CN115972813A - Elastic wheel of railway vehicle - Google Patents
Elastic wheel of railway vehicle Download PDFInfo
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- CN115972813A CN115972813A CN202211619964.5A CN202211619964A CN115972813A CN 115972813 A CN115972813 A CN 115972813A CN 202211619964 A CN202211619964 A CN 202211619964A CN 115972813 A CN115972813 A CN 115972813A
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- outer ring
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Abstract
The invention discloses an elastic wheel of a railway vehicle, wherein a first rubber outer ring, a first rigidity plate and a first rubber inner ring are sequentially arranged between a wheel hoop and a wheel core, a second rubber outer ring, a second rigidity plate and a second rubber inner ring are sequentially arranged between the wheel hoop and a compression ring, and the compression ring is connected with the wheel core through a fastener. The rubber outer ring, the rubber inner ring and the rigidity plate are matched through the concave-convex lotus edge structure, so that the rubber outer ring and the rubber inner ring are prevented from rotating in a staggered manner along the tangential direction. Meanwhile, the rigidity plate made of metal and clamped between the rubber outer ring and the rubber inner ring greatly improves the circumferential tangential shear strength of the rubber outer ring and the rubber inner ring, avoids large displacement dislocation caused by elastic deformation of rubber, and solves the problem of delay of the elastic wheel. Meanwhile, the concave-convex structure of the lotus leaf edge is arranged on the rubber ring, and compared with the arrangement of the groove on the metal piece, the processing procedures are greatly reduced, and the processing difficulty is reduced.
Description
Technical Field
The invention relates to the technical field of elastic wheel structures of rail vehicles, in particular to an elastic wheel of a rail vehicle.
Background
The conventional elastic wheel product for the railway vehicle mainly comprises a wheel band, a wheel core, a pressure ring, a rubber ring, wheel bolts and the like. The compressed rubber block is arranged in an inner cavity between the wheel rim and the wheel core and between the wheel rim and the compression ring, plays the roles of shock absorption and noise reduction as a damping unit, and connects all components of the wheel into a whole through fasteners such as bolts. The rubber block and metal pieces (a wheel rim, a wheel core and a pressure ring) of the conventional elastic wheel of the railway vehicle ensure that the wheel rim, the wheel core and the pressure ring do not slide in a staggered manner through friction force between mutually contact surfaces, namely, the wheel does not delay.
In the elastic wheel of the railway vehicle, in order to reduce the phenomenon of wheel retardation, the friction force between rubber and metal parts is generally increased, as disclosed in CN202121536416.7, the elastic wheel of the railway vehicle for preventing retardation comprises a wheel rim, a wheel center, a pressing ring, a first rubber ring and a second rubber ring, wherein the first rubber ring is installed between the wheel rim and the wheel center, the second rubber ring is installed between the wheel rim and the pressing ring, and the pressing ring is connected with the wheel center through a fastener; the inner ring surface of the wheel band is divided into a first inner ring surface and a second inner ring surface, a first boss or a second groove which is circumferentially arranged is arranged on the wheel center or/and the outer ring surface of the pressure ring, and a first groove or a second boss matched with the first boss or the second groove is arranged on the first inner ring surface or/and the second inner ring surface. According to the anti-shear structure, the anti-shear structure is arranged on the wheel, so that the wheel has the anti-delay function, meanwhile, the structure of the wheel is simplified as much as possible, and the reliability of the anti-delay elastic wheel of the railway vehicle is improved. Although the patent can better increase the friction between the rubber and the metal piece, the adopted single anti-skid mode has the following defects:
firstly, grooves corresponding to the grooves in the rubber ring need to be processed in metal parts such as a wheel rim, a wheel core and a pressure ring, and the processing technology is complex and has high difficulty;
secondly, the bosses and the grooves on the rubber ring and the metal piece are required to be aligned one by one, the requirement on precision control is high when the rubber ring is installed or pressed, and the local stress is easy to generate overlarge condition due to the non-uniformity of rubber installation, so that the false delay phenomenon is caused, namely, in the use process, the wheel is circularly stressed, the stress is released, and the condition of one-time dislocation between the wheel and the rubber is caused.
The elastic wheels of the rail vehicle which are delayed are difficult to avoid in the running process of the rail vehicle, and the running safety of the train is threatened. Therefore, it is necessary to provide a safety hazard of the elastic wheel of the railway vehicle in a single anti-slip mode of only relying on the friction force of the contact surface with low cost.
Disclosure of Invention
The invention aims to solve the technical problem that the elastic wheel of the rail vehicle is easy to damage and lose efficacy due to stress concentration in the installation process by using a single mode to enhance the friction force between a rubber ring and a metal piece of the existing elastic wheel of the rail vehicle.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a rail vehicle elasticity wheel, includes wheel band, wheel core, clamping ring, rubber outer loop, rubber inner ring and rigidity board, be equipped with first rubber outer loop, first rigidity board and first rubber inner ring between wheel band and the wheel core in proper order, be equipped with second rubber outer loop, second rigidity board and second rubber inner ring between wheel band and the clamping ring in proper order. The wheel rim is fixedly connected with the first rubber outer ring and the second rubber outer ring, the wheel core is fixedly connected with the first rubber inner ring, the pressing ring is fixedly connected with the second rubber inner ring, and the pressing ring is connected with the wheel core through a fastener.
The first stiffness plate and the second stiffness plate are provided with smooth transition lotus leaf edge structures, and the first rubber outer ring and the first rubber inner ring which are in contact with the first stiffness plate and the second rubber outer ring and the second rubber inner ring which are in contact with the second stiffness plate are both provided with concave-convex structures matched with the lotus leaf edge structures in shape. According to the invention, when the rubber outer ring, the rigidity plate and the rubber inner ring are pressed together, the lotus-leaf-edge-shaped concave-convex structure is the same as the mortise and tenon structure, the rubber outer ring and the rubber inner ring are prevented from rotating in a staggered manner in the tangential direction, the rigidity plate made of metal and clamped between the rubber outer ring and the rubber inner ring greatly improves the circumferential tangential shear strength of the whole rubber outer ring and the rubber inner ring, avoids large displacement dislocation caused by rubber elastic deformation, and solves the problem of delay of the elastic wheel.
Furthermore, the lotus leaf edge structure is arranged in the circumferential direction, and the radian of the lotus leaf edge relative to the circle center is set to be 0.105-1.57. Preferably, the arc is set to 0.42.
Furthermore, the lotus leaf edge structures of the rubber outer ring, the rubber inner ring and the rigidity plate are uniformly distributed at intervals in the lotus leaf edge structures with the same size or different sizes.
Furthermore, the lotus leaf edge structures on the first rigid plate and the second rigid plate are uniformly distributed on the whole circle of the rigid plate.
Furthermore, the lotus leaf edge structures on the first rigidity plate and the second rigidity plate are uniformly distributed on the rigidity plate at intervals.
Furthermore, the inner diameter of the wheel rim is a conical convex surface, the wheel core and the pressure ring are assembled into a conical concave surface, and the combined radial section is of a V-shaped structure.
Furthermore, the fixed connection mode includes the hot vulcanization bonding, will rim and rubber outer loop, wheel core and clamping ring and rubber inner ring and be connected and become a whole, avoid appearing sliding between metalwork and the rubber outer loop.
Furthermore, the surfaces of the first rigid plate and the second rigid plate are subjected to sand blasting or sand blasting and phosphating treatment, so that the surface roughness is increased, and the friction force is improved.
Further, the first rubber outer ring and the second rubber outer ring are of a split structure or an integrated structure.
Further, the rubber outer ring, the rubber inner ring and the rigidity plate are distributed in a sectional mode among the wheel rim, the wheel core and the pressure ring.
Compared with the prior art, the beneficial effects are that:
the invention adopts a multilayer structure of the rubber outer ring, the rubber inner ring and the rigidity plate, and prevents the rubber outer ring and the rubber inner ring from rotating in a staggered way along the tangential direction by utilizing the matching of the contact surfaces through the concave-convex lotus edge structure. Meanwhile, the rigidity plate made of metal materials and clamped between the rubber outer ring and the rubber inner ring greatly improves the circumferential tangential shear strength of the rubber outer ring and the rubber inner ring, avoids large displacement dislocation caused by elastic deformation of rubber, and solves the problem of slowness of the elastic wheel.
When the elastic wheel is assembled, the concave-convex structures of the rubber outer ring and the rubber inner ring play a role in positioning, and the condition that local stress is overlarge due to non-uniformity of rubber installation when the rubber ring is installed or pressed can be prevented. In addition, functional lubricating grease is coated on the contact parts of the rubber outer ring and the rubber inner ring and the rigid plate, so that the lubricating effect is achieved in the press fitting process, the functional lubricating grease and the concave-convex structure act together, the mounting position precision is improved, and the false delay phenomenon caused by local stress concentration due to uneven assembly and press fitting compression is avoided. And after drying, the adhesive effect can be achieved to a certain degree, and the sliding resistance between the rubber piece and the rigid plate can be further increased.
According to the invention, the concave-convex structure of the lotus leaf edge is arranged on the rubber ring, and compared with the arrangement of the groove on the metal piece, the processing procedures are greatly reduced, and the processing difficulty is reduced.
Drawings
FIG. 1 is an exploded view of a resilient wheel structure for a railway vehicle according to the present invention;
FIG. 2 is a view showing the structure of the bonding between the tire and the rubber outer ring;
FIG. 3 is a view showing the construction of the bonding of the wheel core to the first rubber inner ring;
FIG. 4 is a view showing the bonding structure of the press ring and the second rubber inner ring.
The tire comprises a tire 1, a tire core 2, a pressure ring 3, a rubber outer ring 4, a first rigidity plate 5, a first rubber inner ring 6, a second rigidity plate 7, a second rubber inner ring 8 and a fastener 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly. If there is a description relating to "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to imply that the number of technical features indicated is implicit. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Example 1
An elastic wheel of a railway vehicle comprises a wheel rim 1, a wheel core 2, a pressure ring 3, a rubber outer ring 4, a rubber inner ring and a rigidity plate. A rubber outer ring 4, a first rigidity plate 5 and a first rubber inner ring 6 are sequentially arranged between the hub and the wheel core 2, a rubber outer ring 4, a second rigidity plate 7 and a second rubber inner ring 8 are sequentially arranged between the wheel hoop 1 and the pressure ring 3, and the pressure ring 3 is connected with the wheel core 2 through a fastener 9.
The inner wall surface of the wheel band 1 is fixedly bonded with a rubber outer ring 4, the circumferential direction of the rubber outer ring 4 is uniformly provided with wavy concave-convex smooth transitional lotus leaf edge structures at intervals, the lotus leaf edge structures have the same size, and the radian relative to the circle center is set to be 0.42. The outer wall surface of wheel core 2 bonds and is fixed with first rubber inner ring 6, and the border of first rubber inner ring 6 is equipped with the unsmooth slick and sly lotus leaf limit structure of corresponding with one side of rubber outer ring 4, and the outer wall bonding of clamping ring 3 is fixed with second rubber inner ring 8, and it is equipped with the unsmooth slick and sly lotus leaf limit structure of corresponding with rubber outer ring 4 another side. A first stiffness plate 5 with a lotus leaf edge structure matched with the concave-convex structures of the first rubber inner ring 6 and the second rubber inner ring 8 is arranged between the rubber outer ring 4 and the second rubber inner ring 8, and a second stiffness plate 7 with a lotus leaf edge structure matched with the concave-convex structures of the first rubber inner ring and the second rubber outer ring 4 is arranged between the rubber outer ring 8 and the second rubber inner ring.
Example 2
Referring to fig. 1-4, the elastic wheel of the railway vehicle comprises a wheel band 1, a wheel core 2, a pressure ring 3, a rubber outer ring 4, a rubber inner ring and a rigidity plate. A rubber outer ring 4, a first rigidity plate 5 and a first rubber inner ring 6 are sequentially arranged between the hub and the wheel core 2, a rubber outer ring 4, a second rigidity plate 7 and a second rubber inner ring 8 are sequentially arranged between the wheel hoop 1 and the pressure ring 3, and the pressure ring 3 is connected with the wheel core 2 through a fastener 9.
The inner wall surface of the wheel band 1 is a regular conical surface, a V-shaped rubber outer ring 4 is fixedly bonded on the inner wall surface, a wavy concave-convex smooth transition lotus edge structure is arranged along the circumferential direction of the whole circle of the rubber outer ring 4, the lotus edge structure can be a lotus edge structure with the size being uniformly distributed at intervals, and the radian of the size relative to the circle center is set to be 0.42. The outer wall of the wheel core 2 is an inclined plane, a first rubber inner ring 6 is fixedly bonded on the surface of the inclined plane, a smooth lotus leaf edge structure which corresponds to one side of the rubber outer ring 4 in a concave-convex mode is arranged at the edge of the first rubber inner ring 6, a second rubber inner ring 8 is fixedly bonded on the outer wall of the pressing ring 3 in an inclined plane, and a smooth lotus leaf edge structure which corresponds to the other side of the rubber outer ring 4 in a concave-convex mode is arranged. A first stiffness plate 5 with a lotus edge structure matched with the concave-convex structures of the rubber outer ring 4 and the first rubber inner ring 6 is arranged between the rubber outer ring 4 and the first rubber inner ring 6, and a second stiffness plate 7 with a lotus edge structure matched with the concave-convex structures of the rubber outer ring 4 and the second rubber inner ring 8 is arranged between the rubber outer ring 4 and the second rubber inner ring.
Example 3
An elastic wheel of a railway vehicle comprises a wheel rim 1, a wheel core 2, a pressure ring 3, a rubber outer ring 4, a rubber inner ring and a rigidity plate. A first rubber outer ring 4, a first rigidity plate 5 and a first rubber inner ring 6 are sequentially arranged between the hub and the wheel core 2, a second rubber outer ring 4, a second rigidity plate 7 and a second rubber inner ring 8 are sequentially arranged between the wheel hoop 1 and the pressure ring 3, and the pressure ring 3 is connected with the wheel core 2 through a fastener 9.
The inner wall surface of the wheel band 1 is a regular V-shaped conical surface, a first rubber outer ring 4 and a second rubber outer ring 4 are fixedly bonded on two sides of the V-shaped conical surface respectively, a wavy concave-convex lotus edge structure in smooth transition is arranged on the edges of the first rubber outer ring 4 and the second rubber outer ring 4 respectively, and the radian of the size of the lotus edge structure relative to the circle center is set to be 0.105-1.57.
The outer wall of the wheel core 2 is an inclined plane, a first rubber inner ring 6 is fixedly bonded on the surface of the wheel core, and a smooth lotus leaf edge structure which corresponds to the first rubber outer ring 4 in a concave-convex mode is arranged on the edge of the first rubber inner ring 6. The outer wall of the pressing ring 3 is an inclined plane, a second rubber inner ring 8 is fixedly bonded on the surface of the pressing ring, and a smooth lotus leaf edge structure which corresponds to the second rubber outer ring 4 in a concave-convex mode is arranged. A first stiffness plate 5 with a lotus leaf edge structure matched with the concave-convex structures of the first rubber outer ring 4 and the first rubber inner ring 6 is arranged between the first rubber outer ring 4 and the first rubber inner ring 6, and a second stiffness plate 7 with a lotus leaf edge structure matched with the concave-convex structures of the second rubber outer ring 4 and the second rubber inner ring 8 is arranged between the second rubber outer ring 4 and the second rubber inner ring 8.
Example 4
An elastic wheel of a railway vehicle comprises a wheel rim 1, a wheel core 2, a pressure ring 3, a rubber outer ring 4, a rubber inner ring and a rigidity plate. A first rubber outer ring 4, a first rigidity plate 5 and a first rubber inner ring 6 are sequentially arranged between the hub and the wheel core 2, a second rubber outer ring 4, a second rigidity plate 7 and a second rubber inner ring 8 are sequentially arranged between the wheel hoop 1 and the pressure ring 3, and the pressure ring 3 is connected with the wheel core 2 through a fastener 9.
The inner wall surface of the wheel band 1 is a regular V-shaped conical surface, a first rubber outer ring 4 and a second rubber outer ring 4 are fixedly arranged on two sides of the V-shaped conical surface through hot vulcanization bonding, a wavy concave-convex lotus edge structure in smooth transition is arranged on the edges of the first rubber outer ring 4 and the second rubber outer ring 4 respectively, and the radian of the size of the lotus edge structure relative to the circle center is set to be 0.105-1.57.
The outer wall of the wheel core 2 is an inclined plane, a first rubber inner ring 6 is fixedly bonded, and a smooth lotus leaf edge structure which corresponds to the first rubber outer ring 4 in a concave-convex mode is arranged at the edge of the first rubber inner ring 6. The outer wall of the pressing ring 3 is an inclined plane, a second rubber inner ring 8 is fixedly bonded with the outer wall of the pressing ring, and a smooth lotus leaf edge structure which corresponds to the second rubber outer ring 4 in a concave-convex mode is arranged. A first stiffness plate 5 with a lotus edge structure matched with the concave-convex structures of the first rubber outer ring 4 and the first rubber inner ring 6 is arranged between the first rubber outer ring and the second rubber inner ring 8, a second stiffness plate 7 with a lotus edge structure matched with the concave-convex structures of the second rubber outer ring 4 and the second rubber inner ring 8 is arranged between the first rubber outer ring and the second rubber inner ring, and the surface of the first stiffness plate 5 and the surface of the second stiffness plate 7 are subjected to sand blasting treatment to increase the roughness of the contact surface.
Example 5
An elastic wheel of a railway vehicle comprises a wheel band 1, a wheel core 2, a pressure ring 3, a rubber outer ring 4, a rubber inner ring and a rigidity plate. A first rubber outer ring 4, a first rigidity plate 5 and a first rubber inner ring 6 are sequentially arranged between the hub and the wheel core 2, a second rubber outer ring 4, a second rigidity plate 7 and a second rubber inner ring 8 are sequentially arranged between the wheel hoop 1 and the pressure ring 3, and the pressure ring 3 is connected with the wheel core 2 through a fastener 9.
The inner wall surface of the wheel band 1 is a regular V-shaped conical surface, a first rubber outer ring 4 and a second rubber outer ring 4 which are formed by a plurality of rubber blocks which are evenly spaced and are surrounded in a looped mode are fixedly arranged on two sides of the V-shaped conical surface through hot vulcanization bonding, a wavy concave-convex lotus leaf edge structure in smooth transition is arranged on the edge of each rubber block, and the radian of the size of the lotus leaf edge structure relative to the circle center is set to be 0.105-1.57.
The outer wall of the wheel core 2 is an inclined plane, a plurality of rubber blocks are fixedly bonded to surround to form a first rubber inner ring 6, each rubber block of the first rubber inner ring 6 corresponds to the rubber block of the first rubber outer ring 4 in position, and concave-convex smooth lotus leaf edge structures are correspondingly matched. The outer wall of clamping ring 3 is the inclined plane to it is fixed with a plurality of rubber blocks around forming second rubber inner ring 8 to bond, and every rubber block of second rubber inner ring 8 corresponds with the position of the rubber block of second rubber outer loop 4, and unsmooth slick and sly lotus leaf limit structure corresponds the matching. A first rigid plate 5 with a lotus leaf edge structure matched with the concave-convex structures of the first rubber outer ring 4 and the first rubber inner ring 6 is arranged between the first rubber outer ring 4 and the second rubber inner ring 8, a second rigid plate 7 with a lotus leaf edge structure matched with the concave-convex structures of the second rubber outer ring 4 and the second rubber inner ring 8 is arranged between the first rubber outer ring and the second rubber inner ring, and the roughness of the contact surface of the first rigid plate 5 and the second rigid plate 7 is increased through sand blasting treatment.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An elastic wheel of a railway vehicle is characterized by comprising a wheel band, a wheel core, a pressure ring, a rubber outer ring, a rubber inner ring and a rigidity plate, wherein a first rubber outer ring, a first rigidity plate and a first rubber inner ring are sequentially arranged between the wheel band and the wheel core; the first stiffness plate and the second stiffness plate are provided with smooth transition lotus leaf edge structures, and the first rubber outer ring and the first rubber inner ring which are in contact with the first stiffness plate and the second rubber outer ring and the second rubber inner ring which are in contact with the second stiffness plate are both provided with concave-convex structures matched with the lotus leaf edge structures in shape.
2. The resilient rail vehicle wheel of claim 1, wherein the scalloped structure is circumferentially oriented and the curvature of the scallop dimension with respect to the center of the circle is set to 0.105-1.57.
3. The resilient wheel for railway vehicles as claimed in claim 1, wherein the lotus-shaped structures on the rubber outer ring, the rubber inner ring and the stiffness plate are of the same size or are distributed at regular intervals.
4. The resilient rail vehicle wheel of claim 1, wherein the scalloped structures on the first and second stiffness plates are evenly distributed throughout the entire circumference of the stiffness plates.
5. The resilient rail vehicle wheel of claim 1, wherein the scalloped edge structures on the first and second stiffness plates are evenly spaced on the stiffness plates.
6. The resilient rail vehicle wheel as claimed in claim 1, wherein the inner diameter of the wheel rim is a conical convex surface, the wheel core and the pressing ring are assembled into a conical concave surface, and the combined radial cross section is a V-shaped structure.
7. The resilient rail vehicle wheel of claim 1, wherein said means for fixedly attaching comprises heat-cured bonding.
8. The resilient rail vehicle wheel of claim 1, wherein the surfaces of the first and second rigid plates are sand blasted or sand blasted and phosphated.
9. The resilient rail vehicle wheel of claim 1, wherein the first and second rubber outer rings are of a split or unitary construction.
10. The resilient rail vehicle wheel of claim 1, wherein the outer rubber ring, the inner rubber ring and the stiffness plate are distributed in segments between the tire, the wheel core and the pressure ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211619964.5A CN115972813A (en) | 2022-12-15 | 2022-12-15 | Elastic wheel of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211619964.5A CN115972813A (en) | 2022-12-15 | 2022-12-15 | Elastic wheel of railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115972813A true CN115972813A (en) | 2023-04-18 |
Family
ID=85969259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211619964.5A Pending CN115972813A (en) | 2022-12-15 | 2022-12-15 | Elastic wheel of railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115972813A (en) |
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2022
- 2022-12-15 CN CN202211619964.5A patent/CN115972813A/en active Pending
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