鐵道系統電動轉轍器離合器之測試分析

Test and Analysis of the Clutch of Electrical Switch Machine in Railway System

蔣政諺(Cheng-Yen Chaing)

指導教授 ： 蕭耀榮

國立臺北科技大學/機電學院/車輛工程系所/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00246

摘要

本研究報告探討S700K轉轍器發生的問題，進而針對發生問題的零組件摩擦離合器進行測試、分析與壽命評估。本研究針對S700K轉轍器內兩種型號之摩擦離合器，新舊品各一組，進行摩擦離合器特性之動態測試，再依照動態測試結果進行數據整理、分析以及探討，以瞭解摩擦離合器不同型號、新舊品和不同安裝彈簧數量的差異，並建立各組摩擦離合器之特性曲線。
由動態測試結果得知，摩擦離合器不同型號的最大傳遞扭力並無差異、離合器彈簧長期壓縮會降低其彈性係數、離合器彈簧數量增加會使傳遞扭力提升、摩擦離合器傳遞扭力因摩擦片磨損程度與品質有不同傳遞扭力之變異量。由摩擦離合器的特性曲線中可以觀察出摩擦片對傳遞扭力之影響因素比離合器彈簧大。
依研究中摩擦離合器特性之動態測試結果，利用Archard磨耗公式進行新摩擦片磨耗厚度的計算，並且定義容許磨耗厚度，並以S700K轉轍器尖軌定位訊號異常時之次數重新評估摩擦離合器的使用壽命，以建立摩擦離合器使用壽命之正確評估方法。

關鍵字

轉轍器 ； 摩擦離合器 ； 軌道系統

並列摘要

The study investigates the occurrence of problems on S700K electrical switch machine and then targets at those key components of friction clutch to perform test, analysis and life-cycle evaluation.
Dynamic test is carried out in the study on characteristics of friction clutch. Two models of clutch from S700K electrical switch machine are chosen for testing and each sample group contains a new clutch and an old clutch. The results of the dynamic tests are analyzed to realize the differences among diverse models of friction clutch, new or old parts and different numbers of installed springs. Thus, the characteristic curve of friction clutch for each sample group can be established.
It is found from the result of dynamic test that there is no difference of the maximum driving force among diverse models of clutch; coefficient of elasticity reduces due to long term compression on clutch spring; the increasing number of clutch spring increases the driving force; driving force of friction clutch can present different variance depending on the wear-off degree and quality of friction plates. It is noted from the characteristic curve that friction plate impacts more significantly on driving force than clutch spring.
The result of dynamic test on characteristics of friction clutch along with Archard wear formula is employed to calculate wear thickness of friction plate and define wear thickness allowance. The frequency of location signal on the electrical switch machine showing errors is used to reevaluate the life-cycle of friction clutch and then to establish the correct method for evaluating the life-cycle of friction clutch.

並列關鍵字

electrical switch machine ； clutch ； railway system

參考文獻

[10] 陳彥甫，改善煞車來令片磨耗所造成的煞車系統振動，碩士論文，國立臺北科技大學車輛工程所，臺北，2013。

[1] R. C. Dante and C. Navire, “A Basic Overview on Brake Disc Wear,” SAE technical paper series, 2002, p. 2184.

[3] A. Soderberg and S. Andersson, “Simulation of wear and contact pressure distribution at the pad-to-rotor interface in a disc brake using general purpose finite element analysis software,” Wear, vol. 267, 2009, pp. 305-313.

[4] J. Zhang, B. Xu and X. Guan, ”A combined simulation procedure for wear assessment of the HXN5 locomotive,” Wear, vol. 314, 2014, pp. 305-313.

[5] I. R. McColl, J. Ding and S. B. Leen, ”Finite element simulation and experimental validation of fretting wear,” Wear, vol. 256, 2004, pp. 1114-1127.