Apparatus for lubricating a moving chain.

摘要

An automatic lubricator (10) for chain conveyors (12) with a pivoting arm (24) having a roller (40) contacting the chain and moving between the chain side links (22) to place lubricating nozzles (at 34) along the chain centre line. A magnetic proximity sensor (68) on the pivoting arm (24) activates the fluid pump (54) when the nozzles are in position to deliver lubricating fluid to the chain pins. Metering pump apparatus (54) diverts fluid from the metering pump to a fluid return line (104) immediately at the end of a lubrication cycle. The metering pump chamber is then primed for the next cycle. Drippage from the lubrication nozzles (at 34) is eliminated.