Device for grinding a bearing journal of the crankshaft of a combustion engine, in particular a diesel engine

摘要

Device for grinding a bearing journal (18) of the crankshaft of a combustion engine, comprising a support (1, 3) having mounted thereon two spaced apart parallel extending upright elements (4) which are provided at their top ends with a circular arc-shaped, concave guide edge (6) so that the imaginary straight line through their centre points forms the axis of an imaginary cylindrical surface, the device also having at least one grinding element (11), the grinding surface of which touches said imaginary cylindrical surface at least along a line, so that when the device is in operation - in which case the crankshaft is rotated and the journal to be treated rotates about its axis, which here essentially coincides with the said imaginary axis - the journal part to be ground is led in an essentially perfect circular path past the grinding surface, while this surface is held in a particular fixed position relative to the said axis.