WO2018165784A1 - 一种镶心式高锰钢辙叉结构 - Google Patents

一种镶心式高锰钢辙叉结构 Download PDF

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Publication number
WO2018165784A1
WO2018165784A1 PCT/CN2017/000732 CN2017000732W WO2018165784A1 WO 2018165784 A1 WO2018165784 A1 WO 2018165784A1 CN 2017000732 W CN2017000732 W CN 2017000732W WO 2018165784 A1 WO2018165784 A1 WO 2018165784A1
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WO
WIPO (PCT)
Prior art keywords
manganese steel
high manganese
connecting section
steel frog
insert
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PCT/CN2017/000732
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English (en)
French (fr)
Inventor
曹衍学
王小帆
李振
安志磊
丁志敏
杨院生
赵国群
顾正
Original Assignee
山东远大特材科技股份有限公司
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Application filed by 山东远大特材科技股份有限公司 filed Critical 山东远大特材科技股份有限公司
Priority to US16/030,875 priority Critical patent/US20180320322A1/en
Publication of WO2018165784A1 publication Critical patent/WO2018165784A1/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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C22/00—Alloys based on manganese

Definitions

  • the invention relates to the technical field of railway ballasts, in particular to a heart-shaped high manganese steel frog structure.
  • the frog is a key component of the railway ballast system, and the high manganese steel frog is widely used worldwide for its unique characteristics. As the mileage of railway operations in China continues to increase, the demand for high manganese steel frogs continues to increase. At the same time, the increase in railway carrying capacity and speed has also accelerated the wear of high manganese steel frogs and reduced the service life of the frogs. The study found that the high manganese steel frog is not the overall damage, but there is a local harmful space. In the harmful space range, the surface of the high manganese steel frog is prone to peel off and affect the normal use, while the high manganese steel frog itself It is not easy to repair, so it can only be scrapped directly, which causes great waste.
  • the object of the present invention is to solve the problems existing in the prior art, and to design a heart-shaped high manganese steel frog structure, which can save cost and satisfy the use by conveniently replacing the vulnerable parts.
  • the present invention provides a heart-shaped high manganese steel frog structure, which comprises: a high manganese steel frog body and an insert, and the high manganese steel frog body is integrally casted,
  • the utility model comprises a wing rail connecting section, a fork core section and a fork rail connecting section, wherein the wing rail connecting section and the fork rail connecting section are respectively disposed at front and rear ends of the fork core section, and the front side of the fork core section is useful
  • the high manganese steel frog body is detachably coupled to the insert to fit the mounting groove of the mounting core.
  • the insert core includes an upper connecting section having a triangular shape in a plan view, a lower connecting section coupled to the mounting groove, and a circular arc transition is disposed between the tip end of the upper connecting section and the upper end surface of the lower connecting section, and the upper connecting section
  • the rear end surface is coupled to the front end surface of the fork core segment, and the upper end surface of the insert core is in the same plane as the upper end surface of the fork core segment.
  • the sides of the left and right sides of the lower connecting section are inclined from top to bottom and from the outside to the inside, and the angle between the side surface and the vertical direction is 2° to 4°.
  • the rear end surface of the above-mentioned insert is inclined from the top to the bottom and from the inside to the outside, and the angle between the rear end surface of the insert and the vertical direction is 2° to 4°.
  • the upper connecting section and the front end surface of the fork core section are closely matched to ensure the smoothness and stability of the transition between the insert core and the fork core section.
  • the lower connecting section closely cooperates with the mounting groove to form a contact slope, which effectively prevents the core from being swayed up and down when the vehicle passes.
  • a bolt hole I is disposed on the mounting groove at intervals along the longitudinal direction thereof, and a bolt mounting hole I corresponding to the bolt hole I is disposed on the lower end surface of the insert core, and the insert core and the fork body are fixedly connected by bolts. Easy to disassemble and install, it is easy to maintain and replace when it is worn, saving cost.
  • An anti-rotation washer and a spring washer are arranged between the bolt and the high manganese steel frog body to prevent the bolt from rotating and ensure the stability of the connection between the insert and the high manganese steel frog body.
  • a circular arc transition is respectively disposed between the left and right side surfaces of the upper connecting section and the upper end surface of the upper connecting section, and the left and right side surfaces of the upper connecting section and the upper end surface of the lower connecting section.
  • the width of the upper end end of the upper connecting section is set to be 60 mm to 110 mm, which serves as a reference for facilitating the design of the mounting groove and the insert core.
  • the left and right sides of the mounting groove are respectively provided with rim grooves.
  • the left and right side contour lines of the upper end surface of the lower connecting portion are respectively arranged coincident with the center line of the bottom of the rim groove.
  • the beneficial effects of the present invention can be obtained by the above solution: 1. Since the frog is not damaged overall during use, but is partially damaged in the harmful space, in the present invention, the body of the high manganese steel frog and the core can be Disassembly and connection, can easily replace the vulnerable parts, save cost and meet the requirements of use; 2, because the core part is a vulnerable part, the core can be made of different materials and production processes from the high manganese steel casting fork body. It is convenient to further improve the use performance of the replaceable core, reduce the wear amount and the wear speed; 3. In the invention, the rear end surface of the insert core is inclined from the top to the bottom and from the inside to the outside, forming a contact slope surface II, which can ensure the core and the installation.
  • the grooves are tightly matched to prevent the core from being swayed up and down when the vehicle passes; the left and right sides of the lower connecting section of the core are inclined from top to bottom and from the outside to the inside to form a contact slope I for easy replacement of the core.
  • the invention has reasonable design and is safe and reliable to use.
  • the present invention has outstanding substantial features and significant advances compared to the prior art, and the beneficial effects of its implementation are also apparent.
  • Figure 1 is a schematic view of the structure of the present invention
  • Figure 3 is a front elevational view showing the core of the present invention.
  • Figure 4 is a half cross-sectional view showing the core of the present invention.
  • Figure 5 is a top plan view of the fork body of the present invention.
  • Figure 6 is a front elevational view showing the fork body of the present invention.
  • Figure 7 is a cross-sectional view taken along line D in Figure 1;
  • Figure 8 is an enlarged schematic view of B in Figure 7;
  • Figure 9 is a cross-sectional view taken along line E of Figure 1;
  • Figure 10 is a cross-sectional view taken along line F in Figure 1;
  • 1 is a high manganese steel frog body
  • 2 is an insert core
  • 2-1 is a circular transition
  • 2-2 is a lower connecting section
  • 2-3 is an upper connecting section
  • 2-4 is a contact inclined surface II
  • 2- 5 is the bolt mounting hole I
  • 2-6 is the contact slope I
  • 2-7 is the angle ⁇
  • 2-8 is the angle ⁇
  • 3 is the fork core section
  • 4 is the bolt mounting hole
  • 5 is the mounting groove
  • 6 is
  • Bolt holes I, 7 are bolts
  • 8 is a spring washer
  • 9 is an anti-rotation washer
  • 10 is a fork rail connection section
  • 11 is a rim groove.
  • the present invention provides a heart-shaped high manganese steel frog structure comprising a high manganese steel frog body 1 and an insert 2, and a high manganese steel frog body 1 is integrally cast, including a wing rail connecting section, The fork section 3 and the fork rail connection section 10, the wing rail connection section and the fork rail connection section 10 are respectively disposed at the front and rear ends of the fork section 3, and the front of the fork section 3 is provided to cooperate with the mounting of the insert 2
  • the mounting groove 5, the high manganese steel frog body 1 is detachably connected to the insert 2.
  • the insert core 2 includes an upper connecting section 2-3 having a triangular shape in a plan view, a lower connecting section 2-2 mated with the mounting groove 5, a tip end of the upper connecting section 2-3 and an upper end surface of the lower connecting section 2-2.
  • a circular arc transition 2-1 is provided between the rear end faces of the upper connecting segments 2-3 and the front end faces of the inner core segments 3, and the upper end faces of the insert cores 2 are in the same plane as the upper end faces of the inner core segments 3.
  • the sides of the left and right sides of the lower connecting section 2-2 are inclined from top to bottom and from the outside to the inside to form a contact slope I2-6, and the angle ⁇ 2-7 of the contact slope I2-6 and the vertical direction is 2° to 4 °.
  • the rear end surface of the core 2 includes a rear end surface of the upper connecting portion 2-3 and a rear end surface of the lower connecting portion 2-2.
  • the rear end surface of the upper connecting portion 2-3 and the lower connecting portion 2-2 The rear end surface is overlapped, and the rear end surface of the above-mentioned insert core 2 is inclined from above to below and from the inside to the outside to form a contact inclined surface II2-4, and the angle ⁇ 2-8 between the contact inclined surface II2-4 and the vertical direction is 2°. ⁇ 4°.
  • the angle ⁇ 2-8 is set to 3°
  • the angle ⁇ 2-7 is set to 3°.
  • the upper connecting section and the front end surface of the fork core section are closely matched to ensure the smoothness and stability of the transition between the insert core and the fork core section.
  • the lower connecting section and the mounting groove are closely matched to prevent the core from being swayed up and down when the vehicle passes.
  • the width of the upper end end of the upper connecting section 2-3 is set to be 60 mm to 110 mm. Between the left and right side surfaces of the upper connecting section 2-3 and the upper end surface of the upper connecting section 2-3, the left and right side surfaces of the upper connecting section 2-3 and the upper end surface of the lower connecting section 2-2 are respectively disposed between Arc transition. In this embodiment, the width of the upper end end of the upper connecting section 2-3 is set to 80 mm.
  • the left and right sides of the mounting groove 5 are respectively provided with rim grooves 11.
  • the left and right sides of the upper end surface of the lower connecting portion 2-2 are contoured. They are respectively arranged coincident with the center line of the bottom of the rim groove 5.
  • the length dimension of the lower connecting section 2-2 can be adjusted accordingly to ensure that the size is easy to process and reduce the error.
  • a bolt hole I6 is disposed on the mounting groove 5 at intervals along the longitudinal direction thereof, and a bolt mounting hole I2-5 corresponding to the bolt hole I6 is disposed on the lower end surface of the insert core 2, and the insert core 2 and the fork body are fixedly connected by bolts. .
  • An anti-rotation washer 9 and a spring washer 8 are disposed between the bolt and the high manganese steel frog body.
  • a bolt mounting hole 4 for connecting to the rail is provided on both side walls of the fork body, and the bolt mounting hole 4 is located below the bottom surface of the mounting groove 5.
  • the detachable connection between the high manganese steel frog body 1 and the insert 2 can easily replace the vulnerable portion, thereby saving The cost can meet the requirements of use at the same time; in addition, considering that the part of the core 2 is a vulnerable part, the insert 2 can adopt different materials and production processes from the main body of the high manganese steel, which is convenient for further improving the performance of the insert 2. Reduce wear and wear rate.
  • the invention has reasonable design, safe and reliable use, and is worth promoting.

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Abstract

一种镶心式高锰钢辙叉结构，包括高锰钢辙叉本体(1)和镶芯(2)，高锰钢辙叉本体(1)整铸成型，包括翼轨连接段、叉心段(3)和叉跟轨连接段(10)，翼轨连接段和叉跟轨连接段(10)分别设置在叉心段(3)的前后两端，叉心段(3)的前方设有用以配合安装镶芯(2)的安装槽(5)，辙叉本体(1)与镶芯(2)可拆卸连接。镶芯(2)包括上连接段(2-3)和下连接段(2-2)，上连接段(2-3)的尖端与下连接段(2-2)上端面之间设有圆弧过渡(2-1)，上连接段(2-3)的后端面与叉心段(3)的前端面配合连接，镶芯(2)的上端面与叉心段(3)的上端面处于同一平面。高锰钢辙叉本体(1)与镶芯(2)可拆卸连接，能够便捷的更换易损部位，节约成本的同时满足使用要求，镶芯(2)可以采用与辙叉本体(1)不同的材料和生产工艺，提高镶芯(2)的使用性能。

Description

一种镶心式高锰钢辙叉结构 技术领域
本发明涉及铁路道岔技术领域，具体是一种镶心式高锰钢辙叉结构。
背景技术
辙叉是铁路道岔系统的关键部件，高锰钢辙叉以其独有的特性在全球范围内广泛应用。随着我国铁路运营里程不断增加，高锰钢辙叉的需求量不断提高，与此同时，铁路运载量和速度的提升也加速了高锰钢辙叉的磨耗，降低了辙叉的使用寿命。研究发现，高锰钢辙叉并非整体损坏，而是存在一个局部的有害空间，在有害空间范围内，容易出现高锰钢辙叉表层剥落掉块，影响正常使用，而高锰钢辙叉本身不易修复，所以只能直接报废，这样造成极大的浪费。
发明内容
本发明的目的，就是为解决现有技术存在的问题，而设计了一种镶心式高锰钢辙叉结构，通过便捷地更换易损部位，既节约成本又能够满足使用。
本发明的技术方案为：本发明提供了一种镶心式高锰钢辙叉结构，其特征在于：包括高锰钢辙叉本体和镶芯，所述高锰钢辙叉本体整铸成型，包括翼轨连接段、叉心段和叉跟轨连接段，所述翼轨连接段和叉跟轨连接段分别设置在所述叉心段的前后两端，所述叉心段的前方设置有用以配合安装镶芯的安装槽，所述高锰钢辙叉本体与镶芯可拆卸连接。
上述镶芯包括俯视面为三角形的上连接段、与安装槽配合连接的下连接段，所述上连接段的尖端与下连接段的上端面之间设置有圆弧过渡，所述上连接段的后端面与叉心段的前端面配合连接，所述镶芯的上端面与叉心段的上端面处于同一平面。
上述下连接段的左右两侧的侧面由上至下、由外向内倾斜设置，所述侧面与竖直方向的夹角为2°～4°。通过该设计，下连接段与安装槽之间安装方便，并能紧密配合，形成接触斜面，增强稳定性。
上述镶芯的后端面由上之下、由内向外倾斜设置，所述镶芯的后端面与竖直方向之间的夹角为2°～4°。通过该设计，上连接段与叉心段的前端面紧密配合，保证镶芯与叉心段之间过渡的平滑性和稳定性。下连接段与安装槽紧密配合，形成接触斜面，有效防止在车辆通过时镶芯发生上下窜动。
上述安装槽上沿其长度方向间隔设置有螺栓孔I，所述镶芯的下端面上设置有与螺栓孔I相对应的螺栓安装孔I，所述镶芯与辙叉本体通过螺栓固定连接，拆装方便，在出现磨损 时便于维护和更换，节约成本。
上述螺栓与高锰钢辙叉本体之间设置有防转垫片和弹簧垫圈，以防止螺栓转动，保证镶芯与高锰钢辙叉本体连接的稳定性。
上述上连接段的左右两侧侧面与上连接段的上端面之间、所述上连接段的左右两侧侧面与下连接段的上端面之间分别设置有圆弧过渡。
上述上连接段上端面尾端的宽度设置为60mm～110mm，以此作为基准便于进行安装槽及镶芯的设计。
上述安装槽的左右两侧分别设置有轮缘槽，所述下连接段与安装槽配合安装后，下连接段的上端面的左右两侧轮廓线分别与轮缘槽底部中心线重合设置。
本发明的有益效果可通过上述方案得出：1、由于辙叉在使用过程中并非整体损坏，而是在有害空间范围内局部损坏，本发明中，通过高锰钢辙叉本体与镶芯可拆卸连接，能够便捷的更换易损部位，节约成本的同时满足使用要求；2、由于镶芯部位为易损部位，镶芯可以采用与高锰钢整铸辙叉本体不同的材料和生产工艺，便于进一步提高可换芯的使用性能，降低磨损量和磨损速度；3、本发明中，镶芯的后端面由上之下、由内向外倾斜设置，形成接触斜面II，能够保证镶芯与安装槽之间紧密配合，防止车辆通过时镶芯发生上下窜动；镶芯的下连接段的左右两侧的侧面由上至下、由外向内倾斜设置，形成接触斜面I，便于镶芯的更换，本发明设计合理，使用安全可靠。
由此可见，本发明与现有技术相比具有突出的实质性特点和显著的进步，其实施的有益效果也是显而易见的。
附图说明
图1为本发明的结构示意图；
图2为本发明中镶芯的俯视示意图；
图3为本发明中镶芯的主视示意图；
图4为本发明中镶芯的半剖示意图；
图5为本发明中辙叉本体的俯视示意图；
图6为本发明中辙叉本体的主视示意图；
图7为图1中D向剖视示意图；
图8为图7中的B处放大示意图；
图9为图1中E向剖视示意图；
图10为图1中F向剖视示意图；
其中，1为高锰钢辙叉本体，2为镶芯，2-1为圆弧过渡，2-2为下连接段，2-3为上连接段，2-4为接触斜面II，2-5为螺栓安装孔I，2-6为接触斜面I，2-7为夹角β，2-8为夹角α，3为叉心段，4为螺栓安装孔，5为安装槽，6为螺栓孔I，7为螺栓，8为弹簧垫圈，9为防转垫片，10为叉跟轨连接段，11为轮缘槽。
具体实施方式
为了更好地理解本发明，下面结合附图来详细解释本发明的实施方式。
具体实施方式：本发明提供了一种镶心式高锰钢辙叉结构，包括高锰钢辙叉本体1和镶芯2，高锰钢辙叉本体1整铸成型，包括翼轨连接段、叉心段3和叉跟轨连接段10，翼轨连接段和叉跟轨连接段10分别设置在叉心段3的前后两端，叉心段3的前方设置有用以配合安装镶芯2的安装槽5，高锰钢辙叉本体1与镶芯2可拆卸连接。
其中，镶芯2包括俯视面为三角形的上连接段2-3、与安装槽5配合连接的下连接段2-2，上连接段2-3的尖端与下连接段2-2的上端面之间设置有圆弧过渡2-1，上连接段2-3的后端面与叉心段3的前端面配合连接，镶芯2的上端面与叉心段3的上端面处于同一平面。下连接段2-2的左右两侧的侧面由上至下、由外向内倾斜设置，形成接触斜面I2-6，接触斜面I2-6与竖直方向的夹角β2-7为2°～4°。通过该设计，下连接段2-2与安装槽5之间安装方便，在镶芯2损坏时便于更换。镶芯2的后端面包括上连接段2-3的后端面与下连接段2-2的后端面，在本实施例中，上连接段2-3的后端面与下连接段2-2的后端面重合设置，上述镶芯2的后端面由上之下、由内向外倾斜设置，形成接触斜面II2-4，接触斜面II2-4与竖直方向之间的夹角α2-8为2°～4°。在本实施例中，夹角α2-8设置为3°，夹角β2-7设置为3°。通过该设计，上连接段与叉心段的前端面紧密配合，保证镶芯与叉心段之间过渡的平滑性和稳定性。下连接段与安装槽之间紧密配合，有效防止在车辆通过时镶芯发生上下窜动。
上连接段2-3上端面尾端的宽度设置为60mm～110mm。上连接段2-3的左右两侧侧面与上连接段2-3的上端面之间、上连接段2-3的左右两侧侧面与下连接段2-2的上端面之间分别设置有圆弧过渡。在本实施例中，上连接段2-3上端面尾端的宽度设置为80mm。
如图7所示，安装槽5的左右两侧分别设置有轮缘槽11，下连接段2-2与安装槽5配合安装后，下连接段2-2的上端面的左右两侧轮廓线分别与轮缘槽5底部中心线重合设置。在实际加工过程中，由于加工误差的存在，下连接段2-2的长度尺寸可进行相应的调整，以保证其尺寸便于加工，减小误差。
上述安装槽5上沿其长度方向间隔设置有螺栓孔I6，镶芯2的下端面上设置有与螺栓 孔I6相对应的螺栓安装孔I2-5，镶芯2与辙叉本体通过螺栓固定连接。螺栓与高锰钢辙叉本体之间设置有防转垫片9和弹簧垫圈8。辙叉本体的两侧壁上设置有用以与铁轨连接的螺栓安装孔4，所述螺栓安装孔4位于安装槽5底面的下方。
由于辙叉在使用过程中并非整体损坏，而是在有害空间范围内局部损坏，本发明中，通过高锰钢辙叉本体1与镶芯2可拆卸连接，能够便捷的更换易损部位，节约成本的同时满足使用要求；另外，考虑到镶芯2部位为易损部位，镶芯2可以采用与高锰钢整铸辙叉本体不同的材料和生产工艺，便于进一步提高镶芯2的使用性能，降低磨损量和磨损速度。本发明设计合理，使用安全可靠，值得推广。
上述说明并非是对本发明的限制，本发明也并不仅限于上述举例，本技术领域的普通技术人员在本发明的实质范围内所做出的变化、改型、添加或替换，也应属于本发明的保护范围。

Claims (9)

  1. 一种镶心式高锰钢辙叉结构，其特征在于：包括高锰钢辙叉本体和镶芯，所述高锰钢辙叉本体整铸成型，包括翼轨连接段、叉心段和叉跟轨连接段，所述翼轨连接段和叉跟轨连接段分别设置在所述叉心段的前后两端，所述叉心段的前方设置有用以配合安装镶芯的安装槽，所述高锰钢辙叉本体与镶芯可拆卸连接。
  2. 如权利要求1所述的镶心式高锰钢辙叉结构，其特征在于：所述镶芯包括俯视面为三角形的上连接段、与安装槽配合连接的下连接段，所述上连接段的尖端与下连接段的上端面之间设置有圆弧过渡，所述上连接段的后端面与叉心段的前端面配合连接，所述镶芯的上端面与叉心段的上端面处于同一平面。
  3. 如权利要求2所述的镶心式高锰钢辙叉结构，其特征在于：所述下连接段的左右两侧的侧面由上至下、由外向内倾斜设置，所述侧面与竖直方向的夹角为2°～4°。
  4. 如权利要求2或3所述的镶心式高锰钢辙叉结构，其特征在于：所述镶芯的后端面由上至下、由内向外倾斜设置，所述镶芯的后端面与竖直方向之间的夹角为2°～4°。
  5. 如权利要求1或2或3所述的镶心式高锰钢辙叉结构，其特征在于：所述安装槽上沿其长度方向间隔设置有螺栓孔I，所述镶芯的下端面上设置有与螺栓孔I相对应的螺栓安装孔I，所述镶芯与辙叉本体通过螺栓固定连接。
  6. 如权利要求5所述的镶心式高锰钢辙叉结构，其特征在于：所述螺栓与高锰钢辙叉本体之间设置有防转垫片和弹簧垫圈。
  7. 如权利要求2所述的镶心式高锰钢辙叉结构，其特征在于：所述上连接段的左右两侧侧面与上连接段的上端面之间、所述上连接段的左右两侧侧面与下连接段的上端面之间分别设置有圆弧过渡。
  8. 如权利要求2所述的镶心式高锰钢辙叉结构，其特征在于：所述上连接段上端面尾端的宽度设置为60mm～110mm。
  9. 如权利要求2或8所述的镶心式高锰钢辙叉结构，其特征在于：所述安装槽的左右两侧分别设置有轮缘槽，所述下连接段与安装槽配合安装后，下连接段的上端面的左右两侧轮廓线分别与轮缘槽底部中心线重合设置。
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