CN205652141U - Bogie and have rail vehicle of this bogie - Google Patents

Abstract

The utility model provides a bogie, the bogie includes that framework, one end are fixed in the horizontal shock absorber of framework, be fixed in traction pull rod on the framework, be fixed in the last draw beam of traction pull rod with be fixed in core pin on the draw beam, wherein, the core pin is while and car connection also, just can link together automobile body and bogie through core pin and draw beam like this, will the other end of horizontal shock absorber is fixed through horizontal shock absorber support on the draw beam, absorb impact load through horizontal shock absorber, take the comfort level and obtained good promotion. Horizontal shock absorber support with draw beam structure as an organic whole, the draw beam of a body structure has saved this process of assembly welding, has improved production efficiency. The stress concentration who has avoided the assembly welding to produce has improved the intensity of draw beam self, provides the powerful guarantee for the safe operation of train. The utility model also provides a rail vehicle.

Description

A kind of bogie and there is the rail vehicle of this bogie

Technical field

This utility model relates to rail vehicle technical field, particularly relates to a kind of bogie and has this and turn to The rail vehicle of frame.

Background technology

Along with popularizing of high ferro, people propose the highest requirement to the riding comfort of high ferro, high The manufacturing process of train is had higher requirement on the basis of meeting passenger demand by ferrum engineers.

Bogie and car body are the key components of train, and the part being connected with bogie at car body is referred to as Traction apparatus, the quality of traction apparatus is not only related to the operation safety of train but also is directly connected to take advantage of How the ride quality of visitor, therefore, ensure the quality of traction apparatus, allow traction apparatus preferably transmit Reduce manufacturing cost while kinetic energy, simplify the problem that mounting process is present technical staff research.

In the prior art, the draw beam of train be have multi-sheets welding after assembled, it is manufactured into This height, installation accuracy is poor, easily occurs that stress is concentrated, and easily occurs damaging in application process.Not only So, workshop installation process has also had more multiple working procedure, has added human cost.

In view of this, it would be highly desirable to be optimized design for prior art, to strengthen the structural strength drawing beam, Improve the integrated Chengdu of draw beam, and erection & lift precision, improve working performance, reduce human cost.

Utility model content

For drawbacks described above, this utility model solves the technical problem that and is, it is provided that a kind of bogie, with Solving the draw beam intensity existing for present technology low, installation accuracy is poor, the problem that efficiency of assembling is low.

This utility model provides a kind of train bogie, is fixed on described framework including framework, one end Lateral damper, the drawing pull bar being fixed on described framework, the traction be fixed in described drawing pull bar Beam and the centrepin being connected on described draw beam, the other end of described lateral damper passes through lateral vibration absorbing Device bearing is fixed on described draw beam, and described lateral damper bearing is structure as a whole with described draw beam.

Preferably, described draw beam is formed in one structure, and it has the chamber suitable with described centrepin Body.

Preferably, described draw beam is provided with the vertical backstop matched with described framework.

Preferably, described vertical backstop is boss.

Preferably, described elastic device has center cavity.

Preferably, being provided with backstop between the framework of described bogie and centrepin, described backstop includes:

Base, is fixedly installed on the stringer of described framework, and described base external periphery outline is without departing from institute State the external periphery outline of stringer；

Transverse gear, fixes with described base and is connected, described transverse gear is provided with baffle plate, described backstop Muscle it is provided with on plate；

Center key seat, is fixedly installed on described centrepin, and is oppositely arranged with described baffle plate；

Elastomer, is arranged between described transverse gear and described center key seat.

Preferably, described lateral damper bearing is misaligned with the radially projecting of described vertical backstop.

Preferably, between described transverse gear and described base, gap tab it is provided with.

This utility model also provides for a kind of rail vehicle, and including bogie, described bogie uses such as front institute The bogie stated.

From such scheme, this utility model provides a kind of bogie, described bogie include framework, One end is fixed on the lateral damper of described framework, the drawing pull bar being fixed on described framework, is fixed on Draw beam in described drawing pull bar and the centrepin being fixed on described draw beam, wherein, centrepin is also It is connected with car body simultaneously, so just car body and bogie can be connected to one by centrepin with draw beam Rise, in order to reduce the oscillation crosswise of car body, the other end of described lateral damper is passed through lateral damper Bearing is fixed on described draw beam, absorbs vibrational energy by lateral damper, allows the horizontal of car body Vibration reduces, and makes ride quality obtain good lifting.

Needing exist for explanation, the stub end that described lateral damper is connected with described draw beam wants height The little head end that framework described in Yu Qiyu is connected.Concrete, the stub end of described lateral damper and microcephaly The difference in height of end is greater than its vertical addendum modification, even if draw beam is pressed by under car body, and lateral damper two End can also at least keep level, so can ensure that its good effectiveness in vibration suppression so that it is dynamic performance More excellent.Stub end mentioned here refers to lateral damper cylinder rod end, and little head end is lateral damper Cylinder body end.

Described lateral damper bearing is structure as a whole with described draw beam, and the draw beam of integrative-structure saves Assembly welding this process, substantially increases production efficiency.Moreover, the draw beam of integrated formed structure Avoid the stress concentration that assembly welding produces, improve the intensity of draw beam self, for the safe operation of train Provide powerful guarantee.

In preferred version of the present utility model, on described draw beam, setting matches with described framework Vertical backstop, vertical backstop is responsible for matching with framework of task.So by compartment and bogie one The when of playing lifting, car body of only need to slinging, car body is connected with centrepin, and centrepin is connected with draw beam, Framework is held up by draw beam by vertical backstop, facilitates lifting.

In another preferred version of the present utility model, it is arranged between framework and the centrepin of described bogie Backstop, described backstop includes base, transverse gear, center key seat and elastomer, and described base is fixing to be set Putting on the stringer of described framework, described base external periphery outline is without departing from the outward flange of described stringer Profile, so designs, and will not block the installing space around stringer, the most more convenient in installation process, Meanwhile, the load of bogie, during centrepin transmits, is to be transmitted by the stringer of framework , evenly, and base does not haves the phenomenon of bending to dynamics.

Described transverse gear and described base are fixing to be connected, and described transverse gear is provided with baffle plate, described stops Muscle it is provided with on baffle plate；Described center key seat is fixedly installed on described centrepin, and with described baffle plate It is oppositely arranged；Described elastomer is arranged between described transverse gear and described center key seat.It is so designed that, When the very fast hour wheel of speed is to when driving to the more anxious curve of bent angle, by inertia force influence, framework and car body it Between especially between draw beam and centrepin certainly will also can be by bigger impulsive force, above-mentioned design can be by The shock loading of bogie transmission is delivered on transverse gear by the base on bogie frame, then by horizontal stroke Shock loading is absorbed by the elastomer between the key seat of Dang Yu center.

Certainly, centrepin is limited relative to the transverse movement distance of framework, the coefficient of dilatation of elastomer Also it is limited, when inertia force is huge, the when of being not enough to be absorbed by elastomer, transverse gear is arranged Baffle plate and centrepin seated connection touch, limit the transverse movement of centrepin, to prevent car body relative to turning Excessive to the transverse movement of frame.The limit to centrepin transverse movement distance by elastomer energy-absorbing and transverse gear System so that the passenger in compartment shakes innervation and alleviates, and improves the ride quality of passenger.

It is provided with muscle, in order to prevent the shock loading of bogie from crossing baffle plate described in senior general on described baffle plate Fracture.Base is connected with transverse gear, and is fixed on described framework, by the transverse movement distance of centrepin It is limited, prevents from acutely bringing uncomfortable sensation to passenger because car body rocks.

In another preferred version of the present utility model, it is provided with between described transverse gear and described base Gap tab.So can regulate horizontal stroke being installed on the base of bogie frame by transverse gear when Gap between gear and base, i.e. can regulate the distance between baffle plate and center key seat on transverse gear, away from From regulation the energy-absorbing of elastomer can be allowed more reasonable, centrepin transverse movement is apart from more controllable.

Rail vehicle provided by the utility model is provided with above-mentioned bogie, have due to described bogie on Stating technique effect, the rail vehicle being provided with this bogie also should have corresponding technique effect.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, Accompanying drawing in describing below is only embodiments more of the present utility model, for ordinary skill people From the point of view of Yuan, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings Figure.

The structural representation of a kind of specific embodiment of framework that Fig. 1 is the provided bogie of this utility model.

Fig. 2 is the axle side schematic diagram of bogie in Fig. 1.

Fig. 3 is the particular location schematic diagram of bearing.

Pin and the assembling schematic diagram of draw beam centered by Fig. 4.

Fig. 5 is the sectional view of Fig. 4.

Fig. 6 is the sectional view of draw beam.

Fig. 7 is lateral damper scheme of installation.

Fig. 8 is that wheel adjusts pad use schematic diagram.

Fig. 9 is the installation relation exploded perspective view of backstop, centrepin and stringer.

Figure 10 is the exploded perspective view of backstop.

Figure 11 is the overall structure schematic diagram of bogie.

In Fig. 1-11:

Framework 1, bearing 11, beam pipe 12, adjust pad 13, centrepin 2, draw beam 3, outer steel sleeve 333, Vertical backstop 31, lateral damper bearing 32, cutting ferrule 33, capping 4, drawing pull bar 5, securing member 6, spiral shell Bolt 7, elastic device 8, center cavity 81, lateral damper 9, backstop 10, base 101, transverse gear 102, Baffle plate 1021, muscle 1022, gap tab 103, elastomer 104, seat board 1041, center key seat 105, On stringer 111, gap a, centrepin, plane adjusts to distance L of track, wheel wear amount L1, dismounting Pad gross thickness L2.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this The scope of utility model protection.

The present embodiment provides a kind of train bogie, as Figure 1-3.Wherein, Fig. 1 is this utility model The structural representation of a kind of specific embodiment of provided bogie；Fig. 2 is that the axle side of bogie in Fig. 1 shows It is intended to；Fig. 3 is the particular location schematic diagram of bearing.

This bogie includes that framework 1, one end are fixed on the lateral damper 9 of described framework, are fixed on framework Drawing pull bar 5, the draw beam 3 being fixed in drawing pull bar 5 on 1 and be fixed on draw beam 3 Core pin 2, centrepin 2 is also connected with car body (not shown) simultaneously, so passes through centrepin 2 and leads Draw beam 3 just can be linked together with bogie by car body, passed by draw beam 3 to reduce bogie It is delivered to the shock loading of centrepin 2, by the other end of lateral damper 9 by lateral damper bearing 32 It is fixed on draw beam 3, absorbs shock loading by lateral damper 9, allow draw beam 3 be delivered to The shock loading of centrepin 2 reduces, and ride quality has obtained good lifting.

Needing exist for explanation, the stub end that lateral damper 9 is connected with draw beam 3 is higher than it The little head end being connected with framework 1.Concrete, the stub end of lateral damper 9 and the height of little head end Difference is greater than its vertical addendum modification, even if this mounting means draw beam 3 declines along with car body, laterally Vibroshock two ends 9 can also at least keep level, so can ensure that its good effectiveness in vibration suppression so that it is Dynamic performance is more excellent.Stub end mentioned here refers to the cylinder rod end of lateral damper 9, microcephaly End is the cylinder body end of lateral damper 9.

Lateral damper bearing 32 is structure as a whole with draw beam 3.At train in running, laterally Absorber seat 32 impact load is relatively big, and integrative-structure can increase lateral damper bearing 32 Intensity.And eliminate welding procedure, substantially increase production efficiency.Moreover, one-body molded The draw beam 3 of structure avoids the stress concentration that welding produces, and improves the intensity of draw beam 3 self, Safe operation for train provides powerful guarantee.

Meanwhile, draw beam 3 being also fabricated to integrated formed structure, it has and described centrepin phase Adaptive cavity.Improve installation accuracy while being so more convenient for installing, installation accuracy improves, car In running, the transmission of power was the most reasonable, was conducive to improving the ride quality of passenger.With aforementioned Lateral damper bearing 32 is as the one-body molded principle of draw beam 3, and technique is simpler, accessory size Precision is high, integrated more preferably can eliminate this process of assembly welding, substantially increases production efficiency.Not only So, the draw beam 3 of integrated formed structure it also avoid the stress produced because of assembly welding and concentrates the deformation produced, Improve the intensity of draw beam 3 self, the safe operation for train provides powerful guarantee.

Here, draw beam 3 is formed in one structure, and it is specially foundry goods, it is of course also possible to according to reality The needing of border is manufactured into forging.The cavity adaptive with centrepin 2 can be through hole, concrete structure Form can configure according to practical situation.

The vertical backstop 31 matched with framework 1 it is provided with on draw beam 3.Vertical backstop 31 be responsible for The task that framework 1 is in mating connection.So, compartment is lifted together with bogie when, only need Slinging car body, car body drives centrepin 2, and centrepin 2 drives draw beam 3, draw beam 3 by vertical only Framework 1 is held up by gear 31, after accident vehicle is overstepped the limit, it is simple to overall with car body lifting rerail.In order to save Material saving, can be designed as boss structure by vertical backstop 31 so that it is protrude from the body junction of draw beam 3 Structure, in order to contact with framework 1, boss structure and draw beam 3 are an entirety.

In order to match with the vertical backstop 31 on draw beam 3, framework 1 is provided with bearing 11, as Shown in Fig. 2, Fig. 3, bearing 11 is welded on the beam pipe 12 of framework 1.For more preferable stress, Weld seam between seat 11 and beam pipe 1 is consistent with Impact direction, so, at bearing 11 by along hanging down Directly during the active force in bead direction, the bearing capacity of weld seam is higher.

It addition, be provided with adjustment pad 13 between vertical opposite face at draw beam 3 and framework 1, to ensure Constant distance between compartment and track, does not do concrete limit to the particular number adjusting pad 13 with thickness here Fixed.Concrete, as shown in Figure 8, wherein, Fig. 8 is that wheel adjusts pad use schematic diagram.Work as wheel Vehicle floor face height reduction L1 when the Xuan amount of repairing is L1, in order to be guaranteed in lift rerail time car body with turn to The vertical distance of frame constant, can increase pad at the bogie support with car body and eliminate range difference, Being withdrawn from by adjustment pad 13, dismounting adjusts pad gross thickness L2, here, L1=L2 simultaneously.So, make Obtaining centrepin 2 to raise together with car body, centrepin 2 just can keep constant with interorbital distance, ensures L's is constant.Compartment is invariable with the difference in height of platform, facilitates passenger getting on/off.

Here, adjust the sheet material that pad 13 can be multiple different-thickness, according to the concrete thickness of wheel wear Degree, withdraws from the adjustment pad 13 of respective thickness to eliminate difference, concrete, can adjust pad 13 It is arranged between vertical backstop 31 and bearing 11, naturally it is also possible to adjustment pad 13 is arranged on any energy Enough connecting elements 1 and the position of draw beam 3.

Come off in order to avoid adjusting pad 13, by connector, its dismountable being fixedly installed on can be propped up On seat 11, certainly, in order to meet the needs of reality, can set adjusting dismountable the fixing of pad 13 Put on other position or vertical backstop 31 of framework 1 also or on other position of draw beam 3, Adjusting the setting of pad 13, as long as disclosure satisfy that the demand, being not particularly limited at this, above-mentioned Connector can be bolt, screw, buckle etc., as long as can be dismountable fixing equal by adjusting pad 13 Can.

As shown in figs. 4-7, wherein, pin and the assembling schematic diagram of draw beam centered by Fig. 4；Fig. 5 is Fig. 4 Sectional view；Fig. 6 is the sectional view of draw beam；Fig. 7 is lateral damper scheme of installation.

It should be noted that lateral damper bearing 32 is misaligned with the radially projecting of vertical backstop 31, To ensure the reasonability of working place, make each component operationally wait and do not produce interference mutually.

Being provided with elastic device 8 between centrepin 2 and draw beam 3, concrete, elastic device 8 is arranged on Between cutting ferrule 33 and outer steel sleeve 333, outer steel sleeve 333 and draw beam 3 are interference fit.Concrete, card Set 33, elastic device 8 and outer steel sleeve 333 can sulfide and become an integrated model, so ties Structure is simpler, it is more convenient to install.Can certainly be provided separately according to practical situation.Cutting ferrule 33 is internal is Upper coarse and lower fine bellmouth, accordingly, centrepin 2 position suitable with the cutting ferrule 33 of draw beam 3 is Upper coarse and lower fine pyramidal structure.It is so designed that, when assembling when, facilitates centrepin 2 to import and lead Drawing the inside of beam 3, moreover, so, centrepin 2 is more tight with the combination of draw beam 3, makes The pull strength of centrepin 2 must be transmitted more smooth and easy by draw beam 3.

Here, the noun of locality used herein defines on the basis of Fig. 5, and the top of Fig. 5 is On " ", its " on " relative direction be D score, it will be appreciated that the use of the above-mentioned noun of locality for The protection domain that this programme is limited is not intended that restriction.

Elastic device 8 is internal has center cavity 81, and the arranging of center cavity 81 can allow elasticity to a greater extent Device 8 deforms energy-absorbing in load impacting.Centrepin 2 also can receive draw beam 3 transmission more stably Power, so, the power that centrepin 2 is delivered to car body is the most steady, and the ride quality of passenger is also It is greatly improved.Here center cavity 81 can be inside elastic device 8, it is also possible to the external world Air is identical, and concrete design form can be adjusted according to actual needs, is not particularly limited at this.

Here, elastic device 8 not doing concrete restriction, it both can be rubber, it is also possible to be spring, As long as buffering energy-absorbing function can be played.

After centrepin 2 and draw beam 3 assemble, arranging capping 4 in draw beam 3 bottom, capping 4 is led to Cross bolt 7 to fix with centrepin and draw beam, fixed by securing member 6 between centrepin 2 and capping 4. When train needs lifting when, only need to lift by crane car parts, centrepin 2 drives envelope by securing member 6 Draw beam 3 is taken up together with bogie by lid 4.Here securing member 6 can be bolt, screw, stud Deng, as long as centrepin 2 can be linked together with capping 4.

As shown in figs. 9-10, wherein Fig. 9 is the installation relation blast signal of backstop, centrepin and stringer Figure；Figure 10 is the exploded perspective view of backstop.

Wherein, this backstop includes base 101, transverse gear 102, center key seat 105 and elastomer 104, Base 101 is fixedly installed on the stringer 111 of framework 1, and base 101 external periphery outline is without departing from institute State the external periphery outline of stringer 111, so design, the installation around stringer 111 will not be blocked empty Between, the most more convenient in installation and later period maintenance maintenance process, meanwhile, the horizontal load of bogie Lotus, during centrepin 2 transmits, is to be transmitted by the stringer 111 of framework 1, and dynamics is more equal Even, transverse gear 102 will not produce upset along the faceted pebble of stringer 111, and this design is more stable, and the end Seat 101 does not haves the phenomenon of bending.

Transverse gear 102 is fixing with base 101 to be connected, and transverse gear 102 is provided with baffle plate 1021, only Being provided with muscle 1022 on baffle plate 1021, center key seat 105 is fixedly installed on centrepin 2, and and backstop Plate 1021 is oppositely arranged, and elastomer 104 is arranged between transverse gear 102 and center key seat 105.So Design, when the very fast hour wheel of speed is to when driving to the more anxious curve of bent angle, by inertia force influence, framework 1 And especially also certainly will can be subject to bigger impulsive force between draw beam 3 and centrepin 2 between car body, on State design can the shock loading that bogie transmits be transmitted by the base 101 on the framework 1 of bogie On transverse gear 102, then will punching by the elastomer 104 between transverse gear 102 and center key seat 105 Hit load to absorb.

Certainly, centrepin 2 is limited relative to the transverse movement distance of framework 1, when inertia force is huge, The when of being not enough to be absorbed by elastic 104 bodies, the baffle plate 1021 that transverse gear 102 is arranged and center Key seat 105 contacts, and limits the transverse movement of centrepin 2, to prevent the car body horizontal stroke relative to bogie Excessive to motion.By elastic 104 body energy-absorbings and transverse gear 102 to centrepin 2 transverse movement distance Limit so that the passenger in compartment shakes innervation and alleviates, and improves the ride quality of passenger, also avoids car Dynamic displacement exceedes gauge requirement in running.

Muscle 1022 it is provided with, in order to prevent the shock loading of bogie from crossing senior general's baffle plate on baffle plate 1021 1021 fracture, and can bear load more greatly, resist higher lateral impact forces.Base 101 is with horizontal To gear 102 connection, and it is fixed on framework 1, the transverse movement distance of centrepin 2 is limited, Prevent vehicle dynamic displacement in running from exceeding gauge requirement.

It addition, be provided with gap tab 103 between transverse gear 102 and base 1041.So inciting somebody to action By increasing or can reduce the when that transverse gear 102 being installed on the base 1041 of bogie frame 1 The quantity of gap tab 103 regulates the gap between transverse gear 102 and base 101, i.e. can regulate Distance between baffle plate 1021 and center key seat 105 on transverse gear 102, prevents vehicle in running Dynamic displacement exceedes gauge requirement, and centrepin 2 transverse movement is apart from more controllable.

Another, gap tab 103 has downward gap a, the setting of pad gap a, facilitates behaviour Make the dismounting of personnel, when needing to adjust the distance between transverse gear and base when, it is not necessary to by transverse gear 102 Pull down, only gap tab 103 need to be filled in gap from above, allow the gap a on gap tab 103 Embed on the connector between transverse gear 102 and base 101, so, not only facilitate installation and inspection Repair, additionally it is possible to prevent gap from adjusting 103 and drop in train travelling process.

Here, the adjustment particular number of pad 103, thickness, material are not particularly limited with shape, As long as disclosure satisfy that the needs filling gap.

In addition, elastomer 104 is fixedly installed on transverse gear 102, and concrete, elastomer 104 has There are seat board 1041, seat board 1041 to be arranged on transverse gear 102, are so designed that and are easy to tearing open of elastomer 104 Dress and later period maintenance during change, meanwhile, the elastic part of elastomer 104 can be rubber or Person's spring, is here not specifically limited the concrete form of elastomer, as long as vibration damping and energy-absorbing can be played Effect.The elastic part of elastomer can be combined with seat board 1041 by sulfuration, naturally it is also possible to It is bolted.

Distance variable between baffle plate 1021 and center key seat 105, along with car body and bogie support Relative motion baffle plate 1021 and center key seat 105 between distance the most at any time in change, certainly elastic The profile of body 104 is also constantly in change.

Base 101 is fixedly installed on the stringer 111 of bogie frame 1, specifically on stringer Position can define according to the practical center pin 2 installation matching relationship on framework 1.On base 101 Being provided with two junction points that are connected with transverse gear 102, so dismounting convenient, later maintenance is overhauled The most time-consuming.

It should be noted that baffle plate 1021 is symmetrical arranged on transverse gear 102, elastomer 104 is arranged In the middle of baffle plate 1021.The baffle plate 1021 arrangement form on transverse gear 102 can allow centrepin 2 And the transmission of power more balanced and reasonable between transverse gear 102, is possible not only to ensure the service life of each contact, The energy absorption of elastomer 104 more can be allowed more, and so, the vibration being delivered to compartment is the least, takes easypro Adaptive can well be promoted.

In addition to aforementioned backstop, present embodiment also provides for a kind of bogie, including centrepin and framework, in Foregoing backstop is used between core pin and framework.It should be noted that the main part of this bogie is non- The core utility model point place of the application, and prior art can be used to realize, therefore repeat no more herein.

Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses This utility model.Multiple amendment to these embodiments will be aobvious for those skilled in the art And be clear to, generic principles defined herein can be without departing from spirit or scope of the present utility model In the case of, realize in other embodiments.Therefore, this utility model is not intended to be limited to institute herein These embodiments shown, and it is to fit to consistent with principles disclosed herein and features of novelty the widest Scope.

Claims (10)

1. a bogie, it is fixed on the lateral damper of described framework, the drawing pull bar being fixed on described framework, the draw beam being fixed in described drawing pull bar and the centrepin being fixed on described draw beam including framework, one end, it is characterized in that: the other end of described lateral damper is fixed on described draw beam by lateral damper bearing, described lateral damper bearing is structure as a whole with described draw beam.

Bogie the most according to claim 1, it is characterised in that: described draw beam is formed in one structure, and it has the cavity suitable with described centrepin.

Bogie the most according to claim 2, it is characterised in that: it is provided with the vertical backstop matched with described framework on described draw beam.

Bogie the most according to claim 3, it is characterised in that: described vertical backstop is boss.

5. according to the bogie according to any one of claim 3 to 4, it is characterised in that: it is provided with elastic device between described centrepin and described draw beam.

Bogie the most according to claim 5, it is characterised in that: described elastic device has center cavity.

Bogie the most according to claim 6, it is characterised in that: being provided with backstop between the framework of bogie and centrepin, described backstop includes:

Base, is fixedly installed on the stringer of described framework, and described base external periphery outline is without departing from the external periphery outline of described stringer；

Transverse gear, fixes with described base and is connected, described transverse gear is provided with baffle plate, described baffle plate is provided with muscle；

Center key seat, is fixedly installed on described centrepin, and is oppositely arranged with described baffle plate；

Elastomer, is arranged between described transverse gear and described center key seat.

Bogie the most according to claim 7, it is characterised in that: described lateral damper bearing is misaligned with the radially projecting of described vertical backstop.

Bogie the most according to claim 8, it is characterised in that: between described transverse gear and described base, it is provided with gap tab.

10. a rail vehicle, including bogie, it is characterised in that: described bogie uses bogie as claimed in any one of claims 1-9 wherein.