WO2023216905A1 - 一种应力放散作业钢轨轨温与内应力监测装置 - Google Patents

一种应力放散作业钢轨轨温与内应力监测装置 Download PDF

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Publication number
WO2023216905A1
WO2023216905A1 PCT/CN2023/091233 CN2023091233W WO2023216905A1 WO 2023216905 A1 WO2023216905 A1 WO 2023216905A1 CN 2023091233 W CN2023091233 W CN 2023091233W WO 2023216905 A1 WO2023216905 A1 WO 2023216905A1
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WIPO (PCT)
Prior art keywords
rail
temperature
internal stress
strain gauge
control module
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PCT/CN2023/091233
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English (en)
French (fr)
Inventor
李铨
罗万力
吴喃喃
高亦晖
苟青松
何沛欣
陈欣怡
蔡雅倩
Original Assignee
中铁上海工程局集团(苏州)轨道交通科技研究院有限公司
中铁上海工程局集团有限公司
中铁上海工程局集团华海工程有限公司
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Application filed by 中铁上海工程局集团(苏州)轨道交通科技研究院有限公司, 中铁上海工程局集团有限公司, 中铁上海工程局集团华海工程有限公司 filed Critical 中铁上海工程局集团(苏州)轨道交通科技研究院有限公司
Publication of WO2023216905A1 publication Critical patent/WO2023216905A1/zh

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
    • G01K5/50—Measuring temperature based on the expansion or contraction of a material the material being a solid arranged for free expansion or contraction
    • G01K5/52—Measuring temperature based on the expansion or contraction of a material the material being a solid arranged for free expansion or contraction with electrical conversion means for final indication

Definitions

  • This application relates to the technical field of mechanical engineering, specifically a rail temperature and internal stress monitoring device for stress relief operations.
  • the "roller method” or the “rail stretcher and roller release method” are used to judge the operation based on the real-time temperature of the rail, and the rail elongation needs to be calculated based on this data.
  • attached rail thermometers are often used to measure, and the data are recorded and summarized manually.
  • surveyors are required to measure at intervals along the rails. Overall data measurement consumes a lot of time and energy from surveyors.
  • the purpose of this application is to design a portable, unmanned measurement equipment to address the problems of repetitive labor and time-consuming data collection in rail temperature and rail internal stress measurement during urban rail transit seamless line stress relief operations. This enables automatic measurement and real-time summary of rail temperature and rail internal stress data during the rail stress relief operation, improving the automation and unmanned level of the overall operation process.
  • a rail temperature and internal stress monitoring device for stress relief operations, including a rail, a measuring device, a data transmission device and a master control module.
  • the network topology between the data transmission device and the master control module is a bus connection.
  • the measurement The device is connected to the rail and used to measure rail data.
  • the measuring device is composed of a temperature strain gauge, an internal stress strain gauge, a reinforcement device and an adsorption device.
  • the temperature strain gauge is used to convert the real-time temperature of the rail into an electrical signal.
  • the real-time temperature of the rail is obtained through internal chip processing and sent to the main control module through the data transmission module.
  • the internal stress strain gauge is used to convert the real-time internal stress state of the rail into an electrical signal.
  • the real-time internal stress state of the rail is obtained through internal chip processing and sent to the main control module through the data transmission module.
  • the main body of the adsorption device is a magnet fixed in the measuring device, and is used to fix the measuring device on the rail waist.
  • the reinforcing device is an adjustable bolt, which is used to exert pressure on the temperature strain gauge and the internal stress strain gauge to make them fit more closely to the waist part of the rail, and at the same time, the auxiliary adsorption device fixes the measuring device on the rail.
  • the equipment uses sensors to measure rail temperature and internal stress, which effectively reduces the amount of operations during the measurement process and improves measurement efficiency.
  • Data is transmitted between sensors through Bluetooth, replacing the original manual reporting and summary work, improving the timeliness of data transmission.
  • Figure 1 is a front view of a rail temperature and internal stress monitoring device for stress relief operations of the present application
  • Figure 2 is a top view of a rail temperature and internal stress monitoring device for stress relief operations of the present application
  • Figure 3 is a work flow chart of a rail temperature and internal stress monitoring device for stress relief operations of this application;
  • Figure 4 is a network topology diagram of the rail temperature and internal stress monitoring device and general control module for stress relief operations
  • Example 1 An installation method of a rail temperature and internal stress monitoring device for stress relief operations
  • the operator Before installing the equipment, the operator needs to measure and zero-adjust the temperature strain gauge and internal stress strain gauge to ensure that their working performance is correct before proceeding with the installation of the measuring device.
  • the operator placed rail temperature and internal stress monitoring devices for stress relief operations on both sides of the rail at the point to be measured, and a single device was adsorbed on the rail waist through magnets.
  • the strain gauges used to measure data need to be additionally fixed through fastening devices to ensure that the strain gauges can fit tightly against the rails.
  • the operator needs to debug the Bluetooth module of the data transmission device to ensure that it can communicate normally with the master control module. Make sure that the overall equipment is working properly before proceeding to the next installation point for equipment installation.
  • Embodiment 2 A rail temperature and internal stress monitoring device for stress relief operations and its use method
  • the operator can adjust the output of the rail impactor according to the internal stress state of the rail displayed on the master control module. If the internal stress state of the rail meets the locking requirements, it can be judged that the stress relief operation of the long rail bar meets the requirements, and the subsequent rail locking and measurement device disassembly work can be carried out

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

一种应力放散作业钢轨轨温与内应力监测装置，包括钢轨、测量装置、数据传输装置及总控模块，数据传输装置与总控模块之间网络拓扑结构为总线式连接，测量装置连接钢轨，用于测量钢轨数据，测量装置由温度应变片（1-1）、内应力应变片（1-2）、加固装置（1-4）及吸附装置（1-3）组成，设备采用传感器测量钢轨轨温与内应力，有效减少测量过程中操作量，提高测量效率。

Description

一种应力放散作业钢轨轨温与内应力监测装置 技术领域
本申请涉及机械工程技术领域，具体来说是一种应力放散作业钢轨轨温与内应力监测装置。
 背景技术
钢轨实时温度用于判断作业时采用依据钢轨实时温度判断作业采用“滚筒法”或是“钢轨拉伸器、滚筒放散法”，并且需要依据该数据计算钢轨伸长量。对于钢轨实时温度多采用贴附式轨温计测量，人工记录与汇总数据。测量过程中需要测量人员沿钢轨每间隔一段距离测量一次，整体数据测量耗费测量人员大量时间与精力。
对于钢轨内应力状态，多采用临时观测点与光学测量仪器人工观测钢轨位移量。作业过程中临时观测点每50-100米设置一处，单个观测点需要配备一名专业技术人员测量与记录数据。最终数据通过对讲机汇总至撞轨器作业班组处，通过比对临时观测点的位移量是否呈正比增加，判断钢轨应力放散作业是否满足需求。
 技术问题
随着轨道交通施工劳动力缺口日益增大，工作人员对于复杂繁琐的测量方式使用意愿不断下降，亟需设计一种便携式、测量过程无人操作的新型测量工具，提高作业效率与减少测量所需劳动资源。
 技术解决方案
本申请的目的在于：针对城市轨道交通无缝线路应力放散作业中钢轨温度与钢轨内应力测量重复劳动与数据汇总耗时耗力的问题，设计一种便携式、无人操作化的测量设备。从而实现钢轨应力放散作业过程中，钢轨温度与钢轨内应力数据自动化测量与实时汇总，提高整体作业过程的自动化与无人化水平。
设计一种应力放散作业钢轨轨温与内应力监测装置，包括钢轨、测量装置、数据传输装置及总控模块，数据传输装置与总控模块之间网络拓扑结构为总线式连接，所述的测量装置连接钢轨，用于测量钢轨数据，所述的测量装置由温度应变片、内应力应变片、加固装置及吸附装置组成。
优选地，温度应变片用于将钢轨实时温度转化为电信号，通过内部芯片处理得到钢轨实时温度，通过数据传输模块发送至总控模块。
优选地，内应力应变片用于将钢轨实时内应力状态转化为电信号，通过内部芯片处理得到钢轨实时内应力状态，通过数据传输模块发送至总控模块。
优选地，吸附装置主体为固定在测量装置中的磁铁，用于将测量装置固定在钢轨轨腰上。
优选地，加固装置为可调节螺栓，用于对温度应变片和内应力应变片施加压力，使其更加贴合钢轨轨腰部分，同时辅助吸附装置将测量装置固定在钢轨上。
 有益效果
本申请同现有技术相比，其优点在于：
1、设备采用传感器测量钢轨轨温与内应力，有效减少测量过程中操作量，提高测量效率。
2、传感器间通过蓝牙传输数据，取代原先人工汇报汇总工作，提高了数据传输时效性。
3、测量过程中无需操作人员额外操作，减少操作过程中所需人工。
 附图说明
图1是本申请一种应力放散作业钢轨轨温与内应力监测装置正视图；
图2是本申请一种应力放散作业钢轨轨温与内应力监测装置俯视图；
图3是本申请一种应力放散作业钢轨轨温与内应力监测装置工作流程图；
图4是应力放散作业钢轨轨温与内应力监测装置与总控模块网络拓扑图；
图中：1-1.温度应变片，1-2.内应力应变片，1-3.吸附装置，1-4.加固装置。
 本申请的实施方式
实施例1：一种应力放散作业钢轨轨温与内应力监测装置安装方式
设备安装前，操作人员需对温度应变片与内应力应变片进行测量、调零工作，确保其工作性能无误后才能够进行测量装置安装工作。
安装过程中操作人员于待测量点钢轨两侧各放置应力放散作业钢轨轨温与内应力监测装置，单个装置通过磁铁吸附在钢轨轨腰上。同时用于测量数据的应变片则需要通过紧固装置额外固定，确保应变片能够紧密贴合钢轨。
安装设备完成后，操作人员需调试数据传输装置蓝牙模块，确保其能够和总控模块间正常通讯。确保整体设备工作正常后方可前往下一个安装点进行设备安装。
实施例2：一种应力放散作业钢轨轨温与内应力监测装置及使用方法
按照实施例对整体设备完成安装后，若需要对钢轨进行拉伸，通过总控模块获取钢轨各点实时轨温，取平均值计算出整段长轨条的实时轨温，后按照钢轨伸长量=0.0118×（锁定轨温－实时轨温）×应力放散钢轨长度。后续应力放散作业时，操作人员可以依照总控模块处显示的钢轨内应力状态，调节撞轨器端出力。若钢轨内应力状态满足锁定要求，则可以判断该段长轨条应力放散作业符合要求，进行后续钢轨锁定与测量装置拆除工作
以上所述，仅为此申请的具体实施方式，但本申请的保护范围不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，根据本申请的技术方案和新型的构思加于等同替换或改变，都应涵盖在本申请的保护范围之内。

Claims (5)

  1. 一种应力放散作业钢轨轨温与内应力监测装置，包括钢轨，其特征在于包括测量装置、数据传输装置及总控模块，数据传输装置与总控模块之间网络拓扑结构为总线式连接，所述的测量装置连接钢轨，用于测量钢轨数据，所述的测量装置由温度应变片、内应力应变片、加固装置及吸附装置组成。
  2. 如权利要求1所述的一种应力放散作业钢轨轨温与内应力监测装置，其特征在于：所述的温度应变片用于将钢轨实时温度转化为电信号，通过内部芯片处理得到钢轨实时温度，通过数据传输模块发送至总控模块。
  3. 如权利要求1所述的一种应力放散作业钢轨轨温与内应力监测装置，其特征在于：所述的内应力应变片用于将钢轨实时内应力状态转化为电信号，通过内部芯片处理得到钢轨实时内应力状态，通过数据传输模块发送至总控模块。
  4. 如权利要求1所述的一种应力放散作业钢轨轨温与内应力监测装置，其特征在于：所述的吸附装置主体为固定在测量装置中的磁铁，用于将测量装置固定在钢轨轨腰上。
  5. 如权利要求1所述的一种应力放散作业钢轨轨温与内应力监测装置，其特征在于：所述的加固装置为可调节螺栓，用于对温度应变片和内应力应变片施加压力，使其更加贴合钢轨轨腰部分，同时辅助吸附装置将测量装置固定在钢轨上。
PCT/CN2023/091233 2022-05-11 2023-04-27 一种应力放散作业钢轨轨温与内应力监测装置 WO2023216905A1 (zh)

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CN217560830U (zh) * 2022-05-11 2022-10-11 中铁上海工程局集团(苏州)轨道交通科技研究院有限公司 一种应力放散作业钢轨轨温与内应力监测装置

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