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(一)前言北京型内燃机车的12240Z柴油机曲轴的扭振减振器为簧片硅油式(见图1),具有良好的减振特性,但在实际运用中曾发生过硅油泄漏、变质、簧片折断等故障,致使发动机和机车振动加剧。为探明该型减振器可能发生的故障及其对扭振减振特性的影响,分别对新制作的减振器和经长期运用后厂修机车的减振器做了性能对比校核试验、改充不同粘度的硅油和一般机油的对比试验和拆除簧片与保留簧片的
(A) of the preface Beijing-type diesel locomotive 12240Z diesel engine crankshaft torsional vibration damper reed silicon oil type (see Figure 1), has good damping characteristics, but in actual use there have been silicone oil leakage, deterioration, spring Broken pieces of failure, resulting in increased vibration of the engine and locomotives. In order to find out the possible failure of this type of shock absorber and its influence on the torsional vibration damping characteristics, the performance comparison check test of the newly made shock absorber and the shock absorber of long-term after-use locomotive , Refill different viscosity of the silicone oil and the general comparative test of oil and remove the reed and reed