Novel steel rail telescopic regulator structure
By installing switch rails and hydraulic rail tensioning machines in ballasted tracks, the problem of rail deformation leading to derailment under extreme weather conditions was solved, and the stability of rails under extreme weather conditions was achieved.
Patent Information
- Application Number
- CN202520177453.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-27
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-27
AI Technical Summary
Existing ballasted tracks are prone to significant deformation under extreme weather conditions, leading to derailment.
A switch rail is installed between the base rail A and the base rail B, and a hydraulic rail tensioning machine is connected to it via a lead-out rail. The hydraulic rail tensioning machine is used to stretch the base rail A under extreme weather conditions to cope with the expansion and contraction deformation of the rail.
This effectively prevents rails from derailing due to expansion and contraction in extreme weather conditions, thus improving the rails' resistance to extreme weather.
Smart Images

Figure CN223706137U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the related technical field of rail expansion adjuster, concretely relates to a novel rail expansion adjuster structure. BACKGROUND
[0002] Rail expansion adjuster is also called temperature adjuster, which is a device for adjusting rail expansion. By setting rail expansion adjuster on the track, the relative displacement of the switch rail or the main rail can be used to adjust the expansion and contraction of the track. It is commonly used on large-span steel beam bridges, bridge heads and sections of seamless track where rail expansion needs to be adjusted. The rail expansion adjuster maintains the track gap from changing too much when the rail expands, thereby maintaining the smoothness of the track. On large-span railway bridges, especially on suspension bridges, the impact of structural expansion on the bridge deck should be considered, as well as the impact of angular displacement.
[0003] The existing ballast track technology has the following problems: when the ballast track is in use, if it encounters extreme weather, it is easy to deform greatly, which may cause derailment. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a novel rail expansion adjuster structure to solve the problem of derailment caused by the deformation of the ballast track in extreme weather.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] A novel rail expansion adjuster structure includes a sleeper, a small resistance fastener, a main rail A, a switch rail, a stretching lead rail, a hydraulic rail stretcher, a main rail B, a bridge guard rail and a basic fastener. The upper end of the sleeper is provided with a bridge guard rail. The upper end of the sleeper and the front and rear positions of the bridge guard rail are provided with a main rail B. The upper end of the sleeper and the left side of the main rail B are provided with a switch rail. The upper end of the sleeper and the outer side of the switch rail are provided with a main rail A. The right side of the main rail A is provided with a stretching lead rail. The right side of the stretching lead rail is provided with a hydraulic rail stretcher.
[0007] Preferably, two main rails A are provided with two gauge rods at the left side of the inner side. The gauge rod is composed of a bolt and a positioning rod body. The two ends of the positioning rod body are provided with a bolt. The main rail A and the positioning rod body are connected by the bolt.
[0008] Preferably, the upper end of the sleeper is provided with a sliding roller at the lower end of the main rail A.
[0009] Preferably, the basic rail B and the sleeper are fixedly connected through a basic fastener, and the basic rail A and the sleeper are movably connected through a small-resistance fastener.
[0010] Preferably, two bridge guard rails are arranged, and the two bridge guard rails are respectively located at the middle positions of the upper ends of the sleepers.
[0011] Preferably, the basic rail A and the stretch-out rail are in an integrated structure, and the basic rail A and the stretch-out rail are fixedly connected through welding.
[0012] Preferably, two hydraulic rail stretchers are arranged, and the two hydraulic rail stretchers are respectively located at the right sides of the stretch-out rails, the basic rail A and the hydraulic rail stretchers are connected through the stretch-out rails, and the hydraulic rail stretchers adopt railway special YLS-900 hydraulic rail stretchers.
[0013] Preferably, basic fastener iron base plates are arranged at the contact positions of the upper ends of the sleepers, the basic rail A, the frog and the basic rail B.
[0014] Compared with the prior art, the novel steel rail expansion adjuster structure has the following beneficial effects:
[0015] The basic rail A and the basic rail B of the ballast track are provided with the frog, and the basic rail A is provided with the stretch-out rail, the basic rail A is connected with the hydraulic rail stretcher through the stretch-out rail, the basic rail A, the basic rail B and the frog are arranged, the steel rail expansion deformation caused by daily weather changes can be avoided, the situation of derailment caused by the steel rail expansion is avoided, when the extreme weather occurs, the stretch-out rail can be stretched through the hydraulic rail stretcher, the basic rail A can be stretched, the steel rail expansion deformation of the extreme weather can be coped with, and the steel rail has better extreme weather resistance. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification, are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation to the present application, and in the drawings:
[0017] Fig. 1 It is a structural schematic view of the novel steel rail expansion adjuster structure of the present application;
[0018] Fig. 2 It is a gauge pull rod structural schematic view of the novel steel rail expansion adjuster structure of the present application;
[0019] Fig. 3 It is a sliding roller local enlarged structural schematic view of the novel steel rail expansion adjuster structure of the present application;
[0020] Fig. 1, sleeper; 2, small resistance fastener; 3, basic rail A; 4, switch rail; 5, stretch-out lead rail; 6, hydraulic rail stretcher; 7, basic rail B; 8, bridge guard rail; 9, basic fastener; 10, gauge tie rod; 11, sliding roller; 12, bolt; 13, basic fastener iron pad; 14, positioning tie rod main body. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0022] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0023] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0024] Please refer to Figs. 1-3 The present application provides a technical solution:
[0025] The utility model provides a new type rail expansion adjuster structure, including rail tie 1, small resistance fastener 2, basic rail A 3, point rail 4, stretch lead rail 5, hydraulic rail stretcher 6, basic rail B 7, bridge guard rail 8 and basic fastener 9, the upper end of rail tie 1 is provided with bridge guard rail 8, the upper end of rail tie 1 and the position of the front and rear sides of bridge guard rail 8 are provided with basic rail B 7, the upper end of rail tie 1 and the left side position of basic rail B 7 are provided with point rail 4, the upper end of rail tie 1 and the outside of point rail 4 are provided with basic rail A 3, the right side of basic rail A 3 is provided with stretch lead rail 5, and the right side of stretch lead rail 5 is provided with hydraulic rail stretcher 6.
[0026] Two rail gauge pull rods 10 are arranged at the left side of the inner side of two basic rail A 3, the rail gauge pull rod 10 is composed of a bolt 12 and a positioning pull rod body 14, the two ends of the positioning pull rod body 14 are provided with the bolt 12, and the basic rail A 3 and the positioning pull rod body 14 are connected through the bolt 12.
[0027] The upper end of the rail tie 1 is internally provided with a sliding roller 11 at the lower end of the basic rail A 3.
[0028] The basic rail B 7 and the rail tie 1 are fixedly connected through the basic fastener 9, and the basic rail A 3 and the rail tie 1 are movably connected through the small resistance fastener 2.
[0029] The bridge guard rail 8 is provided with two, and the two bridge guard rails 8 are respectively located at the middle position of the upper end of the rail tie 1.
[0030] The basic rail A 3 and the stretch lead rail 5 are of an integrated structure, and the basic rail A 3 and the stretch lead rail 5 are fixedly connected through welding.
[0031] The hydraulic rail stretcher 6 is provided with two, and the two hydraulic rail stretchers 6 are respectively located at the right side of the stretch lead rail 5, the basic rail A 3 and the hydraulic rail stretcher 6 are connected through the stretch lead rail 5, and the hydraulic rail stretcher 6 adopts a railway special YLS-900 hydraulic rail stretcher.
[0032] The upper end of the rail tie 1 is provided with a basic fastener iron pad 13 at the contact position of the basic rail A 3, the point rail 4 and the basic rail B 7.
[0033] The working principle and use process of the utility model are as follows: after the utility model is installed, first, the rail tie 1 is laid on the track, then the basic rail A 3, the basic rail B 7 and the bridge guard rail 8 are laid on the rail tie 1 respectively, then the rail tie 1 and the basic rail A 3 are connected through the small resistance fastener 2, the rail tie 1 and the basic rail B 7 are fixedly connected through the basic fastener 9, and after the track is laid, the train can normally run on the basic rail A 3 and the basic rail B 7.
[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A new type of rail expansion adjuster structure comprising a sleeper (1), a small resistance fastener (2), a main track A (3), a switch rail (4), a stretch-out lead track (5), a hydraulic rail stretcher (6), a main track B (7), a bridge guard rail (8) and a main fastener (9), characterized in that: The upper end of the sleeper (1) is provided with a bridge guard rail (8), the upper end of the sleeper (1) is provided with a basic rail B (7) at the front and rear positions of the bridge guard rail (8), the upper end of the sleeper (1) is provided with a switch rail (4) at the left position of the basic rail B (7), the upper end of the sleeper (1) is provided with a basic rail A (3) at the outer side of the switch rail (4), the right side of the basic rail A (3) is provided with a stretching lead rail (5), and the right side of the stretching lead rail (5) is provided with a hydraulic rail stretcher (6).
2. A new type of rail expansion joint structure according to claim 1, characterized in that: Two rail gauge drawbars (10) are arranged at the left end positions of the inner sides of the two basic rail A (3), the rail gauge drawbar (10) is composed of a bolt (12) and a positioning drawbar body (14), the two ends of the positioning drawbar body (14) are provided with the bolt (12), and the basic rail A (3) and the positioning drawbar body (14) are connected through the bolt (12).
3. A new type of rail expansion joint structure as claimed in claim 1, wherein: The upper end of the sleeper (1) is provided with a sliding roller (11) at the lower end position of the basic rail A (3).
4. A new type of rail expansion joint structure as claimed in claim 1, wherein: The basic rail B (7) and the sleeper (1) are fixedly connected through a basic fastener (9), and the basic rail A (3) and the sleeper (1) are movably connected through a small resistance fastener (2).
5. A new type of rail expansion joint structure as claimed in claim 1, wherein: The bridge guard rail (8) is provided with two bridge guard rails (8), and the two bridge guard rails (8) are respectively located at the upper end of the sleeper (1).
6. A new type of rail expansion joint structure as claimed in claim 1, wherein: The basic rail A (3) and the stretching lead rail (5) are of an integrated structure, and the basic rail A (3) and the stretching lead rail (5) are fixedly connected through welding.
7. A new type of rail expansion joint structure as claimed in claim 1, wherein: The hydraulic rail stretcher (6) is provided with two hydraulic rail stretchers (6), and the two hydraulic rail stretchers (6) are respectively located at the right side positions of the stretching lead rail (5), the basic rail A (3) and the hydraulic rail stretcher (6) are connected through the stretching lead rail (5), and the hydraulic rail stretcher (6) adopts a railway special YLS-900 hydraulic rail stretcher.
8. A new type of rail expansion joint structure as claimed in claim 1, wherein: The upper end of the sleeper (1) is provided with a basic fastener iron pad (13) at the contact position of the basic rail A (3), the switch rail (4) and the basic rail B (7).