摘 要

軌道電路以一段鐵路線路的鋼軌為導(dǎo)體構(gòu)成的電路，用于自動(dòng)、連續(xù)檢測(cè)這段線路是否被機(jī)車車輛占用，也用于控制信號(hào)裝置或轉(zhuǎn)轍裝置，以保證行車安全的設(shè)備。 整個(gè)軌道系統(tǒng)路網(wǎng)依適當(dāng)距離區(qū)分成許多閉塞區(qū)間，各閉塞區(qū)間以軌道絕緣接頭區(qū)隔，形成一獨(dú)立軌道電路，各區(qū)間的起始點(diǎn)皆設(shè)有號(hào)志機(jī)(色燈式號(hào)志)，當(dāng)列車進(jìn)入閉塞區(qū)間后，軌道電路立即反應(yīng)，并傳達(dá)本區(qū)間已有列車通行，禁止其他列車進(jìn)入的訊息至號(hào)志機(jī)，此時(shí)位于區(qū)間入口的號(hào)志機(jī)，立即顯示險(xiǎn)阻禁行的信息。
本論文主要闡述了軌道電路的硬件結(jié)構(gòu)組成，軌道電路的作用，軌道電路的分類，軌道電路在鐵路中的應(yīng)用，工頻交流連續(xù)式的軌道電路，道岔區(qū)段的軌道電路，軌道電路的極性交叉，鋼軌絕緣節(jié)的設(shè)置，25HZ軌道電路，97型相敏軌道電路，移頻軌道電路，軌道電路的基本工作狀態(tài)和基本參數(shù)，軌道電路的維護(hù)和探討。
通過本次設(shè)計(jì)，初步掌握了軌道電路的應(yīng)用原理、故障處理步驟、方法、內(nèi)容，技術(shù)改良的方向。

關(guān)鍵詞 軌道電路；25HZ；道岔區(qū)段；維修改良















Track circuit a railway line to the rail of the circuit for a conductor, is used in the automaticand continuous detection this period of line is occupied by locomotive vehicles, but also tocontrol signal devices or to correct device, to ensure the safety of the equipment. The railsystem in accordance with the appropriate distance network divided into many block interval, each block interval to track the insulation joint segregation, form a separate track circuit, each interval is the starting point of a] light machine (color lamp type] light), when the trains into block after the interval, track circuit react instantly, and pass this interval for train routes, and by other trains into message to] light machine, located in the entrance of the interval at] light machine, show immediate dangers of drink-drivinginformation.

This thesis mainly describes the composition of the hardware of track circuit, the role of track circuit, the classification of track circuit, the application in railway track circuit, industrial frequency exchange successive track circuit, turnout section of track circuit, the polarity of the track circuit and cross section of the insulation rail set, 25 HZ track circuit, type 97 phase sensitive track circuit, frequency shift track circuit, the basic work of track circuit state and basic parameters, the maintenance of track circuit and the discussion.

Through this design, preliminary master track circuit application principle, fault handling procedures, methods, contents, the direction of improving technology.
Key words track circuit; 25 HZ; Turnout section, Maintenance improved



























Abstract

目 錄
第1章 緒 論 1
第2章 計(jì)算機(jī)聯(lián)鎖系統(tǒng)結(jié)構(gòu) 2
2.1 系統(tǒng)的硬件構(gòu)成 2
2.1.1 聯(lián)鎖機(jī) 4
2.1.2 電子終端 4
2.1.3 控制臺(tái) 5
2.1.4 電務(wù)維護(hù)臺(tái) 5
第3章 計(jì)算機(jī)聯(lián)鎖工作原理 6
3.1 系統(tǒng)結(jié)構(gòu)與工作原理 6
3.1.1 人機(jī)對(duì)話層 6
3.1.2 聯(lián)鎖運(yùn)算層 6
3.1.3 復(fù)核驅(qū)動(dòng)層 6
3.1.4 結(jié)合電路層 6
3.1.5 監(jiān)控對(duì)象層 7
3.2 可靠性及安全設(shè)計(jì) 7
第4章 故障維護(hù)及探討 8
4.1 聯(lián)鎖設(shè)備常見故障分析處理 8
4.1.1 非潛伏性故障 8
4.1.2 潛伏性故障 8
4.2 計(jì)算機(jī)單元故障 9
4.2.1 聯(lián)鎖機(jī) 9
4.2.2監(jiān)控機(jī) 9
4. 3 通訊線路故障 9
4. 4 切換故障 10
4. 5 電源故障 10
結(jié)論 11
致謝 12
參考文獻(xiàn) 13