maintenance of part, and make the structure of secondary spring 13 more compact so that the device be more suitable for car body and bogie it
Between the nervous low-floor rail vehicle in space.
There is downwardly projecting upper spring positioning convex in a ring in the lower surface of the lower metal plate of upper padding plate 53
Between interior spring 55 and outer spring 56, upper spring positioning convex 53a is metallic plate and and lower floor by 53a, upper spring positioning convex 53a
Metallic plate welds together or is integrally formed.
As shown in Figure 10, each secondary spring 13 is corresponded on the curb girder 8 of framework 4 and is provided with the second mounting groove 39, second
Mounting groove 39 is embedded in the inside of curb girder 8 or is arranged on by the way of sinking on curb girder 8, the second mounting groove 39 and curb girder 8 one
Body casting.The diameter of second mounting groove 39 coordinates with lower bolster 54, lower bolster 54 is stuck in the second mounting groove 39 interior and real
Now fix.Lower bolster 54 is made up of positioning seat and adjusting pad, and positioning seat is metallic plate, equally has one on the upper surface of positioning seat
Lower spring positioning convex 54a in a ring protruding upward, lower spring positioning convex 54a between interior spring 55 and outer spring 56,
Lower spring positioning convex 54a is metallic plate, fits together or is integrally formed with positioning seat.After installation, lower bolster 54 fixes
Being fixedly connected between secondary spring 13 and curb girder 8 is realized in the bottom of the second mounting groove 39 of framework 4, lower bolster 54 and curb girder 8 it
Between equally without using traditional bolted mode, make installing/dismounting more simple and convenient, reduce the use of fastener
And maintenance, also further make the structure of secondary spring 13 more compact.The second mounting groove 39 on curb girder 8, it is turbination structure,
While fixed secondary spring 13, it can also avoid when vehicle is run, the inwall of the mounting groove 39 of secondary spring 13 and second
Collision.In the present embodiment, the top and bottom of secondary spring 13 is respectively embedded into bolster 10 and curb girder 8, this structure
The setting height(from bottom) of bolster 10 can be reduced, and then can further reduce the height of floor.
On the one hand upper spring positioning convex 53a and lower spring positioning convex 54a serves damping effect, on the other hand, this
Kind " projection " structure separates interior spring 55 and outer spring 56, when vehicle is needed by small curve, i.e., when secondary spring 13 produces greatly
During displacement, reduce the possibility of interior spring 55 and outer spring 56 collision, efficiently avoid the unstability of secondary spring 13.
The adjusting pad of lower bolster 54 is divided into two kinds of different structures, and one kind is interior spring adjusting pad, and interior spring adjusting pad is rubber blanket,
Inner ring installed in lower spring positioning convex 54a is the bottom of interior spring 55, the tune for the spring 55 in ordinance load compression relative superiority or inferiority
Whole, another kind is outer spring adjusting pad, and outer spring adjusting pad is rubber blanket, is outer spring installed in lower spring positioning convex 54a outer ring
56 bottom, high with the compression of spring in guarantee 55 and outer spring 56 under same service load for the adjustment of outer spring 56, Jin Erbao
Operating steadily between card car body and bogie.Meanwhile upper padding plate 53 significantly reduces steel spring using the pliability of rubber layer
The vibration and impact brought.
Tubular protective cover 59 is installed between the first mounting groove 57 and the second mounting groove 39, secondary spring 13 is enclosed in
In protective cover 59, protective cover 59 is preferably made up of the nitrile rubber integrated vulcanizing of oil resistant, fine corrosion resistance.Protective cover 59 by
Upper Access Division, middle cylindrical part and lower Access Division composition, middle cylindrical part use wavy shaped configuration, upper Access Division and lower Access Division
It is sealedly and fixedly connected respectively on the first mounting groove 57 and the second mounting groove 39, is not only advantageous to the peace installation and dismantling of protective cover 59
Unload, also secondary spring 13 is sealed in protective cover 59, prevent greasy dirt, water droplet etc. from penetrating into the framework of framework, cause corrosion.
In addition, in vehicle operation, dustproof construction into " wave " shape, realizes folding characteristic in itself, to adapt to steel spring under different loads
The sealing of deformation.
Vehicle because circuit question can produce vertical vibration, and then can produce vertical impact in high-speed cruising to car body,
In order to avoid overshoot phenomenon occurs, the maximum vertical vibration distance of limitation car body, gauge is avoided exceeding, as shown in fig. 7, this implementation
In example, lift is additionally provided between bolster 10 and framework 4, lift can not only limit vertical the shaking of car body maximum
Dynamic distance, while bogie integral lifting can also be played a part of.
As illustrated in fig. 7 and fig. 10, lift is four lifting bars 37 altogether, and the main body of lifting bar 37 is a rigid cylinder
Body, between bolster 10 and the curb girder 8 of framework, four lifting bars 37 are symmetricly set on the both sides in the transverse direction of bolster 10, this
In embodiment, four lifting bars 37 are preferably separately mounted to the centre of four secondary springs 13, i.e. lifting bar 37 passes through interior spring
55 center, the top of lifting bar 37 are connected by upper connection component with bolster 10, and the bottom of lifting bar 37 passes through lower connection group
Part is connected with the curb girder 8 of framework 4.Using four lifting bars 37, it can not only ensure bonding strength during lifting, while can protect
Balance during lifting is held, lifting bar 37 is set through secondary spring, while lifting effect is reached so that overall lifting dress
The structure put is compacter, has reasonably used secondary spring internal structural space, reduces the occupancy in lift space, makes
The device low-floor city railway vehicle nervous especially suitable for space between car body and bogie.Moreover, carried using four
Suspension rod 37, it is ensured that when there is the fracture of lifting bar 37, other lifting bars 37 can still ensure overall lifting.
As illustrated in fig. 7 and fig. 10, upper connection component includes upper lifting mounting seat 61, lifting installation sheath 62, connecting pin 63
And connecting seat 65, the lifting mounting hole 60 run through, lifting installation are provided with the center of the first mounting groove 57 on bolster 10
Hole 60 is a T-shaped counterbore, and the upper lifting mounting seat 61 that vertical section is in π shapes, the top of upper lifting mounting seat 61 are installed in T-shaped counterbore
Portion is stuck in lifting mounting hole 60, and a circle sealing ring is additionally provided between upper lifting mounting seat 61 and the inwall of bolster 10, connection
Seat 65 substantially be in inverted T-shaped, in the supreme lifting mounting seat 61 of partial insertion of its top protrusion, will above be carried by connecting pin 63
Hang mounting seat 61 to be fixed together with connecting seat 65, the top of lifting bar 37 is fixed on connecting seat 65 by steady pin 38
On, lifting installation sheath 62 is socketed with the periphery of connecting seat 65 and upper lifting mounting seat 61, the bottom of sheath 62 is installed in lifting
Portion is fixedly connected by multiple bolts 64 with the top of lifting bar 37.
Lower connection component includes lower lifting mounting seat 66, and lower lifting mounting seat 66 is removably mounted at the second peace of curb girder 8
The bottom of tankage 39, lower lifting mounting seat 66 are arranged on the centre of interior spring 55, and it is hollow structure protruding upward.Lower lifting
The bottom of mounting seat 66 has outwardly directed multiple erecting beds 72, and the bottom of the second mounting groove 39 is provided with mounting groove 73,
Erecting bed 72 is stuck in the fixed installation that lower lifting mounting seat 66 is realized in mounting groove 73.Opened on the roof of lower lifting mounting seat 66
There is lifting opening 67, the bottom of lifting bar 37 enters in lower lifting mounting seat 66 through lifting opening 67, the bottom of lifting bar 37
One bayonet socket 68 is installed, the diameter of bayonet socket 68 is more than the diameter of lifting opening 67, had at the central through hole of bayonet socket 68 step-like
Structure, integral stopper section 71 raised in a ring, the step-like structure card of bayonet socket 68 are correspondingly provided with lifting bar 37
On stopper section 71, there is external screw thread on the lifting bar 37 below bayonet socket 68, fasten a nut 69 thereon, bayonet socket 68 is defined
Between stopper section 71 and nut 69, a circle sealing ring 70 is additionally provided with the inner ring of bayonet socket 68.Bayonet socket 68 and lifting opening 67
Between there is certain distance, this distance be prevent overshoot distance, after installation, if bolster 10 moves up on vertical,
The bayonet socket 68 of the bottom of lifting bar 37 may be stuck at lifting opening 67, and then can avoid overshooting.Meanwhile the lifting bar 37 is rising
When hanging, bayonet socket 68 is stuck on framework 4, realizes the integral lifting of bogie and car body, whole lift installation, dismounting are very
It is convenient.Lower lifting mounting seat 66 is arranged on the centre of interior spring 55, while playing a part of preventing overshoot and overall lifting, also
It is possible to prevente effectively from secondary spring 13 produces larger rock in vehicle operation.
As shown in Fig. 2, Fig. 3, Fig. 7, Figure 11, Figure 12, one is each provided with positioned at both sides of the bolster 10 in cross-car
Outwardly directed shock absorber mounting seat 32, shock absorber mounting seat 32 are symmetricly set on the outside of secondary spring 13, shock absorber installation
Seat 32 and the integrally casting shaping of bolster 10.One lateral damper 14 is installed in each shock absorber mounting seat 32 and one hangs down
To shock absorber 15, lateral damper 14 and vertical damper 15 are fixedly mounted in shock absorber mounting seat 32 simultaneously by bolt.
Shock absorber mounting seat 32 is in step-like structure in the sidepiece of bolster 10, is opened in the position of the first order step of inner side
There is a construction opening 75, bolt hole 17 is provided with the side wall of construction opening 75, for being bolted lateral damper 14,
Another bolt hole 76 is provided with the position of outermost second level step, for being bolted vertical damper 15.Subtract
The structure for device mounting seat 32 of shaking is not only simple, and is easy to the installation and removal of lateral damper 14 and vertical damper 15.
As shown in figure 12, lateral damper 14 is identical with the structure of vertical damper 15, by shock absorber body 44, first
Connecting rod 45, the second connecting rod 46 form, and have four mounting holes on the shell of shock absorber body 44, and vertical damper 15 subtracts
Device body 44 shake by being bolted directly on the inner side side plate of mounting rail 7, the shock absorber body 44 of lateral damper 14 is first
It is bolted in lateral damper fixed seat 77, lateral damper fixed seat 77 is bolted on mounting rail 7 again
Inner side side plate on, be provided with lateral damper fixed seat and vertical damper fixed seat in the side wall of mounting rail 7, first connects
One end of extension bar 45 is fixedly connected with shock absorber body 44, and the other end is connected with the second connecting rod 46, the second connecting rod 46 it is another
One end is connected with the shock absorber mounting seat 32 of the sidepiece of bolster 10.The both ends of second connecting rod 46 and head rod 45 and shock absorber
Connected between mounting seat 32 by an oscillating bearing 47.The outer ring of oscillating bearing 47 is connected with the second connecting rod 46, joint shaft
47 inner ring installation one connecting shaft 48 of connection is held, connecting shaft 48 stretches out the bolt hole 76 for being inserted into shock absorber mounting seat 32 from side
In bolt hole 17, and it is bolted.Attachment structure between second connecting rod 46 and the first head rod 45 is therewith
It is identical.
As shown in figure 12, in the present embodiment, the second connecting rod 46 is divided into two sections, centre is connected by one section of connecting rod 49,
It is connected through a screw thread between connecting rod 49 and two section of second connecting rod 46, this structure can facilitate the second connecting rod 46 and both ends
Head rod 45 is fixedly connected with lateral damper fixed seat or vertical damper fixed seat.
As shown in figure 12, respectively it is cased with a dust cover 50 in the outside of the oscillating bearing 47 at the both ends of the second connecting rod 46.Such as
Shown in Figure 13, dust cover 50 is made up of elastomeric material, and with two openings 51 and openings 52, the direction of opening 51 and opening 52 is in
90 degree, an opening 51 is used to cover the second connecting rod 46, and another opening 52 is used to cover the company being connected with the second connecting rod 46
Spindle 48,52 diameter of being open is slightly less than the diameter of connecting shaft 48, and its round edge is taper so that herein can be closely close after installation
Envelope, the diameter of another opening 51 is bigger, convenient installation, is tightened and is fixed in the second connecting rod 46 by band 74 after installation.
Dust cover 50 has wave structure, is improving enough distortion allowances close to the position of opening 52.Below the second connecting rod 46
Oscillating bearing 47 on also there is pouring orifice.
As is illustrated by figs. 11 and 12, the head rod 45 of lateral damper 14 is vertical setting, its second connecting rod
46 are laterally set, and the head rod 45 of vertical damper 15 is laterally set, and its second connecting rod 46 is vertical sets
Put, because each junction is connected using oscillating bearing 47, when producing oscillation crosswise or vertical vibration when the vehicle is running, the
Two connecting rods 46 can be swung on horizontal or vertical in certain angle, and then drive head rod 45 to swing, shock absorber sheet
Body 44 limit head rod 45 swing angle, and then play in the horizontal with it is vertical on damping effect.
Lateral damper 14 and vertical damper 15 are arranged on the both sides of bolster 10 and the mounting rail 7 of framework 4 by the present invention
Sidepiece between, lateral damper 14 and vertical damper 1 are arranged in the opening surrounded by mounting rail 7 and curb girder 8 and fixed
On the side plate of the inner side of mounting rail 7, and shock absorber body 44 is shaken by the connecting rod 46 of head rod 45 and second with being used as
The framework 4 in dynamic source connects, and the rotary motion of shock absorber body 44 is not only changed into the linear motion of the second connecting rod 46, effectively
The amplification of transverse direction and vertical deviation is realized, increases the damping regulating effect of shock absorber, regulation is more flexible, also to turn to
The structure of frame is simpler compact, reduces space-consuming, is more favorable to reduce height of floor from rail top.
As shown in fig. 7, on two angles of the upper surface of bolster 10, i.e. the opening position of shock absorber mounting seat 32 is additionally provided with two
Individual cavity 31, set cavity 31 to play a part of reinforcement here, improve the structural strength and rigidity of whole bolster 10,
The effect of loss of weight is also functioned to simultaneously.A discharge outlet is also had in two cavitys 31, discharge outlet runs through bolster 10, with side
Just rainwater and the flushing water discharge accumulated in in cavity 31.
As described above, the plan content with reference to given by accompanying drawing, can derive similar technical scheme.In every case it is not de-
From the content of technical solution of the present invention, any simple modification made according to technical spirit of the invention to above example, etc.
With change and modification, in the range of still falling within technical solution of the present invention.
Claims (9)
1. a kind of low-floor rail vehicle truck bolster structure, including bolster, slew gear is provided with the bolster, its
It is characterised by：The bolster is in the shape of the letter V structure, and the side on the car body longitudinal direction of the bolster is provided with to be connected with drawing pull bar
The first drawing pull bar mounting interface, an extension is extended downwardly from the center of the lower surface of the bolster, it is described to shake
Pillow is connected by slew gear with car body, and the both sides in the cross-car of the bolster are symmetrically arranged with shock absorber mounting seat,
The shock absorber mounting seat is step-like structure, construction opening is provided with the step of inner side, in the side wall of construction opening
On be provided with bolt hole for installing lateral damper, the bolt for installing vertical damper is provided with the step in outside
Hole.
2. low-floor rail vehicle truck bolster structure according to claim 1, it is characterised in that：The bolster,
One drawing pull bar mounting interface, extension, shock absorber mounting seat are integrated cast structure.
3. low-floor rail vehicle truck bolster structure according to claim 1, it is characterised in that：First traction
Pull bar mounting interface is the structure of split, and semicircular opening is respectively arranged with two parts of split and is total to after fastening
With circular the first installing port for being used to install drawing pull bar end of composition, two parts are bolted to connection.
4. low-floor rail vehicle truck bolster structure according to claim 3, it is characterised in that：First traction
The top half of pull bar mounting interface is the multiple downward projection of arch hatch frames set in the bolster side, and first leads
The be pulled the latter half of bar mounting interface is each independently installed multiple mounting blocks, the side wall of corresponding each arch opening both sides
Respectively it is fixedly connected with a mounting blocks.
5. low-floor rail vehicle truck bolster structure according to claim 4, it is characterised in that：First traction
The upper surface of pull bar mounting interface is the part that the bolster upper table is recessed downwards.
6. low-floor rail vehicle truck bolster structure according to claim 1, it is characterised in that：On the bolster
Lift is installed, the bottom of the lift and the curb girder of framework connect.
7. low-floor rail vehicle truck bolster structure according to claim 6, it is characterised in that：The lift
For more lifting bars, the quantity of the lifting bar is corresponding with the quantity of secondary spring, pacifies respectively inside each secondary spring
Fill a lifting bar.
8. low-floor rail vehicle truck bolster structure according to claim 1, it is characterised in that：In the bolster
The first mounting groove of upward indent is provided with lower surface, the top insertion of secondary spring is arranged in the first mounting groove.
A kind of 9. bogie, it is characterised in that：Bolster of the installation described in just like claim any one of 1-8 on the bogie
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610579568.2A CN106080642B (en) | 2016-07-22 | 2016-07-22 | Low-floor rail vehicle truck bolster structure and bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610579568.2A CN106080642B (en) | 2016-07-22 | 2016-07-22 | Low-floor rail vehicle truck bolster structure and bogie |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106080642A CN106080642A (en) | 2016-11-09 |
| CN106080642B true CN106080642B (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610579568.2A Active CN106080642B (en) | 2016-07-22 | 2016-07-22 | Low-floor rail vehicle truck bolster structure and bogie |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106553492A (en) * | 2016-11-18 | 2017-04-05 | 中车四方车辆有限公司 | Railway guider and autorail |
| CN107554543B (en) * | 2017-10-13 | 2023-09-19 | 通号轨道车辆有限公司 | Rail vehicle and articulated tramcar bogie thereof |
| CN111055872B (en) * | 2020-01-02 | 2020-11-27 | 中车株洲电力机车有限公司 | Single-shaft rubber wheel bogie |
| CN113525443A (en) * | 2021-07-09 | 2021-10-22 | 中车长江车辆有限公司 | Swing bolster, three-piece type bogie and heavy-duty railway wagon |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1339921A (en) * | 1971-04-26 | 1973-12-05 | British Railways Board | Railway vehicle suspensions |
| EP1741610A3 (en) * | 2005-07-04 | 2008-05-07 | Vukv A.S. | Low-deck articulated rail vehicle, particulary a tram |
| CZ301278B6 (en) * | 2008-01-14 | 2009-12-30 | Inekon Group, A. S. | Traction rail vehicle bogie |
| CN103253282A (en) * | 2013-05-20 | 2013-08-21 | 南车长江车辆有限公司 | Railway vehicle central suspension type self-height-adjusting bogie |
| CN205872073U (en) * | 2016-07-22 | 2017-01-11 | 中车青岛四方机车车辆股份有限公司 | Low floor railway vehicle bogie truck bloster structure and bogie |
-
2016
- 2016-07-22 CN CN201610579568.2A patent/CN106080642B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1339921A (en) * | 1971-04-26 | 1973-12-05 | British Railways Board | Railway vehicle suspensions |
| EP1741610A3 (en) * | 2005-07-04 | 2008-05-07 | Vukv A.S. | Low-deck articulated rail vehicle, particulary a tram |
| CZ301278B6 (en) * | 2008-01-14 | 2009-12-30 | Inekon Group, A. S. | Traction rail vehicle bogie |
| CN103253282A (en) * | 2013-05-20 | 2013-08-21 | 南车长江车辆有限公司 | Railway vehicle central suspension type self-height-adjusting bogie |
| CN205872073U (en) * | 2016-07-22 | 2017-01-11 | 中车青岛四方机车车辆股份有限公司 | Low floor railway vehicle bogie truck bloster structure and bogie |
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| Publication number | Publication date |
|---|---|
| CN106080642A (en) | 2016-11-09 |
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