WO2022199588A1 - 一种无缝化组合辙叉 - Google Patents

一种无缝化组合辙叉 Download PDF

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Publication number
WO2022199588A1
WO2022199588A1 PCT/CN2022/082342 CN2022082342W WO2022199588A1 WO 2022199588 A1 WO2022199588 A1 WO 2022199588A1 CN 2022082342 W CN2022082342 W CN 2022082342W WO 2022199588 A1 WO2022199588 A1 WO 2022199588A1
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WIPO (PCT)
Prior art keywords
fork
rail
center
wing
frog
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PCT/CN2022/082342
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English (en)
French (fr)
Inventor
闫旭辉
严则会
李文博
李军志
施庆峰
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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 WO2022199588A1 publication Critical patent/WO2022199588A1/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
    • E01B7/12—Fixed frogs made of one part or composite
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2201/00—Fastening or restraining methods
    • E01B2201/04—Fastening or restraining methods by bolting, nailing or the like

Definitions

  • the invention relates to a method that can greatly shorten the matching length of the wing rails of the fork core, reduce the amount of the wing rails, reduce the manufacturing difficulty of the components, improve the manufacturing precision, and obviously reduce the difficulty of assembling the wing rails and the fork core, and can realize the seamless or flexible circuit.
  • the utility model relates to a seamless combined frog connected by seam, which belongs to the field of seamless frog manufacturing.
  • CN 201915302 U the name "a new type of welded wing-rail combined frog for railway track", including wing rails located on both sides and a core rail located between the wing rails, the wing rail is composed of ordinary steel rail sections at both ends and the middle.
  • the alloy steel rail section is welded with two welding seams; it is characterized in that a piece of reinforcing protection spacer iron is arranged between the core rail and the wing rails on both sides, and the welding seam near the toe end on the wing rail is located in the reinforcing protection spacer.
  • the core rail, the reinforced protection spacer iron and the wing rail are all provided with through-bolt connection holes, and the fixed installation is realized by the connection bolt assembly, as shown in Figure 12.
  • the existing problems are: (1) In Figure 12, the length of one piece of wing rail and the core rail is long, the rear end (end) position of the wing rail has exceeded the cross section of the core rail by 50mm, the amount of the wing rail and the matching range between the wing rail and the core rail Therefore, it is more difficult to manufacture in actual production. In addition, because the wing rails are welded in three sections with the same rail type but different materials, the welding process and welding quality are extremely demanding, and the promotion is difficult.
  • One piece of wing rail in Figure 12 is welded in three sections due to the same type of rail but different materials. There are 4 sections of welding seam in the two wing rails of a group of frogs. Carry out irregular flaw detection to increase the workload of combined frog maintenance.
  • the combined frog is mainly composed of fork core, wing rail, fork and heel rail, and is fixed and installed by bolt pair, two kinds of rail washers, and spacer iron.
  • the symmetrical structure is shown in Figure 1. Show.
  • (2) The spacers protruding from the vertical walls on both sides of the fork center are matched with the fish tails of the wing rails on both sides and the fork and heel rails, and the wheel load is transmitted through the path of the top of the fork center - the vertical wall - the bottom of the rail piece - the backing plate - the sleeper to ensure driving stability.
  • the fork center can be made of cast high manganese steel, forged high manganese steel or alloy steel; the wing rails are made of U75V or other materials.
  • the fork core is made of the same material. After the frog is in service, the life of the manganese fork core rail and wing rail is guaranteed.
  • the existing problems the overall fork center is made of cast high manganese steel, forged high manganese steel or alloy steel, the length of the wing rail and the fork center is large, and there are many parts, which increases the manufacturing cost, and it is difficult to achieve online or line Assemble interchangeably.
  • Design purpose To avoid the deficiencies in the background technology, to design a method that can greatly shorten the matching length of the fork center wing rail, reduce the amount of wing rails, reduce the difficulty of component manufacturing, improve the manufacturing accuracy, and make the assembly of the wing rail and the fork center difficult. It can be lowered and can realize the seamless combination frog with seamless or seamed connection.
  • the purpose of the present invention is to develop and design a seamless combined frog.
  • the combined frog is mainly composed of a fork core, a left fork heel rail, a right fork heel rail, a left wing rail, and a right wing rail.
  • the fork center can be made of high manganese steel, forged high manganese steel and alloy steel.
  • the front and rear sections of the fork center are spacer iron structures, and the front and rear spacer iron parts of the fork center cooperate with the wing rails and the fork heel rails, and are fastened and installed by bolt pairs.
  • the front and rear sections of the fork center are spaced iron structures, located in the L1 and L2 sections, respectively, and the wheel treads gradually decrease toward both ends, as shown in Figure 5-7.
  • the smooth transition of the wheel between the fork center and the wing rail, the fork center and the fork follower rail is respectively realized, so as to avoid the failure of the small tread of the fork center interval iron under the rolling action of the wheel.
  • the wheel-rail relationship is required.
  • the fork heel rail gradually transitions to the rear tread of the fork center, passes through the throat of the fork center, and then gradually transitions from the front tread of the fork center to the wing rail; the wheel passes through the combination in the reverse direction.
  • the wing rails gradually transition to the front tread of the fork center, through the throat of the fork center, and then the rear tread of the fork center gradually transitions to the fork heel rail.
  • the welding method realizes seamless connection with the line rails and improves the smoothness of the train passing through the frog; secondly, compared with the traditional structure combined frog structure, the fork center of this structure is the main structure of the combined frog, and the fork center cooperates with the wing rails.
  • the matching length L1 is shorter, and the limit position and front end of L1 are located at the throat of the pharyngeal combination frog, as shown in Figure 5-7, while the matching length between the wing rail and the fork center of the traditional structure exceeds the throat position, as shown in Figure 12, which is twice the length of this structure Therefore, the amount of wing rails has increased significantly.
  • the biggest disadvantage is that the length of the wing rail and the fork center is long, the manufacturing precision of the components is high, the manufacturing and assembly are extremely difficult, and the fork center cannot be interchanged and assembled.
  • the replacement is limited, the public workers need to replace the entire group of frogs, and the seamless line also needs to cut the rail welds.
  • the replacement cost of a group of frogs is only about 10,000 to 20,000 yuan. Short, the difficulty of single-piece manufacturing precision control is greatly reduced, and the interchangeable assembly in the manufacturing process and the online interchangeable assembly can be realized, reducing the cost of interchangeable assembly by more than 60%.
  • the fork center interval iron L1 and L2 are machined, and the bottom surface and the bottom surface of the middle area of the fork center have a stepped structure with a height difference of 0-40mm, which avoids interference between components and meets the quality requirements of the wing rail, fork and rail fit.
  • the fork center interval iron splint and the wing rail, the fork and the rail can be continuously matched and closely attached, and can also be intermittently matched and closely attached.
  • the fork core width dimensions A, B, C, D, E, and F are equal or unequal except for the L1 and L2 sections.
  • the front end to the rear end of the fork center covers the throat and the core rail width of 50mm.
  • the section with the weakest part of the combined frog from the core rail width of 50mm to the throat is located in the fork core area. When the train passes the combined frog, this area bears the wheel load alone.
  • the left wing rail, the right wing rail, the left fork heel rail, and the right fork heel rail are bent, and the bending angles G1, G2, G3, and G4 range from 0° to 35°, and the The rail head of the spacer iron matching part is sliced to improve the matching quality with the fork center.
  • the left wing rail, right wing rail, left fork and heel rail, and right fork and heel rail can be made of the same material as the line. "I-shaped" series rails.
  • the combination of the invention greatly shortens the matching length of the wing rails of the fork center, reduces the difficulty of machining and assembly, can realize the seamless or seamed connection of lines, and solves the problem that the fork center cannot be connected online,
  • the problem of offline interchange assembly structure has high promotion value. Its key technical points: (1) As shown in Figure 5-7, the front and rear sections of the fork center are spaced iron structures, located in the L1 section and the L2 section respectively, and the wheel tread gradually decreases toward both ends. (2) As shown in Figure 1-4, the left fork heel rail, the right fork heel rail, the left wing rail, the right wing rail and the fork core spacer iron L1 and L2 sections of the combined frog are installed through bolt pairs.
  • the fork core width dimensions A, B, C, D, E, F are equal or unequal except for the L1 and L2 sections. .
  • the front end to the rear end of the fork center covers the 50mm cross-section area of the throat and the heart rail width, and the section with the heart rail width of 50mm from the weakest part of the combined frog strength to the throat section is located in the fork center area , bear the wheel load alone.
  • the left wing rail, right wing rail, left fork track, and right fork track are bent, and the bending angle range: the bending angles G1, G2, G3, and G4 are respectively 0° ⁇ 35°, the rail head of the fitting part with the spacer iron of the fork has been sliced.
  • the fork center interval iron L1 and L2 are machined, and the bottom surface and the bottom surface of the middle area of the fork center are in a stepped structure, and the height difference is 0 ⁇ 40mm.
  • Left wing rail, right wing rail, The left fork heel rail and the right fork heel rail can be made of the same material as the line. Rails.
  • a seamless combined frog including a fork core, a wing rail, and a fork heel rail, the front L1 section of the fork core and the rear section L2 of the fork core are respectively provided with a fork center front spacer iron and a fork center rear spacer iron ,
  • the spacer iron at the front of the fork center and the spacer iron at the back of the fork center are matched with the wing rail, the fork and the heel rail, and the bolt pair is used to realize the fastening and installation.
  • the present invention Compared with the background technology, the present invention has a shorter matching length between the wing rail and the fork core compared with the background technology 1, which is about 1/4 of the matching length of the background technology 1. There is no spacer iron and inner splint in Fig. 12. Therefore, the present invention has fewer components, simple structure, and is suitable for mass production; the main structural components of the background art are core rails, wing rails, and welding section wing rails, and the center rail and welding section wing rails are made of alloy steel.
  • Damaged parts or parts that are prone to failure, and the main structural part of the present invention is the fork core, which can be made of various materials or processes, such as casting high-manganese steel, forging high-manganese steel, alloy steel materials, etc., and the material adaptability is wider.
  • the main structure fails during the service process, and it can be interchanged and assembled online, with low manufacturing cost and low maintenance cost.
  • the main body of the combined frog of the present invention is the fork core, and there are few other parts.
  • the third is that the combined frog of the present invention greatly shortens the length of the fork center wing-rail matching, reduces the amount of wing-rails, reduces the difficulty of component manufacturing, and improves the manufacturing Precision, the difficulty of assembling the wing rail and the fork core is significantly reduced, and the line can be connected seamlessly or with seams, which solves the structural problem that the traditional combined frog core cannot be interchangeably assembled online and offline, and has high market promotion value. .
  • Figure 1 is a schematic top view of the seamless combined frog.
  • FIG. 2 is a schematic view of the cross-sectional structure taken along the line A-A in FIG. 1 .
  • FIG. 3 is a schematic view of the cross-sectional structure taken along the line B-B in FIG. 1 .
  • FIG. 4 is a schematic view of the cross-sectional structure along the C-C direction in FIG. 1 .
  • Fig. 5 is a schematic diagram of a spacer iron structure in the front section and the rear section of the fork core.
  • FIG. 6 is a schematic view of the front tread of the fork in FIG. 5 .
  • FIG. 7 is a schematic view of the rear tread of the fork in FIG. 5 .
  • Figure 8 is a schematic diagram of the left wing rail structure.
  • Figure 9 is a schematic diagram of the structure of the right wing rail.
  • Figure 10 is a schematic diagram of the left fork and heel rail structure.
  • Figure 11 is a schematic diagram of the structure of the right fork and heel rail.
  • Figure 12 is a schematic diagram of Background Art 1. In the figure, 1. Front end of ordinary rail 2. Bolt pair 3. Welding seam 4. Welding section wing rail 5. Rear section of ordinary rail 6. Spacer iron 7. Inner splint 8. Outer splint.
  • FIG. 13 is a schematic top view of Background Art 2.
  • FIG. 14 is a schematic cross-sectional view of part A-A in FIG. 13 .
  • Figure 15 is a schematic cross-sectional view of part B-B in Figure 13, in the figure 1.
  • A-type rail washer 2.
  • Manganese fork center 3.
  • B-type rail washer 4.
  • Bolt pair 5.
  • Wing rail 7.
  • Figure 16 is a schematic sectional view of the C-C part in Figure 13, in the figure 6.
  • Embodiment 1 Refer to Figure 1 .
  • a seamless combined frog comprising a fork core, a wing rail, and a fork heel rail, characterized in that: the front section L1 of the fork core and the rear section L2 of the fork core are respectively provided with a spacer iron 9 before the fork core and a rear section of the fork core.
  • the spacer iron 10, the spacer iron 9 in front of the fork center and the spacer iron 10 in the rear of the fork center are matched with the wing rails 4 and 5 and the fork and heel rails 2 and 3, and the bolt pair 6 is used to realize the fastening and installation.
  • the wing rails refer to the left wing rail 4 and the right wing rail 5 .
  • the fork heel rail refers to the left fork heel rail 2 and the right fork root rail 3 .
  • the left wing rail 4, the right wing rail 5, the left fork track 2, and the right fork track 3 are bent, and the bending angle ranges G1, G2, G3, and G4 are respectively 0° to 35° ( G refers to rail).
  • the rear tread surface 7 of the fork center and the front tread surface 8 of the fork center are gradually lowered to both ends respectively.
  • the fork heel rail gradually transitions to the rear tread surface of the fork center, passes through the fork center throat 13, and then passes through the fork center throat 13.
  • the front tread of the fork center gradually transitions to the wing rail; when the wheel passes through the combined frog in the reverse direction, the wing rail gradually transitions to the front tread of the fork center, passes through the throat of the fork center, and then the rear tread of the fork center gradually transitions to the fork heel rail.
  • the bottom surface of the spacer iron 9 in front of the fork center and the spacer iron 10 behind the fork center and the bottom surface of the middle area of the fork center are in a stepped structure, and the height difference is 0-40 mm.
  • the fork center spacing iron splint 11 and the wing rail, the fork and the heel rail are in continuous fit and close contact, or intermittently fit and closely fit.
  • the left wing rail, the right wing rail, the left fork heel rail, the right fork heel rail and the front spacer iron 9 of the fork center and the rear spacer iron 10 of the fork center are sliced with the rail head, and the front end 12 to the rear end 15 of the fork center cover the throat and the throat.
  • the core rail width is 50mm in the section area, the weakest part of the combined frog is in the core rail width 50mm section and the throat section is located in the fork core area, which bears the wheel load alone.
  • the left wing rail, right wing rail, left fork and heel rail, and right fork and heel rail are made of steel rails of the same material as the line. 54E1, BS100A, BS80A I-shaped rails.
  • the values of the width dimensions A, B, C, D, E, and F of the fork center are equal or not equal.
  • the invention relates to a seamless combined frog, which comprises a fork core, a wing rail, and a fork heel rail.
  • the L1 section of the front section of the fork core and the L2 section of the rear section of the fork core are respectively provided with a fork core front spacer iron and a fork center rear spacer iron ,
  • the spacer iron at the front of the fork center and the spacer iron at the back of the fork center are matched with the wing rail, the fork and the heel rail, and the bolt pair is used to realize the fastening and installation.
  • the matching length between the wing rail and the fork center of the present invention is shorter, which is about 1/4 of the matching length of the background technology, and there is no intermediate spacer iron and inner splint. Therefore, the present invention has a simple structure and is suitable for large
  • the second is the background technology.
  • the main structural components are the core rail, the wing rail, and the welded section wing rail.
  • the material of the central rail and the welded section wing rail is alloy steel.
  • the main structural component is the fork core, which can be made of various materials or processes, and the material adaptability is wider. If the main structure fails during the service process, it can be interchanged and assembled online, with low manufacturing cost and low maintenance cost.
  • seamless modular frog of the present application is desirable and can be used in a variety of industrial applications.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

一种无缝化组合辙叉，包括叉心、翼轨（4，5）、叉跟轨（2，3），叉心前段L1段和叉心后段L2段分别有叉心前间隔铁（9）和叉心后间隔铁（10），叉心前间隔铁（9）和叉心后间隔铁（10）部位与翼轨（4，5）、叉跟轨（2，3）配合，使用螺栓副（6）实现紧固及安装。该辙叉的翼轨与叉心配合长度较短，无中间隔铁、内侧夹板，结构简单，适合大批量生产；该辙叉的主体结构部件是叉心，叉心可选用多种材质或工艺制造，材料适应性更广，在服役过程中如果主体结构失效，可在线互换组装，制造成本低，养护成本低。

Description

一种无缝化组合辙叉
相关申请的交叉引用
本申请要求在2021年3月22日提交的，申请号为202110300832.5，名称为“一种无缝化组合辙叉”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申请中。
技术领域
本发明涉及一种既能大幅缩短叉心翼轨配合长度，减少了翼轨用量，降低组件制造难度，提高制造精度，使翼轨与叉心组装难度明显降低，又能实现线路无缝或有缝连接的无缝化组合辙叉，属无缝辙叉制造领域。
背景技术
1、CN 201915302 U、名称“一种铁路轨道用新型焊接翼轨组合辙叉”，包括设于两侧的翼轨和位于翼轨之间的心轨，翼轨由两端的普通钢轨段与中间的合金钢钢轨段焊接而成，具有两道焊缝；其特征在于，所述心轨与两侧的翼轨之间各设置一片加强保护间隔铁，翼轨上靠近趾端的焊缝位于加强保护间隔铁的长度范围内；心轨、加强保护间隔铁和翼轨上均设有贯通的螺栓联结孔，通过联接螺栓组件实现固定安装，见图12。其存在的问题是：(1)图12中1件翼轨与心轨配合长度较长，翼轨后端(末端)位置已超过心轨50mm断面，翼轨用量及翼轨与心轨配合范围较大，因此，在实际生产中制造难度较大，另外由于翼轨采用同轨型而不同材质钢轨分三段焊接而成，对焊接工艺、焊接质量要求极高，推广难度较大，零部件较多，组装难度大，制造成本高，且不能实现心轨互换组装。(2)图12中1件翼轨由于翼轨采用同轨型而不同材质钢轨分三段焊接而成，一组辙叉2个翼轨存在4段焊缝，上线后工务人员需对焊缝进行不定期探伤，增加组合辙叉养护工作量。
2、传统组合辙叉结构：(1)组合辙叉主要由叉心、翼轨、叉跟轨组 成，使用螺栓副、两种钢轨垫圈、间隔铁栓接固定安装，对称结构，如图1所示。(2)叉心两侧立墙凸出的间隔板与其两侧翼轨、叉跟轨的鱼尾配合，并通过叉心顶部-立墙-钢轨件底部-垫板-轨枕路径传递车轮载荷，保证行车稳定性。(3)叉心可选铸造高锰钢、锻造高锰钢、合金钢材质制造；翼轨选用U75V或其他材质制造。(4)叉心选用同一种材质制造，辙叉服役后，确保锰叉心心轨、翼轨等寿命。其存在的问题：叉心整体选用铸造高锰钢、锻造高锰钢或合金钢制造，翼轨与叉心配合长度较大，零部件多，增大了制造成本，且难以实现线上或线下互换组装。
发明内容
设计目的：避免背景技术中的不足之处，设计一种既能大幅缩短叉心翼轨配合长度，减少了翼轨用量，降低组件制造难度，提高制造精度，使翼轨与叉心组装难度明显降低，又能实现线路无缝或有缝连接的无缝化组合辙叉。
设计方案：本发明旨在研发设计一种无缝化组合辙叉，如图1-4所示，组合辙叉主要由叉心、左叉跟轨、右叉跟轨、左翼轨、右翼轨通过螺栓副连接组成。叉心可采用高锰钢、锻造高锰钢、合金钢材料制造。叉心前段和后段为间隔铁结构，叉心前后间隔铁部位与翼轨、叉跟轨配合，使用螺栓副实现紧固及安装。
如图5-7所示，叉心前段和后段呈间隔铁结构，分别位于L1段和L2段，车轮踏面分别向两端逐渐降低，如图5-7中趾端降低段和跟端降低段，在列车通过该段时，分别实现车轮在叉心与翼轨、叉心与叉跟轨之间平顺过渡，避免叉心间隔铁较小踏面在车轮碾压作用下失效问题的发生，符合轮轨关系要求，例如车轮在顺向通过组合辙叉时，由叉跟轨逐渐向叉心后踏面过渡，通过叉心咽喉，再由叉心前踏面逐渐向翼轨过渡；车轮在逆向通过组合辙叉时，由翼轨逐渐向叉心前踏面过渡，通过叉心咽喉，再有叉心后踏面逐渐向叉跟轨过渡，此结构主要目的是：一是组合辙叉通过“铝热焊”焊接方式，实现与线路钢轨无缝化对接，提高列车通过辙叉的平顺性；二是与传统结构组合辙叉结构相比，此结构叉心为组合辙叉主体结构，叉心与翼轨配合配合长度L1较短，L1极限位置 及前端位于咽组合辙叉咽喉位置，见图5-7，而传统结构翼轨与叉心配合长度超过咽喉位置，见图12，是此结构长度的2倍以上，因此，翼轨用量明显增多，最大弊端是翼轨与叉心配合长度较长，组件制造精度要求高，制造组装难度极大，不能实现叉心互换组装，同时组合辙叉在服役到限更换时，工务人员需整组辙叉进行更换，无缝线路还需切割钢轨焊缝，一组辙叉仅更换费用约1～2万元，而此结构翼轨与叉心配合面较短，单件制造精度控制难度大幅降低，可实现制造过程互换组装及线上互换组装，降低了60％以上的互换组装成本。叉心间隔铁L1段和L2进行机加工，底面与叉心中间区域底面呈台阶结构，高差值0～40mm，避免组件之间干涉，同时满足翼轨、叉跟轨配合质量要求。叉心间隔铁夹板与翼轨、叉跟轨可是连续配合密贴、也可断续配合密贴。根据辙叉对应的不同道岔垫板安装尺寸要求，除L1和L2段叉心宽度尺寸A、B、C、D、E、F等值相等或不相等。叉心前端至后端涵盖咽喉和心轨宽50mm断面区域，组合辙叉强度最薄弱部位心轨宽50mm断面至咽喉段位于叉心区域，列车通过组合辙叉时，该区域单独承受车轮载荷。
如图8至图11所示，左翼轨、右翼轨、左叉跟轨、右叉跟轨进行弯折，弯折角度G1、G2、G3、G4折弯范围0°～35°，与叉心间隔铁配合部位轨头进行了刨切，提高与叉心配合质量。左翼轨、右翼轨、左叉跟轨、右叉跟轨可选用与线路同材质钢轨制造，轨型为43kg、50kg、60kg、75kg、115RE、132RE、136RE、60E1、54E1、BS100A、BS80A等“工字型”系列钢轨。
本发明组合通过对辙叉前后轮轨关系转换部位进行创新设计，大幅缩短叉心翼轨配合长度，降低机加工、组装难度，能够实现线路无缝或有缝连接，解决叉心无法线上、线下互换组装结构难题，具有较高的推广价值。其关键技术要点：(1)如图5-7所示，叉心前段和后段呈间隔铁结构，分别位于L1段和L2段，车轮踏面分别向两端逐渐降低。(2)如图1-4所示，组合辙叉左叉跟轨、右叉跟轨、左翼轨、右翼轨与叉心间隔铁L1段和L2段通过螺栓副安装。(3)如图5-7所示，根据辙叉对应的不同道岔垫板安装尺寸要求，除L1和L2段叉心宽度尺寸A、B、C、D、E、F等值相等或不相等。(4)如图1-4、图5-7所示叉心前端至后端 涵盖咽喉和心轨宽50mm断面区域，组合辙叉强度最薄弱部位心轨宽50mm断面至咽喉段位于叉心区域，单独承受车轮载荷。(5)如图8至图11所示，左翼轨、右翼轨、左叉跟轨、右叉跟轨进行弯折，弯折角度范围：弯折角度G1、G2、G3、G4分别为0°～35°，与叉心间隔铁配合部位轨头进行了刨切。(6)如图5-7所示，叉心间隔铁L1段和L2进行机加工，底面与叉心中间区域底面呈台阶结构，高差值0～40mm，(7)左翼轨、右翼轨、左叉跟轨、右叉跟轨可选用与线路同材质钢轨制造，轨型可为43kg、50kg、60kg、75kg、115RE、132RE、136RE、60E1、54E1、BS100A、BS80A等“工字型”系列钢轨。
技术方案：一种无缝化组合辙叉，包括叉心、翼轨、叉跟轨，所述叉心前段L1段和叉心后段L2段分别有叉心前间隔铁和叉心后间隔铁，叉心前间隔铁和叉心后间隔铁部位与翼轨、叉跟轨配合，使用螺栓副实现紧固及安装。
本发明与背景技术相比，一是与背景技术1相比，本发明翼轨与叉心配合长度较短，约是背景技术1配合长度的1/4，无图12中间隔铁、内侧夹板，因此本发明组件较少，结构简单，适合大批量生产；背景技术主体结构部件是心轨、翼轨、焊接段翼轨，其中心轨和焊接段翼轨材质是合金钢，主体部件是易伤损部件或易失效部件，而本发明主体结构部件是叉心，叉心可选用多种材质或工艺制造，如铸造高锰钢、锻造高锰钢、合金钢材料等，材料适应性更广，在服役过程中主体结构失效，可在线互换组装，制造成本低，养护成本低。
二是与传统组合辙叉结构相比，本发明组合辙叉主体是叉心，其它零部件较少，叉心若选用高锰钢制造，解决了整铸高锰钢辙叉无法应用于无缝线路的难题；三是本发明组合辙叉通过对辙叉前后轮轨关系转换部位进行创新设计，大幅缩短叉心翼轨配合长度，减少了翼轨用量，降低了组件制造难度，提高了制造精度，翼轨与叉心组装难度明显降低，能够实现线路无缝或有缝连接，解决了传统组合辙叉叉心无法线上、线下互换组装的结构难题，具有较高的市场推广价值。
附图说明
图1是无缝化组合辙叉俯视结构示意图。
图2是图1中A-A向剖视结构示意图。
图3是图1中B-B向剖视结构示意图。
图4是图1中C-C向剖视结构示意图。
图5是叉心前段和后段呈间隔铁结构示意图。
图6是图5中叉心前踏面示意图。
图7是图5中叉心后踏面示意图。
图8是左侧翼轨结构示意图。
图9是右侧翼轨结构示意图。
图10是左侧叉跟轨结构示意图。
图11是右侧叉跟轨结构示意图。
图12是背景技术1示意图，图中1.普通钢轨前端2.螺栓副3.焊缝4.焊接段翼轨5.普通钢轨后段6.间隔铁7.内侧夹板8.外侧夹板。
图13是背景技术2俯视示意图。
图14是图13中A-A部剖视示意图。
图15是图13中B-B部剖视示意图，图中1.A型钢轨垫圈2.锰叉心3.B型钢轨垫圈4.螺栓副5.翼轨。
图16是图13中C-C部剖视示意图，图中6.叉跟轨7.间隔铁。
具体实施方式
实施例1：参照附图1。一种无缝化组合辙叉，包括叉心、翼轨、叉跟轨，其特征是：所述叉心前段L1段和叉心后段L2段分别有叉心前间隔铁9和叉心后间隔铁10，叉心前间隔铁9和叉心后间隔铁10部位与翼轨4和5、叉跟轨2和3配合，使用螺栓副6实现紧固及安装。所述翼轨是指左侧翼轨4和右侧翼轨5。所述叉跟轨是指左侧叉跟轨2和右侧叉根轨3。所述左侧翼轨4、右侧翼轨5、左侧叉跟轨2、右侧叉跟轨3进行弯折，弯折角度范围G1、G2、G3、G4分别为0°～35°(G指钢轨)。所述叉心后踏面7和叉心前踏面8分别向两端逐渐降低，车轮在顺向通过组合辙叉时，由叉跟轨逐渐向叉心后踏面过渡，通过叉心咽喉13，再 由叉心前踏面逐渐向翼轨过渡；车轮在逆向通过组合辙叉时，由翼轨逐渐向叉心前踏面过渡，通过叉心咽喉，再有叉心后踏面逐渐向叉跟轨过渡。所述叉心前间隔铁9和叉心后间隔铁10底面与叉心中间区域底面呈台阶结构，高差值0～40mm。所述叉心间隔铁夹板11与翼轨、叉跟轨为连续配合密贴，或断续配合密贴。所述左翼轨、右翼轨、左叉跟轨、右叉跟轨与叉心前间隔铁9和叉心后间隔铁10配合部位轨头进行刨切，叉心前端12至后端15涵盖咽喉和心轨宽50mm断面区域，组合辙叉强度最薄弱部位心轨宽50mm断面至咽喉段位于叉心区域，单独承受车轮载荷。所述左侧翼轨、右侧翼轨、左侧叉跟轨、右侧叉跟轨选用与线路同材质钢轨制造，轨型为43kg、50kg、60kg、75kg、115RE、132RE、136RE、60E1、54E1、BS100A、BS80A工字型钢轨。根据辙叉对应的不同道岔垫板安装尺寸要求，除叉心前段L1段和叉心后段L2段外，叉心宽度尺寸A、B、C、D、E、F的值相等或不相等。
需要理解到的是：上述实施例虽然对本发明的设计思路作了比较详细的文字描述，但是这些文字描述，只是对本发明设计思路的简单文字描述，而不是对本发明设计思路的限制，任何不超出本发明设计思路的组合、增加或修改，均落入本发明的保护范围内。
工业实用性
本发明涉及一种无缝化组合辙叉，包括叉心、翼轨、叉跟轨，所述叉心前段L1段和叉心后段L2段分别有叉心前间隔铁和叉心后间隔铁，叉心前间隔铁和叉心后间隔铁部位与翼轨、叉跟轨配合，使用螺栓副实现紧固及安装。优点：与背景技术1相比，一是本发明翼轨与叉心配合长度较短，约是背景技术配合长度的1/4，无中间隔铁、内侧夹板，因此本发明结构简单，适合大批量生产；二是背景技术主体结构部件是心轨、翼轨、焊接段翼轨，其中心轨和焊接段翼轨材质是合金钢，主体部件是易伤损部件或易失效部件，而本发明主体结构部件是叉心，叉心可选用多种材质或工艺制造，材料适应性更广，在服役过程中如果主体结构失效，可在线互换组装，制造成本低，养护成本低。
此外，可以理解的是，本申请的无缝化组合辙叉是可以重视的，并 且可以用在多种工业应用中。

Claims (10)

  1. 一种无缝化组合辙叉，包括叉心、翼轨、叉跟轨，其特征是：所述叉心前段L1段和叉心后段L2段分别有叉心前间隔铁(9)和叉心后间隔铁(10)，叉心前间隔铁(9)和叉心后间隔铁(10)部位与翼轨(4，5)、叉跟轨(2，3)配合，使用螺栓副(6)实现紧固及安装。
  2. 根据权利要求1所述的无缝化组合辙叉，其特征是：所述翼轨是指左侧翼轨(4)和右侧翼轨(5)。
  3. 根据权利要求1所述的无缝化组合辙叉，其特征是：所述叉跟轨是指左侧叉跟轨(2)和右侧叉根轨(3)。
  4. 根据权利要求1所述的无缝化组合辙叉，其特征是：所述左侧翼轨(4)、右侧翼轨(5)、左侧叉跟轨(2)、右侧叉跟轨(3)进行弯折，弯折角度范围G1、G2、G3、G4分别为0°～35°。
  5. 根据权利要求1所述的无缝化组合辙叉，其特征是：所述叉心后踏面(7)和叉心前踏面(8)分别向两端逐渐降低，车轮在顺向通过组合辙叉时，由叉跟轨逐渐向叉心后踏面过渡，通过叉心咽喉(13)，再由叉心前踏面逐渐向翼轨过渡；车轮在逆向通过组合辙叉时，由翼轨逐渐向叉心前踏面过渡，通过叉心咽喉，再有叉心后踏面逐渐向叉跟轨过渡。
  6. 根据权利要求1所述的无缝化组合辙叉，其特征是：所述叉心前间隔铁(9)和叉心后间隔铁(10)底面与叉心中间区域底面呈台阶结构，高差值0～40mm。
  7. 根据权利要求1所述的无缝化组合辙叉，其特征是：所述叉心间隔铁夹板(11)与翼轨、叉跟轨为连续配合密贴，或断续配合密贴。
  8. 根据权利要求1所述的无缝化组合辙叉，其特征是：所述左翼轨、右翼轨、左叉跟轨、右叉跟轨与叉心前间隔铁(9)和叉心后间隔铁(10)配合部位轨头进行刨切，叉心前端(12)至后端(15)涵盖咽喉和心轨宽50mm断面区域，组合辙叉强度最薄弱部位心轨宽50mm断面至咽喉段位于叉心区域，单独承受车轮载荷。
  9. 根据权利要求1所述的无缝化组合辙叉，其特征是：所述左侧翼轨、右侧翼轨、左侧叉跟轨、右侧叉跟轨选用与线路同材质钢轨制造，轨型为 43kg、50kg、60kg、75kg、115RE、132RE、136RE、60E1、54E1、BS100A、BS80A工字型钢轨。
  10. 根据权利要求1所述的无缝化组合辙叉，其特征是：根据辙叉对应的不同道岔垫板安装尺寸要求，除叉心前段L1段和叉心后段L2段外，叉心宽度尺寸A、B、C、D、E、F的值相等或不相等。
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