Prop head bearing device for shield supports
AssigneeCaterpillar Global Mining Europe GmbH
InventorsSwetlana Horn, Ulrich Pletsch
Life of this patent
Estimating the term…
Abstract
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.
Claims14
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;
- and
- a 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.
A shield support used in underground mining applications for supporting a roof, comprising:
- a shield canopy including an outer surface configured to support the roof, and an inner surface configured to face towards a floor;
- a prop head bearing device disposed at the inner surface of the shield canopy, the prop head bearing device 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;
- and
- a 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;
- and
- a hydraulic prop including a prop head configured to be pivotably received in the prop head receiving portion.
A method for securing a prop head of a hydraulic prop to a prop head bearing main body attached to a shield canopy of a shield support in underground mining applications, the prop head bearing main body including a prop head receiving portion, a first flange, which is disposed adjacent to the prop head receiving portion and includes a first flange bore for supporting a first securing pin configured to engage the prop head, and a first receiving portion including a groove and being disposed adjacent to the first flange and remote from the prop head receiving portion, the method comprising:
- positioning a first securing element in the groove of the first receiving portion, the first securing element including a first securing element bore and being adapted in shape to the first receiving portion, such that 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;
- inserting the first securing pin through the first securing element bore and the first flange bore, such that the prop head can be positioned in the prop head receiving portion;
- positioning the prop head including a first recess in the prop head receiving portion;
- and
- inserting the first securing pin into the first recess for securing the prop head to the prop head bearing main body.
Dependencies are inferred from the claim text.