Title:
DEVICE FOR COOLING CHISELS
Document Type and Number:
WIPO Patent Application WO/2012/126028
Kind Code:
A3
Abstract:
In a device for cooling chisels on cutting heads (1, 2) by means of water nozzles, wherein a cutting head (1, 2) is mounted on each side of the cutter bar (6), and wherein a nozzle carrying element (8) is arranged on the cutter bar (6), said nozzle carrying element (8) carrying two groups of nozzles for each cutting head (1, 2), a first group being located in the region of the transmission extension (7) and a second group being located behind the cutting heads (1, 2). Each of the nozzles of both the first group and the second group have a spray axis that is directed laterally towards the outside and is directed away from the mid-plane (27) that extends perpendicularly to the rotation axis (5) between the cutting heads (1, 2), and have an exit angle (α) such that the spray cones of adjacent nozzles overlap each other before striking the working face.
Inventors:
POGATSCHNIGG REINHOLD (AT)
SCHRUNNER CHRISTIAN (AT)
SCHRUNNER CHRISTIAN (AT)
Application Number:
PCT/AT2012/000071
Publication Date:
May 02, 2013
Filing Date:
March 20, 2012
Export Citation:
Assignee:
SANDVIK MINING & CONSTR OY (AT)
POGATSCHNIGG REINHOLD (AT)
SCHRUNNER CHRISTIAN (AT)
POGATSCHNIGG REINHOLD (AT)
SCHRUNNER CHRISTIAN (AT)
International Classes:
E21C35/22
Foreign References:
| DE3609754A1 | 1987-09-24 | |||
| DE4423166A1 | 1996-01-11 | |||
| DE102010022114A1 | 2011-11-24 | |||
| DE3429170A1 | 1986-02-20 |
Attorney, Agent or Firm:
HAFFNER UND KESCHMANN PATENTANWÄLTE OG (Wien, AT)
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