WO2023108821A1 - 固定型组合辙叉 - Google Patents

固定型组合辙叉 Download PDF

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Publication number
WO2023108821A1
WO2023108821A1 PCT/CN2021/142224 CN2021142224W WO2023108821A1 WO 2023108821 A1 WO2023108821 A1 WO 2023108821A1 CN 2021142224 W CN2021142224 W CN 2021142224W WO 2023108821 A1 WO2023108821 A1 WO 2023108821A1
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WIPO (PCT)
Prior art keywords
rail
wing rail
wing
mosaic block
block
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PCT/CN2021/142224
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English (en)
French (fr)
Inventor
施庆峰
汤铁兵
孙立彬
李文博
柳亚楠
王磊
崔琨喨
李春强
张春雨
孙野
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中铁宝桥集团有限公司
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Application filed by 中铁宝桥集团有限公司 filed Critical 中铁宝桥集团有限公司
Publication of WO2023108821A1 publication Critical patent/WO2023108821A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/10—Frogs
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/10—Frogs
    • E01B7/12—Fixed frogs made of one part or composite

Definitions

  • the embodiment of the present invention relates to the technical field of rail transit, in particular to a fixed combined frog.
  • Turnout is an important part of the railway track structure. In the railway transportation business, the arrival and departure of trains, passing, overrunning, locomotive detachment, vehicle shunting, compilation, rolling stock maintenance, cargo loading and unloading operations, etc., all rely on Turnout can be realized.
  • seamless track has become the main track structure form of railway main line, and seamless turnout has become inevitable. Since the fixed high manganese steel cast frogs cannot be directly welded with the line rails at the laying site, they are gradually replaced by alloy steel composite frogs on the main railway line.
  • Existing problems such as the complex manufacturing process of the mosaic wing-rail type alloy steel fixed composite frog structure, insufficient strength of the wing-rail mosaic block, difficulty in assembly and online replacement, and low production efficiency have affected the promotion of the mosaic wing-rail type alloy steel composite frog application.
  • the purpose of the embodiments of the present invention is to provide a fixed combined frog, thereby overcoming one or more problems caused by limitations and defects of related technologies at least to a certain extent.
  • a fixed combined frog including:
  • Wing rail set including the first wing rail and the second wing rail arranged at intervals;
  • a core rail located between the first wing rail and the second wing rail;
  • the fork heel rail includes a first fork heel rail and a second fork heel rail arranged at intervals, the first fork heel rail is arranged between the first wing rail and the core rail, and its end is arranged on the The tail of the core rail is close to the side wall of the first wing rail, the second fork heel rail is arranged between the second wing rail and the core rail, and its end is set at the tail of the core rail close to the on the side wall of the second wing rail;
  • the mosaic block set includes a first wing rail fixedly connected to the inner side of the first wing rail on the inner side of the first wing rail and the second wing rail, which is arranged between the throat of the wing rail set and the preset position.
  • a mosaic block and a second mosaic block fixedly connected to the inner side of the second wing rail, the first mosaic block and the second mosaic block both include a middle main body segment and extensions at both ends of the main body segment, the first mosaic block
  • the extension section of the block is gradually narrowed from one end of the main body section to the free end, and the height is gradually lower than the first wing rail, and the extension section of the second mosaic block is from one end of the main body section to the free end.
  • the width of the rail head at the free end gradually narrows, and the height is gradually lower than the second wing rail;
  • the surface of the first mosaic block that is in close contact with the side of the head of the first wing rail has a preset slope toward the second wing rail, and the first mosaic block and the first wing rail There is a preset gap between the upper jaws, which fits with the lower jaw of the first wing rail and the side of the rail limbs, and the surface of the second mosaic block that is in close contact with the side of the second wing rail head has a surface facing the first wing rail.
  • a wing rail has a preset slope, and there is a preset gap between the second mosaic block and the upper jaw of the second wing rail, and is attached to the lower jaw of the second wing rail and the side of the rail limb.
  • the first wing rail and the second wing rail are steel rails with symmetrical sections, the first wing rail is installed at the first mosaic block and the second wing rail is installed at the second The side of the rail head at the mosaic block is treated with a milling process.
  • the preset position is where the rail head width of the core rail is 60 ⁇ 10 mm.
  • the extension section is from the point where the rail head width of the first mosaic block or the second mosaic block is 30 ⁇ 5 mm to the free end.
  • the shape of the rail head of the main body section matches the tread surface of the train wheel that it contacts.
  • the fixed combined frog is uniformly connected by using a bolt connection pair at intervals of preset distances.
  • the rail heads of the first mosaic block and the second mosaic block have a maximum width of 50 mm to 70 mm.
  • the preset slope is 2°-20°
  • the preset gap is 0.5mm-4mm.
  • the core rail, the first mosaic block and the second mosaic block are all made of forged alloy steel or cast high manganese steel.
  • the hardness of the forged alloy steel is greater than or equal to 360HBW, and the hardness of the cast high manganese steel is greater than or equal to 229HBW.
  • the assembly of the mosaic block is simple, and it can better meet the online replacement and maintenance of the mosaic block;
  • the force state makes the mosaic block and wing rail structure stable and difficult to move when the train passes, and enhances the thickness and force strength of the rail head of the mosaic block.
  • Fig. 1 shows a schematic diagram of the structure of a fixed combined frog in an exemplary embodiment of the present invention
  • Fig. 2 shows a schematic diagram of the cross-sectional structure of a fixed combined frog A-A in an exemplary embodiment of the present invention
  • Fig. 3 shows the schematic diagram of the cross-sectional structure of fixed combined frog B-B in an exemplary embodiment of the present invention
  • Fig. 4 shows the schematic diagram of the cross-sectional structure of fixed combined frog C-C in an exemplary embodiment of the present invention
  • Figure 5 shows a schematic diagram of the cross-sectional structure of a fixed combined frog D-D in an exemplary embodiment of the present invention
  • Fig. 6 shows a schematic diagram of the partial structure of the cross-section D-D of the fixed combined frog in the exemplary embodiment of the present invention.
  • 101-first wing rail 101-first wing rail, 102-second wing rail, 103-first mosaic block, 104-second mosaic block, 105 core rail, 106-first fork heel rail, 107-second fork heel rail, 108-bolt joint, 109-throat, 110-preset position.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and fully convey the concept of example embodiments to those skilled in the art.
  • the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
  • a fixed combined frog is firstly provided.
  • the fixed combined frog may include: a wing rail set, a core rail 105, a fork heel rail and a mosaic block set, and the wing rail set includes a first wing rail 101 and a second wing rail set at intervals.
  • the core rail 105 is located between the first wing rail 101 and the second wing rail 102;
  • the fork heel rail includes a first fork heel rail 106 and a second fork heel rail 107 arranged at intervals, the The first fork heel rail 106 is disposed between the first wing rail 101 and the core rail 105, and its end is disposed on the side wall of the tail of the core rail 105 close to the first wing rail 101.
  • the second fork heel rail 107 is arranged between the second wing rail 102 and the core rail 105, and its end is arranged on the side wall of the tail of the core rail 105 close to the second wing rail 102;
  • the mosaic block set is arranged between the throat of the wing rail set and the preset position 110, and the first wing rail 101 and the second wing rail 102 are fixedly connected on the inner side of the first wing rail 101 on the inner side.
  • the extension section, the extension section of the first mosaic block 103 is gradually narrowed from one end of the main body section to the free end, and the height of the rail head is gradually lower than the first wing rail 101, and the second mosaic block 104 From one end of the main body section to the free end, the width of the rail head gradually narrows, and the height is gradually lower than the second wing rail 102; wherein, the first mosaic block 103 and the first wing rail 101
  • the side surface of the rail head that is close to and in contact with the second wing rail 102 has a preset slope, and there is a preset gap between the first mosaic block 103 and the upper jaw of the first wing rail 101 , and the second wing rail 101 has a preset gap.
  • the lower jaw of a wing rail 101 is attached to the side of the rail limb, and the surface of the second mosaic block 104 that is in close contact with the side of the rail head of the second wing rail 102 has a preset slope toward the first wing rail 101, There is a predetermined gap between the second mosaic block 104 and the upper jaw of the second wing rail 102 , which fits with the lower jaw of the second wing rail 102 and the sides of the rail legs.
  • a first mosaic block fixedly connected to the inner side of the first wing rail 101 is provided between the throat 109 and the preset position 110.
  • the extension section can be well embedded with the wing rail group, and there is a transition process, so that the cross section of the rail at the end of the mosaic block group is not abrupt, and the unsafety of the train is avoided to a large extent.
  • the length of the extension section may be 80 mm to 120 mm, and the width of the narrowest part of the extension section may be 1 mm to 5 mm, preferably 3 mm.
  • the first mosaic block 103 and the second mosaic block 104 have a certain degree of freedom with the sides of the first wing rail 101 and the second wing rail 102 when they are embedded and installed, and can be installed more easily.
  • the first wing rail 101 and the second wing rail 102 have a downward force on the first mosaic block 103 and the second mosaic block 104 installed thereon, thus to a certain extent
  • the problem of upward movement of the first mosaic block 103 and the second mosaic block 104 due to the setting of the preset gap is reduced, and the design of the preset slope makes the upper part of the mosaic block rail head part narrow and the bottom part wide, which strengthens the rail head of stoutness.
  • the first wing rail 101 and the second wing rail 102 and the first mosaic block 103 and the second mosaic block 104 installed thereon are all in a close state except the preset gap, the first wing rail 101 and the second wing rail 102 also have a certain supporting effect on the first mosaic block 103 and the second mosaic block 104 installed thereon, and this supporting effect improves the first mosaic block 103 and the second mosaic block 104 to a certain extent of force strength.
  • the first wing rail 101 and the second wing rail 102 may be steel rails with symmetrical cross sections, the first wing rail 101 is installed at the first mosaic block 103 and the second wing rail 102 is installed The side surface of the rail head at the second mosaic block 104 is processed by a milling process.
  • the first wing rail 101 and the second wing rail 102 can use symmetrical cross-section wing rails. Compared with special cross-section wing rails, it is easier to obtain materials.
  • the place where the first mosaic block 103 is installed and the place where the second wing rail 102 is installed with the second mosaic block 104 only need to be processed by a milling process.
  • the preset position 110 may be the position where the rail head width of the core rail 105 is 60 ⁇ 10 mm.
  • the extension section may be from the first mosaic block 103 or the second mosaic block 104 where the rail head width is 30 ⁇ 5mm to the free end.
  • the body section rail head may be shaped to match the tread of the train wheel it is in contact with.
  • the shape of the rail head of the first mosaic block 103 and the second mosaic block 104 should match the wheel tread of the train in contact, so that the main body section can better carry the wheels, improve the safety of the train operation and The service life of the first mosaic piece 103 and the second mosaic piece 104 .
  • bolt connection pairs 108 are used to uniformly connect the fixed combined frog at intervals of preset distances.
  • the fixed composite frogs are connected at a predetermined distance along the extension direction of the fixed composite frogs, and the fixed composite frogs are connected uniformly by using high-strength bolt connection pairs 108, which can better ensure the connection between the structures in the fixed composite frogs.
  • the relative stability improves the safety and service life of the fixed combined frog, and the preset distance can be set as required.
  • the rail heads of the first mosaic block 103 and the second mosaic block 104 have a maximum width of 50 mm to 70 mm. Specifically, the width at the widest position of the rail head of the first mosaic block 103 and the second mosaic block 104 is too small, the pressure bearing capacity is weak, it is easy to be worn, and the service life is short; if the rail head is too wide, the first mosaic block 103 and the The top of the rail head of the second mosaic block 104 is severely worn close to the core rail, and the position away from the core rail is not worn, so that there is a "triangular pit" on the top of the rail head of the first mosaic block 103 and the second mosaic block 104, which affects the smooth crossing of the train sex.
  • the preset slope may be 2°-20°, and the preset gap may be 0.5mm-4mm.
  • setting the preset gap within the above parameter range can make it easier to install the first mosaic block 103 and the second mosaic block 104 into the first wing rail 101 and the second wing rail 102 without causing The first mosaic block 103 and the second mosaic block 104 are too loose on the first wing rail 101 and the second wing rail 102, wherein, the optimal size of the preset gap is 1 mm to 3 mm; at the same time, the preset slope is set at the above Within the parameter range, the milling of the first wing rail 101 and the second wing rail 102 is less, and at the same time, the stress state of the first mosaic block 103 and the second mosaic block 104 can be better improved, and the mosaic block can be pressed down. stable effect.
  • the core rail 105, the first mosaic block 103 and the second mosaic block 104 may all be made of forged alloy steel or cast high manganese steel.
  • the core rail 105, the first mosaic block 103 and the second mosaic block 104 should be made of wear-resistant materials, which can be made of forged alloy steel or cast high manganese steel, and of course other wear-resistant materials can also be used. made, no specific limitation is made here.
  • the hardness of the forged alloy steel may be greater than or equal to 360HBW, and the hardness of the cast high manganese steel may be greater than or equal to 229HBW.
  • the first mosaic block 103 and the second mosaic block 104 made of forged alloy steel or cast high manganese steel with a hardness above the above parameters have a shorter replacement cycle and a longer service life.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means two or more, unless otherwise specifically defined.
  • connection In the embodiments of the present invention, terms such as “installation”, “connection”, “connection” and “fixation” should be interpreted in a broad sense unless otherwise clearly specified and limited. Disassembled connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
  • the first feature being "on” or “under” the second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. Two features are not in direct contact but through another feature between them.
  • “above”, “above” and “above” the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.
  • "Below”, “beneath” and “under” the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Connection Of Plates (AREA)

Abstract

一种固定型组合辙叉，包括：翼轨组，包括间隔设置的第一翼轨（101）和第二翼轨（102）；心轨（105），位于第一翼轨（101）和第二翼轨（102）之间；叉跟轨，包括间隔设置的第一叉跟轨（106）和第二叉跟轨（107）；镶嵌块组，包括设置在翼轨组咽喉部（109）至预设位置之间，第一翼轨（101）和第二翼轨（102）相对侧面上，与第一翼轨（101）内侧固定连接的第一镶嵌块（103）和与第二翼轨（102）内侧固定连接的第二镶嵌块（104）；第一镶嵌块（103）和第二镶嵌块（104）均包括中间主体段和主体段两端的延伸段，第一镶嵌块（103）的延伸段从位于主体段一端向自由端其轨头宽度逐渐变窄、高度逐渐低于第一翼轨（101），第二镶嵌块（104）的延伸段从位于主体段一端向自由端其轨头宽度逐渐变窄、高度逐渐低于第二翼轨（102）；其中，第一镶嵌块（103）与第一翼轨（101）轨头侧面贴合且接触的面具有朝向第二翼轨（102）预设斜度，第一镶嵌块（103）与第一翼轨（101）上颚之间具有预设缝隙，与第一翼轨（101）下颚及轨肢侧面贴合，第二镶嵌块（104）与第二翼轨（102）轨头侧面紧贴且接触的面具有朝向第一翼轨（101）预设斜度，第二镶嵌块（104）与第二翼轨（102）上颚之间具有预设缝隙，与第二翼轨（102）下颚及轨肢侧面贴合。该组合辙叉改善了镶嵌块的受力状态，使得列车通过时镶嵌块与翼轨结构稳固不易移动，且增强了镶嵌块轨头部位的粗壮度和受力强度。

Description

固定型组合辙叉
[根据细则26改正 20.01.2022]
本申请要求在2021年12月17日提交的，申请号为202111552410.3，名称为“固定型组合辙叉”的中国专利申请的优先权，上述申请的全部内容通过引用并入本文。
技术领域
本发明实施例涉及轨道交通技术领域，尤其涉及一种固定型组合辙叉。
背景技术
机车车辆由一条线路分支进入或越过另一条线路的连接及交叉设备分支称为道岔。道岔是铁路轨道结构的一个重要组成部分，铁路运输业务中的列车到发、会让、越行、机车摘挂、车辆调车、编解、机车车辆整备修理、货物装卸作业等，无不借助于道岔方能实现。
相关技术中，无缝线路已成为铁路正线的主要轨道结构形式，道岔无缝化已成必然。固定型高锰钢整铸辙叉由于不能和线路钢轨在铺设现场直接进行焊接，在铁路正线上逐渐被合金钢组合辙叉所取代。既有镶嵌翼轨式合金钢固定型组合辙叉结构制造工艺复杂、翼轨镶嵌块强度不足、组装和在线更换困难、生产效率低等问题，从而影响镶嵌翼轨式合金钢组合辙叉的推广应用。
因此，有必要改善上述相关技术方案中存在的一个或者多个问题。
需要注意的是，本部分旨在为权利要求书中陈述的本发明的实施方式提供背景或上下文。此处的描述不因为包括在本部分中就承认是现有技术。
发明内容
本发明实施例的目的在于提供一种固定型组合辙叉，进而至少在一定程度上克服由于相关技术的限制和缺陷而导致的一个或者多个问题。
根据本发明实施例的第一方面，提供一种固定型组合辙叉，包括：
翼轨组，包括间隔设置的第一翼轨和第二翼轨；
心轨，位于所述第一翼轨和第二翼轨之间；
叉跟轨，包括间隔设置的第一叉跟轨和第二叉跟轨，所述第一叉跟轨设置于所述第一翼轨和所述心轨之间，其端部设置于所述心轨尾部靠近所述第一翼轨的侧壁上，所述第二叉跟轨设置于所述第二翼轨和所述心轨之间，其端部设置于所述心轨尾部靠近所述第二翼轨的侧壁上；
镶嵌块组，包括设置在所述翼轨组咽喉部至预设位置之间，所述第一翼轨和第二翼轨相对内侧面上，与所述第一翼轨内侧固定连接的第一镶嵌块和与所述第二翼轨内侧固定连接的第二镶嵌块，所述第一镶嵌块和所述第二镶嵌块均包括中间主体段和主体段两端的延伸段，所述第一镶嵌块的延伸段从位于所述主体段一端向自由端其轨头高度逐渐变窄、高度逐渐低于所述第一翼轨，所述第二镶嵌块的延伸段从位于所述主体段一端向自由端其轨头宽度逐渐变窄、高度逐渐低于所述第二翼轨；
其中，所述第一镶嵌块与所述第一翼轨轨头侧面紧贴且接触的面具有朝向所述第二翼轨预设斜度，所述第一镶嵌块与所述第一翼轨上颚之间具有预设缝隙，与所述第一翼轨下颚及轨肢侧面贴合，所述第二镶嵌块与所述第二翼轨轨头侧面紧贴且接触的面具有朝向所述第一翼轨预设斜度，所述第二镶嵌块与所述第二翼轨上颚之间具有预设缝隙，与所述第二翼轨下颚及轨肢侧面贴合。
本发明的一实施例中，所述第一翼轨和第二翼轨为对称断面钢轨，所述第一翼轨安装所述第一镶嵌块处和所述第二翼轨安装所述第二镶嵌块处的轨头侧面采用铣削工艺进行处理。
本发明的一实施例中，所述预设位置处为所述心轨轨头宽度为60±10mm处。
本发明的一实施例中，所述延伸段为所述第一镶嵌块或所述第二镶嵌块轨头宽度为30±5mm处至自由端处。
本发明的一实施例中，所述主体段轨头形状与所接触的列车车轮踏 面相匹配。
本发明的一实施例中，沿所述固定型组合辙叉延伸方向上，每间隔预设距离，采用螺栓连接副将固定型组合辙叉进行统一连接。
本发明的一实施例中，所述第一镶嵌块和所述第二镶嵌块轨头最宽为50mm～70mm。
本发明的一实施例中，所述预设斜度为2°～20°，所述预设缝隙为0.5mm～4mm。
本发明的一实施例中，所述心轨、所述第一镶嵌块和所述第二镶嵌块均为锻造合金钢或铸造高锰钢制成。
本发明的一实施例中，所述锻造合金钢的硬度大于等于360HBW，所述铸造高锰钢的硬度大于等于229HBW。
本发明的实施例提供的技术方案可以包括以下有益效果：
本发明的实施例中，上述固定型组合辙叉，镶嵌块与翼轨上颚之间设置有间隙，与翼轨下颚及轨肢侧面贴合，并且镶嵌块与翼轨的轨头侧面贴合处为倾斜状，使得翼轨对镶嵌块的轨头具有下压力，一方面使得镶嵌块的组装简单，能够较好的满足镶嵌块的在线更换和养护；另一方面该结构改善了镶嵌块的受力状态，使得列车通过时镶嵌块与翼轨结构稳固不易移动，且增强了镶嵌块轨头部位的粗壮度和受力强度。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1示出本发明示例性实施例中固定型组合辙叉结构示意图；
图2示出本发明示例性实施例中固定型组合辙叉A-A横截面结构示意图；
图3示出本发明示例性实施例中固定型组合辙叉B-B横截面结构示意图；
图4示出本发明示例性实施例中固定型组合辙叉C-C横截面结构示意图；
图5示出本发明示例性实施例中固定型组合辙叉D-D横截面结构示意图；
图6示出本发明示例性实施例中固定型组合辙叉D-D横截面局部结构示意图。
其中：101-第一翼轨，102-第二翼轨，103-第一镶嵌块，104-第二镶嵌块，105心轨，106-第一叉跟轨，107-第二叉跟轨，108-螺栓连接副，109-咽喉部，110-预设位置。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的范例；相反，提供这些实施方式使得本发明将更加全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施方式中。
此外，附图仅为本发明实施例的示意性图解，并非一定是按比例绘制。图中相同的附图标记表示相同或类似的部分，因而将省略对它们的重复描述。附图中所示的一些方框图是功能实体，不一定必须与物理或逻辑上独立的实体相对应。
本示例实施方式中首先提供了一种固定型组合辙叉。参考图1中所示，该固定型组合辙叉可以包括：翼轨组、心轨105、叉跟轨和镶嵌块组，所述翼轨组包括间隔设置的第一翼轨101和第二翼轨102；所述心轨105位于所述第一翼轨101和第二翼轨102之间；所述叉跟轨包括间隔设置的第一叉跟轨106和第二叉跟轨107，所述第一叉跟轨106设置于所述第一翼轨101和所述心轨105之间，其端部设置于所述心轨105尾部靠近所述第一翼轨101的侧壁上，所述第二叉跟轨107设置于所述第二翼轨102和所述心轨105之间，其端部设置于所述心轨105尾部靠近所述第二翼轨102的侧壁上；所述镶嵌块组包括设置在所述翼轨组咽喉部至预设位置110之间，所述第一翼轨101和第二翼轨102相对内侧面上，与所 述第一翼轨101内侧固定连接的第一镶嵌块103和与所述第二翼轨102内侧固定连接的第二镶嵌块104，所述第一镶嵌块103和所述第二镶嵌块104均包括中间主体段和主体段两端的延伸段，所述第一镶嵌块103的延伸段从位于所述主体段一端向自由端其轨头高度逐渐变窄、高度逐渐低于所述第一翼轨101，所述第二镶嵌块104的延伸段从位于所述主体段一端向自由端其轨头宽度逐渐变窄、高度逐渐低于所述第二翼轨102；其中，所述第一镶嵌块103与所述第一翼轨101轨头侧面紧贴且接触的面具有朝向所述第二翼轨102预设斜度，所述第一镶嵌块103与所述第一翼轨101上颚之间具有预设缝隙，与所述第一翼轨101下颚及轨肢侧面贴合，所述第二镶嵌块104与所述第二翼轨102轨头侧面紧贴且接触的面具有朝向所述第一翼轨101预设斜度，所述第二镶嵌块104与所述第二翼轨102上颚之间具有预设缝隙，与所述第二翼轨102下颚及轨肢侧面贴合。
具体的，在所述第一翼轨101和第二翼轨102相对侧面上，从咽喉处109至预设位置110处之间设置与所述第一翼轨101内侧固定连接的第一镶嵌块103和与所述第二翼轨102内侧固定连接的第二镶嵌块104，而延伸段通过逐渐变窄和逐渐变矮的设计，一方面便于第一镶嵌块103和第二镶嵌块104的安装，另一方面通过延伸段可以和翼轨组很好的嵌接，且有个过渡的过程，使得轨道在镶嵌块组的端部处的截面不是突变的，较大程度避免对列车造成不安全隐患，例如，延伸段的长度可以为80mm～120mm，延伸段最窄处的宽度可以为1mm～5mm，最佳为3mm。通过预设缝隙的设置，使得第一镶嵌块103和第二镶嵌块104在嵌入安装时与第一翼轨101和第二翼轨102的侧面有一定的自由度，能够较容易的进行安装，而通过预设斜度的设计，使得第一翼轨101和第二翼轨102对安装在其上的第一镶嵌块103和第二镶嵌块104具有向下的施力，从而在一定程度上降低了第一镶嵌块103和第二镶嵌块104因为预设缝隙的设置产生的向上移动问题，并且，预设斜度的设计使得镶嵌块轨头部位上部窄、下部宽，增强了轨头的粗壮度。同时，由于第一翼轨101和第二翼轨102和安装在其上的第一镶嵌块103和第二镶嵌块104除了预设缝隙处其余位置处均是紧贴状态，因此第一翼轨101和第二翼轨102对安装在其上的第一镶嵌块103和第二镶嵌块104也有一定的支撑作用， 该支撑作用在一定程度上提高了第一镶嵌块103和第二镶嵌块104的受力强度。
上述固定型组合辙叉，镶嵌块与翼轨上颚之间设置有间隙，与翼轨下颚及轨肢侧面贴合，并且镶嵌块与翼轨的轨头侧面贴合处为倾斜状，使得翼轨对镶嵌块的轨头具有下压力，一方面使得镶嵌块的组装简单，能够较好的满足镶嵌块的在线更换和养护；另一方面该结构改善了镶嵌块的受力状态，使得列车通过时镶嵌块与翼轨结构稳固不易移动，且增强了镶嵌块轨头部位的粗壮度和受力强度。
下面，将参考图1至图6对本示例实施方式中的上述可动心轨105辙叉的各个部分进行更详细的说明。
在一个实施例中，所述第一翼轨101和第二翼轨102可以为对称断面钢轨，所述第一翼轨101安装所述第一镶嵌块103处和所述第二翼轨102安装所述第二镶嵌块104处的轨头侧面采用铣削工艺进行处理。具体的，对称断面钢轨设计制造简单、制造成本低，第一翼轨101和第二翼轨102可以采用对称断面翼轨相较于采用特种断面翼轨，取材更加容易，对于第一翼轨101安装第一镶嵌块103处和第二翼轨102安装第二镶嵌块104处仅需要通过铣削工艺进行处理即可。
在一个实施例中，所述预设位置110处可以为所述心轨105轨头宽度为60±10mm处。
在一个实施例中，所述延伸段可以为所述第一镶嵌块103或所述第二镶嵌块104轨头宽度为30±5mm处至自由端处。
在一个实施例中，所述主体段轨头形状可以与所接触的列车车轮踏面相匹配。具体的，第一镶嵌块103和第二镶嵌块104轨头的形状应当与所接触的列车的车轮踏面相匹配，以使得主体段能够更好的对车轮进行承载，提高列车运行的安全性以及第一镶嵌块103和第二镶嵌块104的使用寿命。
在一个实施例中，沿所述固定型组合辙叉延伸方向上，每间隔预设距离，采用螺栓连接副108将固定型组合辙叉进行统一连接。具体的，沿固定型组合辙叉延伸方向上间隔预设距离，采用高强度螺栓连接副108将固定型组合辙叉进行统一连接，可以较好的保证固定型组合辙叉中各 结构之间的相对稳固性，提高了固定型组合辙叉的安全性和使用寿命，其中，预设距离可根据需要进行设定。
在一个实施例中，所述第一镶嵌块103和所述第二镶嵌块104轨头最宽为50mm～70mm。具体的，第一镶嵌块103和第二镶嵌块104轨头最宽位置处宽度过小承压能力较弱，容易被磨损，使用周期较短；轨头过宽会使得第一镶嵌块103和第二镶嵌块104轨头顶部存在靠近心轨位置磨损严重，远离心轨位置未磨损，从而使得第一镶嵌块103和第二镶嵌块104轨头顶部存在“三角坑”，影响列车过叉平顺性。
在一个实施例中，所述预设斜度可以为2°～20°，所述预设缝隙可以为0.5mm～4mm。具体的，将预设缝隙设置在上述参数范围内，既可以使得第一镶嵌块103和第二镶嵌块104较容易的安装进第一翼轨101和第二翼轨102上，又不会使得第一镶嵌块103和第二镶嵌块104在第一翼轨101和第二翼轨102上过于松动，其中，预设缝隙的最佳尺寸为1mm～3mm；同时将预设斜度设置在上述参数范围内，对第一翼轨101和第二翼轨102的铣削较少同时也能够较好的改善第一镶嵌块103和第二镶嵌块104的受力状态，为镶嵌块起到下压稳固的作用。
在一个实施例中，所述心轨105、所述第一镶嵌块103和所述第二镶嵌块104可以均为锻造合金钢或铸造高锰钢制成。具体的心轨105、第一镶嵌块103和第二镶嵌块104应当采用耐磨材料制作效果更好，具体可以是锻造合金钢或铸造高锰钢制成，当然还可以是其他的耐磨材料制成，在此不做具体的限定。
在一个实施例中，所述锻造合金钢的硬度可以大于等于360HBW，所述铸造高锰钢的硬度可以大于等于229HBW。具体的，由上述硬度参数以上的锻造合金钢或铸造高锰钢材料制成的第一镶嵌块103和第二镶嵌块104更换周期较短，使用寿命更长。
上述固定型组合辙叉，镶嵌块与翼轨上颚之间设置有间隙，与翼轨下颚及轨肢侧面贴合，并且镶嵌块与翼轨的轨头侧面贴合处为倾斜状，使得翼轨对镶嵌块的轨头具有下压力，一方面使得镶嵌块的组装简单，能够较好的满足镶嵌块的在线更换和养护；另一方面该结构改善了镶嵌块的受力状态，使得列车通过时镶嵌块与翼轨结构稳固不易移动，且增 强了镶嵌块轨头部位的粗壮度和受力强度。
需要理解的是，上述描述中的术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明实施例的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明实施例的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明实施例中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明实施例中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多 个实施例或示例中以合适的方式结合。此外，本领域的技术人员可以将本说明书中描述的不同实施例或示例进行接合和组合。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明的其它实施方案。本申请旨在涵盖本发明的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明的一般性原理并包括本发明未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本发明的真正范围和精神由所附的权利要求指出。

Claims (10)

  1. 一种固定型组合辙叉，其特征在于，包括：
    翼轨组，包括间隔设置的第一翼轨和第二翼轨；
    心轨，位于所述第一翼轨和第二翼轨之间；
    叉跟轨，包括间隔设置的第一叉跟轨和第二叉跟轨，所述第一叉跟轨设置于所述第一翼轨和所述心轨之间，其端部设置于所述心轨尾部靠近所述第一翼轨的侧壁上，所述第二叉跟轨设置于所述第二翼轨和所述心轨之间，其端部设置于所述心轨尾部靠近所述第二翼轨的侧壁上；
    镶嵌块组，包括设置在所述翼轨组咽喉部至预设位置之间，所述第一翼轨和第二翼轨相对侧面上，与所述第一翼轨内侧固定连接的第一镶嵌块和与所述第二翼轨内侧固定连接的第二镶嵌块；所述第一镶嵌块和所述第二镶嵌块均包括中间主体段和主体段两端的延伸段，所述第一镶嵌块的延伸段从位于所述主体段一端向自由端其轨头高度逐渐变窄、高度逐渐低于所述第一翼轨，所述第二镶嵌块的延伸段从位于所述主体段一端向自由端其轨头宽度逐渐变窄、高度逐渐低于所述第二翼轨；
    其中，所述第一镶嵌块与所述第一翼轨轨头侧面贴合且接触的面具有朝向所述第二翼轨预设斜度，所述第一镶嵌块与所述第一翼轨上颚之间具有预设缝隙，与所述第一翼轨下颚及轨肢侧面贴合，所述第二镶嵌块与所述第二翼轨轨头侧面紧贴且接触的面具有朝向所述第一翼轨预设斜度，所述第二镶嵌块与所述第二翼轨上颚之间具有预设缝隙，与所述第二翼轨下颚及轨肢侧面贴合。
  2. 根据权利要求1所述固定型组合辙叉，其特征在于，所述第一翼轨和第二翼轨为对称断面钢轨，所述第一翼轨安装所述第一镶嵌块处和所述第二翼轨安装所述第二镶嵌块处的轨头侧面采用铣削工艺进行处理。
  3. 根据权利要求1所述固定型组合辙叉，其特征在于，所述预设位置处为所述心轨轨头宽度为60±10mm处。
  4. 根据权利要求1所述固定型组合辙叉，其特征在于，所述延伸段为所述第一镶嵌块或所述第二镶嵌块轨头宽度为30±5mm处至自由端处。
  5. 根据权利要求1所述固定型组合辙叉，其特征在于，所述主体段轨 头形状与所接触的列车车轮踏面相匹配。
  6. 根据权利要求1所述固定型组合辙叉，其特征在于，沿所述固定型组合辙叉延伸方向上，每间隔预设距离，采用螺栓连接副将固定型组合辙叉进行统一连接。
  7. 根据权利要求1所述固定型组合辙叉，其特征在于，所述第一镶嵌块和所述第二镶嵌块轨头最宽为50mm～70mm。
  8. 根据权利要求1～7任一项所述固定型组合辙叉，其特征在于，所述预设斜度为2°～20°，所述预设缝隙为0.5mm～4mm。
  9. 根据权利要求8所述固定型组合辙叉，其特征在于，所述心轨、所述第一镶嵌块和所述第二镶嵌块均为锻造合金钢或铸造高锰钢制成。
  10. 根据权利要求9所述固定型组合辙叉，其特征在于，所述锻造合金钢的硬度大于等于360HBW，所述铸造高锰钢的硬度大于等于229HBW。
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