CN210194346U - Rubber tie plate in high-speed railway ballastless track fastener - Google Patents
Rubber tie plate in high-speed railway ballastless track fastener Download PDFInfo
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- CN210194346U CN210194346U CN201920069891.4U CN201920069891U CN210194346U CN 210194346 U CN210194346 U CN 210194346U CN 201920069891 U CN201920069891 U CN 201920069891U CN 210194346 U CN210194346 U CN 210194346U
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- Prior art keywords
- rubber
- ballastless track
- speed railway
- groove
- track fastener
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 83
- 239000005060 rubber Substances 0.000 title claims abstract description 83
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 241001669679 Eleotris Species 0.000 claims abstract description 4
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 239000005062 Polybutadiene Substances 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 229920002857 polybutadiene Polymers 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
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Abstract
The utility model relates to a rubber tie plate among ballastless track fastener of high-speed railway belongs to ballastless track fastener technical field. The utility model discloses wholly be a flat cuboid that upper and lower surface all has the recess, length wide height dimension is
The long side of the rubber pad is in the longitudinal direction of the steel rail, namely the advancing direction of the train, the upper surface is in contact with the steel rail, and the lower surface is in contact with the sleeper. The utility model discloses improve the continuity structure of rubber backing plate, improve the continuity of rubber backing plate power transmission to improve the mechanical properties of rubber backing plate, remove and increase rubber backing plate fatigue itselfBesides the service life, the elasticity of the structure under the rail can be increased, and the mechanical property of the rail structure is improved.
Description
Technical Field
The utility model relates to a rubber tie plate among ballastless track fastener of high-speed railway belongs to ballastless track fastener technical field.
Background
The fastener is one of core technologies of a ballastless track structure of a high-speed railway, the rubber base plate under the rail is one of key parts of the fastener, but the actual service life of the rubber base plate of the fastener of the high-speed railway in China at present basically cannot reach the design service life, and the fatigue wear and aging of the rubber base plate in the fastener system are one of the outstanding and urgent problems to be solved in the maintenance of the ballastless track structure of the high-speed railway. When the train runs to cause the steel rail to suppress the rubber base plate, the rubber base plate is usually subjected to fatigue damage at the joint and the outer edge in contact with the steel rail before other parts, and the force transmission is caused by sudden change of the rubber base plate at the joint and the outer edge in contact with the steel rail, while the connection of the existing rubber base plate at the position of the sudden change of the force has a discontinuous condition, so that the rubber base plate is easily subjected to fatigue damage at the joint.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the utility model provides a rubber tie plate in a ballastless track fastener of a high-speed railway, which is used for solving the problem that the connection of the existing rubber tie plate at a force mutation position is discontinuous, so that the rubber tie plate is easy to generate fatigue damage at the connection position; the utility model discloses adopt the pitch arc to connect between the rubber tie plate straightway, improve the continuity structure of rubber tie plate, improve the continuity of rubber tie plate power transmission, improve the mechanical properties of rubber tie plate backing plate, increase rubber tie plate fatigue life, can also increase the elasticity of structure under the rail to improve track structure's mechanical properties.
The utility model adopts the technical scheme that: a rubber base plate in a high-speed railway ballastless track fastener is a flat cuboid with grooves on the upper surface and the lower surface, and the length, the width and the height of the rubber base plate are respectively
The long side of the rubber pad is in the longitudinal direction of the steel rail, namely the advancing direction of the train, the upper surface is in contact with the steel rail, and the lower surface is in contact with the sleeper.
Furthermore, a cuboid with the size of being equal to that of the cuboid is hollowed in two long sides of the length direction of the upper surface of the rubber base plate
The length and width of each plane of the hollow body are 2mmAre connected.
Further, the rubber padThe width and height radii of each plane of the plate are 2mmAre connected.
Furthermore, 7 grooves are fully distributed on the upper surface of the rubber base plate along the longitudinal direction, the distance between the outermost grooves and the longitudinal outermost edge of the rubber base plate is 30mm, the distance between the outermost grooves and the longitudinal inner edge of the hollowed body is 17mm, and the distance between the centers of the grooves is 18 mm.
Furthermore, 8 grooves are fully distributed on the lower surface of the rubber base plate along the longitudinal direction, the distance between the outermost groove and the longitudinal outermost edge of the rubber base plate is 21mm, the distance between the outermost groove and the longitudinal inner edge of the hollowed body is 8mm, and the distance between the centers of the grooves is 18 mm.
Furthermore, the section shape of the groove on the upper surface of the rubber cushion plate is formed by a trapezoid with a large upper part and a small lower part and a semicircle, the upper bottom of the trapezoid with the large upper part and the small lower part is 4.5mm wide, the lower bottom of the trapezoid with the large upper part and the small lower part is 3.5mm wide, the height of the trapezoid is 4.67mm, the radius of the semicircle is 2.33mm, and the total depth of the groove is 5.5 mm.
Further, the shape of the groove on the lower surface of the rubber base plate is the same as that of the groove on the upper surface, and the section shape of the groove on the lower surface is obtained by rotating the groove on the upper surface by 180 degrees.
Further, the rubber pad is made of chloroprene rubber, butadiene rubber or natural rubber.
Further, the rubber gasket material meets the following physical and mechanical properties: shore A hardness is 78-82; the static rigidity is 55-80 kN/mm; the tensile strength is not less than 12.5 MPa; the elongation at break is not less than 250%; the 200% fixed tensile stress is not less than 9.5 MPa; 24 hours
Compression set under the condition is not more than 25%.
The utility model has the advantages that: the utility model discloses improve the continuity structure of rubber backing plate, improve the continuity of rubber backing plate power transmission to improve the mechanical properties of rubber backing plate, except increasing the fatigue life of rubber backing plate itself, can also increase the elasticity of structure under the rail, improve track structure's mechanical properties. Meanwhile, the rubber base plate and other parts of the fastener system are designed in a detachable mode, and when the rubber base plate is worn or even damaged, the rubber base plate can be replaced under the condition that other parts of the fastener are not changed, so that the cost is reduced.
Drawings
FIG. 1 is a top view of the rubber pad of the present invention;
FIG. 2 is a cross-sectional view of the rubber pad A-A according to the present invention;
fig. 3 is a sectional view of the grooves on the upper and lower surfaces of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in figures 1-3, the rubber tie plate in the high-speed railway ballastless track fastener is a flat cuboid with grooves on the upper surface and the lower surface, and has the length, width and height dimensions of
(Long size range 167-mmWide size range of 167-mmHigh size range of 14-14.5mmAnd carrying out collocation of any values in the length, width and height size range, such as: 167mm × 167mm × 14mm, 169mm × 169mm × 14.5mm, 168mm × 168mm × 14.2 mm), the long side of the rubber pad is in the longitudinal direction of the rail, that is, the direction of travel of the train, the upper surface is the surface in contact with the rail, and the lower surface is the surface in contact with the sleeper. See fig. 1-2.
Furthermore, a cuboid with the size of being equal to that of the cuboid is hollowed in two long sides of the length direction of the upper surface of the rubber base plate
(the long dimension ranges from 113 to 114.5mmWide size range of 12.5-13.5mmHigh size range 11-11.4mmAnd carrying out collocation of any values in the length, width and height size range, such as: 113mm × 12.5mm × 11mm, 114.5 mm × 13.5mm × 11.4mm, 114mm × 13mm × 11.2 mm), and a radius for the length and width of each plane of the hollow body is 2mmAre connected. See fig. 1-2.
Further, the width and height radius of each plane of the rubber pad is 2mmAre connected. See fig. 2.
Furthermore, 7 grooves are fully distributed on the upper surface of the rubber base plate along the longitudinal direction, the distance between the outermost grooves and the longitudinal outermost edge of the rubber base plate is 30mm, the distance between the outermost grooves and the longitudinal inner edge of the hollowed body is 17mm, and the distance between the centers of the grooves is 18 mm. See fig. 1-2.
Furthermore, 8 grooves are fully distributed on the lower surface of the rubber base plate along the longitudinal direction, the distance between the outermost groove and the longitudinal outermost edge of the rubber base plate is 21mm, the distance between the outermost groove and the longitudinal inner edge of the hollowed body is 8mm, and the distance between the centers of the grooves is 18 mm. See fig. 1-2.
Furthermore, the section shape of the groove on the upper surface of the rubber cushion plate is formed by a trapezoid with a large upper part and a small lower part and a semicircle, the upper bottom of the trapezoid with the large upper part and the small lower part is 4.5mm wide, the lower bottom of the trapezoid with the large upper part and the small lower part is 3.5mm wide, the height of the trapezoid is 4.67mm, the radius of the semicircle is 2.33mm, and the total depth of the groove is 5.5 mm. See fig. 1-3.
Further, the shape of the groove on the lower surface of the rubber base plate is the same as that of the groove on the upper surface, and the section shape of the groove on the lower surface is obtained by rotating the groove on the upper surface by 180 degrees. See fig. 1-3.
Further, the rubber pad is made of chloroprene rubber, butadiene rubber or natural rubber.
Further, the rubber gasket material meets the following physical and mechanical properties: shore A hardness is 78-82; the static rigidity is 55-80 kN/mm; the tensile strength is not less than 12.5 MPa; the elongation at break is not less than 250%; the 200% fixed tensile stress is not less than 9.5 MPa; 24 hours
Compression set under the condition is not more than 25%.
The utility model relates to a rubber tie plate is through improving its boundary condition and the conduction condition of internal force with rail and the contact of structure under the rail to extension fatigue life, simultaneously, this rubber tie plate can change at any time under the condition of keeping other parts of fastener system, thereby track structure maintenance reduce cost.
The utility model discloses improve the continuity of rubber tie plate junction emphatically to reduce the probability of junction atress sudden change, reach extension fatigue life's purpose.
While the present invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a rubber tie plate in ballastless track fastener of high-speed railway which characterized in that: the rubber pad is a flat cuboid with grooves on the upper and lower surfaces and the length, width and height dimensions of
The long side of the rubber pad is in the longitudinal direction of the steel rail, namely the advancing direction of the train, the upper surface is in contact with the steel rail, and the lower surface is in contact with the sleeper.
2. The rubber tie plate in the ballastless track fastener of the high-speed railway according to claim 1, characterized in that: the upper surface of the rubber base plate is hollowed into a cuboid in two long sides in the length direction and has the size of
The length and width of each plane of the hollow body are 2mmAre connected.
3. The rubber tie plate in the ballastless track fastener of the high-speed railway according to claim 1, characterized in that: the width and height radius of each plane of the rubber base plate is 2mmAre connected.
4. The rubber tie plate of the high-speed railway ballastless track fastener according to claim 2, characterized in that: 7 grooves are longitudinally distributed on the upper surface of the rubber base plate, the distance between the outermost groove and the longitudinal outermost edge of the rubber base plate is 30mm, the distance between the outermost groove and the longitudinal inner edge of the hollowed body is 17mm, and the distance between the centers of the grooves is 18 mm.
5. The rubber tie plate of the high-speed railway ballastless track fastener according to claim 2, characterized in that: the lower surface of the rubber base plate is longitudinally distributed with 8 grooves, the distance between the outermost groove and the longitudinal outermost edge of the rubber base plate is 21mm, the distance between the outermost groove and the longitudinal inner edge of the hollowed body is 8mm, and the distance between the centers of the grooves is 18 mm.
6. The rubber tie plate in the ballastless track fastener of the high-speed railway according to claim 1, characterized in that: the section shape of the groove on the upper surface of the rubber cushion plate is formed by a trapezoid with a large upper part and a small lower part and a semicircle, the upper bottom of the trapezoid with the large upper part and the small lower part is 4.5mm wide, the lower bottom of the trapezoid with the large upper part and the small lower part is 3.5mm wide, the height of the trapezoid is 4.67mm, the radius of the semicircle is 2.33mm, and the total depth of the groove is 5.5 mm.
7. The rubber tie plate in the ballastless track fastener of the high-speed railway according to claim 6, characterized in that: the shape of the groove on the lower surface of the rubber cushion plate is the same as that of the groove on the upper surface, and the section shape of the groove on the lower surface is obtained by rotating the groove on the upper surface by 180 degrees.
8. The rubber tie plate in the ballastless track fastener of the high-speed railway according to claim 1, characterized in that: the rubber pad is made of chloroprene rubber, butadiene rubber or natural rubber.
9. The rubber tie plate in the ballastless track fastener of the high-speed railway according to claim 1, characterized in that: the rubber gasket material meets the following physical and mechanical properties: shore A hardness is 78-82; the static rigidity is 55-80 kN/mm; the tensile strength is not less than 12.5 MPa; the elongation at break is not less than 250%; the 200% fixed tensile stress is not less than 9.5 MPa; 24 hours
Compression set under the condition is not more than 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920069891.4U CN210194346U (en) | 2019-01-16 | 2019-01-16 | Rubber tie plate in high-speed railway ballastless track fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920069891.4U CN210194346U (en) | 2019-01-16 | 2019-01-16 | Rubber tie plate in high-speed railway ballastless track fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210194346U true CN210194346U (en) | 2020-03-27 |
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ID=69880412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920069891.4U Expired - Fee Related CN210194346U (en) | 2019-01-16 | 2019-01-16 | Rubber tie plate in high-speed railway ballastless track fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210194346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680565A (en) * | 2019-01-16 | 2019-04-26 | 昆明理工大学 | A kind of rubber mat plate in ballastless track of high-speed railway fastener |
-
2019
- 2019-01-16 CN CN201920069891.4U patent/CN210194346U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680565A (en) * | 2019-01-16 | 2019-04-26 | 昆明理工大学 | A kind of rubber mat plate in ballastless track of high-speed railway fastener |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200327 Termination date: 20210116 |