自动过分相地面磁感应装置(磁轨枕)的研制

Study and Production of Ground Magnetic Induction Devices with Auto-passing Neutral Section (Magnetic Sleepers)

为了提高轨枕的承载性能,延长轨枕的使用寿命,特选用混凝土轨枕作为磁感应装置(磁轨枕)的基座。将原Ⅲ型混凝土轨枕进行创新改良,在安装磁体位置增加了异形刚性支撑件,并且将其与轨枕内部钢筋焊接在一起,磁感应器采用n×n×n形式矩阵磁组。并确定了刚性支撑件的制作与安装、混凝土搅拌、钢丝张拉、振动成型和蒸汽养护工序的重要控制指标。检验结果表明,磁轨枕的外观质量、外形尺寸、静载强度、混凝土的脱模强度等均符合标准要求。

In order to enhance the loading properties of sleepers and prolonging their service lives, concrete sleepers are selected as the substrate of magnetic induction devices （magnetic sleepers）. The original III type concrete sleepers are improved and a kind of special shaped rigid bracing is welded together with the sleepers at the installation position of magnets. A matrix magnetic combination with the form of n×n×n is applied on the magnetic inductor. Furthermore, the key controlling indexes of the manufacture and installation of rigid supports, concrete mixing, steel wire tension, vibration moulding and steam curing are determined. The test results indicate that some important indexes of magnetic sleepers such as appearance quality, boundary dimension, static load strength, demoulding strength of concrete and so on can meet the standard requirements.