Floating slab device for rapid rail transit and rail

Abstract

The utility model discloses a floating slab device for rapid rail transit and a rail. The floating slab device comprises a vibration isolator device, a floating slab and a built-in shear hinge, the vibration isolator device comprises a plurality of built-in vibration isolators and a plurality of shared vibration isolators; the plurality of built-in vibration isolators can be arranged on the base, and the built-in vibration isolators can support the floating slab to be separated from the surface of the base; the floating slab is provided with a plurality of sleeves, and the sleeves can be sleeved with the built-in vibration isolators; the shared vibration isolators can be arranged on the base, and the shared vibration isolators can be arranged at the ends of the floating slabs; a plurality of connecting holes are formed in the end part of the floating plate; the sleeve adjacent to one end of the floating slab is provided with a connecting piece; the built-in shear hinges are detachably connected with the connecting pieces, and the built-in shear hinges can be arranged in the connecting holes and used for connecting the floating slabs of the adjacent floating slab devices. The floating slab track has a high vibration reduction effect and can be arranged in a rapid track traffic line to form a floating slab track convenient for stable running of a train.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transportation, and in particular relates to a floating plate device and a track for rapid rail transportation. Background Art

[0002] Steel spring floating slab tracks are widely used in urban rail transit with speeds of 100 kilometers per hour or less due to their excellent vibration reduction performance. The steel spring floating slab arranged in the track can form a "mass-isolator" system, which can use the larger mass inertia of the reinforced concrete track slab to balance part of the train load. The transmitted load consumes part of the energy through the damping of the isolator, so that the vibration energy generated by the train operation is greatly reduced when it is transmitted to the invert and tunnel wall, thereby achieving the vibration reduction function.

[0003] At present, my country's rapid rail transit is still in its early stages of development. There are few application cases of steel spring floating plate tracks in rapid rail transit lines, and research on their adaptability under rapid line conditions is also relatively insufficient. Urban express railways have the characteristics of faster train speeds and heavier axle loads. If the traditional steel spring floating plate track system is directly applied to rapid rail transit lines, it may produce a large dynamic response, seriously affecting driving safety. Therefore, it is urgent to develop a new floating plate device and track for rapid rail transit to deal with the vibration problems it brings.

[0004] Therefore, a new technology is needed to solve the problem that the prior art lacks a new floating plate device for rapid rail transit; a new technology is needed to solve the problem that the prior art lacks a floating plate track for rapid rail transit. Utility Model Content

[0005] In order to solve the above problems in the prior art, the utility model provides a floating plate device for rapid rail transit, which has the effect of easy maintenance and high vibration reduction. It can be arranged in a rapid rail transit line to finally form a floating plate track that facilitates the smooth running of trains.

[0006] The utility model adopts the following technical solutions:

[0007] A floating plate device for rapid rail transit, comprising a vibration isolator device, a floating plate and a built-in shear hinge; the vibration isolator device comprises a plurality of built-in vibration isolators and a plurality of shared vibration isolators; the plurality of built-in vibration isolators can be arranged on a base, and the built-in vibration isolators can support the floating plate to separate it from the base surface; the floating plate is provided with a plurality of sleeves, and the sleeves can be fitted with the built-in vibration isolators; the shared vibration isolators can be arranged on a base, and the shared vibration isolators can be arranged at the end of the floating plate; the end of the floating plate is provided with a plurality of connecting holes; the sleeve adjacent to one end of the floating plate is provided with a connecting piece; the built-in shear hinge is detachably connected to the connecting piece, and the built-in shear hinge can be arranged in the connecting hole, and is used to connect the floating plates of adjacent floating plate devices.

[0008] Furthermore, each of the sleeves is provided with at least two placement positions; each of the placement positions is fitted with one of the built-in vibration isolators.

[0009] Furthermore, the built-in vibration isolator includes a lower shell, an upper shell, a first elastic telescopic member and a second elastic telescopic member; the lower shell and the upper shell are connected by the first elastic telescopic member and maintain a set initial height distance; one end of the second elastic telescopic member is arranged on the lower shell, and in a natural state, the other end of the second elastic telescopic member is located between the upper shell and the lower shell; the first elastic telescopic member and the second elastic telescopic member are coaxially arranged; the lower shell can be arranged on the base; the upper shell can be in contact and connected with the inner top surface of the sleeve.

[0010] Furthermore, the built-in vibration isolator also includes a first damping fluid and a first sealing device. The first damping fluid is arranged in the chamber of the lower shell and wraps around a partial area of ​​the first elastic telescopic part and the second elastic telescopic part; the first sealing device is arranged on the lower shell and is used to seal the first damping fluid.

[0011] Furthermore, the shared vibration isolator includes a first shell, a second shell and a third elastic telescopic member; the first shell and the second shell are connected by the third elastic telescopic member and maintain a set initial height; the first shell can be arranged on a base; a limiting device is provided on the second shell, and the bottom of the end of the floating plate can be placed on the second shell.

[0012] Furthermore, the shared vibration isolator also includes a second damping fluid and a second sealing device; the second damping fluid is arranged in the chamber of the first shell and wraps a partial area of ​​the third elastic telescopic member; the second sealing device is arranged on the first shell and is used to seal the second damping fluid.

[0013] Furthermore, the limiting device includes a first direction limiting member, which is arranged above the second shell and is used to limit the displacement of the floating plate.

[0014] Furthermore, the limiting device also includes a second direction limiting member, which is arranged above the second shell and maintains a set angle with the first direction limiting member; the second direction limiting member is also used to limit the displacement of the floating plate.

[0015] Furthermore, a grouting hole is provided at the end of the floating plate; the grouting hole connects the connecting hole and the upper part of the end of the floating plate.

[0016] Another object of the utility model is to provide a floating plate track to improve the stability of the track, so as to facilitate the safe travel of trains on the fast track line and meet the development needs of fast track transportation.

[0017] A floating plate track comprises a base, a floating plate device for rapid rail transit, fasteners and rails; a plurality of the floating plate devices are arranged on the base along the track line direction, and adjacent floating plates are connected by the built-in shear hinges; in addition, the bottom ends of adjacent floating plates are placed on the shared vibration isolator; bolt sleeves are provided on the floating plates, and the fasteners are connected to the floating plates through the bolt sleeves and buckle the rails.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model discloses a floating plate device for rapid rail transit, wherein the vibration isolator device comprises a plurality of built-in vibration isolators and a plurality of shared vibration isolators, wherein the built-in vibration isolators can be arranged on a base, and the floating plate is provided with a sleeve which is fitted with the built-in vibration isolators, and when the floating plate is arranged on the built-in vibration isolators through the sleeve, the built-in vibration isolators can support the floating plate to separate it from the surface of the base; a plurality of built-in vibration isolators can be fitted inside the sleeve of the utility model, and therefore, the vibration reduction performance of the floating plate device can be adjusted by changing the number and type of the built-in vibration isolators in the sleeve, so that the floating plate device of the utility model has a multi-stage vibration reduction effect, and solves the problem that the stiffness and damping of the vibration isolators of the previous floating plate device cannot be adjusted. A shared vibration isolator can be set on a base and arranged at the end of a floating plate. Through the shared vibration isolator and the built-in shear hinge, a stable connection between adjacent floating plates can be achieved, thereby improving the stability of the floating plate track. At the same time, a sleeve adjacent to one end of the floating plate is provided with a connecting piece, through which the built-in shear hinge can be detachably fixed, and through the connecting hole at the end of the floating plate, the shear hinge can be "built-in" and connected to adjacent floating plates. Compared with traditional external shear hinges, the built-in shear hinge can facilitate maintenance personnel to walk on the track, and also brings convenience to track maintenance work.

[0020] The floating plate device of the utility model has the effects of easy maintenance and high vibration reduction. Several floating plate devices can be arranged in a rapid rail transit line, and finally form a floating plate track that is convenient for the smooth running of trains. When the floating plate device of the utility model is arranged in the transition section of the rapid rail transit line, the number and type of vibration isolators can be adjusted to achieve a multi-level transition of track stiffness, effectively solving the problem of a single type of vibration isolators and insufficient stiffness grade division in the transition section of the traditional floating plate track. This technology can optimize the load transfer path when the train passes through the transition section, thereby significantly improving the smoothness of train operation and the durability of the track, reducing structural fatigue damage and maintenance costs, improving the overall reliability and safety of the floating plate track, effectively improving passenger comfort, and extending the service life of the track and train equipment.

[0021] The utility model discloses a floating plate track, which can improve the stability of the track and facilitate the safe running of trains on the fast track line, so as to meet the development demand of fast track transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The technology of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0023] Figure 1 It is a top view of the floating plate device of the utility model;

[0024] Figure 2 yes Figure 1 Sectional view at CC;

[0025] Figure 3 yes Figure 1 Sectional view at DD;

[0026] Figure 4 It is a schematic elevation diagram showing the width and thickness of the floating slab;

[0027] Figure 5 It is a plan view showing the length of the floating slab;

[0028] Figure 6 is a connection relationship diagram of adjacent floating plate devices;

[0029] Figure 7 It is a three-dimensional schematic diagram of a built-in vibration isolator;

[0030] Figure 8 It is a schematic diagram of the arrangement of the built-in vibration isolator in the sleeve;

[0031] Fig. 9 It is a three-dimensional schematic diagram of a sleeve provided with a connecting piece and the connecting piece being connected to a built-in shear hinge;

[0032] Fig.10 It is a top view of the first type of shared vibration isolator;

[0033] Fig.11 It is a top view of the second type of shared vibration isolator;

[0034] Fig.12 is a top view of a first embodiment of a floating plate device;

[0035] Fig.13 is a top view of a second embodiment of a floating plate device;

[0036] Fig.14 is a top view of a third embodiment of a floating plate device;

[0037] Fig.15 is a top view of a fourth embodiment of a floating plate device;

[0038] Fig.16 1 is a top view of a fifth embodiment of a floating plate device.

[0039] Reference numerals:

[0040] 1-vibration isolator device; 11-built-in vibration isolator; 111-lower shell; 112-upper shell; 113-first elastic telescopic member; 114-second elastic telescopic member; 115-first damping fluid; 116-first sealing device; H1-initial height distance; 12-shared vibration isolator; 121-first shell; 122-second shell; 123-third elastic telescopic member; 124-limiting device; A-first direction limiting member; B-second direction limiting member; K1-first type shared vibration isolator; K2-second type shared vibration isolator;

[0041] 2-floating plate; 21-sleeve; 211-placement position; 22-connection hole; 23-connector; 24-grouting hole; C-section symbol; D-section symbol; E-transverse; F-longitudinal; L-plate length; W-plate width; T-plate thickness; S-plate seam; P1-first end; P2-middle part; P3-second end; X-line centerline;

[0042] 3-Built-in shear hinge; 4-base; 5-rail support; 6-bolt sleeve; 7-rail; H2-height. DETAILED DESCRIPTION

[0043] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments and features in the embodiments in this application can be combined with each other without conflict. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0044] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the accompanying drawings.

[0045] Reference Figures 1 to 11, a floating plate device for rapid rail transit, comprising a vibration isolator device 1, a floating plate 2 and a built-in shear hinge 3; the vibration isolator device 1 comprises a plurality of built-in vibration isolators 11 and a plurality of shared vibration isolators 12; the plurality of built-in vibration isolators 11 can be arranged on a base 4, and the built-in vibration isolators 11 can support the floating plate 2 so that it is separated from the surface of the base 4; the floating plate 2 is provided with a plurality of sleeves 21, and the sleeves 21 can be fitted with the built-in vibration isolators 11; the shared vibration isolators 12 can be arranged on a base 4, and the shared vibration isolators 12 can be arranged at the end of the floating plate 2; the end of the floating plate 2 is provided with a plurality of connecting holes 22; the sleeve 21 adjacent to one end of the floating plate is provided with a connecting piece 23; the built-in shear hinge 3 is detachably connected to the connecting piece 23, and the built-in shear hinge 3 can be arranged in the connecting hole 22, for connecting the floating plates 2 of adjacent floating plate devices.

[0046] Reference Figure 1 and Figure 8 In one embodiment, each of the sleeves 21 is provided with at least two placement positions 211; each of the placement positions 211 is fitted with one of the built-in vibration isolators 11, so that the stiffness and damping of the floating plate device can be adjusted by changing the number and type of the built-in vibration isolators 11 in the sleeve 21, thereby achieving a high vibration reduction effect. And by changing the number and type of the built-in vibration isolators 11 in the sleeve 21, the stiffness of the transition section of the track line can be adjusted in multiple levels, which is more conducive to improving the stability of the floating plate track and the running smoothness of the train.

[0047] Reference Figure 1 and Figure 7 In one embodiment, the built-in vibration isolator 11 includes a lower shell 111, an upper shell 112, a first elastic telescopic member 113 and a second elastic telescopic member 114; the lower shell 111 and the upper shell 112 are connected by the first elastic telescopic member 113 and maintain a set initial height distance H1; one end of the second elastic telescopic member 114 is arranged on the lower shell 111, and in a natural state, the other end of the second elastic telescopic member 114 is between the upper shell 112 and the lower shell 111; the first elastic telescopic member 113 and the second elastic telescopic member 114 are coaxially arranged; the lower shell 111 can be arranged on the base 4; the upper shell 112 can be in contact with and connected to the inner top surface of the sleeve 21. When the first elastic telescopic member 113 is in a natural state, it is higher than the second elastic telescopic member 114. Therefore, when the train does not run to the floating plate track, only the first elastic telescopic member 113 is subjected to force, and the second elastic telescopic member 114 is not subjected to force; when the train runs to the floating plate track, both the first elastic telescopic member 113 and the second elastic telescopic member 114 are subjected to force.

[0048] Reference Figure 1 and Figure 7 In one embodiment, the built-in vibration isolator 11 also includes a first damping fluid 115 and a first sealing device 116. The first damping fluid 115 is disposed in the chamber of the lower shell 111 and wraps around a portion of the first elastic telescopic member 113 and the second elastic telescopic member 114. The first sealing device 116 is disposed on the lower shell 111 and is used to seal the first damping fluid 115.

[0049] In one embodiment, the first elastic telescopic member 113 and the second elastic telescopic member 114 are both steel springs.

[0050] Reference Figure 2 and Fig.10 (or Figure 2 and Fig.11 ), in one embodiment, the shared vibration isolator 12 includes a first shell 121, a second shell 122 and a third elastic telescopic member 123; the first shell 121 and the second shell 122 are connected by the third elastic telescopic member 123 and maintain a set initial height distance; the first shell 121 can be arranged on a base 4; a limiting device 124 is provided on the second shell 122, and the bottom end of the floating plate 2 can be placed on the second shell 122.

[0051] Reference Figure 2 and Fig.10 (or Figure 2 and Fig.11 ), in one embodiment, the shared vibration isolator 12 also includes a second damping fluid and a second sealing device; the second damping fluid is arranged in the chamber of the first shell 121 and wraps a partial area of ​​the third elastic telescopic member 123; the second sealing device is arranged on the first shell 121, and is used to seal the second damping fluid.

[0052] In one implementation, the third elastic telescopic member 123 is a steel spring.

[0053] Reference Figure 1 , reference Figure 2 and Fig.10 In one embodiment, the limiting device 124 includes a first direction limiting member A, and the first direction limiting member A is arranged above the second shell 122 and is used to limit the displacement of the floating plate 2 along the lateral direction E.

[0054] Reference Figure 1 , reference Figure 2 and Fig.10In one embodiment, the limiting device 124 also includes a second direction limiting member B, which is arranged above the second shell 122, and the second direction limiting member B maintains a set angle with the first direction limiting member A; the second direction limiting member B is used to limit the displacement of the floating plate 2 along the longitudinal direction F.

[0055] Reference Fig.10 and Fig.11 In one embodiment, the shared vibration isolators 12 include a first type of shared vibration isolators K1 and a second type of shared vibration isolators K2.

[0056] Reference Figures 1 to 16 In one embodiment, a grouting hole 24 is further provided at the end of the floating plate 2, and the grouting hole 24 connects the connecting hole 22 and the upper part of the end of the floating plate 2, and the grouting hole 241 is used for grouting to fix the built-in shear hinge 3; the floating plate 2 is arranged with a plurality of the sleeves 21, but not every sleeve 21 is provided with the connecting piece 23, and only the sleeve 21 adjacent to one end of the floating plate 2 needs to be provided with the connecting piece 23. The floating plate 2 has two ends, and it is not necessary to provide the connecting piece 23 for the sleeves 21 at both ends, and only the sleeve 21 at one end needs to be provided with the connecting piece 23, and the connecting piece 23 is used to be threadedly connected with the built-in shear hinge 3; therefore, after the sleeve 21 with the connecting piece at one end of the floating plate 2 is connected to the built-in shear hinge 3, the built-in shear hinge 3 is connected to the connecting hole 22 at one end of the other floating plate 2, and then, one end of the built-in shear hinge 3 is fixed by grouting through the grouting hole 24 of the other floating plate 2.

[0057] Reference Fig. 9 In one embodiment, the connecting member 23 is a threaded sleeve.

[0058] In one embodiment, each built-in vibration isolation unit is composed of a sleeve 21 and a plurality of built-in vibration isolators 11 arranged in the sleeve, and the built-in vibration isolation unit has three stiffness models, the first built-in vibration isolation unit has a stiffness of 13.2 kN / mm, the second built-in vibration isolation unit has a stiffness of 10.6 kN / mm, and the third built-in vibration isolation unit has a stiffness of 6.6 kN / mm;

[0059] The shared vibration isolator 12 has two stiffness models, the first shared vibration isolator has a stiffness of 20.8 kN / mm, and the second shared vibration isolator has a stiffness of 15.0 kN / mm.

[0060] Reference Fig.12In the first embodiment, the floating plate device floating plate 2 has a first end P1, a middle part P2, and a second end P3. The sleeve adjacent to the first end P1 is provided with a connecting piece 23, the sleeve in the middle part P2 is not provided with a connecting piece, and the sleeve adjacent to the second end P3 is also not provided with a connecting piece; a first type shared vibration isolator K1 with a stiffness of 20.8 kN / mm is arranged at the bottom of the floating plate 2 at the first end P1, a built-in vibration isolation unit with a stiffness of 6.6 kN / mm is arranged adjacent to the first end P1, a built-in vibration isolation unit with a stiffness of 13.2 kN / mm is arranged in the middle part P2, and a built-in vibration isolation unit with a stiffness of 6.6 kN / mm is arranged adjacent to the second end P3, and a first type shared vibration isolator K1 with a stiffness of 20.8 kN / mm is arranged at the bottom of the floating plate 2 at the second end P3.

[0061] Reference Fig.13 In the second embodiment, the floating plate device floating plate 2 has a first end P1, a middle part P2, and a second end P3. The sleeve adjacent to the first end P1 is not provided with a connecting piece, the sleeve in the middle part P2 is not provided with a connecting piece, and the sleeve adjacent to the second end P3 is provided with a connecting piece 23; a second type shared vibration isolator K2 with a stiffness of 15.0 kN / mm is arranged at the bottom of the floating plate 2 at the first end P1, a built-in vibration isolation unit with a stiffness of 13.2 kN / mm is arranged adjacent to the first end P1, a built-in vibration isolation unit with a stiffness of 13.2 kN / mm is arranged in the middle part P2, a built-in vibration isolation unit with a stiffness of 13.2 kN / mm is arranged adjacent to the second end P3, and a first type shared vibration isolator K2 with a stiffness of 20.8 kN / mm is arranged at the bottom of the floating plate 2 at the second end P3.

[0062] Reference Fig.14 In the third embodiment, the floating plate device floating plate 2 has a first end P1, a middle part P2, and a second end P3. The sleeve adjacent to the first end P1 is not provided with a connecting piece, the sleeve in the middle part P2 is not provided with a connecting piece, and the sleeve adjacent to the second end P3 is provided with a connecting piece 23; a first type shared vibration isolator K1 with a stiffness of 20.8 kN / mm is arranged at the bottom of the floating plate 2 at the first end P1, a built-in vibration isolation unit with a stiffness of 13.2 kN / mm is arranged adjacent to the first end P1, a built-in vibration isolation unit with a stiffness of 13.2 kN / mm is arranged in the middle part P2, a built-in vibration isolation unit with a stiffness of 13.2 kN / mm is arranged adjacent to the second end P3, and a second type shared vibration isolator K2 with a stiffness of 15.0 N / mm is arranged at the bottom of the floating plate 2 at the second end P3.

[0063] Reference Fig.15In the fourth embodiment, the floating plate device floating plate 2 has a first end P1, a middle part P2, and a second end P3. The sleeve adjacent to the first end P1 is not provided with a connecting piece, the sleeve in the middle part P2 is not provided with a connecting piece, and the sleeve adjacent to the second end P3 is provided with a connecting piece 23; a first type shared vibration isolator K1 with a stiffness of 20.8 kN / mm is arranged at the bottom of the floating plate 2 at the first end P1, a built-in vibration isolation unit with a stiffness of 13.2 kN / mm is arranged adjacent to the first end P1, a built-in vibration isolation unit with a stiffness of 13.2 kN / mm is arranged in the middle part P2, a built-in vibration isolation unit with a stiffness of 13.2 kN / mm is arranged adjacent to the second end P3, and a first type shared vibration isolator K1 with a stiffness of 20.8 N / mm is arranged at the bottom of the floating plate 2 at the second end P3.

[0064] Reference Fig.16 In the fifth embodiment, the floating plate device floating plate 2 has a first end P1, a middle part P2, and a second end P3. The sleeve adjacent to the first end P1 is not provided with a connecting piece, the sleeve in the middle part P2 is not provided with a connecting piece, and the sleeve adjacent to the second end P3 is provided with a connecting piece 23; a first type shared vibration isolator K1 with a stiffness of 20.8 kN / mm is arranged at the bottom of the floating plate 2 at the first end P1, a built-in vibration isolation unit with a stiffness of 10.6 kN / mm is arranged adjacent to the first end P1, a built-in vibration isolation unit with a stiffness of 13.2 kN / mm is arranged in the middle part P2, a built-in vibration isolation unit with a stiffness of 10.6 kN / mm is arranged adjacent to the second end P3, and a first type shared vibration isolator K1 with a stiffness of 20.8 N / mm is arranged at the bottom of the floating plate 2 at the second end P3.

[0065] According to the actual line requirements, the floating plate device of the first embodiment to the fifth embodiment (i.e. Figures 12 to 16 The floating plate device shown in the figure is arranged on the track line to finally form a floating plate track suitable for rapid rail transportation requirements. In one embodiment, the floating plate track is specifically arranged as a Fig.13 The device shown, two Fig.15 The device shown, two Fig.16 The device or piece Fig.14 The device shown, two Fig.15 The device shown, two Fig.16 The device shown.

[0066] Another object of the utility model is to provide a floating plate track to improve the stability of the track, so as to facilitate the safe travel of trains on the fast track line and meet the development needs of fast track transportation.

[0067] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6A floating plate track comprises a base 4, a floating plate device for rapid rail transit, fasteners and rails 7; a plurality of floating plate devices are arranged on the base 4 along the track line direction, and adjacent floating plates 2 are connected by built-in shear hinges 3; in addition, the bottom ends of adjacent floating plates 2 are placed on the upper surface of the shared vibration isolator 12; a bolt sleeve 6 is provided on the floating plate 2, and the fastener is connected to the floating plate 2 through the bolt sleeve 6 and buckles the rail 7.

[0068] Reference Figure 1 , Figure 2 and Figure 3 In one embodiment, the floating plate 2 has a rail support platform 5, the rail support platform 5 and the floating plate 2 are cast as one body, and the bolt sleeve 6 is pre-embedded on the rail support platform 5; the rail 7 is arranged on the rail support platform 5, the fastener is connected with the bolt sleeve 6, and the rail 7 is buckled and pressed, and a vibration-damping pad and a height-adjusting pad are arranged between the fastener and the rail 7.

[0069] In one embodiment, in the floating plate track, a vibration-damping pad is provided between the shared vibration isolator 12 and the floating plate 2 .

[0070] In one embodiment, the height H2 of the floating plate track from the lower surface of the base 4 to the top of the rail 7 is 1100 mm; the floating plate 2 of the floating plate device has a length L of 4800 mm, a width W of 2900 mm, and a thickness T of 550 mm.

[0071] Preferably, in the floating plate track, the width of the plate gap S between adjacent floating plates 2 at the line center line X is 24 mm (refer to Figure 6 ).

[0072] Preferably, in the floating plate track, a expansion joint is provided on the base 4 between every two floating plates.

[0073] In one embodiment, the floating plate track of the utility model can be applied to a rapid rail transit line with a maximum speed of 160 km / h, and the Z vibration level transmitted to the tunnel wall when a train passes through can be reduced by more than 13 dB.

[0074] Other contents of the floating plate device and track for rapid rail transit described in the utility model refer to the prior art and will not be described in detail here.

[0075] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A floating plate device for rapid rail transit, characterized in that: It comprises a vibration isolator device, a floating plate and a built-in shear hinge; the vibration isolator device comprises a plurality of built-in vibration isolators and a plurality of shared vibration isolators; the plurality of built-in vibration isolators can be arranged on a base, and the built-in vibration isolators can support the floating plate to separate it from the base surface; the floating plate is provided with a plurality of sleeves, and the sleeves can be fitted with the built-in vibration isolators; the shared vibration isolator can be arranged on a base, and the shared vibration isolator can be arranged at the end of the floating plate; the end of the floating plate is provided with a plurality of connecting holes; the sleeve adjacent to one end of the floating plate is provided with a connecting piece; the built-in shear hinge is detachably connected to the connecting piece, and the built-in shear hinge can be arranged in the connecting hole, so as to connect the floating plates of adjacent floating plate devices.

2. The floating plate device for rapid rail transit according to claim 1, characterized in that: Each sleeve is provided with at least two placement positions; each placement position is fitted with one of the built-in vibration isolators.

3. The floating plate device for rapid rail transit according to claim 1, characterized in that: The built-in vibration isolator comprises a lower shell, an upper shell, a first elastic telescopic member and a second elastic telescopic member; the lower shell and the upper shell are connected by the first elastic telescopic member and maintain a set initial height distance; one end of the second elastic telescopic member is arranged on the lower shell, and in a natural state, the other end of the second elastic telescopic member is between the upper shell and the lower shell; the first elastic telescopic member and the second elastic telescopic member are coaxially arranged; the lower shell can be arranged on the base; The upper shell can be in contact with the inner top surface of the sleeve.

4. The floating plate device for rapid rail transit according to claim 3, characterized in that: The built-in vibration isolator also includes a first damping fluid and a first sealing device. The first damping fluid is arranged in the chamber of the lower shell and wraps around a portion of the first elastic telescopic member and the second elastic telescopic member. The first sealing device is arranged on the lower shell and is used to seal the first damping fluid.

5. The floating plate device for rapid rail transit according to claim 1, characterized in that: The shared vibration isolator includes a first shell, a second shell and a third elastic telescopic member; the first shell and the second shell are connected by the third elastic telescopic member and maintain a set initial height; the first shell can be arranged on a base; a limiting device is provided on the second shell, and the bottom of the end of the floating plate can be placed on the second shell.

6. The floating plate device for rapid rail transit according to claim 5, characterized in that: The shared vibration isolator also includes a second damping fluid and a second sealing device; the second damping fluid is arranged in the accommodation chamber of the first shell and wraps a partial area of ​​the third elastic telescopic member; the second sealing device is arranged on the first shell and is used to seal the second damping fluid.

7. The floating plate device for rapid rail transit according to claim 5, characterized in that: The limiting device includes a first direction limiting member, which is arranged above the second shell and is used to limit the displacement of the floating plate.

8. The floating plate device for rapid rail transit according to claim 7, characterized in that: The limiting device also includes a second direction limiting member, which is arranged above the second shell body and maintains a set angle with the first direction limiting member; the second direction limiting member is also used to limit the displacement of the floating plate.

9. The floating plate device for rapid rail transit according to claim 1, characterized in that: A grouting hole is also provided at the end of the floating plate; the grouting hole connects the connecting hole and the upper part of the end of the floating plate.

10. A floating plate track, characterized in that: It comprises a base, a floating plate device for rapid rail transit as claimed in any one of claims 1 to 9, fasteners and rails; a plurality of the floating plate devices are arranged on the base along the direction of the rail line, and adjacent floating plates are connected by the built-in shear hinges; in addition, the bottom ends of adjacent floating plates are placed on the shared vibration isolator; bolt sleeves are provided on the floating plates, and the fasteners are connected to the floating plates through the bolt sleeves and buckle the rails.

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