CN215561556U - Plate end vibration isolation device with side shear hinges - Google Patents
Plate end vibration isolation device with side shear hinges Download PDFInfo
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- CN215561556U CN215561556U CN202121528469.4U CN202121528469U CN215561556U CN 215561556 U CN215561556 U CN 215561556U CN 202121528469 U CN202121528469 U CN 202121528469U CN 215561556 U CN215561556 U CN 215561556U
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Abstract
The utility model belongs to the field of vibration control, and discloses a vibration isolation device of a railway floating track bed, in particular to a plate end vibration isolation device with a side-mounted shear hinge for supporting a floating plate in the floating track bed. The plate end vibration isolation device with the side shear hinges has the advantages of simple and compact structure, good practicability, long service life, high cost performance and the like, can be widely applied to a floating slab track bed vibration isolation system in the field of rail transit such as subways, urban railways, overhead light rails and the like, and has very wide market application prospect.
Description
Technical Field
The utility model belongs to the field of vibration control, and relates to a vibration isolation device for a railway floating track bed, in particular to a plate end vibration isolation device for supporting a floating plate in the floating track bed.
Background
Along with social development and technological progress, urban rail transit development is more and more emphasized in large and medium cities, and urban rail construction, particularly underground railway construction, is also developed successively. In order to reduce the interference to the upper part of the track or peripheral property and residents, the arrangement of the floating slab track bed in a special section is an important vibration isolation measure in the subway design. Compared with the traditional cast-in-place long floating slab track bed vibration isolation system, the prefabricated floating slab track bed vibration isolation system technology gradually becomes a new technology widely adopted in the industry at present due to the high construction speed and the easier quality guarantee.
The prefabricated floating slab track bed vibration isolation system adopts short floating slabs with the length of 3-8m, and in order to prevent the seesaw effect, the technical measure which is commonly adopted at present is to arrange a slab end vibration isolation device which is shared by two prefabricated floating slabs below the end parts of the adjacent prefabricated floating slabs, so that the local bearing capacity is improved; in addition, an overhead shear hinge is additionally arranged between adjacent short floating plates, so that the shear force is transferred in the running process of the vehicle, and the structural integrity of the ballast bed is improved. However, in practice, it is found that the overhead shear hinge still needs to bear a large bending moment in the process of transferring the shear force, and the stress condition is severe, so that the situation that a connecting bolt is broken or even a shear resistant core rod is broken occurs in a part of lines, and potential safety hazards are brought to driving safety.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides a plate end vibration isolation device with a side shear hinge, which is more reasonable in stress condition and higher in safety.
The plate end vibration isolation device with the side-mounted shear hinge is realized by the following steps that the plate end vibration isolation device comprises an upper shell and an elastic element, wherein a side-mounted shear hinge structure is arranged on the upper shell, the side-mounted shear hinge structure comprises a shear force transmission piece, the shear force transmission piece is fixedly arranged on the upper shell, and an assembly connecting hole for connecting and fixing the shear force transmission piece and a floating plate is formed in the shear force transmission piece.
In addition, the plate end vibration isolation device with the side-mounted shear hinge can further comprise a lower shell and a damping element, wherein the elastic element and the damping element are arranged between the upper shell and the lower shell.
The side-mounted shear hinge structure can further comprise a support, the support is fixedly arranged on the upper shell, and the shear force transmission piece is fixedly arranged on the support.
In order to facilitate the adjustment of the position of the shear force transmission member, a height adjustment mechanism can be arranged between the shear force transmission member and the bracket. The height adjusting mechanism comprises a position height adjusting hole and a positioning threaded piece. Wherein, the position height adjusting hole comprises a threaded hole or a strip hole arranged vertically and the like.
Further, it is preferable that the fitting attachment hole provided in the shear force transmission member is a long hole arranged in the lateral direction.
It is to be noted that the transverse and longitudinal directions in the present invention are referred to the transverse and longitudinal directions of the track, respectively.
The utility model relates to a plate-end vibration isolation device with a side-mounted shear hinge, which adopts a side-mounted shear hinge structure and integrates the side-mounted shear hinge structure on the plate-end vibration isolation device. Compared with the prior art, the plate end vibration isolation device with the side-mounted shear hinges has a more compact structure, integrates an elastic vibration isolation function and a shear force transmission function, has a simpler structure and stronger practicability, and particularly, the shear force transmission piece can be used as a transverse limiting element at the same time, so that the related elements of the system are fewer, the structure is simplified, the material is saved, the product cost is reduced, and the transportation and the installation are convenient; in addition, because of the adoption of the side-mounted shear hinge structure, the space above the floating slab is not occupied, the space utilization rate is higher, and the stress condition of the floating slab and the stress of the shear force transmission piece are more reasonable in the working process of the floating track bed structure formed by the utility model, thereby being beneficial to prolonging the service lives of the floating slab and the shear force transmission piece.
In summary, the plate end vibration isolation device with the side shear hinges has the advantages of simple and compact structure, good practicability, long service life, high cost performance and the like, can be widely applied to a floating plate track bed vibration isolation system in the field of rail traffic such as subways, urban railways, overhead light rails and the like, and has very wide market application prospect.
Drawings
Fig. 1 is a schematic structural view of a plate end vibration isolation device with a side shear hinge according to the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a partial view taken along the line a in fig. 1.
Fig. 4 is a schematic view of the application of the plate end vibration isolation device with the side shear hinges of fig. 1.
Fig. 5 is an enlarged view of a portion B of fig. 4.
Fig. 6 is a second schematic structural view of the plate end vibration isolation device with side shear hinges according to the present invention.
Fig. 7 is a top view of fig. 6.
Fig. 8 is a partial view taken along line C of fig. 6.
Fig. 9 is a schematic view of the application of the plate end vibration isolation mounting with side shear hinges of the present invention shown in fig. 6.
Fig. 10 is an enlarged view of a portion D of fig. 9.
Fig. 11 is a third schematic structural view of the plate end vibration isolation device with side shear hinges according to the present invention.
Fig. 12 is a partial view taken along line E of fig. 11.
FIG. 13 is a fourth schematic view of the structure of the plate end vibration isolation device with side shear hinges of the present invention.
Detailed Description
Example one
Referring to fig. 1, 2 and 3, the plate end vibration isolation device with a side shear hinge of the present invention comprises an upper housing 1T
When in use, as shown in fig. 4 and 5, the plate-end vibration isolation device with the side-mounted shear hinges is arranged below the end parts of the adjacent floating plates 9, supports the two adjacent floating plates 9, and is matched with the assembling connecting holes 7 arranged on the shear force transmission piece 6 by using the fastening bolts 22, so that the two sides of the shear force transmission piece 6 are respectively and fixedly connected to the longitudinal side surfaces 14 of the two adjacent floating plates 9, and the track structure 12 is arranged on the top surfaces of the floating plates 9. In addition, it should be noted that a certain margin is reserved for the size of the assembly connecting hole 7 relative to the fastening bolt 22 to adapt to the relative position change generated when the floating plate expands with heat and contracts with cold, an elastic pad 15 is arranged between the shear force transmission member 6 and the end longitudinal side 14 of the floating plate 9, an elastic pad 15 is also arranged between the longitudinal limiting plate 5 and the end transverse side 13 of the floating plate 9, and by using the elastic pad 15, on one hand, collision damage and noise generated by direct contact between the floating plate and the plate end vibration isolation device with the side-mounted shear hinge in the use process can be prevented, on the other hand, the gap change generated by expansion with heat and contraction with cold of the floating plate can be absorbed and compensated by using the compression and release of the elastic pad, and meanwhile, foreign matters can be prevented from falling in. In particular, in order to facilitate adjustment of the height of the rail and assembly of the shear force transmission member and the floating plate, a height-adjusting base plate may be additionally disposed between the plate-end vibration isolation device with the side-mounted shear hinge of the present invention and the foundation or between the plate-end vibration isolation device with the side-mounted shear hinge of the present invention and the floating plate.
The utility model relates to a plate-end vibration isolation device with a side-mounted shear hinge, which adopts a side-mounted shear hinge structure and integrates the side-mounted shear hinge structure on the plate-end vibration isolation device. Compared with the prior art, the plate end vibration isolation device with the side-mounted shear hinges has a more compact structure, integrates an elastic vibration isolation function and a shear force transmission function, has a simpler structure and stronger practicability, and particularly, the shear force transmission piece can be used as a transverse limiting element at the same time, so that the related elements of the system are fewer, the structure is simplified, the material is saved, the product cost is reduced, and the transportation and the installation are convenient; in addition, because a side shear hinge structure is adopted, the space above the floating plate is not occupied, and the space utilization rate is higher; in addition, in the application process, the connection matching position of the shear force transmission piece and the floating plate is located in the vertical middle of the plate body of the floating plate, and the stress position is relatively low, so that in the working process, the stress condition of the floating plate is more reasonable, the stress of the shear force transmission piece is more reasonable, and the improvement on the service life of the floating plate and the service life of the shear force transmission piece are facilitated.
In summary, the plate end vibration isolation device with the side shear hinges has the advantages of simple and compact structure, good practicability, long service life, high cost performance and the like, can be widely applied to a floating plate track bed vibration isolation system in the field of rail traffic such as subways, urban railways, overhead light rails and the like, and has very wide market application prospect.
It should be noted that in this embodiment, the elastic rubber block is used as the elastic element, and since the elastic rubber block has good damping performance, it can also be used as the damping element. Based on the technical principle of the present invention, other types of elastic elements can be used, for example, a spiral steel spring can also be used as the elastic element, and of course, if the spiral steel spring is used as the elastic element in the plate-end vibration isolation device with the side-mounted shear hinge of the present invention, since the spiral steel spring cannot provide sufficient damping for the track bed system, damping structures can be added at other positions of the track bed system to be used in cooperation with the present invention, which are simple changes based on the technical principle of the present invention, and similar technical effects can also be achieved, and the description is given only by words herein, and no additional drawings are included in the protection scope required by the present invention.
Example two
As shown in fig. 6, 7 and 8, the plate-end vibration isolation device with a side-mounted shear hinge of the present invention is different from the first embodiment in that the elastic element 3 specifically adopts a coil steel spring, and further includes a lower housing 2 and a damping element 4, the elastic element 3 and the damping element 4 are disposed between the upper housing 1 and the lower housing 2, and the upper housing 1 is fixedly provided with a longitudinal limit plate 5; in addition, the upper shell 1 comprises a dedicated transverse limit plate 19; in addition, the side-mounted shear hinge structure further comprises a support 18, the support 18 is fixedly arranged on the upper shell 1, specifically, the lower part of the support 18 is welded with a transverse limiting plate 19 into a whole, and the shear force transmission piece 6 is fixedly arranged on the upper part of the support 18 in a welding manner; the fitting connection holes 7 provided in the shear force transmission member 6 are elongated holes arranged in the transverse direction.
In application, as shown in fig. 9 and 10, the difference from the application method described in the first embodiment is that the lower shell 2 is fixed on a foundation (not specifically shown in the drawings) by using the anchor bolts 11, so that the plate-end vibration isolation device with the side-mounted shear hinges of the present invention is more stable and reliable in limiting. In addition, compared with the first embodiment, the technical solution of the present example has the following advantages: 1) because the damping element is additionally arranged between the upper shell and the lower shell, the damping element does not need to be additionally arranged in the ballast bed system, and the structure of the ballast bed system is favorably simplified; 2) because the bracket 18 is additionally arranged in the side-mounted shear hinge structure, the size of the shear force transmission piece is favorably optimized, the material is saved, and the product cost is reduced; the assembly connecting hole 7 arranged on the shear force transmission piece 6 is a long hole arranged along the transverse direction, so that the size change generated when the floating plate expands with heat and contracts with cold can be better adapted.
EXAMPLE III
As shown in fig. 11 and 12, the plate-end vibration isolation device with a side-mounted shear hinge of the present invention is different from the second embodiment in that the damping element includes a damping cylinder 16 disposed on the lower housing 2, a viscous damping fluid 17 is disposed in the damping cylinder 16, the damping cylinder and the corresponding lower housing portion thereof together enclose a damping cylinder, the damping cylinder and the viscous damping fluid together form a viscous damper as the damping element, and the lower portion of the elastic element 3 is immersed in the viscous damping fluid 17; in addition, a transverse limiting plate on the upper shell is eliminated, and the shear force transmission piece 6 is used as a transverse limiting element at the same time; in addition, a height adjusting mechanism is arranged between the shear force transmission piece 6 and the support 18, the height adjusting mechanism comprises a positioning threaded piece 20 and a position height adjusting hole 21 arranged on the upright post 18, and the position height adjusting hole 21 is a strip hole arranged vertically.
Compared with the embodiment, the technical scheme of the embodiment has the advantages that: 1) the damping element adopts a viscous damper, so that the service life is long, the cost is low, and the maintenance is convenient; 2) in the technical scheme of the embodiment, a transverse limiting plate is not specially arranged, and the shear force transmission piece 6 is used as the transverse limiting plate at the same time, so that the use amount of materials is favorably reduced, particularly, the size of the longitudinal limiting plate 5 is optimized, the investment of the materials is favorably and effectively reduced, the product structure is favorably simplified, and the cost is reduced; in addition, because the height adjusting mechanism is additionally arranged between the shear force transmission piece and the support, the shear force transmission piece is easier to operate when being assembled and connected with the floating plate, and the position of the shear force transmission piece relative to the floating plate can be adjusted by utilizing the position height adjusting hole, so that the device is very convenient.
Of course, based on the technical principle described in this example, the specific form of the height adjustment mechanism may be various, for example, as shown in fig. 13, the height adjustment mechanism includes a positioning threaded member 20 and a position height adjustment hole 21, the position height adjustment hole 21 is specifically a plurality of threaded holes vertically arranged on the shear force transmission member 6, and the height position adjustment of the shear force transmission member 6 can be realized by matching the positioning threaded member 20 with the threaded holes of different heights. Certainly, the precision of the height adjustment is limited, and in practical application, the height adjustment mechanism can be used together with the height adjustment base plate to adjust the height position of the shear force transmission member 6, for example, the height adjustment mechanism is used to realize coarse adjustment, and the height adjustment base plate is used to complete final accurate height position adjustment of the shear force transmission member 6, so that good technical effects can be achieved, and the utility model is within the protection scope of the utility model.
It should be noted that, since it is a conventional technical means in the industry to adjust the height of the track by using the height-adjusting base plate and the vibration isolation device in cooperation, the height-adjusting base plate is not specifically shown in the drawings in the application description of the present invention, and the description is given only by words.
The embodiments of the present invention are only for better illustrating the technical solutions of the present invention, and should not be considered as limiting the present invention, wherein technical features in many embodiments can also be used in a cross-connection, and based on the technical principles of the present invention, a person skilled in the art can recombine the technical solutions described in the above embodiments or simply replace some elements in the same technology, and so on, the technical principles of the present invention are within the protection scope of the present invention.
Claims (7)
1. The plate end vibration isolation device with the side-mounted shear hinges comprises an upper shell and an elastic element and is characterized in that the upper shell is provided with the side-mounted shear hinge structure, the side-mounted shear hinge structure comprises a shear force transmission piece, the shear force transmission piece is fixedly arranged on the upper shell, and the shear force transmission piece is provided with an assembly connecting hole for being fixedly connected with a floating plate.
2. The board end vibration isolation apparatus with a side shear hinge of claim 1, further comprising a lower housing and a damping member, the elastic member and the damping member being disposed between the upper housing and the lower housing.
3. The plate end vibration isolation apparatus with a side shear hinge of claim 1, wherein the side shear hinge structure further comprises a bracket fixedly disposed on the upper housing, and the shear force transmitter is fixedly disposed on the bracket.
4. The plate end vibration isolation apparatus with a side shear hinge of claim 3, wherein a height adjustment mechanism is provided between the shear force transmitter and the bracket.
5. The plate end vibration isolation apparatus with side shear hinge of claim 4, wherein said height adjustment mechanism comprises a position height adjustment hole and a positioning screw.
6. The plate end vibration isolation mounting with side shear hinges of claim 5, wherein said position height adjustment holes comprise threaded holes or vertically arranged elongated holes.
7. The plate end vibration isolation apparatus with a side shear hinge according to claim 1, wherein the fitting attachment holes provided in the shear force transmission member are elongated holes arranged in the lateral direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121528469.4U CN215561556U (en) | 2021-07-06 | 2021-07-06 | Plate end vibration isolation device with side shear hinges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121528469.4U CN215561556U (en) | 2021-07-06 | 2021-07-06 | Plate end vibration isolation device with side shear hinges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215561556U true CN215561556U (en) | 2022-01-18 |
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ID=79823843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121528469.4U Active CN215561556U (en) | 2021-07-06 | 2021-07-06 | Plate end vibration isolation device with side shear hinges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215561556U (en) |
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2021
- 2021-07-06 CN CN202121528469.4U patent/CN215561556U/en active Active
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