WO2021063287A1 - Poutre à rail et système de transport ferroviaire la comprenant - Google Patents

Poutre à rail et système de transport ferroviaire la comprenant Download PDF

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Publication number
WO2021063287A1
WO2021063287A1 PCT/CN2020/118110 CN2020118110W WO2021063287A1 WO 2021063287 A1 WO2021063287 A1 WO 2021063287A1 CN 2020118110 W CN2020118110 W CN 2020118110W WO 2021063287 A1 WO2021063287 A1 WO 2021063287A1
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WO
WIPO (PCT)
Prior art keywords
hole
track beam
rail beam
rail
overlapping
Prior art date
Application number
PCT/CN2020/118110
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English (en)
Chinese (zh)
Inventor
杨靖
王赛宁
邱佳隆
刘晓彤
Original Assignee
比亚迪股份有限公司
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Filing date
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Application filed by 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Publication of WO2021063287A1 publication Critical patent/WO2021063287A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D1/00—Bridges in general
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/30—Metal
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/40—Plastics

Definitions

  • This application relates to the technical field of rail transit, and in particular to a rail beam and a rail transit system with the same.
  • the parts on both sides near the joint of the track beam need to be provided with supports (pier columns) to support the parts on both sides of the joint of the track beam, thereby ensuring that the train is Reliable driving on track beams.
  • the tensile support used in the track beam needs to be pre-embedded and then poured in concrete, and the installation accuracy is also relatively strict, which makes the manufacturing process of the track beam complicated and high manufacturing cost.
  • an objective of the present application is to provide a track beam, which can simplify the manufacturing process and installation difficulty of the track beam, reduce the manufacturing cost of the track beam, and improve the structural reliability of the track beam.
  • This application also proposes a rail transit system, including the above-mentioned rail beam.
  • the rail beam according to the embodiment of the present application includes: a first rail beam, one end of the first rail beam has a first overlapping part; a second rail beam, one end of the second rail beam has a second overlapping part , The second overlap portion is overlapped below the first overlap portion; and a connecting component, the upper portion of the connecting component is connected to the first overlap portion, and the lower portion of the connecting component is connected to the The second overlapping portion is connected, so that the first overlapping portion and the second overlapping portion are connected by the connecting component.
  • one end of the first rail beam has a first overlap portion
  • one end of the second rail beam has a second overlap portion
  • the second overlap portion overlaps the first overlap portion below.
  • the upper part of the connecting assembly is connected with the first overlapping part
  • the lower part of the connecting assembly is connected with the second overlapping part, so that the first overlapping part and the second overlapping part are connected through the connecting assembly.
  • the first rail beam and the second rail beam are both I-shaped steel beams, one end of the web of the first rail beam is formed with a first notch, and the first The part of the rail beam above the first gap is the first overlap portion, one end of the web of the second rail beam is formed with a second gap, and the second rail beam is located below the second gap Is the second overlapping portion, wherein the first overlapping portion is inserted into the second gap so as to be located above the second overlapping portion, and the second overlapping portion is inserted into The first notch is located below the first overlapping portion.
  • the connecting component is fixedly connected to one of the first overlapping portion and the second overlapping portion, and the connecting component is fixedly connected to the first overlapping portion and the second overlapping portion.
  • the upper part of the connecting assembly is fixedly connected to the first overlapping part by a high-strength bolt, and the lower part of the connecting assembly is slidingly connected to the second overlapping part by a rotating pin.
  • the sliding direction of the rotating pin shaft is the extending direction of the track beam at the joint between the first track beam and the second track beam.
  • the connecting assembly includes two connecting plates, the first overlapping portion and the second overlapping portion are both sandwiched between the two connecting plates, and the The first overlapping portion and the second overlapping portion are respectively connected to the two connecting plates.
  • the first overlapping portion has a first connecting hole
  • the second overlapping portion has a second connecting hole
  • each of the connecting plates has a first matching hole.
  • the upper part of the connecting assembly is connected to the first lap portion through a first connecting piece that passes through the first mating hole and the first connecting hole
  • the lower part of the connecting assembly It is connected to the second lap portion through a second connecting member penetrating through the second mating hole and the second connecting hole.
  • the number of the first connecting holes and the first mating holes are the same and the positions are opposite, and the first connecting member is a thread penetrating through the first connecting hole and the first mating hole Connecting pieces.
  • connection assembly further includes: a first backing plate, the first backing plates are two, and each of the connection plates and the first overlapping portion is provided with one A first backing plate, the first backing plate is mounted on the first lap portion or the connecting plate, the first backing plate has a first via hole, the first via hole and the second The number of a connecting hole and the first matching hole are the same and the positions are opposite, and the first connecting member is penetrated through the first connecting hole, the first via hole and the first matching hole.
  • the second connecting hole is a sliding hole
  • the second connecting member is a rotating pin that penetrates the second connecting hole and the second matching hole
  • the The rotating pin shaft is slidable along the extending direction of the second connecting hole.
  • connection assembly further includes: a second backing plate, the second backing plate is two, each of the connecting plate and the second overlapping part is provided with one A second backing plate, the second backing plate is installed on the second lap portion, the second backing plate is provided with a second via hole, and the shape of the second via hole and the second connecting hole Same and opposite in position, the second connecting member passes through the second connecting hole, the second via hole, and the second mating hole, and runs along the second via hole and the second connecting hole. Slippage.
  • connection assembly further includes: a first wrapper, and the first wrapper wraps at least the sliding mating surface of the second connection hole.
  • the first wrapper is a stainless steel sleeve.
  • the connecting assembly further includes: a slider sleeved on the outside of the second connecting member and passing through the second connecting hole so as to extend along the second connecting hole.
  • the connecting hole slips.
  • the connecting assembly further includes: a second wrapper, and the second wrapper wraps at least the sliding mating surface of the slider.
  • the second wrapper is a polytetrafluoroethylene board.
  • the connecting assembly further includes: lock pins, the lock pins are two and are respectively locked and inserted at both ends of the second connecting member, and the two connecting plates are located at two Between the lock pins.
  • the connecting assembly further includes: a third backing plate, the third backing plate is sleeved on the rotating pin, the third backing plate is two, each of the A third backing plate is provided between the lock pin and the connecting plate respectively.
  • the track beam further includes: a joint pier column, the joint pier column is supported at the bottom of the second track beam, and is located at the bottom of the second track beam where the One end of the second overlapping part.
  • the rail transit system includes a train and the rail beam according to the foregoing embodiment of the present application, and the train runs along the rail beam.
  • the manufacturing process and installation difficulty of the rail beam can be simplified, the manufacturing cost of the rail beam can be reduced, and the structural reliability of the rail beam can be improved. This enables the train to travel reliably on the track beam.
  • Figure 1 is a schematic diagram of a track beam according to some embodiments of the present application.
  • Figure 2 is a cross-sectional view in the direction of A-A in Figure 1;
  • Fig. 3 is a cross-sectional view in the direction of B-B in Fig. 1;
  • Figure 4 is a schematic diagram of a first track beam according to some embodiments of the present application.
  • Figure 5 is a schematic diagram of a second track beam according to some embodiments of the present application.
  • Fig. 6 is a schematic diagram of a second track beam according to some embodiments of the present application.
  • Figure 7 is a cross-sectional view in the direction of C-C in Figure 6;
  • Fig. 8 is a schematic diagram of a connecting board according to some embodiments of the present application.
  • Fig. 9 is a schematic diagram of a first pad according to some embodiments of the present application.
  • Fig. 10 is a schematic diagram of a second backing plate according to some embodiments of the present application.
  • Figure 11 is a schematic diagram of a first package according to some embodiments of the present application.
  • Fig. 12 is a partial structural diagram of a connection assembly according to some embodiments of the present application.
  • Fig. 13 is a partial structural diagram of a connection assembly according to some embodiments of the present application.
  • Fig. 14 is a schematic diagram of a rail transit system according to some embodiments of the present application.
  • First pad 32 first via 32a;
  • Second pad 33 second via 33a;
  • Rail transit system 1000 ; train 200.
  • connection should be understood in a broad sense, unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • connection should be understood in a broad sense, unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • the specific meanings of the above-mentioned terms in this application can be understood under specific circumstances.
  • the track beam 100 includes: a first track beam 1, a second track beam 2 and a connecting component 3.
  • one end of the first rail beam 1 has a first overlap portion 11
  • one end of the second rail beam 2 has a second overlap portion 21, and the second overlap portion 21 is overlapped on the first overlap portion 11.
  • the upper part of the connecting assembly 3 is connected to the first overlapping part 11, and the lower part of the connecting assembly 3 is connected to the second overlapping part 21, so that the first overlapping part 11 and the second overlapping part 21 are connected through the connecting assembly 3.
  • the track beam 100 of the embodiment of the present application can only be provided with a support on the side where the first track beam 1 is located or the side where the second track beam 2 is located to support the track beam 100.
  • the part of the rail beam 100 on the side where the support is not provided can transmit the pressure of the train 200 to the part of the rail beam 100 on the other side through the connecting assembly 3.
  • the second overlap portion 21 overlaps below the first overlap portion 11, so that when the connection assembly 3 fails, the second overlap portion 21 can support the first overlap portion 11 to a certain extent.
  • the cooperation of the first overlap portion 11 and the second overlap portion 21 forms two lines of defense to prevent the rail beam 100 from failing immediately after the connection assembly 3 fails, and to improve the safety and reliability of the rail transit system 1000. Therefore, the support can be provided only on the side where the second track beam 2 is located, and the support is not required to be provided on the side where the first track beam 1 is located.
  • the pressure on the first rail beam 1 can be transferred to the second rail beam 2 through the connecting assembly 3 from top to bottom, and the second rail beam 2 is transferred to the support. Therefore, the reliability of the train 200 running on the track beam 100 can be ensured.
  • the above arrangement method is beneficial to reduce the number of supporting seats, simplify the manufacturing process of the track beam 100, and reduce the manufacturing cost of the track beam 100.
  • the force transmission process is: the train 200 applies pressure to the first track beam 1, and the first track beam 1 can transfer the downward pressure through the first lap 11 It is transmitted to the connecting assembly 3, the connecting assembly 3 transfers the force from top to bottom, and then to the second overlapping part 21, the second overlapping part 21 transfers the force to the support provided on the side where the second rail beam 2 is located, In this way, the support for the second rail beam 2 and the first rail beam 1 can be realized.
  • the arrangement of the connecting assembly 3 can enable the first rail beam 1 and the second rail beam 2 to directly transmit the downward direction along the top-to-bottom direction.
  • the load that is, the direction of the load and the direction of the load transfer are roughly the same, so that the rail beam 100 can release the bending moment in the extension direction at the joint of the first rail beam 1 and the second rail beam 2, and can release the up and down direction. Bending moment constraints. Therefore, compared with the connecting assembly 3 that connects the first rail beam 1 and the second rail beam 2 laterally (along the extension direction of the rail beam 100), the structural arrangement of the connecting assembly 3 in the present application is beneficial to reduce the deformation of the rail beam 100.
  • the reliability of the structure of the track beam 100 is improved.
  • the installation difficulty of connecting the connecting assembly 3 with the first track beam 1 and the second track beam 2 can be reduced, and the installation process of the connecting assembly 3 can be simplified.
  • the connecting assembly 3 when the connecting assembly 3 is connected with the first rail beam 1 and/or the second rail beam 2 by bolts, it is beneficial to reduce the number of bolts.
  • the extending direction of the joint between the first rail beam 1 and the second rail beam 2 may be the left-right direction in FIG. 1.
  • one end of the first rail beam 1 has a first overlap portion 11
  • one end of the second rail beam 2 has a second overlap portion 21, and the second overlap portion 21 overlaps Below the first overlap portion 11.
  • the upper part of the connecting assembly 3 is connected to the first overlapping part 11, and the lower part of the connecting assembly 3 is connected to the second overlapping part 21, so that the first overlapping part 11 and the second overlapping part 21 are connected through the connecting assembly 3. Therefore, the manufacturing process and installation difficulty of the rail beam 100 can be simplified, the manufacturing cost of the rail beam 100 can be reduced, and the structural reliability of the rail beam 100 can be improved.
  • the first rail beam 1 and the second rail beam 2 are both I-shaped steel beams, and one end of the web 13 of the first rail beam 1 A first notch 12 is formed.
  • the part of the first rail beam 1 above the first notch 12 is the first lap 11, and one end of the web 23 of the second rail beam 2 is formed with a second notch 22, and the second rail beam 2
  • the part below the second notch 22 is the second lap portion 21, wherein the first lap portion 11 is inserted into the second notch 22 so as to be located above the second lap portion 21, and the second lap portion 21 is inserted It is arranged in the first notch 12 to be located below the first overlapping portion 11. It can be seen from this that the first overlap portion 11 and the second overlap portion 21 are generally embedded structures.
  • the second overlap portion 21 can support the first overlap portion 11 to a certain extent, so that the first overlap portion 11 and the second overlap portion 21 are Cooperate to form two lines of defense to prevent the rail beam 100 from failing immediately after the failure of the connecting assembly 3, and improve the safety and reliability of the rail transit system 1000. Moreover, it is beneficial to make the structure of the first track beam 1 and the second track beam 2 reliable, and make the overall structure of the track beam 100 smoother, and facilitate the train 200 to run more smoothly.
  • an end of the first rail beam 1 close to the second rail beam 2 is recessed toward a side away from the second rail beam 2 to define a first gap 12, and an end of the second rail beam 2 close to the first rail beam 1 faces A side away from the first rail beam 1 is recessed to define a second gap 22.
  • the size of the first notch 12 is larger than that of the second lap portion 21, and the size of the second notch 22 is larger than that of the first lap portion 11. Therefore, after the first rail beam 1 and the second rail beam 2 are overlapped and matched, a certain space can be reserved for the thermal expansion and contraction of the first rail beam 1 and the second rail beam 2, thereby improving the reliability of the rail beam 100 .
  • the connecting component 3 is fixedly connected to one of the first overlapping portion 11 and the second overlapping portion 21, and the connecting component 3 is fixedly connected to one of the first overlapping portion 11 and the second overlapping portion 21.
  • Another active connection As a result, the overall assembly method of the track beam 100 is simple and reliable, and at the same time, it is beneficial to simplify the installation process and difficulty of the connecting assembly 3, and improve the assembly efficiency of the track beam 100.
  • the upper part of the connecting assembly 3 is fixedly connected to the first overlapping portion 11 through a high-strength bolt 7, and the lower part of the connecting assembly 3 is connected to the second overlapping portion through a rotating pin 5a.
  • the sliding direction of the rotating pin shaft 5a is the extending direction of the rail beam 100 at the joint of the first rail beam 1 and the second rail beam 2.
  • connection assembly 3 Reliability, and easy to assemble the connection assembly 3.
  • the connecting assembly 3 can be moved between the first rail beam 1 and the second rail beam 2
  • the track beam 2 slides when it undergoes thermal expansion and contraction, which improves the reliability of the connecting assembly 3 and improves the reliability of the track beam 100.
  • the first track beam 1 can also transmit Y-direction load by rotating the pin shaft 5a (Y-direction refers to the direction perpendicular to the up and down direction and perpendicular to the track beam 100 at the joint between the first track beam 1 and the second track beam 2 Extension direction), and then release the Y-direction bending moment constraint.
  • Y-direction refers to the direction perpendicular to the up and down direction and perpendicular to the track beam 100 at the joint between the first track beam 1 and the second track beam 2 Extension direction
  • the connecting assembly 3 includes two connecting plates 31, and the first overlapping portion 11 and the second overlapping portion 21 are both sandwiched between the two connecting plates 31. , And the first overlap portion 11 and the second overlap portion 21 are connected to the two connecting plates 31 respectively. It can be seen that the connecting assembly 3 is connected to the first rail beam 1 and the second rail beam 2 through two connecting plates 31. In addition, since there are two connecting plates 31 and the first overlapping portion 11 and the second overlapping portion 21 are sandwiched between the two connecting plates 31, it is beneficial to improve the connection assembly 3 and the first overlapping portion 11 and the second overlapping portion. The reliability of the connection between the two overlapping parts 21 improves the structural strength of the connection between the connecting assembly 3 and the first rail beam 1 and the second rail beam 2, and improves the structural reliability of the rail beam 100.
  • the first overlapping portion 11 has a first connecting hole 11a
  • the second overlapping portion 21 has a second connecting hole 21a.
  • Each connecting plate 31 has a first mating hole 31a and a second mating hole 31b, and the upper part of the connecting assembly 3 is connected to the first lap through the first connecting piece 4 penetrated through the first mating hole 31a and the first connecting hole 11a
  • the connecting part 11 is connected, and the lower part of the connecting assembly 3 is connected to the second overlapping part 21 through the second connecting member 5 that penetrates the second mating hole 31b and the second connecting hole 21a.
  • the first connecting holes 11a and the first mating holes 31a have the same number and are opposite in position, and the first connecting member 4 is penetrated through the first connecting holes 11a and 31a.
  • the threaded connection of the first mating hole 31a It can be seen from this that the number of the first connecting members 4 can also be the same as the number of the first connecting holes 11a, and each first connecting member 4 passes through a pair of first connecting holes 11a and first matching holes 31a corresponding to each other in turn.
  • the first connecting piece 4 is a threaded connecting piece, which can ensure the reliability of the first connecting piece 4 connecting the first overlapping portion 11 and the connecting assembly 3.
  • the connecting process is simple and easy to operate, and the operator can operate it, and the technicality is low. .
  • the source of the first connecting member 4 is wide, and the cost is low. This is beneficial to improve the assembly efficiency of the rail beam 100 and reduce the manufacturing cost of the rail beam 100.
  • the first connecting member 4 may also be other structural members, as long as the reliability of the first connecting member 4 connecting the first rail beam 1 and the connecting assembly 3 is ensured.
  • the connecting assembly 3 further includes: a first pad 32, the first pad 32 is two, and each connecting board 31 is connected to the first pad 32.
  • a first backing plate 32 is provided between the overlapping parts 11 respectively.
  • the first backing plate 32 is installed on the first overlapping part 11 or the connecting plate 31.
  • the first backing plate 32 has a first through hole 32a.
  • the via holes 32a, the first connecting holes 11a, and the first mating holes 31a have the same number and are opposite in position, and the first connecting member 4 penetrates the first connecting holes 11a, the first via holes 32a, and the first mating holes 31a.
  • the provision of the first backing plate 32 can improve the connection strength and reliability of the connection assembly 3 and the first overlap portion 11 to a certain extent, thereby improving the reliability of the track beam 100.
  • the structure of the first via 32a is arranged so that the addition of the first backing plate 32 will not increase the difficulty of the connecting assembly 3 and the first overlapping portion 11 in the assembly process.
  • the first backing plate 32 is welded to the corresponding connecting plate 31. This facilitates the installation of the connection assembly 3.
  • the second connecting hole 21a is a sliding hole
  • the second connecting member 5 is a rotation hole that passes through the second connecting hole 21a and the second mating hole 31b.
  • the pin shaft 5a and the rotating pin shaft 5a are slidable along the extending direction of the second connecting hole 21a. Therefore, it can be seen that the limitation of the second connecting member 5 as the rotation pin shaft 5 a is not only beneficial to ensure the reliability of the cooperation between the connecting assembly 3 and the second overlapping portion 21, but also facilitates the assembly of the connecting assembly 3.
  • the connecting plate 31 can rotate relative to the rotating pin shaft 5a, which is beneficial for the first track beam 1 to release the track beam 100 on the first track.
  • the bending moment in the extending direction of the joint between the beam 1 and the second rail beam 2 reduces the deformation of the rail beam 100 and improves the reliability of the rail beam 100.
  • the first rail beam 1 can also transmit Y-direction load to the second rail beam 2 by rotating the pin shaft 5a (Y-direction refers to the vertical and up-down direction and perpendicular to the rail beam 100 in the first rail beam 1 and the second rail beam 2), and then release the Y-direction bending moment constraint.
  • the rotating pin shaft 5a may be a split pin, but it is not limited to this.
  • the connecting assembly 3 can be adapted to the deformation of the first rail beam 1 and the second rail beam 2 within a certain range, and the connecting assembly 3 can be improved.
  • the reliability of the track beam 100 is improved.
  • the extension direction of the second connecting hole 21a is the extension direction of the rail beam 100 at the joint of the first rail beam 1 and the second rail beam 2, so that the connecting assembly 3 can be connected to the first rail beam 1 and the second rail beam.
  • the second track beam 2 slides when it undergoes thermal expansion and contraction, which improves the reliability of the connecting assembly 3 and improves the reliability of the track beam 100.
  • the connecting assembly 3 further includes: a second pad 33, the second pad 33 is two, each connecting plate 31 and the second A second backing plate 33 is provided between the overlapping parts 21, and the second backing plate 33 is installed on the second overlapping part 21.
  • the second backing plate 33 has a second through hole 33a, and the second through hole 33a is connected to the
  • the second connecting holes 21a have the same shape and opposite positions.
  • the second connecting member 5 penetrates the second connecting hole 21a, the second via 33a, and the second mating hole 31b, and runs along the second via 33a and the second connecting hole. 21a slippage.
  • the provision of the second backing plate 33 can improve the connection strength and reliability of the connection assembly 3 and the second overlap portion 21 to a certain extent, thereby improving the reliability of the track beam 100.
  • the structure of the second via 33a is arranged so that the addition of the second backing plate 33 will not increase the difficulty of the connection assembly process of the connecting assembly 3 and the second lap 21.
  • the second backing plate 33 is welded to the web 23 of the second rail beam 2. This facilitates the installation of the connecting assembly 3, and makes the way of installing the second backing plate 33 on the second overlapping portion 21 simple and reliable.
  • the connecting assembly 3 further includes: a first wrapping member 34 that at least wraps the sliding mating surface 211 of the second connecting hole 21 a. Therefore, when the rotating pin 5a slides in the second connecting hole 21a, the arrangement of the first wrapping member 34 can effectively prevent the rotating pin 5a from contacting the sliding mating surface 211 of the second connecting hole 21a, and thus can be fixed at a certain distance. To a certain extent, the frictional force generated when the rotating pin 5a slips in the second connecting hole 21a is reduced.
  • the first wrapping member 34 may be a stainless steel sleeve. Since the surface of the stainless steel material is relatively smooth and flat, it is beneficial to reduce the occurrence of slippage of the rotating pin 5a in the second connecting hole 21a. Friction.
  • the stainless steel sleeve as the first wrapping member 34 may be formed substantially in a U shape. Therefore, the structure of the stainless steel sleeve is simple, and it is convenient for the stainless steel sleeve to wrap the sliding mating surface 211 of the second connecting hole 21a.
  • the closed end of the U-shaped stainless steel sleeve can be wrapped on the sliding mating surface 211 of the second connecting hole 21a, and the opposite side walls of the U-shaped stainless steel sleeve can be sandwiched on both sides of the second backing plate 33, respectively. And the ends of the two side walls away from the second connecting hole 21a are respectively bent toward the direction of approaching each other so as to be clamped on the outer edge of the second backing plate 33. As a result, the frictional force generated when the rotating pin 5a slides in the second connecting hole 21a can be reduced to a certain extent, and at the same time, the installation and removal of the first wrapping member 34 can be facilitated.
  • the connecting assembly 3 further includes: a slider 35, the slider 35 is sleeved outside the second connecting member 5 and penetrates through The second connecting hole 21a is to slide along the second connecting hole 21a. Therefore, it can be seen that the slider 35 can slide along the second connecting hole 21a at the same time as the second connecting member 5 (for example, the rotating pin shaft 5a mentioned above). At the same time, since the slider 35 is sleeved outside the second connecting member 5, it is advantageous to fix the position of the rotating pin shaft 5a in the axial direction. Improve the reliability of the connection assembly 3.
  • the connecting assembly 3 further includes: a second wrapping member 36, and the second wrapping member 36 at least wraps the sliding mating surface 351 of the slider 35.
  • This can effectively prevent the slider 35 from directly contacting the sliding mating surface 211 of the second connecting hole 21a when sliding in the second connecting hole 21a, thereby reducing the rotation pin 5a in the second through hole to a certain extent.
  • the second wrapper 36 is a polytetrafluoroethylene plate.
  • the thickness of the polytetrafluoroethylene plate may be 1 mm.
  • the connecting assembly 3 further includes: a lock pin 37.
  • a lock pin 37 There are two lock pins 37 and are respectively locked and inserted at both ends of the second connecting member 5, and two connecting plates 31 Located between the two locking pins 37. Therefore, the position of the second connecting member 5 (for example, the above-mentioned rotating pin shaft 5a) in the axial direction can be effectively fixed, and the structure of the connecting assembly 3 can be reliable. It is convenient for the first rail beam 1 and the second rail beam 2 to transfer the Y-direction load through the rotating pin shaft 5a.
  • the lock pin 37 may be a split pin, but is not limited to this.
  • connection assembly 3 further includes: a third backing plate 38, the third backing plate 38 is sleeved on the rotating pin shaft 5a, and the third backing plate 38 is two A third backing plate 38 is provided between each lock pin 37 and the connecting plate 31 respectively.
  • the reliability of the connection assembly 3 can be improved.
  • it can further limit the stability of the position of the rotating pin shaft 5a in the axial direction, and improve the reliability of the connecting assembly 3 being arranged on the track beam 100.
  • the holes not specifically described herein, such as the first connecting hole 11a, the first mating hole 31a, the second mating hole 31b, the first via 32a, etc. may all be round holes, etc., but not Limited to this.
  • the track beam 100 further includes: a joint pier 6 which is supported on the bottom of the second track beam 2 and is located at the bottom of the second track beam 2. There is one end of the second overlap portion 21. It can be seen that the joint pier column 6 is equivalent to a support, the joint pier column 6 can effectively support the second track beam 2, and the pressure on the first track beam 1 can be transmitted to the second track beam 2 through the connecting assembly 3 , The second track beam 2 can be transferred to the joint pier 6 to realize the support of the joint pier 6 to the first track beam 1 and the second track beam 2.
  • the rail transit system 1000 includes a train 200 and the rail beam 100 according to the foregoing embodiment of the present application, and the train 200 runs along the rail beam 100.
  • the manufacturing process and installation difficulty of the rail beam 100 can be simplified, the manufacturing cost of the rail beam 100 can be reduced, and the rail beam 100 can be improved.
  • the reliability of the structure enables the train 200 to travel on the rail beam 100 reliably.

Abstract

L'invention concerne une poutre à rail (100) et un système de transport ferroviaire (1000) la comprenant, la poutre à rail (100) comprenant : une première poutre à rail (1), une extrémité de première poutre à rail (1) ayant une première partie de jonction (11) ; une seconde poutre à rail (2), une extrémité de seconde poutre à rail (2) ayant une seconde partie de jonction (21), la seconde partie de jonction (21) étant jointe sous la première partie de jonction (11) ; et un ensemble de raccordement (3) ; la partie supérieure de l'ensemble de raccordement (3) est reliée à la première partie de jonction (11), et la partie inférieure de l'ensemble de raccordement (3) est reliée à la seconde partie de jonction (21), de telle sorte que la première partie de jonction (11) et la seconde partie de jonction (21) sont reliées au moyen de l'ensemble de raccordement (3).
PCT/CN2020/118110 2019-09-30 2020-09-27 Poutre à rail et système de transport ferroviaire la comprenant WO2021063287A1 (fr)

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