WO2019227514A1 - 一种适用于轴重35～40吨重载铁路的有螺栓扣件组件 - Google Patents

一种适用于轴重35～40吨重载铁路的有螺栓扣件组件 Download PDF

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Publication number
WO2019227514A1
WO2019227514A1 PCT/CN2018/089998 CN2018089998W WO2019227514A1 WO 2019227514 A1 WO2019227514 A1 WO 2019227514A1 CN 2018089998 W CN2018089998 W CN 2018089998W WO 2019227514 A1 WO2019227514 A1 WO 2019227514A1
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WIPO (PCT)
Prior art keywords
fastener assembly
assembly suitable
heavy
railway
tons
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Application number
PCT/CN2018/089998
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English (en)
French (fr)
Inventor
肖俊恒
方杭玮
李子睿
李彦山
李承亮
于豪勇
Original Assignee
中国铁道科学研究院铁道建筑研究所
中国铁道科学研究院集团有限公司
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Application filed by 中国铁道科学研究院铁道建筑研究所, 中国铁道科学研究院集团有限公司 filed Critical 中国铁道科学研究院铁道建筑研究所
Priority to BR112020024193-8A priority Critical patent/BR112020024193B1/pt
Publication of WO2019227514A1 publication Critical patent/WO2019227514A1/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
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
    • E01B9/44—Fastening the rail on the tie-plate
    • E01B9/46—Fastening the rail on the tie-plate by clamps
    • E01B9/48—Fastening the rail on the tie-plate by clamps by resilient steel clips

Definitions

  • the invention relates to a spring bar fastener system for rails, and in particular to a bolted fastener assembly suitable for a heavy-duty railway with a shaft weight of 35 to 40 tons.
  • Heavy-duty railway transportation is widely valued by railways in the world due to its large capacity, high efficiency, and low transportation costs. For example, the United States, Canada, Brazil, Australia, South Africa and other heavy-duty railways run a large number of heavy-duty trains. The main passenger-cargo mixed arterial route also began to operate heavy-duty trains. As one of the important components of the track structure, the fastener plays an important role in maintaining the track gauge and enhancing the stability of the track structure.
  • Bolted fasteners are widely welcomed because they have the ability to adjust the height of the rails, and the buckle pressure can be restored by tightening after the spring buckle pressure decays, which greatly facilitates the maintenance and repair of railway lines.
  • one of the most widely used fastener structures in China's 30t axle heavy-duty railways is mainly composed of T-bolts, nuts, flat washers, spring bars, insulated gauge blocks, gauge baffles, rail underplates and embedded iron seats.
  • the technical problem solved by the present invention is to provide a bolted fastener assembly suitable for a heavy-duty railway with a shaft weight of 35 to 40 tons.
  • a bolted fastener assembly suitable for a heavy-duty railway with a shaft weight of 35 to 40 tons which is characterized by: T-bolts, nuts, flat washers, spring bars, insulated gauge blocks, under-rail pads and embedded iron
  • the pre-buried iron seat is provided with a dovetail slot.
  • the pre-buried iron seat is embedded in advance on the concrete foundation.
  • the T-bolt is installed in the dovetail slot of the pre-buried iron seat.
  • the T-bolt fastens the elastic bar and installs it.
  • the elastic strip described above extends into the elastic strip receiving groove of the embedded iron seat, and an insulating gauge block is arranged between the steel rail and the embedded iron seat.
  • the left and right positions of the steel rail are adjusted by replacing the insulating gauge blocks of different thicknesses, and then Under-rail pads are provided under the rails to provide the elasticity of the fastener system.
  • a rib is provided in the dovetail groove on the embedded iron seat.
  • the number of the ribs is three.
  • the three ribs surround a U-shaped structure.
  • the elastic strip receiving groove is a concave groove.
  • the beneficial effects of the present invention are: the improved design based on the existing bolt fasteners to simplify the fastener structure, facilitate installation and maintenance, and reduce the cost.
  • the specific measures are to eliminate the gauge gauge and optimize the dovetail of the embedded iron seat.
  • the structure can realize all the functions of the existing bolt fasteners, and has fewer parts, a simple structure, and convenient maintenance and repair operations.
  • FIG. 1 is a schematic structural diagram of a conventional bolt fastener.
  • FIG. 2 is a schematic structural diagram of a bolted fastener according to the present invention.
  • FIG. 3 is a schematic structural diagram of an embedded iron seat according to the present invention.
  • FIG. 4 is a schematic diagram of an insulated gauge block of the present invention.
  • FIG. 5 is a schematic diagram of a track-down heightening pad of the present invention.
  • a bolted fastener assembly suitable for heavy-duty railways with a shaft load of 35 to 40 tons consisting of T-bolts 3, nuts 5, flat washers 6, spring bars 4, insulation gauge blocks 7, under rails
  • the backing plate 2 and the embedded iron seat 1 are composed of the embedded iron seat 1 which is pre-buried on the concrete foundation.
  • the dovetail groove is provided on the embedded iron seat.
  • the T-bolt is installed in the dovetail groove of the embedded iron seat.
  • the spring bar 4 is fastened and installed. The spring bar 4 extends into the spring bar receiving groove 9 of the embedded iron base 1.
  • An insulating gauge block 7 is provided between the steel rail and the embedded iron base 1.
  • the block 7 adjusts the left and right positions of the steel rail, and then sets a rail underlay 2 under the rail to provide the elasticity of the fastener system.
  • the dovetail groove of the embedded iron seat 1 is provided with ribs 8, the ribs form a U-shaped structure, and the number of the ribs 8 is three.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Connection Of Plates (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

一种适用于轴重35～40吨重载铁路的有螺栓扣件组件，由T型螺栓（3）、螺母（5）、平垫圈（6）、弹条（4）、绝缘轨距块（7）、轨下垫板（2）和预埋铁座（1）组成，在混凝土基础上预先埋设预埋铁座（1），预埋铁座（1）上安装T型螺栓（3）紧固弹条（4），在钢轨和预埋铁座（1）间设置绝缘轨距块（7），同时通过更换不同厚度的绝缘轨距块（3）进行钢轨左右位置的调整，然后在轨下设置轨下垫板（2），提供扣件系统的弹性。该结构可实现现有有螺栓扣件的全部功能，且零部件少，结构简单，养护维修作业方便。

Description

一种适用于轴重35～40吨重载铁路的有螺栓扣件组件 技术领域
本发明涉及铁轨用弹条扣件系统，尤其涉及一种适用于轴重35～40吨重载铁路的有螺栓扣件组件。
背景技术
重载铁路运输因其运能大、效率高、运输成本低而受到世界各国铁路的广泛重视，如美国、加拿大、巴西、澳大利亚、南非等重载铁路上大量开行重载列车，在欧洲以客运为主的客货混运干线上也开始开行重载列车。扣件作为轨道结构的重要组成部分之一，对保持轨距、增强轨道结构稳定性具有重要作用。
有螺栓扣件因其具有钢轨高低位置调整能力，且弹条扣压力衰减后可通过复紧恢复扣压力，大大方便铁道线路的养护维修作业，而受到广泛欢迎。
目前国内30t轴重重载铁路采用最多的一种扣件结构主要由T型螺栓、螺母、平垫圈、弹条、绝缘轨距块、轨距挡板、轨下垫板和预埋铁座组成。
现有的该种有螺栓扣件在自身不足主要表现为扣件零部件较多，生产制造成本高，安装拆卸复杂。
发明内容
本发明所解决的技术问题在于提供一种适用于轴重35～40吨重载铁路的有螺栓扣件组件。以解决上述背景技术中的缺点。
本发明所解决的技术问题采用以下技术方案来实现：
一种适用于轴重35～40吨重载铁路的有螺栓扣件组件，其特征在于：由T型螺栓、螺母、平垫圈、弹条、绝缘轨距块、轨下垫板和预埋铁座组成，所述的预埋铁座上开设有燕尾槽，在混凝土基础上预先埋设预埋铁座，预埋铁座燕尾槽内安装T型螺栓，T型螺栓将弹条紧固安装，所述的弹条伸入预埋铁座的弹条接受槽中，在钢轨和预埋铁座间设置绝缘轨距块，同时通过更换不同厚度的绝缘轨距块进行钢轨左右位置的调整，然后在轨下设置轨下垫板，提供扣件系统的弹性。
进一步地，所述的预埋铁座上的所述的燕尾槽中设置有档肋。
进一步地，所述的档肋的数量为三个。
进一步地，所述的三个档肋围成了U型结构。
进一步地，所述的弹条接受槽为凹形槽。
本发明的有益效果在于：在现有有螺栓扣件基础上进行的改进设计，以简化扣件结构、方便安装维修、降低造价，具体措施为取消轨距挡板，优化预埋铁座的燕尾槽设计。该结构可实现现有有螺栓扣件的全部功能，且零部件少，结构简单，养护维修作业方便。
附图说明
图1为现有有螺栓扣件的结构示意图。
图2为本发明的有螺栓扣件的结构示意图。
图3为本发明的预埋铁座结构示意图。
图4为本发明的绝缘轨距块示意图。
图5为本发明的轨下调高垫板示意图。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体图示，进一步阐述本发明。
如图所示：一种适用于轴重35～40吨重载铁路的有螺栓扣件组件，由T型螺栓3、螺母5、平垫圈6、弹条4、绝缘轨距块7、轨下垫板2和预埋铁座1组成，在混凝土基础上预先埋设预埋铁座1，预埋铁座上开设有燕尾槽，预埋铁座燕尾槽内安装T型螺栓，T型螺栓3将弹条4紧固安装，弹条4伸入预埋铁座1的弹条接受槽9中，在钢轨和预埋铁座1间设置绝缘轨距块7，同时通过更换不同厚度的绝缘轨距块7进行钢轨左右位置的调整，然后在轨下设置轨下垫板2，提供扣件系统的弹性。预埋铁座1的燕尾槽中设置有档肋8，档肋形成U型结构，档肋8的数量为三个。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (5)

  1. 一种适用于轴重35～40吨重载铁路的有螺栓扣件组件，其特征在于：由T型螺栓、螺母、平垫圈、弹条、绝缘轨距块、轨下垫板和预埋铁座组成，所述的预埋铁座上开设有燕尾槽，在混凝土基础上预先埋设预埋铁座，预埋铁座燕尾槽内安装T型螺栓，T型螺栓将弹条紧固安装，所述的弹条伸入预埋铁座的弹条接受槽中，在钢轨和预埋铁座间设置绝缘轨距块，同时通过更换不同厚度的绝缘轨距块进行钢轨左右位置的调整，然后在轨下设置轨下垫板，提供扣件系统的弹性。
  2. 根据权利要求1所述的一种适用于轴重35～40吨重载铁路的有螺栓扣件组件，其特征在于，所述的预埋铁座上的所述的燕尾槽中设置有档肋。
  3. 根据权利要求2所述的一种适用于轴重35～40吨重载铁路的有螺栓扣件组件，其特征在于：所述的档肋的数量为三个。
  4. 根据权利要求3所述的一种适用于轴重35～40吨重载铁路的有螺栓扣件组件，其特征在于：所述的三个档肋围成了U型结构。
  5. 根据权利要求3所述的一种适用于轴重35～40吨重载铁路的有螺栓扣件组件，其特征在于：所述的弹条接受槽为凹形槽。
PCT/CN2018/089998 2018-05-31 2018-06-05 一种适用于轴重35～40吨重载铁路的有螺栓扣件组件 WO2019227514A1 (zh)

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BR112020024193-8A BR112020024193B1 (pt) 2018-05-31 2018-06-05 Conjunto de fixador aparafusado adequado para ferrovia de transporte pesado com carga por eixo de 35 a 40 toneladas

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CN111172826A (zh) * 2020-03-20 2020-05-19 中铁宝桥（南京）有限公司 一种便携液压式ⅲ型弹条安装工具

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CN111139693B (zh) * 2020-01-16 2024-05-10 石家庄铁道大学 一种重载铁路轨道振动防松扣件组件及其安装方法

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CN111172826A (zh) * 2020-03-20 2020-05-19 中铁宝桥（南京）有限公司 一种便携液压式ⅲ型弹条安装工具

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