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Automatic advance mechanism for drag chain grinder - uses hydraulic cylinder to advance chain and has proximity detector to detect magnet marking salient part of chain
Automatic advance mechanism for drag chain grinder - uses hydraulic cylinder to advance chain and has proximity detector to detect magnet marking salient part of chain
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机译：拖链磨床的自动前进机构-使用液压缸使链前进，并具有接近检测器来检测链条的磁铁标记凸出部分
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摘要
The advance is fitted to a semi-automatic drag chain grinder having a work plate carrying a hydraulic piston to clamp the chain and an arm, carrying the grinder, which can be raised or lowered to allow passage of the chain. A double rod hydraulic cylinder (1) is mounted on the clamping assembly and is used to advance the chain, one rod being used to operate a pawl (10) with a pivoted arm (11). The other rod has forward and backward travel stops (4,5). The clamp has a magnetic type proximity detector (12) which emits a signal used to stop the chain advance hydraulic cylinder when a magnet on the chain is encountered. The magnet may indicate the end of the chain or a local defect.
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