CN214245134U - Floating track bed with centrally-mounted shear hinges - Google Patents
Floating track bed with centrally-mounted shear hinges Download PDFInfo
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- CN214245134U CN214245134U CN202023280125.4U CN202023280125U CN214245134U CN 214245134 U CN214245134 U CN 214245134U CN 202023280125 U CN202023280125 U CN 202023280125U CN 214245134 U CN214245134 U CN 214245134U
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Abstract
The utility model belongs to railway ballast bed field discloses a floating ballast bed with put formula shear force hinge in, it includes floating slab and elastic vibration isolation device, link to each other through put formula shear force hinge in between the adjacent floating slab, put formula shear force hinge in including at least part be platelike load spare that shears, the stop device that sets up on the corresponding assembly tank that sets up of floating slab end and the floating slab, the assembly tank sets up at the thick orientation middle part of floating slab end and open the setting with outside intercommunication at floating slab end, the platelike part of the load spare that shears inlays respectively to establish in the assembly tank that corresponds the setting on adjacent floating slab, connect adjacent floating slab, utilize stop device to lock the load spare that shears at the assembly tank. The utility model discloses the efficiency of construction is high, and well formula shear force hinge later maintenance is convenient, and the floating slab atress in the floating track bed structure is more reasonable, and life is longer, can wide application in various track traffic forms such as subway, urban railway, overhead light rail, high-speed railway.
Description
Technical Field
The utility model belongs to railway ballast bed especially relates to a track structure of railway, specifically can be ballast beds such as railway, subway, urban railway, overhead light rail, high-speed railway.
Background
Along with social development and technological progress, the importance of rail transit is increasingly highlighted. The problems of vibration and noise generated during the operation of vehicles must be solved in the construction of rail transit, otherwise, the quality of life of surrounding residents is seriously influenced, the safety of surrounding buildings is endangered, and meanwhile, the stability, the safety and the service life of the rail transit are also influenced.
A large number of engineering practices in the field of rail transit prove that the floating slab track bed technology is one of the most effective track vibration and noise reduction technologies in the prior art, and particularly in subways and urban light rails, the technology is widely applied. In the existing floating track bed structure, the shear hinges are important components of the structure for transferring shear force between adjacent floating slabs, and can share the shear force borne by the steel rail at the slab joint crossing position, so that the slabs are coordinately deformed. At present, the floating slab shear hinge used in large quantity at home and abroad is divided into a central type and an overhead type. The existing middle-mounted shear hinge comprises a shear resistant core rod and a guide contact sleeve, when the middle-mounted shear hinge is used, the middle-mounted shear hinge is located in the center of the section of a plate, the shear resistant core rod and the guide contact sleeve are respectively fixed in adjacent floating plates, and one end of the shear resistant core rod is inserted into the guide contact sleeve. The shear hinge is low in cost, the shear hinge and the steel bar framework of the floating slab are bound together during construction, the shear hinge and the floating slab are fixedly connected into a whole after concrete is poured, the stress is reasonable, and a fixing structure is not required to be additionally arranged. However, such shear hinges cannot be replaced after concrete pouring, and the working state, damage and corrosion of the material of the floating slab cannot be observed from the upper part of the floating slab after the line is operated, so that the maintenance and replacement are very difficult. Although the overhead shear hinge can be installed on the surface of the floating slab, is convenient to construct and easy to adjust and replace, the overhead shear hinge is complex in structure and high in cost due to the fact that a fixing device is required to be specially arranged, and in addition, the concrete structure of the relevant connecting part of the floating slab is easy to damage in the using process.
In summary, there is an urgent need in the market for a new floating slab track bed that not only can be reliably connected to adjacent floating slabs, smoothly transmit shear forces and improve the stress of the floating slab, but also is easy to maintain and replace shear components.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve above-mentioned problem, provide a shear hinge structure that has adopted the put in and wherein shear member is easy to maintain the floating track bed that is equipped with put in shear hinge of changing.
The utility model discloses a floating track bed with put formula shear force hinge in wherein realizes like this, including floating slab and elastic vibration isolation device, floating slab is by elastic vibration isolation device elastic support, links to each other through put formula shear force hinge in wherein between the adjacent floating slab, put formula shear force hinge in wherein includes that at least part is platelike shear force bearing member, the floating slab tip corresponds the assembly groove that sets up and the stop device that sets up on the floating slab, the assembly groove sets up in the thick direction middle part of floating slab board end and communicates open setting with the outside in floating slab terminal surface department, and the platelike part of shear force bearing member inlays respectively in the assembly groove that corresponds the setting on the adjacent floating slab, connects adjacent floating slab, utilizes stop device to lock shear force bearing member in the assembly groove; the end part of the floating plate is provided with a yielding opening for installing the shear-resistant bearing piece, and the side surface of the yielding opening is communicated with the outside and is opened.
The number and the positions of the abdicating notches on the floating plate can be designed according to the needs, for example, the abdicating notch at the end part of the floating plate can be arranged one, and the abdicating notch is specifically positioned in the middle of the plate end of the floating plate; the two abdicating notches can also be arranged on two sides of the plate end of the floating plate, and the like. In addition, in order to prevent the plate body structure of the floating plate from being accidentally damaged due to the fact that the assembly groove and the shear-resistant bearing member are in direct contact and collision with each other in the assembly process or the use process, a frame can be arranged on the side wall of the assembly groove, and the frame and the floating plate are poured into a whole in advance.
The utility model discloses stop device in the floating track bed with put formula shear force hinge in can be various, for example, stop device includes spacing hole and the spacing post that corresponds the assembly groove setting on the floating slab body, utilizes spacing post and spacing hole cooperation to lock the bearing spare that shears in the assembly groove, of course, in practical application, can also correspond stop device on the bearing spare that shears and set up the through-hole of stepping down, spacing post inserts and sets up in spacing hole and stepping down the through-hole, locks the bearing spare that shears in the assembly groove; in addition, stop device also can include the anchor connecting piece that abdicating the opening on the floating plate and correspond the assembly groove setting. When the structure is used specifically, for example, a detachable limit pin shaft or a limit stop is arranged on the anchoring connecting piece corresponding to the assembly groove, and the limit pin shaft or the limit stop is connected with the anchoring connecting piece in a matching way so as to lock the shear-resistant bearing piece in the assembly groove; or the shear-resistant bearing part comprises a shear-resistant core plate and a connecting plate, the connecting plate is fixedly arranged at one end of the shear-resistant core plate, and the connecting plate is connected with the anchoring connecting piece in a matched manner through the fastener so as to lock the shear-resistant bearing part in the assembling groove. In practice, the anchoring connectors may also be integrated with the frame, thus reducing the number of components and improving the integrity of the system.
Compared with the prior art, the utility model discloses floating track bed with put formula shear force hinge in has following advantage:
(1) the shear-resistant bearing piece is arranged in the middle of the end of the floating slab, so that reliable connection between the shear-resistant bearing piece and an adjacent floating slab can be conveniently realized, the shear force can be smoothly transmitted, the stress of the floating slab body during working can be effectively improved, and the service life of the floating slab can be prolonged;
(2) the shear-resistant bearing piece can be conveniently installed in the assembly groove or taken out of the assembly groove through the abdication opening on the floating plate, so that the maintenance and replacement operation of the shear-resistant bearing piece is very quick and convenient, and the industrial problem that a middle-mounted shear hinge in the traditional technology cannot be replaced is solved;
(3) the utility model discloses an among the put formula shear force hinge in, utilize the platelike part in the load spare that shears to cooperate as effectual shear element and assembly groove transmission shear force between adjacent floating slab, compare with the cylindrical plug that shears that put formula shear force hinge adopted in the tradition, this platelike part's thickness size is very little, consequently corresponding assembly groove occupies that the space of floating slab inside is also very little, do not influence the vertical or horizontal arrangement muscle of floating slab basically, influence to floating slab plate body intensity is very little, be favorable to improving the life of floating slab.
To sum up, the utility model discloses be equipped with the floating track bed of well put formula shear force hinge, the efficiency of construction is high, and well put formula shear force hinge later maintenance is convenient, and the board atress that floats in the floating track bed structure is more reasonable, and life is longer, can wide application in various track traffic forms such as subway, urban railway, overhead light rail, high-speed railway.
Drawings
Fig. 1 is one of the schematic structural diagrams of the floating track bed with the central shear hinge of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a second schematic structural view of the floating track bed with a central shear hinge according to the present invention.
Fig. 4 is a third schematic view of the floating track bed with a central shear hinge according to the present invention.
Fig. 5 is a sectional view taken along line D-D of fig. 4.
Fig. 6 is a fourth schematic view of the floating track bed with a centrally-mounted shear hinge according to the present invention.
Fig. 7 is a fifth schematic view of the floating track bed with a centrally-mounted shear hinge according to the present invention.
Detailed Description
Example one
The floating track bed with the middle-positioned shear hinges of the utility model shown in fig. 1 and fig. 2 comprises a floating slab 1 and an elastic vibration isolation device 2, wherein the elastic vibration isolation device 2 adopts a built-in structural arrangement in the floating track bed, the floating slab 1 is elastically supported by the elastic vibration isolation device 2 and is separated from the surface of a foundation 7, adjacent floating slabs 1 are connected through the middle-positioned shear hinges, a track structure 8 is arranged on the floating slab 1, the middle-positioned shear hinges comprise a slab-shaped shear force bearing member 3, an assembly groove 4 correspondingly arranged at the end part of the floating slab 1 and a limiting device arranged on the floating slab 1, the assembly groove 4 is arranged in the middle part of the slab end of the floating slab 1 and is communicated with the outside at the end surface B of the floating slab and is opened, the shear force bearing members 3 are respectively embedded in the assembly grooves 4 correspondingly arranged on the adjacent floating slabs 1, the adjacent floating slabs 1 are connected, the shear force bearing member 3 is locked in the assembly groove 4 by the limiting device, the limiting device comprises a limiting hole 6 and a limiting column 5 which are arranged on the plate body of the floating plate 1 corresponding to the assembling groove 4, and the shearing-resistant bearing part 3 is locked in the assembling groove 4 by matching the limiting column 5 with the limiting hole 6; the middle of the end part of the floating plate 1 is provided with a yielding notch 9 for installing a shear-resistant bearing piece, and the assembly groove 4 is communicated with the outside at the side C of the yielding notch 9 and is arranged in an open mode.
During application, the floating plates are heightened and leveled, then the shear-resistant bearing piece 3 is inserted into the assembly groove from the opening of the assembly groove 4 at the side C through the space provided by the yielding notch of the adjacent floating plates, then the limiting column 5 is inserted into the floating plate 1 along the limiting hole 6 from the upper side, and the shear-resistant bearing piece 3 is locked in the assembly groove 4 by matching the limiting column 5 and the limiting hole 6, so that the adjacent floating plates 1 are connected by the shear-resistant bearing piece 3, and during operation, the function of transferring shear force between the adjacent floating plates 1 can be smoothly realized in the process that a rail vehicle passes through.
Compared with the prior art, the utility model discloses floating track bed with put formula shear force hinge in has following advantage:
(1) the shear-resistant bearing piece is arranged in the middle of the end of the floating slab, so that reliable connection between the shear-resistant bearing piece and an adjacent floating slab can be conveniently realized, the shear force can be smoothly transmitted, the stress of the floating slab body during working can be effectively improved, and the service life of the floating slab can be prolonged;
(2) the shear-resistant bearing piece can be conveniently installed in the assembly groove or taken out of the assembly groove through the abdication opening on the floating plate, so that the maintenance and replacement operation of the shear-resistant bearing piece is very quick and convenient, and the industrial problem that a middle-mounted shear hinge in the traditional technology cannot be replaced is solved;
(3) the utility model discloses an among the put formula shear force hinge in, utilize the platelike part in the load spare that shears to cooperate as effectual shear element and assembly groove transmission shear force between adjacent floating slab, compare with the cylindrical plug that shears that put formula shear force hinge adopted in the tradition, this platelike part's thickness size is very little, consequently corresponding assembly groove occupies that the space of floating slab inside is also very little, do not influence the vertical or horizontal arrangement muscle of floating slab basically, influence to floating slab plate body intensity is very little, be favorable to improving the life of floating slab.
To sum up, the utility model discloses be equipped with the floating track bed of well put formula shear force hinge, the efficiency of construction is high, and well put formula shear force hinge later maintenance is convenient, and the board atress that floats in the floating track bed structure is more reasonable, and life is longer, can wide application in various track traffic forms such as subway, urban railway, overhead light rail, high-speed railway.
It should be noted that, based on the technical principle described in fig. 2, as shown in fig. 3, in practical application, a yielding through hole may be further formed in the shear-resistant bearing member 3 corresponding to the limiting device, and the limiting post 5 is inserted into the limiting hole 6 and the yielding through hole to lock the shear-resistant bearing member 3 in the assembly groove 4, so that a good limiting effect is achieved, and the space of the assembly groove 4 can be more effectively utilized; in addition, spacing hole 6 also can run through the setting of the board body of floating plate 1, also can realize same technological effect, these are all based on the utility model discloses simple change of technical principle no longer the drawing description one by one, also be in the utility model discloses within the required protection scope.
Example two
As shown in fig. 4 and 5, the floating track bed of the present invention with a central shear hinge is different from the technical solutions shown in fig. 1 and 2 in that the elastic vibration isolation device 2 adopts a side-mounted structure arrangement in the floating track bed; in addition, two abdicating notches 9 are arranged and are respectively positioned at two sides of the end part of the plate body of the floating plate 1; in addition, the side wall of the assembly groove 4 is provided with a frame 16, and the frame 16 is formed by welding steel plates and is cast with the floating plate 1 into a whole in advance; fourthly, the limiting device comprises an anchor connecting piece 12, the yielding opening 9 on the floating plate 1 corresponds to the assembly groove 4, a detachable limiting stop 11 is arranged on the anchor connecting piece 12 corresponding to the assembly groove 4, and the limiting stop 11 is matched and connected with the anchor connecting piece 12 through a fastener 13 so as to lock the shear-resistant bearing piece 3 in the assembly groove 4.
Compared with the first embodiment, in the technical scheme of the embodiment, because the frame 16 is additionally arranged on the side wall of the assembly groove 4, the accidental damage of the floating plate body structure caused by the mutual direct contact and collision of the assembly groove and the shear-resistant bearing part in the assembly process or the use process can be effectively prevented, the service life of the floating plate can be prolonged, and the frame can be made of stainless steel, engineering plastics and other materials besides the steel plate, and can be selected according to engineering requirements in practical application. In addition, the limiting device adopts the matching connection of the limiting stop 11 and the anchoring connecting piece 12 through the fastener 13 so as to lock the shear-resistant bearing piece 3 in the assembly groove 4, the structure does not need to arrange a limiting hole on the floating plate body, does not damage the floating plate, is simpler and more convenient in operation in the process of processing, manufacturing, installing and maintaining the shear-resistant bearing piece, and is beneficial to improving the operation efficiency; of course, based on this kind of technical principle, as shown in fig. 6, can also correspond on anchor connecting piece 12 and assemble groove 4 and set up the spacing round pin axle 14 that can disassemble and assemble, it is concrete, spacing round pin axle 14 specifically is a long bolt, also can effectively shelter from the opening of assembly groove 4 in side C department, realizes the dress and shears the technical effect that load member 3 locks in assembly groove 4, based on the technical principle that fig. 6 recorded, spacing round pin axle also can adopt other structures, for example split pin etc. also can both realize fine spacing effect, all is based on the utility model discloses technical principle's simple change only gives the explanation here with the characters, all is in among the required protection range the utility model discloses.
EXAMPLE III
As shown in fig. 7, the floating track bed of the present invention with a central shear hinge is different from the technical solutions shown in fig. 4 and 5 in that the anchoring connector 12 is integrated with the frame 16; in addition, the shear strength member comprises a shear core plate 17 and a connecting plate 15, the connecting plate 15 is fixedly welded at one end of the shear core plate 17, and the connecting plate 15 is matched and connected with the anchor connecting piece 12 through the fastener 13 so as to lock the shear strength member in the assembly groove 4.
Compared with the embodiment, in the technical scheme of the embodiment, the anchoring connecting piece 12 and the frame 16 are integrally arranged, and the shear core plate 17 and the connecting plate 15 are integrally arranged, so that the number of parts related to the system is less, the integrity is better, and the application is more convenient. It should be noted that the size of the through hole in the connecting plate 15 for the fastener 13 is preferably significantly larger than the diameter of the fastener 13, so that the fastener 13 is effectively prevented from bearing shear forces between the floating plates when the connecting plate 15 is assembled with the anchor connector 12. In addition, it should be noted that, anti-shear core board 17 adopts platelike structure as shear-resistant component to use in the bearing member that shears, and connecting plate 15 exists as connecting auxiliary component, and it need not necessarily adopt platelike structure, for example can also be cyclic annular isotructure form, also can all be applied to the utility model discloses in, can select for use according to the engineering needs design when practical application.
The embodiment of the present invention is only for better explaining the technical solution of the present invention, and should not be considered as right the present invention discloses a restriction, wherein the technical features in many embodiments can also be used alternately, based on the present invention discloses technical principle, technical personnel in the field can be to the above-mentioned embodiment technical scheme makes up again or utilizes the technology of the same kind to simply replace some of them components, as long as based on the present invention discloses a technical principle, all in the protection scope that the present invention requires.
Claims (10)
1. A floating track bed with a middle-arranged shear hinge comprises floating plates and an elastic vibration isolation device, wherein the floating plates are elastically supported by the elastic vibration isolation device, and adjacent floating plates are connected through the middle-arranged shear hinge; the end part of the floating plate is provided with a yielding opening for installing the shear-resistant bearing piece, and the side surface of the yielding opening is communicated with the outside and is opened.
2. The floating track bed with a centrally located shear hinge of claim 1, wherein the side walls of the assembly slots are provided with rims that are pre-cast with the floating slabs.
3. The floating track bed with a centrally located shear hinge of claim 1 wherein one of the relief notches is located intermediate the ends of the floating slab.
4. The floating track bed with a centrally located shear hinge of claim 1, wherein there are two of the relief notches located on either side of the floating slab end.
5. The floating track bed with the centrally-mounted shear hinge as claimed in any one of claims 1 to 4, wherein the limiting device comprises a limiting hole and a limiting column which are correspondingly arranged on the floating slab body and correspond to the assembling groove.
6. The floating track bed with the centrally-mounted shear hinge as claimed in claim 5, wherein the shear-resistant bearing member is provided with a step-down through hole corresponding to the limiting device, and the limiting post is inserted into the limiting hole and the step-down through hole to lock the shear-resistant bearing member in the assembling groove.
7. The floating track bed with the centrally mounted shear hinge as claimed in any one of claims 1 to 4, wherein the limiting means comprises an anchor connector at a relief notch in the floating slab corresponding to the mounting groove.
8. The floating track bed with a centrally-mounted shear hinge as claimed in claim 7, wherein the shear bearing member comprises a shear core plate and a connecting plate, the connecting plate is fixedly arranged at one end of the shear core plate, and the connecting plate is connected with the anchor connector in a matching manner through a fastener so as to lock the shear bearing member in the assembly groove.
9. The floating track bed with a centrally-mounted shear hinge as claimed in claim 7, wherein the anchor connector has a removable limit pin or stop corresponding to the assembly slot, the limit pin or stop being engaged with the anchor connector to lock the shear-resistant load-bearing member in the assembly slot.
10. The floating track bed with a centrally located shear hinge of claim 7 wherein the anchor connection is integral with the rim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023280125.4U CN214245134U (en) | 2020-12-30 | 2020-12-30 | Floating track bed with centrally-mounted shear hinges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023280125.4U CN214245134U (en) | 2020-12-30 | 2020-12-30 | Floating track bed with centrally-mounted shear hinges |
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| Publication Number | Publication Date |
|---|---|
| CN214245134U true CN214245134U (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023280125.4U Active CN214245134U (en) | 2020-12-30 | 2020-12-30 | Floating track bed with centrally-mounted shear hinges |
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|---|---|
| CN (1) | CN214245134U (en) |
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- 2020-12-30 CN CN202023280125.4U patent/CN214245134U/en active Active
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