CN102476642A - Railway vehicle steering frame and railway vehicle - Google Patents
Railway vehicle steering frame and railway vehicle Download PDFInfo
- Publication number
- CN102476642A CN102476642A CN2010105573228A CN201010557322A CN102476642A CN 102476642 A CN102476642 A CN 102476642A CN 2010105573228 A CN2010105573228 A CN 2010105573228A CN 201010557322 A CN201010557322 A CN 201010557322A CN 102476642 A CN102476642 A CN 102476642A
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- wedge
- axle box
- side frame
- wearing plate
- facade
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Abstract
The invention provides a railway vehicle steering frame and a railway vehicle. According to the railway vehicle steering frame, an inclined wedge in a series of suspension shock absorption devices in the prior art is set and decomposed into two parts formed by an inclined wedge and a friction plate composition, wherein the friction plate composition comprises two parts: a composition vertical plane and a post body arranged on the composition vertical plane, the composition vertical plane of the friction plate composition is in contact with a shaft box abrasion plate, and the end surface of the post body of the friction plate composition is in contact with the vertical plane of the inclined wedge. Therefore, the friction surface with the shock absorption damping effect is transferred to a position between the shaft box abrasion plate and the composition vertical plane of the friction plate composition from the original position between the shaft box abrasion plate and the inclined wedge vertical plane, the additional rotation movement during the upward and downward movement of the inclined wedge in a series of suspension devices of the existing railway vehicle steering frame is eliminated, the arc-shaped abrasion phenomenon of the inclined wedge vertical plane and the shaft box abrasion plate in the prior art is thoroughly eliminated, the stability of the shock absorber is improved, and the service life period is prolonged.
Description
Technical field
The present invention relates to the rolling stock manufacturing technology, relate in particular to a kind of bogies for railway vehicles and rolling stock.
Background technology
Bogies for railway vehicles be one bear the deadweight of cargo weight and car body also guide simultaneously rolling stock high-speed cruising on the rectilinear orbit and on curve track the vitals of turning operation.Its structure and technical parameter have often just determined the dynamic performance of railway truck.
Fig. 1 is rigid frame formula (or the accurate framework type) bogie truck that is widely used in rolling stock in the prior art.As shown in Figure 1; This type bogie truck comprises: two groups of wheels arranging along track front and back (current of traffic is preceding) are to 1; Every group of right two wheel of wheel by one pass its center axletree be fixed together; It is provided with a wheel set bearing 111 at every group of wheel to both sides, and 2 of bogie side frames (or framework) are set in place on the axle box 11 of the homonymy on the wheel set bearing.Rigid frame formula or accurate framework type bogie truck are generally all established axle box single stage suspension device a and secondary suspension device b.Single stage suspension device a the wheel to 1 and bogie side frame 2 between, secondary suspension device b is between bogie side frame 2 and car body or bolster 3.
Fig. 2 A is existing rigid frame formula (or accurate framework type) bogie primary-suspension structure drawing of device.Shown in Fig. 2 A, axle box single stage suspension device is made up of bearing spring, wedge 21, side frame guide inclined-plane wearing plate 23 and an axle box wearing plate 12 of axle box 11 both sides.Wherein, The axle box bearing spring comprises the interior coil spring 22 and outer coil spring 24 that coaxial inner conductor is provided with; Wedge 21 is arranged in the bearing spring of axle box rear side on the free high bigger slightly interior coil spring 22; Its inclined-plane contacts with cooresponding side frame guide inclined-plane wearing plate 23, and the opposite face on this inclined-plane is that the wedge facade contacts with the axle box wearing plate 12 that is positioned at axle box 11 rear sides.Here; Journal box spring mainly plays effect vertical and the transverse elasticity constraint, and the effect of absorption from vertical vibration energy between the wheel track played in the contact surface of wedge 21 inclined-planes and side frame guide inclined-plane wearing plate 23 and the frictional damping that contact surface produced of wedge 21 facades and axle box wearing plate 12.When rolling stock orbits, because the vertical and horizontal irregularity excitation of track forms a representative type random vibration system.In this random vibration system, wheel to 1 with axle box 11 are spring lower component, and bogie side frame 2 is the spring upper-part with the car body and the goods that carry above that, the relative spring lower component of spring upper-part is made vertical and horizontal random vibration.Promptly in vibration processes; Wedge 21 and interior coil spring 22 and the axle box wearing plate 12 and the side frame guide inclined-plane wearing plate 23 common friction damping devices of forming that are positioned at axle box 11 rear sides; The wedge facade is with respect to the 12 upper and lower motions of axle box wearing plate; Between this frictional contact surface, produce friction force, this friction force is exactly the dumping force of damped vibration.
Fig. 2 B is the stress balance figure of wedge when moving downward, the stress balance figure when Fig. 2 C is the wedge upward movement.Please be simultaneously with reference to Fig. 2 A, Fig. 2 B and Fig. 2 C; When the upper and lower motion of wedge; Vertically upward elasticity bearing capacity P of coil spring 22 in wedge receives, at the horizontal normal reaction N of the normal reaction N1 of wedge 21 inclined-planes under the elasticity bearing capacity P effect and 23 generations of side frame guide inclined-plane wearing plate, wedge 21 facades and 12 generations of axle box wearing plate under elasticity bearing capacity P effect; And, between the friction face of wedge 21 facades and axle box wearing plate 12, produce friction force F by this power, wherein; The direction of friction force F makes progress (seeing Fig. 2 B) along the wedge facade when wedge moves downward, and the direction of friction force F is along wedge facade downward (seeing Fig. 2 C) when the wedge upward movement.More than each power form a balance concurrent force system.But can find out that by Fig. 2 B and Fig. 2 C friction force F is bigger to the distance L value of junction point O, thereby form a moment M who makes wedge 21 cws or left-hand revolution motion,
M＝±FL；
Therefore, in the dynamic vibration process, the existence of this moment causes that the point of action that elasticity bearing capacity P acts on the normal reaction N of wedge 21 facades and 12 generations of axle box wearing plate moves up and down along the facade of wedge 21, with rotatablely moving of balance wedge 21.That is to say that wedge 21 is to make upper and lower translation and the additional simultaneously a kind of compound motion that rotates.This compound motion will cause the arcuation abrasion d of the facade of wedge 21 and the axle box wearing plate 12 that contacts with it, shown in Fig. 2 D.This abrasion state makes the frictional damping of this shock attenuation unit become extremely unstable, also possibly pass to car body to vibration under the spring rigidly simultaneously, causes that vertical action firmly strengthens between car body vertical vibration acceleration/accel and wheel track.This unsettled abrasion state accelerated wear part to the speed limit degree, also can be directed at shock attenuation unit when serious and lose efficacy.
Summary of the invention
To the above-mentioned defective of prior art, the present invention provides a kind of bogies for railway vehicles and rolling stock.
The present invention provides a kind of bogies for railway vehicles; Comprise two groups of wheels to, be arranged on the axle box on the wheel set bearing; And be arranged on the bogie side frame on two axle boxes of homonymy; Said bogie side frame comprises drawing strickle guide in the bogie side frame, the outer drawing strickle guide of bogie side frame and side frame guide inclined-plane wearing plate, and said axle box comprises axle box bearing spring and the axle box wearing plate that is positioned at both sides.Be provided with a wedge on the said axle box bearing spring and between the side frame guide inclined-plane wearing plate of an axle box wearing plate of said axle box and said bogie side frame; The inclined-plane of said wedge contacts with said side frame guide inclined-plane wearing plate, and the opposite face on the inclined-plane of said wedge is provided with a wedge facade; Between said wedge facade and said axle box wearing plate, be provided with a friction plate and form, said friction plate is formed and is comprised that one forms facade, and is arranged on the cylinder on the said composition facade; Said cylinder passes the through hole on the drawing strickle guide in the said bogie side frame, and an end face of said cylinder contacts with said wedge facade.
The present invention also provides a kind of rolling stock, comprises above-mentioned bogies for railway vehicles, and is arranged on the car body on the said bogies for railway vehicles.
Bogies for railway vehicles provided by the invention and rolling stock; Through wedge in the prior art is resolved into wedge and two parts of friction plate composition; The friction face of damping effect by transferring to forming between facade and the axle box wearing plate that friction plate forms between original wedge facade and the axle box wearing plate; Additional rotatablely moving when having eliminated the upper and lower motion of wedge in the single stage suspension device of existing bogies for railway vehicles; Thoroughly eliminated the arcuation abrasion phenomenon of wedge facade and axle box wearing plate in the prior art, the stability and the cycle in service life of having improved shock attenuation unit.
Description of drawings
Fig. 1 is rigid frame formula (or the accurate framework type) bogie truck that is widely used in rolling stock in the prior art.
Fig. 2 A is existing rigid frame formula (or accurate framework type) bogie primary-suspension structure drawing of device.
Fig. 2 B is the stress balance figure of wedge when moving downward.
Stress balance figure when Fig. 2 C is the wedge upward movement.
Fig. 2 D is arcuation abrasion scheme drawings.
Fig. 3 is the single stage suspension structure drawing of device of one embodiment of the invention bogies for railway vehicles.
Fig. 4 A is the force analysis figure of shock attenuation unit major part when wedge moves downward in one embodiment of the invention.
Fig. 4 B is the force analysis figure of shock attenuation unit major part during the wedge upward movement in one embodiment of the invention.
Reference numeral:
The 1-wheel is right; The 2-bogie side frame; The 3-bolster;
The 111-wheel set bearing; The 11-axle box; A-single stage suspension device;
B-secondary suspension device; The c-track; 12-axle box wearing plate;
The 21-wedge; Coil spring in the 22-; 23-side frame guide inclined-plane wearing plate;
The outer coil spring of 24-; The abrasion of d-arcuation; Drawing strickle guide in the 31-bogie side frame;
The outer drawing strickle guide of 32-bogie side frame; The 41-cushion; The 42-friction plate is formed;
The 112-pedestal bearing boss; The 311-through hole; 421-forms facade;
The 422-cylinder; The N1-normal reaction; P-elasticity bearing capacity;
The horizontal normal reaction of N-; The F-friction force; N '-positive pressure;
F '-friction force counter-force; The L-distance; O-junction point;
M-moment.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 3 is the single stage suspension structure drawing of device of one embodiment of the invention bogies for railway vehicles.Fig. 4 A and Fig. 4 B are respectively the force analysis figure of wedge in the foregoing description 21 shock attenuation unit major part downwards and during upward movement.Please be simultaneously with reference to Fig. 3, Fig. 4 A and Fig. 4 B, this bogies for railway vehicles, comprise two groups of wheels arranging before and after the track to 1, be arranged on the axle box 11 on the wheel set bearing, and be arranged on the bogie side frame 2 on two axle boxes 11 of homonymy.Every group of wheel to 1 comprise lateral arrangement two wheels; It is affixed with two wheels that axletree passes two wheel centers; Wheel is provided with wheel set bearing 111 to the axletree of both sides; It is provided with axle box 11, and 2 of bogie side frames are arranged on the axle box 11 of homonymy (Fig. 3 has only expressed the view of a side, and the opposite side structure is identical with it).Bogie side frame 2 comprises drawing strickle guide 31 in the bogie side frame, the outer drawing strickle guide 32 of bogie side frame and fixes side frame guide inclined-plane wearing plate 23 on it.Axle box 11 comprises axle box bearing spring and the axle box wearing plate 12 that is positioned at its both sides; Be provided with a wedge 21 on the said axle box bearing spring and between the side frame guide inclined-plane wearing plate 23 of an axle box wearing plate 12 of axle box 11 and bogie side frame 2; The inclined-plane of wedge 21 contacts with side frame guide inclined-plane wearing plate 23, and the opposite face on the inclined-plane of wedge 21 is provided with a wedge facade.Promptly as shown in Figure 3; Axle box wearing plate 12 is fixed on the forward and backward both sides of axle box 11; The axle box bearing spring is seated on the pedestal bearing boss 112 respectively and respectively comprises a coil spring 22 and an outer coil spring 24 in one, and both are set-located at coaxial heart, and wedge 21 just is provided with on the interior coil spring 22; And the free height of interior coil spring 22 will be a bit larger tham outer coil spring 24, with the compensation as abrasion back wedge 21 ascending amounts.Friction plate is formed 42 and is arranged between described wedge facade and the cooresponding axle box wearing plate 12.Shown in Fig. 4 A and Fig. 4 B, friction plate is formed 42 and is comprised that one forms facade 421, and is arranged on the cylinder 422 on the said composition facade.Cylinder 422 passes the through hole 311 on the drawing strickle guide 31 in the bogie side frame, and and 311 of through holes adopt little free-running fits with the location, simultaneously, the end face of cylinder 422 contacts with said wedge facade.
When the rolling stock orbiting in the formed random vibration system, wheel to 1 with axle box 11 are spring lower component, and bogie side frame 2 is the spring upper-part with car body and goods, the relative spring lower component of spring upper-part is done vertical and horizontal random vibration.In this vibration processes, interior coil spring 22, wedge 21, friction plate form 42, the axle box wearing plate 12 of the forward and backward both sides of axle box, the cushion 41 common friction damping devices of forming these bogie trucks.Form facade 421 and cushion 41 facades with respect to the 12 upper and lower motions of axle box wearing plate, between its contact surface, produce friction force F, this friction force F is the dumping force of damped vibration.Interior coil spring 22 plays the effect of supporting suspended weight jointly with outer coil spring 24, and simultaneously interior coil spring 22 also plays the effect that when the sprung weight random vibration, provides the elasticity bearing capacity P vertically upward of wedge 21.Wedge 21 inclined-planes above the interior coil spring 22 contact with side frame guide inclined-plane wearing plate 23, under elasticity bearing capacity P effect, between this contact surface, produce a normal reaction N1; Wedge 21 facades contact with cylinder 422 end faces; Support under P and the normal reaction N1 effect in elasticity; Produce horizontal normal reaction N between this contact surface, elasticity bearing capacity P, normal reaction N1 and horizontal normal reaction N three power constitute a plane concurrent force system, and O is the junction point of said three power.The end of cylinder 422 contacts with wedge 21 facades; Friction plate is formed facade 421 and is contacted with axle box wearing plate 12; Be little free-running fit because of the through hole 311 on the drawing strickle guide 31 in cylinder 422 and the bogie side frame again; Can only move by along continuous straight runs so friction plate forms 42, transmit the positive pressure N ' left to axle box wearing plate 12, this positive pressure N ' and horizontal normal reaction N are a pair of application force and antagonistic force.Under the effect of positive pressure N ', (when wedge moved downward, F upwards along the dynamic friction F that forms facade 421 and change with direction of vibration forming 12 generations of facade 421 and axle box wearing plate direction; Otherwise then anti-), its value:
F＝μN；
Under the effect of this friction force F, with bogie side frame in cylinder 422 tops that cooperate of through hole 311 on the drawing strickle guide 31 (when the wedge upward movement time be the bottom) can produce one with dynamic friction F friction force counter-force F ' in the opposite direction.
Can find out from above force analysis; The friction force F that in the upper and lower vibration processes of sprung weight, produces is by the counter-force F ' balance on the cylinder 422; No longer pass to wedge 21 and get on, and the distance of the counter-force F ' of friction force F to the cylinder 422 is very little; Can not produce the additional moment that makes wedge 21 rotations yet, thoroughly eliminate rotatablely moving of wedge 21.
Like this; The present invention is through resolving into wedge and two parts of friction plate composition with wedge in the prior art; The friction face of damping effect by transferring to forming between facade 421 and the axle box wearing plate 12 that friction plate forms between original wedge 21 facades and the axle box wearing plate 12; Additional rotatablely moving when having eliminated the upper and lower motion of wedge in the single stage suspension device of existing bogies for railway vehicles; Thoroughly eliminated the arcuation abrasion phenomenon of wedge facade and axle box wearing plate in the prior art, the stability and the cycle in service life of having improved shock attenuation unit.
In the foregoing description, it is spherical surface that friction plate is formed the end face that 42 cylinder 422 contacts with the wedge facade, and this end face handles through surface heat, has higher resistance to abrasion.The design of spherical surface can make the end face of cylinder 422 on wedge 21 facades, move flexibly, to transmit the horizontal normal reaction N between this contact surface reliably.
In the above-described embodiments, the shape of forming the cylinder 422 on the facade 421 can design according to the hole shape that is mated, and what present embodiment provided is that cylinder 422 is cylindrical situation.Can improve practicality according to the actual conditions flexible design.In the above-described embodiments, outside bogie side frame, also be provided with a cushion 41 on the drawing strickle guide 32, and cushion 41 sides contact with the axle box wearing plate 12 of the front side that is positioned at axle box 11.Its objective is that the friction plate that makes cushion 41 and axle box 11 rear sides forms 42 and join together to provide one along car body elastic restraint power longitudinally; Changing in the prior art is the situation of rigidity contact entirely; With make full use of wheel to and rail between the sliding moment of wriggling make bogie truck be accurate radially state to pass through curve; Thereby improve the curve negotiation ability of bogie truck, reduce the wheeling edge wearing amount.
The inside of the cushion 41 in the foregoing description is rubber bodies, and the above and below of rubber bodies is provided with metal sheet.Rubber bodies and the sulfuration of said metal sheet bond together.Through the normal stiffness of rubber bodies in the appropriate design cushion 41, can realize playing the effect that improves the bogie truck curve negotiation ability to taking turns right longitudinal elasticity constraint.
The wearing plate that has been welded and has processed with high-abrasive material on wedge 21 facades in the foregoing description, the contact condition in the time of keeping newly making on the one hand can make things convenient for upkeep operation on the other hand.
A kind of rolling stock of another embodiment of the present invention, this rolling stock comprises bogies for railway vehicles, and is arranged on the car body on the said bogies for railway vehicles.Wherein, this bogies for railway vehicles can be any one of bogies for railway vehicles that the foregoing description provides.This rolling stock has thoroughly been eliminated the arcuation abrasion phenomenon of wedge and axle box wearing plate in the prior art single stage suspension device; The stability and the cycle in service life of shock attenuation unit have been improved; Simultaneously, this rolling stock also has higher curve negotiation ability, has reduced the abrasion loss of wheel rim.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (7)
1. bogies for railway vehicles; Comprise two groups of wheels to, be arranged on the axle box on the wheel set bearing; And be arranged on the bogie side frame on two axle boxes of homonymy, and said bogie side frame comprises drawing strickle guide in the bogie side frame, the outer drawing strickle guide of bogie side frame and side frame guide inclined-plane wearing plate, said axle box comprises axle box bearing spring and the axle box wearing plate that is positioned at both sides; It is characterized in that; Be provided with a wedge on the said axle box bearing spring and between the side frame guide inclined-plane wearing plate of an axle box wearing plate of said axle box and said bogie side frame, the inclined-plane of said wedge contacts with said side frame guide inclined-plane wearing plate, and the opposite face on the inclined-plane of said wedge is provided with a wedge facade; Between said wedge facade and said axle box wearing plate, be provided with a friction plate and form, said friction plate is formed and is comprised that one forms facade, and is arranged on the cylinder on the said composition facade; Said cylinder passes the through hole on the drawing strickle guide in the said bogie side frame, and an end face of said cylinder contacts with said wedge facade.
2. bogies for railway vehicles according to claim 1 is characterized in that, the end face of said cylinder is a spherical surface.
3. bogies for railway vehicles according to claim 1 is characterized in that, said cylinder is a cylinder.
4. according to claim 1 or 2 or 3 described bogies for railway vehicles, it is characterized in that, outside said bogie side frame, also be provided with a cushion on the drawing strickle guide, the side of said cushion contacts with the opposite side axle box wearing plate of said axle box.
5. bogies for railway vehicles according to claim 4 is characterized in that, the inside of said cushion is rubber bodies, and the above and below of said rubber bodies is provided with metal sheet.
6. according to claim 1 or 2 or 3 described bogies for railway vehicles, it is characterized in that said wedge facade is provided with wearing plate.
7. a rolling stock is characterized in that, comprises like the arbitrary described bogies for railway vehicles of claim 1 to 6, and is arranged on the car body on the said bogies for railway vehicles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105573228A CN102476642A (en) | 2010-11-22 | 2010-11-22 | Railway vehicle steering frame and railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105573228A CN102476642A (en) | 2010-11-22 | 2010-11-22 | Railway vehicle steering frame and railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102476642A true CN102476642A (en) | 2012-05-30 |
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ID=46089441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105573228A Pending CN102476642A (en) | 2010-11-22 | 2010-11-22 | Railway vehicle steering frame and railway vehicle |
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| CN (1) | CN102476642A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2525631C1 (en) * | 2013-05-29 | 2014-08-20 | Открытое акционерное общество Научно-исследовательский и конструкторско-технологический институт подвижного состава (ОАО "ВНИКТИ") | Railway rolling stock bogie axle box assy (versions) |
| EP3045373A1 (en) * | 2015-01-19 | 2016-07-20 | VR-Yhtymä Oy | Friction damper supported by a joint |
| CN106347402A (en) * | 2016-08-30 | 2017-01-25 | 江苏同庆车辆配件有限公司 | Side bearing abrasion disc |
| CN107515128A (en) * | 2017-09-30 | 2017-12-26 | 中车大连机车研究所有限公司 | A kind of rail engineering automobile dynamic test system |
| CN110435703A (en) * | 2019-09-09 | 2019-11-12 | 株洲时代电子技术有限公司 | A kind of axle box vibration damping wearing plate and its mounting structure |
| CN111361595A (en) * | 2020-04-09 | 2020-07-03 | 中国铁建高新装备股份有限公司 | Slide wedge vibration damper and slide wedge structure and wearing plate thereof |
| CN112849191A (en) * | 2021-03-29 | 2021-05-28 | 中车齐齐哈尔车辆有限公司 | Railway vehicle, bogie and axle box suspension device thereof |
| CN114845922A (en) * | 2019-10-22 | 2022-08-02 | 全国钢车有限公司 | Wedge fitting for railway car bogie damper |
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| FR2490172A1 (en) * | 1980-09-17 | 1982-03-19 | Sncf | SUSPENSION ARRANGEMENT FOR RAILWAY VEHICLES |
| CN2242210Y (en) * | 1995-08-28 | 1996-12-11 | 株洲车辆厂 | Quasi-structural-frame type, low power-supply bogie for railway transportation |
| US20080264292A1 (en) * | 2007-04-28 | 2008-10-30 | William Alan Aitken | Suspension for a rail vehicle |
| WO2008152383A1 (en) * | 2007-06-13 | 2008-12-18 | Sct Europe Limited | Suspension for a rail vehicle |
| CN201538328U (en) * | 2009-11-20 | 2010-08-04 | 南车二七车辆有限公司 | Axle box damping mechanism for railway freight car bogie |
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- 2010-11-22 CN CN2010105573228A patent/CN102476642A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2490172A1 (en) * | 1980-09-17 | 1982-03-19 | Sncf | SUSPENSION ARRANGEMENT FOR RAILWAY VEHICLES |
| CN2242210Y (en) * | 1995-08-28 | 1996-12-11 | 株洲车辆厂 | Quasi-structural-frame type, low power-supply bogie for railway transportation |
| US20080264292A1 (en) * | 2007-04-28 | 2008-10-30 | William Alan Aitken | Suspension for a rail vehicle |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2525631C1 (en) * | 2013-05-29 | 2014-08-20 | Открытое акционерное общество Научно-исследовательский и конструкторско-технологический институт подвижного состава (ОАО "ВНИКТИ") | Railway rolling stock bogie axle box assy (versions) |
| EP3045373A1 (en) * | 2015-01-19 | 2016-07-20 | VR-Yhtymä Oy | Friction damper supported by a joint |
| CN106347402A (en) * | 2016-08-30 | 2017-01-25 | 江苏同庆车辆配件有限公司 | Side bearing abrasion disc |
| CN106347402B (en) * | 2016-08-30 | 2018-03-27 | 江苏同庆车辆配件有限公司 | A kind of side bearing abrasion disc |
| CN107515128A (en) * | 2017-09-30 | 2017-12-26 | 中车大连机车研究所有限公司 | A kind of rail engineering automobile dynamic test system |
| CN110435703A (en) * | 2019-09-09 | 2019-11-12 | 株洲时代电子技术有限公司 | A kind of axle box vibration damping wearing plate and its mounting structure |
| CN110435703B (en) * | 2019-09-09 | 2024-05-07 | 株洲时代电子技术有限公司 | Axle box damping wearing plate and mounting structure thereof |
| CN114845922A (en) * | 2019-10-22 | 2022-08-02 | 全国钢车有限公司 | Wedge fitting for railway car bogie damper |
| CN114845922B (en) * | 2019-10-22 | 2024-07-26 | 全国钢车有限公司 | Railway vehicle bogie damper wedge fitting |
| CN111361595A (en) * | 2020-04-09 | 2020-07-03 | 中国铁建高新装备股份有限公司 | Slide wedge vibration damper and slide wedge structure and wearing plate thereof |
| CN112849191A (en) * | 2021-03-29 | 2021-05-28 | 中车齐齐哈尔车辆有限公司 | Railway vehicle, bogie and axle box suspension device thereof |
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Application publication date: 20120530 |