CN212220233U - Axial rubber pad and cross bracing bogie - Google Patents
Axial rubber pad and cross bracing bogie Download PDFInfo
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- CN212220233U CN212220233U CN202022189066.3U CN202022189066U CN212220233U CN 212220233 U CN212220233 U CN 212220233U CN 202022189066 U CN202022189066 U CN 202022189066U CN 212220233 U CN212220233 U CN 212220233U
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Abstract
The utility model relates to an axial rubber pad and a cross bracing bogie, wherein, the axial rubber pad comprises an iron piece, a top plate, a rubber layer and a reinforcing piece; the iron piece is of a cylindrical structure; the glue layer comprises a columnar part, the columnar part is sleeved outside the iron part, a gap is reserved between the columnar part and the iron part, the lower part of the columnar part extends outwards along the radial direction of the columnar part to form a boss part, and the inner wall of the lower part of the boss part is fixed with the outer wall of the iron part; the reinforcing piece is embedded in the boss part along the circumferential direction; the top plate comprises an axial portion and an extension portion, the axial portion is fixed with the outer wall of the columnar portion, and the extension portion is fixed with the top end face of the boss portion. The service life of the axial rubber pad can be effectively prolonged, and the maintenance and application cost is further reduced.
Description
Technical Field
The utility model relates to an elastomeric element technical field, concretely relates to axial rubber pad and cross support bogie.
Background
The axial rubber pads are core components of the cross-bracing bogie, and the application of the axial rubber pads realizes the elastic connection between the cross rods and the side frame supporting seats, thereby ensuring the diamond-resistant rigidity and the long-term operation stability of the bogie. In order to further reduce the maintenance and application cost and solve the problem that the service life cycle of the rubber product of the truck is not matched with the service life of the conventional truck, the service life of the axial rubber pad needs to be ensured.
The axial rubber pad includes ironware and glue film, for guaranteeing axial rubber pad's rigidity, among the prior art, improves its rigidity through the hardness that increases the intermediate layer, but under this kind of setting, the hardness of glue film is great, the resilience is less, produces permanent deformation easily in the course of the work, leads to unable use, influences its life.
Therefore, how to improve the service life of the axial rubber pad to further reduce the maintenance and application costs is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an axial rubber pad and cross support bogie can effectively improve the life of axial rubber pad to further reduce maintenance, application cost.
In order to solve the technical problem, the utility model provides an axial rubber pad, which comprises an iron piece, a top plate, a rubber layer and a reinforcing piece; the iron piece is of a cylindrical structure; the glue layer comprises a columnar part, the columnar part is sleeved outside the iron part, a gap is reserved between the columnar part and the iron part, the lower part of the columnar part extends outwards along the radial direction of the columnar part to form a boss part, and the inner wall of the lower part of the boss part is fixed with the outer wall of the iron part; the reinforcing piece is embedded in the boss part along the circumferential direction; the top plate comprises an axial portion and an extension portion, the axial portion is fixed with the outer wall of the columnar portion, and the extension portion is fixed with the top end face of the boss portion.
The reinforcing part is arranged in the boss part of the rubber layer, the stress bearing surface of the rubber layer can be increased by the reinforcing part, and the axial rigidity of the rubber layer is increased.
Preferably, the bottom plate is fixedly arranged on the end face, far away from the top plate, of one side of the glue layer.
Preferably, the bottom plate and the iron piece are of an integrated structure, or the bottom plate and the iron piece are of a split structure fixed to each other.
Preferably, the glue layer is vulcanized and fixed among the iron piece, the top plate and the bottom plate.
Preferably, the reinforcement comprises a reinforcement plate and/or a coil spring.
Preferably, when the reinforcing member comprises a reinforcing plate, the reinforcing plate is provided with an axial through hole along the circumferential direction.
Preferably, the boss part is further provided with through holes along the axial direction thereof, and each through hole is arranged along the circumferential direction of the boss part; and/or through grooves are formed in the outer edge of the boss part along the axial direction of the boss part, and the through grooves are arranged along the circumferential direction of the boss part.
Preferably, the reinforcing member is of a unitary structure, or the reinforcing member comprises at least two reinforcing structures arranged at intervals in the circumferential direction.
Preferably, the outer edge of the boss part is provided with a groove with an arc-shaped inner wall inwards along the circumferential direction.
The utility model also provides a cross support bogie, it includes as above axial rubber pad.
The technical effect of the cross-bracing bogie with the axial rubber pad is similar to that of the axial rubber pad, and is not repeated herein for saving space.
Drawings
Fig. 1-2 are schematic structural views of an axial rubber pad provided in an embodiment of the present invention;
3-5 are schematic structural views of the iron member and the base plate;
FIG. 6 is a schematic structural view of an axial rubber pad with a through hole in the rubber layer;
FIG. 7 is a schematic view of the structure of an axial rubber pad when the rubber layer is provided with a groove structure;
FIG. 8 is a schematic view of a partial structure of an axial rubber pad;
FIGS. 9-15 are schematic structural views of the reinforcing member;
fig. 16 is an exploded view of the mounting structure with the axial rubber pad in use.
In fig. 1-16, the reference numerals are illustrated as follows:
100-axial rubber pad; 200-a support seat; 300-shaft end bolt;
1-an iron part;
2-top plate, 21-axial portion, 22-extension;
3-glue layer, 31-column part, 32-boss part, 33-through hole, 34-groove structure and 35-groove;
4-reinforcement, 41-axial through hole, 42-reinforcement structure;
5-a bottom plate;
6-gap.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the utility model provides an axial rubber pad 100 and cross support bogie, wherein, cross support bogie includes above-mentioned axial rubber pad 100. Specifically, as shown in fig. 1 and fig. 2, the axial rubber gasket 100 includes an iron member 1, a rubber layer 3 and a reinforcing member 4, wherein the iron member 1 is a cylindrical structure, a bolt is installed through the cylindrical structure during installation, the rubber layer 3 includes a column portion 31, the column portion 31 is also provided with an axial through hole 41 and is sleeved outside the iron member 1, when the column portion 31 is sleeved outside the iron member 1, a certain gap 6 is left between the column portion and the column portion, a lower end of the column portion 31 extends radially outward and forms a boss portion 32, the boss portion 32 is an annular structure, a lower inner wall of the boss portion is fixed to an outer wall of the iron member 1, the reinforcing member 4 is embedded into the boss portion 32 circumferentially, the top plate 2 is fixed to the rubber layer 3, correspondingly, the top plate 2 includes an axial portion 21 and an extension portion 22, wherein the axial portion 21 is fixed to the outer wall of the column portion 31, and the extension portion 22 is fixed to a top end face of the boss.
Be equipped with reinforcement 4 in the boss portion 32 of glue film 3, the atress loading end of glue film 3 can be increased in the setting of this reinforcement 4, increase the axial rigidity of glue film 3, therefore, when guaranteeing the axial rigidity of this axial rubber pad 100, the hardness requirement of glue film 3 itself reduces, therefore, can guarantee that glue film 3 has great resilience, make in the course of the work, glue film 3 is difficult for taking place permanent deformation, improve the life of glue film 3, and then improve the life of this axial rubber pad 100, reduce the risk that this axial rubber pad 100 became invalid.
The arrangement of the top plate 2 can support the glue layer 3, so that the friction between the glue layer 3 and other metals is reduced in the working process, the abrasion is reduced, and the service life is ensured. Specifically, the top plate 2 includes an axial portion 21 and an extension portion 22, wherein the axial portion 21 is fixed to an outer wall of the column portion 31, and the extension portion 22 is fixed to a top end surface of the boss portion 32.
Specifically, as shown in fig. 16, two axial rubber pads 100 are installed in pairs on two sides of the side frame support base 200, under the fastening action of the shaft end bolt 300, the axial front ends of the iron members 1 of the two axial rubber pads 100 contact with each other, and the boss portion 32 of the rubber layer 3 is pressed to deform, so that the axial rubber pads 100 reach the working state. Glue film 3 can provide the elastic force as the elastic component, and this axial rubber pad 100 can increase the rigidity of bogie and guarantee operating stability, and iron spare 1 can provide the effect of support and reinforcement to glue film 3, and glue film 3 can improve this axial rubber pad 100's wearability and play antidetonation, the effect of shocking resistance because it has great elasticity.
In the above embodiment, the axial rubber pad 100 further includes the bottom plate 5, the bottom plate 5 is fixedly disposed on the end surface of the rubber layer 3 away from the top plate 2, and the bottom plate 5 and the top plate 2 can respectively support the rubber layer 3 from two sides, so as to reduce the friction and wear of the end surface of the rubber layer 3 and ensure the service life of the rubber layer 3.
Further, in this embodiment, the bottom plate 5 and the iron member 1 are an integral structure (as shown in fig. 3), or the bottom plate 5 and the iron member 1 are split structures fixed to each other, specifically, the two can be fixed (as shown in fig. 5) by means of threaded connection (as shown in fig. 4) or welding, that is, in the working process, there is no relative movement between the bottom plate 5 and the iron member 1, so that the axial height dimension of the combination of the iron member 1 and the bottom plate 5 can be better controlled, which is beneficial to controlling the compression amount of the assembled rubber pad working area, and meanwhile, the bottom plate 5 and the iron member 1 are prevented from being separated, thereby ensuring the overall reliability and dimensional stability of the axial rubber pad 100.
In the above embodiment, the glue layer 3 is fixed between the iron member 1, the top plate 2 and the bottom plate 5 by vulcanization, and the glue layer 3 and the reinforcement 4 are also fixed by vulcanization, or in this embodiment, the glue layer 3 may be separately manufactured and molded, and the glue layer 3 and the iron member 1 are fixed by interference fit or the like, and the vulcanization fixation may ensure stability and simplify the manufacturing process.
In the above-described embodiment, the reinforcing member 4 includes the reinforcing plate and/or the coil spring, and, as shown in fig. 15, when the reinforcing member 4 includes the reinforcing plate, the reinforcing plate is provided with the axial through holes 41 along the circumferential direction thereof, specifically, there is no limitation in the shape, number, and the like of the axial through holes 41, and in order to make the axial rigidity of the reinforcing member 4 more uniform, the number of the axial through holes 41 is at least two and is provided at regular intervals along the circumferential direction of the reinforcing member 4. The arrangement of the axial through hole 41 can increase the fluidity of the rubber layer 3 in the vulcanization process so as to ensure the vulcanization effect. In addition, in this embodiment, the size, thickness, and the like of the reinforcing member 4 are not required, and may be specifically set according to actual needs.
In the above-described embodiment, the boss portion 32 is further provided with the through-hole 33 (shown in fig. 6) in the axial direction thereof, the through-hole 33 being provided in the circumferential direction of the boss portion 32, and/or the outer edge of the boss portion 32 is opened with the through-groove 34 (shown in fig. 7) in the axial direction thereof, the through-groove 34 being provided in the circumferential direction of the boss portion 32. Specifically, when the boss portion 32 is provided with the through holes 33, the number of the through holes 33 is not more than four, so as to ensure that the adhesive layer 3 has enough elastic force and simultaneously ensure the axial rigidity of the adhesive layer 3, the through holes 33 are uniformly distributed at radial and circumferential positions so as to ensure uniformity and stability, and the shape of the through holes 33 can be any of polygons such as a circle, a square and the like; when the outer edge of the boss portion 32 is provided with the through groove 34, the rubber layer 3 is prepared by means of segmented vulcanization, and the number of segments of the rubber layer 3 is preferably not more than four segments in order to secure the axial rigidity of the rubber layer 3 while securing sufficient elastic force. To ensure uniform axial rigidity of the boss portion 32, the through holes 33 are uniformly circumferentially spaced, and the through grooves 34 are uniformly circumferentially spaced.
That is to say, guarantee the axial rigidity of glue film 3 through reinforcement 4, also can adjust the axial rigidity simultaneously through setting up logical groove 34 and through-hole 33 for glue film 3 can satisfy axial rigidity and elasticity demand simultaneously.
In the above embodiment, the reinforcing member 4 may be a one-piece structure or may include at least two reinforcing structures 42 arranged at intervals in the circumferential direction, and in order to ensure uniform axial stiffness of the reinforcing member 4, the reinforcing structures 42 are arranged at intervals in the circumferential direction. Specifically, in this embodiment, the reinforcing member 4 may be a reinforcing plate or a coil spring, when the reinforcing member 4 is a reinforcing plate, the reinforcing member 4 may be a circular ring (as shown in fig. 9), a wave spring (as shown in fig. 10) or a spiral structure (as shown in fig. 11), or may be reinforcing structures 42 (as shown in fig. 12) uniformly spaced in the circumferential direction, and when the reinforcing member 4 is a coil spring, the reinforcing member 4 may be a whole vertically-arranged coil spring (as shown in fig. 13), or may be at least two coil springs with smaller dimensions uniformly spaced in the circumferential direction. Specifically, when the reinforcing member 4 is a segmented structure, the reinforcing member 4 may be two, three or four segments, preferably no more than five segments, so as to simplify the manufacturing process.
In the above embodiment, the groove 35 is formed in the outer edge of the boss portion 32 in the circumferential direction, the groove bottom of the groove 35 is an inward concave arc-shaped surface, in a long-time application process, the boss portion 32 of the rubber layer 3 tends to protrude outward when being extruded in the circumferential direction, the arrangement of the groove 35 can effectively reduce the tendency that the rubber layer 3 protrudes outward when being extruded in the circumferential direction, cracking and crack failures are reduced, and the service life of the axial rubber gasket 100 is greatly prolonged.
Specifically, in this embodiment, no specific requirement is made on the shape and depth of the groove 35, for example, the outer circular surface of the adhesive layer 3 between the top plate 2 and the reinforcing member 4 and between the reinforcing member 4 and the bottom plate 5, a horizontal straight section and/or a vertical straight section may be provided at the end portion of the groove 35, where the horizontal straight section is an opening section provided with one section parallel to the end surface of the reinforcing member 4 at the opening end of the groove 35, and the vertical straight section is an opening end of the groove 35 and the top plate 2, and a certain distance is left between the reinforcing member 4 and the bottom plate 5 along the vertical direction, or the groove 35 may be provided with only an arc-shaped groove without a structure of the horizontal straight section or the vertical straight section, which is not specifically limited. In this embodiment, it is preferable to set the depth of the groove 35 to be not more than 1/5, which is the difference between the inside and outside radii of the extension 22 of the top plate 2 (the extension 22 has a ring-shaped structure), so that the resilience of the rubber layer 3 can be ensured while the crack and crack failure can be reduced.
In addition, in the present embodiment, as shown in fig. 8, the inner diameter Φ of the columnar portion 31 and the height L of the gap 6 (specifically, the distance between the glue layer 3 from the top end of the columnar portion 31 to the top end of the boss portion 32 to which the iron member 1 is fixed) are not limited, and if the inner diameter Φ of the columnar portion 31 is set to 46mm to 50mm and the height L of the gap 6 is set to 17mm to 23mm, both are slightly increased compared with the prior art, which is beneficial to the axial rubber pad 100 to exert its elastic function, and simultaneously, the axial rigidity of the axial rubber pad 100 is ensured and the local stress is prevented from being too large.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An axial rubber pad is characterized by comprising an iron piece (1), a top plate (2), a rubber layer (3) and a reinforcing piece (4);
the iron piece (1) is of a cylindrical structure;
the glue layer (3) comprises a columnar part (31), the columnar part (31) is sleeved outside the iron part (1) and a gap (6) is reserved between the columnar part (31) and the iron part (1), the lower part of the columnar part (31) extends outwards along the radial direction of the columnar part to form a boss part (32), and the inner wall of the lower part of the boss part (32) is fixed with the outer wall of the iron part (1);
the reinforcing piece (4) is embedded in the boss part (32) along the circumferential direction;
the top plate (2) comprises an axial portion (21) and an extension portion (22), the axial portion (21) is fixed with the outer wall of the columnar portion (31), and the extension portion (22) is fixed with the top end face of the boss portion (32).
2. Axial rubber pad according to claim 1, characterized by further comprising a bottom plate (5), wherein the bottom plate (5) is fixedly arranged on one side end face of the rubber layer (3) far away from the top plate (2).
3. Axial rubber pad according to claim 2, characterized in that the bottom plate (5) and the iron (1) are of one-piece construction or the bottom plate (5) and the iron (1) are of split construction fixed to each other.
4. Axial rubber pad according to claim 2, characterized in that the glue layer (3) is vulcanized between the iron element (1), the top plate (2) and the bottom plate (5).
5. Axial rubber pad according to claim 4, characterized in that the reinforcement (4) comprises a reinforcement plate and/or a helical spring.
6. Axial rubber pad according to claim 5, characterized in that when the reinforcement (4) comprises the reinforcement plate, the reinforcement plate is provided with axial through holes (41) in the circumferential direction.
7. Axial rubber pad according to claim 6, characterized in that the boss portion (32) is further provided with a through hole (33) in its axial direction, the through hole (33) being provided in the circumferential direction of the boss portion (32);
and/or a through groove (34) is formed in the outer edge of the boss part (32) along the axial direction of the boss part, and the through groove (34) is arranged along the circumferential direction of the boss part (32).
8. Axial rubber pad according to any one of claims 1-7, characterized in that the reinforcement (4) is of one-piece construction or that the reinforcement (4) comprises at least two circumferentially spaced reinforcement structures (42).
9. Axial rubber pad according to one of claims 1-7, characterized in that the outer edge of the boss part (32) is provided circumferentially inwards with a groove (35) having an inner wall with an arc-shaped surface.
10. A cross-bracing bogie comprising an axial rubber pad (100) according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022189066.3U CN212220233U (en) | 2020-09-29 | 2020-09-29 | Axial rubber pad and cross bracing bogie |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022189066.3U CN212220233U (en) | 2020-09-29 | 2020-09-29 | Axial rubber pad and cross bracing bogie |
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| CN212220233U true CN212220233U (en) | 2020-12-25 |
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| CN202022189066.3U Active CN212220233U (en) | 2020-09-29 | 2020-09-29 | Axial rubber pad and cross bracing bogie |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112046535A (en) * | 2020-09-29 | 2020-12-08 | 中车齐齐哈尔车辆有限公司 | Axial rubber pad and cross bracing bogie |
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- 2020-09-29 CN CN202022189066.3U patent/CN212220233U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112046535A (en) * | 2020-09-29 | 2020-12-08 | 中车齐齐哈尔车辆有限公司 | Axial rubber pad and cross bracing bogie |
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