CN212890344U - Elastic side bearing for railway freight car and railway freight car bogie - Google Patents
Elastic side bearing for railway freight car and railway freight car bogie Download PDFInfo
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- CN212890344U CN212890344U CN202021109622.5U CN202021109622U CN212890344U CN 212890344 U CN212890344 U CN 212890344U CN 202021109622 U CN202021109622 U CN 202021109622U CN 212890344 U CN212890344 U CN 212890344U
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- side bearing
- apron
- overcoat
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- railway freight
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Abstract
The utility model discloses a railway freight car is elasticity side bearing and railway freight car bogie for vehicle, the side bearing includes wearing and tearing board, the side bearing, rubber elastomer, roller assembly and apron, the upside at the apron is installed to the wearing and tearing board, roller assembly installs on the side bearing, rubber elastomer includes the inner core that cup joints from inside to outside in proper order, rubber layer and overcoat, the downside of apron is provided with the apron sliding sleeve, the overcoat is installed on the side bearing, the outside at the overcoat is lapped in the sliding joint to the apron sliding sleeve, and be provided with between this apron sliding sleeve and the overcoat and be used for preventing overcoat and the frictional guidance tape of apron sliding sleeve. The rubber elastic body of the side bearing is arranged in a closed manner, so that external acid-base pollution and sand and stone dust interference are avoided, the service life of the rubber elastic body of the quick-wear part is prolonged, and the isolated guide belt is arranged between the cover plate and the outer sleeve, so that severe abrasion between the cover plate and the outer sleeve is avoided, only parts such as the abrasion plate, the guide belt and the like need to be replaced during maintenance, and the maintenance cost is reduced to a great extent.
Description
Technical Field
The utility model relates to a rail vehicle technical field especially relates to a railway freight car is elasticity side bearing and railway freight car bogie for vehicle.
Background
Railway wagons generally comprise a wagon body, a bogie, a braking device, a coupler draft gear and the like. The elastic side bearing is positioned at the upper part of the bogie, is arranged between the swing bolster and the car body, and supports the weight of the car body together with the center plate. The common railway wagon bogie mainly comprises two types, one type is a clearance type rubber body elastic side bearing and is mainly applied to low-speed vehicles (less than 100 kM/h); the other is a normally-contacted rubber body elastic side bearing which is mainly applied to high-speed vehicles (> 100 kM/h). The two side bearings are generally less stiff in the longitudinal and transverse directions (about 5MN/m) and have a vertical travel of generally less than 23 mm.
The existing side bearing structure, for example, "a long-stroke elastic side bearing for a railway freight car" disclosed in chinese patent CN201261469, or "a long-stroke elastic side bearing" disclosed in chinese patent CN2818265, may have the following problems:
1. the structure is complex, and the assembly and disassembly are troublesome, so that the maintenance and replacement cost is increased;
2. the rubber elastomer part in the side bearing is exposed outside, so that the side bearing is easily polluted by the external acid-base environment and is accelerated to age;
3. the open structure of the side bearing can not effectively avoid sand and dust from affecting the working performance;
4. the size is large and the weight is heavy.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a railway freight car is elasticity side bearing and railway freight car bogie for vehicle to solve above-mentioned problem.
In order to achieve the above object, the utility model discloses an at first, railway freight car is with elasticity side bearing is disclosed, including wearing and tearing board, side bearing, rubber elastomer, roller assembly and apron, the wearing and tearing board is installed the upside of apron, roller assembly installs on the side bearing, rubber elastomer includes inner core, rubber layer and the overcoat that cup joints in proper order from inside to outside, the downside of apron is provided with the apron sliding sleeve, the overcoat is installed on the side bearing, the apron sliding sleeve sliding connection is in the outside of overcoat, and should lap and be provided with between sliding sleeve and the overcoat and be used for preventing overcoat and the frictional guidance tape of apron sliding sleeve.
Furthermore, the inner core, the rubber layer and the outer sleeve are integrally vulcanized and formed, and a plurality of metal inner sleeves are embedded in the rubber layer.
Further, be provided with the clearance between apron sliding sleeve and the overcoat, the axial is provided with a plurality of hoop grooves on the inner wall of apron sliding sleeve, the guidance tape sets up the hoop inslot just laminates the overcoat sets up.
Furthermore, a stepped hole is formed in the bottom of the side bearing seat, an outer sleeve flange is arranged at the bottom of the outer sleeve, the outer sleeve is sleeved in the stepped hole, and the outer sleeve flange is fixedly clamped through the stepped hole.
Furthermore, mounting holes for mounting and connecting are formed in two sides of the side bearing seat.
Furthermore, the wearing plate is arranged in a wearing plate mounting hole on the upper side of the cover plate in an interference fit mode, and a cover plate through hole penetrating into the cover plate sliding sleeve is formed in the bottom of the wearing plate mounting hole.
Further, the roller assembly comprises a roller and a roller shaft, and the roller is sleeved on the roller shaft.
Furthermore, bosses are arranged on two sides of the lower end of the cover plate, upright columns are arranged on two sides of the side bearing seat, and sliding grooves in sliding connection with the bosses are formed in the upright columns.
Further, the inner core is of a shaft sleeve structure with a central hole formed therein, the surface of the inner core, which is in contact with the rubber layer, is an inverted conical surface, and the surface of the outer sleeve, which is in contact with the rubber layer, is a conical surface.
Then, the utility model discloses a railway freight car bogie, including above-mentioned scheme railway freight car is with elasticity side bearing, be provided with on the bogie with the connecting hole that the mounting hole corresponds, bogie and side bearing are pegged graft through one the bolted connection of mounting hole and connecting hole.
Compared with the prior art, the utility model has the advantages of:
1. the side bearing of the utility model has simple structure, small installation size, reduced whole weight, detachable rubber elastic body, convenient assembly and disassembly, reduced maintenance and replacement cost, and meanwhile, the rubber elastic body of the side bearing is arranged in a closed way, thereby avoiding external acid-base pollution and sand dust interference and prolonging the service life of the rubber elastic body of the wearing part;
2. the isolated guide belt is arranged between the cover plate and the outer sleeve, so that severe abrasion between the cover plate and the outer sleeve is avoided, only parts such as the abrasion plate, the guide belt and the like need to be replaced during maintenance, the maintenance cost is reduced to a great extent, and the service life is further prolonged;
3. the rubber elastic body of the side bearing adopts a conical structure, and the structure is characterized in that the vertical displacement is large, and the vertical stroke of more than 30mm can be realized; the vertical rigidity of the structure is basically linear, so that the adjustment of the working height of the whole vehicle is facilitated;
4. the roller of the side bearing of the utility model can prevent the side rolling angle of the vehicle body from being too large; meanwhile, when the vehicle passes through a curve and the side roll angle of the vehicle is too large, the upper wear plate is pressed down to contact with the roller, and the roller can effectively reduce the turning resistance moment at the moment through rolling, so that the curve passing capacity of the vehicle is improved;
5. the utility model discloses a bogie does not need the side bearing box, has reduced the weight of bogie, has simplified the structure of bogie, but reuse such as side bearing seat, enclosing cover, economic environmental protection.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic front view of an elastic side bearing for a railway freight car according to an embodiment of the present invention;
fig. 2 is a schematic top view of an elastic side bearing for a railway freight car according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating an installation of the resilient side bearing for railway freight car on the bogie according to an embodiment of the present invention.
Illustration of the drawings:
1. a wear plate; 2. a side bearing seat; 3. a rubber elastomer; 4. a cover plate; 5. a rubber layer; 6. a jacket; 7. a cover plate sliding sleeve; 8. a guide belt; 9. a metal inner sleeve; 10. a circumferential groove; 11. a stepped hole; 12. a flange is sleeved; 13. a wear plate mounting hole; 14. a cover plate through hole; 15. a roller; 16. a roller shaft; 17. a boss; 18. a column; 19. a sliding connection groove; 20. a central bore; 21. a side bearing vertical stroke; 22. an inner core; 23. mounting holes; 24. a bogie; 25. connecting holes; 26. and (4) bolts.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1-2, the embodiment of the present invention firstly discloses an elastic side bearing for railway freight car, comprising a wear plate 1, a side bearing seat 2, a rubber elastic body 3, a roller assembly and a cover plate 4, wherein the wear plate 1 is installed on the upper side of the cover plate 4, the roller assembly is installed on the side bearing seat 2, specifically, the roller assembly comprises a roller 15 and a roller shaft 16, the roller 15 is sleeved on the roller shaft 16, the distance between the roller 15 and the upper surface of the wear plate 1 is a side bearing vertical stroke 21, the rubber elastic body 3 comprises an inner core 22, a rubber layer 5 and an outer sleeve 6 which are sleeved in sequence from inside to outside, the inner core 22, the rubber layer 5 and the outer sleeve 6 are vulcanized and formed as an integral body, a plurality of metal inner sleeves 9 are embedded in the rubber layer 5, thereby effectively improving the vertical bearing capacity and the vertical large deformation capacity, the vertical stroke can reach 40mm, for, realize the lightweight, the axle sleeve structure of interior centre bore 20 of inner core 22 for establishing, the downside of apron 4 is provided with apron sliding sleeve 7, overcoat 6 is installed on side bearing 2, apron sliding sleeve 7 sliding connection is in the outside of overcoat 6, and be provided with between this apron sliding sleeve 7 and the overcoat 6 and be used for preventing overcoat 6 and the frictional guidance tape 8 of apron sliding sleeve 7, on the one hand through the sliding connection mode of apron sliding sleeve 7 and apron sliding sleeve 7, outside acid and alkali pollution and sand and stone dust interference have been avoided, the life of wearing parts rubber elastomer 3 has been prolonged, and simultaneously, be provided with the guidance tape 8 of keeping apart between apron 4 and the overcoat 6, thereby violent wearing and tearing between apron 4 and the overcoat 6 have been avoided, only need to change parts such as wearing plate 1 and guidance tape 8 during the maintenance, the maintenance cost has been reduced of very big degree.
In this embodiment, when the guidance tape 8 is specifically set, a gap is provided between the cover plate sliding sleeve 7 and the outer sleeve 6, a plurality of circumferential grooves 10 are axially provided on the inner wall of the cover plate sliding sleeve 7, and the guidance tape 8 is arranged in the circumferential grooves 10 and attached to the outer sleeve 6, so as to ensure the sealing between the cover plate sliding sleeve 7 and the outer sleeve 6.
In this embodiment, in order to realize that rubber elastomer 3's installation is fixed, the bottom of side bearing seat 2 is provided with shoulder hole 11, the bottom of overcoat 6 is provided with overcoat flange 12, overcoat 6 cup joints in shoulder hole 11, and overcoat flange 12 is fixed through 11 joints of shoulder hole, thereby it is fixed with rubber elastomer 3's root, and the both sides of side bearing seat 2 are provided with the mounting hole 23 that is used for erection joint, thereby need not the side bearing mounting box, can install through the bolt, the structure is simplified, and the cost is reduced.
In the present embodiment, the wear plate 1 is fitted into the wear plate mounting hole 13 on the upper side of the cover 4 by interference fit to fix the wear plate 1, and the bottom of the wear plate mounting hole 13 is provided with a cover through hole 14 penetrating into the cover slide 7, so that the wear plate 1 is exhausted through the cover through hole 14 when being pressed in and expanded.
In the embodiment, bosses 17 are arranged on two sides of the lower end of the cover plate 4, upright posts 18 are arranged on two sides of the side bearing 2, and sliding grooves 19 which are in sliding connection with the bosses 17 are arranged on the upright posts 18, so that a proper buffer space is reserved for the cover plate 4 by controlling a proper gap, the instant impact on the wear plate 1 during movement is avoided, and the service life is prolonged; in addition, the relative rotation between the cover plate 4 and the side bearing seat 2 can be limited, and the stability of the movement of the vehicle body is ensured.
In this embodiment, in order to ensure the connection strength between the rubber layer 5 and the inner core 22 and the outer sleeve 6, the surface of the inner core 22 in contact with the rubber layer 5 is an inverted conical surface, and the surface of the outer sleeve 6 in contact with the rubber layer 5 is a conical surface.
As shown in fig. 3, the embodiment of the present invention then discloses a railway freight car bogie, which includes the above solution of the railway freight car long-stroke non-roller side bearing, the bogie 24 is provided with a connecting hole 25 corresponding to the mounting hole 23, the bogie 24 and the side bearing seat 2 are connected by a bolt 26 inserted into the connecting hole 25 and the mounting hole 23, so that the bogie 24 does not need to be provided with a side bearing box, the weight of the bogie 24 is reduced, and the railway freight car bogie is economical and environment-friendly.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a railway freight car is elasticity side bearing for vehicle, includes wearing plate (1), side bearing (2), rubber elastomer (3), roller assembly and apron (4), wearing plate (1) is installed the upside of apron (4), roller assembly installs on side bearing (2), rubber elastomer (3) are including inner core (22), rubber layer (5) and overcoat (6) that cup joint in proper order from inside to outside, its characterized in that, the downside of apron (4) is provided with apron sliding sleeve (7), overcoat (6) are installed on side bearing (2), apron sliding sleeve (7) sliding connection is in the outside of overcoat (6), and be provided with between this apron sliding sleeve (7) and overcoat (6) and be used for preventing overcoat (6) and apron sliding sleeve (7) frictional guidance tape (8).
2. A railway goods vehicle elastic side bearing according to claim 1, characterized in that mounting holes (23) for mounting connection are provided on both sides of the side bearing seat (2).
3. A railway goods train elastic side bearing according to claim 1, characterized in that a gap is provided between the cover plate sliding sleeve (7) and the outer sleeve (6), a plurality of circumferential grooves (10) are axially provided on the inner wall of the cover plate sliding sleeve (7), and the guide belt (8) is provided in the circumferential grooves (10) and attached to the outer sleeve (6).
4. The elastic side bearing for railway freight cars of claim 1, characterized in that the bottom of the side bearing seat (2) is provided with a stepped hole (11), the bottom of the outer sleeve (6) is provided with an outer sleeve flange (12), the outer sleeve (6) is sleeved in the stepped hole (11), and the outer sleeve flange (12) is clamped and fixed through the stepped hole (11).
5. A resilient side bearing for railway freight car according to any one of claims 1 to 4, wherein the wear plate (1) is fitted into a wear plate mounting hole (13) on the upper side of the cover plate (4) by interference fit, and a cover plate through hole (14) penetrating into the cover plate slide bushing (7) is provided at the bottom of the wear plate mounting hole (13).
6. A railway freight car resilient side bearing according to any one of claims 1 to 4, wherein the roller assembly comprises a roller (15) and a roller axle (16), the roller (15) being journalled on the roller axle (16).
7. A railway goods train elastic side bearing according to any one of claims 1 to 4, characterized in that bosses (17) are provided on both sides of the lower end of the cover plate (4), and uprights (18) are provided on both sides of the side bearing seat (2), and the uprights (18) are provided with sliding grooves (19) which are in sliding contact with the bosses (17).
8. A railway goods train elastic side bearing according to any one of claims 1 to 4, characterized in that the inner core (22) is a bushing structure with a central hole (20) inside, the inner core (22), the rubber layer (5) and the outer sleeve (6) are integrally vulcanized, and a plurality of metal inner sleeves (9) are embedded and fixed in the rubber layer (5).
9. A railway goods train elastic side bearing according to any one of claims 1 to 4, characterized in that the surface of the inner core (22) in contact with the rubber layer (5) is a reverse tapered surface, and the surface of the outer sleeve (6) in contact with the rubber layer (5) is a tapered surface.
10. A railway freight car bogie, characterized in that, comprising the elastic side bearing for railway freight car vehicle as claimed in any one of claims 1 to 9, the bogie (24) is provided with a connecting hole (25) corresponding to the mounting hole (23) of the side bearing seat (2), and the bogie (24) and the side bearing seat (2) are connected through a bolt (26) inserted into the mounting hole (23) and the connecting hole (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021109622.5U CN212890344U (en) | 2020-06-16 | 2020-06-16 | Elastic side bearing for railway freight car and railway freight car bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021109622.5U CN212890344U (en) | 2020-06-16 | 2020-06-16 | Elastic side bearing for railway freight car and railway freight car bogie |
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| Publication Number | Publication Date |
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| CN212890344U true CN212890344U (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021109622.5U Active CN212890344U (en) | 2020-06-16 | 2020-06-16 | Elastic side bearing for railway freight car and railway freight car bogie |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670885A (en) * | 2022-04-28 | 2022-06-28 | 中车长江运输设备集团有限公司 | Elastic side bearing for railway wagon bogie, swing bolster assembly with elastic side bearing and bogie with elastic side bearing |
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2020
- 2020-06-16 CN CN202021109622.5U patent/CN212890344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670885A (en) * | 2022-04-28 | 2022-06-28 | 中车长江运输设备集团有限公司 | Elastic side bearing for railway wagon bogie, swing bolster assembly with elastic side bearing and bogie with elastic side bearing |
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