CN212223473U - Connecting structure for steel rail - Google Patents
Connecting structure for steel rail Download PDFInfo
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- CN212223473U CN212223473U CN202020249174.2U CN202020249174U CN212223473U CN 212223473 U CN212223473 U CN 212223473U CN 202020249174 U CN202020249174 U CN 202020249174U CN 212223473 U CN212223473 U CN 212223473U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 207
- 239000010959 steel Substances 0.000 title claims abstract description 207
- 238000000926 separation method Methods 0.000 claims abstract description 63
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of steel rail connection, and discloses a connection structure for steel rails, which comprises a first steel rail, a second steel rail and a connecting piece for connecting the first steel rail and the second steel rail; a plurality of separation steel rails are arranged between the end part of the first steel rail and the end part of the second steel rail, and separation seams are formed between the end part of the first steel rail and the adjacent separation steel rail, between two adjacent separation steel rails and between the end part of the second steel rail and the adjacent separation steel rail; the connecting structure further comprises a connecting device used for enabling the separation steel rail to move along the running direction of the steel rail when the first steel rail and/or the second steel rail stretches and contracts. The utility model provides a connection structure separates for a plurality of parting joint through separating the rail with original expansion joint between first rail and the second rail, realizes separating original macrostoma for a plurality of slit to realize the seamless processing of different rail junctions, reduce the impact of rail to rail vehicle, noise reduction improves rail vehicle's stability.
Description
Technical Field
The utility model relates to a technical field is connected to the rail, particularly, relates to a connection structure for rail.
Background
In the track traffic system, the track that supplies rail vehicle operation often is formed by the concatenation of the different rail of a plurality of sections, and when the process of laying the rail in reality, considers that rail self has expend with heat and contract with cold's phenomenon, consequently often can predetermine an expansion joint between two different rails. However, the mode that sets up the expansion joint appears the vibration when there is rail vehicle to pass through the expansion joint easily, and is also great and can produce the noise to rail vehicle's impact, can not guarantee rail vehicle's stationarity. Therefore, a seamless rail is designed in the existing ground rail traffic system, namely seamless treatment is realized between two different steel rails, the stress generated when the steel rails expand with heat and contract with cold is transferred to the ground or a concrete beam through an elastic fastener at the joint of the two steel rails, and the stress is released once after a certain time, so that the rail vehicle can be stably transited from one steel rail to the other steel rail. However, because the stress generated by the steel rails in the seamless track is large, and for the air track traffic system, the steel rails are laid on the track beams, and the bearing capacity of the track beams is limited, the seamless track is not suitable for the air track traffic system.
For this reason, utility model people adopted its prior application in advance, and a telescopic connector of application number "201720944067X" was applied to the connection between two different rails in the air rail transit system. However, the utility model discloses a further research finds that the telescopic connector disclosed in this prior application is applied to a power supply rail, while the telescopic connector applied to a power supply rail is mainly used for electrical conduction and mechanical transition, which has practically no bearing capacity, and the steel rail in the aerial rail system needs to bear all loads from the rail vehicle and its load components. Therefore, the above-mentioned solution cannot be applied to an air rail transit system. Therefore, the utility model discloses the people is in advance to make further improvement on the basis of this prior application, designs a rail connection structure who is applied to aerial track traffic system.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a connection structure for rail for handle predetermined expansion joint between the different rail in the air rail transit system, improve the stability when rail vehicle moves.
The embodiment of the utility model discloses a realize through following technical scheme:
a connecting structure for steel rails comprises a first steel rail, a second steel rail and a connecting piece for connecting the first steel rail and the second steel rail;
a plurality of separation steel rails are arranged between the end part of the first steel rail and the end part of the second steel rail, and separation seams are formed between the end part of the first steel rail and the adjacent separation steel rail, between two adjacent separation steel rails and between the end part of the second steel rail and the adjacent separation steel rail;
the connecting structure further comprises a connecting device for moving the separating rail in the rail running direction when the first rail and/or the second rail is/are extended and retracted.
Through the arrangement, the original expansion joint between the first steel rail and the second steel rail is divided into a plurality of separation joints through the separation steel rail, the original large joint is divided into a plurality of small joints, when the first steel rail or the second steel rail generates expansion caused by heat and contraction caused by cold, the plurality of separation steel rails are driven to move along the traveling direction of the steel rails through the connecting device, the separation joints are further reduced until the separation joints are eliminated, seamless treatment of joints of different steel rails is realized, impact of the steel rails on the rail vehicle is reduced, noise is reduced, and the stability of the rail vehicle is improved; meanwhile, the connecting piece is additionally arranged to connect the first steel rail and the second steel rail, so that the bearing capacity of the connecting structure is improved, the connecting structure can be suitable for an air rail transit system, and the passing of rail vehicles with large loads is met.
Optionally, the connecting piece includes a pair of fishplates disposed on two sides of the first steel rail and the second steel rail, the upper and lower sides of the fishplates are abutted to the upper and lower sides of the side wall of the steel rail, bolts are inserted into the fishplates, and the first steel rail and the fishplates, and the second steel rail and the fishplates are connected through the bolts;
the connecting piece further comprises a bearing device, and the bearing device is arranged at the bottom of the first steel rail and the bottom of the second steel rail.
Optionally, the connecting device includes a plurality of link devices, and two adjacent steel rails are connected by the link devices.
Optionally, the link device includes a connecting block arranged on each steel rail, the center of each connecting block is hinged to the steel rail, and the end portions of two adjacent connecting blocks are hinged to each other.
Optionally, the connecting device includes a plurality of elastic units, each elastic unit includes fixing seats disposed on both sides of the separation gap and connected to the steel rail, and two adjacent fixing seats are connected to each other through a spring.
Optionally, a limiting hole for the bolt to pass through is formed in the first steel rail and/or the second steel rail along the telescopic direction of the first steel rail and/or the second steel rail.
Optionally, the center distance of the limiting hole is not less than the total expansion amount of the steel rail.
Optionally, the transverse section of the separation seam is rectangular, V-shaped or parallelogram.
Optionally, the number of the separation slits is not less than three.
Optionally, the length of the partition steel rail along the length direction of the steel rail is 30-300 mm.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
the utility model provides a connection structure, through separating original expansion joint between first rail and the second rail for a plurality of parting joint through separating the rail, realize separating original big joint for a plurality of slit, when first rail or second rail take place expend with heat and contract with cold the phenomenon, drive a plurality of through connecting device and separate the rail and move towards same direction, realize further reducing the parting joint until eliminating the parting joint, realize the seamless processing of different rail junctions, reduce the impact of rail to rail vehicle, the noise reduction improves rail vehicle's stability; meanwhile, the connecting piece is additionally arranged to connect the first steel rail and the second steel rail, so that the bearing capacity of the connecting structure is improved, the connecting structure can be suitable for an air rail transit system, and the passing of rail vehicles with large loads is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a connection structure provided in embodiment 1 of the present invention;
fig. 2 is a top view of the connection structure provided in embodiment 1 of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is a bottom view of the connection structure provided in embodiment 1 of the present invention;
fig. 5 is a bottom view of the connection structure provided in embodiment 1 of the present invention in another state;
fig. 6 is a bottom view of the connection structure provided in embodiment 2 of the present invention;
fig. 7 is a schematic view of an internal structure of a connection structure provided in embodiment 1 of the present invention;
fig. 8 is a schematic structural view of different separation seams provided in embodiment 1 of the present invention.
Icon: 1-a first rail, 2-a second rail, 3-a separation rail, 4-a separation seam, 5-a connecting rod device, 51-a connecting block, 6-an elastic unit, 61-a fixed seat, 62-a spring, 7-a fishplate, 8-a bolt, 9-a limiting hole, 10-a bearing device and 11-a track beam.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The embodiment of the utility model discloses a realize through following technical scheme:
referring to fig. 1 to 3, a connection structure for steel rails includes a first steel rail 1, a second steel rail 2, and a connector for connecting the first steel rail 1 and the second steel rail 2, wherein the connector improves the bearing capacity of a joint of two different steel rails, so that the connection structure can be applied to an air rail transit system; specifically, the connecting member in this embodiment includes a pair of fishplates 7 disposed on two sides of the first steel rail 1 and the second steel rail 2, and the fishplates 7 are in the prior art and are not described herein in any greater detail; the upper side and the lower side of the fishplate 7 are abutted with the upper side and the lower side of the side wall of the steel rail so as to improve the bearing capacity of the first steel rail 1 and the second steel rail 2, bolts 8 are inserted on the fishplate 7, and the first steel rail 1 and the fishplate 7, and the second steel rail 2 and the fishplate 7 are connected through the bolts 8; the connecting piece further comprises a bearing device 10 arranged at the bottom of the first steel rail 1 and the second steel rail 2, the bearing capacity of the connecting structure is further improved by arranging the bearing device 10 at the bottom of the steel rails, the bearing device 10 can be directly paved on a track beam 11, a bearing plate can be adopted for the specific bearing device 10, the specific structure and type of the bearing device 10 belong to the prior art, and redundant description is not repeated herein;
meanwhile, a plurality of separation steel rails 3 are arranged between the end part of the first steel rail 1 and the end part of the second steel rail 2, and separation seams 4 are formed between the end part of the first steel rail 1 and the adjacent separation steel rail 3, between two adjacent separation steel rails 3, and between the end part of the second steel rail 2 and the adjacent separation steel rail 3, so that the original expansion joint is divided into a plurality of small seams; in reference to practical situations, the number of the separating gaps 4 in the present embodiment is not less than three, and based on the total expansion and contraction amount of the steel rail under normal conditions, the total expansion and contraction amount is not more than 100mm, so in practical implementation, the above-mentioned separating gaps 4 should satisfy: the width of the separation seam 4 is less than or equal to the total expansion amount of the steel rail/the number of the separation seams 4; referring to fig. 8, the transverse section of the separating slit 4 may be rectangular, V-shaped or parallelogram, and the specific shape is not limited herein; in addition, the length of the partition rail 3 in the length direction of the rail in the embodiment is 30-300 mm;
the connection also comprises a connecting device for moving the separating rail 3 in the rail running direction when the first rail 1 and/or the second rail 2 are extended or retracted.
Through the aforesaid setting, separate original expansion joint between first rail 1 and the second rail 2 for a plurality of parting joint 4 through separating rail 3, realize separating original macrostoma for a plurality of slit, when first rail 1 and/or second rail 2 take place expend with heat and contract with cold the phenomenon, drive a plurality of through connecting device and separate rail 3 and walk the direction motion along the rail, concrete motion mode has three kinds of circumstances: the first condition is that the first steel rail 1 expands and contracts due to expansion and contraction, and the second steel rail 2 does not expand and contract due to contraction, at the moment, the first steel rail 1 drives the plurality of separation steel rails 3 to simultaneously move along the expansion direction of the first steel rail 1 through the connecting device; the second condition is that the first steel rail 1 does not expand with heat and contract with cold, and the second steel rail 2 expands with heat and contracts with cold, at the moment, the second steel rail 2 drives the plurality of separation steel rails 3 to simultaneously move along the expansion direction of the second steel rail 2 through the connecting device; the third situation is that the first steel rail 1 and the second steel rail 2 expand and contract due to the phenomenon of expansion and contraction at the same time, at the moment, the separation steel rail 3 positioned at the central position between the first steel rail 1 and the second steel rail 2 does not move, and the separation steel rail 3 is used as a boundary, so that the separation steel rail 3 between the first steel rail 1 and the separation steel rail 3 moves along the expansion direction of the first steel rail 1, and the separation steel rail 3 between the second steel rail 2 and the separation steel rail 3 moves along the expansion direction of the second steel rail 2; therefore, each separation seam 4 is further reduced until the separation seam 4 is eliminated, seamless treatment of the joint of two different steel rails is realized, the impact of the steel rails on the rail vehicle is reduced, the noise is reduced, and the stability of the rail vehicle is improved; meanwhile, the first steel rail 1 and the second steel rail 2 are connected by additionally arranging the connecting piece, so that the bearing capacity of the connecting structure is improved, the connecting structure can be suitable for an air track traffic system, and the passing of track vehicles with large loads is met.
In this embodiment, referring to fig. 4, the connecting device includes a plurality of link devices 5, and two adjacent rails are connected by the link devices 5; specifically, the connecting rod device 5 comprises connecting blocks 51 arranged on each steel rail, the centers of the connecting blocks 51 are hinged with the steel rails, the end parts of two adjacent connecting blocks 51 are hinged, and through the arrangement, when the first steel rail 1 and/or the second steel rail 2 expand with heat and contract with cold, the connecting blocks 51 connected with the first steel rail 1 or the second steel rail 2 move to drive the connecting blocks 51 connected with the connecting blocks to move, and similarly, a plurality of connecting blocks 51 move under the drive of the first connecting blocks 51, and the connecting blocks 51 drive the separation steel rails 3 connected with the connecting blocks to move, so that the width of the separation seam 4 is changed until the separation seam 4 is eliminated, seamless treatment of the joint of two different steel rails is realized, meanwhile, the centers of the connecting blocks 51 are hinged with the steel rails, and the end parts of the two connecting blocks 51 are hinged to realize that the width of each separation seam 4 is changed at equal intervals, when the rail vehicle passes through, the loads borne by each separation steel rail 3 are the same, and the stability of the rail vehicle during passing is further improved.
In this embodiment, referring to fig. 7, the first rail 1 and/or the second rail 2 are provided with a limiting hole 9 along the extending and contracting direction thereof for the bolt 8 to pass through, and here, the setting mode of the limiting hole 9 also has three cases, specifically: the first method is that a limiting hole 9 is arranged on a first steel rail 1, a fishplate 7 and the first steel rail 1 are connected by penetrating the limiting hole 9 through a bolt during implementation, and a second steel rail 2 is not provided with the limiting hole 9 and is directly fixedly connected by adopting the bolt, so that when the first steel rail 1 expands and contracts due to thermal expansion and cold contraction, the expansion amount is concentrated at the joint of the first steel rail 1 and the fishplate 7 for treatment; similarly, in the second type, a limit hole 9 is arranged on the second steel rail 2, the fishplate 7 and the second steel rail 2 are connected by penetrating the limit hole 9 through a bolt in the implementation process, the first steel rail 1 is not provided with the limit hole 9 and is directly fixedly connected by adopting the bolt, so that when the second steel rail 2 expands and contracts due to thermal expansion and cold contraction, the expansion amount is concentrated at the connection position of the second steel rail 2 and the fishplate 7 for treatment; thirdly, referring to fig. 5, both the first steel rail 1 and the second steel rail 2 are provided with a limit hole 9, both ends of the fishplate 7 are respectively fixed with the first steel rail 1 and the second steel rail 2 through a bolt passing through the limit hole 9 of the first steel rail 1 and a bolt passing through the limit hole 9 of the second steel rail 2, and the most central separation steel rail 3 between the first steel rail 1 and the second steel rail 2 is directly and fixedly connected with the fishplate 7, so that when the first steel rail 1 and the second steel rail 2 expand and contract due to thermal expansion and cold contraction, the two can drive the corresponding separation steel rail 3 to move through the connecting device, and the fishplate 7 is always in a bearing state; meanwhile, the center distance of the limiting holes 9 is not smaller than the total telescopic quantity of the steel rail, connection failure of the connecting device due to the fact that the limiting holes 9 are too small is avoided, and the connecting device cannot be used for driving the separation steel rail 3 to move.
Example 2
Referring to fig. 6, this embodiment is substantially the same as embodiment 1, except that the specific structure of the connecting device is different. Specifically, the connecting device comprises a plurality of elastic units 6, each elastic unit 6 comprises fixing seats 61 which are arranged on two sides of each separation seam 4 and connected with the corresponding steel rail, every two adjacent fixing seats 61 are connected through a spring 62, when the first steel rail 1 and/or the second steel rail 2 stretch out and draw back, the fixing seats 61 connected with the springs are driven to move, so that the springs 62 are driven to compress, when the springs 62 are compressed to the limit, the fixing seats 61 on the separation steel rails 3 are pushed to move, all the separation steel rails 3 are driven to move in sequence, and therefore the width of the separation seams 4 is reduced until the separation seams 4 are eliminated finally; meanwhile, the mode of the spring 62 can improve the stability of the separation steel rail 3 during movement, and the effect of vibration reduction is achieved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A connection structure for a steel rail, characterized in that: the steel rail comprises a first steel rail (1), a second steel rail (2) and a connecting piece for connecting the first steel rail (1) and the second steel rail (2);
a plurality of separation steel rails (3) are arranged between the end part of the first steel rail (1) and the end part of the second steel rail (2), and separation seams (4) are formed between the end part of the first steel rail (1) and the adjacent separation steel rail (3), between two adjacent separation steel rails (3) and between the end part of the second steel rail (2) and the adjacent separation steel rail (3);
the device also comprises a connecting device used for enabling the separation rail (3) to move along the rail running direction when the first rail (1) and/or the second rail (2) stretches and contracts.
2. The connecting structure for steel rails according to claim 1, wherein: the connecting piece comprises a pair of fishplates (7) arranged on two sides of the first steel rail (1) and the second steel rail (2), the upper side and the lower side of each fishplate (7) are abutted against the upper side and the lower side of the side wall of the steel rail, bolts (8) are inserted into the fishplates (7), and the first steel rail (1) and the fishplates (7) as well as the second steel rail (2) and the fishplates (7) are connected through the bolts (8);
the connecting piece further comprises a bearing device (10), and the bearing device (10) is arranged at the bottom of the first steel rail (1) and the bottom of the second steel rail (2).
3. The connecting structure for steel rails according to claim 1, wherein: the connecting device comprises a plurality of connecting rod devices (5), and two adjacent steel rails are connected through the connecting rod devices (5).
4. The connecting structure for steel rails according to claim 3, wherein: the connecting rod device (5) comprises connecting blocks (51) arranged on each steel rail, the centers of the connecting blocks (51) are hinged with the steel rails, and the end parts of two adjacent connecting blocks (51) are hinged.
5. The connecting structure for steel rails according to claim 1, wherein: the connecting device comprises a plurality of elastic units (6), the elastic units (6) comprise fixing seats (61) which are arranged on two sides of the separation gap (4) and connected with the steel rail, and two adjacent fixing seats (61) are connected through springs (62).
6. The connecting structure for steel rails according to claim 2, wherein: and a limiting hole (9) for the bolt (8) to pass through is formed in the first steel rail (1) and/or the second steel rail (2) along the telescopic direction of the first steel rail and/or the second steel rail.
7. The connecting structure for steel rails according to claim 6, wherein: the center distance of the limiting holes (9) is not less than the total telescopic quantity of the steel rail.
8. The connecting structure for steel rails according to claim 1, wherein: the transverse section of the separation seam (4) is rectangular, V-shaped or parallelogram.
9. The connecting structure for steel rails according to claim 1, wherein: the number of the separation seams (4) is not less than three.
10. The connecting structure for steel rails according to claim 1, wherein: the length of the separation steel rail (3) along the length direction of the steel rail is 30-300 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249174.2U CN212223473U (en) | 2020-03-03 | 2020-03-03 | Connecting structure for steel rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249174.2U CN212223473U (en) | 2020-03-03 | 2020-03-03 | Connecting structure for steel rail |
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| CN212223473U true CN212223473U (en) | 2020-12-25 |
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| CN202020249174.2U Active CN212223473U (en) | 2020-03-03 | 2020-03-03 | Connecting structure for steel rail |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172817A (en) * | 2020-03-03 | 2020-05-19 | 成都得佑轨道交通科技有限公司 | Connecting structure for steel rail |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172817A (en) * | 2020-03-03 | 2020-05-19 | 成都得佑轨道交通科技有限公司 | Connecting structure for steel rail |
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Effective date of registration: 20221012 Address after: 610000 No.10, unit 3, building 11, No.8, Xinguang Road, high tech Zone, Chengdu, Sichuan Patentee after: Zeng Jian Address before: No.706, No.705, North High Tech District, Chengdu Patentee before: Chengdu Deyou Rail Transit Technology Co.,Ltd. |