CN111591314A - Long-stroke non-roller side bearing of railway freight car and bogie - Google Patents
Long-stroke non-roller side bearing of railway freight car and bogie Download PDFInfo
- Publication number
- CN111591314A CN111591314A CN202010547412.2A CN202010547412A CN111591314A CN 111591314 A CN111591314 A CN 111591314A CN 202010547412 A CN202010547412 A CN 202010547412A CN 111591314 A CN111591314 A CN 111591314A
- Authority
- CN
- China
- Prior art keywords
- side bearing
- cover plate
- hole
- plate
- long
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/14—Side bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/14—Side bearings
- B61F5/142—Side bearings made of rubber elements, graphite or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention discloses a long-stroke non-roller side bearing of a railway freight car and a bogie, wherein the side bearing comprises a wear plate, a side bearing seat, a rubber elastic body, a jacket and a cover plate, the wear plate is arranged on the upper surface of the cover plate, the side bearing seat comprises a side bearing mounting plate and a side bearing column, a mounting hole is formed in the side bearing mounting plate, the rubber elastic body is connected between the jacket and the side bearing column, the jacket is supported on the lower side of the cover plate, a cover plate through hole is formed in the cover plate, a wear plate through hole is formed in the wear plate, and the upper end of the side bearing column is in sliding connection with the cover plate through. The side bearing seat has the function of a roller, and has the advantages of simple structure, light weight, small size, convenience in assembly and disassembly and low maintenance and replacement cost; the side bearing cover plate is connected with the rubber elastic body outer sleeve in an interference assembly manner and can freely move in a vertical full stroke manner; a gap is reserved between the metal cover plate and the side bearing seat, and sufficient longitudinal and transverse rigidity can be provided.
Description
Technical Field
The invention relates to the technical field of railway vehicles, in particular to a long-stroke non-roller side bearing and a bogie of a railway freight car.
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.
With the continuous speed increase of railway vehicles, higher and higher requirements are put on the operation stability and safety of the railway vehicles, and the side bearing is used as an important accessory of the railway freight car and is a key component influencing the dynamic performance and the operation safety of the railway freight car.
The existing side bearing structure, for example, "a long-stroke elastic side bearing for railway freight car" disclosed in chinese patent CN201261469, may have the following problems:
1. the main body part of the side bearing and the roller are positioned at different positions, so that the structure is complex, the cost is relatively high, and the maintenance and replacement cost is increased;
2. the upper body and the lower body have a rubber elastic body interposed therebetween, resulting in insufficient rigidity of the upper body between the longitudinal direction and the lateral direction.
Disclosure of Invention
The invention aims to provide a long-stroke non-roller side bearing of a railway freight car and a bogie, thereby solving the problems.
In order to achieve the purpose, the invention firstly discloses a long-stroke non-roller side bearing of a railway freight car, which comprises a wear plate, a side bearing seat, a rubber elastic body, a jacket and a cover plate, wherein the wear plate is arranged on the upper surface of the cover plate, the side bearing seat comprises a side bearing mounting plate and a side bearing column, a mounting hole is formed in the side bearing mounting plate, the rubber elastic body is connected between the jacket and the side bearing column, the jacket is supported on the lower side of the cover plate, a cover plate through hole is formed in the cover plate, a wear plate through hole is formed in the wear plate, and the upper end of the side bearing column is in sliding connection with the cover plate through hole and the wear plate through hole.
Further, the aperture of the wearing plate through hole is larger than that of the cover plate through hole.
Furthermore, the side bearing column is inserted in the cover plate through hole and is in clearance fit with the cover plate through hole.
Furthermore, the surface of the side bearing column matched with the rubber elastic body and the surface of the outer sleeve matched with the rubber elastic body are conical surfaces.
Furthermore, a plurality of coaxial metal inner sleeves are embedded in the rubber elastic body.
Furthermore, the lower end of the cover plate is provided with a sleeve counter bore, and the outer sleeve is sleeved in the sleeve counter bore.
Furthermore, a limit step is arranged on the side bearing column, and when the side bearing column extends out of the wearing plate through hole, the cover plate is abutted against the limit step.
Furthermore, the rubber elastic body, the outer sleeve and the side bearing column are integrally vulcanized and formed.
Further, the wearing plate is installed in the cover plate installation hole of the cover plate in an interference fit mode.
Then, the invention discloses a bogie which comprises the long-stroke non-roller side bearing of the railway freight car, wherein the bogie is provided with a connecting hole corresponding to the mounting hole, and the bogie and the side bearing mounting plate are connected through a bolt inserted in the connecting hole and the mounting hole.
Compared with the prior art, the invention has the advantages that:
1. the side bearing seat has the function of a roller, and has the advantages of simple structure, light weight, small size, convenience in assembly and disassembly and low maintenance and replacement cost;
2. the rubber elastomer adopts a single-cylinder conical structure, has small creep deformation, can be randomly adjusted within 20-40mm in vertical stroke, greatly reduces the occupied space of the product, and reduces the weight of the product by more than 40 percent on the basis of the domestic long-stroke side bearing used in China;
3. the side bearing cover plate is connected with the rubber elastic body outer sleeve in an interference assembly manner and can freely move in a vertical full stroke manner; a gap is reserved between the metal cover plate and the side bearing seat, so that enough longitudinal and transverse rigidity can be provided;
4. the elastic side bearing can equally replace an inlet long-stroke elastic side bearing used on the existing outlet wagon, and can save cost and reduce purchasing period.
5. The bogie does not need a side bearing box, reduces the weight of the bogie, simplifies the structure of the bogie, can repeatedly utilize a side bearing seat, an outer cover and the like, and is economic and environment-friendly.
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, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic front view of a long travel non-roller side bearing of a railway freight car vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a long travel roller-free side bearing for a railway freight car according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view at A of FIG. 2;
fig. 4 is a schematic view of the installation of the long-stroke non-roller side bearing of the railway freight car on the bogie according to the embodiment of the invention.
Illustration of the drawings:
1. a wear plate; 2. a side bearing seat; 3. a rubber elastomer; 4. a jacket; 5. a cover plate; 6. a side bearing mounting plate; 7. a side bearing column; 8. mounting holes; 9. a cover plate through hole; 10. a wear plate through hole; 11. a metal inner sleeve; 12. sleeving a counter bore; 13. a limiting step; 14. a cover plate mounting hole; 15. vertical stroke; 16. a radial gap; 17. a bogie; 18. connecting holes; 19. 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. 1-3, the embodiment of the invention firstly discloses a long-stroke non-roller side bearing of a railway freight car, which comprises a wear plate 1, a side bearing seat 2, a rubber elastic body 3, an outer sleeve 4 and a cover plate 5, wherein the wear plate 1 is arranged on the upper surface of the cover plate 5, in particular, the wear plate 1 is arranged in a cover plate mounting hole 14 of the cover plate 5 in an interference fit manner, thereby realizing the fixation of the wearing plate 1, the side bearing seat 2 comprises a side bearing mounting plate 6 and a side bearing column 7 which are in an integrated structure, the side bearing mounting plate 6 is provided with a mounting hole 8, install the side bearing on railway freight car through mounting hole 8, rubber elastomer 3 rigid coupling is between overcoat 4 and side bearing post 7, specifically takes shape through integral type vulcanization process, and overcoat 4 supports and leans on the downside of lapping 5, and specifically, the lower extreme of lapping 5 is provided with cup joints counter bore 12, and overcoat 4 cup joints in cup joints counter bore 12. The cover plate 5 is provided with a cover plate through hole 9, the wear plate 1 is provided with a wear plate through hole 10, the wear plate through hole 10 is coaxially aligned with the cover plate through hole 9, the upper end of the side bearing column 7 is in sliding connection with the cover plate through hole 9 and the wear plate through hole 10, so that when the weight of a carriage is pressed on the wear plate 1, the side bearing column 7 can slide along the cover plate through hole 9 and the wear plate through hole 10, when the set maximum vertical stroke 15 is reached, the side bearing column 7 can directly support the vehicle body, the rubber elastic body 3 is protected, overload damage is avoided, and the vehicle body can be prevented from further rollover to cause overturn accidents.
In the present embodiment, the diameter of the wear plate through hole 10 is larger than the diameter of the cover plate through hole 9, so that even if the wear plate 1 is deformed by pressure and the wear plate through hole 10 becomes smaller, the side bearing 7 can support the vehicle body through the wear plate through hole 10, and interference of the wear plate 1 is avoided.
In the present embodiment, the side support column 7 is inserted into the cover plate through hole 9 and is in clearance fit with the cover plate through hole 9 for adjusting the radial clearance 16 in the horizontal direction, so that the rubber elastic body 3 can provide proper rigidity in the range of the clearance during the movement in the horizontal direction. When the clearance is exceeded, the rigid stop can be immediately realized, and compared with the existing side bearing structure, the positioning capacity in the horizontal direction can be improved, and the curve passing performance of the vehicle can be improved.
In this embodiment, the surface of the side bearing column 7 matched with the rubber elastic body 3 and the surface of the outer sleeve 4 matched with the rubber elastic body 3 are both conical surfaces, and the conical surfaces have a certain supporting function, so that the fixing strength of the rubber elastic body 3 can be improved.
In the present embodiment, in order to increase the rigidity of the rubber elastic body 3 and prolong the service life of the rubber elastic body 3, a plurality of coaxial metal inner sleeves 11 are embedded in the rubber elastic body 3.
In this embodiment, the side bearing column 7 is provided with a limit step 13, and when the side bearing column 7 extends out of the wear plate through hole 10, the cover plate 5 abuts against the limit step 13, so that the cover plate 5 directly supports and promotes the protection effect thereof.
As shown in fig. 4, the embodiment of the invention further discloses a bogie, which comprises the long-stroke non-roller side bearing of the railway freight car with the scheme, the bogie 17 is provided with a connecting hole 18 corresponding to the mounting hole 8, and the bogie 17 and the side bearing mounting plate 6 are connected through a bolt 19 inserted in the connecting hole 18 and the mounting hole 8, so that a side bearing box is not required to be mounted on the bogie 17, the weight of the bogie 17 is reduced, and the 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. A long-stroke non-roller side bearing of a railway freight car is characterized by comprising a wearing plate (1), a side bearing seat (2), a rubber elastic body (3), an outer sleeve (4) and a cover plate (5), the wearing plate (1) is arranged on the upper surface of the cover plate (5), the side bearing seat (2) comprises a side bearing mounting plate (6) and a side bearing column (7), the side bearing mounting plate (6) is provided with a mounting hole (8), the rubber elastic body (3) is fixedly connected between the outer sleeve (4) and the side bearing column (7), the outer sleeve (4) is supported at the lower side of the cover plate (5), a cover plate through hole (9) is arranged on the cover plate (5), the wear plate (1) is provided with a wear plate through hole (10), and the upper end of the side bearing column (7) is in sliding connection with the cover plate through hole (9) and the wear plate through hole (10).
2. A railway freight car long-stroke roller-less side bearing according to claim 1, wherein the wear plate through-hole (10) has a larger bore diameter than the cover plate through-hole (9).
3. A railway freight car vehicle long-stroke roller-free side bearing as claimed in claim 1, wherein the side bearing column (7) is inserted in the cover plate through hole (9) and is in clearance fit with the cover plate through hole (9).
4. The long-stroke non-roller side bearing of the railway freight car as claimed in claim 1, wherein the surface of the side bearing column (7) engaged with the rubber elastic body (3) and the surface of the outer sleeve (4) engaged with the rubber elastic body (3) are both tapered surfaces.
5. A railway freight-car long-travel roller-less side bearing according to claim 1, wherein a plurality of coaxial inner metal sleeves (11) are further embedded in the rubber elastic body (3).
6. The long-stroke non-roller side bearing of the railway freight car as claimed in claim 1, wherein the lower end of the cover plate (5) is provided with a sleeve counterbore (12), and the outer sleeve (4) is sleeved in the sleeve counterbore (12).
7. A railway freight car vehicle long-stroke roller-free side bearing according to claim 1, characterized in that the side bearing column (7) is provided with a limit step (13), and when the side bearing column (7) extends out of the wear plate through hole (10), the cover plate (5) abuts against the limit step (13).
8. A railway freight-car long-travel roller-free side bearing according to any one of claims 1 to 7, characterized in that the rubber elastic body (3), the outer sleeve (4) and the side bearing column (7) are integrally formed by vulcanization.
9. A railway goods vehicle long-stroke roller-free side bearing according to any one of claims 1 to 7, characterized in that the wear plate (1) is mounted in an interference fit in the cover mounting hole (14) of the cover (5).
10. A bogie comprising a long-stroke roller-free side bearing for a railway freight car according to any one of claims 1 to 9, wherein the bogie (17) is provided with a connecting hole (18) corresponding to the mounting hole (8), and the bogie (17) and the side bearing mounting plate (6) are connected by a bolt (19) inserted into the connecting hole (18) and the mounting hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010547412.2A CN111591314A (en) | 2020-06-16 | 2020-06-16 | Long-stroke non-roller side bearing of railway freight car and bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010547412.2A CN111591314A (en) | 2020-06-16 | 2020-06-16 | Long-stroke non-roller side bearing of railway freight car and bogie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111591314A true CN111591314A (en) | 2020-08-28 |
Family
ID=72180938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010547412.2A Pending CN111591314A (en) | 2020-06-16 | 2020-06-16 | Long-stroke non-roller side bearing of railway freight car and bogie |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111591314A (en) |
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 |
-
2020
- 2020-06-16 CN CN202010547412.2A patent/CN111591314A/en active Pending
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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2910705Y (en) | Bogie of railway wagon | |
| CN101607562B (en) | Journal spring buffering method for railbound vehicle bogie and journal spring | |
| CN102490753A (en) | Traction pull rod device of railway wagon bogie | |
| CN100450845C (en) | Quick railway goods train bogie | |
| CN111674419A (en) | Articulated bogie with embedded vibration and noise reduction device | |
| CN111591314A (en) | Long-stroke non-roller side bearing of railway freight car and bogie | |
| CN212401216U (en) | Long-stroke non-roller side bearing of railway freight car and bogie | |
| CN203143943U (en) | Bridge type crane guide wheel device | |
| CN111703459B (en) | Railway freight car side bearing and railway freight car bogie | |
| CN212890344U (en) | Elastic side bearing for railway freight car and railway freight car bogie | |
| CN212890345U (en) | Long-stroke elastic side bearing for railway freight car bogie and railway freight car bogie | |
| CN212605150U (en) | Articulated bogie with embedded vibration and noise reduction device | |
| CN210133119U (en) | Rigidity-adjustable transverse elastic stop on anti-rolling torsion bar | |
| CN214823273U (en) | Abrasion strip device | |
| CN113059972A (en) | Lightweight suspension device | |
| CN211684550U (en) | Front swing arm front bushing limiting structure | |
| CN113696924A (en) | Primary suspension device, positioning spring, bogie and rail train | |
| CN202935362U (en) | Locomotive bogie and axle box body thereof | |
| CN110654411B (en) | Elastic anti-rolling device of railway wagon | |
| CN202413827U (en) | Draw bar device of bogie for railway wagon | |
| CN202669415U (en) | Balance shaft assembly | |
| CN201151407Y (en) | Longitudinal elastic toggle arm device for railway wagon bogie | |
| CN110762121A (en) | Precise bearing for rail transit connection | |
| CN212950609U (en) | Long-stroke side bearing for railway freight car bogie | |
| KR200191023Y1 (en) | A primary suspension system of carrier for high speed freight car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |