Method and arrangement for lubricating drill shank of rock drilling machine
AssigneeSandvik Mining and Construction Oy
InventorsMarkku Keskiniva, Juha Piispanen, Mauri Esko, Aimo Helin
Life of this patent
Estimating the term…
Abstract
A method for lubricating a drill shank of a rock drilling machine, wherein at least part of the flow of the pressure fluid of a hydraulic circuit of a device of the rock drilling machine performing at least one function is directed to the rotation mechanism of the drill shank for the purpose of lubricating the rotation mechanism of the drill shank.
Claims24
A method for lubricating a rotation mechanism of a drill shank in a rock drilling machine, the method comprising:
- directing to the rotation mechanism of the drill shank at least part of a flow of a pressure fluid of a hydraulic circuit of a device of the rock drilling machine that performs at least one function, for the purpose of lubricating the rotation mechanism of the drill shank, and
- circulating the pressure fluid used in lubricating the rotation mechanism of the drill shank back to a hydraulic system of the rock drilling machine, and then to the hydraulic circuit of the device of the rock drilling machine performing at least one function,
- wherein the pressure fluid used for lubricating the rotation mechanism of the drill shank is returned back to a pressure medium container that is in the hydraulic system of the rock drilling machine, and
- wherein the device of the rock drilling machine performing at least one function is a rotating device of the rock drilling machine.
A method for lubricating a rotation mechanism of a drill shank in a rock drilling machine, the method comprising:
- directing to the rotation mechanism of the drill shank at least part of a flow of a pressure fluid of a hydraulic circuit of a device of the rock drilling machine that performs at least one function, for the purpose of lubricating the rotation mechanism of the drill shank, and
- circulating the pressure fluid used in lubricating the rotation mechanism of the drill shank back to a hydraulic system of the rock drilling machine, and then to the hydraulic circuit of the device of the rock drilling machine performing at least one function,
- wherein the pressure fluid used for lubricating the rotation mechanism of the drill shank is returned back to a pressure medium container that is in the hydraulic system of the rock drilling machine,
- wherein the device of the rock drilling machine that performs at least one function is a percussion device or a rotating device, and
- wherein pressure fluid exiting the device of the rock drilling machine performing at least one function is directed to the rotation mechanism of the drill shank for the purpose of lubricating the rotation mechanism.
An arrangement for lubricating a rotation mechanism of a drill shank of a rock drilling machine, in which arrangement at least part of a flow of a pressure fluid of a hydraulic circuit of a device of the rock drilling machine performing at least one function is arranged to be directed to the rotation mechanism of the drill shank for the purpose of lubricating it, and that the pressure fluid used in lubricating the rotation mechanism of the drill shank is arranged to circulate back to a hydraulic system of the rock drilling machine, and then to a hydraulic circuit of the device of the rock drilling machine performing at least one function,
- wherein the pressure fluid used for lubricating the rotation mechanism of the drill shank is returned back to a pressure medium container that is in the hydraulic system of the rock drilling machine, and
- wherein the device of the rock drilling machine performing at least one function is a rotating device of the rock drilling machine.
An arrangement for lubricating a rotation mechanism of a drill shank of a rock drilling machine, in which arrangement at least part of a flow of a pressure fluid of a hydraulic circuit of a device of the rock drilling machine performing at least one function is arranged to be directed to the rotation mechanism of the drill shank for the purpose of lubricating it, and that the pressure fluid used in lubricating the rotation mechanism of the drill shank is arranged to circulate back to a hydraulic system of the rock drilling machine, and then to a hydraulic circuit of the device of the rock drilling machine performing at least one function,
- wherein the pressure fluid used for lubricating the rotation mechanism of the drill shank is returned back to a pressure medium container that is in the hydraulic system of the rock drilling machine,
- wherein the device of the rock drilling machine that performs at least one function is a percussion device or a rotating device, and
- wherein the pressure fluid directed to the rotation mechanism of the drill shank for lubricating it is arranged to be derived from the pressure fluid exiting the device of the rock drilling machine performing at least one function.
Dependencies are inferred from the claim text.