Railway track curve section maintenance rail gauge limiting device
Patent Information
- Application Number
- CN202522346041.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-11-05
AI Technical Summary
[0006]因此，本领域迫切需要一种能够在维修作业中快速安装、通用适应不同曲线曲率、并能对轨道进行可靠且无损伤的横向限位的专用装置，以从根本上解决曲线段铁轨拆除连接件后的轨距失稳问题
本实用新型通过先固定中间精准夹持件，再同步锁紧两侧精准夹持件，使三个夹持点瞬间贴合内铁轨曲线，即可把装配件一次性摆到轨距中线上，也精准的确定了轨距机构和外轨定位机构的位置，使内轨定位机构、轨距机构和外轨定位机构对内铁轨和外铁轨只产生纯径向顶撑力，不会附加弯曲或扭转载荷，而多个铰接机构使多个内轨定位机构能够适应内铁轨的曲度，使本实用新型呈扇形展开能够适配不同曲度的铁轨，能够确保曲线段的铁轨在维修时的轨距。
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Figure CN224784651U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a gauge limiting device for the maintenance of curved sections of railway tracks, belonging to the field of railway maintenance. Background Technology
[0002] Curved sections of both high-speed and conventional railways typically consist of two parallel rails, sleepers, a fastening system, a ballast bed, and track connectors, fishplates, high-strength bolts, and insulating clamps connecting the two rails. During routine maintenance or fastener replacement, the track connectors must be removed first, thus releasing the only lateral constraint between the two rails. Due to residual stress and gravity, the rails on curved sections experience significant lateral forces. Once the connectors are removed, the rails naturally shift outwards or inwards elastically, causing a sudden change in gauge that cannot be maintained within the standard range. This directly impacts the efficiency of subsequent geometric adjustments and operational safety.
[0003] In existing technologies, temporary supports or gauge rods are generally used to ensure that the track gauge between rails remains constant.
[0004] Temporary supports typically use wooden or steel wedges to support the rail on one side, but these only provide point contact and cannot form continuous lateral restraint. Furthermore, the wedges are prone to loosening and falling off.
[0005] Gauge rods are typically installed at the rail head or rail web. They are effective when repairing straight sections of rail, but their effectiveness is insufficient when repairing curved sections of rail, and they are not enough to meet the gauge requirements.
[0006] Therefore, there is an urgent need in this field for a specialized device that can be quickly installed during maintenance operations, is universally adaptable to different curve curvatures, and can reliably and non-damagingly limit the lateral movement of the track, so as to fundamentally solve the problem of track gauge instability after the removal of connecting parts on curved sections of the rail. Utility Model Content
[0007] To overcome the shortcomings of existing technologies, a gauge limiting device for maintenance of curved sections of railway tracks is provided to solve the above-mentioned problems.
[0008] A gauge limiting device for maintenance of curved sections of railway tracks includes multiple inner rail positioning mechanisms, multiple gauge mechanisms, multiple outer rail positioning mechanisms, and multiple hinge mechanisms. The multiple inner rail positioning mechanisms and multiple hinge mechanisms are connected alternately in sequence. One end of each inner rail positioning mechanism is hinged to one end of a hinge mechanism, and the other end of the hinge mechanism is hinged to one end of the next inner rail positioning mechanism. This is repeated to form a continuous hinge chain. One side of each inner rail positioning mechanism is hinged to a gauge mechanism, and an outer rail positioning mechanism is provided at the end of each gauge mechanism. Each inner rail positioning mechanism includes an assembly and three precision clamping parts. Each end of the assembly has a hinged blind hole 1 machined in it, and a hinge mechanism is hinged in each hinged blind hole 1. One side of the assembly has a hinged blind hole 2 machined in it, and a gauge mechanism is hinged in each hinged blind hole 2. The lower end face of the assembly has three hinged blind holes 3 machined along its length, and a precision clamping part is hinged in each hinged blind hole 3.
[0009] As a preferred embodiment: Each precision clamping component includes a connecting beam, two connecting feet, two sliding parts, two compression screws, two hexagonal parts, two adjusting screws, and two strip-shaped parts. The upper end of the connecting beam is hinged in a hinged blind hole. Each end of the connecting beam is provided with a connecting foot. Each connecting foot is machined with a strip-shaped sliding hole along its length. Each strip-shaped sliding hole has a strip-shaped groove machined on its side wall. A sliding part is slidably arranged in each strip-shaped sliding hole. Each sliding part is provided with a compression screw along its thickness. The compression screw is threaded to the sliding part. Each sliding part is provided with a strip-shaped part, which is slidably arranged in the strip-shaped groove. Each strip-shaped part is provided with an adjusting screw along its length. The adjusting screw is threaded to the strip-shaped part. One end of the adjusting screw is hinged to the inner wall of the strip-shaped groove, and the other end of the adjusting screw, which passes through the connecting foot, is provided with a hexagonal part.
[0010] As a preferred embodiment: each gauge mechanism includes an internally threaded tube, an externally threaded rod, and a hexagonal adjusting ring. One end of the externally threaded rod is hinged in the second hinged blind hole, and a hexagonal adjusting ring is fitted onto one end of the externally threaded rod. The other end of the externally threaded rod passes through the internally threaded tube, which is threadedly connected to the externally threaded rod. An external rail positioning mechanism is provided at the end of the internally threaded tube.
[0011] As a preferred embodiment: each outer rail positioning mechanism includes a connector, an n-shaped part and two fastening screws. The end of the internally threaded tube is provided with a connector, the lower end of the connector is hinged to the upper end of the n-shaped part, and a fastening screw is passed through each end of the n-shaped part along its thickness direction. The fastening screws are threadedly connected to the n-shaped part.
[0012] As a preferred embodiment: each hinge mechanism includes a hinge rod one and a hinge rod two, one end of hinge rod one is hinged to a hinge blind hole one machined in the adjacent fitting, the other end of hinge rod one is hinged to one end of hinge rod two, and the other end of hinge rod two is hinged to a hinge blind hole one machined in the adjacent fitting.
[0013] The beneficial effects of this utility model are as follows: This invention first fixes the central precision clamping component, then simultaneously locks the two side precision clamping components, so that the three clamping points instantly conform to the inner rail curve. This allows the assembly to be placed on the gauge centerline in one go, and also accurately determines the positions of the gauge mechanism and the outer rail positioning mechanism. This ensures that the inner rail positioning mechanism, gauge mechanism, and outer rail positioning mechanism only generate pure radial support force on the inner and outer rails, without adding bending or torsional loads. The multiple hinge mechanisms allow the multiple inner rail positioning mechanisms to adapt to the curvature of the inner rail, so that this invention can unfold in a fan shape to adapt to rails with different curvatures, ensuring the gauge of the curved section of the rail during maintenance. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention in use. Figure 2 A three-dimensional structural diagram of the inner rail positioning mechanism; Figure 3 This is a three-dimensional structural diagram of the assembly. Figure 4 A three-dimensional structural diagram of a precision clamping component; Figure 5 A three-dimensional structural diagram of the adjusting screw and strip; Figure 6 A schematic diagram of a half-section three-dimensional structure of the connecting foot; Figure 7 This is a three-dimensional structural diagram of the gauge mechanism; Figure 8 A three-dimensional structural diagram of the outer rail positioning mechanism; Figure 9 This is a three-dimensional structural diagram of the hinge mechanism.
[0015] In the diagram: 1-Inner rail positioning mechanism; 1-1-Assembly; 1-11-Hinged blind hole one; 1-12-Hinged blind hole two; 1-2-Precision clamping component; 1-21-Connecting beam; 1-22-Connecting foot; 1-22-1-Strip sliding hole; 1-22-2-Strip groove; 1-23-Sliding component; 1-24-Extrusion screw one; 1-25-Hexagonal component; 1-26-Adjusting screw; 1-27-Strip component; 1-13-Hinged blind hole three; 2-Gap mechanism; 2-1-Internal threaded tube; 2-2-External threaded rod; 2-3-Hexagonal adjusting ring; 3-Outer rail positioning mechanism; 3-1-Connecting component; 3-2-N-shaped component; 3-3-Fasting screw; 4-Hinged mechanism; 4-1-Hinged rod one; 4-2-Hinged rod two; 5-Inner rail; 6-Outer rail. Detailed Implementation
[0016] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.
[0017] Specific implementation method one: Combining Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 This embodiment describes a gauge limiting device for maintaining curved sections of railway tracks, comprising multiple inner rail positioning mechanisms 1, multiple gauge mechanisms 2, multiple outer rail positioning mechanisms 3, and multiple hinge mechanisms 4. The multiple inner rail positioning mechanisms 1 and multiple hinge mechanisms 4 are sequentially and alternately connected. One end of each inner rail positioning mechanism 1 is hinged to one end of a hinge mechanism 4, and the other end of the hinge mechanism 4 is hinged to one end of the next inner rail positioning mechanism 1. This is repeated to form a continuous hinge chain. One side of each inner rail positioning mechanism 1 is hinged to a gauge mechanism 2, and an outer rail positioning mechanism 3 is provided at the end of each gauge mechanism 2. Each inner rail positioning mechanism 1 includes an assembly 1-1 and three precision clamping parts 1-2. Each end of the assembly 1-1 has a hinged blind hole 1-11, and a hinge mechanism 4 is hinged in each of the hinged blind holes 1-11. One side of the assembly 1-1 has a hinged blind hole 2-12, and a track gauge mechanism 2 is hinged in the hinged blind hole 2-12. The lower end face of the assembly 1-1 has three hinged blind holes 3-13 along its length, and a precision clamping part 1-2 is hinged in each of the hinged blind holes 3-13.
[0018] First, clamp and fix the middle precision clamping component 1-2 onto the inner rail 5. Then, simultaneously install the two precision clamping components 1-2 on the inner rail 5 so that the three precision clamping components 1-2 can adapt to the curvature of the inner rail 5, thereby ensuring that the position of the assembly component 1-1 is correctly placed. This determines the position of the gauge mechanism 2 and the outer rail positioning mechanism 3. Then, install the outer rail positioning mechanism 3 onto the outer rail 6 and adjust the length of the gauge mechanism 2 at the same time.
[0019] Specific Implementation Method Two: This implementation method is a further limitation of Specific Implementation Method One. Each precision clamping component 1-2 includes a connecting beam 1-21, two connecting feet 1-22, two sliding parts 1-23, two compression screws 1-24, two hexagonal parts 1-25, two adjusting screws 1-26, and two strip-shaped parts 1-27. The upper end of the connecting beam 1-21 is hinged in a hinge blind hole 1-13. A connecting foot 1-22 is provided at each end of the connecting beam 1-21. Each connecting foot 1-22 has a strip-shaped sliding hole 1-22-1 machined along its length. Each strip-shaped sliding hole 1-22-1 has a strip-shaped groove 1-22-2 machined on its sidewall. Each strip-shaped sliding hole 1-22... A slider 1-23 is slidably arranged in 2-1. Each slider 1-23 is provided with a compression screw 1-24 along its thickness direction. The compression screw 1-24 is threadedly connected to the slider 1-23. Each slider 1-23 is provided with a strip 1-27. The strip 1-27 is slidably arranged in the strip groove 1-22-2. Each strip 1-27 is provided with an adjusting screw 1-26 along its length direction. The adjusting screw 1-26 is threadedly connected to the strip 1-27. One end of the adjusting screw 1-26 is hinged to the inner wall of the strip groove 1-22-2. The other end of the adjusting screw 1-26, which passes through the connecting foot 1-22, is provided with a hexagonal piece 1-25.
[0020] Secure the precision clamping component 1-2 to the upper end of the inner rail 5, with the two connecting feet 1-22 positioned on either side of the inner rail 5. First, tighten the two clamping screws 1-24, inserting the ends of the clamping screws 1-24 into the waistline of the inner rail 5. Then, rotate the hexagonal component 1-25, causing the strip component 1-27 to move upward along the length of the strip groove 1-22-2, so that the clamping screws 1-24 are against the lower edge of the upper end of the inner rail 5. Tighten the two clamping screws 1-24 again, so that their ends abut against the inner rail 5, thus achieving the purpose of precisely and stably clamping the precision clamping component 1-2 onto the inner rail 5.
[0021] Specific Implementation Method 3: This implementation method is a further limitation of Specific Implementation Method 1 or 2. Each gauge mechanism 2 includes an internal threaded tube 2-1, an external threaded rod 2-2, and a hexagonal adjusting ring 2-3. One end of the external threaded rod 2-2 is hinged in the hinged blind hole 1-12. The hexagonal adjusting ring 2-3 is fitted onto one end of the external threaded rod 2-2. The other end of the external threaded rod 2-2 passes through the internal threaded tube 2-1. The internal threaded tube 2-1 is threadedly connected to the external threaded rod 2-2. An external rail positioning mechanism 3 is provided at the end of the internal threaded tube 2-1.
[0022] By turning the hexagonal adjusting ring 2-3, the external threaded rod 2-2 is rotated. The external threaded rod 2-2 is threadedly connected to the internal threaded tube 2-1, thereby achieving the purpose of adjusting the overall length of the internal threaded tube 2-1 and the external threaded rod 2-2. When the inner rail 5 and the outer rail 6 lose their lateral constraint due to the removal of parts, the adjusted gauge mechanism 2 can constrain the distance between the inner rail 5 and the outer rail 6, preventing the distance between the inner rail 5 and the outer rail 6 from expanding or shrinking.
[0023] Specific Implementation Method Four: This implementation method is a further limitation of Specific Implementation Method One, Two or Three. Each outer rail positioning mechanism 3 includes a connector 3-1, an n-shaped part 3-2 and two fastening screws 3-3. The end of the internal threaded tube 2-1 is provided with a connector 3-1. The lower end of the connector 3-1 is hinged to the upper end of the n-shaped part 3-2. A fastening screw 3-3 is passed through each end of the n-shaped part 3-2 along its thickness direction. The fastening screw 3-3 is threadedly connected to the n-shaped part 3-2.
[0024] Attach the n-shaped piece 3-2 to the upper end of the outer rail 6, and then tighten the fastening screws 3-3 on both sides so that the ends of the fastening screws 3-3 abut against the side of the outer rail 6 to achieve the purpose of clamping and positioning.
[0025] Specific Implementation Method 5: This implementation method further defines Specific Implementation Methods 1, 2, 3, or 4. Each hinge mechanism 4 includes a hinge rod 4-1 and a hinge rod 4-2. One end of the hinge rod 4-1 is hinged to a hinge blind hole 1-11 machined on the adjacent accessory 1-1. The other end of the hinge rod 4-1 is hinged to one end of the hinge rod 4-2. The other end of the hinge rod 4-2 is hinged to a hinge blind hole 1-11 machined on the adjacent accessory 1-1.
[0026] Hinged rod 1 4-1 is hinged to hinged rod 2 4-2, thereby enabling the two adjacent inner rail positioning mechanisms 1 to bend freely, thus achieving the purpose of adapting to the curvature of the inner rail 5.
[0027] Working principle: Three precision clamping parts 1-2 are hinged to the lower end of the assembly 1-1. First, the middle precision clamping part 1-2 is clamped and fixed on the inner rail 5. Then, the two precision clamping parts 1-2 on both sides are installed on the inner rail 5 simultaneously, so that the three precision clamping parts 1-2 can adapt to the curvature of the inner rail 5, thereby ensuring that the assembly 1-1 is correctly positioned. This determines the position of the gauge mechanism 2 and the outer rail positioning mechanism 3, so that the inner rail positioning mechanism 1, gauge mechanism 2 and outer rail positioning mechanism 3 are located on the center line of the gauge of the inner rail 5 and the outer rail 6. This ensures that after the parts are removed from the inner rail 5 and the outer rail 6, the inner rail positioning mechanism 1, gauge mechanism 2 and outer rail positioning mechanism 3 only generate pure radial support force and will not add bending or torsional loads.
Claims
1. A gauge limiting device for maintenance of curved sections of railway tracks, characterized in that: It includes multiple inner rail positioning mechanisms (1), multiple track gauge mechanisms (2), multiple outer rail positioning mechanisms (3) and multiple hinge mechanisms (4). The multiple inner rail positioning mechanisms (1) and multiple hinge mechanisms (4) are connected alternately in sequence. One end of each inner rail positioning mechanism (1) is hinged to one end of a hinge mechanism (4), and the other end of the hinge mechanism (4) is hinged to one end of the next inner rail positioning mechanism (1). This is repeated to form a continuous hinge chain. One side of each inner rail positioning mechanism (1) is hinged to a track gauge mechanism (2), and each track gauge mechanism (2) is provided with an outer rail positioning mechanism (3) at its end. Each inner rail positioning mechanism (1) includes an assembly (1-1) and three precision clamping parts (1-2). Each end of the assembly (1-1) is machined with a hinged blind hole (1-11). Each hinged blind hole (1-11) is hinged with a hinge mechanism (4). One side of the assembly (1-1) is machined with a hinged blind hole (1-12). Each hinged blind hole (1-12) is hinged with a gauge mechanism (2). The lower end face of the assembly (1-1) is machined with three hinged blind holes (1-13) along its length. Each hinged blind hole (1-13) is hinged with a precision clamping part (1-2).
2. The gauge limiting device for maintenance of curved sections of railway tracks according to claim 1, characterized in that: Each precision clamping component (1-2) includes a connecting beam (1-21), two connecting feet (1-22), two slides (1-23), two clamping screws (1-24), two hexagonal pieces (1-25), two adjusting screws (1-26), and two strip-shaped pieces (1-27). The upper end of the connecting beam (1-21) is hinged in a hinged blind hole (1-13). A connecting foot (1-22) is provided at each end of the connecting beam (1-21). Each connecting foot (1-22) has a strip-shaped sliding hole (1-22-1) machined along its length. A strip-shaped groove (1-22-2) is machined on the side wall of each strip-shaped sliding hole (1-22-1). A slide is slidably arranged in each strip-shaped sliding hole (1-22-1). (1-23) Each slider (1-23) is provided with a compression screw (1-24) along its thickness direction. The compression screw (1-24) is threaded to the slider (1-23). Each slider (1-23) is provided with a strip (1-27). The strip (1-27) is slidably disposed in the strip groove (1-22-2). Each strip (1-27) is provided with an adjusting screw (1-26) along its length direction. The adjusting screw (1-26) is threaded to the strip (1-27). One end of the adjusting screw (1-26) is hinged to the inner wall of the strip groove (1-22-2). The other end of the adjusting screw (1-26) is provided with a hexagonal piece (1-25) inside the connecting foot (1-22).
3. The gauge limiting device for maintenance of curved sections of railway tracks according to claim 1, characterized in that: Each gauge mechanism (2) includes an internal threaded tube (2-1), an external threaded rod (2-2), and a hexagonal adjusting ring (2-3). One end of the external threaded rod (2-2) is hinged in the second hinged blind hole (1-12). The hexagonal adjusting ring (2-3) is fitted on one end of the external threaded rod (2-2). The other end of the external threaded rod (2-2) passes through the internal threaded tube (2-1). The internal threaded tube (2-1) is threadedly connected to the external threaded rod (2-2). An external rail positioning mechanism (3) is provided at the end of the internal threaded tube (2-1).
4. A gauge limiting device for maintenance of curved sections of railway tracks according to claim 3, characterized in that: Each outer rail positioning mechanism (3) includes a connector (3-1), an n-shaped part (3-2), and two fastening screws (3-3). The end of the internal threaded tube (2-1) is provided with a connector (3-1). The lower end of the connector (3-1) is hinged to the upper end of the n-shaped part (3-2). A fastening screw (3-3) is passed through each end of the n-shaped part (3-2) along its thickness direction. The fastening screw (3-3) is threadedly connected to the n-shaped part (3-2).
5. A gauge limiting device for maintenance of curved sections of railway tracks according to claim 1, characterized in that: Each hinge mechanism (4) includes a hinge rod one (4-1) and a hinge rod two (4-2). One end of the hinge rod one (4-1) is hinged in a hinge blind hole one (1-11) machined on the adjacent fitting (1-1). The other end of the hinge rod one (4-1) is hinged to one end of the hinge rod two (4-2). The other end of the hinge rod two (4-2) is hinged in a hinge blind hole one (1-11) machined on the adjacent fitting (1-1).