Prop head bearing device for shield supports

摘要

A prop head bearing device used for a shield support and to receive a prop head includes a prop head bearing main body with a prop head receiving portion, a flange adjacent to the prop head receiving portion and a flange bore, and a receiving portion adjacent to the flange and remote from the prop head receiving portion. The prop head bearing device may also include a securing element including a securing element bore adapted in shape to the receiving portion, such that in the mounted state the securing element is locked with respect to the bore direction of the flange bore and that the securing element bore is aligned to the flange bore.

主权项

1. A prop head bearing device configured to be attached to a shield canopy of a shield support in underground mining applications and to receive a prop head of a hydraulic prop, comprising:
a prop head bearing main body including:
a prop head receiving portion;a first flange disposed adjacent to the prop head receiving portion and including a first flange bore for supporting a first securing pin configured to engage the prop head in the mounted state; anda first receiving portion disposed adjacent to the first flange and remote from the prop head receiving portion, the first receiving portion including a groove; and a first securing element disposed in the groove, the first securing element including a first securing element bore and being adapted in shape to the first receiving portion, such that in the mounted state the first securing element is locked with respect to the bore direction of the first flange bore and that the first securing element bore is aligned to the first flange bore.