Schmiermittelzufuehrungsvorrichtung zu einer Gliederkette

摘要

A lubricant assembly comprises a main cylinder, a main piston assembly reciprocal within the main cylinder, a secondary cylinder connected to the main piston assembly, and a secondary piston assembly reciprocal within the secondary cylinder and having a conical nozzle portion engageable with a chain link lubricant fitting. The main and secondary piston assemblies define between them a lubricant chamber and the secondary piston assembly is provided with a lubricant passage for communicating the lubricant chamber with the conical nozzle portion. The main and secondary piston assemblies are mounted for movement together as an integral unit during a first stage of operation in response to pressurized fluid applied to a working face portion of the main piston assembly to effect movement of the nozzle portion of the secondary piston assembly into engagement with the chain link fitting which is to be lubricated. The main piston assembly then undergoes further movement relative to the secondary piston assembly to diminish the volume of the lubricant chamber and accordingly force the lubricant contained therein through the lubricant passage and out through the nozzle portion into the chain link lubricant fitting. Spring means are provided for effecting return movement of the main and secondary piston assemblies to their initial positions upon completion of the lubricant operation and after the pressurized fluid is relieved from behind the working face of the main piston assembly. The main cylinder is mounted upon resilient members which function to absorb any lateral impulsive forces applied to the secondary piston assembly in the event the nozzle portion of the secondary piston assembly is not truly axially aligned with the intended lubricant fitting.