CN107697093B - A kind of key component applied to gauge-changeable bogie - Google Patents

Abstract

The invention belongs to bogie systems technology fields, and in particular to a kind of key component applied to gauge-changeable bogie, including locking member and unlock piece；Locking member includes locking bar；Locking bar is slidably connected with axle box, and the top of locking bar is located in axle box, and lower part is extend out to outside axle box from axle box；Unlock piece includes chassis, and chassis is in the shape of the letter V, and the both ends of chassis are connect with the lower end of locking bar respectively.It is an object of the invention to: when passing through the railway of different gauges for train, there is a problem of that conevying efficiency is low, a kind of unlock piece is provided, the unlock piece is applied on bogie, make wheel that can lock and unlock after being adjusted axially relative to axle, to realize that the wheel of transformation bogie adapts to wheelspan the railway of different gauges.Carry out the railway transportation of " Silk Road economy-zone ", it is necessary to face the skimble-scamble problem of gauge.Therefore, the design for carrying out changeable identity system has particularly significant and profound significance.

Description

A kind of key component applied to gauge-changeable bogie

Technical field

The invention belongs to bogie systems technology fields, and in particular, to a kind of key applied to gauge-changeable bogie Component.

Background technique

Due to history, the railway in country variant and area uses different gauge specifications.

Currently, there are two types of scheme is available in railway of the train Jing Guo different gauge specifications.First is that transhipment container Mode lifts container to the train of another gauge specification from a kind of train of gauge specification；Second is that replacement bogie Mode, i.e., train support device is jacked up hanging, then a kind of bogie of gauge specification is unloaded, another gauge is installed The bogie of specification.Both means of transportation inefficiency bring many restrictions to international combined transport is carried out.

Summary of the invention

It is an object of the invention to: when passing through the railway of different gauges for train, there is a problem of that conevying efficiency is low, mention For a kind of unlock piece applied to gauge-changeable bogie, which is applied on bogie, wheel is made to exist relative to axle It can lock and unlock after being adjusted axially, to realize that the wheel of transformation bogie adapts to wheelspan the railway of different gauges.

To achieve the goals above, the technical solution adopted by the present invention are as follows:

A kind of key component applied to gauge-changeable bogie, including locking member and unlock piece；The locking member includes lock Bar；The locking bar is slidably connected with axle box, and the top of the locking bar is located in the axle box, and lower part extend out to axis from the axle box Outside case；The unlock piece includes chassis, and the chassis is in the shape of the letter V, and the both ends of the chassis are connect with the lower end of locking bar respectively.Lock Bar is slidably connected with axle box, and upper part realizes locking and unlock for connecting closing piece, on the basis of wheel can move axially, Provide the mode of a kind of axial locking and unlock.However, the locking bar of locking member works independently, it is nonsynchronous to be easy to happen movement Problem.Specifically, if a closing piece movement travel is excessive, mechanical damage can be caused to other component.And another closing piece Movement travel is too small, then will lead to unlock or locking not exclusively, and locking not exclusively then causes wheel portion firm, brings the wind such as derailing Danger；Unlock not exclusively then causes the case where can not unlocking, unlock by force, and then generates mechanical damage to other component.Compared to The top of the mode that the locking bar of locking member is individually unlocked, chassis connects locking bar, and V-Bottom frame can pass through intermediate minimum point stress Lifting, rises two check lock levers of left and right with cloth, and synchronizing unlocking avoids the occurrence of the above problem completely.

Preferably, the both ends of the chassis are provided with the pallet for backstop reset spring, and the locking bar passes through The reset spring is connect with the pallet, and the reset spring is between the axle box and the pallet.It will be answered when installation Position spring is located on pallet, and the other end of spring is contacted with axle box bottom, and the two may be implemented in the automatically lock after unlock.

Preferably, the locking member further includes locating rod, the both ends of the locating rod respectively with the upper end of locking bar Connection forms an inverted U-shaped.The connection of the top of locating rod and locking bar plays limitation reset spring and continues to pull downward on locking bar Effect, locating rod spring-assisted reduction realizes automatic unlocking effect.

Preferably, on the pallet and lower end of the locking bar is provided with the screw hole to match each other, and the two passes through It is bolted.In the through-hole of locking bar insertion axle box, can mutually be installed with the pallet of unlock piece after stretching.V-Bottom frame passes through pallet It is connected with locking bar, therefore screw hole is set among pallet, is secured together the two by bolt.

Preferably, the both ends of the chassis are provided with buffer board, and the buffer board is an elastic plate, and plate The planar horizontal at place.Pallet is connected by elastic buffer plate with V-Bottom frame, in the lifting of chassis stress, if bogie enters The excessive velocities for becoming rail will receive greater impact power, and certain stress deformation can occur for elastic buffer plate, mitigate impact force, protection Locking member and other auxiliary facilities.

Preferably, the section of the locking bar is circle.I.e. locking bar is cylindric, and the vertical locking bar in two sides is using circle The phenomenon that cylindricality can preferably realize the effect of sliding, not generate clamping.Cylindrical bar slides in the circular hole of axle box to be had more High reliability.Compared to rectangle or other shapes, clamping phenomenon caused by cylinder can prevent impulse force excessive.

In conclusion by adopting the above-described technical solution, compared with the prior art, the beneficial effects of the present invention are: opening Open up the railway transportation of " Silk Road economy-zone ", it is necessary to face the skimble-scamble problem of gauge.And solve gauge specification Disunity, a kind of most economical, effective method are to be equipped with changeable identity for train.Therefore, the present invention provides one The design scheme of kind changeable identity system, the profound significance with particularly significant.Compared to conventional rail away from fixed Bogie, this programme make train bogie when by the railway of different gauges, and bogie wheel can be relative to axle in axis It is adjusted up, to realize that the wheel of transformation bogie adapts to wheelspan the railway of different gauges.This means of transportation efficiency pole Height saves operation, brings great convenience to international combined transport is carried out.

Detailed description of the invention

Fig. 1 is the perspective view of axle, and Fig. 2 is the sectional view of axle, and Fig. 3 is the perspective view of bearing wheel one mounting base, Fig. 4 is the sectional view of bearing wheel one mounting base, and Fig. 5 is the perspective view of axle assembly, and Fig. 6 is the main view of axle assembly.

Fig. 7 is the perspective view of sliding part, and Fig. 8 is the main view of sliding part, and Fig. 9 is the side view of sliding part, and Figure 10 is sliding The top view of moving part, Figure 11 are the perspective views of locking member, and Figure 12 is the main view of locking member, and Figure 13 is the perspective view of unlock piece One, Figure 14 are the main views of unlock piece, and Figure 15 is the perspective view two of unlock piece.

Figure 16 is the perspective view of axlebox assemblies, and Figure 17 is the perspective view of upper axle box, and Figure 18 is the perspective view one of lower axle box, figure 19 be the perspective view two of lower axle box, and Figure 20 is the sectional stereogram of axle box, and Figure 21 is the sectional front view of axle box, and Figure 22 is skirtboard Perspective view one, Figure 23 is the perspective view two of skirtboard.

Figure 24 is the sectional stereogram one of slide assemblies, and Figure 25 is the sectional stereogram two of slide assemblies, and Figure 26 is locking The side view one of component, Figure 27 are the side views two of locking assembly, and Figure 28 is the side view three of locking assembly, and Figure 29 is locking group The perspective view one of part, Figure 30 are the perspective views two of locking assembly, and Figure 31 is the perspective view three of locking assembly, and Figure 32 is locking assembly Perspective view four, Figure 33 is the perspective view five of locking assembly, and Figure 34 is the main view of key component, and Figure 35 is the vertical of key component Body figure, Figure 36 are the sectional stereograms one for sliding key component, and Figure 37 is the sectional stereogram two for sliding key component, Tu38Shi The sectional stereogram three of key component is slided, Figure 39 is the sectional stereogram four for sliding key component, and Figure 40 is sliding key group The sectional stereogram five of part.

Figure 41 is the perspective view of support unlock rail, and Figure 42 is the side view of support unlock rail, and Figure 43 is support unlock rail A-A sectional view, Figure 44 are the perspective views of gauge conversion equipment, and Figure 45 is the top view of gauge conversion equipment, and Figure 46 is that gauge turns The head-down position relation schematic diagram of changing device, Figure 47 are the main view positional diagrams of gauge conversion equipment.

Figure 48 is the sectional stereogram of wheel pair, and Figure 49 is the side view of wheel pair, and Figure 50 is the C-C sectional view one of wheel pair, figure 51 be the C-C sectional view two of wheel pair, and Figure 52 is the main view sectional view of wheel pair, and Figure 53 is the D-D sectional view of wheel pair.

Corresponding component names are marked in attached drawing are as follows:

A- axle assembly；A1- axle, A11- prismatic pair interconnecting piece, A12- convex shoulder, A13- end cap, the installation of A14- gear-box Seat；A2- bearing wheel one mounting base, A21- bearing mounting base, A22- wheel mounting base, A23- prismatic pair joint portion, A24- The shaft shoulder, A25- stop nut.

B- slides key component；B1- sliding part, B11- lateral wall, B12- inner sidewall, B13- locking slot, B14- solve locked groove, B15- locating slot, B16- convex block, B17- end cap；B2- locking member, B21- locking bar, B22- closing piece, B23- locating rod；B3- unlock Part, B31- chassis, B32- reset spring, B33- pallet, B34- buffer board, B35- idler wheel.

C- axlebox assemblies, C1- axle box, C2- bearing, C3- skirtboard.

D- gauge conversion equipment, D1- sleeper；D2- track；D3- supporting rail, 31- supporting table, 32- support leading portion, 33- branch Middle section is supportted, 34- supports back segment, and 35- baffle, 36- idler wheel, D31- support preparation rail, D32-, which is supported, continues rail；D4- unlocks rail, 41- unlocks leading portion, and 42- unlocks middle section, and 43- unlocks back segment, and D41- unlocks preparation rail, and D42-, which is unlocked, continues rail；D5- guided way； D6- clamps rail, D61- gripping section, D62- oared segrne pii；A- supporting section, a '-support breeze way, and b- unlocks section, b '-unlock buffering Section, c- guide section.

F- wheel.

Specific embodiment

In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not For limiting the present invention.

By taking CRH2 EMUs bogie as an example, following embodiment is made based on existing CRH2 EMUs bogie Improvement.The auxiliary facilities such as H-shaped framework, axle box hanging device, secondary suspension device turn with existing CRH2 EMUs Relevant device into frame is identical, thus does not repeat them here.Now turned to only for the present invention relative to existing CRH2 EMUs The improvements of frame are made described in detail below.

Embodiment 1

A kind of key component applied to gauge-changeable bogie, as shown in figure 35, including locking member B2 and unlock piece B3；Institute Stating locking member B2 includes locking bar B21；The locking bar B21 and axle box C1 is slidably connected, and the top of the locking bar B21 is located at the axis In case C1, lower part is extend out to outside axle box C1 from the axle box C1；The unlock piece B3 includes chassis B31, and the chassis B31 is in V The both ends of font, the chassis B31 are connect with the lower end of locking bar B21 respectively.

The both ends of the chassis B31, which are provided with, passes through institute for the pallet B33, the locking bar B21 of backstop reset spring B32 Reset spring B32 is stated to connect with the pallet B33, the reset spring B32 be located at the axle box C1 and the pallet B33 it Between.The locking member B2 further includes locating rod B23, and the both ends of the locating rod B23 are connect with the upper end of locking bar B21 respectively, shape At an inverted U-shaped.On the pallet B33 and lower end of the locking bar B21 is provided with the screw hole to match each other, and the two passes through spiral shell It tethers and connects.The both ends of the chassis B31 are provided with buffer board B34, and the buffer board B34 is an elastic plate, and where plate Planar horizontal.The section of the locking bar B21 is circle.

The improvement part of the present embodiment described in detail below compared with the existing technology: axle assembly A, sliding key component B, Axlebox assemblies C and matched gauge conversion equipment D.

Axle A1, as shown in Figs. 1-2, the wheel seat of axle A1 to end position is prismatic pair interconnecting piece A11, prismatic pair from It is identical as the axial direction of axle A1 main body by degree direction.Layer of material is fallen into extremely in the both ends axle A1 to wheel seat position rotary-cut Form prismatic pair interconnecting piece A11.The medial end of prismatic pair interconnecting piece A11 is machined with convex shoulder A12.It is processed on axle A1 with teeth Roller box mounting base A14.Axle A1 is hollow shaft.The both ends of hollow shaft opening are equipped with end cap A13.Prototype hole-bored axle from end to end internal diameterTo guarantee that axle A1 has enough intensity, therefore improved axle A1 designs hollow internal diameter

Bearing wheel one mounting base A2, as shown in Figure 3-4, bearing wheel one mounting base A2 are a cylindrical body, tubular The outside of body is bearing mounting base A21 and wheel mounting base A22, and the hollow portion of cylindrical body is prismatic pair joint portion A23, prismatic pair The freedom degree direction of joint portion A23 is identical as the axial direction of axle A1.Bearing wheel one mounting base A2 outer surface profile and prototype Vehicle power axle profile is consistent, installs the outer diameter at bearingWith CRH2 EMUs bogie power wheel to for base Plinth keeps prototype vehicle wheelWheel boreEqual parameter constants, wheel F are not necessarily to any modification.Wheel F is used Interference mode and wheel mounting base A22 cooperate, and the outboard end of wheel mounting base A22 is machined with the wheel hub for backstop wheel F Shaft shoulder A24, can prevent from loosening when wheel F slides axially.The outboard end of bearing mounting base A21 is provided with stops for installing Keep off the external screw thread of nut A25.Wheel F, bearing seal ring, sealed double-row circle are installed outside bearing wheel one mounting base A2 Taper roller bearing C2, oil seal washer, stop nut A25 of end etc..

Axle assembly A, as seen in figs. 5-6, including axle A1 and bearing wheel one mounting base A2；Prismatic pair joint portion A23 is sheathed on prismatic pair interconnecting piece A11, and prismatic pair joint portion A23 and prismatic pair interconnecting piece A11 form axial movement pair.It moves Dynamic pair joint portion A23 is cylindrical hollow portion；Prismatic pair interconnecting piece A11 is cylindrical body, and the bus of cylindrical body and axle A1 master The axial direction of body is identical.The side wall of prismatic pair joint portion A23 is provided with axial evagination spline；The side wall of prismatic pair interconnecting piece A11 is set It is equipped with the axial indent spline to match.It is clearance fit relationship between prismatic pair joint portion A23 and prismatic pair interconnecting piece A11. The axis of prismatic pair interconnecting piece A11, bearing mounting base A21, wheel mounting base A22, prismatic pair joint portion A23 and axle A1 main body It is overlapped.It is designed as axle sleeved scheme in addition, i.e., designs sleeve diameter simultaneouslyOutside the rotary-cut position of axle two sides SurfacePlace is machined with spline, and sleeve lining, which also designs, that spline is matched, can while guaranteeing to slide axially biography Torque delivery.

Sliding part B1, as is seen in figs 7-10, sliding part B1 are a cylindrical body, and the side of lateral wall B11 is machined with two rows The direction of locking slot B13, locking slot B13 are vertical state when being mounted on bogie perpendicular to axial direction.Between locking slot B13 It is machined with solution locked groove B14, solution locked groove B14 communicates with one another adjacent two rows of locking slot B13, solves direction and the axial direction of locked groove B14 It is overlapped, there are two solution locked groove B14 settings.The top of lateral wall B11 is machined with two rows of locating slot B15, and the direction of locating slot B15 is hung down Directly in axial direction.The top of lateral wall B11 is ellipse, and the long axis of ellipse is horizontal.The section of locating slot B15 be it is semicircle or Half elliptic.The two sides of lateral wall B11 are machined with convex block B16, and convex block B16 includes mutually perpendicular plane.First by bearing C2 Outer ring be set with sliding part B1, then by 4 M16 bolts of circle distribution, end cap B17 is mounted on to the both ends of sliding part B1, It is encapsulated in entire bearing C2 in sliding part B1, end cap B17 is located at interior circular portion and is inwardly recessed.

Sliding part B1 is using elliptical shape outside inner circle, and inner circle is for assembling bearing C2, the two sides cut-away of transverse Divide material, form the upright plane of two sides, design has the convex block rotated in axle box C1 for limit slippage part B1 on upright plane Two U type slots for locking of axial centre interval 42.5mm are offered on B16, convex block B16, i.e. locking slot B13 is (axial Spacing is determined according to the requirement of converted gauge), become for the gauge between standard gauge (1435mm) and broad gauge (1520mm) Change, meanwhile, corresponding position is machined with two column grooves, i.e. locating slot B15 on the outer surface of sliding part B1 ellipse, respectively with lock Tight slot B13 is in the same plane.Locating slot B15 bottom semicircular in shape or half elliptic.Sliding part B1 inner sidewall B12 For being coupled bearing outer ring.Lateral wall B11 designs ovalisation, and end cap B17 shape is identical as sliding part B1 gabarit, end cap B17 is hollowIt can be used for the installation of axle assembly A.

Locking member B2, as depicted in figs. 11-12, including locking bar B21 and closing piece B22；Closing piece B22 is located in axle box C1, and even It connects on the top of locking bar B21, for locking locking slot B13 on sliding part B1；The lower part axle box C1 is machined with circular hole, and locking bar B21 is inserted Enter circular hole, and be slidably connected with axle box C1, the lower part locking bar B21 is extend out to outside axle box C1 from axle box C1.Locking member B2 further includes fixed Position bar B23, there are two locking bar B21 is oppositely disposed, the both ends of locating rod B23 are connect with the upper end of each locking bar B21 respectively, shape At an inverted U-shaped.Closing piece B22 primarily serves the effect of locking；And locating rod B23 has primarily served the work of auxiliary centering guiding With, while two sides locking bar B21 is connected as an entirety.Corner cut structure is provided at the sideline of the lower part closing piece B22.Locking bar B21 Section be circle, match with axle box C1 circular hole.The lower end of locking bar B21 is provided with the screw hole for installing unlock piece B3.It is fixed Position bar B23 is ellipse, and oval long axis is horizontal, is matched with the lateral wall B11 of sliding part B1.The lower part locating rod B23 Section semicircular in shape or half elliptic match with locating slot B15.

The top of each locking bar B21 is provided at least two closing piece B22, when being unlocked with the solution locked groove B14 of sliding part B1, phase Mutually cooperation is by the way of segmentation dislocation unlock, and unlock stroke control is in 30-40mm range, when upward stroke is more than 30mm When, two solution locked groove B14 contraposition of two closing piece B22 and the side sliding part B1 on locking bar B11 can be unlocked to reach axial shifting It is dynamic.Locking member B11 be it is cylindric, not only facilitate processing, but also can cooperate reliably with the cylindrical hole of axle box C1.

Unlock piece B3, as illustrated in figs. 13-15, including chassis B31, chassis B31 are in the shape of the letter V.Spiral shell is provided on pallet B33 Hole.The both ends of chassis B31 are provided with buffer board B34, and buffer board B34 is an elastic plate, and the planar horizontal where plate.Bottom The bottom of frame B31 is provided with idler wheel B35.It is elastic material on the outside of the wheel rim of idler wheel B35.

It is connected and fixed between chassis B31 and locking member B21 by long spiro nail M8x25GB/T65-2000, the bottom chassis B31 Roller shaft and idler wheel B35 are installed, the effect by unlocking rail pushes locking member B2 to move vertically upward, thus with sliding part B1 Locking slot B13 in separate, and with solution locked groove B14 contraposition, and then move axially unlock.Then with unlock rail height when locking Decline, the reset spring B23 through installing at chassis automatically reset, locking member B2 return.

Key component B2+B3, as shown in Figure 34-35, including locking member B2 and unlock piece B3；Locking member B2 includes locking bar B21；Locking bar B21 is slidably connected with axle box C1, and the top of locking bar B21 is located in axle box C1, and lower part extend out to axle box from axle box C1 Outside C1；Unlock piece B3 includes chassis B31, and the both ends of chassis B31 are connect with the lower end of locking bar B21 respectively.

The both ends of chassis B31 are provided with the pallet B33 for backstop reset spring B32, and locking bar B21 passes through reset spring B32 is connect with pallet B33, and reset spring B32 is between axle box C1 and pallet B33.Locking member B2 further includes locating rod B23, The both ends of locating rod B23 are connect with the upper end of locking bar B21 respectively, form an inverted U-shaped.Locating rod B23 enters locating slot B15 It is formed and is stopped, cooperated with reset spring B32, the raising and lowering of locking member B2 is made to receive limitation.On pallet B33 and lock The lower end of bar B21 is provided with the screw hole to match each other, and the two is bolted.

Locking assembly B1+B2, as shown in Figure 26-33, including sliding part B1 and locking member B2；The closing piece B22 of locking member B2 It is connected to the top of locking bar B21, is cooperated with two rows of locking slot B13 of the lateral wall B11 of sliding part B1.Locking bar B21 and solution Locked groove B14 is provided with left and right two with matching each other.It is symmetrically locked in the two sides of sliding part B1, enhances wanting for two sides locking Point, uniform force, contact area is bigger when locking, and locking effect is more preferable.It is provided between locking slot B13 and passes through for closing piece B22 Solution locked groove B14, solution locked groove B14 adjacent two rows of locking slot B13 are communicated with one another.By U-shaped locking member B2 from locating slot B15 Separation, can unlock.The width of closing piece B22 is less than the width of solution locked groove B15.The top of lateral wall B11 is provided with two rows of positioning Slot B15；The both ends locating rod B23 of locking member B2 are connected to the upper end of two locking bar B21.Not only two sides are locked completely, on Portion also assists locking and centering, it is ensured that more uniform receiving axially shears, and has higher reliability.

Locating rod B23 and locating slot B15 is the ellipse to match each other, if outer shape is designed to circle, semicircle positioning Bar B23 apical position remotely located slot B15 already, and two sides do not separate also, need to by biggish upward stroke could be real Now separation unlock.On the other hand, closing piece B22 and solution locked groove B14 are arranged two with matching each other.Due to the limitation of the rising space, If closing piece B22 is designed as an entirety, closing piece B22, which needs to rise very big stroke, could separate unlock, then, at the top of axle box C1 The circular arch connected in star for accommodating locating rod B23 also needs to design deeper, and it is very thick and heavy to eventually lead to axle box C1.Axle box C1 and prototype vehicle It compares, becomes larger more serious, the framework car body height to the top of rail installed above will be all lifted, and initiation is a series of inadaptable, be needed It the position to be changed will be more.Therefore, multiple closing piece B22 are arranged in interval on locking bar B21, rise one by one, cooperate multiple solutions Locked groove B14 greatly shortens the upward stroke of closing piece B22, will not influence axle box C1, or even the topology layout of entire bogie.

In gauge changing, wheel F, bearing sealed ring and sliding part B1 integrally can be with bearing wheel one mounting base A2 It slides axially together, it, can be with fixing bearing wheel by locking member B2 lock slide B1 when reaching suitable gauge position The axial movement of integrated mounting base A2 and wheel F.Specifically, Figure 26 and Figure 29 is that locking member B2 and sliding part B2 is locked mutually State, at this point, closing piece B22 is located in locking slot B13, locating rod B23 is located in locating slot B15.Figure 27 and Figure 30 is unlock shape State, at this point, closing piece B22 is detached from from locking slot B13, and aligns with solution locked groove B14, locating rod B23 is detached from locating slot B15.Figure 28 It is unlocking process with Figure 31, sliding part B1 and locking member B1 axially opposing can be slided at this time.Figure 32 is to slide into another lock relatively State at tight slot B13.Figure 33 is the state that locking member B2 and sliding part B2 are locked mutually again.

Axlebox assemblies C in axlebox assemblies, is done as shown in Figure 16-23 mainly for axle box C1 interior wall construction and overall dimensions It improves out, and is the adaptive improvement for other parts.In addition, being also equipped in the bottom axle box C1 for protecting unlock piece The skirtboard C3 of B3.

Specifically, the present embodiment uses the positioning method of pivoted arm axle box, and axle box C1 is designed using two-piece unit formula, passed through Bolt is fixedly connected, and box outer surface design has bolt mounting base.Figure 17 is inside upper box, and Figure 18 is the top of lower box, Figure 19 is the lower part of lower box.The problem of causing internal locked groove and round hole that can not process because of monoblock cast can be prevented in this way. Meanwhile split-type design can guarantee the correct installation of locking member B2, i.e., first locking member B2 is fitted into upper box arch notch, then Closure installation lower box, penetrates locking member B11 in lower box round hole, stretches out from bottom logical with the chassis B31 of unlock piece B3 Cross screw assembly.The design of journal box front cover only guarantees on axle box after the modification accurately to install, therefore journal box front cover is set Meter need to cooperate with axle box.Pivoted arm axle box increases axle box radial dimension when designing, the design of axle box C1 internal diameter and sliding part B1 lateral wall B11 is consistent, is the upright plane of oval upper and lower surface and two sides, and fluted in upright plane processing, for cooperating It is packed into the convex block of sliding part B1.Since overall dimensions increase, original one is that vertical damper holder needs extension design, to prevent from hanging down It is interfered to damper cylinder with axle box.Because will not influence swing arm type positioning node, so positioning node it is not necessary to modify.

Such as Figure 20 and 21, it is machined with oval-shaped groove and round hole on axle box C1 symmetrical centre face, is used for installation locking Part B2, and cooperate and lock with the locking slot B13 and locating slot B15 of sliding part B1.Arcuate recess depth 35mm, when by locking Locking member B2 half protrudes into sliding part B1 locating slot, and half protrudes into the 15mm of axle box arcuate recess, and upward stroke when unlock 20mm composition.

Such as Figure 22 and 23, for the impact for preventing rugged environment factor and stone sundries during operation, under axle box The position of unlock piece B3 is installed in portion, and design has skirtboard C3, is in square frame-shaped, and intermediate groove is used to stretch out the idler wheel of locking member, two sides Plane is used for the supporting surface of axle box carrying.To guarantee enough intensity and supporting entire bogie weight, skirtboard inside casing, which has more, to be added Work has floor.

Slide assemblies B1+C1, such as Figure 24-25, including sliding part B1 and axle box C1；The lateral wall B11 and axis of sliding part B1 It is in axial sliding connection between case C1；And it is provided on lateral wall B11 for limiting relative rotation between lateral wall B11 and axle box C1 Limiting unit.

Sliding part B1 and axle box C1 is the ellipse to match.The two sides of sliding part B1 are provided with the convex block as limiting unit B16, the side wall that axle box C1 is contacted with convex block B16 are matched groove.Convex block B16 is provided with mutually perpendicular plane. The groove to match with locating slot B15 is provided on axle box C1, for accommodating the upward stroke of locating rod B23.Axle box C1 and cunning It is clearance fit between moving part B1.Skirtboard C3 is additionally provided with below axle box C1.

Be in axial sliding connection between the lateral wall B11 and axle box C1 of cylindrical body, inner sidewall B12 and bearing mounting base A21 it Between by bearing C2 axial restraint connect.Bearing C2 uses sealed double-row tapered roller bearing, is high-speed EMUs standard axle It holds There is intermediate ring among inner ring, both ends are equipped with oil seal washer, the sealing for grease.Sliding part B1 with Bearing C2 interference is pressed into after bearing mounting base A21, assists backstop on the outside by stop nut A25, and sliding part B1 is another End then limits its axial movement by bearing seal ring supplement.

Gauge changing component B1+B2+C1, as shown in Figure 36-40, including sliding part B1, locking member B2 and axle box C1；Sliding It is in axial sliding connection between the lateral wall B11 and axle box C1 of part B1；The closing piece B22 of locking member B2 is located in axle box C1, and with lock Tight slot B13 cooperates；Locking bar B21 is slidably connected with axle box C1, and lower part is extend out to except axle box C1；The chassis of unlock piece B3 The both ends B31 are connect with the lower end of locking bar B21 respectively.

The U-shaped that the locating rod B23 and locking bar B21 on the top locking member B2 are formed is consistent with axle box C1 ellipse notch, when matching When closing sliding part B1 locking, locating rod B23 is protruded into locating slot B15, and top half and axle box C1 arch notch cooperate, two side chains Block B22 sticks into locking slot B13, so that axial shearing is born by locking member B2, constraint pivoted arm axle box C1's and sliding part B1 Axial movement, and then guarantee that corresponding gauge position is constant.

In gauge conversion process, axle box C1 keeps relatively fixed in bogie system.And matched sliding part B1 and locking member B2 then relative motion, to reach the transformation purpose of gauge.Specifically, Figure 36 indicates locking state, at this point, closing piece B22 is located in locking slot B13, and locating rod B23 is located in locating slot B15.Figure 37 indicates unlocking process, at this point, locking bar B21 is solved The promotion of latch fitting B3 and move upwards, closing piece B22 is detached from out of locking slot B13, and locating rod B23 is detached from out of locating slot B15.Figure 38 indicate gauge changing process, at this point, sliding part B1 is slided relatively relative to axle box C1, until another locking slot B13, i.e. Figure 39 Shown state.Figure 40 is to reach another gauge position, the state locked again.

Support unlock rail D3D4, as shown in Figure 41-43, including the top of supporting rail D3, supporting rail D3 are supporting table 31, branch Unlock rail D4 is additionally provided on support platform 31.The front end in middle section 33 is supported to be located at the front of unlock leading portion 41.After supporting middle section 33 End is located at the rear of unlock back segment 43.Gauge-changeable bogie, using axle box bearing mode, becomes rail process operation in gauge changing It is more stable, thus use axle box bearing mode.Using axle box bearing mode, corresponding supporting rail and unlock rail can whole design, Groove is opened up among supporting rail, as unlock rail D4.Entirety is by support supporting table 31, cylindrical roller, cylindrical roller axis It holds, the composition such as side baffle 35 and intermediate solution lock crossbeam (unlock rail D4) outside axle box.Its generally one rectangular-shaped boss is arranged in-orbit Axle box C1 lower position on the outside of road, to simplify the ground gauge conversion equipment of lengthy and tedious complexity.

Supporting rail D3 is set to the lower section of axle box C1.It is arranged on the top surface of supporting table 31 or on the medial surface of baffle 35 There is idler wheel 36.It is contacted using rolling friction with axle box, is in roller conveyor shape.Idler wheel 36 stretches out short axle using cylindrical roller both ends Cylinder roller bearing, code name 32206E, size d × D × 30 × Φ of B=Φ 62 × 16 are installed.Cylinder roller bearing outer ring is fixed Do not turn, inner ring rotation drives idler wheel rotation.Boss seat 5mm is higher by cylindrical roller upper surface, it is ensured that is only justified when carrying Column roller and the bottom axle box C1 face contact, make entire bogie advance by the rolling of cylindrical roller.

Supporting table 31 includes sequentially connected support leading portion 32, support middle section 33 and support back segment 34, and support leading portion 32 is Raised floor, support middle section 33 are flat face, and support back segment 34 is decline face.The effect of supporting rail D3 be make train bogie into When entering ground gauge conversion equipment, bearing mode is converted first, is transformed on axle box C1 by the weight for carrying wheel, i.e. axis Case bearing mode vacantly unloads wheel F.Therefore in the design of supporting rail D3, to guarantee that axle box C1 can smoothly slide onto support Platform 31, at its both ends, initial position is processed into skewed, bogie can be made when entering rail F away from conversion equipment, supporting rail D3 can Axlebox assemblies C is lifted by ground.

Unlock rail D4 includes sequentially connected unlock leading portion 41, unlock middle section 42 and unlock back segment 43, and unlock leading portion 41 is Raised floor, unlock middle section 42 are flat face, and unlock back segment 43 is decline face.The top surface for unlocking rail D4 is lower than the top of supporting table 31 Face forms a groove structure.There is rectangular-shaped groove in supporting rail D3 medium design, make unlock rail D4 and use, groove is divided into three sections: Acclivity section, horizontal segment, decline slop section are respectively used to realize unlock, keep unlocked state, the function of locking.Groove The both ends open of structure.Inclined-plane in the arc-shaped is then designed at the both ends of solution locked groove D4, can fall into slot in cleaning solution locked groove or sundries Afterwards, facilitate the cleaning of sewage and dirt.The unlock inclined-plane of unlock rail D4 can make retaining mechanism vertical ascent 40mm stroke, guarantee to slide Moving part B1 is separated with locking member B2.

The outside of supporting table 31 is provided with baffle 35, and the top surface of baffle 35 is higher than the top surface of supporting table 31.Baffle 35 with Face contact on the outside of axle box C1 clamps axle box C1, the left side occurred when wheel can be prevented to be lifted forward movement by two side baffles 35 Right swing and serpentine locomotion, play guiding centering.

Gauge conversion equipment D including the supporting rail D3, the unlock rail D4 that are fixed on sleeper D1 and is led as shown in Figure 44-47 It include supporting preparation rail D31 and supporting to continue rail D32 to rail D5, supporting rail D3, unlock rail D4 includes unlocking preparation rail D41 reconciliation Lock continuous rail D42；Preparation rail D31 is supported to form supporting section a；Lasting rail D32 and unlock preparation rail D41 is supported to be formed and unlock section b； It supports and continues rail D32, unlocks lasting rail D42 and guided way D5 formation guide section c.Branch is provided between supporting section a and unlock section b Breeze way a ' is supportted, support breeze way a ' is by supporting lasting rail D32 to form.Unlock buffering is provided between unlock section b and guide section c Section b ', unlock breeze way b ' are formed by supporting lasting rail D32 reconciliation to lock continuous rail D42.

Track D2, which is connected by track flat segments D21 with track descending branch D22, to be formed, and track descending branch D22 is located at support Within section a.Exist due to newly making wheel and used car wheel due to the problem of after abrasion, axle box C1 is moved down caused by height declines, While the starting point supporting rail D3 is designed to skewed, track D2 is also designed when entering gauge conversion equipment and is tilted towards a little Lower shape, to assist axle box carrying to make wheel hanging.

By taking 1435mm gauge area is converted to 1520mm gauge area as an example.Wheel guided way D5 is in clamping shape, according to EMU The requirement of rim for automobile wheel width, axial distances are 135mm among two gangs of guided way D5 at track D2.Guided way D5 arrangement is in-orbit Away from transformation section, since bogie is carried by axle box C1, therefore it is not provided with track D2 among it, only in guided way starting and ending mistake Degree section is connected with 1435mm gauge track and 1520mm gauge track.To guarantee that wheel being capable of normotopia when that will enter guided way Centering at guided way both ends further include clamping rail D6, clamping rail D6 includes gripping section D61, one end of gripping section D61 with lead To rail D5 connection, the other end extends to track flat segments D21.Clamping rail D6 further includes oared segrne pii D62, oared segrne pii D62 with The end of gripping section D61 connects.

Gauge-changeable bogie A+B+C, as shown in Figure 48-53, including axle assembly A, sliding key component B and axlebox assemblies C；The prismatic pair joint portion A23 and prismatic pair interconnecting piece A11 of axle assembly A forms axial movement pair, and wheel F is mounted on wheel peace It fills on seat A22；It slides and is in axial sliding connection between the lateral wall B11 and axle box C1 of the sliding part B1 of key component B, inner sidewall It is connected between B12 and bearing mounting base A21 by bearing C2 axial restraint.Slide the closing piece B22 of the locking member B2 of key component B In axle box C1, it is connected to the top of locking bar B21, and cooperate with the locking slot B13 of sliding part B1；Locking bar B21 and axis Case C1 is slidably connected, and lower part is extend out to except axle box C1；It is separately connected with the both ends of the chassis B31 of unlock piece B3；Chassis B31 Bottom be provided with idler wheel B35.The skirtboard C3 of axlebox assemblies C is set to the lower section of axle box C1；The lower part of skirtboard C3 is provided with logical Hole, idler wheel B35 via through holes are extend out to except skirtboard C3.

This gauge-changeable bogie is moved together using wheel F and bearing C2 with bearing wheel one mounting base A2, then is passed through The mode for locking sliding part B1, reaches the axial restraint of wheel F, meets the requirement of the gauge changing of different gauges.Based on CRH2 Type bogie can be applicable in after small range is modified；It can be extended to the bogie of other models.

Bearing mounting base and wheel mounting base are wholely set by this programme, and interference is mounted on wheel peace respectively for wheel and bearing It fills on seat and bearing mounting base.Meanwhile bearing mounting base and wheel mounting base are arranged on prismatic pair joint portion, and by the bearing Wheel one mounting base is installed on the prismatic pair interconnecting piece of axle, can be by controlling the axis in the bearing wheel one mounting base The position in axlebox assemblies is held, the axial of wheel is moved when being controlled the movement of wheel, and then not only realizing gauge changing Dynamic problem.Axle assembly is provided with axially slidable prismatic pair interconnecting piece and prismatic pair joint portion, only right when making gauge changing Wheel, bearing wheel one mounting base, bearing are moved.Install sliding part, the outside of sliding part additional between bearing and axle box It is clearance fit relationship between wall and axle box, the two axially opposing can be slided；Further, since the effect of limiting unit, makes lateral wall Relative rotation is unable between axle box.The inner sidewall and bearing outer ring of sliding part are interference fitted, bearing inner race and bearing wheel one The bearing mounting base position of body mounting base is interference fitted.It is axially opposing between bearing wheel one mounting base and sliding part to make It is fixed, and can circumferentially relatively rotate；It is axial between sliding part and axle box to relatively move, and circumferentially opposed fixation.Axle body It is remained unchanged with the position of the devices such as axle box, single stage suspension, improves relative stability and the safety of gauge changing process.This Outside, axial prismatic pair can be slided back and forth to reach the position of different gauges, can according to the demand of specific gauge changing specification, if Conversion between the transformation being calculated as between two kinds of gauges and three kinds and three kinds or more gauge, therefore, the application of the axle assembly Range is very extensive.Being finally reached bearing wheel one mounting base, wheel, bearing can move axially relative to axle box, simultaneously The purpose of relative rotation does not occur between bearing and axle box in circumferential direction.

When locking slot can realize that wheel is moved to different gauge positions, locked by locking slot and closing piece.Closing piece is solid It is scheduled on locking bar, when locking bar rises, drives closing piece to rise together, so that closing piece be made to take off from the locking slot of sliding part two sides From into solution locked groove.Conversely, closing piece decline is driven together, to make solution locked groove of the closing piece from sliding part two sides when locking bar declines Middle disengaging, into locking slot.Above procedure is the conversion realized from locking state to unlocked state.In the two sides of outer side wall position Set, according to gauge specification, can specific requirements may be provided with the locking slots of a variety of gauge positions.The direction of locking slot is preferably perpendicular to It is axial, preferable locking effect can be reached.Mating corresponding locking member and unlock piece are preferably in vertical direction.And flute profile Locking mode structure is simple, reliable performance.

The locking groove location of two sides is provided with axially unlocked slot, when the locking bar of locking member is lifted certain altitude upwards, lock Block enters solution locked groove region, and sliding part can move axially, when being moved to another locking slot, closing piece decline, from Xie Suocaoqu Domain enters another locking slot to complete to lock.Staggeredly enter the mode of axially unlocked slot when closing piece rises, it is enough in vertical space The case where, it is settable multiple, it is in rectangular toothed, the corresponding locked groove that solves is also settable multiple, be combined with each other or divides with rectangular toothed From.Multiple closing pieces staggeredly enter solution locked groove region, intersect the mode of locking, unlock, can reduce unlock upward stroke.While in order to Guarantee has enough locking contact surfaces, and excessive amount of closing piece should not also be arranged.

Sliding part lateral wall top setting with two sides locking slot in conplane locating slot, if in a variety of gauge changings In the case where, settable multiple rows of locating slot.Locating slot plays auxiliary locking centering；Limitation locking member is also acted to continue to lock Continue the effect moved downward after tight sliding part, prevents closing piece from skidding off from locking slot lower end.Meanwhile axle box is provided with for locating rod The space that stroke rises.

Locking member unlock stroke crosses conference and occupies axle box space, keeps axle box volume excessive, influences the peace of each equipment of bogie Dress and cooperation.Sliding part gabarit is ellipse, and long axis is horizontal, and compared to circle, mobile lesser distance can be unlocked, and can be subtracted Small unlock stroke, and then vertical height is reduced, increase bogie primary-suspension and framework by height and be maintained at smaller range, makes to arrange Vehicle adapts to existing platform height.Meanwhile because oval two bulges point are unnecessary, therefore a part of material is cut away, reaches light The design requirement of quantization.

The top of chassis connects locking bar, and V-Bottom frame can be lifted by intermediate minimum point stress, makes the left and right same cloth of two check lock levers Rise, synchronizing unlocking avoids the occurrence of the above problem completely.The idler wheel of V-Bottom frame lower end realizes the sliding on unlock rail inclined-plane Friction becomes the effect of rolling friction.It is rolled on one side on unlock rail inclined-plane by idler wheel, is lifted V-Bottom frame upwards on one side, it is real Existing effect is even more ideal.

Unlock piece is arranged below axle box, and due to not blocking protection, track two sides are easy impact unlock piece at any time, make At damage, which can be with effective protection unlock piece.

Gauge changing method A+B+C+D includes the following steps: that step I support bogie unloads wheel；Step II solution Lock sliding part keeps wheel free；Step III sliding wheel makes it become rail.

Support bogie by the way of axle box support in step I.Axle box is realized by the supporting rail being mounted on railway roadbed Support, supporting rail be arranged below axle box.

The free mode of wheel is that bearing mounting base and wheel mounting base are wholely set to form bearing wheel one in step II Body mounting base, and bearing wheel one mounting base and axle split settings, the two axially opposing can be slided.Wheel exists in step II Locking state is in front of unlock, the mode of locking is sliding part to be arranged between axle box and bearing, and in sliding part and axle box Between locking member is set, pass through locking member realize locking.The mode that wheel unlocks in step II is that unlock is arranged below axle box Part, unlock piece are connect with locking member, drive locking member by unlock piece to realize unlock.Pass through the unlock rail being mounted on railway roadbed Realize unlock, unlock rail is arranged below unlock piece.

Wheel is slided in step III by the way of guided way sliding.Wheel is realized by the guided way being mounted on railway roadbed Sliding, the both ends of guided way are connect with track respectively.

By taking wheel gauge becomes the conversion process of 1520mm broad gauge position from 1435mm standard gauge position as an example, illustrate that the gauge changing turns To the gauge changing process and its working principle of frame:

(1) after wheel reaches ground gauge conversion equipment, supporting rail is contacted with the skirtboard below pivoted arm axle box, is lifted Bogie unloads wheel.

(2) unlock rail inclined-plane at supporting rail intermediate groove rises, pushing rolling wheels overcome the resistance of reset spring vertically to Upper movement, and then push U-shaped locking member to move upwards and be detached from sliding part locating slot, thus free sliding part and bearing wheel one Mounting base, so far, wheel are unlocked.

(3) then, under the action of the wheel guided way of ground, wheel moves outward, and drives the axis with wheel one Hold wheel one mounting base, sliding part slides together.So far, disc brake is also unlocked.Wheel drives bearing wheel one Body mounting base, sliding part, disc brake slide axially together.Wheel gauge becomes broad gauge position from standard gauge position (1435mm) (1520mm)。

(4) after reaching required gauge, the unlock rail inclined-plane at supporting rail intermediate groove declines, and retaining mechanism is resetting Under the action of spring, vertical downward movement.U-shaped locking member slowly enters sliding part locating slot by axle box oval-shaped groove at this time, Two sides closing piece also protrudes into locking slot, to lock sliding part, limits the axial movement of bearing wheel one mounting base and wheel, most Reach broad gauge position eventually.

When Wheel centre distance narrows from the width, entire conversion process with it is above-mentioned essentially identical, only need to be moved in the opposite direction according to wheel It is dynamic.Meanwhile can the disc brake of automatically lock also move in the opposite direction.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (5)

1. a kind of key component applied to gauge-changeable bogie, it is characterised in that: including locking member (B2) and unlock piece (B3)；

The locking member (B2) includes locking bar (B21)；The locking bar (B21) is slidably connected with axle box (C1), the locking bar (B21) Top be located in the axle box (C1), lower part extend out to axle box (C1) outside from the axle box (C1)；

The unlock piece (B3) includes chassis (B31), and the chassis (B31) is in the shape of the letter V, the both ends difference of the chassis (B31) It is connect with the lower end of locking bar (B21)；

The both ends of the chassis (B31) are provided with the pallet (B33) for backstop reset spring (B32), and the locking bar (B21) is worn It crosses the reset spring (B32) to connect with the pallet (B33), the reset spring (B32) is located at the axle box (C1) and institute It states between pallet (B33).

2. the key component according to claim 1 applied to gauge-changeable bogie, it is characterised in that: the locking member It (B2) further include locating rod (B23), the both ends of the locating rod (B23) are connect with the upper end of locking bar (B21) respectively, are formed one and are fallen The U-shaped set.

3. the key component according to claim 1 applied to gauge-changeable bogie, it is characterised in that: the pallet (B33) on the and lower end of the locking bar (B21) is provided with the screw hole to match each other, and the two is bolted.

4. the key component according to claim 1 applied to gauge-changeable bogie, it is characterised in that: the chassis (B31) both ends are provided with buffer board (B34), and the buffer board (B34) is an elastic plate, and the planar water where plate It is flat.

5. the key component according to claim 1 applied to gauge-changeable bogie, it is characterised in that: the locking bar (B21) section is circle.