CN212401216U - Long-stroke non-roller side bearing of railway freight car and bogie - Google Patents

Abstract

The utility model discloses a railway freight car vehicle long stroke does not have roller side bearing and bogie, the side bearing includes wearing plate, the side bearing seat, rubber elastomer, overcoat and apron, the upper surface at the apron is installed to the wearing plate, the side bearing seat includes side bearing mounting panel and side bearing post, be provided with the mounting hole on the side bearing mounting panel, rubber elastomer connects between overcoat and side bearing post, the overcoat supports the downside at the apron, be provided with the apron through-hole on the apron, be provided with wearing plate through-hole on the wearing plate, the upper end and the apron through-hole and the wearing plate through-hole sliding connection of side bearing post. The utility model has the functions of a roller, simple structure, light weight, small size, convenient assembly and disassembly and low maintenance and replacement cost; the side bearing cover plate of the utility model is connected with the rubber elastic body jacket through interference fit, and can move freely in the vertical direction in the whole stroke; a gap is reserved between the metal cover plate and the side bearing seat, and sufficient longitudinal and transverse rigidity can be provided.

Description

Long-stroke non-roller side bearing of railway freight car and bogie

Technical Field

The utility model relates to a rail vehicle technical field especially relates to a railway freight car long stroke does not have roller side bearing and bogie.

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.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a railway freight car long stroke does not have roller side bearing and bogie to solve above-mentioned problem.

In order to realize the above-mentioned purpose, the utility model discloses a railway freight car long stroke does not have roller side bearing at first, including wearing plate, side bearing, rubber elastomer, overcoat and apron, the wearing plate is installed the upper surface of apron, the side bearing includes side bearing mounting panel and side support post, be provided with the mounting hole on the side bearing mounting panel, rubber elastomer connects between overcoat and the side bearing post, the overcoat supports the downside of apron, be provided with the apron through-hole on the apron, be provided with the wearing plate through-hole on the wearing plate, the upper end of side support post with apron through-hole and wearing plate through-hole sliding connection.

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 utility model discloses a bogie, including above-mentioned scheme railway freight car long stroke does not have roller side bearing, be provided with on the bogie with the connecting hole that the mounting hole corresponds, bogie and side bearing mounting panel are pegged graft through one the bolted connection of connecting hole and mounting hole.

Compared with the prior art, the utility model has the advantages of:

1. the utility model has the functions of a roller, simple structure, light weight, small size, convenient assembly and disassembly and low maintenance and replacement cost;

2. the rubber elastic body of the utility model adopts a single-cylinder conical structure, the creep is small, the vertical stroke can be adjusted at will between 20 mm and 40mm, simultaneously the occupied space of the product is greatly reduced, and the weight of the product is reduced by more than 40 percent on the basis of the domestic long-stroke side bearing used in China;

3. the side bearing cover plate of the utility model is connected with the rubber elastic body jacket through interference fit, and can move freely in the vertical direction in the whole stroke; 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 utility model discloses an import long stroke elasticity side bearing that uses on the current export freight train of equivalent replacement can practice thrift the cost and reduce the purchase cycle.

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 a long-stroke 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-stroke non-roller side bearing of 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 illustrating the installation of the long-stroke non-roller side bearing of the railway freight car on the bogie according to the embodiment of the present 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 present invention firstly discloses a long-stroke non-roller side bearing of a railway freight car, comprising 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 mounted on the upper surface of the cover plate 5, specifically, the wear plate 1 is mounted 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 present invention then discloses a bogie, including the long-stroke non-roller side bearing of the railway freight car with the above-mentioned scheme, the bogie 17 is provided with a connecting hole 18 corresponding to the mounting hole 8, 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, so that the bogie 17 does not need to be provided with a side bearing box, 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 non-roller side bearing for a railway freight car according to any one of claims 1 to 9, the bogie (17) being provided with attachment holes (18) corresponding to the mounting holes (8), the bogie (17) and the side bearing mounting plate (6) being connected by means of bolts (19) inserted into the attachment holes (18) and the mounting holes (8).

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