The invention relates to a driver for scraper chain conveyors, particularly for use in underground working, comprised of an upper part (15) and of a lower part (16), which can be screwed thereto by screw connections. Both of these parts each support a portion of one or more chain bed(s) (11, 12), which are passed through by a flat parting plane, and support a portion of the recesses, which are provided for receiving screws (19) of the screw connections and which are located outside of the chain bed. The upper part and lower part at least partially surround one another, and the upper part is provided in the form of a clamp-like bridge element, which overlaps the lower part on top at both ends. Both ends (22) of the bridge-like upper part have the shape of a wedge head with upper and lower guide surfaces (24, 25) that intersect while forming a wedge, and an engagement between the upper part and the lower part ensues at both ends by means of lug-like centering projections (17), which are provided on the upper part or lower part and which engage inside corresponding recesses of the contact surfaces of the lower part or upper part. Supporting surfaces (42) are provided between the upper part and lower part and serve to effect a release (33) between the upper part and the lower part.