Rotary or cone crusher and cover for rotary or cone crusher

A cover (1, 1b) for a gyratory or cone crusher comprises a frame provided with a bowl (2) as a first crushing shell; the crushing head is provided with a cover-shaped piece serving as a second crushing shell, and a crushing gap is defined between the cover-shaped piece and the bowl-shaped piece. The cover comprises a central axis (Z), a first end (3) and a second end (4) along the central axis, and a peripheral surface defined by a generatrix rotating about the central axis, the peripheral surface constituting a crushing surface (5) of the cover, and the outer diameter of the cover at the second end (4) is greater than the outer diameter at the first end (3). One or more grooves (10) are formed in the crushing surface (5) at the second end (4) of the shroud (1, 1b) and one or more cavities (20) for receiving wear-resistant inserts (40) are formed in the crushing surface (5) and/or one or more wear-resistant inserts (40) are incorporated into or into the crushing surface (5). 用于回转或圆锥破碎机的罩形件(1、1b)包括框架，设有作为第一破碎壳