CN205769308U - A kind of low-floor rail vehicle bogie secondary suspension device and bogie - Google Patents

Abstract

This utility model relates to a kind of low-floor rail vehicle bogie secondary suspension device and bogie, form including bolster, the side of bolster composition is connected with drawing pull bar composition, the opposite side formed relative to described drawing pull bar formed at described bolster is provided with crossbeam vibroshock and vertical damper, the other end of crossbeam vibroshock and vertical damper is connected with framework, described bolster composition is connected with car body by slew gear, installs secondary spring composition between described bolster composition and framework.This utility model is the most simple and compact for structure, lightweight, when vehicle run traction and the transmission of brake force can also be better achieved, carry vertical, horizontal, longitudinal loading, drastically increase the little curve negotiation ability of vehicle, improving vehicle runnability, and floor can be greatly reduced and be beneficial to setting of getting on or off the bus, vehicle drive performance also obtains bigger raising.

Description

A kind of low-floor rail vehicle bogie secondary suspension device and bogie

Technical field

This utility model relates to a kind of low-floor rail vehicle bogie, relates to a kind of secondary suspension device installed on low-floor articulated track vehicle simultaneously, belongs to rail vehicle manufacturing technology field.

Background technology

Low-floor urban rail vehicle plays the most important effect in a lot of urban transportations, and in Low-floor urban rail vehicle, bogie is as most important structure member, and its structure and parameters directly determine the stability that vehicle runs and the comfortableness taken.The bogie of existing Low-floor urban rail vehicle generally has that little curve negotiation ability is poor, floor higher be difficult to get on or off the bus setting and the problem such as traction apparatus is heavy.Continuous progress along with city rail vehicle, requirement to city rail vehicle is more and more higher, it is thus desirable to provide one can reduce floor be beneficial to setting of getting on or off the bus, and low-floor articulated track vehicle bogie suspension device simple and compact for structure, that curve negotiation ability is strong, lightweight, raising runs vehicle performance.

Utility model content

This utility model main purpose is to solve the problems referred to above and deficiency, there is provided a kind of simple and compact for structure, and height of floor from rail top can be reduced, improve the low-floor rail vehicle bogie secondary suspension device of vehicle runnability, a kind of bogie being provided with this secondary suspension device is provided simultaneously.

For achieving the above object, the technical solution of the utility model is:

A kind of low-floor rail vehicle bogie secondary suspension device, form including bolster, the side of described bolster composition is connected with drawing pull bar composition, the opposite side formed relative to described drawing pull bar formed at described bolster is provided with crossbeam vibroshock and vertical damper, the other end of crossbeam vibroshock and vertical damper is connected with framework, described bolster composition is connected with car body by slew gear, installs secondary spring composition between described bolster composition and framework.

Further, described bolster consists of two groups, two groups of bolster composition be symmetricly set on be framed in car body longitudinally on both sides, bolster composition described in two groups be separately positioned on two groups of wheels to centre.

Further, described bolster composition includes bolster, is provided with the multiple first drawing pull bar mounting interfaces being connected with drawing pull bar in the side of described bolster, and the opposite side at described bolster is provided with the vibroshock mounting seat for fixed cross beam vibroshock and vertical damper.

Further, described vibroshock mounting seat is in the most vertically extending part of the side of described bolster.

Further, extending downwardly from an extension in the center of the lower surface of described bolster, described extension is inserted in the opening architecturally arranged.

Further, described bolster consists of integrally casting structure.

Further, the horizontal both sides sidewall of the opening arranged on described framework being separately installed with horizontal backstop, the extension below described bolster stretches between two described horizontal backstops, and and laterally leaves horizontal backstop gap between backstop.

Further, described first drawing pull bar mounting interface is the structure of split, being respectively arranged with semicircular opening in two parts of split and collectively constitute first installing port for installing drawing pull bar of circle after fastening, two parts are bolted to connection.

Further, between lower surface and the framework that described bolster forms, lift is installed.

Further, described lift is two lifting bars, and two described lifting bars are symmetricly set on the lower section of described bolster composition along cross-car.

Further, described slew gear includes that slewing bearing and car body connect seat, described slewing bearing is fixedly mounted on bolster, described car body connects the top of seat and is fixed on car body, bottom is fixed in described slewing bearing, being provided centrally with for the oil filling mechanism for described slewing bearing oiling at described slewing bearing.

Further, described oil filling mechanism includes one group of pump nozzle, and pump nozzle is connected with slewing bearing by oil fuel tube, and pump nozzle is arranged in an oil nozzle mounting seat, and described oil nozzle mounting seat is fixed on the bolster upper surface at slewing bearing center.

Further, described oil nozzle mounting seat is column structure, cylindrical border is provided with the vertical receiving chamber of the substantially semicircular in shape of one or more indent extended in the vertical direction and laterally contains chamber around the first of cylinder excircle setting, installing a pump nozzle at each vertical receiving intracavity, it is fixing by band binding that the oil fuel tube being connected with pump nozzle laterally contains the position in chamber first.

Further, between described bolster composition and framework, secondary spring composition described in two groups it is provided with.

Further, described secondary spring composition is made up of the spring of upper padding plate, lower bolster and centre, a vertical backstop it is additionally provided with in the inside of described spring, described vertical backstop is fixed on described upper padding plate, architecturally it is correspondingly arranged on a projection upwards, described projection stretches to the inside of described spring after mounting, and with vertical backstop just to setting, has vertical backstop gap between bottom and the top of projection of described vertical backstop.

Another technical scheme of the present utility model is:

A kind of bogie, is provided with bogie secondary suspension device as above on described bogie.

To sum up content, a kind of low-floor rail vehicle bogie secondary suspension device described in the utility model and bogie, bolster composition is connected by slew gear with between car body, and it being connected realization traction and braking by drawing pull bar composition with framework in the side of bolster composition, the opposite side at bolster composition installs lateral damper and vertical damper.This suspension arrangement is the most simple and compact for structure, lightweight, when vehicle run traction and the transmission of brake force can also be better achieved, carry vertical, horizontal, longitudinal loading, it is greatly enhanced the little curve negotiation ability of vehicle, improves vehicle runnability, and height of floor from rail top can be greatly reduced, being beneficial to setting of getting on or off the bus, vehicle drive performance also obtains bigger raising.

Accompanying drawing explanation

Fig. 1 is this utility model bogie structure schematic diagram；

Fig. 2 is this utility model frame construction schematic diagram；

Fig. 3 is the top view of Fig. 1；

Fig. 4 is the A-A sectional view of Fig. 3；

Fig. 5 is the B-B sectional view of Fig. 3；

Fig. 6 is the C-C sectional view of Fig. 3；

Fig. 7 is the D direction view of Fig. 3；

Fig. 8 is this utility model damper structure schematic diagram；

Fig. 9 is this utility model drawing pull bar structural representation；

Figure 10 is the top view of Fig. 9；

Figure 11 is that this utility model bolster forms structural representation；

Figure 12 is the top view of this utility model bolster composition structure；

Figure 13 is the F direction view of Figure 12；

Figure 14 is the G-G sectional view of Figure 12；

Figure 15 is the structural representation that this utility model bolster is connected with car body；

Figure 16 is this utility model oil nozzle mounting seat structural representation；

Figure 17 is the top view of Figure 16；

Figure 18 is this utility model horizontal stop configurations schematic diagram；

Figure 19 is this utility model lifting bar structural representation；

Figure 20 is that this utility model secondary spring forms mounting structure schematic diagram；

Figure 21 is that this utility model secondary spring forms structural representation；

Figure 22 is this utility model dust cover structure schematic diagram.

nullAs shown in Fig. 1 to Figure 22，Bogie 1，Framework 2，Secondary suspension device 3，Wheel is to 4，Wheel 5，Bolster composition 6，Drawing pull bar composition 7，Secondary spring composition 8，Lateral damper 9，Vertical damper 10，Bolster 11，First drawing pull bar mounting interface 12，Containing cavity 13，Slewing bearing 14，Bolt 15，Drawing pull bar 16，Pull bar 16a，Ball pivot 16b，Connect seat 16c，First installing port 17，Bolt 18，Car body connects seat 19，By mouth 20，Inner ring bolt 21，Outer ring bolt 22，Underframe 23，Annular boss 24，Annular erecting bed 25，Oil filling mechanism 26，Pump nozzle 27，Oil fuel tube 28，Oil nozzle mounting seat 29，Vertical receiving chamber 30，Closure 31，First laterally contains chamber 32，Band 33，Cavity 34，Discharge outlet 35，First reinforcement 36，Vibroshock mounting seat 37，Bolt hole 38，Second installing port 39，Straight-through type pipe joint 40，Installing plate 41，Longitudinal stopper section 42，Bolt 43，Extension 45，Opening 46，Laterally backstop 47，Wearing layer 47a，Rubber layer 47b，First base plate 47c，Second base plate 47d，3rd base plate 47e，Internal thread hole 47f，Bolt 48，Adjust pad 49，Installing hole 50，Lifting bar 51，Fixing port 52，Backing plate 53，Locking backing plate 54，Mounting blocks 55，Bolt 56，Spline plane 57，Sealing ring 58，Lifting opening 59，Bayonet socket 60，Stopper section 61，Locating piece 62，Nut 63，Sealing ring 64，Fovea superior part 65，Upper padding plate 66，Upper strata metallic plate 66a，Lower metal plate 66b，Rubber layer 66c，Centre bore 66d，Upper spring positioning convex 66e，Lower bolster 67，Positioning seat 67a，Lower spring positioning convex 67b，Interior spring adjusting pad 67c，Outer spring adjusting pad 67d，Interior spring 68，Outer spring 69，First mounting groove 70，Installation portion 71，Second mounting groove 72，Protective cover 73，Vertical backstop 74，Rubber 74a，Base plate 74b，Baffle plate 74c，Adjustment plate 74d，Bolt 75，Protruding 76，Center crossbeam 77，Pin-and-hole 78，Alignment pin 79，Curb girder 80，Mounting rail 81，End carriage 82，Cannelure 83，Second drawing pull bar mounting interface 84，Bolt 85，Bolt 86，Vibroshock body 87，Head rod 88，Second connecting rod 89，Bolt 90，Oscillating bearing 91，Connecting shaft 92，Dust cover 93，Opening 94，Opening 95，Band 96，Pouring orifice 97，Second laterally contains chamber 98，Seat 99 fixed by vertical damper，Lateral damper fixes seat 100，Slew gear 101，Lamina tecti 102，Groove 103，Nut 104，Connecting rod 105.

Detailed description of the invention

With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings:

As shown in Figure 1, a kind of low-floor rail vehicle bogie, is arranged on low-floor articulated track vehicle, and this rail vehicle includes more piece compartment, installing bogie 1 below every two junctions saving compartment, two joint compartments are connected by slew gear 101 with this bogie 1 respectively.

Bogie 1 include framework 2, single stage suspension device, secondary suspension device 3, traction apparatus, wheel to 4, drive motor (not shown), brake etc., motor is driven to use four and drive four wheels 5 respectively, four driving motors and brake are respectively and fixedly installed on the mounting rail 81 of framework 2 both sides, drive motor and brake to be arranged on the outside of wheel 5, be arranged so as to advantageously reduce the height on floor.

As shown in Figure 2, framework 2 includes 80, two end carriages 82 of two curb girders, one center crossbeam 77 is set in the centre of two curb girders 80, both sides in the longitudinal direction (referring to length over ends of body direction) of two end carriage 82 centrally disposed crossbeams of Parallel Symmetric 77,80, two end carriages 82 of two curb girders and center crossbeam 77 form the frame structure of day font.Outside on horizontal (the referring to width of the carbody direction) of two curb girders 80 is separately provided for installing and drives motor and the mounting rail 81 of brake, center crossbeam 77 uses the structure of integrally casting molding, the two ends of center crossbeam 77 to be welded on the web of two curb girders 80.

As shown in Figures 3 to 5, secondary suspension device 3 includes bolster composition 6, primary spring composition (not shown), secondary spring composition 8, lateral damper 9 and vertical damper 10 etc., and traction apparatus includes drawing pull bar composition 7.Bolster composition 6 and drawing pull bar composition 7 are two groups, the structure of two groups of bolster compositions 6 is identical, it is separately mounted to often to organize the centre taken turns two wheels 5 in 4, two groups of bolster compositions 6 are connected by slew gear 101 respectively with the car body (not shown) in adjacent two joint compartments, drastically increase the little curve negotiation ability of vehicle, and height of floor from rail top can be greatly reduced, it is beneficial to setting of getting on or off the bus, vehicle drive performance also obtains bigger raising, also it is beneficial to reduce wheel and the abrasion of track, the configuration quantity of bogie 1 in vehicle marshalling can be reduced simultaneously, saving vehicle manufactures, repair and maintenance cost.

Often group bolster composition 6 is all connected with framework 2 by one group of drawing pull bar composition 7, two groups of secondary spring compositions 8 are often set between lower section and the end carriage 82 of framework 2 of group bolster composition 6, often organize bolster composition 6 a lateral damper 9 and two vertical dampers 10 are installed towards the side outside framework 2, two vertical dampers 10 are arranged on the both sides on the cross-car direction of lateral damper 9, each bogie 1 includes four vertical dampers 10 and two lateral dampers 9 altogether, in order to oscillation crosswise and the vertical vibration of car body of decaying, improve the comfortableness taken.

As shown in Fig. 3,4,5, often group bolster composition 6 is connected with the center crossbeam 77 of framework 2 by one group of drawing pull bar composition 7 respectively, two groups of drawing pull bar compositions 7 are arranged on the centre of two curb girders 80 and set up separately in the both sides of center crossbeam 77, often group drawing pull bar composition 7 includes one or more drawing pull bar 16, the most often group bolster composition 6 is all connected with the center crossbeam 77 of framework 2 by one or more drawing pull bar 16, one end of drawing pull bar 16 is connected with bolster composition 6, and the other end is then connected with the center crossbeam 77 of framework 2.Two groups of bolster compositions 6 and two groups of drawing pull bar form 7 cloth and postpone the overall structure in flat, can reduce the height on floor further.

In the present embodiment, the most often group drawing pull bar composition 7 includes two drawing pull bar 16, the most often group bolster composition 6 is all connected with the center crossbeam 77 of framework 2 by two drawing pull bar 16, and two drawing pull bar 16 are arranged in parallel between two curb girders 80 of framework 2.Two groups of bolster compositions 6 are connected with the center crossbeam 77 of framework 2 by two drawing pull bar 16 respectively, when vehicle run traction and the transmission of brake force not only can be better achieved, carry vertical, laterally, longitudinal loading, and the end of every drawing pull bar 16 is all connected directly between on the center crossbeam 77 of framework 2, two groups of bolster compositions 6 and two groups of drawing pull bar compositions 7 are made not to affect mutually, one bolster composition 6 does not interferes with the lengthwise movement of another bolster composition 6 when lengthwise movement, the vibratory impulse in one compartment is also not transferred to another compartment, realize the decoupling between two adjacent car bodies, the comfortableness and reliability of operation taken can be improved.It addition, often group bolster composition 6 is connected with the center crossbeam 77 of framework 2 by two parallel drawing pull bar 16, it is also possible to utilize two parallel drawing pull bar 16 to play the effect of anti-side rolling torsion rod, makes vehicle run more steady, and simplify the structure of bogie.

As shown in Figure 9 and Figure 10, the structure of drawing pull bar 16 includes that the pull bar 16a of centre and two ends of the ball pivot 16b at both ends, pull bar 16a all take the shape of the letter U structure, and two ball pivot 16b are inserted into respectively in U-shaped structure to be fixed with pull bar 16a by securing member and are 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 connected with pull bar 16a by the hinged cooperation of sphere curved surface, ball pivot set.On two ball pivot axles of each ball pivot 16b, each installation one connects seat 16c, two connect seat 16c and are symmetricly set on the both sides of this end ball pivot 16b, connecting seat 16c is cylindrical elastomeric material, and its center has installing hole (not indicating in figure), coordinates fixing with the ball pivot axle of ball pivot 16b.

As shown in Fig. 5, Figure 11 to Figure 14, often group bolster composition 6 includes a bolster 11, bolster 11 entirety is a polygonal structure, bolster 11 uses one piece casting structure, not only can ensure that its bulk strength and rigidity, it is to avoid the welding stress that Welding Structure produces, the bearing capacity of bolster 11 is greatly improved, thickness and the weight of bolster 11 can also be reduced, be beneficial to reduce the height of floor, the most also be beneficial to vehicle and realize lightweight.The the first drawing pull bar mounting interface 12 being connected with drawing pull bar 16, the first drawing pull bar mounting interface 12 and bolster 11 integrally casting molding it is provided with towards the side of center crossbeam 77 at bolster 11.

Depending on the quantity of the first drawing pull bar mounting interface 12 quantity according to required drawing pull bar 16 to be mounted, in the present embodiment, two drawing pull bar 16 are installed in the side of each bolster 11, the end of each drawing pull bar 16 needs two the first drawing pull bar mounting interfaces 12, two connection seat 16c in order to fixed traction pull bar 16 end, the side of the most each bolster 11 arranges four the first drawing pull bar mounting interfaces 12, four the first drawing pull bar mounting interfaces 12 are disposed side by side on the side of bolster 11 in in-line, middle two the first drawing pull bar mounting interfaces 12 are closely packed together or are structure as a whole.The upper surface of four the first drawing pull bar mounting interfaces 12 is respectively provided with a reclinate arch section, is beneficial to the overall setting height(from bottom) reducing drawing pull bar composition 7, and then is beneficial to reduce the height of floor.

Each first drawing pull bar mounting interface 12 has circle the first installing port 17 connecting seat 16c for accommodating drawing pull bar 16 end, the ball pivot 16b of drawing pull bar 16 end, between two the first drawing pull bar mounting interfaces 12, arranges four for the bolt hole (not shown) fixing bolt 18 on the both sides of each first drawing pull bar mounting interface 12.

Dismount for convenience, in the present embodiment, four the first drawing pull bar mounting interfaces 12 are disposed as the structure of split, i.e. it is divided into, lower two parts, upper, it is respectively arranged with semicircular opening in lower two parts, the first installing port 17 of circle is collectively constituted after fastening, upper, the bolt hole of fixing bolt 18 it is correspondingly arranged in lower two parts, first drawing pull bar mounting interface 12 upper, the connection seat 16c of drawing pull bar 16 end is tightly fixed in the first installing port 17 after fastening by lower two parts, finally with four bolts 18 by upper, lower two parts are fixed together and realize the fixed installation of drawing pull bar 16.Wherein, the top half of the first drawing pull bar mounting interface 12 and bolster 11 are integrally machined molding, and the latter half is separately installed；The latter half of the first drawing pull bar mounting interface 12 and bolster 11 can also be integrally machined molding, top half is separately installed.As shown in Figure 9 and Figure 10, fix with the first drawing pull bar mounting interface 12 for convenience, the excircle of each connection seat 16c is provided with a pin-and-hole 78, as shown in Figure 5, correspondingly in the upper part or lower part of the first drawing pull bar mounting interface 12, it is also provided with a pin-and-hole, an alignment pin 79 is installed during installation in the pin-and-hole 78 connecting seat 16c, coordinates with the pin-and-hole on the first drawing pull bar mounting interface 12, make drawing pull bar 16 accurately to install, and installation effectiveness can be improved.

As shown in Figure 11, Figure 12 and Figure 13, in the present embodiment, in order to strengthen the fixing intensity of the first drawing pull bar mounting interface 12, drawing pull bar 16 is made to fixedly secure, being arranged above one piece of installing plate 41 at the first drawing pull bar mounting interface 12, two bolts 18 that each two is disposed adjacent are correspondingly arranged one piece of installing plate 41.Installing plate 41 is in step-like structure, subordinate's step is provided with two bolts hole, in order to installing plate 41 is fixed on the first drawing pull bar mounting interface 12 through bolt 43, higher level's step is provided with two bolts hole (not indicating in figure), these two bolts hole are the most corresponding through with the bolt hole on the first drawing pull bar mounting interface 12 of lower section, and two parts up and down of the first drawing pull bar mounting interface 12 are fixed together by bolt 18 also cross the bolt hole on the bolt hole on the first drawing pull bar mounting interface 12 and the higher level's step on installing plate 41.

As shown in Fig. 6, Figure 11 to Figure 15; slew gear 101 includes that slewing bearing 14 and car body connect seat 19; there is the containing cavity 13 of downward indent at the center of bolster 11 upper surface; slewing bearing 14 is installed in containing cavity 13; the border of slewing bearing 14 is connected by multiple bolts 15 are fixing with bolster 11; containing cavity 13 i.e. can protect slewing bearing 14, can improve again the bearing capacity of slewing bearing 14.The bolt hole 38 that one circle runs through is set on bolster 11, bolt hole 38 is counter sink, multiple bolts 15 are inserted in bolt hole 38 be connected fixing with slewing bearing 14 from bottom correspondence, the head of bolt 15 is positioned at the inside of counter sink after installing, such purpose is to install for convenience, the head avoiding bolt 15 extend out to the outside of bolster 11, also functions to the effect ensured.

As shown in figure 15, car body connects seat 19 in a discoid structure, car body connects the center of seat 19 and has by mouth 20, annular boss 24 is formed along being raised up by mouth 20, the underframe 23 that annular boss 24 is inserted into car body when mounted is internal, it is beneficial to location is installed, in being arranged by the periphery of mouth 20, outer two circle bolts, inner ring bolt 21 totally 12 fixing with the underframe 23 of car body be connected, outer ring bolt 22 totally 24 fixing with slewing bearing 14 be connected, outer ring bolt 22 connects fixing for vehicle body bottom frame 23 simultaneously, operator are facilitated to be arranged in slewing bearing 14 after car body connects seat 19 and underframe 23 is fixing being connected, by outer ring bolt 22, car body can be connected seat 19 from the top of vehicle body bottom frame 23 to fix with slewing bearing 14.Car body connects and is also setting up, by the periphery of mouth 20, the annular erecting bed 25 that a circle is downwardly projecting on the lower surface of seat 19, and the inside that annular erecting bed 25 is pressed into when mounted to slewing bearing 14 is fixed.It is the conical surface tilted to center position in the latter half of the outer circumference surface of annular erecting bed 25, plays preferable guide effect when mounted, be beneficial to install.Car body connection seat 19 is integrated and processes, and overall structure is simple, it is easy to processing, is also beneficial to install.

Bolster 11 is connected with the underframe 23 of car body by slewing bearing 14, vertical, vertical and horizontal load is carried by slewing bearing 14, slewing bearing 14 can realize 360 degree of rotations, realize the requirement of the too small curve of surface car (such as 25m), improve the little curve negotiation ability of vehicle.

As shown in Fig. 6, Figure 12, Figure 14 and Figure 15, bolster 11 is also equipped with a set of oil filling mechanism 26, for for slewing bearing 14 oiling, to ensure that slewing bearing 14 normally works.Oil filling mechanism 26 includes one group of pump nozzle 27, in the present embodiment, for ensureing oiling effect, lubricating oil is made to be distributed more uniformly across in slewing bearing 14, it is provided with four pump nozzles 27 altogether, four pump nozzles 27 connect four oil fuel tubes 28 respectively, and the end of four oil fuel tubes 28 is separately installed with a straight-through type pipe joint 40, and oil fuel tube 28 is by the connection of straight-through type pipe joint 40 with slewing bearing 14.

Four pump nozzles 27 are arranged in an oil nozzle mounting seat 29, and oil nozzle mounting seat 29 uses high abrasion-resistance nylon material integrated injection molding, directly take the center putting the containing cavity 13 at bolster 11, and i.e. four pump nozzles 27 are arranged on the center of slewing bearing 14.The annular erecting bed 25 that car body connects seat 19 is provided with four gap, for avoiding four oil fuel tubes 28 when being pressed into slewing bearing 14 and being internal.

Four pump nozzles 27 use self-sealed pump nozzle, inside has flexible member, when needs oiling, operator press downwards the self sealss closure 31 at pump nozzle 27 top, closure 31 is opened and can connect pouring orifice, at the end of oiling, it is only necessary to unclamp closure 31, closure 31 can pop up under the effect of flexible member and seal up pouring orifice.

As shown in Figure 16 and Figure 17; oil nozzle mounting seat 29 entirety is column structure; cylindrical bottom is taken and is put on bolster 11; cylindrical border is provided with the vertical receiving chamber 30 of the substantially semicircular in shape of four indents extended in the vertical direction; four pump nozzles 27 are separately mounted in four vertical receiving chambeies 30; the pump nozzle 27 installed therein is not only played the effect of support by vertical receiving chamber 30, and pump nozzle 27 also plays in vehicle motor process the effect of protection simultaneously.

On the border of oil nozzle mounting seat 29 in addition to the vertical receiving chamber 30 of vertically extending setting, also having the first of the setting around cylinder excircle extended transversely and laterally contain chamber 32, four oil fuel tubes 28 are connected by the bottom of pipe joint and four pump nozzles 27 respectively.As shown in figure 14, four oil fuel tubes 28 are fixed by band 33 after connecting, and fixedly secure in oil nozzle mounting seat 29 by four oil fuel tubes 28, and band 33 is bundled in the first position laterally containing chamber 32.Utilize band 33 to bundle not only can be prevented effectively from vehicle operation and make loose or dislocation between oil fuel tube 28 and pump nozzle 27, also make dismounting very convenient.Extend transversely on the cylinder excircle and be additionally provided with second and laterally contain chamber 98; second laterally contains chamber 98 is positioned at the first lower section laterally containing chamber 32; oil fuel tube 28 is bending laterally in bottom; arrange second to laterally contain chamber 98 and facilitate oil fuel tube 28 bending herein, oil fuel tube 28 is also functioned to the effect of protection.Because oil fuel tube 28 is copper pipe, utilizing the pump nozzle 27 of the i.e. sustainable top of intensity of itself, bundle oil fuel tube 28 by band 33 and can realize fixing pump nozzle 27, mounting structure is simple and convenient.

Seat 19 is connected centrally through the lamina tecti 102 being provided with an activity on the vehicle body bottom frame above mouth 20 at corresponding car body, when needs oiling, open lamina tecti 102 and can spill the pump nozzle 27 of lower section, oiling terminates rear top cover plate 102, not only can realize at any time slewing bearing 14 being carried out oiling, also facilitate simple and direct, also allow for regular maintenance.

As is illustrated by figs. 11 and 12, on two angles of bolster 11 upper surface, it is additionally provided with two cavitys 34, cavity 34 is set herein and can play the effect of reinforcement, improve structural strength and the rigidity of whole bolster 11.Also having a discharge outlet 35 in two cavitys 34, discharge outlet 35 runs through bolster 11, to facilitate the rainwater accumulated in in cavity 34 and flushing water to discharge.As is illustrated by figs. 11 and 12, four at bolster 11 are also respectively provided with the first outwardly reinforcement 36 outside the side of centre convergence.

As shown in figure 13, on the lower surface of bolster 11, it is positioned at the marginal position outside framework 2 and is also equipped with two vibroshock mounting seats 37 extended downwardly from, lateral damper 9 and vertical damper 10 are fixedly mounted in vibroshock mounting seat 37 by bolt 90, vibroshock mounting seat 37 is two be arranged side by side, one of them is used for fixing a lateral damper 9 and a vertical damper 10, and another is used for fixing another vertical damper 10.First reinforcement 36 and vibroshock mounting seat 37 are one-body molded with bolster 11, and and bolster 11 between arc transition, the setting of the first reinforcement 36 and vibroshock mounting seat 37 can improve structural strength and the rigidity of whole bolster 11 further.

As shown in Fig. 4, Fig. 6, Figure 13 and Figure 14, extending downwardly from an extension 45 in the center of the lower surface of bolster 11, extension 45 is one-body molded with bolster 11, it is also possible to be welded and fixed.As in figure 2 it is shown, corresponding extension 45, being provided with an opening 46 inserted for extension 45, the structure that opening 46 is rectangle on the end carriage 82 of framework 2, the length in cross-car is more than the length on car body is longitudinal.Corresponding two bolster 11, are provided with an opening 46 on two end carriages 82.

As shown in Figure 6, the sidewall of each opening 46 both lateral sides is provided with two horizontal backstops 47, the while of two horizontal backstops 47, below two lateral bolster 11, the direction of extension 45 is stretched out, extension 45 below bolster 11 stretches between two horizontal backstops 47, and and laterally leaves horizontal backstop gap between backstop 47.The effect of the most laterally backstop is played, to limit the vehicle lateral displacement beyond normal degree of freedom, in order to avoid vehicle to pass through the dangerous working conditions such as some small curve radius generation rollovers in vehicle operation.

As shown in figure 18, in the present embodiment, laterally backstop 47 is made up of three-decker, it is respectively wearing layer 47a, rubber layer 47b and backplane level, wearing layer 47a is positioned at the top layer that the extension 45 with bolster 11 contacts, and is contacted with the extension 45 of bolster 11 by wearing layer 47a, and wearing layer 47a uses the nylon material of high abrasion characteristic, utilize nylon material to have wear-resisting feature, improve the service life of horizontal backstop 47.Rubber layer 47b is arranged between wearing layer 47a and backplane level, and rubber layer 47b is one-body molded with backplane level sulfuration, and wearing layer 47a and rubber layer 47b sticks with glue together with knot.As shown in Figure 6, backplane level is fixed on the sidewall of the opening 46 on end carriage 82 by bolt 48.As shown in figure 18, backplane level is made up of three parts, it is respectively the first base plate 47c, the second base plate 47d and the 3rd base plate 47e, first base plate 47c is positioned at the bottommost of backplane level, the center of the first base plate 47c has an opening, the tubular second base plate 47d, second base plate 47d thicker at opening part throat thickness stretch to the inside of rubber layer 47b, have internal thread hole 47f at the center of the second base plate 47d.Internal thread hole 47f runs through the second base plate 47d, 3rd base plate 47e is arranged on the top of internal thread hole 47e, play the effect of backstop, can ensure that the structural strength of junction, the first base plate 47c, the second base plate 47d and the 3rd base plate 47e form with rubber layer 47b integrated vulcanizing simultaneously.Internal thread hole 47f can also use the gap structure not through the second base plate 47d, the most then need not additionally arrange the 3rd base plate 47e.As shown in Figure 6, the sidewall of end carriage 82 has installing hole 50, it is connected through the installing hole 50 on end carriage 82 is fixing with the internal thread hole 47f on horizontal backstop 47 backplane level by bolt 48, and then horizontal backstop 47 is fixed on end carriage 82, between installing hole 50 and the head of bolt 48 on end carriage 82 sidewall, a setting-up piece (not indicating in figure) is installed.

This horizontal backstop 47 is under the elastic characteristic ensureing horizontal backstop 47 requires, ensure that good stiffness curve performance, meet lateral displacement under the most severe operation situation to reduce to greatest extent, significantly reduce vehicle traversing time bring rock, improve running stability, add the comfortableness taken, and simple in construction, dependable performance, durability characteristics is strong.

When installing horizontal backstop 47, existing car is needed to regulate the horizontal backstop gap size between top and the extension 45 of bolster 11 of horizontal backstop 47, between the first base plate 47c and the sidewall of end carriage 82 of horizontal backstop 47, pad one or more adjustment pad 49 again, easy to adjust fast.

As shown in Figure 4, respectively stretch out a longitudinal stopper section 42 to the direction of extension 45 on two sidewalls on the inside of opening 46 is longitudinal, the effect of longitudinal load-bearing is played in longitudinal stopper section 42, and when drawing pull bar 16 lost efficacy, longitudinal stopper section 42 coordinates with extension 45 and remains to drive vehicle operation.

Vehicle is when high-speed cruising, owing to circuit question can produce vertical vibration, and then car body can be produced vertical impact, in order to avoid there is overshoot phenomenon, limit the vertical vibration distance that car body is maximum, avoid exceeding gauge, as shown in Fig. 6 and Figure 14, in the present embodiment, between the end carriage 82 of bolster 11 and framework 2, it is additionally provided with lift, lift not only can limit the vertical vibration distance that car body is maximum, may also operate as the effect of bogie integral lifting simultaneously.

As shown in Fig. 6 and Figure 14, lift is two lifting bars 51, it is arranged on the lower surface of bolster 11, two lifting bars 51 are symmetricly set on the both sides that extension 45 is horizontal, in order to ensure bonding strength during lifting, can keep balance during lifting, the structure of two lifting bars 51 is identical simultaneously, the top of lifting bar 51 is connected with bolster 11, and the bottom of lifting bar 51 is connected with the end carriage 82 of framework 2.

As shown in figure 19, lifting bar 51 main body is an elongated cylinder, and the top of lifting bar 51 has a T-shaped head, and the dual-side of T-shaped head has spline plane 57, and the bottom of lifting bar 51 has external screw thread, and externally threaded top has one section of bigger stopper section of diameter 61.

nullAs shown in Fig. 6 and Figure 14，Fixing port 52 is had needing to install on bolster 11 lower surface of lifting bar 51，One piece of backing plate 53 is i.e. installed at the top end of lifting bar 51 in the inside of fixing port 52，The excircle of fixing port 52 is installed one piece of locking backing plate 54，The inner ring of locking backing plate 54 has two straight lines relative with the spline plane 57 of lifting bar 51，Rotate for limiting lifting bar 51，In the lower section of locking backing plate 54, one piece of mounting blocks 55 is installed again，The inner ring of mounting blocks 55 has the conical surface matched in the T-shaped head bottom surface with lifting bar 51，The bottom of the outer ring of mounting blocks 55 has step-like structure，Step-like position arranges four bolts hole，By four bolts 56, mounting blocks 55 is fixed together with bolster 11，Lifting bar 51 its T-shaped head after mounting is mounted block 55 and blocks，Simultaneously，Mounting blocks 55 also has the annular groove of a circle indent，It is filled with sealing ring 58 therein，The effect fixedly secured further is also functioned to while the effect playing sealing.

As shown in Figure 6, on the end carriage 82 of framework 2, corresponding every lifting bar 51 has lifting opening 59, lifting opening 59 symmetry is opened in the both sides of opening 46, one bayonet socket 60 is installed in the bottom of lifting bar 51, the diameter of bayonet socket 60 is more than the diameter of lifting opening 59, bayonet socket 60 has a vertical distance apart from lifting opening 59, and this distance is the maximum vertical vibration distance of permission.The bottom inner ring of bayonet socket 60 has the conical surface, in the lower section of bayonet socket 60, a positioning block 62 is installed, have on the upper surface of locating piece 62 and the conical surface of bayonet socket 60 cone match, the inner ring of locating piece 62 has step-like structure, step-like structure stopper section 61 with lifting bar 51 after mounting leans, play the effect of location backstop, the lower section of locating piece 62 is tightened a nut 63 and is realized fixing in the bottom of lifting bar 51, inner ring at bayonet socket 60 has the annular groove of an annular indent, one O-ring seals 64 is installed in annular groove, the effect of fixing bayonet socket 60 is also functioned to while the effect playing sealing.After installation, if bolster 11 moves up on vertical, the bayonet socket 60 bottom lifting bar 51 i.e. may be stuck at lifting opening 59, and then can avoid punching.Meanwhile, this lifting bar 51 is when lifting, and bayonet socket 60 is stuck on framework 2, it is achieved bogie and the integral lifting of car body.

As shown in Figure 6; in order to protect lifting bar 51; end carriage 82 at lifting opening 59 has concave up fovea superior part 65, and the installing hole 50 of the bolt 48 for installing horizontal backstop 47 is opened in the sidewall of this fovea superior part 65, and lifting opening 59 is opened on the roof of this fovea superior part 65.Fovea superior part 65 is not only convenient installs horizontal backstop 18 and the installation of lifting bar 51, also allow for regular maintenance, without additionally arranging the structures such as horizontal backstop mounting seat, vertical backstop mounting seat, simplify the structure of bogie 1 to a certain extent, also mitigate the weight of bogie 1.

As shown in Fig. 6 and Figure 20, arranging two groups of secondary springs composition 8 between each bolster 11 and framework 2, two groups of secondary spring compositions 8 are along the lateral symmetry outside being arranged on two lifting bars 51 of framework 2, and the structure of two groups of secondary spring compositions 8 is identical.

As shown in figure 21, secondary spring composition 8 is made up of the spring of upper padding plate 66, lower bolster 67 and centre, middle spring section uses double steel coil spring, it is made up of interior spring 68 and outer spring 69, not only compact overall structure, stability is good, it is also possible to improve the stability that vehicle runs, meet the requirement of big volume of passenger traffic carrying, be particularly well-suited to the low-floor city railway vehicle that between car body and bogie, space is nervous.

Upper padding plate 66 is made up of the rubber layer 66c of upper strata metallic plate 66a, lower metal plate 66b and centre, and rubber layer 66c and upper strata metallic plate 66a, lower metal plate 66b sulfide, and upper padding plate 66 has a centre bore 66d.nullAs shown in Figure 14 Figure 20，Corresponding upper padding plate 66 arranges first mounting groove 70 on the lower surface of bolster 11，There is the installation portion 71 of downwardly projecting annular at the center of the first mounting groove 70，Installation portion 71 matches to merge with centre bore 66d and is inserted in centre bore 66d，Play the effect that location is fixing，The diameter of the first mounting groove 70 coordinates with upper padding plate 66，Realize fixing in making upper padding plate 66 be stuck in the first mounting groove 70，Centre bore 66d is stuck at installation portion 71 simultaneously，And then realize upper padding plate 66 and be connected with the fixing of bolster 11，Without using traditional bolted mode between upper padding plate 66 and bolster 11，Make installing/dismounting the most simple and convenient，Make installing/dismounting the most simple and convenient，Decrease the operation and maintenance of securing member，And it is the compactest to make secondary spring form 8 structures，So that this device is more suitable for the low-floor rail vehicle that between car body and bogie, space is nervous.

Lower surface at the lower metal plate 66b of upper padding plate 66 has downwardly projecting upper spring positioning convex 66e ringwise, upper spring positioning convex 666e is between interior spring 68 and outer spring 69, and upper spring positioning convex 666e is metallic plate and welds together or one-body molded with lower metal plate 66b.

As shown in Fig. 2, Figure 20 and Figure 21, on the end carriage 82 of framework 2, corresponding each secondary spring composition 8 is provided with the second mounting groove 72, and the diameter of the second mounting groove 72 coordinates with lower bolster 67, realizes fixing in making lower bolster 67 be stuck in the second mounting groove 72.Lower bolster 67 is made up of positioning seat 67a and adjusting pad, positioning seat 67a for metallic plate, there is on the upper surface of positioning seat 67a a lower spring positioning convex 67b ringwise protruding upward equally, lower spring positioning convex 67b is between interior spring 68 and outer spring 69, lower spring positioning convex 67b is metallic plate, welds together or one-body molded with positioning seat 67a.After installation, lower bolster 67 fixes and realizes fixing being connected between secondary spring composition 8 and end carriage 82 bottom the second mounting groove 72 of framework 2, without using traditional bolted mode as between lower bolster 67 with end carriage 82, make installing/dismounting the most simple and convenient, decrease the operation and maintenance of securing member, make secondary spring form 8 structures the most further the compactest.The second mounting groove 72 on end carriage 82, for turbination structure, while fixing secondary spring composition 8, it is also possible to avoid when vehicle runs, the inwall collision of secondary spring composition 8 and the second mounting groove 72.In the present embodiment, the second mounting groove 72 uses the structure of sunk type, reduce further the height of floor.

Upper spring positioning convex 666e and lower spring positioning convex 67b mono-aspect serve damping effect, on the other hand, interior spring 68 and outer spring 69 are separated by this " protruding " structure, when vehicle needs by little curve, i.e. when the secondary spring composition 8 big displacement of generation, decrease interior spring 68 and the probability of outer spring 69 collision, efficiently avoid the unstability of secondary spring composition 8.

The adjusting pad of lower bolster 67 is divided into two kinds of different structures, one is interior spring adjusting pad 67c, interior spring adjusting pad 67c is rubber blanket, it is arranged on the bottom of the interior spring 68 of inner ring of lower spring positioning convex 67b, for the adjustment of spring 68 in ordinance load compression relative superiority or inferiority, another kind is outer spring adjusting pad 67d, outer spring adjusting pad 67d is rubber blanket, the outer ring being arranged on lower spring positioning convex 67b is the bottom of outer spring 69, adjustment for outer spring 69, high with spring 68 and outer spring 69 compression under same service load in ensureing, and then ensure operating steadily between car body and bogie.Meanwhile, upper padding plate 66 utilize the pliability of rubber layer 66c to significantly reduce vibration and impact that steel spring brings.

Being provided with tubular protective cover 73 between the first mounting groove 70 and the second mounting groove 72, secondary spring composition 8 is enclosed in protective cover 73, and protective cover 73 is preferably made up of the nitrile rubber integrated vulcanizing of oil resistant, fine corrosion resistance.Protective cover 73 is made up of upper Access Division, middle cylindrical part and lower Access Division; middle cylindrical part uses wavy shaped configuration; upper Access Division and lower Access Division are sealedly and fixedly connected respectively on the first mounting groove 70 and the second mounting groove 72; it is not only advantageous to the installation and removal of protective cover 73; also secondary spring composition 8 is sealed in protective cover 73; prevent greasy dirt, water droplet etc. from penetrating in the framework of framework, cause corrosion.It addition, during vehicle runs, dustproof construction itself becomes " wave " shape, it is achieved that folding characteristic, to adapt to the sealing of steel spring deformation under different loads.

As shown in Figure 20 and Figure 21, in the present embodiment, being additionally provided with a vertical backstop 74 at the center of interior spring 68, vertical backstop 74 is fixed on the upper padding plate 66 in secondary spring composition 8.Vertical backstop 74 is by rubber 74a, base plate 74b and baffle plate 74c composition, rubber 74a and base plate 74b and baffle plate 74c sulfides molding, rubber 74a is positioned at the lower section of base plate 74b, the center of base plate 74b has an internal thread hole (not indicating in figure), baffle plate 74c is positioned at the bottom of internal thread hole, base plate 74b and baffle plate 74c uses metallic plate, even if the situation that secondary spring ruptures occurs, vertical backstop 74 coordinates with boss 76 also can be as safety supports, ensure the driving safety of rail vehicle, the center of the lower metal plate 66b of the upper padding plate 66 in secondary spring composition 8 has an installing hole, it is fixed together by bolt 75 between base plate 74b and lower metal plate 66b.It is additionally provided with adjustment plate 74d, the vertical backstop gap regulating between the bottom of vertical backstop 77 and protruding 76 tops in time installing between base plate 74b and upper padding plate 66.

As shown in figure 20, in the second mounting groove 72 of end carriage 82, it is provided with a projection 76 upwards, protruding 76 with framework 2 integrally casting out, the center of the lower bolster 67 in secondary spring composition 8 has opening, and protruding 76 are inserted in the opening of lower bolster 67 after mounting, and stretch to the inside of interior spring 68, with vertical backstop 74 just to setting, between bottom and the top of protruding 76 of vertical backstop 74, there is vertical backstop gap.When vehicle is properly functioning, do not contact between the bottom of vertical backstop 74 and the top of protruding 76, only in the case of load capacity is relatively big, when secondary spring composition 8 is compressed, the bottom of vertical backstop 74 and protruding 76 top contact, vertical backstop 74 is also further compressed, rigidity linear due to double steel coil springs, the rigidity of the vertical backstop 74 of elastomeric material is non-linear, when load capacity is bigger, vertical backstop 74 contacts with the projection 76 in the second mounting groove 72 and is compressed, while playing backstop action, also function to the effect of variation rigidity, be conducive to improving the dynamic performance that vehicle runs.

As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the center crossbeam 77 of framework 2 has the cannelure 83 of the strip extended transversely, cannelure 83 respectively arranges one on the upper and lower surface of center crossbeam 77, the structural strength that can increase herein is connected in the middle of center crossbeam 77, improving bearing capacity, upper and lower two strip grooves 83 can also run through setting.Two sidewalls of the cannelure 83 of center crossbeam 77 are installed with the second drawing pull bar mounting interface 84 respectively, four the second drawing pull bar mounting interfaces 84 are installed on each sidewall, four the second drawing pull bar mounting interfaces 84 be disposed side by side on cannelure 83 side sidewall on, middle two the second drawing pull bar mounting interfaces 84 are closely packed together fixing or are integral type structure, and four the second drawing pull bar mounting interfaces 84 are for fixing four connection seat 16c of two drawing pull bar 16 ends.Cannelure 83 is set at center crossbeam 77, is very easy to the dismounting of the second drawing pull bar mounting interface 84.

Second drawing pull bar mounting interface 84 is designed to Split type structure, it is divided into left and right two parts, there is in each part half circular mounting mouth, the second complete installing port 39 is formed after two part snap-fit, for accommodating the connection seat 16c of drawing pull bar 16 end, the sidewall of one of center crossbeam 77 with framework 2 is fixing to be connected, at the center of this block the second drawing pull bar mounting interface 84, there is a smooth bore, on the sidewall of center crossbeam 77, correspondingly it is also equipped with having female screwed hole, by bolt 85, this block is fixed together with center crossbeam 77.In order to avoid bolt 85 affects the installation of drawing pull bar 16 after mounting, the inwall of this block the second drawing pull bar mounting interface 84 arranges a groove 103, in order to accommodate the head of bolt 85.Two connection seat 16c of drawing pull bar 16 end are correspondingly placed in the semicircle installing port of both sides, again another block is fastened, and with four bolts 86, two pieces are fixed together, and then the connection seat 16c of drawing pull bar 16 end is fixed, nut 104 for 86 ends that tight a bolt stretches into from the center of cannelure 83, it is inserted into the afterbody of bolt 86 and tightens, two nuts 104 of each installation in upper and lower two cannelures 83, get final product the fixing of complete drawing pull bar 16, operate the most simple and convenient, installation effectiveness is greatly improved.As when the first drawing pull bar mounting interface 12 is installed, during installation in the pin-and-hole 78 connecting seat 16c installation one alignment pin 79, coordinate with the pin-and-hole on the second drawing pull bar mounting interface 84, make drawing pull bar 16 accurately to install, and installation effectiveness can be improved.

In the present embodiment, cylindrical connection seat 16c is set in the end of drawing pull bar 16, coordinates with circular first installing port 17 of the first drawing pull bar mounting interface 12 and the second drawing pull bar mounting interface 84 and the second installing port 39 and fix, longitudinally transmission power is realized by complete circular binding face, not only can improve longitudinal transmission capacity, and abrasion can be alleviated, the two ends of drawing pull bar 16 arrange ball pivot simultaneously, make it have less lateral stiffness, meet lateral displacement big between car body and bogie and length travel, improve longitudinal traction ability and anti-side rolling ability, improve the overall performance of traction apparatus.

As shown in Fig. 3, Fig. 7 and Fig. 8, one lateral damper 9 and two vertical dampers 10 are installed in the vibroshock mounting seat 37 outside each bolster 11, the both sides in the cross-car of lateral damper 9 put by two vertical dampers 10, vibroshock mounting seat 37 is set to two, one lateral damper 9 and a vertical damper 10 are installed in a vibroshock mounting seat 37 wherein, installing a vertical damper 10 in another vibroshock mounting seat 37, the other end of lateral damper 9 and vertical damper 10 is fixing with the end carriage 82 of framework 2 to be connected.

As shown in Figure 7, lateral damper 9 is identical with the structure of vertical damper 10, by vibroshock body 87, head rod 88, second connecting rod 89 forms, there are on the shell of vibroshock body 87 four installing holes, it is fixed in the vibroshock mounting seat 37 of bolster 11 by bolt 90 respectively, one end of head rod 88 is fixing with vibroshock body 87 to be connected, the other end and the second connecting rod 89 connect, the other end of the second connecting rod 89 is connected with framework 2, the sidewall of end carriage 82 is provided with lateral damper and fixes seat 100 and seat 99 fixed by vertical damper, the other end of the second connecting rod 89 is connected to the lateral damper of end carriage 82 and fixes seat 100 or vertical damper is fixed on seat 99.Seat 100 is fixed at the two ends of the second connecting rod 89 with head rod 88 and lateral damper or vertical damper is fixed and is all connected by an oscillating bearing 91 between seat 99.The outer ring of oscillating bearing 91 is connected with the second connecting rod 89, the inner ring of oscillating bearing 91 is installed and is connected a connecting shaft 92, connecting shaft 92 is stretched out from side and is inserted into the lateral damper of framework 2 and fixes seat 100 or vertical damper is fixed the installing hole of seat 99, and is fixed by puller bolt.Attachment structure between second connecting rod 89 and the first head rod 88 is same.

As shown in Figure 8, in the present embodiment, second connecting rod 89 is divided into two sections, centre is connected by one section of connecting rod 105, being threaded connection between connecting rod 105 and two section of second connecting rod 89, this structure can facilitate the head rod 88 at the second connecting rod 89 and two ends and lateral damper to fix seat 100 or vertical damper fixes that seat 99 is fixing to be connected.

As shown in Figure 7 and Figure 8, the outside at the oscillating bearing 91 at the second connecting rod 89 two ends is respectively cased with a dust cover 93.As shown in figure 22, dust cover 93 is made for elastomeric material, there is two openings 94 and opening 95, opening 94 and opening 95 towards in 90 degree, one opening 94 is used for overlapping the second connecting rod 89, another opening 95 was for overlapping the connecting shaft 92 being connected with the second connecting rod 89, the diameter of opening 95 is slightly less than the diameter of connecting shaft 92, and its round edge is taper, herein can tight seal after making to install, the diameter of another opening 94 is bigger, convenient installation, is tightened by band 96 and be fixed in the second connecting rod 89 after installation.At dust cover 93 near the position of opening 95, there is wave structure, improving enough distortion allowances.On oscillating bearing 91 below the second connecting rod 89, also there is pouring orifice 97.

As shown in Figure 7, the head rod 88 of lateral damper 9 is vertical setting, its second connecting rod 89 is horizontally set, the head rod 88 of vertical damper 10 is horizontally set, its second connecting rod 89 is vertical setting, owing to each junction all uses oscillating bearing 91 to connect, when producing oscillation crosswise or vertical vibration when the vehicle is running, second connecting rod 89 horizontal or vertical on can in certain angle swing, and then drive head rod 88 to swing, vibroshock body 87 limits the pendulum angle of head rod 88, and then play in the horizontal with vertical on damping effect.

Lateral damper 9 and vertical damper 10 are arranged between the sidepiece of the sidewall of bolster 11 and the end carriage 82 of framework 2 by this utility model, and vibroshock body 87 is connected with the framework 2 as vibration source by head rod 88 and the second connecting rod 89, not only the rotary motion of vibroshock body 87 is changed into the linear motion of the second connecting rod 89, effectively achieve the horizontal and amplification of vertical deviation, the damping regulating effect making vibroshock strengthens, regulate more flexible, also the structure making bogie is simpler compact, is more favorable to reduce height of floor from rail top.

As it has been described above, combine the plan content given by accompanying drawing, similar technical scheme can be derived.In every case it is the content without departing from technical solutions of the utility model, any simple modification, equivalent variations and modification above example made according to technical spirit of the present utility model, all still fall within the range of technical solutions of the utility model.

Claims (16)

1. a low-floor rail vehicle bogie secondary suspension device, forms including bolster, it is characterised in that: institute State side and the drawing pull bar of bolster composition to form and be connected, described bolster form relative to described drawing pull bar group The opposite side become is provided with crossbeam vibroshock and vertical damper, the other end of crossbeam vibroshock and vertical damper with Framework connects, and described bolster composition is connected with car body by slew gear, installs between described bolster composition and framework Secondary spring forms.

A kind of low-floor rail vehicle bogie secondary suspension device the most according to claim 1, its feature exists In: described bolster consists of two groups, two groups of bolster composition be symmetricly set on be framed in car body longitudinally on both sides, two Organize described bolster composition be separately positioned on two groups wheel to centre.

A kind of low-floor rail vehicle bogie secondary suspension device the most according to claim 1 and 2, its feature It is: described bolster composition includes bolster, is provided with multiple the be connected with drawing pull bar in the side of described bolster One drawing pull bar mounting interface, the opposite side at described bolster is provided with for fixed cross beam vibroshock and Vertical Vibration Reduction The vibroshock mounting seat of device.

A kind of low-floor rail vehicle bogie secondary suspension device the most according to claim 3, its feature exists It is in the most vertically extending part of the side of described bolster in: described vibroshock mounting seat.

A kind of low-floor rail vehicle bogie secondary suspension device the most according to claim 3, its feature exists In: extend downwardly from an extension in the center of the lower surface of described bolster, described extension is inserted at structure In the opening arranged on frame.

A kind of low-floor rail vehicle bogie secondary suspension device the most according to claim 1, its feature exists In: described bolster consists of integrally casting structure.

A kind of low-floor rail vehicle bogie secondary suspension device the most according to claim 5, its feature exists In: it is separately installed with horizontal backstop, described bolster on the horizontal both sides sidewall of the opening arranged on described framework The extension of lower section stretches between two described horizontal backstops, and and laterally leaves horizontal backstop gap between backstop.

A kind of low-floor rail vehicle bogie secondary suspension device the most according to claim 3, its feature exists In: described first drawing pull bar mounting interface is the structure of split, is respectively arranged with half in two parts of split Circular opening also collectively constitutes circular the first installing port for installing drawing pull bar, two parts after fastening It is bolted to connection.

A kind of low-floor rail vehicle bogie secondary suspension device the most according to claim 1 and 2, its feature It is: between lower surface and the framework that described bolster forms, lift is installed.

A kind of low-floor rail vehicle bogie secondary suspension device the most according to claim 9, its feature exists In: described lift is two lifting bars, and two described lifting bars are symmetricly set on described bolster along cross-car The lower section of composition.

11. a kind of low-floor rail vehicle bogie secondary suspension devices according to claim 3, its feature exists In: described slew gear includes that slewing bearing and car body connect seat, and described slewing bearing is fixedly mounted on On bolster, described car body connects the top of seat and is fixed on car body, and bottom is fixed in described slewing bearing, Being provided centrally with for the oil filling mechanism for described slewing bearing oiling at described slewing bearing.

12. a kind of low-floor rail vehicle bogie secondary suspension devices according to claim 11, its feature Being: described oil filling mechanism includes one group of pump nozzle, pump nozzle is connected with slewing bearing by oil fuel tube, note Oil nozzle is arranged in an oil nozzle mounting seat, and described oil nozzle mounting seat is fixed on the bolster at slewing bearing center On surface.

13. a kind of low-floor rail vehicle bogie secondary suspension devices according to claim 12, its feature It is: described oil nozzle mounting seat is column structure, cylindrical border is provided with one or more along Vertical Square The vertical receiving chamber of the substantially semicircular in shape of upwardly extending indent and around cylinder excircle arrange first horizontal Accommodating chamber, install a pump nozzle at each vertical receiving intracavity, the oil fuel tube being connected with pump nozzle is horizontal first The position accommodating chamber is fixing by band binding.

14. a kind of low-floor rail vehicle bogie secondary suspension devices according to claim 1 and 2, it is special Levy and be: between described bolster composition and framework, be provided with secondary spring composition described in two groups.

15. a kind of low-floor rail vehicle bogie secondary suspension devices according to claim 14, its feature It is: described secondary spring composition is made up of the spring of upper padding plate, lower bolster and centre, in the inside of described spring Being additionally provided with a vertical backstop, described vertical backstop is fixed on described upper padding plate, is architecturally correspondingly arranged on one Projection upwards, described projection stretches to the inside of described spring after mounting, and with vertical backstop just to setting, There is between bottom and the top of projection of described vertical backstop vertical backstop gap.

16. 1 kinds of bogies, it is characterised in that: install just like any one of claim 1-15 on described bogie Described bogie secondary suspension device.