WO2021063287A1

WO2021063287A1 - Track beam and rail transit system having same

Info

Publication number: WO2021063287A1
Application number: PCT/CN2020/118110
Authority: WO
Inventors: 杨靖; 王赛宁; 邱佳隆; 刘晓彤
Original assignee: 比亚迪股份有限公司
Priority date: 2019-09-30
Filing date: 2020-09-27
Publication date: 2021-04-08
Also published as: CN112575668A

Abstract

Provided are a track beam (100) and a rail transit system (1000) having same, the track beam (100) comprising: a first track beam (1), one end of the first track beam (1) having a first joining part (11); a second track beam (2), one end of the second rail beam (2) having a second joining part (21), the second joining part (21) being joined beneath the first joining part (11); and a connection assembly (3); the upper part of the connection assembly (3) is connected to the first joining part (11), and the lower part of the connection assembly (3) is connected to the second joining part (21), such that the first joining part (11) and the second joining part (21) are connected by means of the connection assembly (3).

Description

Rail beam and rail transit system with the same

Cross-references to related applications

This application is based on a Chinese patent application with application number 201910943840.4 and an application date of September 30, 2019, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference into this application.

Technical field

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.

Background technique

In the track beam of the related art, 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. Generally, 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.

Summary of the invention

This application aims to solve at least one of the technical problems existing in the prior art. To this end, 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.

According to the rail beam of the embodiment of the present application, one end of the first rail beam has a first overlap portion, and one end of the second rail beam has a second overlap portion, and the second overlap portion overlaps the first overlap portion Below. The upper part of the connecting assembly is connected with the first overlapping part, and 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. As a result, the manufacturing process and installation difficulty of the track beam can be simplified, the manufacturing cost of the track beam can be reduced, and the structural reliability of the track beam can be improved.

According to some embodiments of the present application, 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.

According to some embodiments of the present application, 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 other active connection in the two overlapping parts.

In some embodiments of the present application, 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.

According to some embodiments of the present application, 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.

In some embodiments of the present application, the first overlapping portion has a first connecting hole, the second overlapping portion has a second connecting hole, and each of the connecting plates has a first matching hole. And a second mating 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, and 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.

In an embodiment, 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.

In an embodiment, the 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.

In some embodiments of the present application, 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, and the The rotating pin shaft is slidable along the extending direction of the second connecting hole.

In an embodiment, the 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.

In an embodiment, the connection assembly further includes: a first wrapper, and the first wrapper wraps at least the sliding mating surface of the second connection hole.

Specifically, the first wrapper is a stainless steel sleeve.

In some embodiments of the present application, 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.

In the embodiment of the present application, the connecting assembly further includes: a second wrapper, and the second wrapper wraps at least the sliding mating surface of the slider.

Specifically, the second wrapper is a polytetrafluoroethylene board.

In some embodiments of the present application, 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.

In some embodiments of the present application, 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.

According to some embodiments of the present application, 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 according to the embodiment of the present application includes a train and the rail beam according to the foregoing embodiment of the present application, and the train runs along the rail beam.

According to the rail transit system of the embodiment of the present application, by providing the rail beam according to the above-mentioned embodiment of the present application, 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.

Description of the drawings

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.

Reference signs:

Track beam 100;

The first track beam 1; the first overlapping portion 11; the first connecting hole 11a; the first gap 12;

The web 13 of the first track beam;

The second track beam 2; the second overlapping portion 21; the second connecting hole 21a; the sliding mating surface 211 of the second connecting hole;

The second gap 22; the web 23 of the second track beam;

Connection component 3;

Connecting plate 31; first mating hole 31a; second mating hole 31b;

First pad 32; first via 32a;

Second pad 33; second via 33a;

The first package 34; the slider 35; the sliding mating surface 351 of the slider;

The second package 36; the lock pin 37; the third backing plate 38;

The first connecting piece 4; the second connecting piece 5; the pivot pin 5a; the joint pier 6; the high-strength bolt 7;

Rail transit system 1000; train 200.

Detailed ways

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present application, and should not be understood as a limitation to the present application.

In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "Radial", "Circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying the pointed device or The element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this application, unless otherwise specified, "plurality" means two or more.

In the description of this application, it should be noted that the terms "installation", "connection", and "connection" should be understood in a broad sense, unless otherwise clearly specified and limited. For example, 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. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood under specific circumstances.

Hereinafter, the track beam 100 according to the embodiment of the present application will be described with reference to FIGS. 1 to 14.

As shown in FIG. 1 to FIG. 14, the track beam 100 according to the embodiment of the present application includes: a first track beam 1, a second track beam 2 and a connecting component 3.

Specifically, one end of the first rail beam 1 has a first overlap portion 11, and 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. Below. 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.

It can be seen from this that a connecting component 3 is provided at the joint of the first rail beam 1 and the second rail beam 2 to connect the first rail beam 1 and the second rail beam 2. Therefore, compared with the prior art, 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.

It is known that 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. In this way, 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. When the train 200 travels to the first track beam 1 and the second track beam 2 At the joint, 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. At the same time, 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.

At the same time, it can be seen that most of the direction of the pressure of the train 200 received by the first rail beam 1 is downward, and the first rail beam 1 transmits the downward pressure received to the second rail beam 2 through the connecting assembly 3, and then The second rail beam 2 is transferred to the support. It is known that 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. It can be seen that, in the track beam 100 of the embodiment of the present application, 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.

It can be seen from this that in the rail beam 100 of the embodiment of the present application, 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. At the same time, 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. For example, 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. It should be noted that, in the specific embodiment of the present application, 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.

According to the rail beam 100 of the embodiment of the present application, 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.

As shown in Figures 1 and 4-6, according to some embodiments of the present application, 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.

This not only ensures that when the connecting assembly 3 fails, 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.

Optionally, 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. Optionally, 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 .

According to some embodiments of the present application, 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.

As shown in FIG. 1, in some embodiments of the present application, 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. 21 Sliding connection, 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. It can be seen that the selection of the high-strength bolt 7 can effectively ensure the reliability of the fixed connection between the connecting assembly 3 and the first overlap portion 11, and the selection of the rotation pin 5a is not only beneficial to ensure that the connection assembly 3 and the second overlap portion 21 cooperate with each other. Reliability, and easy to assemble the connection assembly 3. At the same time, since the sliding direction of the rotating pin shaft 5a is the extension direction of the rail beam 100 at the joint of the first rail beam 1 and the second rail beam 2, 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. And 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.

As shown in Figures 2 and 3, according to some embodiments of the present application, 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.

As shown in Figures 4, 5 and 8, in some embodiments of the present application, the first overlapping portion 11 has a first connecting hole 11a, and 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. It can be seen that the connection mode of the connecting assembly 3 with the first overlap portion 11 and the second overlap portion 21 is simple and reliable, and the operation process of connection and disassembly is simple.

In one embodiment, as shown in FIGS. 1, 4, and 8, 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. In order to reliably connect the connecting assembly 3 with the first overlapping portion 11. 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. . In addition, 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. Of course, it should be noted that 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.

In an embodiment, as shown in FIGS. 3, 4, 8 and 9, 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. It can be seen that 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. At the same time, 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. Optionally, the first backing plate 32 is welded to the corresponding connecting plate 31. This facilitates the installation of the connection assembly 3.

As shown in FIGS. 5 and 7, in some embodiments of the present application, the second connecting hole 21a is a sliding hole, and 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. At the same time, it can be seen that when the rotating pin shaft 5a slips, or when the first track beam 1 receives a force, 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. And 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.

At the same time, because the rotating pin 5a can slide along the extension direction of the second connecting hole 21a, 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. Optionally, 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.

In an embodiment, as shown in Figures 2, 6, 7, and 10, 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. Therefore, it can be seen that 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. At the same time, 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. Optionally, 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.

In an embodiment, as shown in FIGS. 7 and 11, 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. Optionally, there may be two first wrapping members 34 and they are used to respectively wrap the upper and lower sliding mating surfaces 211 of the second connecting hole 21a.

For example, in the specific example shown in FIG. 11, 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. In addition, as shown in FIG. 11, 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.

With reference to Fig. 7, 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.

As shown in Figure 2, Figure 6, Figure 12 and Figure 13, in some embodiments of the present application, 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.

As shown in FIGS. 6 and 12, in the embodiment of the present application, 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 friction generated when slipping in 33a. Optionally, the second wrapper 36 is a polytetrafluoroethylene plate. It is known that polytetrafluoroethylene has corrosion resistance and high lubrication and non-stick properties, which can effectively reduce the friction force generated when the slider 35 slips in the second connecting hole 21a, and improve the reliability of the second wrapper 36 . Among them, the thickness of the polytetrafluoroethylene plate may be 1 mm.

As shown in FIG. 13, in some embodiments of the present application, the connecting assembly 3 further includes: 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.

As shown in Figures 2 and 13, in some embodiments of the present application, the 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. Thus, the reliability of the connection assembly 3 can be improved. At the same time, 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. In addition, it should be noted that 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.

As shown in FIG. 14, according to some embodiments of the present application, 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.

As shown in FIG. 14, the rail transit system 1000 according to the embodiment of the present application 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.

According to the rail transit system 1000 of the embodiment of the present application, by providing the rail beam 100 according to the above-mentioned embodiment of the present application, 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.

Other configurations and operations of the rail transit system 1000 according to the embodiment of the present application are known to those of ordinary skill in the art, and will not be described in detail here.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples" etc. means to incorporate the implementation The specific features, structures, materials, or characteristics described by the examples or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principle and purpose of the present application. The scope of the application is defined by the claims and their equivalents.

Claims

A track beam is characterized in that it comprises:

A first rail beam, one end of the first rail beam has a first overlapping portion;

A second rail beam, one end of the second rail beam has a second overlap portion, the second overlap portion is overlapped below the first overlap portion; and

Connecting assembly, the upper part of the connecting assembly is connected to the first overlapping part, and the lower part of the connecting assembly is connected to the second overlapping part, so that the first overlapping part is connected to the second overlapping part The connecting part is connected by the connecting component.
The track beam according to claim 1, wherein the first track beam and the second track beam are both I-shaped steel beams, and one end of the web of the first track beam is formed with a first A gap, the part of the first 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 The part below the second notch is the second lap portion, wherein the first lap portion is inserted into the second notch so as to be located above the second lap portion, and the second The overlapping portion is inserted into the first notch so as to be located below the first overlapping portion.
The track beam according to any one of claims 1-2, wherein the connecting component is fixedly connected to one of the first overlapping portion and the second overlapping portion, and the connecting component It is movably connected to the other of the first overlap portion and the second overlap portion.
The track beam according to claim 3, wherein 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 connected to the second overlapping part by a rotating pin. The connecting portion is slidingly connected, and the sliding direction of the rotating pin shaft is the extending direction of the rail beam at the joint of the first rail beam and the second rail beam.
The track beam according to any one of claims 1-4, wherein the connecting assembly comprises:

Two connecting plates, the first overlapping portion and the second overlapping portion are both sandwiched between the two connecting plates, and the first overlapping portion and the second overlapping portion are respectively Connected to the two connecting boards.
The track beam according to claim 5, wherein the first lap portion has a first connection hole, the second lap portion has a second connection hole, and each of the connecting plates has a first connection hole. It has a first mating hole and a second mating hole, and the upper part of the connecting component is connected to the first lap portion through a first connecting piece that passes through the first mating hole and the first connecting hole, so The lower part of the connecting assembly is connected to the second lap portion through a second connecting piece that passes through the second matching hole and the second connecting hole.
The track beam according to claim 6, wherein the number of the first connecting holes and the first matching holes are the same and the positions are opposite, and the first connecting member is inserted through the first connecting hole and the first matching hole. The threaded connection piece of the first mating hole.
The track beam according to claim 7, wherein the connecting assembly further comprises:

There are two first backing plates, and one first backing plate is provided between each connecting plate and the first overlapping part, and the first backing plate is installed on The first lap portion or the connecting plate, the first backing plate has a first via hole, and the number of the first via hole, the first connecting hole, and the first matching hole are the same And the position is relatively, the first connecting member penetrates through the first connecting hole, the first via hole and the first matching hole.
The track beam according to claim 6, wherein the second connecting hole is a sliding hole, and the second connecting member is a rotation hole that passes through the second connecting hole and the second matching hole. The pin shaft is slidable along the extension direction of the second connecting hole.
The track beam according to claim 9, wherein the connecting assembly further comprises:

There are two second backing plates, and one second backing plate is provided between each connecting plate and the second overlapping part, and the second backing plate is installed on On the second lap portion, the second backing plate has a second via hole, the second via hole and the second connecting hole have the same shape and are opposite in position, and the second connecting member penetrates At the second connecting hole, the second via hole and the second mating hole, and sliding along the second via hole and the second connecting hole.
The track beam according to claim 9, wherein the connecting assembly further comprises:

The first wrapper, the first wrapper wraps at least the sliding mating surface of the second connecting hole.
The track beam according to claim 11, wherein the first wrapping member is a stainless steel sleeve.
The track beam according to claim 9, wherein the connecting assembly further comprises:

The sliding block, the sliding block is sleeved on the outside of the second connecting member and passes through the second connecting hole, so as to slide along the second connecting hole.
The track beam according to claim 13, wherein the connecting assembly further comprises:

The second wrapper, the second wrapper wraps at least the sliding mating surface of the slider.
The track beam according to claim 14, wherein the second wrapping member is a polytetrafluoroethylene plate.
The track beam according to claim 9, wherein the connecting assembly further comprises:

There are two lock pins, and the two lock pins are respectively locked and inserted at two ends of the second connecting member, and the two connecting plates are located between the two lock pins.
The track beam according to claim 16, wherein the connecting assembly further comprises:

A third backing plate, the third backing plate is sleeved on the rotating pin shaft, there are two third backing plates, and each of the locking pins and the connecting plate is provided with a second backing plate. Three pads.
The track beam according to any one of claims 1-17, further comprising:

The joint pier is supported on the bottom of the second rail beam and is located at one end of the second rail beam where the second overlap portion is provided.
A rail transit system, characterized by comprising a train and the track beam according to any one of claims 1-18, and the train runs along the track beam.