Automatic reversing mechanism for a rock drill
OwnerKevin Hollander, Michael Cragheadinventors
Life of this patent
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Abstract
A rock drill automatic reversing system can comprise a rifle bar which can comprise a groove end and a pawl end, wherein the groove end has helical shaped grooves, a double pawl comprising a body, a first wing, and a second wing, a first pawl support having at least one first slot opening in a first radial direction and a second pawl support having at least one opposing slot opening in an opposing radial direction. At least one ring gear guide, and at least one control key rod that transverses parallel to the axis of the rifle bar within the first pawl support and the second pawl support to interact with the double pawl to change the direction of the rock drill depending on the at least one control key rod's state.
Claims11
A rock drill automatic reversing system comprising:
- a rifle bar comprising a groove end and a pawl end, wherein the groove end has helical shaped grooves;
- a double pawl comprising a body, a first wing, and a second wing;
- a first pawl support having at least one first slot opening in a first radial direction and a second pawl support having at least one opposing slot opening in an opposing radial direction, the first and second pawl supports secured to the pawl end of the rifle bar, wherein the at least one first slot opening aligns with the at least one opposing slot opening to accommodate the body of the double pawl;
- at least one ring gear guide;
- and
- at least one control key rod that transverses parallel to the axis of the rifle bar within the first pawl support and the second pawl support to interact with the double pawl to change the direction of the rock drill depending on the at least one control key rod's state.
Dependencies are inferred from the claim text.