Track chain running gear for mining machines, and chain link for a track chain running gear and method for producing said chain link

摘要

In a track chain running gear (2) for mining machines (1), in particular heading machines, including at least one running gear case (5) and a track chain running around the running gear case (5) and formed by a multiplicity of chain links (3) articulately connected to one another, the running gear case (5), on its side facing the roadway, carries sliding plates (6) that form contact surfaces for the chain links (3) running along them, wherein the chain links (3), on their sides facing the sliding plates (6), carry wear plates (7) whose projecting surfaces cooperate with the contact surfaces of the sliding plates (6). In a chain link (3) for a track chain running gear (2), the chain link (3), on its side facing the sliding plates (6) of the running gear case (5), carries wear plates (7) whose projecting surfaces cooperate with the contact surfaces of the sliding plates (6). In a method for producing chain links (3) of a track chain running gear (2) wear plates (7) are inserted into a casting die for the chain link (3), and the chain link (3) is subsequently produced by casting, wherein the wear plates (7) inserted in the casting die are cast around such that the wear plates (7) project beyond the surface of the chain link (3) after the casting procedure. (FIG. 5)